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Panasonic Urban Multi MX1R Series, Service Manual, Page: 566 / 643

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Panasonic Urban Multi MX1R Series Service Manual Download Page 566

PACD011001C2

Troubleshooting (OP: Central Remote Controller)

Troubleshooting   UM Combination “MA1R Series” Using R-407C

545

6.3

Malfunction of Transmission Between Optional Controllers for Centralised 

Control

Remote Controller 
Display

M8

Supposed Causes

„

Malfunction of transmission between optional controllers for centralised control

„

Defect of PC board of optional controllers for centralised control

Troubleshooting

(VF072)

Is

transmission wiring 

disconnected or wired 

incorrectly? 

The PC board of one of the optional 
controllers for centralised control is 
defective. Try turning on/off using each 
optional controllers for centralised 
control, and replace the PC board of 
the one that is unable to control the 
indoor unit.

NO

NO

Fix the wiring correctly.

YES

YES

Has a once

connected optional

controller for centralised 

control been disconnected 

or its address

changed?

Turn on power supply for all optional 
controllers for centralised control.

Reset power supply simultaneously for 
all optional controllers for centralised 
control.

YES

NO

Is

the power supply

turned on for all optional

controllers for

centralised control?

Set reset switch to "normal."

YES

NO

Is

the reset switch

of all optional controllers

for centralised control set to 

''normal?''

Caution

Be sure to turn off power switch before connect or disconnect connector, 
or parts damage may be occurred.

Summary of Contents for Urban Multi MX1R Series

Page 1: ...ions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death IMPORTANT SAFETY NOTICE There are special co...

Page 2: ...nction 10 1 1 Outdoor Unit Refrigerant System Diagram 10 1 2 List of Safety Devices and Functional Parts Setting Values 18 1 3 Flow of Refrigerant in Each Operation Mode ME1 Series 20 1 4 Outline of Control ME1 Series 25 1 5 Safety for Restart 27 1 6 Equalized Oil Level Operation Equalized Oil Level between Twin Compressors 30 1 7 Oil Return Operation 31 1 8 Defrost 33 1 9 Pressure Equalization Co...

Page 3: ...oller Double Remote Controllers Group Remote 106 1 18 Indoor Field Setting 108 1 19 Centralised Control Group No Setting 110 1 20 Setting of Master Remote Controller 112 1 21 Centralised Control Devices 114 1 22 Central Remote Controller CZ 01ESM11P 116 1 23 Unified ON OFF Controller CZ 01ANA11P 123 1 24 Schedule Timer CZ 01ESW11P 126 1 25 Combining Different Types of Centralised Control Devices 1...

Page 4: ...Pipe Pressure Sensor 178 3 24 Outdoor Unit Malfunction of Suction Pipe Pressure Sensor 179 3 25 Outdoor Unit Malfunction of Oil Temperature Thermistor R5T 180 3 26 Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure 181 3 27 Negative Phase Open Phase 182 3 28 Malfunction of Transmission between Indoor Units 183 3 29 Malfunction of Transmission between Remote Control...

Page 5: ...lers for Centralised Control 210 7 5 Address Duplication Improper Setting 211 8 Troubleshooting OP Unified ON OFF Controller 212 8 1 Operation Lamp Blinks 212 8 2 Display Under Host Computer Integrate Control Blinks Repeats Single Blink 213 8 3 Display Under Host Computer Integrate Control Blinks Repeats Double Blink 215 80 6HULHV 8VLQJ 5073 QYHUWHU 0 45 6HULHV 2 HDW 5HFRYHU 0 45 6HULHV 1111111111...

Page 6: ...11111111111111111111111111111115 6 1 Test Operation 274 1 1 Procedure and Outline 274 1 2 When Power is Turned On 276 1 3 Outdoor Unit PC Board Ass y 277 1 4 Setting Modes MX1R Series 281 1 5 Setting Modes ME1R Series 288 1 6 Sequential Start 294 1 7 BMS Interface Adaptor for Outdoor Unit MX1R Series 295 1 8 BMS Interface Adaptor for Outdoor Unit ME1R Series 298 1 9 Cool Heat Mode Selection MX1R S...

Page 7: ...tronic Expansion Valve Y1E 360 3 18 Outdoor Unit Abnormal Discharge Pipe Temperature 361 3 19 Outdoor Unit Malfunction of Thermistor R1T for Outdoor Air 362 3 20 Outdoor Unit Malfunction of Discharge Pipe Thermistor R3T 363 3 21 Outdoor Unit Malfunction of Thermistor R4T for Suction Pipe 364 3 22 Outdoor Unit Malfunction of Thermistor R2T for Heat Exchanger 365 3 23 Outdoor Unit Malfunction of Dis...

Page 8: ...entralised Control 393 6 5 Address Duplication Improper Setting 394 7 Troubleshooting OP Schedule Timer 395 7 1 Malfunction of Transmission between Central Remote Controller and Indoor Unit 395 7 2 PC Board Defect 396 7 3 Malfunction of Transmission between Optional Controllers for Centralised Control 397 7 4 Improper Combination of Optional Controllers for Centralised Control 398 7 5 Address Dupl...

Page 9: ...111111111111111111111111111111111111111111111111111111117 4 1 Operation Flowcharts 483 1 1 Indoor Unit Operation Flowchart 483 2 Troubleshooting by Remote Controller 488 2 1 The INSPECTION TEST Button 488 2 2 Self diagnosis by Wired Remote Controller 489 2 3 Self diagnosis by Wireless Remote Controller 490 2 4 Operation of The Remote Controller s Inspection Test Operation Button 493 2 5 Remote Con...

Page 10: ... of Transmission Between Outdoor Units 526 3 30 Malfunction of Transmission Between Master and Slave Remote Controllers 527 3 31 Malfunction of Transmission Between Indoor and Outdoor Units in the Same System 528 3 32 Excessive Number of Indoor Units 529 3 33 Address Duplication of Central Remote Controller 530 3 34 Refrigerant System not Set Incompatible Wiring Piping 531 3 35 Malfunction of Syst...

Page 11: ...1111111111111111111111111111111111111111111188 1 Backup and Emergency Operation 558 1 1 Backup and Emergency Operation 558 2 Pump Down Operation 560 2 1 Pump Down Operation 560 SSHQGL 1111111111111111111111111111111111111111111111111111111111111111111111111111111111111894 1 Wiring Diagrams Outdoor Unit 562 1 1 MX1 Series 562 1 2 ME1 Series Heat Recovery 564 1 3 MX1R Series 566 1 4 ME1R Series Heat...

Page 12: ...A52 KRP4A53 603 6 3 Signal Output Adaptor PCB for Optional Accessory KRP1B61 KRP1B2 KRP1B3 606 6 4 Interface Adaptor for Urban Split Series CZ 102AP11P 608 6 5 Interface Adaptor for Other Air Conditioners CZ 103AP11P 610 6 6 BMS Interface Adaptor for Outdoor Units DTA104A51 DTA104A52 613 6 7 BMS Interface Adaptor DCS302A52 616 7 Precautions in Servicing The Models with New type Refrigerant 620 7 1...

Page 13: ...PACD011001C2 xii Table of Contents ...

Page 14: ...he plug socket before disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the dischar...

Page 15: ...tools can cause an electrical shock excessive heat generation or fire When relocating the equipment make sure that the new installation site has sufficient strength to withstand the weight of the equipment If the installation site does not have sufficient strength and if the installation work is not conducted securely the equipment can fall and cause injury Be sure to install the product correctly...

Page 16: ...r be sure to disposed of the old battery to prevent children from swallowing it If a child swallows the coin battery see a doctor immediately Warning Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If a ...

Page 17: ...if the equipment is not properly grounded Improper grounding can cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 Mohm or higher Faulty insulation can cause an electrical shock Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and...

Page 18: ... a commercial elevator overcoming site transportation problems Refrigerant Type Outdoor Unit Maximum n of Connectable indoor units Range of Total Capacity Index 8 13 16 20 30 32 R 407C Inverter CU 5MX1SPP 62 5 162 5 CU 8MX1SPP 100 260 CU 10MX1SPP 125 325 Heat Recovery CU 8ME1XPK 100 260 CU 10ME1XPK 125 325 Combination Inverter PA 16MA1XPK 200 520 PA 18MA1XPK 225 585 PA 20MA1XPK 250 650 PA 24MA1XPK...

Page 19: ...UMHPP Corner Type CS DM1HPK Built in Type CS FMHPP Small Duct Type CS NM1HPP Ducted Type CS EMHPK Ceiling Type CS TMJPL Wall Type CS KM1HPK Floor Standing Type CS PM1HPK Cancealed Floor Standing Type CS RM1HPK Capacity Index 20 25 31 25 40 50 62 5 80 100 125 200 250 eg Selected indoor units CS 25LMHPP CS 100LMHPP CS 200EMHPK CS 40FMHPP Connection ratio 25 100 200 40 365 Possible outdoor unit PA 16...

Page 20: ...n P Europe Power supply S X 3φ 400V 50Hz M Urban Multi UM Type X Inverter heat pump E Heat recovery inverter A Combination inverter main unit B Combination inverter sub unit Capacity 5 5HP 8 8HP 10 10HP 16 16HP 20 20HP 24 24HP 26 26HP 28 28HP 30 30HP CU Outdoor Unit CS Indoor Unit CZ Accessories PA Combinationed Outdoor Unit M201 ...

Page 21: ...Multi UM Type L 2 way cassette type U 4 way cassette type D Corner type F Built in type N Small duct type E Ducted type T Ceiling type K Wall type P Floor standing type R Concealed floor standing type Capacity 20 0 8HP 25 1HP 32 1 25HP 40 1 6HP 50 2 0HP 63 2 5HP 80 3 2HP 100 4HP 125 5HP 200 8HP 250 10HP CS Indoor Unit CU Outdoor Unit CZ Accessories M200 ...

Page 22: ...1 80 6HULHV 8VLQJ 5055 80 6HULHV 8VLQJ 5055 80 6HULHV 8VLQJ 5055 80 6HULHV 8VLQJ 5055 QYHUWHU QYHUWHU QYHUWHU QYHUWHU 0 4 6HULHV 0 4 6HULHV 0 4 6HULHV 0 4 6HULHV HDW 5HFRYHU HDW 5HFRYHU HDW 5HFRYHU HDW 5HFRYHU 0 4 6HULHV 0 4 6HULHV 0 4 6HULHV 0 4 6HULHV ...

Page 23: ...PACD011001C2 2 Urban Multi MX1 ME1 Series Using R 22 ...

Page 24: ...Urban Multi MX1 ME1 Series Using R 22 3 3DUW4 3DUW4 3DUW4 3DUW4 HQHUDO QIRUPDWLRQ HQHUDO QIRUPDWLRQ HQHUDO QIRUPDWLRQ HQHUDO QIRUPDWLRQ 1 Outline of System 4 1 1 MX1 Series 4 1 2 Changes in MX1 Series Functions Parts 5 1 3 ME1 Series 7 ...

Page 25: ...Outline of System PACD011001C2 4 General Information Urban Multi MX1 ME1 Series Using R 22 1 Outline of System 1 1 MX1 Series 1 1 1 Urban Multi Inverter MX1 Series System Outline ...

Page 26: ...to a total of 2 000 meters Max wiring length up to 1 000 meters Indoor unit terminal block Outdoor unit terminal block 2 central remote controller can be connected in a transmission system UM Inverter MX1 Series equipment can be connected with two central remote controllers and can individual control 128 unit 64 units T 2 on a single transmission line Change in Mode of Transmission Between Outdoor...

Page 27: ...e can be set to prevent the ceiling from being soiled Able to Use Wireless Remote Controllers The multi flow double flow ceiling suspended and wall mounted types can be fitted with a wireless remote controller kit Other types can use a separate wireless remote controller 1 2 3 Changes in Outdoor Units Equipped with Oil Temperature Sensor Thermistor 8 and 10HP Oil temperature detection has been inc...

Page 28: ...of 50 m and height difference of 15 m between indoor units Outside temperature of 35 C for operation mode A 0 C for operation mode D and typical seasonal outside temperatures for others No 1 No 2 No 3 No 4 HR box Outdoor unit CU 10ME 10HP Indoor unit A All units in cooling operation D All units in heating operation B Most units in cooling operation and a few units in heating operation C Most units...

Page 29: ... Item Model of outdoor unit and HR box Total capacity of connectable indoor units Max number of connectable indoor units Range A Total indoor unit capacity CU 8ME1XPA 11 2 to 29 1kW 13 units CU 10ME1XPA 14 to 36 4kW 16 units Range B Total indoor unit capacity allowed for simultaneous cooling heating operations CU 8ME1XPA 11 2kW or more 13 units CU 10ME1XPA 14kW or more 16 units Range C Total indoo...

Page 30: ...8 Defrost 33 1 9 Pressure Equalization Control ME1 Series 36 1 10 Frequency Limit Control by Pressure Equalization ME1 Series 37 1 11 HR Changeover Control ME1 Series 38 1 12 Pump Down Residual Operation 39 1 13 Step Down Safety Control Standby Forced Thermostat OFF Stop Due to Malfunction 42 1 14 Control During Low Outdoor Air Temperature Cooling 45 1 15 Low Noise Control 47 1 16 Demand Control 4...

Page 31: ...Function PACD011001C2 10 Function Urban Multi MX1 ME1 Series Using R 22 1 Function 1 1 Outdoor Unit Refrigerant System Diagram 1 1 1 CU 5MX1SPE ...

Page 32: ...duce load when the compressor starts D Outdoor unit electronic expansion valve Y1E Expansion valve when heating Senses compressor suction pipe and low pressure equivalent saturated temperature and carries out superheat degree control E Solenoid valve injection Y3S Controls injection in order to prevent overheating F Heat exchange pipe Subcooling so that refrigerant drift doesn t occur between indo...

Page 33: ...Function PACD011001C2 12 Function Urban Multi MX1 ME1 Series Using R 22 1 1 2 CU 8 10MX1SPE 4D014597 SENPL INV STD SENPH ...

Page 34: ...ly recycled to the compressor via capillary tube E Solenoid valve hot gas bypass Y2S Valve is opened by low pressure safety control when low pressure drops Balances high low pressure when off in order to reduce load when the compressor starts F Outdoor unit electronic expansion valve Y1E Expansion valve when heating Senses compressor suction pipe and low pressure equivalent saturated temperature a...

Page 35: ...Function PACD011001C2 14 Function Urban Multi MX1 ME1 Series Using R 22 1 1 3 CU 8 10ME1XPA Heat Recovery ...

Page 36: ...ing cooling and heating operation mode change H Solenoid valve for liquid pressure Y6S This valve opens a bypass to send hot gas to the receiver and controls the liquid pressure I Pressure sensor high pressure red SENPH This semiconductor pressure sensor detects discharge pressure The detected refrigerant pressure is used to evaluate the operation conditions of indoor units Heating operation The s...

Page 37: ...ipe and outdoor unit suction pipe B Solenoid valve discharge side Y3S Turn ON this valve to operate of discharge oil return when indoor unit is set for heating Connect indoor unit gas pipe and outdoor unit discharge pipe C Solenoid valve Drift prevention injection Y1S The only valve in HR box of which indoor unit is in heating operation when simultaneous cooling heating operation is applied in the...

Page 38: ...PACD011001C2 Function Function Urban Multi MX1 ME1 Series Using R 22 17 1 1 5 Function of Thermistors and Pressure Sensors Outdoor Unit CU 8 10MX1SPE ...

Page 39: ...pressure safety 20SP 688 6 OFF 27 5 0 1 0kg cm2 ON 20 0 1 0 1 0kg cm S2PH Pressure switch for high pressure safety 20SP 688 6 OFF 27 5 0 1 0kg cm2 ON 20 0 1 0 1 0kg cm Fusible plug FPG 3D 70 75 C Sensor SENPH Pressure sensor PS8030A 0 30kg cm 0 2 94MPa SENPL Pressure sensor PS8030A 0 10kg cm 0 0 98MPa R1T Thermistor for outdoor air 3 5 360KΩ R2T Thermistor for heat exchange 3 5 360KΩ R3T Thermisto...

Page 40: ...0 0 1 0 1 0kg cm Fusible plug FPG 3D 70 75 C Sensor SENPH Pressure sensor PS8030A 0 30kg cm 0 2 94MPa SENPL Pressure sensor PS8030A 0 10kg cm 0 0 98MPa R1T Thermistor for outdoor air 3 5 360KΩ R2 1T R2 2T Thermistor for heat exchange 3 5 360KΩ R3 1T Thermistor for inverter discharge pipe 3 5 400KΩ R3 2T Thermistor for standard discharge pipe 3 5 400KΩ R4 1T R4 2T Thermistor for suction pipe 3 5 36...

Page 41: ...Function PACD011001C2 20 Function Urban Multi MX1 ME1 Series Using R 22 1 3 Flow of Refrigerant in Each Operation Mode ME1 Series 1 3 1 Cooling High pressure Low pressure ...

Page 42: ...PACD011001C2 Function Function Urban Multi MX1 ME1 Series Using R 22 21 1 3 2 Heating High pressure Low pressure ...

Page 43: ...Function PACD011001C2 22 Function Urban Multi MX1 ME1 Series Using R 22 1 3 3 Simultaneous Cooling and Heating High pressure Low pressure ...

Page 44: ...PACD011001C2 Function Function Urban Multi MX1 ME1 Series Using R 22 23 1 3 4 Discharge Oil Return Defrost High pressure Low pressure ...

Page 45: ...Function PACD011001C2 24 Function Urban Multi MX1 ME1 Series Using R 22 1 3 5 Suction Oil Defrost High pressure Low pressure ...

Page 46: ...motorized valves Y1E and Y2E to maintain a constant superheat SH level at the outlet of the outdoor heat exchanger evaporator SHs Ts Te SHs 5 C Ts1 Suction pipe temperature R4 1T Ts2 Suction pipe temperature R4 2T 3 Heat exchanger PI control Provides PI control for the motorized valve Y1E to maintain TeS and TcS at constant Motorized valve mode L M Factory setting H 2 5 5 5 8 5 L M Factory setting...

Page 47: ...Heat exchanger 2 FAN EV mode Cooling operation Heat operation COND COND H ON 1 COND COND L ON 1 COND COND H OFF 1 COND COND L OFF 1 COND EVAP H ON 2 COND EVAP L ON 2 COND EVAP H OFF 2 COND EVAP L OFF 2 COND EVAP L OFF 3 COND EVAP L OFF 4 COND EVAP H OFF 4 COND EVAP H ON 4 EVAP EVAP L OFF 4 EVAP EVAP H OFF 4 EVAP EVAP H ON 4 EVAP EVAP H ON 5 ...

Page 48: ...to equalize pressure after the compressor stops fully close the indoor unit s electronic expansion valve for 5 minutes 10 minutes for 8 and 10HP 1 5 2 Soft Start The following control is carried out to protect the compressor and inverter 1 Operates at low frequency fixed for 1 minute after compressor starts Prevents liquid refrigerant backflow 2 Pressure equalizing and hot gas bypass solenoid valv...

Page 49: ...Note 1 30Hz 30Hz OFF for products produced after Aug 99 2 Note 2 When heating low pressure 1 5 kg cm 0 147MPa running frequency 54Hz 54Hz OFF Low pressure 1 7 kg cm 0 167MPa 30 sec continuous release Y2S Hot gas bypass solenoid valve Y3S Injection solenoid valve Y2S Hot gas bypass solenoid valve Y3S Injection solenoid valve MX1 Series 11 min 30 sec 1 min 5 min 30 sec 30 sec 4 min 30 sec Compressor...

Page 50: ...Heating Lay Up Start Make the compressor s upper limit frequency 60Hz 60Hz OFF for 10 minutes 20 seconds after the compressor starts If the low pressure becomes 1 5kg cm 0 147MPa within 10 minutes after starting Y2S is actuated and outdoor unit EV becomes 0 pulses 10 minutes after start the unit starts up as described below 8 10 Hp Y2S Hot gas bypass solenoid valve Y3S Injection solenoid valve If ...

Page 51: ... 2 hours in order to prevent lack of oil caused by difference in pressure inside the dome due to drift and then reverts to normal operation If oil pressure equalization is not achieved during 5 minutes by stopping or step down control oil pressure equalization is carried out when the compressor starts running With an inverter compressor operation however if the standard compressor remains off for ...

Page 52: ...ases Step 1 Step 2 30 sec after oil return start or high pressure 16kg cm 1 57MPa Step 2 Step 3 High pressure 7 5 kg cm 0 74MPa Step 3 Step 2 High pressure 15 kg cm 1 47MPa Step 2 Step 1 High pressure 20 kg cm 1 96MPa When heating only On when low pressure 0 3 kg cm 0 029MPa Off when low pressure 0 8 kg cm 0 078MPa Notes 1 If the compressor frequency continues at 68Hz 38Hz ON for 8 10HP or more fo...

Page 53: ...ion oil return Compressor 86Hz OFF EEV 2000pls Outdoor Unit Fan H ON Outdoor Unit Heat Exchanger Condenser 4 Way Valve OFF Injection 1 Td Protection Control Injection 2 Td Protection Control Hot Gas ON at Lp 0 3k 4 Minutes Elapsed Td Discharge Pipe Temperature Step 3 HR solenoid valve changeover Compressor 38Hz OFF EEV 2000pls Outdoor Unit Fan H ON Outdoor Unit Heat Exchanger Condenser 4 Way Valve...

Page 54: ...if frost builds up easily and set to L if not Factory set is position M Defrost is carried out when the coil temperature rises to 12 5ºC or higher and is completed after defrosting for 10 minutes After defrosting indoor units carry out hot start operation and the DEFROSTING display lights until hot start is complete Defrost conditions are not counted from completion of power supply set up and defr...

Page 55: ...tion L Tcoil R2 1T R2 2T 12 C 2 If position M Tcoil R2 1T R2 2T 10 C 3 If position H Tcoil R2 1T R2 2T 8 C Because defrost operation is carried out set to the H position if frost builds up easily and set to L if not Factory set is position M OR At least 20 minutes have elapsed since completion of oil return or since compressor starts High pressure 20k Tc 52 4ºC Compressor is running at least 30 mi...

Page 56: ...etion Condition or All of R2 1T R2 2T 12 5ºC Pc 20 5k 10 Minutes Elapsed Since Defrost Operation Start Step 3 HR solenoid valve changeover Compressor 38Hz OFF EEV 2000pls Outdoor Unit Fan OFF OFF Outdoor Unit Heat Exchanger Condenser 4 Way Valve OFF Injection 1 Td Protection Control Injection 2 OFF Hot Gas ON 40 Seconds Elapsed Step 4 Refrigerant is discharged from accumulator Compressor 76Hz OFF ...

Page 57: ...hing operations Equalizing operation demand Pressure equalization solenoid valve Y1S is ON at following conditions Operating condition of indoor unit with thermostat ON is different from the condition of HR boxes solenoid valve see page 38 Not in startup control Liquid refrigerant not being discharged from accumulator Not in residual pump down operation 7 minutes passed after completion of previou...

Page 58: ... ME1 Series The compressor operating capacity is limited to prevent abnormal noise caused by the equalizing operation Operating conditions During the first 30 seconds the following operations are conducted Equalizing operation demand issued Not in cooling operation only INV outdoor unit Compressor operating capacity 54Hz OFF ...

Page 59: ...ling Condition 2 Heating Condition 3 Condition 4 Oil return defrost Oil return defrost complete Discharge defrost Discharge oil return Suction defrost Suction oil return VF006 Condition Indoor unit operating condition Y3S Y2S Y1S ON Open OFF Closed 1 Cooling Heating stop 1 OFF ON OFF 2 Heating thermostat OFF Heating thermostat ON ON OFF 2 3 Discharge oil return OFF OFF OFF 4 Suction oil return Def...

Page 60: ...peration residual operation is not carried out if the total of 1 2 3 is 10 minutes or more 3 When outdoor temperature R1T 5 C and a stop command is received from the thermostat sensor etc residual operation is carried out for 10 minutes without fail Operation may however stop for discharge pipe or high low pressure safety Discharge pipe thermistor R3 1T on inverter side 95 C or lower OR Outside ai...

Page 61: ...s or more Outdoor air R1T Compressor Electronic expansion valve Pressure equalizing solenoid valve Time INV STD R1T 10 C 86Hz OFF 0 300 pulses ON or OFF 10 min 10 C R1T 0 C 76Hz OFF 0 300 pulses ON or OFF 10 min R1T 0 C 60Hz OFF 0 300 pulses ON or OFF 10 min Secondary side heat exchanger 4 way valve Y2R is ON Discharge pipe thermistor R3 1T on inverter side 95 C or lower OR Outside air temperature...

Page 62: ...al operation is not carried out even if a stop command comes Forced thermostat OFF occurs if defrost or oil return signal comes during residual operation Outdoor air R1T Compressor Electronic expansion valve Time INV STD R1T 10 C 86Hz OFF 0 300 pulses 10 min 10 C R1T 0 C 76Hz OFF 0 300 pulses 10 min R1T 0 C 60Hz OFF 0 300 pulses 10 min ...

Page 63: ...0kg cm 0 098MPa Lp 0 5kg cm 0 049MPa Hot gas bypass valve ON 116Hz OFF 76Hz or 60Hz ON 76Hz Injection valve ON Lp 0 8kg cm 0 078MPa 54 Hz OFF 54Hz as lower limit Forced OFF by thermostat Up to 2 times in 30 minutes E4 stop due to malfunction Hot gas bypass valve ON VF002 Td 130 C Td 105 C or DSH 55 C DSH Discharge Super Heating or Td 90 C Lp 3kg cm Control during cooling or 0 294MPa Td 90 C Lp 2kg...

Page 64: ...cm 2 695MPa Heat exchanger capacity control 76Hz OFF Forced thermostat OFF Up to 2 times in 30 minutes E3 stop due to malfunction VF001 Lp 2 0kg cm 0 196MPa DSH 15 C Lp 1 2kg cm 0 118MPa LP 0 8 R1T 5ºC LP 0 5 R1T 5ºC Lp 0 3kg cm 0 029MPa Lp 0kg cm 0MPa Cooling 30Hz OFF Heating simultaneous cool heat operation Hot gas bypass valve ON 106Hz OFF or 60Hz ON Injection valve ON Lp 1 7kg cm 0 167MPa Forc...

Page 65: ...e injection valve for either one goes OFF and discharge super heating DSH continues for 10 minutes at temperature difference of less than 10 C the inverter standard compressor are controlled at 76 Hz or less OFF for 3 minutes Control According to Outdoor Temperature If the outdoor temperature exceeds 23 C when heating forced thermostat OFF is carried out in order to prevent a safety device from be...

Page 66: ...ng to operating status Low outdoor temperature cooling operation Step 1 Fully open L 76 Step 2 Fully open OFF 48 Operating status Electronic expansion valve Fan Frequency Hz M1F M2F CU 8 CU 10 Normal operation Fully open H ON Changes according to operating status Low outdoor temperature cooling operation Step 1 1 Fully open L ON 96 116 Step 1 2 Fully open H OFF 86 106 Step 1 3 Fully open L OFF 76 ...

Page 67: ...mal operation Step 2 Cooling with compressor running doesn t include oil return High pressure 7 5 kg cm 0 735 MPa Radiator fin temperature 60 C Compressor off or Other than cooling includes oil return or High pressure 15 8 kg cm 1 548 MPa or Radiator fin temperature 80 C Conditions satisfied Conditions satisfied VF007 2 ...

Page 68: ...ep1 2 high pressure 24 kg cm 2 35 MPa Step2 1 high pressure 19 kg cm 1 86 MPa Low noise control reduces capacity by limiting the fan and compressor The load when heating is particularly large at night when the outdoor temperature is low and could result in insufficient capacity During low noise control retry is unlimited for standby forced thermostat OFF produced by high pressure low pressure or d...

Page 69: ... electric power consumption down to approx 70 Demand 2 Holds electric power consumption down to approx 40 Demand 3 Forced thermostat OFF An optional BMS interface adaptor for outdoor units is required for demand control For method of connection see demand operation in the test operation section Control is carried out by limiting the upper limit for frequency of demand 1 and demand 2 as given in th...

Page 70: ...led every 20 seconds by two pressure sensors and the inverter compressor is controlled in 20 stages by microcomputer Frequency 30Hz 34Hz 38Hz 42Hz 48Hz 54Hz 60Hz 68Hz 76Hz 86Hz 96Hz 106Hz 116Hz Min output Max output VE004 Commercial power supply compressor off Frequency 30Hz OFF 34Hz OFF 38Hz OFF 42Hz OFF 48Hz OFF 54Hz OFF 60Hz OFF 68Hz OFF 76Hz OFF 86Hz OFF 96Hz OFF 106Hz OFF Commercial power sup...

Page 71: ...ing to compressor operating frequency length of piping and indoor load The range is 10 C target Te 5 5 C Piping length is determined automatically during oil return operation Target Tc becomes 3 C higher when indoor load is large Target Tc is controlled in accordance with the following conditions Outdoor temp 10 C target Tc 46 C Outdoor temp 10 C target Tc 49 C Target Tc 43 C when high pressure 17...

Page 72: ...e Lp 1 0 kg cm Conditions given on the left continue for 30 min VF008 While compressor is running and 4 way valve ON heating cycle and Evaporator outlet superheat temperature 20 C difference and Outdoor unit electronic expansion valve 2000 pulses completely open Gas depletion alarm cancellation Gas depletion alarm U0 is displayed Conditions given on the left continue for 60 min Compressor off or 4...

Page 73: ...oat Switch is Tripped while the Cooling Thermostat is ON 1 The objective of residual operation is to completely drain any moisture adhering to the fin of the indoor unit heat exchanger when the thermostat goes off during cooling operation 2 One cycle consists of 5 minutes of operation 5 seconds stop and another 5 minutes of operation 1 20 2 When the Float Switch is Tripped during Cooling OFF by Th...

Page 74: ...h is not reset even after the 5 minutes operation 5 seconds stop 5 minutes operation cycle ends operation continues until the switch is reset 1 20 4 When the Float Switch is Tripped and AF is Displayed on the Remote Controller Note If the float switch is tripped five times in succession a drain malfunction is determined to have occurred AF is then displayed as operation continues ...

Page 75: ...ention of Oil Dilution during Defrost The unit controls upper limit frequency of the compressor and is designed to prevent oil from being diluted while defrosting by means of an oil temperature sensor Startup subsequent to defrosting is improved by the oil temperature sensor R5T Te 10 C SH 10 C R5T Te 10 C SH 5 C VF010 R5T Te 10 C INV 86Hz STD ON R5T Te 10 C INV 116Hz STD ON VF083 R5T Te 10 C INV ...

Page 76: ...lable on 2 way cassette 4 way cassette and corner types P0 P1 P2 P4 P3 P0 P1 P2 P4 P3 P0 P0 P1 P2 P4 P4 P2 P1 P0 P4 P4 P3 P2 P1 P0 P3 Existing position Draft prevention position Standard Setting position Ceiling soiling prevention position Draft prevention position Standard position Prohibited Prohibited Dirt prevention position P0 P0 P0 P1 P2 P2 P1 P3 P3 P4 P4 P1 P2 P3 P4 Same as existing positio...

Page 77: ...r the preset temperature Ex When cooling Assuming the preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 30 C A F This example also assumes there are several other air conditioners the UM system is off and that temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 18 C to 23 C A C Remote cont...

Page 78: ...ntroller can be used so that suction temperature is higher than the preset temperature Ex When heating Assuming the preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 28 C A F This example also assumes there are several other air conditioners the UM system is off and that temperature changes even when the thermostat sensor is off Body thermostat sen...

Page 79: ... too low the unit enters freeze prevention operation in accordance with the following conditions and is also set in accordance with the conditions given below Conditions for starting freeze prevention Temperature is 1 C or less for total of 40 min or temperature is 5 C or less for total of 10 min Conditions for stopping freeze prevention Temperature is 7 C or more for 10 min continuously Ex Case w...

Page 80: ...ies 87 1 10 Cool Heat Mode Switching ME1 Series 92 1 11 Low Noise Demand Operation MX1 Series 94 1 12 Low Noise Operation ME1 Series 96 1 13 Demand Control ME1 Series 97 1 14 Wiring Check Operation 98 1 15 Indoor Unit PCB Ass y 99 1 16 Remote Controllers Wired and Wireless 100 1 17 Control by Remote Controller Double Remote Controllers Group Remote 106 1 18 Indoor Field Setting 108 1 19 Centralise...

Page 81: ...aken control transmission wiring loose screws Piping size presence of thermal insulation Measurement of main power circuit insulation Addition or replenishment of refrigerant as needed Fully open respective stop valves on liquid gas Use a 500V megar tester Be sure to record addition or replenishment VF128 Turn on outdoor unit power Set various selectable modes on outdoor unit PC board Turn on indo...

Page 82: ...eck operation Even if it s the heating season set to cooling mode in order to prevent liquid from backing up To enter the test operation mode push the inspection test operation button of the indoor unit remote controller 4 times Push once more to return to the normal operation mode Make sure cold air is coming from the indoor unit Run the indoor units one at a time and make sure that the correspon...

Page 83: ...or up to 10 minutes in order for master power supply to be set automatically Outdoor unit HWL lamp On Test lamp H2P Flicker Can be set while in operation Indoor unit If the ON OFF button is pushed during the aforementioned operation the operation lamp lights but the unit will not run Returns to normal when automatic setting is complete 1 2 3 If outdoor indoor or HR box is extended or if indoor out...

Page 84: ...PACD011001C2 Test Operation Test Operation Urban Multi MX1 ME1 Series Using R 22 63 1 3 Outdoor Unit PC Board Ass y 1 3 1 CU 8 10MX1SPE ...

Page 85: ...or data Wiring check button Push and hold for 5 sec to start wiring check Reset button Push and hold for 5 sec if the indoor unit s PC board has been replaced or there has been a change in the combination of indoor and outdoor units such as indoor unit extension etc 3 Jumper pin Forced defrost operation by short circuit Setting mode 1 H1P off Push 1 time Monitor mode H1P flickers Push 1 time Push ...

Page 86: ...PACD011001C2 Test Operation Test Operation Urban Multi MX1 ME1 Series Using R 22 65 1 3 2 CU 8 10ME1XPA Heat Recovery ...

Page 87: ...or data Wiring check button Push and hold for 5 sec to start wiring check Reset button Push and hold for 5 sec if the indoor unit s PC board has been replaced or there has been a change in the combination of indoor and outdoor units such as indoor unit extension etc 3 Jumper pin Forced defrost operation by short circuit Setting mode 1 H1P off Push 1 time Monitor mode H1P flickers Push 1 time Push ...

Page 88: ... low noise operation and sequential start H1P off Setting mode 2 Mode for changing operating status and setting addresses used primarily for service H1P on Monitor mode Mode for checking setting made in the setting modes number of connected units etc H1P flickers Push the MODE button Push the MODE button Push the SET button Push and hold the MODE button for 5 sec Push the MODE button Setting mode ...

Page 89: ...start to OFF Setting complete GROUP MASTER cool heat selection ON low noise OFF sequential start MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P SET MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P C H SELECT SET MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P C H SELECT MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H...

Page 90: ...ith CU 5 1 2 3 4 5 6 7 8 9 10 Setting item EMG 1 Cool heat group address Low noise demand address Forced fan switch Indoor unit forced operation Frequency fix Te setting Tc setting Defrost setting Not used Description Emergency operation when malfunction occurs Address for cool heat group operation Address for low noise demand group operation Fan of stopped indoor unit turns Allows operation of in...

Page 91: ...of indoor unit from outdoor unit Indoor unit forced operation 5 S Frequency fix Normal operation Fixes the frequency of the inverter compressor 5HP 68Hz 8 10HP 86Hz ON Frequency fix 6 S Address 0 Binary number 1 6 digits 2 31 Address for cool heat group operation Cool heat group address 2 S S S S Address 0 Binary number 1 6 digits 2 63 Airnet address Not used 10 S S S S Address 0 Binary number 1 6...

Page 92: ...ressure for cooling High Normal factory set Low Defrost temperature setting for defrost Quick defrost Normal factory set Slow defrost EMG emergency operation when malfunction occurs ON OF Push the SET button and match with the LEDs No 1 15 push the RETURN button and enter the data for each setting Data such as addresses and number of units is expressed as binary numbers the two ways of expressing ...

Page 93: ...boxes 0 63 units Lower 6 digits No 7 ýOýOýOý Number of connected zone units excluding outdoor and HR boxes 0 63 units Lower 6 digits No 8 ýOýOý ýOýOýO Number of outdoor units 0 63 units Lower 6 digits No 9 ýOýOý ýOýOý Number of HR boxes 0 128 units Lower 4 digits upper No 10 ýOýOý ýOý ýO Number of HR boxes 0 128 units Lower 4 digits lower No 11 ýOýOý ýOý Number of zone units excluding outdoor and ...

Page 94: ...nd whether or not to use low noise operation and sequential start H1P off Setting mode 2 Mode for changing operating status and setting addresses used primarily for service H1P on Monitor mode Mode for checking setting made in the setting modes number of connected units etc H1P flickers Push the MODE button Push the MODE button Push the SET button Push and hold the MODE button for 5 sec Push the M...

Page 95: ...sequential start MODE TEST C H SELECT L N O P SEQ HWL START H1P H2P H3P H4P H5P H6P H7P SET MODE TEST L N O P SEQ HWL START H1P H2P H3P H4P H5P H6P H7P SET MODE TEST L N O P SEQ HWL START H1P H2P H3P H4P H5P H6P H7P MODE TEST L N O P SEQ HWL START H1P H2P H3P H4P H5P H6P H7P SET SET MODE TEST L N O P SEQ HWL START H1P H2P H3P H4P H5P H6P H7P MODE TEST L N O P SEQ HWL START H1P H2P H3P H4P H5P H6P ...

Page 96: ...ms Note 1 Simultaneous cooling heating operation is not possible by Emergency operation 1 2 3 4 5 6 7 8 9 Setting item EMG 1 Low noise demand address Forced fan switch Indoor unit forced operation Frequency fix Te setting Tc setting Defrost setting Not used Description Emergency operation when malfunction occurs Address for low noise demand group operation Fan of stopped indoor unit turns Allows o...

Page 97: ...n of stopped indoor unit turns Forced fan switch 3 S Forced fan operation H tap Normal operation Allows operation of indoor unit from outdoor unit Indoor unit forced operation 4 S Frequency fix Normal operation Fixes the frequency of the inverter compressor Frequency fix 5 S S S S Address 0 Binary number 1 6 digits 2 63 Airnet address Not used 9 S S S S Address 0 Binary number 1 6 digits 2 31 Addr...

Page 98: ...ure for cooling High Normal factory set Low Defrost temperature setting for defrost Quick defrost Normal factory set Slow defrost EMG emergency operation when malfunction occurs ON OF Push the SET button and match with the LEDs No 1 15 push the RETURN button and enter the data for each setting Data such as addresses and number of units is expressed as binary numbers the two ways of expressing are ...

Page 99: ...s No 6 ýOýOýOý Number of connected zone units excluding outdoor and HR boxes 0 63 units Lower 6 digits No 7 ýOýOý ýOýOýO Number of outdoor units 0 63 units Lower 6 digits No 8 ýOýOý ýOýOý Number of HR boxes 0 128 units Lower 4 digits upper No 9 ýOýOý ýOý ýO Number of HR boxes 0 128 units Lower 4 digits lower No 10 ýOýOý ýOý Number of zone units excluding outdoor and HR boxes 0 63 units Lower 6 dig...

Page 100: ...upply You should however connect an outdoor unit of small capacity as the third unit in the sequence Method of Sequential Start 1 Power supply wiring Must be wired as a group to the power supply 2 Wiring Connect transmission wiring to terminals F1 and F2 outdoor outdoor on the outdoor unit PC board A1P Switch to the monitoring mode and see if sequential start has been selected If not switch to set...

Page 101: ...ot using cool heat central remote controller LED remains off 3 Function switch SS1 Factory set BOTH Sets whether the address setting switch will set cool heat address demand low noise address or both 4 Cool heat central remote controller selection switch SS2 Factory set No Sets whether cool heat central remote controller is connected or not 5 Address setting switch DS2 DS1 Factory set 0 Sets cool ...

Page 102: ... Using R 22 81 System Examples Group selection of cool heat mode by indoor unit remote controller Switch Settings on the Adaptor PCB SS1 SS2 DS1 DS2 BOTH C H DE FUNCTION BOTH BOTH C H DE FUNCTION C H OR VL021 CENTRAL C H SELECTOR OFF ON OFF VL022 DS2 DS1 Address 0 VL023 ...

Page 103: ...tings Group master unit SS1 IN D UNIT Setting mode 1 C H SELECT MASTER Setting mode 2 Cool heat group address 0 Combines DS1 and DS2 of PC board adaptor Group slave unit SS1 IN D UNIT or OUT D UNIT Setting mode 1 C H SELECT SLAVE Setting mode 2 Cool heat group address 0 Combines DS1 and DS2 of adaptor PCB ...

Page 104: ...unit to HR boxes or indoor units connected in a UM net you can simultaneously select cool heat mode for several outdoor units in the system and it enables demand control and low noise control Part names and functions Note 1 SS2 is not applicable to cooling only system 1 8 1 Cool heat mode unified selection For detailed example of wiring see the page describing cool heat mode control System outline...

Page 105: ... by cool heat central remote controller Switch settings on adaptor printed circuit board SS1 BOTH is selected when demand control is carried out at the same time SS2 DS1 2 BOTH C H DE C H SL302 OFF ON OFF SL303 SS1 When demand control is used together set the switch to BOTH SS2 DS1 2 For individual control do not use the same address twice BOTH C H DE Cool SL305 OFF ON ON SL306 ...

Page 106: ...on Low noise control Outdoor unit Running noise can be reduced by 2 3dB by controlling capacity of outdoor unit System general When each system is set to the same address the same demand control operation is conducted Common Address setting DS1 DS2 Decide the address for each control unit from 0 9 and set Notes Setting is within 8 groups when using a cool heat central remote controller Set from No...

Page 107: ... cord or cable 0 75 1 25 mm double core Wiring length Max 150 m Run separate from power line in order to prevent malfunction Installation positions Model series Installation box plate Installation position Outdoor unit Function unit Not necessary Inside main unit s electric box Indoor unit CS UM KRP1B98 Regarding installation position see the page describing the remote group control adaptor CS LM ...

Page 108: ...oup in accordance with group master outdoor unit by indoor unit remote controller 4 Setting of cool heat by outdoor unit system group in accordance with group master outdoor unit by cool heat selector Each of these setting methods is explained in detail below For 3 and 4 be sure to perform power supply reset after changing settings 1 9 1 Setting of Cool Heat by Individual Outdoor Unit System by In...

Page 109: ... Using R 22 1 9 2 Setting of Cool Heat by Individual Outdoor Unit System by Cool Heat Selector Doesn t matter whether or not there is outdoor outdoor unit wiring Set SS1 of the outdoor unit PC board to OUT D UNIT In setting mode 1 set cool heat selection to IND factory set ...

Page 110: ...to IN D UNIT factory set In setting mode 1 set the outdoor unit you want to give cool heat selection permission to as the group master and set the other outdoor units as group slave units Set SS1 of the BMS interface adaptor for outdoor unit to BOTH factory set or C H Set SS2 to OFF factory set 1 9 4 Setting of Cool Heat by Outdoor Unit System Group in Accordance with Group Master Outdoor Unit by ...

Page 111: ...ode 2 Adaptor PCB No 0 Outdoor unit group master No 0 Outdoor unit group slave No 0 Outdoor unit group slave No 0 Cool heat group address llllll DS2 DS1 Adaptor PCB No 1 Outdoor unit group master No 1 Outdoor unit group slave No 1 Cool heat group address lllll DS2 DS1 Adaptor PCB No 2 Outdoor unit group master No 2 Outdoor unit group slave No 2 Outdoor unit group slave No 2 Cool heat group address...

Page 112: ...PACD011001C2 Test Operation Test Operation Urban Multi MX1 ME1 Series Using R 22 91 Setting Method 1 9 3 and 1 9 4 address setting method combine lower 5 digits as binary number ...

Page 113: ...box systems using the indoor unit remote controller 2 Set cool heat individually for all HR box systems using the cool heat select remote controller 3 Set cool heat individually for all HR box systems using the cool heat central remote controller 1 10 1 Set cool heat individually for all HR box systems using the indoor unit remote controller 1 10 2 Set cool heat individually for all HR box systems...

Page 114: ...tion Test Operation Urban Multi MX1 ME1 Series Using R 22 93 1 10 3 Set cool heat individually for all HR box systems using the cool heat central remote controller Install the BMS interface adaptor for outdoor unit in HR box ...

Page 115: ...out in accordance with contact input received from the adaptor in each zone Outdoor unit address setting Setting mode 2 see page 69 BMS interface adaptor for outdoor unit address setting Decide and set demand address 0 31 for each demand and low noise control zone See fig below Set SS1 to BOTH factory set or C H F1 F2 Demand address llllll F1 F2 BMS interface adaptor for outdoor unit F1 F2 F1 F2 D...

Page 116: ...prox 70 Short circuit between Demand 2 and C Holds demand down to approx 40 Short circuit between Demand 3 and C Forced OFF by thermostat L N O jumper Carries out low noise operation Input Signal Input current by constant contact is about 10 mA per contact Use a micro current contact for the relay contact Exterior wiring specifications for demand and low noise operation Recommended wiring Sheathed...

Page 117: ... Outdoor unit field setting Setting mode 1 Set low noise operation to ON Setting mode 2 Match low noise operation and demand control address with address of BMS interface adaptor for outdoor unit 2 BMS interface adaptor for outdoor unit setting Function switch SS1 Set to BOTH or DE Address setting switches DS1 DS2 Match with outdoor unit low noise operation and demand control address 3 Short circu...

Page 118: ...s for demand control operation 1 Outdoor unit field setting 2 BMS interface adaptor for outdoor unit setting Function switch SS1 Set to BOTH or DE Address setting switches DS1 DS2 Match with outdoor unit low noise operation and demand control address 3 Select one from demand input terminals 1 through 3 on the BMS interface adaptor for outdoor unit and short the corresponding terminals 1 Demand 1 S...

Page 119: ...to perform wiring check operation While running TEST H2P lights and goes off when finished If TEST H2P flickers wiring check operation failure push and hold the RESET button BS5 for 5 seconds and then repeat the procedure from the beginning 3 About 1 minute after you finish running the system once again check the number of connected indoor units in the monitor mode and make sure the number agrees ...

Page 120: ...CS LM 1 Service Monitor HAP Green Lets you check the function status of the microcomputer Normal Flicker Malfunction On or Off 2 Transmission wiring terminal Terminal for remote controller wiring indoor outdoor unit transmission wiring central wiring and wiring for outside input Remote controller Transmission wiring Outside input P1 P2 F1 F2 T1 T2 3 Connector for capacity setting adaptor Connector...

Page 121: ...d in digital display and can be set in 1 C increments Display of malfunction is also available for air cleaner units Operation can be individually programmed to start and stop time up to 72 hours in advance The remote controller is equipped with a thermostat sensor to realize better room temperature control Room temperature and preset temperature are monitored by microcomputer and cool heat operat...

Page 122: ...by 2 remote controllers By connecting two remote controllers to a single indoor unit you can for instance freely control from both in the room and from the control room individual control not to mention that you can carry out group control with two remote controllers Electrical appendices Remote controller wiring can be extended up to 500 meters and you can easily make a central control setup in o...

Page 123: ...ised control Push to start and stop the timer Displayed when under centralised control 6 Timer ON OFF button 18 ON OFF button Push to turn the timer on or off One push starts the system and a second push stops the system again 7 Inspection test operation button 19 Operation lamp Red Push for inspection or test operation Lights during operation 8 Programming time button 20 Display changeover under ...

Page 124: ...R 22 103 1 16 1 Applicable Wireless Remote Controller Models Part Names and Functions Type CS LM CS DM CS UM CS FM CS TM CS KM CS PM CS RM CS EM CS NM Wireless remote controller H P CZ 01RWL12P CZ 02RWD12P CZ 01RWU12P CZ 02RWF12P CZ 01RWT12P CZ 01RWK12P CZ 02RWF12P CZ 02RWF12P ...

Page 125: ...Test Operation PACD011001C2 104 Test Operation Urban Multi MX1 ME1 Series Using R 22 ...

Page 126: ...ches during changeover under control Air flow direction setting The air flow direction is set by adjusting with the air flow direction adjustment button while viewing setting position in the liquid crystal display The air flow direction is set by adjusting with the air flow direction adjustment button while viewing the position of the louver Filter sign reset Resets the filter and element cleaning...

Page 127: ...ontrol for indoor units is last command priority Remove the remote controllers front panels and set the MASTER SLAVE switch on the remote controller s built in PC board to MASTER for the master remote controller and SLAVE for the slave remote controller Field setting can be made only for the master remote controller Group Control Up to 16 indoor units are simultaneously controlled as a group with ...

Page 128: ...n the table above 3 Forced OFF and ON OFF control selection Switch input by remote controller after turning on the power supply Set field setting mode with the remote controller When you enter the field setting mode select mode No 12 and set the first code No to 1 for forced OFF set the second code No to 01 and from ON OFF control set to 02 Factory set is forced OFF Wiring specifications Sheathed ...

Page 129: ... a group 4 Push the button and select the first code No 5 Push the button and select the second code No 6 Push the timer button one time and define the currently set contents 7 Push the button to return to the normal mode 1 18 2 Wireless Remote Controller CZ 01 02RW Type 1 When in the normal mode push the button for 4 seconds or more and operation then enters the field set mode 2 Select the desire...

Page 130: ...Operation output Malfunctionoutput 1 ON OFF input from outside Set when ON OFF is to be controlled from outside Forced OFF ON OFF control External protection device 2 Thermostat differential changeover Set when remote sensor is to be used CS LM CS UM CS DM CS TM only 1 C 0 5 C 3 OFF by thermostat fan speed LL Set fan speed 4 Automatic mode differential automatic temperature differential setting fo...

Page 131: ...ton 3 Push the timer button to inspect the group No display 4 Set the group No for each group with the button The group No increases in the manner of 1 00 1 01 1 15 2 00 4 15 However the unified ON OFF controller displays only the group No within the range selected by the switch for setting each address 5 Push the timer button to define the selected group No 6 Push the button to return to the norm...

Page 132: ...sh the button for 4 seconds or more and operation then enters the field set mode 2 Set mode No 00 with the button 3 Set the group No for each group with the button advance backward 4 Enter the selected group numbers by pushing the button 5 Push the button and return to the normal mode Group No Setting Example If you have to set the address for each unit for calculating cost etc set the mode No to ...

Page 133: ... Setting of master remote controller Operation mode selection 1 Set the outdoor unit s cool heat selector Filed setting mode1 to inside 2 Continue pushing OPERATION MODE SELECTOR for about 4 seconds The display of CHANGEOVER UNDER CONTROL on all remote controllers connected to the same outdoor unit blinks 3 Push the OPERATION MODE SELECTOR of the remote controller you want to set as the master rem...

Page 134: ...rollers Remote controllers displaying CHANGEOVER UNDER CONTROL 1 to COOL HEAT l switch to the operation mode set by the master remote controller l However they can switch to FAN operation and from COOL to If you set a Master remote controller Remote controller not displaying CHANGEOVER UNDER CONTROL The other remote controllers Remote controllers displaying CHANGEOVER UNDER CONTROL 2 to FAN l cann...

Page 135: ...ted within one control wiring system Central remote controller Model No CZ 01ESM11P Appearance No of units that can be connected within one control wiring system Up to 2 Unified ON OFF controller Model No CZ 01ANA11P Appearance No of units that can be connected within one control wiring system Up to 8 Schedule timer Model No CZ 01ESW11P Appearance No of units that can be connected within one contr...

Page 136: ...rol is not required to increase the number of units that can be connected within the system When double remote controllers are connected the same indoor unit cannot be registered for more than one central remote controller Up to 2 central remote controllers can be connected per system Up to 8 unified ON OFF controllers can be connected per system Only 1 schedule timer can be connected per system ...

Page 137: ...ol system in accordance with scale and use Wiring can be extended up to 1 km Besides crossover wiring bus or star type can also be used 1 22 1 System Configuration With a central remote controller you can simultaneously turn up to 64 groups of indoor units on or off up to 128 units You can also turn on or off set operation and control modes such as operation controlled by timer make operation by r...

Page 138: ...ontrol by Central Remote Controller A zone is a collection of 1 or more groups Zone control lets you make settings for several groups simultaneously in order to facilitate the task of setting By setting once everything in the zone becomes set to the same setting The number of zones that can be set by the central remote controller is MINI MAX 64 zones The number of groups in 1 zone is MINI MAX 64 g...

Page 139: ...N OFF control impossible by remote controller centralised individual etc in code If there is an indoor unit stopped due to malfunction the display indicates that unit s unit No 5 Group No in operation 14 Unified stop button Each square displays the state corresponding to each group Stops all indoor units 6 Display preset temperature 15 Unified operation button Displays the preset temperature Runs ...

Page 140: ...t Sets to operation mode 4 Zone group changeover button 12 Timer ON button Selects zone or group display Defines control mode and timer No 5 Advance backward button 13 Control mode button Sets zone with several groups Selects the control mode 6 ON OFF button 14 Timer No button Runs or stops for each zone Selects timer No Only when used in combination with a schedule timer 7 Temperature setting but...

Page 141: ...ring can be branched in max 16 locations Example showing 3 branches 3 Star wiring can be branched in max 16 locations Example showing 3 branches Notes 1 Cannot be branched again after being branched once 2 Use a junction terminal block if branching 3 or more control wires from the same terminal block 3 Do not connect transmission wiring between indoor and outdoor units of different refrigerant cir...

Page 142: ...mote controller can be set and displayed by operation modes 0 through 19 ON OFF control impossible by remote controller Used when you want to turn on off by central remote controller only Cannot be turned on off by remote controller OFF control only possible by remote controller Used when you want to turn on by central remote controller only and off by remote controller only Centralised Used when ...

Page 143: ...ol mode Control by remote controller Control mode Operation OFF Temperature control Operation mode setting Unified operation individual operation by central remote controller or operation controlled by timer Unified OFF individual stop by central remote controller or timer stop ON OFF control impossible by remote controller Rejection Example Rejection Example Rejection Example Rejection Acceptance...

Page 144: ...roller or schedule timer you can build a system that matches scale and use Features compact size casing with thickness of only 16 mm Uses JIS recessed box for 2 Wiring can be extended up to 1 km For the wiring method bus type and star type wiring crossover wiring can be used as well as crossover wiring 1 23 1 System Configuration Up to 16 groups of indoor units can be turned on off individually or...

Page 145: ...mote controllers 3 Max 16 indoor units group controlled by either 1 or 2 remote controllers 1 23 2 Wiring for Transmission Wiring Outline Wiring specifications Connection Example of Wiring for Transmission 1 series wiring 2 bus type wiring and 3 star type wiring are the same as with a central remote controller Power supply wiring 2 mm Wiring for transmission 0 75 1 25 mm sheathed vinyl cord or cab...

Page 146: ...n the figure below There is no polarity so it doesn t matter if F1 and F2 are inverted 1 Forced OFF input T1 T2 All connected indoor units go off and do not run while forced OFF input for no voltage contact micro current is closed Use a contact that can guarantee a 16 VDC 10 mA minimum applicable load Note If using an instantaneous contactor use one that handles conducting time of 200 msec or more...

Page 147: ...ght weekly schedule patterns and distribute among zones by central remote controller as desired Equipped with a power failure compensation function effective for up to 48 hours Features compact size casing with thickness of only 16 mm Uses JIS recessed box for 2 Wiring can be extended up to 1 km For the wiring method bus type and star type wiring crossover wiring can be used as well as crossover w...

Page 148: ... connector on the indoor unit s PC board CN18 with the attached cable and crimp style terminals 2 If using in combination with other optional controllers for centralised control Wiring for transmission 0 75 1 25 mm sheathed vinyl cord or cable double core Max extension 1000 m Total wiring length 2000 m Connection example of wiring for transmission 1 series wiring 2 bus type wiring and 3 star type ...

Page 149: ...mmed time of system off Displays malfunction code Displays the time when the system is programmed to go off 3 Display of holiday 9 Unified stop button Displays day designated as a holiday inside a circle The system is not programmed to turn on for days designated as a holiday Push to stop simultaneously without regard for the No of programmed time 4 Display of days of a week 10 Unified operation b...

Page 150: ...r minute button Push when selecting days of a week Push to adjust the present time or programmed time 3 Holiday setting button 8 Programming start button Sets holiday Push to set or check No of programmed time After completion push again 4 Button for copying programs of previous day 9 Clock adjusting button Sets to same No of programmed time as previous day Push to set the present time 5 Program c...

Page 151: ...ed ON OFF controllers are connected in accordance with the number of indoor units A single line network can contain up to 16 groups of four units each Central remote controller plus unified ON OFF controller Combines the functionality of a central remote controller with the operability of a unified ON OFF controller Enables central control of up to 64 groups of indoor units Schedule timer plus cen...

Page 152: ...ntrol You can use any combination of two central remote controller one schedule timer and from one to eight unified ON OFF controllers The maximum number of units for a single system is 128 Central remote controller CZ 01ESM11P Unified ON OFF remote controller CZ 01ANA11P Schedule timer CZ 01ESW11P 2 2 1 2 2 8 2 1 2 1 1 2 2 8 1 1 2 8 1 1 2 8 1 1 ...

Page 153: ...t Operation PACD011001C2 132 Test Operation Urban Multi MX1 ME1 Series Using R 22 1 25 3 Electric Wiring Combination of one central remote controller one schedule timer and three unified ON OFF controllers ...

Page 154: ...ON OFF controller Control mode switch DS2 Sets priority sequence for control of central remote controller and indoor unit remote controllers If used together with a central remote controller however the central remote controller s control mode has priority 3 Schedule timer Leave the connector for setting master controller X1A disconnected Factory set Control mode switch SS2 Sets priority sequence ...

Page 155: ...Test Operation PACD011001C2 134 Test Operation Urban Multi MX1 ME1 Series Using R 22 ...

Page 156: ...Determination Device 163 3 9 Indoor Unit Malfunction of Thermistor R2T for Liquid Pipe 164 3 10 Indoor Unit Malfunction of Thermistor R3T for Gas Pipes 165 3 11 Indoor Unit Malfunction of Thermistor R1T for Air Inlet 166 3 12 Indoor Unit Malfunction of Thermostat Sensor in Remote Controller 167 3 13 Outdoor Unit Actuation of Safety Device 168 3 14 Outdoor Unit PC Board Defect 169 3 15 Outdoor Unit...

Page 157: ...or Unit Malfunction of Transmission between Inverter and Control PC Board 198 5 6 Power Supply Insufficient or Instantaneous Failure 199 5 7 Outdoor Unit Inverter Over Ripple Protection 200 5 8 Outdoor Unit Malfunction of Inverter Radiating Fin Temperature Rise Sensor 201 6 Troubleshooting OP Central Remote Controller 202 6 1 Malfunction of Transmission between Central Remote Controller and Indoor...

Page 158: ...er M1S OFF Drain up kit M1P OFF Electronic expansion valve Y1E Closed Optional auxiliary electric heater 52H OFF Depress reset Operation ON OFF switch Operation display lamp ON Air flow rate setting display ON Air flow direction setting display ON Temperature setting display ON Indicates previous settings for air flow rate and direction and temperature NO ON OFF YES NO Option YES Fan Ventilation T...

Page 159: ... flow Drain up kit M1P OFF after 5 minutes residual operation Frost prevention operation in progress Test run in progress Thermostat status Drain up kit Y1E ON OFF Drain up kit M1P OFF after 5 minutes residual operation Electronic expansion valve Y1E OFF Thermostat on operation signal to outdoor unit Cancelled Electronic expansion valve Y1E Capacity control Thermostat ON operation signal to outdoo...

Page 160: ...rature during programmed dry operation Fan in operation Swing flap Air flow direction setting Swing flap Fan MF Operating at set air flow rate Electronic expansion valve Y1E closed Drain up kit M1P OFF Auxiliary electric heater 52H OFF Humidifier Hu OFF Electric dust collector ON A 10 11 9 NO YES Option VF024 9 Fan operation When fan operation has been selected using the remote controller operatio...

Page 161: ...y electric heater 52H ON Humidifier Hu ON Fan M1F Operating at set air flow volume Fan M1F L operation Fan M1F OFF Electronic expansion valve Y1E capacity contorol Electronic expansion valve Y1E closed Electronic expansion valve Y1E open Auxiliary electric heater 52H OFF Humidifier Hu OFF NO NO NO YES YES NO YES YES YES 13 12 14 15 12 NO Low discharge air temperature protection YES NO Option Optio...

Page 162: ...shooting Urban Multi MX1 ME1 Series Using R 22 141 14 Thermostat status 15 Low discharge air temperature protection Protection is effected when the preset temperature is 24 C or lower and the opening of the electronic expansion valve is slight ...

Page 163: ...verter compressor magnetic contactor K1M OFF Output frequency to inverter INV 0 Hz Standard compressor magnetic contactor K2M Closed Electronic expansion valve Y1E OFF Solenoid valve hot gas Y2S OFF Solenoid valve injection Y3S Y4S OFF Solenoid valve pressure equalizing bypass ON or OFF 4 way valve Y1R On during heating operation off during cooling or fan operation VF026 16 If the outdoor unit mal...

Page 164: ... Fan 30 116 Hz by PI control 20 ON OFF by PI control OFF H ON 30 116 Hz OFF ON OFF by saturation temperature corresponding to suction pressure 22 ON 30 116 Hz by PI and protective control ON OFF by PI and protective control Open 38 Hz ON 42 Hz OFF ON ON Cooling operation Start control in progress Oil equalization in progress Compressor protection operation in progress Low temperature protection op...

Page 165: ...PI control 24 ON OFF by PI control OFF Heating operation Start control in progress Defrosting operation in progress Oil equalization in progress Compressor protection operation in progress VF028 K1M INV K2M Y1E Y2S Y3S Y4S Y1R M1F M2F ON OFF by discharge temperature protection control ON 18 Start control 60 second start control in order to prevent liquid back to the compressor 19 Compressor protec...

Page 166: ... When Tc becomes greater than 52 4 C fan speed returns to H ON 23 Compressor protection 1 Protection control is triggered when secondary inverter current exceeds set current 2 Protection control is triggered by discharge temperature 3 Protection control is triggered when the heating load is small and the saturation temperature corresponding to suction pressure is high 4 Protection control is trigg...

Page 167: ...nspection Test Operation button for more than 4 seconds Press Inspection Test Operation button once Press Inspection Test Operation button once Or after 30 minutes After 10 seconds Press Inspection Test Operation button once Press Inspection Test Operation button once Indoor unit settings can be made Filter sign time Air flow direction Others Following codes can be checked Malfunction codes Indoor...

Page 168: ...peration stops due to malfunction the remote controller s operation LED blinks and malfunction code is displayed Even if stop operation is carried out malfunction contents are displayed when the inspection mode is entered The malfunction code enables you to tell what kind of malfunction caused operation to stop See page 154 for malfunction code and malfunction contents ...

Page 169: ...t beeps Conduct all of the following operations 1 short beep Conduct steps 3 and 4 Continue the operation in step 4 until a buzzer remains ON The continuous buzzer indicates that the malfunction code is confirmed Continuous beep No abnormality 3 Press the MODE selector button The left 0 upper digit indication of the malfunction code flashes 4 Malfunction code upper digit diagnosis Press the UP or ...

Page 170: ...PACD011001C2 Troubleshooting by Remote Controller Troubleshooting Urban Multi MX1 ME1 Series Using R 22 149 The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed ...

Page 171: ...Troubleshooting by Remote Controller PACD011001C2 150 Troubleshooting Urban Multi MX1 ME1 Series Using R 22 ...

Page 172: ...type code Model CS KM CS LM CS DM CS UM CS TM CS FM CS PM CS EM Type UM Inverter MX1 Series UM Combination MA1R Series Using R407C Display A A 1 A A 3 Outdoor model code Model CU MX PA MA Unit Malfunction code Inspection Normal display No display 0 L 0 Malfunction code blinks when a malfunction occurs Unit Malfunction code Inspection Inspection mode Push the button Inspection test operation Push t...

Page 173: ...t the unit No For group control only Select the indoor unit No to be set with the time mode For wireless remote controller button 3 Make the settings required for each mode Modes 41 44 45 In case of Mode 44 45 push the timer button to be able to change setting before setting work LCD code blinks For details refer to the table in next page 4 Define the setting contents Modes 44 45 Define by pushing...

Page 174: ...an ON by each unit When you want to search for the unit No By selecting the unit No with the button you can turn the fan of each indoor unit on forced ON individually 44 Individual setting Set the fan speed and air flow direction by each unit Select the unit No with the time mode button Set the fan speed with the button Set the air flow direction with the button 45 Unit No transfer Transfer unit N...

Page 175: ...filter maintenance AJ 9 9 9 Malfunction of capacity determination device 163 C4 9 9 9 Malfunction of thermistor R2T for liquid pipe loose connection disconnection short circuit failure 164 C5 9 9 9 Malfunction of thermistor R3T for gas pipes loose connection disconnection short circuit failure 165 C9 9 9 9 Malfunction of thermistor R1T for air inlet loose connection disconnection short circuit fai...

Page 176: ...een remote controller and indoor unit 184 U5 7 8 7 Failure of remote controller PC board or setting during control by remote controller U7 9 9 9 Malfunction of transmission between indoor units Malfunction of transmission between outdoor units malfunction of transmission between outdoor unit and ice build up heat unit U7 8 7 9 Malfunction of transmission between outdoor units cool heat unified low...

Page 177: ...rd Troubleshooting VF029 Indoor unit PC board replacement Actuation of external protection device Change the second code No to 01 or 02 External protection device is connected to terminals T1 and T2 of the indoor unit terminal block ON OFF input from outside mode No 12 first code No 1 has been set to external protection device input second code No 03 by remote controller YES NO NO YES Caution Be s...

Page 178: ...ing Troubleshooting Urban Multi MX1 ME1 Series Using R 22 157 3 2 Indoor Unit PC Board Defect Remote Controller Display A1 A1 A1 A1 Supposed Causes Defect of indoor unit PC board Troubleshooting Replace the indoor unit PC board ...

Page 179: ...r or float switch and turn on again YES YES YES YES Defect of indoor unit PC board Loose connection of connector NO NO NO YES YES NO NO YES NO YES NO NO The float switch is connected to X18A of the indoor unit PC board NO The drain pump works when the power supply is reset for the indoor unit The drain pump is connected to X25A or terminals X8S and X9S of the indoor unit PC board The voltage of te...

Page 180: ...oubleshooting Connect the wiring and turn on again Fix the wiring and turn on again YES NO NO NO YES YES Replace the indoor unit PC board Replace the fan motor Is the wiring from the fan motor securely connected to X4A and X5A on the indoor unit PC board Wiring between the indoor unit PC board and fan motor is disconnected Does the fan motor run VF031 Caution Be sure to turn off power switch befor...

Page 181: ...t PC board NO NO YES NO YES NO YES YES NO Indoor unit is a model equipped with a swing flap function The swing motor works when the power supply is turned off and then back on When the air flow direction flap s cam mechanism is disconnected from the swing motor operation is normal when turned on again The connecting cable has no continuity After turning the swing flap ON and then stopping with the...

Page 182: ...nnecting turn the power supply off and then back on Replace the moving part of the electronic expansion valve YES YES NO NO Replace the connecting cable If you turn the power supply off and turn on again and it still does not help replace the indoor unit PC board NO YES The electronic expansion valve is connected to X7A of the indoor unit PC board Normal when coil check 1 of the moving part of the...

Page 183: ...t of drain pipe upward slope etc Defect of indoor unit PC board Troubleshooting Defect of indoor unit PC board Modify the drain piping YES YES Check if the humidifier unit is leaking NO NO Field drain piping has a defect such as upward sloping A humidifier unit optional accessory is installed on the indoor unit VF034 Caution Be sure to turn off power switch before connect or disconnect connector o...

Page 184: ...or Defect of indoor unit PC board Troubleshooting VF035 Install a capacity setting adaptor Replace the indoor unit PC board NO NO YES YES Replace the indoor unit PC board The indoor unit PC board was replaced with a replacement PC board The indoor unit is a model that requires installation of a capacity setting adaptor when replacing the PC board Caution Be sure to turn off power switch before con...

Page 185: ...ct of indoor unit PC board Troubleshooting VF036 Replace the indoor unit PC board Connect the thermistor and turn on again NO NO Replace the thermistor R2T YES YES Connector is connected to X12A of the indoor unit PC board Resistance is normal when measured after disconnecting the thermistor R2T from the indoor unit PC board 3 5kΩ 360kΩ Caution Be sure to turn off power switch before connect or di...

Page 186: ...Defect of indoor unit PC board Troubleshooting VF037 Replace the indoor unit PC board Connect the thermistor and turn on again NO NO Replace the thermistor R3T YES YES Connector is connected to X11A of the indoor unit PC board Resistance is normal when measured after disconnecting the thermistor R3T from the indoor unit PC board 0 6kΩ 360kΩ Caution Be sure to turn off power switch before connect o...

Page 187: ...Defect of indoor unit PC board Troubleshooting Replace the indoor unit PC board Connect the thermistor and turn on again NO NO Replace the thermistor R1T YES YES Connector is connected to X13A of the indoor unit PC board Resistance is normal when measured after disconnecting the thermistor R1T from the indoor unit PC board 7 2kΩ 112kΩ VF038 Caution Be sure to turn off power switch before connect o...

Page 188: ...ses Defect of remote controller thermistor Defect of remote controller PC board Troubleshooting Turn power supply OFF then power ON again Is CJ displayed on the remote controller YES Replace remote controller External factor other than equipment malfunction for example noise etc VF039 NO Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred...

Page 189: ...Defect of capacitor etc VF040 Connector or terminal is connected to X8A X9A of the outdoor unit PC board A1P and X1S X2S Contacts F2C X1S X2S are open Connect the connector or terminal and turn on again Actuation of magnet switch OC for standard compressor 1 Actuation of fan motor safety thermostat 2 YES NO NO YES Contact Q1M X8A or Q2M X9A is open NO YES Operation is normal when turned on again b...

Page 190: ...Troubleshooting Urban Multi MX1 ME1 Series Using R 22 169 3 14 Outdoor Unit PC Board Defect Remote Controller Display E1 E1 E1 E1 Supposed Causes Defect of outdoor unit PC board A1P Troubleshooting Replace outdoor unit PC board A1P ...

Page 191: ...HPS The outdoor unit PC board s connector is disconnected Is the outdoor unit heat exchanger dirty Defect of outdoor fan Is the refrigerant over charged Operation is normal when turned on again by remote controller Replace outdoor unit PC board A1P Actuation of high pressure switch 1 YES YES There was an instantaneous power failure or a past safety device actuated Re check refrigerant system NO NO...

Page 192: ...point 2 Refer to pressure sensor pressure voltage characteristics table on P587 VF042 Low pressure at stop due to malfunction is 0 0 kg cm2 Measure the voltage VL of X21A pin No 2 3 of outdoor PC board A1P 1 Is the relationship between low voltage and VL normal Refrigerant shortage refrigerant system clogging wiring and piping wrong connection Replace the low pressure sensor Replace outdoor unit P...

Page 193: ...nuity Approx 300Ω Continuity Approx 150Ω No continuity Note MX1 Series X12A ME1 Series X14A X15A VF043 Electronic expansion valve is connected to X12A or X14A X15A of outdoor unit PC board A1P Normal when coil check 1 of the moving part of the electronic expansion valve is checked The connecting cable is short circuited or disconnected Replace the connecting cable Replace outdoor unit PC board A1P...

Page 194: ...s there a wrong connection of the injection solenoid valves Y3S and Y4S Is there a wrong connection of the discharge pipe thermistor R3T or R3 1T inverter side R3 2T standard side Are the characteristics of the discharge pipe thermistor normal R3T or R3 1T R3 2T For the characteristics table Replace outdoor unit PC board A1P Connect correctly and turn on again Replace the discharge pipe thermistor...

Page 195: ...oard A1P Troubleshooting The alarm indicator is displayed when the fan is being used also VF045 Resistance is normal when measured after disconnecting the thermistor R1T from the outdoor unit PC board 3 5kΩ 360kΩ Connector is connected to X20A of outdoor PC board A1P Replace outdoor unit PC board A1P Connect the thermistor and turn on again NO NO Replace the thermistor R1T YES YES Caution Be sure ...

Page 196: ... when the fan is being used also Note VF046 Resistance is normal when measured after disconnecting the thermistor R3T or R3 1T R3 2T from the indoor unit PC board 3 5kΩ 400kΩ Replace outdoor unit PC board A1P Connect the thermistor and turn on again NO NO Replace the thermistor R3T or R3 1T R3 2T YES YES Connector is connected to X17A 18 or X16A 17 of outdoor unit PC board A1P Caution Be sure to t...

Page 197: ...s displayed when the fan is being used also Note MX1 Series R4T X16A ME1 Series R4 1T X14A R4 2T X15A VF047 Resistance is normal when measured after disconnecting the thermistor R4T or R4 1T R4 2T from the indoor unit PC board 3 5kΩ 360kΩ Replace outdoor unit PC board A1P Connect the thermistor and turn on again NO NO Replace the thermistor R4T or R4 1T R4 2T YES YES Connector is connected to X16A...

Page 198: ...splayed when the fan is being used also Note MX1 Series R2T X19A ME1 Series R2 1T X18A R2 2T X19A VF048 Resistance is normal when measured after disconnecting the thermistor R2T or R2 1T R2 2T from the indoor unit PC board 3 5kΩ 360kΩ Replace outdoor unit PC board A1P Connect the thermistor and turn on again NO NO Replace the thermistor R2T or R2 1T R2 2T YES YES Connector is connected to X19A or ...

Page 199: ...ment point 2 Refer to pressure sensor pressure voltage characteristics table on P587 VF049 The relationship between the VH and high pressure is normal see 2 when voltage is measured between X22A pins 1 and 3 of outdoor unit PC board A1P see 1 Replace the high pressure sensor Connect the high pressure sensor and turn on again NO NO Replace outdoor unit PC board A1P YES YES The high pressure sensor ...

Page 200: ...easurement point 2 Refer to pressure sensor pressure voltage characteristics table on P587 VF050 The relationship between the VH and low pressure is normal see 2 when voltage is measured between X21A pins 2 and 3 of outdoor unit PC board A1P see 1 Replace the low pressure sensor Connect low pressure sensor and restart NO NO Replace outdoor unit PC board A1P YES YES The low pressure sensor is conne...

Page 201: ...1P Troubleshooting Note MX1 Series R5T X15A ME1 Series R5T X13A VF051 Is the connector is connected to X15A or X13A of the outdoor PC board A1P Resistance is normal when measured with thermistor R5T disconnected from the outdoor unit PC board 0 6 kΩ 360 kΩ Connect the thermistor and turn on again Replace thermistor R5T Replace outdoor unit PC board A1P YES YES NO NO Caution Be sure to turn off pow...

Page 202: ...R4T or R4 1T R4 2T and coil thermistor R2T or R2 1T R2 2T disconnected from the outdoor unit PC board Refrigerant shortage or refrigerant system is clogged Requires check of refrigerant system Replace the thermistor Replace the outdoor unit PC board YES NO NO Refrigerant shortage or refrigerant system is clogged Requires check of refrigerant system Replace outdoor unit PC board YES YES NO Cooling ...

Page 203: ...ing VF053 Operation is normal if one place of power supply line phase is replaced Fix the open phase Requires inspection of field power supply section Negative phase Disposal of the problem is completed by phase replacement Replace outdoor unit PC board A1P YES YES NO NO There is an open phase at the power supply terminal section TeS1 of the outdoor unit Caution Be sure to turn off power switch be...

Page 204: ... the indoor outdoor unit transmission wiring YES NO NO YES Has the indoor or outdoor unit PC board been replaced or has the indoor outdoor or outdoor outdoor unit transmission wiring been modified All indoor unit remote controllers of the same refrigerant system display U4 NO Outdoor unit PC board microcomputer monitor HAP blinks NO NO Operation ready lamp H2P is blinking Is indoor outdoor and out...

Page 205: ...et one remote controller to SLAVE turn the power supply off once and then back on There is possibility of malfunction caused by noise Check the surrounding area and turn on again NO NO Using 2 remote controllers control All indoor PC board microcomputer monitors blink YES Multi core cable is used for the indoor unit remote controller transmission wiring Operation returns to normal when the power i...

Page 206: ... to IND Cool heat selection is unified C H SELECT is set to MASTER NO Is the indoor outdoor unit transmission wiring normal C H SELECT is set to SLAVE YES NO Check and see if the following items are normal NO Does a malfunction occur when the cool heat selector is set to IND YES Set C H SELECT to IND The cool heat unified address for outdoor units in outdoor outdoor unit transmission is duplicated...

Page 207: ... controller PC board Troubleshooting VF057 SS1 of both remote controllers is set to SLAVE Set SS1 to MASTER the power supply off once and then back on Set one remote controller to MASTER the power supply off once and then back on Turn the power off and then back on If a malfunction occurs replace the remote controller PC board YES YES YES NO NO NO Using 2 remote controllers control SS1 of remote c...

Page 208: ...fer to failure diagnosis for U5 malfunction code Re diagnose by display after passage of 2 minutes or more NO NO Refer to failure diagnosis for U4 malfunction code YES YES U9 has been displayed for 2 minutes or more Turn on all indoor units NO Refer to failure diagnosis for A1 malfunction code NO YES YES The A1 display blinks on the remote controllers of other units within the same refrigerant sys...

Page 209: ... Max 13 units CU 10MX Max 16 units CU 8ME Max 13 units CU 10ME Max 16 units VF059 Replace outdoor unit PC board A1P Use only R22 or R407C units NO YES Are R22 and R407C indoor units used together The total of indoor units displaying UA and indoor units connected to the same refrigerant system is 24 units or less Normal NO NO There are too many indoor units within the same refrigerant system Push a...

Page 210: ...ote controller Defect of indoor unit PC board Troubleshooting VF060 Replace indoor unit PC board Address duplication of central remote controller The setting must be changed so that the central remote control address is not duplicated YES NO Optional controllers for centralised control are connected to the indoor unit Caution Be sure to turn off power switch before connect or disconnect connector ...

Page 211: ...or more than 12 hours or if it is not carried out after running all connected indoor units in the fan mode for at least an hour VF061 Is indoor outdoor and outdoor outdoor unit transmission wiring normal Replace indoor unit PC board Wiring check may not have been carried out successfully After fixing incorrect wiring push and hold the RESET button on the outdoor unit PC board for 5 seconds YES NO ...

Page 212: ...city being introduce for the first time after installation or after an indoor or outdoor unit PC board has been replaced Is indoor outdoor and outdoor outdoor unit transmission wiring normal YES Normal NO Does a malfunction occur NO Does a UH malfunction occur for all indoor units in the system YES NO Does a malfunction occur even after 12 minutes elapses from the time when electricity is introduc...

Page 213: ...power unit Other L4 Radiator fin temperature rise Is the intake port of the radiator fin clogged L5 Instantaneous over current Inspect the compressor L8 Electronic thermostat Inspection the compressor and refrigerant system L9 Stall prevention Inspection the compressor and refrigerant system LC Malfunction of transmission between inverter PC board and outdoor unit PC board Inspect the connectionbe...

Page 214: ... merely entering the five minutes standby while retry is attempted the prescribed number of times If the number of retry times is exceeded within 60 minutes malfunction is ascertained and the corresponding malfunction code is displayed on the indoor unit remote controller 9 Blink 8 On 7 Off LED A 1 2 3 4 Malfunction contents Retry times 9 7 7 7 7 Normal 9 7 7 7 8 Malfunction of fin thermistor 3 9 ...

Page 215: ...ect of fin thermistor Troubleshooting VF063 Characteristic check of the radiator fin thermistor Refer to thermistor characteristics table Defect of power unit radiation Air intake port is clogged Radiator fin is dirty Outdoor temperature is high NO Replace the thermistor YES Abnormal Is reset possible Normal Replace the inverter unit Reset and operate NO YES Temperature of the radiator fin rises A...

Page 216: ...r than artual voltage VF064 Inverter output voltage check Inverter output voltage is not balanced Normal if within 8 V 3φ 380 415V Note Must be measured when frequency is stable Replace the compressor Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor NO Replace the inverter unit YES YES The compressor s coil is discon...

Page 217: ...stable Compressor overload Inspection of the compressor and refrigerant system is required Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor NO Replace the inverter unit YES NO Reset and restart NO The secondary current of the inverter is higher than 15 A 3φ 380 415V for each phase Replace the compressor NO YES Compre...

Page 218: ...ote Must be measured when frequency is stable Unsatisfactory pressure equalization Check refrigerant system Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor YES Replace the inverter unit NO NO Reset and restart NO The difference between high and low pressure when starting is 2 kg cm2 0 196 MPa YES YES Disconnect the ...

Page 219: ...nnected YES Fix the disconnection and turn on again Connect transmission wiring and turn on again NO YES The microcomputer monitor green on the inverter unit is blinking The voltage between red and white of CN on the inverter unit is 220 240 V 50Hz 220 V 60Hz NO Defect of outdoor PC board or defect of inverter unit Check the noise filter Z1F for disconnection and check the power supply wiring or t...

Page 220: ...n wiring between the outdoor unit PC board and inverter unit Monitor field power supply YES Turn K1M ON YES NO Is 220 240 V of power reaching the K1M coil Is 220 240 V at the connector of X1A Replace the inverter unit Replace the inverter unit YES NO NO Does the voltage between terminals P and N gradually rise to 339 VDC 3φ 380 415V after turning on U2 blinks again The voltage between the P and N ...

Page 221: ...r supply voltage between 3 phases L1 L2 L2 L3 L3 L1 for about one continuous week Open phase Normalize field cause Power supply voltage imbalance Explanation for users Contact QC div Fix power supply voltage imbalance YES YES NO Imbalance in supplied voltage is in excess of 20 V 3φ 380 415V 1 Open phase When voltage monitoring is possible 1 Measure voltage at the Z1F power supply terminal block Te...

Page 222: ... Controller Display P4 P4 P4 P4 Supposed Causes Defect of radiator fin temperature sensor Defect of inverter unit Troubleshooting VF070 Replace the radiator fin thermistor Turn on again after letting 30 minutes or more pass after occurrence of malfunction P4 occurs again Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Page 223: ... wiring disconnected or wired incorrectly Is the transmission wiring with the master controller disconnected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central PC board Reset power supply simu...

Page 224: ...ontroller Troubleshooting Urban Multi MX1 ME1 Series Using R 22 203 6 2 PC Board Defect Remote Controller Display M1 M1 M1 M1 Supposed Causes Defect of central remote controller PC board Troubleshooting Replace the central remote controller PC board ...

Page 225: ...rning on off using each optional controllers for centralised control and replace the PC board of the one that is unable to control the indoor unit NO NO Fix the wiring correctly YES YES Has a once connected optional controller for centralised control been disconnected or its address changed Turn on power supply for all optional controllers for centralised control Reset power supply simultaneously ...

Page 226: ...s individual combined connector and reset the power supply for all optional controllers for centralised control simultaneously Arrange so that the connector for setting master control is connected to one controller for centralised control and reset the power supply for all optional controllers for centralised control simultaneously Disconnect the connector for setting master control from the maste...

Page 227: ...es Address duplication of central remote controller Troubleshooting Are two or more central remote controllers connected Disconnect all central remote controllers except one and reset the power supply of the central remote controller Reset power supply of the central remote controller NO YES VF074 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may b...

Page 228: ... wiring disconnected or wired incorrectly Is the transmission wiring with the master controller disconnected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central PC board Reset power supply simu...

Page 229: ...er PACD011001C2 208 Troubleshooting Urban Multi MX1 ME1 Series Using R 22 7 2 PC Board Defect Remote Controller Display M1 M1 M1 M1 Supposed Causes Defect of schedule timer PC board Troubleshooting Replace the schedule timer PC board ...

Page 230: ... on off using each optional controllers for centralised control and replace the PC board of the one that is unable to control the indoor unit NO NO Fix the wiring correctly YES YES Has a once connected optional controller for centralised control been disconnected or its address changed Turn on power supply for all optional controllers for centralised control Reset power supply simultaneously for a...

Page 231: ...r control when the malfunction is cleared is defective and must be replaced Reset the power supply for all optional controllers for centralised control simultaneously Reset the power supply for the schedule timer YES YES NO Is the schedule timer s individual combined connector connected Are there two or more optional controllers for centralised control connected with the connector for setting mast...

Page 232: ...ed Causes Address duplication of optional controllers for centralised control Troubleshooting VF078 Are two or more schedule timers connected Disconnect all schedule timers except one and reset the schedule timer s power supply Reset the power supply for the schedule timer YES NO Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Page 233: ...sconnected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Replace the central PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Reset power supply for all optional controllers for centralised control simultaneously NO YES NO YES YES NO NO Turn the p...

Page 234: ...er s switch for setting each address and reset the power supply of the unified ON OFF controller Refer to failure diagnosis for central remote controller or schedule timer NO YES YES NO NO Fix the wiring correctly Turn on power supply for all optional controllers for centralised control Set reset switch to normal NO NO YES YES YES Is the power supply turned on for all optional controllers for cent...

Page 235: ...imultaneously Arrange so that the connector for setting master control is connected to one controller for centralised control and reset the power supply for all optional controllers for centralised control simultaneously Disconnect the connector for setting master control from the master controller connect to another optional controller for centralised control and simultaneously reset all optional...

Page 236: ...s the switch for setting each address set correctly Is the transmission wiring disconnected or wired incorrectly Fix the wiring correctly Replace the PC board of the unified ON OFF controller Set by remote controller the central control address for all indoor units connected to the central control line YES YES NO Set the switch for setting each address correctly and simultaneously reset the power ...

Page 237: ...Troubleshooting OP Unified ON OFF Controller PACD011001C2 216 Troubleshooting Urban Multi MX1 ME1 Series Using R 22 ...

Page 238: ... 80 6HULHV 8VLQJ 5073 80 6HULHV 8VLQJ 5073 80 6HULHV 8VLQJ 5073 80 6HULHV 8VLQJ 5073 QYHUWHU QYHUWHU QYHUWHU QYHUWHU 0 45 6HULHV 0 45 6HULHV 0 45 6HULHV 0 45 6HULHV HDW 5HFRYHU HDW 5HFRYHU HDW 5HFRYHU HDW 5HFRYHU 0 45 6HULHV 0 45 6HULHV 0 45 6HULHV 0 45 6HULHV ...

Page 239: ...PACD011001C2 218 Urban Multi MX1R ME1R Series Using R 407C ...

Page 240: ...3DUW 4 3DUW 4 3DUW 4 3DUW 4 HQHUDO QIRUPDWLRQ HQHUDO QIRUPDWLRQ HQHUDO QIRUPDWLRQ HQHUDO QIRUPDWLRQ 1 Introduction 220 1 1 Introduction of the Series 220 2 Outline 221 2 1 MX1R Series 221 2 2 ME1R Series Heat Recovery 222 2 3 Allowed Range of Indoor Unit and HR Box Connection 223 ...

Page 241: ...y volume When the total capacity of indoor units exceeds 100 by volume the operating capacities of the indoor units may slightly drop when all the units operate simultaneously High efficiency with power factor of 90 or higher Cooling operation with outside temperature as low as 5 C Heating operation with outside temperature as low as 15 C Simple Branch piping system Super Wiring system Individual ...

Page 242: ...unction 100 meters long refrigerant piping Handles 15 16 story buildings with 50 meters level difference 40 m when outdoor unit is below Outdoor unit Wide selection including 10 types and 61 models Up to 16 units can be connected to a single system Minimum capacity equivalent to 0 8 HP Same wiring can be used for transmission between indoor outdoor units and centralised control no polarity Wiring ...

Page 243: ... m and height difference of 15 m between indoor units Outside temperature of 35 C for operation mode A 0 C for operation mode D and typical seasonal outside temperatures for others No 1 No 2 No 3 No 4 HR box Outdoor unit CU 10ME 10HP Indoor unit A All units in cooling operation D All units in heating operation B Most units in cooling operation and a few units in heating operation C Most units in h...

Page 244: ...em Model of outdoor unit and HR box Total capacity of connectable indoor units Max number of connectable indoor units Range A Total indoor unit capacity CU 8ME1XPK 11 2 to 29 1kW 13 units CU 10ME1XPK 14 to 36 4kW 16 units Range B Total indoor unit capacity allowed for simultaneous cooling heating operations CU 8ME1XPK 11 2kW or more 13 units CU 10ME1XPK 14kW or more 16 units Range C Total indoor u...

Page 245: ...Outline PACD011001C2 224 General Information Urban Multi MX1R ME1R Series Using R 407C ...

Page 246: ...frost 248 1 9 Pressure Equalization Control ME1R Series 251 1 10 Frequency Limit Control by Pressure Equalization ME1R Series 252 1 11 HR Changeover Control ME1R Series 253 1 12 Pump Down Residual Operation 254 1 13 Step Down Safety Control Standby Forced Thermostat OFF Stop Due to Malfunction 255 1 14 Control During Low Outdoor Air Temperature Cooling 258 1 15 Low Noise Control 260 1 16 Demand Co...

Page 247: ...eiver Filter Electronic expansion valve Filter Solenoid valve Fan Heat exchanger Capillary tube Solenoid valve 4 way changeover valve Capillary tube Capillary tube Filter Oil separator Pressure sensor High pressure High pressure switch Comp ressor Pressure sensor Low pressure Accumulator Gauge port Stop valve With service port on field piping side M006 ...

Page 248: ...sure when off in order to reduce load when the compressor starts D Outdoor unit electronic expansion valve Y1E Expansion valve when heating Senses compressor suction pipe and low pressure equivalent saturated temperature and carries out superheat degree control Balances high low pressure when off in order to reduce load when the compressor starts E Solenoid valve injection Y3S Controls injection i...

Page 249: ...illary tube Pressure sensor High pressure Solenoid valve Oil separator Oil separator Filter Filter High pressure switch Inverter comp ressor Capillary tube Capillary tube Standard comp ressor High pressure switch Accumulator Pressure sensor Low pressure Gauge port This piping diagram shows the inverter compressor on the left side but it is located on the right side on an actual machine Stop valve ...

Page 250: ...ly recycled to the compressor via capillary tube D Solenoid valve hot gas bypass Y2S Balances high low pressure when off in order to reduce load when the compressor starts Also valve is opened by low pressure safety control when low pressure drops E Outdoor unit electronic expansion valve Y1E Expansion valve when heating Senses compressor suction pipe and low pressure equivalent saturated temperat...

Page 251: ...Function PACD011001C2 230 Function Urban Multi MX1R ME1R Series Using R 407C 1 1 3 CU 8 10 ME1XPK Heat Recovery 2 D D 2 H 4 4 F C I B B E 3 A A 5 J E 1 G K K Y1R Y2R INV STD 3 4D018352 ...

Page 252: ...ing cooling and heating operation mode change H Solenoid valve for liquid pressure Y6S This valve opens a bypass to send hot gas to the receiver and controls the liquid pressure I Pressure sensor high pressure red SENPH This semiconductor pressure sensor detects discharge pressure The detected refrigerant pressure is used to evaluate the operation conditions of indoor units Heating operation The s...

Page 253: ...s pipe and outdoor unit suction pipe B Solenoid valve discharge side Y3S Turn ON this valve to operate of discharge oil return when indoor unit is set for heating Connect indoor unit gas pipe and outdoor unit discharge pipe C Solenoid valve Drift prevention injection Y1S The only valve in HR box of which indoor unit is in heating operation when simultaneous cooling heating operation is applied in ...

Page 254: ...cooling Carries out heat exchange control during low outdoor air cooling Outdoor temperature thermistor R1T When heating 1Used as the function for defrost IN conditions 1OFF by thermostat when temperature becomes 27 C or higher Coil temperature thermistor R2T When cooling Not used for anything When heating Used together with outdoor temperature as the function for defrost IN conditions Oil tempera...

Page 255: ...h for high pressure safety 20SP 688 6 OFF 31 5 0 1 0kg cm2 ON 22 0 1 0 1 0kg cm2 S2PH Pressure switch for high pressure safety 20SP 688 6 OFF 31 5 0 1 0kg cm2 ON 22 0 1 0 1 0kg cm2 Fusible plug FPG 3D 7 75 C Sensor SENPH Pressure sensor PS8030A 0 34kg cm2 0 3 3MPa SENPL Pressure sensor PS8030A 0 10kg cm2 0 0 98MPa R1T Thermistor for outdoor air 3 5 360KΩ R2T Thermistor for heat exchange 3 5 400KΩ ...

Page 256: ...a ON 2 16 0 1MPa Fusible plug FPG 3D 70 75 C Sensor SENPH Pressure sensor PS8030A 0 3 3MPa SENPL Pressure sensor PS8030A 0 10kg cm 0 0 98MPa R1T Thermistor for outdoor air 3 5 360KΩ R2 1T R2 2T Thermistor for heat exchange 3 5 360KΩ R3 1T Thermistor for inverter discharge pipe 3 5 400KΩ R3 2T Thermistor for standard discharge pipe 3 5 400KΩ R4 1T R4 2T Thermistor for suction pipe 3 5 360KΩ R5T The...

Page 257: ...Function PACD011001C2 236 Function Urban Multi MX1R ME1R Series Using R 407C 1 3 Flow of Refrigerant in Each Operation Mode ME1R Series 1 3 1 Cooling High pressure Low pressure M070 ...

Page 258: ...PACD011001C2 Function Function Urban Multi MX1R ME1R Series Using R 407C 237 1 3 2 Heating High pressure Low pressure M009 ...

Page 259: ...Function PACD011001C2 238 Function Urban Multi MX1R ME1R Series Using R 407C 1 3 3 Simultaneous Cooling and Heating High pressure Low pressure M010 ...

Page 260: ...PACD011001C2 Function Function Urban Multi MX1R ME1R Series Using R 407C 239 1 3 4 Discharge Oil Return Defrost High pressure Low pressure M011 ...

Page 261: ...Function PACD011001C2 240 Function Urban Multi MX1R ME1R Series Using R 407C 1 3 5 Suction Oil Defrost High pressure Low pressure M012 ...

Page 262: ...he motorized valves Y1E and Y2E to maintain a constant superheat SH level at the outlet of the outdoor heat exchanger evaporator SHs Ts Te SHs 5 C Ts1 Suction pipe temperature R4 1T Ts2 Suction pipe temperature R4 2T 3 Heat exchanger PI control Provides PI control for the motorized valve Y1E to maintain TeS and TcS at constant Motorized valve mode L M Factory setting H 4 5 7 5 10 5 L M Factory set...

Page 263: ...1 Heat exchanger 2 FAN EV mode Cooling operation Heat operation COND COND H ON 1 COND COND L ON 1 COND COND H OFF 1 COND COND L OFF 1 COND EVAP H ON 2 COND EVAP L ON 2 COND EVAP H OFF 2 COND EVAP L OFF 2 COND EVAP L OFF 3 COND EVAP L OFF 4 COND EVAP H OFF 4 COND EVAP H ON 4 EVAP EVAP L OFF 4 EVAP EVAP H OFF 4 EVAP EVAP H ON 4 EVAP EVAP H ON 5 ...

Page 264: ...s refrigerant to equalize pressure after the compressor stops fully close the indoor unit s electronic expansion valve for 5 minutes 10 minutes for 8 and 10 HP 1 5 2 Soft Start The following control is carried out to protect the compressor and inverter 1 Operates at low frequency fixed for 1 minute after compressor starts Prevents liquid refrigerant backflow 2 Hot gas bypass solenoid valves open a...

Page 265: ...aming could cause a lack of oil when the compressor is started at the next time It should therefore perform heating lay up start to keep the low pressure from dropping too low in the following cases First starting after being power ON Starting after the compressor has been stopped or thermostat OFF for more than continuous 24 hours Operation During Heating Lay Up Start Make the compressor s upper ...

Page 266: ...pressure inside the dome due to drift and then reverts to normal operation If oil pressure equalization is not achieved during 5 minutes by stopping or step down control oil pressure equalization is carried out when the standard compressor starts running With an inverter compressor operation however if the standard compressor remains off for 10 minutes the cumulative running time of the standard c...

Page 267: ...c d30 sec after oil return start or high pressure is less than 16kg cm2 1 57MPa d eHigh pressure is less than 8 kg cm2 0 78MPa e dHigh pressure is greater than 16 4 kg cm2 1 61MPa d cHigh pressure is greater than 22 kg cm2 2 16MPa When heating only On when low pressure 0 3 kg cm2 0 029MPa Off when low pressure 0 8 kg cm2 0 078MPa Notes 1 While the oil return timer is counting if the compressor fre...

Page 268: ...ction oil return Compressor 86Hz OFF EEV 2000pls Outdoor Unit Fan H ON Outdoor Unit Heat Exchanger Condenser 4 Way Valve OFF Injection 1 Td Protection Control Injection 2 Td Protection Control Hot Gas ON at Lp 0 3k 4 Minutes Elapsed Td Discharge Pipe Temperature Step 3 HR solenoid valve changeover Compressor 38Hz OFF EEV 2000pls Outdoor Unit Fan H ON Outdoor Unit Heat Exchanger Condenser 4 Way Val...

Page 269: ...sition if frost builds up easily and set to L if not Factory set is position M Defrost is carried out when the coil temperature rises to 9 5 C or higher or Pc 22 kg cm and is completed after defrosting for 10 minutes After defrosting indoor units carry out hot start operation and the DEFROSTING display lights until hot start is complete Defrost conditions are not counted from completion of power s...

Page 270: ...sition L Tcoil R2 1T R2 2T 16 C 2 If position M Tcoil R2 1T R2 2T 14 C 3 If position H Tcoil R2 1T R2 2T 12 C Because defrost operation is carried out set to the H position if frost builds up easily and set to L if not Factory set is position M OR At least 20 minutes have elapsed since completion of oil return or since compressor starts High pressure 22k Tc 54 7ºC Compressor is running at least 30...

Page 271: ...mpletion Condition or All of R2 1T R2 2T 9 5ºC Pc 22k 10 Minutes Elapsed Since Defrost Operation Start Step 3 HR solenoid valve changeover Compressor 38Hz OFF EEV 2000pls Outdoor Unit Fan OFF OFF Outdoor Unit Heat Exchanger Condenser 4 Way Valve OFF Injection 1 Td Protection Control Injection 2 OFF Hot Gas ON 40 Seconds Elapsed Step 4 Refrigerant is discharged from accumulator Compressor 76Hz OFF ...

Page 272: ...ching operations Equalizing operation demand Pressure equalization solenoid valve Y1S is ON at following conditions Operating condition of indoor unit with thermostat ON is different from the condition of HR boxes solenoid valve see page 253 Not in startup control Liquid refrigerant not being discharged from accumulator Not in residual pump down operation 7 minutes passed after completion of previ...

Page 273: ...on ME1R Series The compressor operating capacity is limited to prevent abnormal noise caused by the equalizing operation Operating conditions During the first 30 seconds the following operations are conducted Equalizing operation demand issued Not in cooling operation only INV outdoor unit Compressor operating capacity 54Hz OFF ...

Page 274: ...Cooling Condition 2 Heating Condition 3 Condition 4 Oil return defrost Oil return defrost complete Discharge defrost Discharge oil return Suction defrost Suction oil return VF006 Condition Indoor unit operating condition Y3S Y2S Y1S ON Open OFF Closed 1 Cooling Heating stop 1 OFF ON OFF 2 Heating thermostat OFF Heating thermostat ON ON OFF 2 3 Discharge oil return OFF OFF OFF 4 Suction oil return ...

Page 275: ...n is not carried out even if a stop command comes Forced thermostat OFF occurs if defrost or oil return signal comes during residual operation Secondary side heat exchanger 4 way valve Y2R is ON Discharge pipe thermistor R3 1T on inverter side 95 C or lower OR Outside air temperature thermistor R1T 0 C When compressor continuous operating time is less than 10 minutes and thermostat is OFF or when ...

Page 276: ...z OFF 30Hz 8 10HP 5HP 76Hz OFF 48Hz Forced OFF by thermostat E3 stop due to malfunction M013 Lp 2 0kg cm 0 196MPa Lp 1 7kg cm 0 167MPa DSH 30 C Lp 1 2kg cm 0 118MPa Lp 0 3kg cm 0 029MPa Lp 0kg cm 0MPa Cooling 30Hz OFF 30Hz Heating Lp 0 8kg cm 0 078MPa Lp 0 5kg cm 0 049MPa Hot gas bypass valve ON 116Hz OFF 76Hz or 60Hz ON 76Hz Injection valve ON Lp 0 8kg cm 0 078MPa 54 Hz OFF 54Hz as lower limit Fo...

Page 277: ...P 0 8 R1T 5ºC LP 0 5 R1T 5ºC Lp 0 3kg cm 0 029MPa Lp 0kg cm 0MPa Cooling 32Hz OFF Heating simultaneous cool heat operation Hot gas bypass valve ON 106Hz OFF or 62Hz ON Injection valve ON Lp 1 7kg cm 0 167MPa Forced thermostat OFF Up to 2 times in 30 minutes E4 stop due to malfunction Hot gas bypass valve ON VF002 or LP 0 8 R5T Te 10ºC LP 0 5 R5T Te 10ºC or Td 130 C Td 105 C or DSH 55 C DSH Dischar...

Page 278: ... the injection valve for either one goes OFF and discharge super heating DSH continues for 10 minutes at temperature difference of less than 10 C the inverter standard compressor are controlled at 76 Hz or less OFF for 3 minutes Control According to Outdoor Temperature If the outdoor temperature exceeds 23 C when heating forced thermostat OFF is carried out in order to prevent a safety device from...

Page 279: ...ges according to operating status Low outdoor temperature cooling operation Step 1 Fully open L 76 Step 2 Fully open OFF 48 Operating status Electronic expansion valve Fan Frequency Hz M1F M2F 8K 10K Normal operation Fully open H ON Changes according to operating status Low outdoor temperature cooling operation Step 1 1 Fully open L ON 96 116 Step 1 2 Fully open H OFF 86 106 Step 1 3 Fully open L ...

Page 280: ... Normal operation Step 2 Cooling with compressor running doesn t include oil return High pressure 8 0 kg cm 0 784 MPa Radiator fin temperature 67 C Compressor off or Other than cooling includes oil return or High pressure 17 3 kg cm 1 690 MPa or Radiator fin temperature 87 C Conditions satisfied Conditions satisfied M018 ...

Page 281: ...h pressure 26 6 kg cm 2 61 MPa Step2 1 high pressure 20 8 kg cm 2 04 MPa Low noise control reduces capacity by limiting the fan speed and compressor frequency The load when heating is particularly large at night when the outdoor temperature is low and could result in insufficient capacity During low noise control retry is unlimited for standby forced thermostat OFF produced by high pressure low pr...

Page 282: ...ds electric power consumption down to approx 70 Demand 2 Holds electric power consumption down to approx 40 Demand 3 Forced thermostat OFF An optional BMS interface adaptor for outdoor units is required for demand control For method of connection see demand operation in the test operation section Control is carried out by limiting the upper limit for frequency of demand 1 and demand 2 as given in ...

Page 283: ...led every 20 seconds by pressure sensors and the inverter standard compressor is controlled in 20 stages by microcomputer Frequency 32Hz 34Hz 38Hz 42Hz 48Hz 54Hz 60Hz 68Hz 76Hz 86Hz 96Hz 106Hz 116Hz Min output Max output M019 Commercial power supply compressor off Frequency 32Hz OFF 34Hz OFF 38Hz OFF 42Hz OFF 48Hz OFF 54Hz OFF 62Hz OFF 68Hz OFF 76Hz OFF 86Hz OFF 96Hz OFF 106Hz OFF Commercial power...

Page 284: ...g to compressor operating frequency length of piping and indoor load The range is 10 C target Te 5 5 C Piping length is determined automatically during oil return operation Target Tc becomes 3 C higher when indoor load is large Target Tc is controlled in accordance with the following conditions Outdoor temp 10 C target Tc 48 C Outdoor temp 10 C target Tc 51 C Target Tc is 43 C when high pressure 1...

Page 285: ...sure Lp 1 0 kg cm Conditions given on the left continue for 30 min M020 While compressor is running and 4 way valve ON heating cycle and Evaporator outlet superheat temperature 20 C difference and Outdoor unit electronic expansion valve 2000 pulses completely open Gas depletion alarm cancellation Gas depletion alarm U0 is displayed Conditions given on the left continue for 60 min Compressor off or...

Page 286: ...Float Switch is Tripped While the Cooling Thermostat is ON 1 The objective of residual operation is to completely drain any moisture adhering to the fin of the indoor unit heat exchanger when the thermostat goes off during cooling operation 2 One cycle consists of 5 minutes of operation 5 seconds stop and another 5 minutes of operation 1 20 2 When the Float Switch is Tripped During Cooling OFF by ...

Page 287: ...tch is not reset even after the 5 minutes operation 5 seconds stop 5 minutes operation cycle ends operation continues until the switch is reset 1 20 4 When the Float Switch is Tripped and AF is Displayed on the Remote Controller Note If the float switch is tripped five times in succession a drain malfunction is determined to have occurred AF is then displayed as operation continues ...

Page 288: ...Prevention of Oil Dilution during Defrost The unit controls upper limit frequency of the compressor and is designed to prevent oil from being diluted while defrosting by means of an oil temperature sensor Startup subsequent to defrosting is improved by the oil temperature sensor R5T Te 10 C SH 10 C R5T Te 10 C SH 5 C M022 R5T Te 10 C INV 86Hz STD ON R5T Te 10 C INV 116Hz STD ON M023 R5T Te 10 C IN...

Page 289: ...is available on 2 way blow 4 way blow and corner types P0 P1 P2 P4 P3 P0 P1 P2 P4 P3 P0 P0 P1 P2 P4 P4 P2 P1 P0 P4 P4 P3 P2 P1 P0 P3 Existing position Draft prevention position Standard Setting position Ceiling soiling prevention position Draft prevention position Standard position Prohibited Prohibited Dirt prevention position P0 P0 P0 P1 P2 P2 P1 P3 P3 P4 P4 P1 P2 P3 P4 Same as existing position...

Page 290: ...ear the preset temperature Ex When cooling Assuming the preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 30 C A F This example also assumes there are several other air conditioners the UM Series is off and that temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 18 C to 23 C A C Remote co...

Page 291: ...controller can be used so that suction temperature is higher than the preset temperature Ex When heating Assuming the preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 28 C A F This example also assumes there are several other air conditioners the UM Series is off and that temperature changes even when the thermostat sensor is off Body thermostat s...

Page 292: ...ps too low the unit enters freeze prevention operation in accordance with the following conditions and is also set in accordance with the conditions given below Conditions for starting freeze prevention Temperature is 1 C or less for total of 40 min or temperature is 5 C or less for total of 10 min Conditions for stopping freeze prevention Temperature is 7 C or more for 10 min continuously Ex Case...

Page 293: ...Function PACD011001C2 272 Function Urban Multi MX1R ME1R Series Using R 407C ...

Page 294: ...des ME1R Series 288 1 6 Sequential Start 294 1 7 BMS Interface Adaptor for Outdoor Unit MX1R Series 295 1 8 BMS Interface Adaptor for Outdoor Unit ME1R Series 298 1 9 Cool Heat Mode Selection MX1R Series 302 1 10 Cool Heat Mode Switching ME1R Series 309 1 11 Low Noise Demand Operation MX1R Series 311 1 12 Low Noise Operation ME1R Series 313 1 13 Demand Control ME1R Series 314 1 14 Wiring Check Ope...

Page 295: ...Mistaken control transmission wiring loose screws Piping size presence of thermal insulation Measurement of main power circuit insulation Addition or replenishment of refrigerant as needed Fully open respective stop valves on liquid gas Use a 500V megar tester Be sure to record addition or replenishment VF128 Turn on outdoor unit power Set various selectable modes on outdoor unit PC board Turn on ...

Page 296: ... check operation Even if it s the heating season set to cooling mode in order to prevent liquid from backing up To enter the test operation mode push the inspection test operation button of the indoor unit remote controller 4 times Push once more to return to the normal operation mode Make sure cold air is coming from the indoor unit Run the indoor units one at a time and make sure that the corres...

Page 297: ...n for up to 10 minutes in order for master power supply to be set automatically Outdoor unit LED HWL H2P On Test lamp H2P Flicker Can be set while in operation Indoor unit If the ON OFF button is pushed during the aforementioned operation the operation lamp lights but the unit will not run Returns to normal when automatic setting is complete 1 2 3 If outdoor indoor or HR box is extended or if indo...

Page 298: ...PACD011001C2 Test Operation Test Operation Urban Multi MX1R ME1R Series Using R 407C 277 1 3 Outdoor Unit PC Board Ass y 1 3 1 CU 8 10MX1SPP ...

Page 299: ...as been replaced or there has been a change in the combination of indoor and outdoor units such as indoor unit extension etc Service monitor HAP Green Function setting switch or LED LED display 8 On 9 Flicker 7 Off Setting mode 1 H1P off Push 1 time Monitor mode H1P flickers Push 1 time Push and hold for 5 sec Setting mode 2 H1P on Push 1 time Pushbutton switch MODE TEST C H SELECT C H SELECT IND ...

Page 300: ...PACD011001C2 Test Operation Test Operation Urban Multi MX1R ME1R Series Using R 407C 279 1 3 2 CU 8 10ME1XPK Heat Recovery ...

Page 301: ...ss or data Wiring check button Push and hold for 5 sec to start wiring check Reset button Push and hold for 5 sec if the indoor unit s PC board has been replaced or there has been a change in the combination of indoor and outdoor units such as indoor unit extension etc 3 Jumper pin Forced defrost operation by short circuit Setting mode 1 H1P off Push 1 time Monitor mode H1P flickers Push 1 time Pu...

Page 302: ...on If you become unsure of how to proceed push the MODE button and return to setting mode 1 You don t have to perform power supply reset after changing settings in setting mode 1 including SS1 cool heat selection switch on the outdoor unit PC board and setting mode 2 Push the MODE button Push the MODE button Push the SET button Push and hold the MODE button for 5 sec Push the MODE button Setting m...

Page 303: ...ion is set to ON Change sequential start to OFF Setting complete GROUP MASTER cool heat selection ON low noise OFF sequential start SET SET SET SET SET SET SET RETURN RETURN RETURN Monitor mode MODE Setting mode 2 MODE Push and hold for 5 sec M028 MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P SET C H SELECT MODE TEST L N O P SEQ HWL IND MASTER SLAVE START H1P H2P H3P H4P...

Page 304: ... item No 1 in mode 2 Setting Items Note 1 Cannot be set with CU 5 1 2 3 4 5 6 7 8 9 Setting item EMG Low noise demand address Forced fan switch Indoor unit forced operation Frequency fix Te setting Tc setting Defrost setting Not used Description Emergency operation when malfunction occurs Address for low noise demand group operation Fan of stopped indoor unit turns Allows operation of indoor unit ...

Page 305: ... switch 3 S Forced fan operation H tap Normal operation Allows operation of indoor unit from outdoor unit Indoor unit forced operation 4 S Frequency fix Normal operation Fixes the frequency of the inverter compressor Frequency fix 5 S S S S Address 0 Binary number 1 6 digits 2 63 Airnet address Not used 9 S S S S Address 0 Binary number 1 6 digits 2 31 Address for low noise demand group operation ...

Page 306: ...cooling High Normal factory set Low Defrost temperature setting for defrost Quick defrost Normal factory set Slow defrost EMG emergency operation when malfunction occurs ON OF Push the SET button and match with the LEDs No 1 15 push the RETURN button and enter the data for each setting Data such as addresses and number of units is expressed as binary numbers the two ways of expressing are as follo...

Page 307: ...ted HR box 0 63 units Lower 6 digits No 7 ýOýOýOý Number of connected zone units excluding outdoor and HR box 0 63 units Lower 6 digits No 8 ýOýOý ýOýOýO Number of outdoor units 0 63 units Lower 6 digits No 9 ýOýOý ýOýOý Number of HR box 0 128 units Lower 4 digits upper No 10 ýOýOý ýOý ýO Number of HR box 0 128 units Lower 4 digits lower No 11 ýOýOý ýOý Number of zone units excluding outdoor and H...

Page 308: ... the main switches of the indoor and outdoor units Be sure to turn off the main switches of all units within 10 minutes after the first unit is turned off 4 Conduct a refrigerant recovery operation Cancel the setting in the setting mode or cancel the mode by resetting the outdoor unit using the power switch In setting mode 1 depress NEXT PAGE button for 5 seconds to set to setting mode 2 8 7 7 7 7...

Page 309: ...tions with the SET button If you become unsure of how to proceed push the MODE button and return to setting mode 1 You don t have to perform power supply reset after changing settings in setting mode 1 including SS1 cool heat selection switch on the outdoor unit PC board and setting mode 2 Push the MODE button Push the MODE button Push the SET button Push and hold the MODE button for 5 sec Push th...

Page 310: ... OFF sequential start SET SET SET SET SET SET SET RETURN RETURN RETURN Monitor mode MODE Setting mode 2 MODE Push and hold for 5 sec M028 MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P SET C H SELECT MODE TEST L N O P SEQ HWL IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P C H SELECT MODE TEST L N O P SEQ HWL IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P C H SELEC...

Page 311: ...atus of setting item No 1 in mode 2 Setting items 1 2 3 4 5 6 7 8 9 Setting item EMG Low noise demand address Forced fan switch Indoor unit forced operation Frequency fix Te setting Tc setting Defrost setting Not used Description Emergency operation when malfunction occurs Address for low noise demand group operation Fan of stopped indoor unit turns Allows operation of indoor unit from outdoor uni...

Page 312: ... switch 3 S Forced fan operation H tap Normal operation Allows operation of indoor unit from outdoor unit Indoor unit forced operation 4 S Frequency fix Normal operation Fixes the frequency of the inverter compressor Frequency fix 5 S S S S Address 0 Binary number 1 6 digits 2 63 Airnet address Not used 9 S S S S Address 0 Binary number 1 6 digits 2 31 Address for low noise demand group operation ...

Page 313: ...cooling High Normal factory set Low Defrost temperature setting for defrost Quick defrost Normal factory set Slow defrost EMG emergency operation when malfunction occurs ON OF Push the SET button and match with the LEDs No 1 15 push the RETURN button and enter the data for each setting Data such as addresses and number of units is expressed as binary numbers the two ways of expressing are as follo...

Page 314: ...its No 6 ýOýOýOý Number of connected zone units excluding outdoor and HR boxes 0 63 units Lower 6 digits No 7 ýOýOý ýOýOýO Number of outdoor units 0 63 units Lower 6 digits No 8 ýOýOý ýOýOý Number of HR boxes 0 128 units Lower 4 digits upper No 9 ýOýOý ýOý ýO Number of HR boxes 0 128 units Lower 4 digits lower No 10 ýOýOý ýOý Number of zone units excluding outdoor and HR boxes 0 63 units Lower 6 d...

Page 315: ... supply You should however connect an outdoor unit of small capacity as the third unit in the sequence Method of Sequential Start 1 Power supply wiring Must be wired as a group to the power supply 2 Wiring Connect transmission wiring to terminals F1 and F2 outdoor outdoor on the outdoor unit PC board A1P Switch to the monitoring mode and see if sequential start has been selected If not switch to s...

Page 316: ...f If not using cool heat central remote controller LED remains off 3 Function switch SS1 Factory set BOTH Sets whether the address setting switch will set cool heat address demand low noise address or both 4 Cool heat central remote controller selection switch SS2 Factory set No Sets whether cool heat central remote controller is connected or not 5 Address setting switch DS2 DS1 Factory set 0 Sets...

Page 317: ...eries Using R 407C System Examples Group selection of cool heat mode by indoor unit remote controller Switch Settings on the Adaptor PCB SS1 SS2 DS1 DS2 BOTH C H DE FUNCTION BOTH BOTH C H DE FUNCTION C H OR M038 CENTRAL C H SELECTOR OFF ON OFF M039 DS2 DS1 Address 0 M040 ...

Page 318: ...ettings Group master unit SS1 IN D UNIT Setting mode 1 C H SELECT MASTER Setting mode 2 Cool heat group address 0 Combines DS1 and DS2 of PC board adaptor Group slave unit SS1 IN D UNIT or OUT D UNIT Setting mode 1 C H SELECT SLAVE Setting mode 2 Cool heat group address 0 Combines DS1 and DS2 of adaptor PCB ...

Page 319: ...or unit to HR boxes or indoor units connected in a UM net you can simultaneously select cool heat mode for several outdoor units in the system and it enables demand control and low noise control Part Names and Functions Note 1 SS2 is not applicable to cooling only system 1 8 1 Cool Heat Mode Unified Selection For detailed example of wiring see the page describing cool heat mode control System outl...

Page 320: ...er by cool heat central remote controller Switch settings on adaptor printed circuit board SS1 BOTH is selected when demand control is carried out at the same time SS2 DS1 2 BOTH C H DE C H SL302 OFF ON OFF SL303 SS1 When demand control is used together set the switch to BOTH SS2 DS1 2 For individual control do not use the same address twice BOTH C H DE Cool SL305 OFF ON ON SL306 ...

Page 321: ...ation Low noise control Outdoor unit Running noise can be reduced by 2 3dB by controlling capacity of outdoor unit System general When each system is set to the same address the same demand control operation is conducted Common Address setting DS1 DS2 Decide the address for each control unit from 0 9 and set Notes Setting is within 8 groups when using a cool heat central remote controller Set from...

Page 322: ...yl cord or cable 0 75 1 25 mm double core Wiring length Max 150 m Run separate from power line in order to prevent malfunction Installation positions Model series Installation box plate Installation position Outdoor unit Function unit Not necessary Inside main unit s electric box Indoor unit CS UM KRP1B98 Regarding installation position see the page describing the remote group control adaptor CS L...

Page 323: ...m group in accordance with group master outdoor unit by indoor unit remote controller 4 Setting of cool heat by outdoor unit system group in accordance with group master outdoor unit by cool heat selector Each of these setting methods is explained in detail below For 3 and 4 be sure to perform power supply reset after changing settings 1 9 1 Setting of Cool Heat by Individual Outdoor Unit System b...

Page 324: ...ing R 407C 303 1 9 2 Setting of Cool Heat by Individual Outdoor Unit System by Cool Heat Selector Doesn t matter whether or not there is outdoor outdoor unit wiring Set SS1 of the outdoor unit PC board to OUT D UNIT In setting mode 1 set cool heat selection to IND factory set ...

Page 325: ...B to IN D UNIT factory set In setting mode 1 set the outdoor unit you want to give cool heat selection permission to as the group master and set the other outdoor units as group slave units Set SS1 of the BMS interface adaptor for outdoor unit to BOTH factory set or C H Set SS2 to OFF factory set 1 9 4 Setting of Cool Heat by Outdoor Unit System Group in Accordance with Group Master Outdoor Unit b...

Page 326: ...g mode 2 Adaptor PCB No 0 Outdoor unit group master No 0 Outdoor unit group slave No 0 Outdoor unit group slave No 0 Cool heat group address llllll DS2 DS1 Adaptor PCB No 1 Outdoor unit group master No 1 Outdoor unit group slave No 1 Cool heat group address lllll DS2 DS1 Adaptor PCB No 2 Outdoor unit group master No 2 Outdoor unit group slave No 2 Outdoor unit group slave No 2 Cool heat group addr...

Page 327: ...Test Operation PACD011001C2 306 Test Operation Urban Multi MX1R ME1R Series Using R 407C Setting Method 1 9 3 and 1 9 4 address setting method combine lower 5 digits as binary number ...

Page 328: ...unit in the outdoor to outdoor indoor to outdoor or indoor to indoor signal transmission line In setting mode 1 set all outdoor units as slaves Set the SS1 on the outdoor unit external control adaptor to Both factory setting or Cool and the SS2 to ON In setting mode 2 set the DS1 and DS2 on the BMS interface adaptor for outdoor unit and so that they match the cool heat unified addresses on the out...

Page 329: ... Operation PACD011001C2 308 Test Operation Urban Multi MX1R ME1R Series Using R 407C Address settings to be made in step 1 9 5 set two middle digits and three lower digits based on binary system No 0 0 3 7 ...

Page 330: ...tems using the indoor unit remote controller 2 Set cool heat individually for all HR box systems using the cool heat select remote controller 3 Set cool heat individually for all HR box systems using the cool heat central remote controller 1 10 1 Set cool heat individually for all HR box systems using the indoor unit remote controller 1 10 2 Set cool heat individually for all HR box systems using ...

Page 331: ...C2 310 Test Operation Urban Multi MX1R ME1R Series Using R 407C 1 10 3 Set cool heat individually for all HR box systems using the cool heat central remote controller Install the BMS interface adaptor for outdoor unit in HR box ...

Page 332: ...ed out in accordance with contact input received from the adaptor in each zone Outdoor unit address setting Setting mode 2 see page 283 BMS interface adaptor for outdoor unit address setting Decide and set demand address 0 31 for each demand and low noise control zone See fig below Set SS1 to BOTH factory set or C H F1 F2 Demand address llllll F1 F2 BMS interface adaptor for outdoor unit F1 F2 F1 ...

Page 333: ... approx 70 Short circuit between Demand 2 and C Holds demand down to approx 40 Short circuit between Demand 3 and C Forced OFF by thermostat L N O jumper Carries out low noise operation Input Signal Input current by constant contact is about 10 mA per contact Use a micro current contact for the relay contact Exterior wiring specifications for demand and low noise operation Recommended wiring Sheat...

Page 334: ...B 1 Outdoor unit field setting Setting mode 1 Set low noise operation to ON Setting mode 2 Match low noise operation and demand control address with address of BMS interface adaptor for outdoor unit 2 BMS interface adaptor for outdoor unit setting Function switch SS1 Set to BOTH or DE Address setting switches DS1 DS2 Match with outdoor unit low noise operation and demand control address 3 Short ci...

Page 335: ...ions for demand control operation 1 Outdoor unit field setting 2 BMS interface adaptor for outdoor unit setting Function switch SS1 Set to BOTH or DE Address setting switches DS1 DS2 Match with outdoor unit low noise operation and demand control address 3 Select one from demand input terminals 1 through 3 on the BMS interface adaptor for outdoor unit and short the corresponding terminals 1 Demand ...

Page 336: ...ds to perform wiring check operation While running TEST H2P lights and goes off when finished If TEST H2P flickers wiring check operation failure push and hold the RESET button BS5 for 5 seconds and then repeat the procedure from the beginning 3 About 1 minute after you finish running the system once again check the number of connected indoor units in the monitor mode and make sure the number agre...

Page 337: ... Note This operation is not required when setting as a group 4 Push the button and select the first code No 5 Push the button and select the second code No 6 Push the timer button one time and define the currently set contents 7 Push the button to return to the normal mode 1 15 2 Wireless Remote Controller CZ 01 02RW Type 1 When in the normal mode push the button for 4 seconds or more and operatio...

Page 338: ...ection of output for adaptor for wiring Indoor unit turned ON by thermostat Operation output Malfunctionoutput 1 ON OFF input from outside Set when ON OFF is to be controlled from outside Forced OFF ON OFF control External protection device 2 Thermostat differential changeover Set when remote sensor is to be used CS LM CS UM CS DM CS TM only 1 C 0 5 C 3 OFF by thermostat fan speed LL Set fan speed...

Page 339: ... the button 3 Push the button to inspect the group No display 4 Set the group No for each group with the button The group No increases in the manner of 1 00 1 01 1 15 2 00 4 15 However the unified ON OFF controller displays only the group No within the range selected by the switch for setting each address 5 Push the button to define the selected group No 6 Push the button to return to the normal m...

Page 340: ...push the button for 4 seconds or more and operation then enters the field set mode 2 Set mode No 00 with the button 3 Set the group No for each group with the button advance backward 4 Enter the selected group numbers by pushing the button 5 Push the button and return to the normal mode Group No Setting Example If you have to set the address for each unit for calculating cost etc set the mode No t...

Page 341: ...er remote controller Operation mode selection 1 Continue pushing OPERATION MODE SELECTOR button on remote controller which is not displaying changeover under control for about 4 seconds The display of CHANGEOVER UNDER CONTROL on all remote controllers connected to the same outdoor unit blinks 2 Push the OPERATION MODE SELECTOR of the remote controller you want to set as the master remote controlle...

Page 342: ... Remote controllers displaying CHANGEOVER UNDER CONTROL 1 Set to Cool Heat Auto l switch to the operation mode set by the master remote controller l However they can switch to FAN operation and from COOL to DRY If you set a Master remote controller Remote controller not displaying CHANGEOVER UNDER CONTROL The other remote controllers Remote controllers displaying CHANGEOVER UNDER CONTROL 2 Set to ...

Page 343: ...Test Operation PACD011001C2 322 Test Operation Urban Multi MX1R ME1R Series Using R 407C ...

Page 344: ...r Unit Malfunction of Capacity Determination Device 351 3 9 Indoor Unit Malfunction of Thermistor R2T for Liquid Pipe 352 3 10 Indoor Unit Malfunction of Thermistor R3T for Gas Pipes 353 3 11 Indoor Unit Malfunction of Thermistor R1T for Air Inlet 354 3 12 Indoor Unit Malfunction of Thermostat Sensor in Remote Controller 355 3 13 Outdoor Unit Actuation of Safety Device 356 3 14 Outdoor Unit PC Boa...

Page 345: ...n Compressor Lock 385 5 5 Outdoor Unit Malfunction of Transmission between Inverter and Control PC Board 386 5 6 Power Supply Insufficient or Instantaneous Failure 387 5 7 Outdoor Unit Inverter Over Ripple Protection 388 5 8 Outdoor Unit Malfunction of Inverter Radiating Fin Temperature Rise Sensor 389 6 Troubleshooting OP Central Remote Controller 390 6 1 Malfunction of Transmission between Centr...

Page 346: ...uver M1S OFF Drain up kit M1P OFF Electronic expansion valve Y1E Closed Optional auxiliary electric heater 52H OFF Depress reset Operation ON OFF switch Operation display lamp ON Air flow rate setting display ON Air flow direction setting display ON Temperature setting display ON Indicates previous settings for air flow rate and direction and temperature NO ON OFF YES NO Option YES Fan Ventilation...

Page 347: ... flow Drain up kit M1P OFF after 5 minutes residual operation Frost prevention operation in progress Test run in progress Thermostat status Drain up kit Y1E ON OFF Drain up kit M1P OFF after 5 minutes residual operation Electronic expansion valve Y1E OFF Thermostat on operation signal to outdoor unit Cancelled Electronic expansion valve Y1E Capacity control Thermostat ON operation signal to outdoo...

Page 348: ...perature during programmed dry operation Fan in operation Swing flap Air flow direction setting Swing flap Fan MF Operating at set air flow rate Electronic expansion valve Y1E closed Drain up kit M1P OFF Auxiliary electric heater 52H OFF Humidifier Hu OFF Electric dust collector ON A 10 11 9 NO YES Option M057 9 Fan operation When fan operation has been selected using the remote controller operati...

Page 349: ...ary electric heater 52H ON Humidifier Hu ON Fan M1F Operating at set air flow volume Fan M1F L operation Fan M1F OFF Electronic expansion valve Y1E capacity contorol Electronic expansion valve Y1E closed Electronic expansion valve Y1E open Auxiliary electric heater 52H OFF Humidifier Hu OFF NO NO NO YES YES NO YES YES YES 13 12 14 15 12 NO Low discharge air temperature protection YES NO Option Opt...

Page 350: ...ooting Urban Multi MX1R ME1R Series Using R 407C 329 14 Thermostat status 15 Low discharge air temperature protection Protection is effected when the preset temperature is 24 C or lower and the opening of the electronic expansion valve is slight ...

Page 351: ... Inverter compressor magnetic contactor K1M OFF Output frequency to inverter INV 0 Hz Standard compressor magnetic contactor K2M Closed Electronic expansion valve Y1E OFF Solenoid valve hot gas Y2S OFF Solenoid valve injection Y3S Y4S OFF Solenoid valve pressure equalizing bypass ON or OFF 4 way valve Y1R On during heating operation off during cooling or fan operation M060 16 If the outdoor unit m...

Page 352: ...Fan Fan 30 116 Hz by PI control 20 ON OFF by PI control OFF H ON 30 116 Hz OFF ON OFF by saturation temperature corresponding to suction pressure 22 ON 30 116 Hz by PI and protective control ON OFF by PI and protective control Open 38 Hz ON 42 Hz OFF ON ON Cooling operation Start control in progress Oil equalization in progress Compressor protection operation in progress Low temperature protection...

Page 353: ...by PI control 24 ON OFF by PI control OFF Heating operation Start control in progress Defrosting operation in progress Oil equalization in progress Compressor protection operation in progress M062 K1M INV K2M Y1E Y2S Y3S Y4S Y1R M1F M2F ON OFF by discharge temperature protection control ON 18 Start control 60 second start control in order to prevent liquid back to the compressor 19 Compressor prot...

Page 354: ...FF When Tc becomes greater than 52 4 C fan speed returns to H ON 23 Compressor protection 1 Protection control is triggered when secondary inverter current exceeds set current 2 Protection control is triggered by discharge temperature 3 Protection control is triggered when the heating load is small and the saturation temperature corresponding to suction pressure is high 4 Protection control is tri...

Page 355: ... Inspection Test Operation button for more than 4 seconds Press Inspection Test Operation button once Press Inspection Test Operation button once Or after 30 minutes After 10 seconds Press Inspection Test Operation button once Press Inspection Test Operation button once Indoor unit settings can be made Filter sign time Air flow direction Others Following codes can be checked Malfunction codes Indo...

Page 356: ... operation stops due to malfunction the remote controller s operation LED blinks and malfunction code is displayed Even if stop operation is carried out malfunction contents are displayed when the inspection mode is entered The malfunction code enables you to tell what kind of malfunction caused operation to stop See page 342 for malfunction code and malfunction contents ...

Page 357: ...ort beeps Conduct all of the following operations 1 short beep Conduct steps 3 and 4 Continue the operation in step 4 until a buzzer remains ON The continuous buzzer indicates that the malfunction code is confirmed Continuous beep No abnormality 3 Press the MODE selector button The left 0 upper digit indication of the malfunction code flashes 4 Malfunction code upper digit diagnosis Press the UP o...

Page 358: ...ACD011001C2 Troubleshooting by Remote Controller Troubleshooting Urban Multi MX1R ME1R Series Using R 407C 337 The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed ...

Page 359: ...Troubleshooting by Remote Controller PACD011001C2 338 Troubleshooting Urban Multi MX1R ME1R Series Using R 407C ...

Page 360: ... type code Model CS KM CS LM CS DM CS UM CS TM CS FM CS PM CS EM Type UM Inverter MX1R Series UM Combination MA1R Series Using R407C Display A A 1 A A 3 Outdoor model code Model CU MX PA MA Unit Malfunction code Inspection Normal display No display 0 L 0 Malfunction code blinks when a malfunction occurs Unit Malfunction code Inspection Inspection mode Push the button Inspection test operation Push...

Page 361: ...ect the unit No For group control only Select the indoor unit No to be set with the time mode For wireless remote controller button 3 Make the settings required for each mode Modes 41 44 45 In case of Mode 44 45 push the timer button to be able to change setting before setting work LCD code blinks For details refer to the table in next page 4 Define the setting contents Modes 44 45 Define by pushi...

Page 362: ... fan ON by each unit When you want to search for the unit No By selecting the unit No with the button you can turn the fan of each indoor unit on forced ON individually 44 Individual setting Set the fan speed and air flow direction by each unit Select the unit No with the time mode button Set the fan speed with the button Set the air flow direction with the button 45 Unit No transfer Transfer unit...

Page 363: ...r filter maintenance AJ 9 9 9 Malfunction of capacity determination device 351 C4 9 9 9 Malfunction of thermistor R2T for liquid pipe loose connection disconnection short circuit failure 352 C5 9 9 9 Malfunction of thermistor R3T for gas pipes loose connection disconnection short circuit failure 353 C9 9 9 9 Malfunction of thermistor R1T for air inlet loose connection disconnection short circuit f...

Page 364: ...tween remote controller and indoor unit 372 U5 7 8 7 Failure of remote controller PC board or setting during control by remote controller U7 9 9 9 Malfunction of transmission between indoor units Malfunction of transmission between outdoor units malfunction of transmission between outdoor unit and ice build up heat unit U7 8 7 9 Malfunction of transmission between outdoor units cool heat unified l...

Page 365: ...oard Troubleshooting VF029 Indoor unit PC board replacement Actuation of external protection device Change the second code No to 01 or 02 External protection device is connected to terminals T1 and T2 of the indoor unit terminal block ON OFF input from outside mode No 12 first code No 1 has been set to external protection device input second code No 03 by remote controller YES NO NO YES Caution Be...

Page 366: ...g Troubleshooting Urban Multi MX1R ME1R Series Using R 407C 345 3 2 Indoor Unit PC Board Defect Remote Controller Display A1 A1 A1 A1 Supposed Causes Defect of indoor unit PC board Troubleshooting Replace the indoor unit PC board ...

Page 367: ...tor or float switch and turn on again YES YES YES YES Defect of indoor unit PC board Loose connection of connector NO NO NO YES YES NO NO YES NO YES NO NO The float switch is connected to X18A of the indoor unit PC board NO The drain pump works when the power supply is reset for the indoor unit The drain pump is connected to X25A or terminals X8S and X9S of the indoor unit PC board The voltage of ...

Page 368: ...Troubleshooting Connect the wiring and turn on again Fix the wiring and turn on again YES NO NO NO YES YES Replace the indoor unit PC board Replace the fan motor Is the wiring from the fan motor securely connected to X4A and X5A on the indoor unit PC board Wiring between the indoor unit PC board and fan motor is disconnected Does the fan motor run VF031 Caution Be sure to turn off power switch bef...

Page 369: ...nit PC board NO NO YES NO YES NO YES YES NO Indoor unit is a model equipped with a swing flap function The swing motor works when the power supply is turned off and then back on When the air flow direction flap s cam mechanism is disconnected from the swing motor operation is normal when turned on again The connecting cable has no continuity After turning the swing flap ON and then stopping with t...

Page 370: ...connecting turn the power supply off and then back on Replace the moving part of the electronic expansion valve YES YES NO NO Replace the connecting cable If you turn the power supply off and turn on again and it still does not help replace the indoor unit PC board NO YES The electronic expansion valve is connected to X7A of the indoor unit PC board Normal when coil check 1 of the moving part of t...

Page 371: ...ect of drain pipe upward slope etc Defect of indoor unit PC board Troubleshooting Defect of indoor unit PC board Modify the drain piping YES YES Check if the humidifier unit is leaking NO NO Field drain piping has a defect such as upward sloping A humidifier unit optional accessory is installed on the indoor unit VF034 Caution Be sure to turn off power switch before connect or disconnect connector...

Page 372: ...ptor Defect of indoor unit PC board Troubleshooting VF035 Install a capacity setting adaptor Replace the indoor unit PC board NO NO YES YES Replace the indoor unit PC board The indoor unit PC board was replaced with a replacement PC board The indoor unit is a model that requires installation of a capacity setting adaptor when replacing the PC board Caution Be sure to turn off power switch before c...

Page 373: ...fect of indoor unit PC board Troubleshooting VF036 Replace the indoor unit PC board Connect the thermistor and turn on again NO NO Replace the thermistor R2T YES YES Connector is connected to X12A of the indoor unit PC board Resistance is normal when measured after disconnecting the thermistor R2T from the indoor unit PC board 3 5kΩ 360kΩ Caution Be sure to turn off power switch before connect or ...

Page 374: ...e Defect of indoor unit PC board Troubleshooting VF037 Replace the indoor unit PC board Connect the thermistor and turn on again NO NO Replace the thermistor R3T YES YES Connector is connected to X11A of the indoor unit PC board Resistance is normal when measured after disconnecting the thermistor R3T from the indoor unit PC board 0 6kΩ 360kΩ Caution Be sure to turn off power switch before connect...

Page 375: ...t Defect of indoor unit PC board Troubleshooting Replace the indoor unit PC board Connect the thermistor and turn on again NO NO Replace the thermistor R1T YES YES Connector is connected to X13A of the indoor unit PC board Resistance is normal when measured after disconnecting the thermistor R1T from the indoor unit PC board 7 2kΩ 112kΩ VF038 Caution Be sure to turn off power switch before connect...

Page 376: ...auses Defect of remote controller thermistor Defect of remote controller PC board Troubleshooting Turn power supply OFF then power ON again Is CJ displayed on the remote controller YES Replace remote controller External factor other than equipment malfunction for example noise etc VF039 NO Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurr...

Page 377: ...r Defect of capacitor etc VF040 Connector or terminal is connected to X8A X9A of the outdoor unit PC board A1P and X1S X2S Contacts F2C X1S X2S are open Connect the connector or terminal and turn on again Actuation of magnet switch OC for standard compressor 1 Actuation of fan motor safety thermostat 2 YES NO NO YES Contact Q1M X8A or Q2M X9A is open NO YES Operation is normal when turned on again...

Page 378: ...oubleshooting Urban Multi MX1R ME1R Series Using R 407C 357 3 14 Outdoor Unit PC Board Defect Remote Controller Display E1 E1 E1 E1 Supposed Causes Defect of outdoor unit PC board A1P Troubleshooting Replace outdoor unit PC board A1P ...

Page 379: ...h HPS The outdoor unit PC board s connector is disconnected Is the outdoor unit heat exchanger dirty Defect of outdoor fan Is the refrigerant over charged Operation is normal when turned on again by remote controller Replace outdoor unit PC board A1P Actuation of high pressure switch 1 YES YES There was an instantaneous power failure or a past safety device actuated Re check refrigerant system NO ...

Page 380: ...t point 2 Refer to pressure sensor pressure voltage characteristics table on P587 VF042 Low pressure at stop due to malfunction is 0 0 kg cm2 Measure the voltage VL of X21A pin No 2 3 of outdoor PC board A1P 1 Is the relationship between low voltage and VL normal Refrigerant shortage refrigerant system clogging wiring and piping wrong connection Replace the low pressure sensor Replace outdoor unit...

Page 381: ...inuity Approx 300Ω Continuity Approx 150Ω No continuity Note MX1R Series X12A ME1R Series X14A X15A VF043 Electronic expansion valve is connected to X12A or X14A X15A of outdoor unit PC board A1P Normal when coil check 1 of the moving part of the electronic expansion valve is checked The connecting cable is short circuited or disconnected Replace the connecting cable Replace outdoor unit PC board ...

Page 382: ...Discharge pipe temperature is 135 C or higher Is there a wrong connection of the injection solenoid valves Y3S and Y4S Is there a wrong connection of the discharge pipe thermistor R3T or R3 1T inverter side R3 2T standard side Are the characteristics of the discharge pipe thermistor normal R3T or R3 1T R3 2T See 1 Replace outdoor unit PC board A1P Connect correctly and turn on again Replace the di...

Page 383: ... board A1P Troubleshooting The alarm indicator is displayed when the fan is being used also VF045 Resistance is normal when measured after disconnecting the thermistor R1T from the outdoor unit PC board 3 5kΩ 360kΩ Connector is connected to X20A of outdoor PC board A1P Replace outdoor unit PC board A1P Connect the thermistor and turn on again NO NO Replace the thermistor R1T YES YES Caution Be sur...

Page 384: ...d when the fan is being used also Note VF046 Resistance is normal when measured after disconnecting the thermistor R3T or R3 1T R3 2T from the indoor unit PC board 3 5kΩ 400kΩ Replace outdoor unit PC board A1P Connect the thermistor and turn on again NO NO Replace the thermistor R3T or R3 1T R3 2T YES YES Connector is connected to X17A 18 or X16A 17 of outdoor unit PC board A1P Caution Be sure to ...

Page 385: ...s displayed when the fan is being used also Note MX1R Series R4T X16A ME1R Series R4 1T X14A R4 2T X15A VF047 Resistance is normal when measured after disconnecting the thermistor R4T or R4 1T R4 2T from the indoor unit PC board 3 5kΩ 360kΩ Replace outdoor unit PC board A1P Connect the thermistor and turn on again NO NO Replace the thermistor R4T or R4 1T R4 2T YES YES Connector is connected to X1...

Page 386: ...isplayed when the fan is being used also Note MX1R Series R2T X19A ME1R Series R2 1T X18A R2 2T X19A VF048 Resistance is normal when measured after disconnecting the thermistor R2T or R2 1T R2 2T from the indoor unit PC board 3 5kΩ 360kΩ Replace outdoor unit PC board A1P Connect the thermistor and turn on again NO NO Replace the thermistor R2T or R2 1T R2 2T YES YES Connector is connected to X19A ...

Page 387: ...rement point 2 Refer to pressure sensor pressure voltage characteristics table on P587 VF049 The relationship between the VH and high pressure is normal see 2 when voltage is measured between X22A pins 1 and 3 of outdoor unit PC board A1P see 1 Replace the high pressure sensor Connect the high pressure sensor and turn on again NO NO Replace outdoor unit PC board A1P YES YES The high pressure senso...

Page 388: ... measurement point 2 Refer to pressure sensor pressure voltage characteristics table on P587 VF050 The relationship between the VH and low pressure is normal see 2 when voltage is measured between X21A pins 2 and 3 of outdoor unit PC board A1P see 1 Replace the low pressure sensor Connect low pressure sensor and restart NO NO Replace outdoor unit PC board A1P YES YES The low pressure sensor is con...

Page 389: ...A1P Troubleshooting Note MX1R Series R5T X15A ME1R Series R5T X13A VF051 Is the connector is connected to X15A or X13A of the outdoor PC board A1P Resistance is normal when measured with thermistor R5T disconnected from the outdoor unit PC board 0 6 kΩ 360 kΩ Connect the thermistor and turn on again Replace thermistor R5T Replace outdoor unit PC board A1P YES YES NO NO Caution Be sure to turn off ...

Page 390: ... R4T or R4 1T R4 2T and coil thermistor R2T or R2 1T R2 2T disconnected from the outdoor unit PC board Refrigerant shortage or refrigerant system is clogged Requires check of refrigerant system Replace the thermistor Replace the outdoor unit PC board YES NO NO Refrigerant shortage or refrigerant system is clogged Requires check of refrigerant system Replace outdoor unit PC board YES YES NO Cooling...

Page 391: ...oting VF053 Operation is normal if one place of power supply line phase is replaced Fix the open phase Requires inspection of field power supply section Negative phase Disposal of the problem is completed by phase replacement Replace outdoor unit PC board A1P YES YES NO NO There is an open phase at the power supply terminal section TeS1 of the outdoor unit Caution Be sure to turn off power switch ...

Page 392: ...ix the indoor outdoor unit transmission wiring YES NO NO YES Has the indoor or outdoor unit PC board been replaced or has the indoor outdoor or outdoor outdoor unit transmission wiring been modified All indoor unit remote controllers of the same refrigerant system display U4 NO Outdoor unit PC board microcomputer monitor HAP blinks NO NO Operation ready lamp H2P is blinking Is indoor outdoor and o...

Page 393: ...rd Set one remote controller to SUB turn the power supply off once and then back on There is possibility of malfunction caused by noise Check the surrounding area and turn on again NO NO Using 2 remote controllers control All indoor PC board microcomputer monitors blink YES Multi core cable is used for the indoor unit remote controller transmission wiring Operation returns to normal when the power...

Page 394: ...o IND Cool heat selection is unified C H SELECT is set to Unfied MAIN NO Is the indoor outdoor unit transmission wiring normal C H SELECT is set to Unfied SUB YES NO Check and see if the following items are normal NO Does a malfunction occur when the cool heat selector is set to IND YES Set C H SELECT to IND The cool heat unified address for outdoor units in outdoor outdoor unit transmission is du...

Page 395: ... controller PC board Troubleshooting VF057 SS1 of both remote controllers is set to SLAVE Set SS1 to MASTER the power supply off once and then back on Set one remote controller to MASTER the power supply off once and then back on Turn the power off and then back on If a malfunction occurs replace the remote controller PC board YES YES YES NO NO NO Using 2 remote controllers control SS1 of remote c...

Page 396: ...fer to failure diagnosis for U5 malfunction code Re diagnose by display after passage of 2 minutes or more Refer to failure disgnosis for UA malfuntion code NO NO NO NO Refer to failure diagnosis for U4 malfunction code YES YES YES U9 has been displayed for 2 minutes or more Turn on all indoor units Refer to failure diagnosis for A1 malfunction code NO YES The A1 display blinks on the remote contr...

Page 397: ...x 13 units CU 10MX Max 16 units CU 8ME Max 13 units CU 10ME Max 16 units VF059 The total of indoor units displaying UA and indoor units connected to the same refrigerant system is 24 units or less Replace outdoor unit PC board A1P Use only R22 or R407C units NO NO Normal NO There are too many indoor units within the same refrigerant system Push and hold the RESET button on the outdoor unit PC boar...

Page 398: ...emote controller Defect of indoor unit PC board Troubleshooting VF060 Replace indoor unit PC board Address duplication of central remote controller The setting must be changed so that the central remote control address is not duplicated YES NO Optional controllers for centralized control are connected to the indoor unit Caution Be sure to turn off power switch before connect or disconnect connecto...

Page 399: ... for more than 12 hours or if it is not carried out after running all connected indoor units in the fan mode for at least an hour VF061 Is indoor outdoor and outdoor outdoor unit transmission wiring normal Replace indoor unit PC board Wiring check may not have been carried out successfully After fixing incorrect wiring push and hold the RESET button on the outdoor unit PC board for 5 seconds YES N...

Page 400: ...ricity being introduce for the first time after installation or after an indoor or outdoor unit PC board has been replaced Is indoor outdoor and outdoor outdoor unit transmission wiring normal YES Normal NO Does a malfunction occur NO Does a UH malfunction occur for all indoor units in the system YES NO Does a malfunction occur even after 12 minutes elapses from the time when electricity is introd...

Page 401: ...rd power unit Other L4 Radiator fin temperature rise Is the intake port of the radiator fin clogged L5 Instantaneous over current Inspect the compressor L8 Electronic thermal Inspection the compressor and refrigerant system L9 Stall prevention Inspection the compressor and refrigerant system LC Malfunction of transmission between inverter PC board and outdoor unit PC board Inspect the connectionbe...

Page 402: ... by merely entering the five minutes standby while retry is attempted the prescribed number of times If the number of retry times is exceeded within 60 minutes malfunction is ascertained and the corresponding malfunction code is displayed on the indoor unit remote controller 9 Blink 8 On 7 Off LED A 1 2 3 4 Malfunction contents Retry times 9 7 7 7 7 Normal 9 7 7 7 8 Malfunction of fin thermistor 3...

Page 403: ...efect of fin thermistor Troubleshooting VF063 Characteristic check of the radiator fin thermistor Refer to thermistor characteristics table Defect of power unit radiation Air intake port is clogged Radiator fin is dirty Outdoor temperature is high NO Replace the thermistor YES Abnormal Is reset possible Normal Replace the inverter unit Reset and operate NO YES Temperature of the radiator fin rises...

Page 404: ...her than actual voltage VF064 Inverter output voltage check Inverter output voltage is not balanced Normal if within 8 V 3φ 380 415V Note Must be measured when frequency is stable Replace the compressor Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor NO Replace the inverter unit YES YES The compressor s coil is disc...

Page 405: ...s stable Compressor overload Inspection of the compressor and refrigerant system is required Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor NO Replace the inverter unit YES NO Reset and restart NO The secondary current of the inverter is higher than 15 A 3φ 380 415V for each phase Replace the compressor NO YES Comp...

Page 406: ...e Must be measured when frequency is stable Unsatisfactory pressure equalization Check refrigerant system Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor YES YES Replace the inverter unit NO NO Reset and restart NO The difference between high and low pressure when starting is less than 2 kg cm 0 196 MPa YES Disconne...

Page 407: ...connected YES Fix the disconnection and turn on again Connect transmission wiring and turn on again NO YES The microcomputer monitor green on the inverter unit is blinking The voltage between red and white of CN on the inverter unit is 220 240 V 50Hz 220 V 60Hz NO Defect of outdoor PC board or defect of inverter unit Check the noise filter Z1F for disconnection and check the power supply wiring or...

Page 408: ... parts damage may be occurred Replace K1M NO Turn on again Replace the outdoor unit PC board Check the transmission wiring between the outdoor unit PC board and inverter unit Monitor field power supply YES Turn K1M ON YES NO Is 220 240 V of power reaching the K1M coil Is 220 240 V at the connector of X1A Replace the inverter unit Replace the inverter unit YES NO NO Does the voltage between termina...

Page 409: ... supply voltage between 3 phases L1 L2 L2 L3 L3 L1 for about one continuous week Open phase Normalize field cause Power supply voltage imbalance Explanation for users Fix power supply voltage imbalance YES YES NO Imbalance in supplied voltage is in excess of 20 V Y1 Open phase When voltage monitoring is possible 1 Measure voltage at the Z1F power supply terminal block L1 L2 L3 N 2 Measure voltage ...

Page 410: ... Controller Display P4 P4 P4 P4 Supposed Causes Defect of radiator fin temperature sensor Defect of inverter unit Troubleshooting VF070 Replace the radiator fin thermistor YES Turn on again after letting 30 minutes or more pass after occurrence of malfunction P4 occurs again Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Page 411: ...on wiring disconnected or wired incorrectly Is the transmission wiring with the master controller disconnected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central PC board Reset power supply si...

Page 412: ...troller Troubleshooting Urban Multi MX1R ME1R Series Using R 407C 391 6 2 PC Board Defect Remote Controller Display M1 M1 M1 M1 Supposed Causes Defect of central remote controller PC board Troubleshooting Replace the central remote controller PC board ...

Page 413: ...turning on off using each optional controllers for centralised control and replace the PC board of the one that is unable to control the indoor unit NO NO Fix the wiring correctly YES YES Has a once connected optional controller for centralised control been disconnected or its address changed Turn on power supply for all optional controllers for centralised control Reset power supply simultaneousl...

Page 414: ...r s individual combined connector and reset the power supply for all optional controllers for centralised control simultaneously Arrange so that the connector for setting master control is connected to one controller for centralised control and reset the power supply for all optional controllers for centralised control simultaneously Disconnect the connector for setting master control from the mas...

Page 415: ...uses Address duplication of central remote controller Troubleshooting Are two or more central remote controllers connected Disconnect all central remote controllers except one and reset the power supply of the central remote controller Reset power supply of the central remote controller NO YES VF074 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may...

Page 416: ...on wiring disconnected or wired incorrectly Is the transmission wiring with the master controller disconnected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central PC board Reset power supply si...

Page 417: ... PACD011001C2 396 Troubleshooting Urban Multi MX1R ME1R Series Using R 407C 7 2 PC Board Defect Remote Controller Display M1 M1 M1 M1 Supposed Causes Defect of schedule timer PC board Troubleshooting Replace the schedule timer PC board ...

Page 418: ...ng on off using each optional controllers for centralised control and replace the PC board of the one that is unable to control the indoor unit NO NO Fix the wiring correctly YES YES Has a once connected optional controller for centralized control been disconnected or its address changed Turn on power supply for all optional controllers for centralised control Reset power supply simultaneously for...

Page 419: ...ter control when the malfunction is cleared is defective and must be replaced Reset the power supply for all optional controllers for centralised control simultaneously Reset the power supply for the schedule timer YES YES NO Is the schedule timer s individual combined connector connected Are there two or more optional controllers for centralised control connected with the connector for setting ma...

Page 420: ...osed Causes Address duplication of optional controllers for centralised control Troubleshooting VF078 Are two or more schedule timers connected Disconnect all schedule timers except one and reset the schedule timer s power supply Reset the power supply for the schedule timer YES NO Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Page 421: ...disconnected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central PC board Reset power supply for all optional controllers for centralised control simultaneously NO YES NO YES YES NO NO Turn the...

Page 422: ...ller s switch for setting each address and reset the power supply of the unified ON OFF controller Refer to failure diagnosis for central remote controller or schedule timer NO YES YES NO NO Fix the wiring correctly Set reset switch to normal Turn on power supply for all optional controller for centralised control NO NO YES YES YES Is the power supply turned on for all optional controllers for cen...

Page 423: ... simultaneously Arrange so that the connector for setting master control is connected to one controller for centralised control and reset the power supply for all optional controllers for centralised control simultaneously Disconnect the connector for setting master control from the master controller connect to another optional controller for centralised control and simultaneously reset all option...

Page 424: ... Is the switch for setting each address set correctly Is the transmission wiring disconnected or wired incorrectly Fix the wiring correctly Replace the PC board of the unified ON OFF controller Set by remote controller the central control address for all indoor units connected to the central control line YES YES NO Set the switch for setting each address correctly and simultaneously reset the powe...

Page 425: ...Troubleshooting OP Unified ON OFF Controller PACD011001C2 404 Troubleshooting Urban Multi MX1R ME1R Series Using R 407C ...

Page 426: ... Combination MA1R Series Using R 407C 405 80 6HULHV 8VLQJ 5073 80 6HULHV 8VLQJ 5073 80 6HULHV 8VLQJ 5073 80 6HULHV 8VLQJ 5073 RPELQDWLRQ RPELQDWLRQ RPELQDWLRQ RPELQDWLRQ 0 45 6HULHV 0 45 6HULHV 0 45 6HULHV 0 45 6HULHV ...

Page 427: ...PACD011001C2 406 UM Combination MA1R Series Using R 407C ...

Page 428: ...ng R 407C 407 3DUW 4 3DUW 4 3DUW 4 3DUW 4 HQHUDO QIRUPDWLRQ HQHUDO QIRUPDWLRQ HQHUDO QIRUPDWLRQ HQHUDO QIRUPDWLRQ 1 Product Outline 408 1 1 Year 2001 Models Using New Refrigerant 408 1 2 Outline of New Series Products 409 1 3 Model Configuration and Combination 411 ...

Page 429: ...O O O O O O O O New model Model Type P20 Type P25 Type P32 Type P40 Type P50 Type P63 Type P80 Type P100 Type P125 Type P200 Type P250 4 way cassette type CS UM O O O O O O O O O 2 way cassette type CS LM O O O O O O O O Corner type CS DM O O O O Built in type CS FM O O O O O O O O O Small duct type CS NM O O Ducted type CS EM O O O O O O O O Ceiling type CS TM O O O Wall type CS KM O O O O O O Fl...

Page 430: ...Methane chlorofluorocarbons and dinitrogen monoxide have similar characteristics When the amounts of these gases in the atmosphere increase heat that normally escapes through the atmosphere remains near the earth s surface thus increasing the temperature of air The degree of the effect to the earth caused by the atmospheric temperature rise due to these gases is numerically expressed by global war...

Page 431: ... setting function Built in wiring error check function Equipped with sequential start function Nighttime low noise mode for reduced operating sound Long refrigerant piping equivalent length of 125 actual length of 100 m and height difference of 50 m Connection of indoor unit of varying capacities and types totaling 130 max of outdoor unit by capacity Outdoor unit name No of indoor units connectabl...

Page 432: ... 8MB1XPK Total number of connectable indoor units Up to 20 units Up to 32 units Total capacity of connectable indoor units 200 520 225 585 250 650 300 780 Standard series Equivalent output 26HP 28HP 30HP R407C Urban Multi Combination series system model PA 26MA1XPK PA 28MA1XPK PA 30MA1XPK Outdoor unit combination Main unit CU 16MA1XPK CU 20MA1XPK CU 20MA1XPK Sub unit CU 10MB1XPK CU 8MB1XPK CU 10MB...

Page 433: ...Product Outline PACD011001C2 412 General Information UM Combination MA1R Series Using R 407C ...

Page 434: ...XQFWLRQ 1 Outdoor Unit Refrigerant System Diagram 414 1 1 Outdoor Unit Refrigerant System Diagram 414 1 2 Flow of Refrigerant in Each Operating Mode 417 2 List of Safety Device and Function Parts Setting Value 421 2 1 Outdoor Unit 421 2 2 Indoor Unit 422 3 Outline of Control 425 3 1 Outdoor Unit 425 3 2 Indoor Unit 445 ...

Page 435: ...ating operation Provides PI control for compressors by detecting high pressure Cooling operation Controls compressors to ensure sufficient high pressure when outside temperature is low T Low pressure sensor SENPL Cooling operation Provides PI control for compressors by detecting low pressure Heating operation Controls motorized valves to maintain constant evaporator superheated degree U High press...

Page 436: ...PACD011001C2 Outdoor Unit Refrigerant System Diagram Function UM Combination MA1R Series Using R 407C 415 PA 16 18 20MA1XPK Y2E Y1E K X Y J 2 S N Q M 8 9 1 U 5 A V 6 B P 11 T O 4 3D024909 SPH SPL ...

Page 437: ...oor Unit Refrigerant System Diagram PACD011001C2 416 Function UM Combination MA1R Series Using R 407C PA 24 26 28 30MA1XPK Y3E Y1E Y2E L Y X J K Q 2 4 10 8 9 M V 6 B 5 U N T 11 A O W 7 C R P S 1 3 3D024910 ...

Page 438: ...oling Operation Heat exchanger Fan Indoor unit Filter Filter Heat exchanger Fan Indoor unit Filter Filter Heat exchanger Fan Indoor unit Filter Filter OIL OIL OIL Fan ON Fan OFF ON Fan ON ON OFF Unit opration V0910 High pressure high temperature gas refrigerant High pressure high temperature liquid refrigerant Low pressure low temperature liquid gas refrigerant ...

Page 439: ...hanger Fan Indoor unit Filter Filter Heat exchanger Fan Indoor unit Filter Filter Heat exchanger Fan Indoor unit Filter Filter OIL OIL OIL Fan ON Fan OFF ON Fan ON ON OFF Unit opration V0911 High pressure high temperature gas refrigerant High pressure high temperature liquid refrigerant Low pressure low temperature liquid gas refrigerant ...

Page 440: ...at exchanger Fan Indoor unit Filter Filter Heat exchanger Fan Indoor unit Filter Filter Heat exchanger Fan Indoor unit Filter Filter OIL OIL OIL Fan ON Fan ON ON Fan ON ON OFF Unit opration V0912 High pressure high temperature gas refrigerant High pressure high temperature liquid refrigerant Low pressure low temperature liquid gas refrigerant ...

Page 441: ...t exchanger Fan Indoor unit Filter Filter Heat exchanger Fan Indoor unit Filter Filter Heat exchanger Fan Indoor unit Filter Filter OIL OIL OIL Fan OFF Fan OFF Fan OFF ON ON OFF Unit opration V0913 High pressure high temperature gas refrigerant High pressure high temperature liquid refrigerant Low pressure low temperature liquid gas refrigerant ...

Page 442: ...nal Parts Electronic Expansion Valve Y1 2E During cooling operating 2000pls Stop 0pls Fully closed During heating operating PI control Stop 0pls Fully closed Y3E During cooling operating 2000pls Stop 0pls Fully closed During cooling operating PI control Stop 0pls Fully closed Solenoid Valve Y1S for Auxiliary condenser NEV202DXF Y2S for Hot gas NEV603DXF Y3S for Injection M1C NEV202DXF Y4S for Inje...

Page 443: ...emote Controller CZ 01RT11P Option Wireless Remote Controller CZ 01RWL12P Option Motors Fan Motor M1F AC 220 240V 50Hz 1φ10W 1φ15W 1φ20W 1φ30W 1φ50W 1φ85W Thermal Fuse 152 C Thermal protector 135 C OFF 87 C ON Motor for Drain Pump M1P AC220 240V 50Hz Thermal Fuse 169 C Swing Motor M1S MT8 L 3PA07509 1 AC200 240V Thermistors Thermistor Suction Air R1T ST8601 16 φ4 L1250 20kΩ 25 C Thermistor for Hea...

Page 444: ...Controller CZ 01RT11P Option Motors Fan Motor M1F AC 220 240V 50Hz 1φ100W 1φ160W 1φ270W 1φ430W 1φ380W 2 Thermal protector 135 C OFF 87 C ON Capacitor for Fan Motor C1R 6µ F 400V 10µ F 400V 10µ F 400V 12µ F 400V Thermistors Thermistor Suction Air R1T ST8601 5 φ4 L1000 20kΩ 25 C ST8601 13 φ4 L630 Thermistor for Heat Exchanger High Temp R3T ST8605 5 φ8 L1000 20kΩ 25 C ST8605 5 φ8 L1000 Thermistor Hea...

Page 445: ...M1HPK CS 63PM1HPK Remote Controller Wired Remote Controller CZ 01RT11P Option Motors Fan Motor M1F AC 220 240V 50Hz 1φ15W 1φ25W 1φ45W Thermal protector 135 C OFF 120 C ON Capacitor for Fan Motor C1R 1 2µF 400V 0 5µF 400V 1 2µF 400V 2µF 400V 2 5µF 400V Thermistors Thermistor Suction Air R1T ST8601 6 φ4 L1250 20kΩ 25 C Thermistor for Heat Exchanger High Temp R3T ST8605 9 φ8 L2500 20kΩ 25 C Thermisto...

Page 446: ...st Tc to achieve target value TcS Tc setting Tc High pressure equivalent saturation temperature C TcS Target Tc value Varies depending on Tc setting operating frequency etc 3 1 2 Motorized Valve PI Control Controls the motorized valves EV1 EV2 EV3 to maintain the outlet superheated degree SH of the outdoor heat exchanger evaporator at constant during heating operation SH Th6 Te Te Low pressure equ...

Page 447: ...ducted for 2 minutes then the defrosting operation is activated 1 Outputs oil return defrost preparation signal to indoor units 2 Turns on the liquid injection solenoid valve SVT based on Td or DSH Td Discharge pipe temperature DSH Discharge super heat temp Liquid injection Refer to page 440 OR When cumulative compressor operating time from power On or completion of previous defrosting operation e...

Page 448: ...ng to 2 Operate all indoor unit EV as follows 1000 pls 50 sec 0 pls 10 sec 4 way valve switching 0 pls 15 sec 5 Signal output during oil return defrosting operation preparation Defrost preparation flag 1 Accumulator discharge operation ending conditions 2 SH control by outdoor unit EV PI control activated when SHS 10 initial opening degree 200 pls In the case of an LP retry the next PI control is ...

Page 449: ...Constant Te control However decrease the target temp for 5 C HP 2 16MPa Constant Te control However decrease the target temp for 5 C HP 2 16MPa HP 2 16MPa Condition A HP 0 78 MPa Ta 5 C Outdoor air temp HP 2 16MPa Step 1 1 Fan Compressor 16 18 20 class H OFF OFF OFF Upper limit 71 Hz OFF 24 26 28 30 class H OFF OFF OFF OFF OFF Upper limit 52 Hz ON OFF HP 1 05 MPa continues for 30 sec HP 1 55 MPa c...

Page 450: ...pacity Control INV Compressor Operating Frequency The operating frequency changes in the following steps O M11F H L OFF M12F OFF M11F OFF M12F ON T fin 87 C T fin 67 C V0820 PA 16 18 20MA PA 24 30MA NO Frequency NO Frequency INV STD INV STD1 STD2 1 29Hz OFF 1 29Hz OFF OFF 2 31Hz OFF 2 31Hz OFF OFF 3 33Hz OFF 3 33Hz OFF OFF 4 35Hz OFF 4 35Hz OFF OFF 5 37Hz OFF 5 37Hz OFF OFF 6 39Hz OFF 6 39Hz OFF O...

Page 451: ...on When a STD compressor changes from OFF to ON due to the compressor PI control or others 41 Hz ON ON is fixed for 30 seconds Regarding the above operation timing the inverter compressor is set to the above frequency 41 Hz first then the STD compressor is started Operation starts when frequency matching signal from inverter is received The STD compressor does not start for 3 seconds if the STD co...

Page 452: ... When all compressors inverter compressor and STD compressors stop operating the thermostats remain in forced OFF condition for 5 minutes Compressor upper limit frequency Capacity reduction guideline Demand control 1 A Reduces power consumption to approx 70 Demand control 2 B Reduces power consumption to approx 40 Demand control 3 All compressors in stop mode Forced thermostat OFF Model Upper limi...

Page 453: ... 5 minutes of restart standby in stop mode When HP LP 0 196MPa compressor turns on V0808 Complete startup control according to 1 Startup controlling control SH according to 2 Cancellation of 0 pulse instruction to indoor EV according to 5 41Hz 52Hz 20 sec delay 30 sec 1 min SC control Max 15min including 5min for restart standby When HP LP 0 196MPa compressor ON Equalization prior to startup Start...

Page 454: ...sting operation preparation and for 10 minutes after the completion of defrosting operation and oil return heating operation For 24 30 class units The oil equalization operation is conducted in the following steps 2 min 2 min 16 20HP model 62Hz OFF 37Hz ON STEP1 STEP2 STEP3 STEP3 1 71Hz ON OFF STEP3 2 41Hz OFF ON STEP3 3 71Hz OFF ON STD1 ON STD2 ON 110 cumulative minutes of above operations TMC ti...

Page 455: ...en condition 1 or 2 is satisfied during heating operation the electric heaters of indoor units are turned off 2 minutes prior in order to prepare for the oil return operation 3 The oil return operation is not activated for 28 minutes after the completion of the previous defrosting operation Oil return operation The compressor operating frequency is set to B Hz shown in the following table Ending c...

Page 456: ...tat ON Outdoor fan Indoor fan 4 way valve OR OR DSHi 20 C 10 continuous seconds Th6 Te 15 C 10 continuous seconds DSHi 30 Th6 Te 10 LP 0 1MPa Elapsed time of 10 minutes B ON OFF by LP Normal control Normal control SH control Control according to Tc 2 min Elapsed time of 8 minutes OR Elapsed time of 1 minute Elapsed time of 1 minute after completion of oil return operation OR 2 Oil return operation...

Page 457: ...completion of oil return operation OR SH control according to 4 30 sec 52Hz OFF 2000pls 500pls OR HP LP 0 5Mpa 9 Completion condition for under preparation of heating oil return 2 Oil return operation ending conditions 3 Accumulator discharge operation ending conditions 4 LPSH control by outdoor unit EV PI control activated when SHS 10 initial opening degree 200 pls In the case of an LP retry the ...

Page 458: ... bypass ON LP 0 08MPa SVP for hot gas bypass OFF SVP for hot gas bypass ON OR Ta Tes 5 LP 0 20MPa 30 sec elapse OR LP 0 13MPa Ta 5 C LP 0 098MPa Ta 5 C OR LP 0 08MPa Ta 5 C LP 0 049MPa Ta 5 C Malfunction reset LP 0 09MPa LP 0 10MPa Monitoring LP every 30 sec LP 0 07MPa Monitoring LP every 1 min Ta Outdoor air temp C Tes Low pressure equivalent saturation temp C Heating mode Cooling mode SVP for ho...

Page 459: ...capacity of 8 0 kW 3HP or less OR Ta 15 C Ta 15 C HP 2 26MPa HP 2 37MPa OR HP 1 70MPa Continues for 300 sec HP 1 54MPa 5 min elapsed after compressor startup 5 min elapsed after defrost completion 5 min elapsed after oil return completion HP 2 37MPa 5 min elapsed after defrost completion 5 min elapsed after oil return completion Normal operation 1 step down for upper limit compressor operation fre...

Page 460: ... control Thermostat ON 2000pls Thermostat OFF 224pls Non operation unit 224pls Thermostat ON Normal control Thermostat OFF 224pls Non operation unit 224pls Thermostat ON Normal control Thermostat OFF 224pls Non operation unit 224pls Thermostat ON Normal control Thermostat OFF Normal control Non operation unit Normal control PI control when SHS 15 PI control when SHS 10 PI control when SHS 5 PI con...

Page 461: ...n before operation start Oil return operation defrosting operation SVTi Y3S is OFF at any case when inverter compressor stops Liquid Injection Control STD Compressor In cooling operation DSHs STD compressor discharge pipe superheated degree Tds1 2 Th3 2 HP equivalent saturation temperature Tds1 2 STD compressor discharge pipe temperature Th3 2 In heating operation Normal operation SVTi ON DSHi 40 ...

Page 462: ... OFF 41Hz OFF OFF 41Hz OFF OFF Normal operation HTdi 110 C HTdi 115 C HTdi 130 C HTdi 105 C Compressor stop for 5 min Forced thermostat OFF F3 Malfunction stop Normal operation HTds1 HTds2 110 C HTds1 HTds2 105 C HTds1 HTds2 130 C Malfunction reset HTdi 115 C HTs1 HTs2 115 C HTdi HTds1 HTds2 130 C V0831 Up to 2 times within 100 min HTdi Adjusted discharge temperature for Inverter Compressor INV Co...

Page 463: ...els gas shortage warning In heating mode Crank case heater OFF Crank case heater ON Outdoor air temp 30 C V0833 Outdoor air temp 27 C OR Compressor stop during the magnet contactor of INV compressor ON The magnet contactor of INV compressor OFF SH1 Evaporator1 outlet superheat degree 20 C Left conditions remain for 60 continuous minutes Outputs gas shortage warning U0 EV1 2000 pls full open SH2 Ev...

Page 464: ...onstant speed compressor protection device operates For 2 compressor system When the STD compressor OC operates the operation continues using only the inverter compressor based on all remote control reset for 3 hours only For 3 compressor system When the STD compressor OC operates the operation continues using compressor except last started STD compressor based on remote control reset for 3 hours ...

Page 465: ...ub Unit Master Unit Sub Unit INV INV 16 20HP 24 30HP V0846 tap 16 20HP 24 30HP M1F M2F M3F M4F M11F M12F M21F M22F M3F M4F OFF OFF OFF OFF OFF OFF OFF OFF OFF OFF 1 L OFF OFF OFF L OFF OFF OFF OFF OFF 2 H OFF OFF OFF H OFF OFF OFF OFF OFF 3 H OFF ON OFF H OFF ON OFF ON OFF 4 H ON ON OFF H ON ON OFF ON OFF 5 H ON ON ON H ON ON ON ON ON Tfin 87 C Tfin 67 C tap 24 30HP M11F M12F M21F M22F M3F M4F OFF...

Page 466: ... OFF buttons 4 button 1 4 given in the figure below When the Float Switch is Tripped While the Cooling Thermostat is ON 1 The objective of residual operation is to completely drain any moisture adhering to the fin of the indoor unit heat exchanger when the thermostat goes off during cooling operation When the Float Switch is Tripped During Cooling OFF by Thermostat ...

Page 467: ... switch is not reset even after the 5 minutes operation 5 seconds stop 5 minutes operation cycle ends operation continues until the switch is reset When the Float Switch is Tripped and AF is Displayed on the Remote Controller Note If the float switch is tripped five times in succession a drain malfunction is determined to have occurred AF is then displayed as operation continues ...

Page 468: ...ure is available on 2 way blow 4 way blow and corner types P0 P1 P2 P4 P3 P0 P1 P2 P4 P3 P0 P0 P1 P2 P4 P4 P2 P1 P0 P4 P4 P3 P2 P1 P0 P3 Existing position Draft prevention position Standard Setting position Ceiling soiling prevention position Draft prevention position Standard position Prohibited Prohibited Dirt prevention position P0 P0 P0 P1 P2 P2 P1 P3 P3 P4 P4 P1 P2 P3 P4 Same as existing posi...

Page 469: ... is near the preset temperature Ex When cooling Assuming the preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 30 C A F This example also assumes there are several other air conditioners the UM series is off and that temperature changes even when the thermostat sensor is off Body thermostat sensor is used for temperatures from 18 C to 23 C A C Remo...

Page 470: ...ote controller can be used so that suction temperature is higher than the preset temperature Ex When heating Assuming the preset temperature in the figure above is 24 C and the suction temperature has changed from 18 C to 28 C A F This example also assumes there are several other air conditioners the UM series is off and that temperature changes even when the thermostat sensor is off Body thermost...

Page 471: ...r drops too low the unit enters freeze prevention operation in accordance with the following conditions and is also set in accordance with the conditions given below Conditions for starting freeze prevention Temperature is 1 C or less for total of 40 min or temperature is 5 C or less for total of 10 min Conditions for stopping freeze prevention Temperature is 7 C or more for 10 min continuously Ex...

Page 472: ...on When Power is Turned On 454 1 3 Outdoor Unit PC Board Ass y 455 1 4 Setting Modes 457 1 5 Cool Heat Mode Selection 464 1 6 Low Noise Operation 469 1 7 Demand Control 470 1 8 Sequential Start 471 1 9 Wiring Check Operation 472 1 10 Additional Refrigerant Charge Operation 473 1 11 Refrigerant Recovery Mode 474 1 12 Indoor Field Setting 475 1 13 Centralised Control Group No Setting 477 1 14 Conten...

Page 473: ...taken control transmission wiring loose screws Piping size presence of thermal insulation Measurement of main power circuit insulation Addition or replenishment of refrigerant as needed Fully open respective stop valves on liquid gas Use a 500V megar tester Be sure to record addition or replenishment VF128 Turn on outdoor unit power Set various selectable modes on outdoor unit PC board Turn on ind...

Page 474: ...check operation Even if it s the heating season set to cooling mode in order to prevent liquid from backing up To enter the test operation mode push the inspection test operation button of the indoor unit remote controller 4 times Push once more to return to the normal operation mode Make sure cold air is coming from the indoor unit Run the indoor units one at a time and make sure that the corresp...

Page 475: ...nit cannot be run for up to 10 minutes to automatically set master power Outdoor unit Warning lamp H2P lights Test lamp H2P blinks Can also be set during operation described above Indoor unit If ON button is pushed during operation described above the operation lamp lights but the compressor does not operate Returns to normal when automatic setting is complete 1 2 3 When an Outdoor Unit or Indoor ...

Page 476: ...PACD011001C2 Test Operation Test Operation UM Combination MA1R Series Using R 407C 455 1 3 Outdoor Unit PC Board Ass y Outdoor Unit ...

Page 477: ...n setting mode switch and LED LED 4 Function of setting between cooling and heating 5 Outdoor unit Capacity setting switch Switches for capacity setting when the outdoor unit PC board is replaced to spare parts PC board Refer table below HAP LED A SERV MON V0836 C H SELECT IN D OUT D SS1 V0838 SS2 B D F H SS3 SS4 SS5 A C E G V0848 SS2 SS3 SS4 SS5 A B C D E F G H PA 16MA1XPK PA 18MA1XPK PA 20MA1XPK...

Page 478: ... Functions of Pushbutton Switches Mode Change MODE TEST C H select SEQ START L N O P IND MASTER SLAVE MODE BS1 SET BS2 RETURN BS3 WIRING CHECK BS4 RESET BS5 H1P H2P H3P H4P H5P H6P H7P IN D UNIT OUT D UNIT C H SELECT SS1 Used to rearrange the addresses in modifying the cabling or increasing the number of indoor units Used to check for wrong cabling Used for field programming Used to change the set...

Page 479: ...n Setting mode 2 Select items with the operation button Select setting items with the operation button Press the RETURN button Press the RETURN button Press the RETURN button Contents displayed Select cool heat run with the operation button Select low noise run with the operation button Press the RETURN button Press the SET button Press the RETURN button Press the RETURN button Select sequential s...

Page 480: ...STER cool heat selection ON low noise OFF sequential start MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P SET MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P C H SELECT SET MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P C H SELECT MODE TEST L N O P SEQ IND MASTER SLAVE START H1P H2P H3P H4P H5P H6P H7P C H SELECT SET SET ...

Page 481: ...heat unified address Low noise demand address Forced fan switch Indoor unit forced operation Frequency fix TE setting TC setting Note 1 Defrost setting Note 1 Air NET address Description Emergency operation when inverter type outdoor unit malfunctions Address for cool heat unified operation Address for low noise demand operation Indoor unit fan turns while unit is stopped Allows operation of indoo...

Page 482: ... operation Allows operation of indoor unit from outdoor unit Indoor unit forced operation 5 S Frequency fix Normal operation Fixes compressor frequency INV 60Hz OFF STD 1 ON OFF STD 2 ON OFF Frequency fix 6 S Address 0 Binary number 1 6 digits 2 31 Address for cool heat unified operation Cool heat unified address 2 S S S S Address 0 Binary number 1 6 digits 2 63 Address for Air Net Air Net address...

Page 483: ...pressure for cooling High Normal factory set Low Defrost temperature setting for defrost Quick defrost Normal factory set Slow defrost EMG emergency operation when malfunction occurs ON OF Push the SET button and match with the LEDs No 1 15 push the RETURN button and enter the data for each setting Data such as addresses and number of units is expressed as binary numbers the two ways of expressing...

Page 484: ...boxes 0 63 units Lower 6 digits No 7 ýOýOýOý Number of connected zone units excluding outdoor and HR boxes 0 63 units Lower 6 digits No 8 ýOýO ýOýOýO Number of outdoor units 0 63 units Lower 6 digits No 9 ýOýOý ýOýOý Number of HR boxes 0 128 units Lower 4 digits upper No 10 ýOýOý ýOý ýO Number of HR boxes 0 128 units Lower 4 digits lower No 11 ýOýOý ýOý Number of zone units excluding outdoor and H...

Page 485: ...system group in accordance with group master outdoor unit by indoor unit remote controller 4 Setting of cool heat by outdoor unit system group in accordance with group master outdoor unit by cool heat selector Each of these setting methods is explained in detail below For 3 and 4 be sure to perform power supply reset after changing settings 1 5 1 Setting of Cool Heat by Individual Outdoor Unit Sys...

Page 486: ...ng R 407C 465 1 5 2 Setting of Cool Heat by Individual Outdoor Unit System by Cool Heat Selector Doesn t matter whether or not there is outdoor outdoor unit wiring Set SS1 of the outdoor unit PC board to OUT D UNIT In setting mode 1 set cool heat selection to IND factory set ...

Page 487: ... to IN D UNIT factory set In setting mode 1 set the outdoor unit you want to give cool heat selection permission to as the group master and set the other outdoor units as group slave units Set SS1 of the BMS interface adaptor for outdoor unit to BOTH factory set or C H Set SS2 to OFF factory set 1 5 4 Setting of Cool Heat by Outdoor Unit System Group in Accordance with Group Master Outdoor Unit by...

Page 488: ...mode 2 Adaptor PCB No 0 Outdoor unit group master No 0 Outdoor unit group slave No 0 Outdoor unit group slave No 0 Cool heat group address llllll DS2 DS1 Adaptor PCB No 1 Outdoor unit group master No 1 Outdoor unit group slave No 1 Cool heat group address lllll DS2 DS1 Adaptor PCB No 2 Outdoor unit group master No 2 Outdoor unit group slave No 2 Outdoor unit group slave No 2 Cool heat group addres...

Page 489: ...Test Operation PACD011001C2 468 Test Operation UM Combination MA1R Series Using R 407C Setting Methed 1 5 3 and 1 5 4 address setting method combine lower 5 digits as binary number ...

Page 490: ...trol Operation 1 Outdoor unit field setting Setting mode 1 Set low noise operation to ON Setting mode 2 Match low noise operation and demand control address with address of BMS interface adaptor for outdoor unit 2 BMS interface adaptor for outdoor unit setting Function switch SS1 Set to BOTH or DE Address setting switches DS1 DS2 Match with outdoor unit low noise operation and demand control addre...

Page 491: ...ntrol Operation 1 Outdoor unit field setting Setting mode 1 Set low noise operation to ON Setting mode 2 Match low noise operation and demand control address with address of BMS interface adaptor for outdoor unit 2 BMS interface adaptor for outdoor unit setting Function switch SS1 Set to BOTH or DE Address setting switches DS1 DS2 Match with outdoor unit low noise operation and demand control addr...

Page 492: ...ntial start of up to 10 outdoor units If you want to carry out sequential start connect outdoor unit outdoor unit transmission wiring as shown below The outdoor unit PC board EC is factory set to sequential start ON In the case of power supply in the same line 8 10HP outdoor unit Power supply Power supply Power supply Power supply System 8 System 1 System 7 System 6 System 5 System 4 System 3 Powe...

Page 493: ... to perform wiring check operation While running TEST H2P lights and goes off when finished If TEST H2P flickers wiring check operation failure push and hold the RESET button BS5 for 5 seconds and then repeat the procedure from the beginning 3 About 1 minute after you finish running the system once again check the number of connected indoor units in the monitor mode and make sure the number agrees...

Page 494: ...eration When the Confirmation button is pressed during additional refrigerant charge operation the operation stops 5 Disconnect the refrigerant charge hose then fully open the liquid side stop valve In service mode 1 press the MODE button for 5 seconds to enter service mode 2 8 7 7 7 7 7 7 Press the SET button to set the LED indicators to the additional refrigerant charge operation indication 8 7 ...

Page 495: ... switch of the other unit within 10 minutes 4 Conduct refrigerant recovery 5 Cancel the setting in the setting mode or cancel the mode by conducting power reset of the outdoor unit In service mode 1 press the MODE button for 5 seconds to enter service mode 2 8 7 7 7 7 7 7 Press the SET button to set the LED indicators to the refrigerant recovery mode indication 8 7 8 7 8 7 8 Press the RETURN butto...

Page 496: ... set Note This operation is not required when setting as a group 4 Push the button and select the first code No 5 Push the button and select the second code No 6 Push the timer button one time and define the currently set contents 7 Push the button to return to the normal mode Example When setting the filter sign time to Filter Dirtiness High in all group unit setting set the Mode No to 10 Mode se...

Page 497: ...ime to clean air filter calculation Set when filter sign is not to be displayed Display No display 12 22 0 Optional accessories output selection field selection of output for adaptor for wiring Indoor unit turned ON by thermostat Operation output Malfunctionoutput 1 ON OFF input from outside Set when ON OFF is to be controlled from outside Forced OFF ON OFF control External protection device 2 The...

Page 498: ...controller displays only the group No within the range selected by the switch for setting each address 5 Push the timer button to define the selected group No 6 Push the button to return to the normal mode Even if not using a remote controller connect the remote controller when setting the group No set the group No for centralized control and disconnect after making the setting Set the group No af...

Page 499: ...while 88 is displaying after all indications were displayed once for about 1 minute on the liquid crystal display This is not an operative fault Centoral Remote Controller F1 F2 F1 F2 F1 F2 F1 F2 P1 P2 RC RC RC RC RC F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 F1 F2 P1 P2 No Remote Controller Group Control by Remote Contoller autmatic unit address 1 03 1 00 1 01 Main Su...

Page 500: ...ge of the table below Do not select timer operation possible by remote controller if not using a remote controller Operation by timer is impossible in this case 1 Factory setting ON by remote controller Unified ON by central remote controller OFF by remote controller Unified OFF by central remote controller Temperature control by remote controller Operation mode setting by remote controller OFF by...

Page 501: ...Test Operation PACD011001C2 480 Test Operation UM Combination MA1R Series Using R 407C ...

Page 502: ...f Thermistor R2T for Liquid Pipe 506 3 10 Indoor Unit Malfunction of Thermistor R3T for Gas Pipes 507 3 11 Indoor Unit Malfunction of Thermistor R1T for Air Inlet 508 3 12 Indoor Unit Malfunction of Thermostat Sensor in Remote Controller 509 3 13 Outdoor Unit Actuation of Safety Device 510 3 14 Outdoor Unit PC Board Defect 511 3 15 Outdoor Unit Actuation of High Pressure Switch 512 3 16 Outdoor Un...

Page 503: ...Board 539 5 6 Power Supply Insufficient or Instantaneous Failure 540 5 7 Outdoor Unit Inverter Over Ripple Protection 541 5 8 Outdoor Unit Malfunction of Inverter Radiating Fin Temperature Rise Sensor 542 6 Troubleshooting OP Central Remote Controller 543 6 1 Malfunction of Transmission Between Central Remote Controller and Indoor Unit 543 6 2 PC Board Defect 544 6 3 Malfunction of Transmission Be...

Page 504: ...an M1F OFF Louver M1S OFF Drain up kit M1P OFF Humidifier Hu OFF Electronic expansion valve Y1E Closed Optional auxiliary electric heater K1R OFF Depress reset Operation ON OFF switch Operation display lamp ON Air flow rate setting display ON Air flow direction setting display ON Temperature setting display ON Indicates previous settings for air flow rate and direction and temperature NO ON OFF YE...

Page 505: ... of air flow Drain up kit M1P OFF after 5 minutes residual operation Frost prevention operation in progress Test run in progress Thermostat status Drain up kit M1P ON OFF Drain up kit M1P OFF after 5 minutes residual operation Electronic expansion valve Y1E OFF Thermostat on operation signal to outdoor unit Cancelled Electronic expansion valve Y1E Capacity control Thermostat ON operation signal to...

Page 506: ...tus Preset temperature during programme dry operation Fan in operation Swing flap Air flow direction setting Swing flap Fan MF Operating at set air flow rate Electronic expansion valve Y1E closed Drain up kit M1P OFF Auxiliary electric heater K1R OFF Humidifier Hu OFF A 10 11 9 No YES Option VF024 9 Fan operation When fan operation has been selected using the remote controller operation is turned ...

Page 507: ...ctric heater K1R ON Humidifier Hu ON Fan M1F Operating at set air flow volume Fan M1F L operation Fan M1F OFF Electronic expansion valve Y1E capacity contorol Electronic expansion valve Y1E capacity contorol Electronic expansion valve Y1E open Auxiliary electric heater K1R OFF Humidifier Hu OFF NO NO NO YES YES NO YES YES YES 13 12 14 15 12 NO Low discharge air temperature protection YES NO Option...

Page 508: ...hooting UM Combination MA1R Series Using R 407C 487 14 Thermostat status 15 Low discharge air temperature protection Protection is effected when the preset temperature is 24 C or lower and the opening of the electronic expansion valve is slight ...

Page 509: ...Inspection Test Operation button for more than 4 seconds Press Inspection Test Operation button once Press Inspection Test Operation button once Or after 30 minutes After 10 seconds Press Inspection Test Operation button once Press Inspection Test Operation button once Indoor unit settings can be made Filter sign time Air flow direction Others Following codes can be checked Malfunction codes Indoo...

Page 510: ...operation stops due to malfunction the remote controller s operation LED blinks and malfunction code is displayed Even if stop operation is carried out malfunction contents are displayed when the inspection mode is entered The malfunction code enables you to tell what kind of malfunction caused operation to stop See page 496 for malfunction code and malfunction contents ...

Page 511: ...rt beeps Conduct all of the following operations 1 short beep Conduct steps 3 and 4 Continue the operation in step 4 until a buzzer remains ON The continuous buzzer indicates that the malfunction code is confirmed Continuous beep No abnormality 3 Press the MODE selector button The left 0 upper digit indication of the malfunction code flashes 4 Malfunction code upper digit diagnosis Press the UP or...

Page 512: ...PACD011001C2 Troubleshooting by Remote Controller Troubleshooting UM Combination MA1R Series Using R 407C 491 The lower digit of the code changes as shown below when the UP and DOWN buttons are pressed ...

Page 513: ...Troubleshooting by Remote Controller PACD011001C2 492 Troubleshooting UM Combination MA1R Series Using R 407C ...

Page 514: ...type code Model CS KM CS LM CS DM CS UM CS TM CS FM CS PM CS EM Type UM Inverter MX1R Series UM Combination MA1R Series Using R407C Display A A 1 A A 3 Outdoor model code Model CU MX PA MA Unit Malfunction code Inspection Normal display No display 0 L 0 Malfunction code blinks when a malfunction occurs Unit Malfunction code Inspection Inspection mode Push the button Inspection test operation Push ...

Page 515: ...ct the unit No For group control only Select the indoor unit No to be set with the time mode For wireless remote controller button 3 Make the settings required for each mode Modes 41 44 45 In case of Mode 44 45 push the timer button to be able to change setting before setting work LCD code blinks For details refer to the table in next page 4 Define the setting contents Modes 44 45 Define by pushin...

Page 516: ...fan ON by each unit When you want to search for the unit No By selecting the unit No with the button you can turn the fan of each indoor unit on forced ON individually 44 Individual setting Set the fan speed and air flow direction by each unit Select the unit No with the time mode button Set the fan speed with the button Set the air flow direction with the button 45 Unit No transfer Transfer unit ...

Page 517: ... filter maintenance AJ 9 9 9 Malfunction of capacity determination device 505 C4 9 9 9 Malfunction of thermistor R2T for liquid pipe loose connection disconnection short circuit failure 506 C5 9 9 9 Malfunction of thermistor R3T for gas pipes loose connection disconnection short circuit failure 507 C9 9 9 9 Malfunction of thermistor R1T for air inlet loose connection disconnection short circuit fa...

Page 518: ...en remote controller and indoor unit 525 U5 7 8 7 Failure of remote controller PC board or setting during control by remote controller U7 9 9 9 Malfunction of transmission between indoor units Malfunction of transmission between outdoor units malfunction of transmission between outdoor unit and ice build up heat unit U7 8 7 9 Malfunction of transmission between outdoor units cool heat unified low ...

Page 519: ...Troubleshooting VF029 Indoor unit PC board replacement Actuation of external protection device Change the second code No to 01 or 02 External protection device is connected to terminals T1 and T2 of the indoor unit terminal block ON OFF input from outside mode No 12 first code No 1 has been set to external protection device input second code No 03 by remote controller YES NO NO YES Caution Be sure...

Page 520: ...pposed Causes Defect of indoor unit PC board Troubleshooting Turn power supply OFF then power ON again Does the system return to normal YES External factor other than malfunction for example noise etc Replace the indoor unit PC board V0816 NO Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Page 521: ... float switch and turn on again YES YES YES YES Defect of indoor unit PC board Loose connection of connector NO NO NO YES YES NO NO YES NO YES NO NO The float switch is connected to X18A of the indoor unit PC board NO The drain pump works when the power supply is reset for the indoor unit The drain pump is connected to X25A or terminals X8S and X9S of the indoor unit PC board The voltage of termin...

Page 522: ...eshooting Connect the wiring and turn on again Fix the wiring and turn on again YES NO NO NO YES YES Replace the indoor unit PC board Replace the fan motor Is the wiring from the fan motor securely connected to X4A and X5A on the indoor unit PC board Wiring between the indoor unit PC board and fan motor is disconnected Does the fan motor run VF031 Caution Be sure to turn off power switch before co...

Page 523: ... board NO NO YES NO YES NO YES YES NO Indoor unit is a model equipped with a swing flap function The swing motor works when the power supply is turned off and then back on When the air flow direction flap s cam mechanism is disconnected from the swing motor operation is normal when turned on again The connecting cable has no continuity After turning the swing flap ON and then stopping with the rem...

Page 524: ...cting turn the power supply off and then back on Replace the moving part of the electronic expansion valve YES YES NO NO Replace the connecting cable If you turn the power supply off and turn on again and it still does not help replace the indoor unit PC board NO YES The electronic expansion valve is connected to X7A of the indoor unit PC board Normal when coil check 1 of the moving part of the el...

Page 525: ...f drain pipe upward slope etc Defect of indoor unit PC board Troubleshooting Defect of indoor unit PC board Modify the drain piping YES YES Check if the humidifier unit is leaking NO NO Field drain piping has a defect such as upward sloping A humidifier unit optional accessory is installed on the indoor unit VF034 Caution Be sure to turn off power switch before connect or disconnect connector or p...

Page 526: ...efect of indoor unit PC board Troubleshooting VF035 Install a capacity setting adaptor Replace the indoor unit PC board NO NO YES YES Replace the indoor unit PC board The indoor unit PC board was replaced with a replacement PC board The indoor unit is a model that requires installation of a capacity setting adaptor when replacing the PC board Caution Be sure to turn off power switch before connect...

Page 527: ...f indoor unit PC board Troubleshooting VF036 Replace the indoor unit PC board Connect the thermistor and turn on again NO NO Replace the thermistor R2T YES YES Connector is connected to X12A of the indoor unit PC board Resistance is normal when measured after disconnecting the thermistor R2T from the indoor unit PC board 3 5kΩ 360kΩ Caution Be sure to turn off power switch before connect or discon...

Page 528: ...ct of indoor unit PC board Troubleshooting VF037 Replace the indoor unit PC board Connect the thermistor and turn on again NO NO Replace the thermistor R3T YES YES Connector is connected to X11A of the indoor unit PC board Resistance is normal when measured after disconnecting the thermistor R3T from the indoor unit PC board 0 6kΩ 360kΩ Caution Be sure to turn off power switch before connect or di...

Page 529: ...ect of indoor unit PC board Troubleshooting Replace the indoor unit PC board Connect the thermistor and turn on again NO NO Replace the thermistor R1T YES YES Connector is connected to X13A of the indoor unit PC board Resistance is normal when measured after disconnecting the thermistor R1T from the indoor unit PC board 7 2kΩ 112kΩ VF038 Caution Be sure to turn off power switch before connect or d...

Page 530: ...uses Defect of remote controller thermistor Defect of remote controller PC board Troubleshooting Turn power supply OFF then power ON again Is CJ displayed on the remote controller YES Replace remote controller External factor other than equipment malfunction for example noise etc VF039 NO Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurre...

Page 531: ...ct of capacitor etc VF040 Connector or terminal is connected to X8A X9A of the outdoor unit PC board A1P and X1S X2S Contacts F2C X1S X2S are open Connect the connector or terminal and turn on again Actuation of magnet switch OC for standard compressor 1 Actuation of fan motor safety thermostat 2 YES NO NO YES Contact Q1M X8A or Q2M X9A is open NO YES Operation is normal when turned on again by re...

Page 532: ...ng Troubleshooting UM Combination MA1R Series Using R 407C 511 3 14 Outdoor Unit PC Board Defect Remote Controller Display E1 Supposed Causes Defect of outdoor unit PC board A1P Troubleshooting Replace outdoor unit PC board A1P ...

Page 533: ... The outdoor unit PC board s connector is disconnected Is the outdoor unit heat exchanger dirty Defect of outdoor fan Is the refrigerant over charged Operation is normal when turned on again by remote controller Replace outdoor unit PC board A1P Actuation of high pressure switch 1 YES YES There was an instantaneous power failure or a past safety device actuated Re check refrigerant system NO NO VF...

Page 534: ...int 2 Refer to pressure sensor pressure voltage characteristics table on P587 VF042 Low pressure at stop due to malfunction is 0 0 MPa Measure the voltage VL of X21A pin No 2 3 of outdoor PC board A1P 1 Is the relationship between low voltage and VL normal Refrigerant shortage refrigerant system clogging wiring and piping wrong connection Replace the low pressure sensor Replace outdoor unit PC boa...

Page 535: ...nector pins Normal Continuity Approx 300Ω Continuity Approx 150Ω No continuity VF043 Electronic expansion valve is connected to X12A of outdoor unit PC board A1P Normal when coil check 1 of the moving part of the electronic expansion valve is checked The connecting cable is short circuited or disconnected Replace the connecting cable Replace outdoor unit PC board A1P NO NO NO Replace the moving pa...

Page 536: ...ong connection of the injection solenoid valves Y3S Y4S and Y5S Is there a wrong connection of the discharge pipe thermistor R3 1 11 T inverter side X16A R3 2 12 T standard side X17A and R3 13T standard side X21A for 24 30 class Are the characteristics of the discharge pipe thermistor normal R3 1T R3 2T or R3 11T 13T For the characteristics table Replace outdoor unit PC board A1P or A3P for 24 30 ...

Page 537: ...shooting The alarm indicator is displayed when the fan only is being used also VF045 Resistance is normal when measured after disconnecting the thermistor R1T from the outdoor unit PC board 3 5kΩ 360kΩ Connector is connected to X20A of outdoor PC board A1P Replace outdoor unit PC board A1P Connect the thermistor and turn on again NO NO Replace the thermistor R1T YES YES Caution Be sure to turn off...

Page 538: ...being used also Note 16 20 HP class R3 1T R3 2T A1P 24 30 HP class R3 11T R3 12T A1P R3 13T A3P VF046 Resistance is normal when measured after disconnecting the thermistor R3 1 11 T R3 2 12 T or R3 13T from the indoor unit PC board 3 5kΩ 400kΩ Replace outdoor unit PC board A1P or A3P Connect the thermistor and turn on again NO NO Replace the thermistor R3 1 11 T R3 2 12 T or R3 13T YES YES Connect...

Page 539: ... being used also Note 16 20HP class R4 1T R4 2T A1P 24 30HP class R4 11T R4 12T A1P R4 13T A3P VF047 Resistance is normal when measured after disconnecting the thermistor R4 1 11 T R4 2 12 T or R4 13T from the indoor unit PC board 3 5kΩ 360kΩ Replace outdoor unit PC board A1P or A3P Connect the thermistor and turn on again NO NO Replace the thermistor R4 1 11 T R4 2 12 T or R4 13T YES YES Connecto...

Page 540: ...being used also Note 16 20HP class R2 1T R2 2T A1P 24 30HP class R2 11T R2 12T A1P R2 13T A3P VF048 Resistance is normal when measured after disconnecting the thermistor R2 1 11 T R2 2 12 T or R2 13T from the indoor unit PC board 3 5kΩ 360kΩ Replace outdoor unit PC board A1P or A3P Connect the thermistor and turn on again NO NO Replace the thermistor R2 1 11 T R2 2 12 T or R2 13T YES YES Connector...

Page 541: ...t point 2 Refer to pressure sensor pressure voltage characteristics table on P587 VF049 The relationship between the VH and high pressure is normal see 2 when voltage is measured between X22A pins 1 and 3 of outdoor unit PC board A1P see 1 Replace the high pressure sensor Connect the high pressure sensor and turn on again NO NO Replace outdoor unit PC board A1P YES YES The high pressure sensor is ...

Page 542: ...oint 2 Refer to pressure sensor pressure voltage characteristics table on P587 VF050 The relationship between the VH and low pressure is normal see 2 when voltage is measured between X21A pins 2 and 3 of outdoor unit PC board A1P see 1 Replace the low pressure sensor Connect low pressure sensor property and restart system NO NO Replace outdoor unit PC board A1P YES YES The low pressure sensor is c...

Page 543: ...stor R4T and coil thermistor R2T disconnected from the outdoor unit PC board Refrigerant shortage or refrigerant system is clogged Requires check of refrigerant system Replace the thermistor Replace the outdoor unit PC board A1P YES NO NO Refrigerant shortage or refrigerant system is clogged Requires check of refrigerant system Replace low outdoor unit PC board YES YES NO Cooling Low pressure is 1...

Page 544: ... VF053 Operation is normal if one place of power supply line phase is replaced Fix the open phase Requires inspection of field power supply section Negative phase Disposal of the problem is completed by phase replacement Replace outdoor unit PC board A1P YES YES NO NO There is an open phase at the power supply terminal section X1M of the outdoor unit Caution Be sure to turn off power switch before...

Page 545: ...e indoor outdoor unit transmission wiring YES NO NO YES Has the indoor or outdoor unit PC board been replaced or has the indoor outdoor or outdoor outdoor unit transmission wiring been modified All indoor unit remote controllers of the same refrigerant system display U4 NO Outdoor unit PC board microcomputer monitor HAP blinks NO NO Operation ready lamp H2P is blinking Is indoor outdoor and outdoo...

Page 546: ...one remote controller to SLAVE turn the power supply off once and then back on There is possibility of malfunction caused by noise Check the surrounding area and turn on again NO NO Using 2 remote controllers control All indoor PC board microcomputer monitors blink YES Multi core cable is used for the indoor unit remote controller transmission wiring Operation returns to normal when the power is t...

Page 547: ... Cool heat selection is unified C H SELECT is set to MASTER NO Is the indoor outdoor unit transmission wiring normal C H SELECT is set to SLAVE YES NO Check and see if the following items are normal NO Does a malfunction occur when the cool heat selector is set to IND YES Set C H SELECT to IND The cool heat unified address for outdoor units in outdoor outdoor unit transmission is duplicated Set th...

Page 548: ...controller PC board Troubleshooting VF057 SS1 of both remote controllers is set to SUB Set SS1 to MAIN the power supply off once and then back on Set one remote controller to MAIN the power supply off once and then back on Turn the power off and then back on If a malfunction occurs replace the remote controller PC board YES YES YES NO NO NO Using 2 remote controllers control SS1 of remote controll...

Page 549: ...to failure diagnosis for U5 malfunction code Re diagnose by display after passage of 2 minutes or more NO NO Refer to failure diagnosis for U4 malfunction code YES YES U9 has been displayed for 2 minutes or more NO Turn on all indoor units Refer to failure diagnosis for A1 malfunction code NO YES The A1 display blinks on the remote controllers of other units within the same refrigerant system Refe...

Page 550: ...ds on the type of outdoor unit PA 16 18 20MA1XPK 20 units PA 24 30MA1XPK 32 units VF059 The total of indoor units displaying UA and indoor units connected to the same refrigerant system is 20 or 32 units or less Replace outdoor unit PC board A1P Normal NO NO There are too many indoor units within the same refrigerant system Push and hold the RESET button on the outdoor unit PC board for 5 seconds ...

Page 551: ...controller Defect of indoor unit PC board Troubleshooting VF060 Replace indoor unit PC board Address duplication of central remote controller The setting must be changed so that the central remote control address is not duplicated YES NO Optional controllers for centralized control are connected to the indoor unit Caution Be sure to turn off power switch before connect or disconnect connector or p...

Page 552: ...more than 12 hours or if it is not carried out after running all connected indoor units in the fan mode for at least an hour VF061 Is indoor outdoor and outdoor outdoor unit transmission wiring normal Replace indoor unit PC board Wiring check may not have been carried out successfully After fixing incorrect wiring push and hold the RESET button on the outdoor unit PC board for 5 seconds YES NO YES...

Page 553: ...y being introduce for the first time after installation or after an indoor or outdoor unit PC board has been replaced Is indoor outdoor and outdoor outdoor unit transmission wiring normal YES Normal NO Does a malfunction occur NO Does a UH malfunction occur for all indoor units in the system YES NO Does a malfunction occur even after 12 minutes elapses from the time when electricity is introduced ...

Page 554: ... power unit Other L4 Radiator fin temperature rise Is the intake port of the radiator fin clogged L5 Instantaneous over current Inspect the compressor L8 Electronic thermostat Inspection the compressor and refrigerant system L9 Stall prevention Inspection the compressor and refrigerant system LC Malfunction of transmission between inverter PC board and outdoor unit PC board Inspect the connectionb...

Page 555: ...y merely entering the five minutes standby while retry is attempted the prescribed number of times If the number of retry times is exceeded within 60 minutes malfunction is ascertained and the corresponding malfunction code is displayed on the indoor unit remote controller 9 Blink 8 On 7 Off LED A 1 2 3 4 Malfunction contents Retry times 9 7 7 7 7 Normal 9 7 7 7 8 Malfunction of fin thermistor 3 9...

Page 556: ... of fin thermistor Troubleshooting VF063 Characteristic check of the radiator fin thermistor Refer to thermistor characteristics table Defect of power unit radiation Air intake port is clogged Radiator fin is dirty Outdoor temperature is high NO Replace the thermistor YES Abnormal Is reset possible Reset and operate Normal Replace the inverter unit NO YES Temperature of the radiator fin rises Actu...

Page 557: ...nverter output voltage is not balanced Normal if within 8V Note Must be measured when frequency is stable Replace the compressor Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor NO Replace the inverter unit YES YES Correct power supply YES The compressor s coil is disconnected or the insulation is defective NO NO Dis...

Page 558: ...le Compressor overload Inspection of the compressor and refrigerant system is required Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor NO Replace the inverter unit YES NO Reset and restart NO The secondary current of the inverter is higher than 27 5A for each phase Replace the compressor NO YES Compressor inspection...

Page 559: ...e measured when frequency is stable Unsatisfactory pressure equalization Check refrigerant system Compressor inspection Inspect according to the diagnosis procedure for odd noises vibration and operating status of the compressor YES Replace the inverter unit NO NO Reset and restart NO The difference between high and low pressure when starting is 2 kg cm2 0 196 MPa YES YES Disconnect the connection...

Page 560: ...Connect transmission wiring and turn on again NO YES The microcomputer monitor green on the inverter unit is blinking The voltage between red and white of CN on the inverter unit is 220 240 V 50Hz NO Defect of outdoor PC board or defect of inverter unit Check the noise filter Z1F for disconnection and check the power supply wiring or the inverter unit Replace inverter PC board When the LC malfunct...

Page 561: ...on wiring between the outdoor unit PC board and inverter unit Monitor field power supply YES Turn K1M ON YES NO Is 220 240 V of power reaching the K1M coil Is 220 240 V at the connector of X1A Replace the inverter unit Replace the inverter unit YES NO NO Does the voltage between terminals P and N gradually rise to 339 VDC 3φ 380 415V after turning on U2 blinks again The voltage between the P and N...

Page 562: ...ower supply voltage record power supply voltage between 3 phases L1 L2 L2 L3 L3 L1 for about one continuous week Open phase Normalize field cause Power supply voltage imbalance Explanation for users Fix power supply voltage imbalance YES YES NO Imbalance in supplied voltage is in excess of 20 V 3φ 380 415V 1 Open phase When voltage monitoring is possible 1 Measure voltage at the X1M power supply t...

Page 563: ...uses Defect of radiator fin temperature sensor Defect of inverter unit Troubleshooting VF070 After resetting restart YES YES Is the resistance of thermistor correct Is the resetting possible Replace radiation fin thermistor Measure the resistance of radiation fin thermistor NO Replace inverter PC board NO Caution Be sure to turn off power switch before connect or disconnect connector or parts dama...

Page 564: ...ring disconnected or wired incorrectly Is the transmission wiring with the master controller disconnected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central PC board Reset power supply simulta...

Page 565: ... PACD011001C2 544 Troubleshooting UM Combination MA1R Series Using R 407C 6 2 PC Board Defect Remote Controller Display M1 Supposed Causes Defect of central remote controller PC board Troubleshooting Replace the central remote controller PC board ...

Page 566: ...ng on off using each optional controllers for centralised control and replace the PC board of the one that is unable to control the indoor unit NO NO Fix the wiring correctly YES YES Has a once connected optional controller for centralised control been disconnected or its address changed Turn on power supply for all optional controllers for centralised control Reset power supply simultaneously for...

Page 567: ...dividual combined connector and reset the power supply for all optional controllers for centralised control simultaneously Arrange so that the connector for setting master control is connected to one controller for centralised control and reset the power supply for all optional controllers for centralised control simultaneously Disconnect the connector for setting master control from the master co...

Page 568: ...ddress duplication of central remote controller Troubleshooting Are two or more central remote controllers connected Disconnect all central remote controllers except one and reset the power supply of the central remote controller Reset power supply of the central remote controller NO YES VF074 Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be oc...

Page 569: ...ing disconnected or wired incorrectly Is the transmission wiring with the master controller disconnected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central PC board Reset power supply simultan...

Page 570: ...isplay M1 Supposed Causes Defect of schedule timer PC board Troubleshooting Reset power supply Does the system return to normal YES External factor other than equipment malfunction noise etc Replace the schedule timer PC board V0843 NO Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Page 571: ...off using each optional controllers for centralised control and replace the PC board of the one that is unable to control the indoor unit NO NO Fix the wiring correctly YES YES Has a once connected optional controller for centralised control been disconnected or its address changed Turn on power supply for all optional controllers for centralised control Reset power supply simultaneously for all o...

Page 572: ...st be replaced Reset the power supply for all optional controllers for centralized control simultaneously YES YES NO Is the schedule timer connected Are there two or more optional controllers for centralized control connected with the connector for setting master control YES Is the schedule timer s individual combined connector connected NO NO Cannot be used in combination with a BMS interface ada...

Page 573: ...auses Address duplication of optional controllers for centralised control Troubleshooting VF078 Are two or more schedule timers connected Reset the power supply for the schedule timer Disconnect all schedule timers except one and reset the schedule timer s power supply YES NO Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred ...

Page 574: ...oller disconnected or wired incorrectly Is the master controller s connector for setting master controller disconnected Set the group No correctly Replace indoor unit PC board Fix the wiring correctly Fix the wiring correctly Connect the connector correctly Replace the central PC board Reset power supply for all optional controllers for centralised control simultaneously NO NO YES NO YES YES NO Tu...

Page 575: ...ler s switch for setting each address and reset the power supply of the unified ON OFF controller Refer to failure diagnosis for central remote controller or schedule timer NO YES YES NO NO Fix the wiring correctly Set reset switch to normal NO NO YES YES YES Is the power supply turned on for all optional controllers for centralised control Reset power supply simultaneously for all optional contro...

Page 576: ...simultaneously Arrange so that the connector for setting master control is connected to one controller for centralised control and reset the power supply for all optional controllers for centralised control simultaneously Disconnect the connector for setting master control from the master controller connect to another optional controller for centralised control and simultaneously reset all optiona...

Page 577: ...Is the switch for setting each address set correctly Is the transmission wiring disconnected or wired incorrectly Replace the PC board of the unified ON OFF controller Fix the wiring correctly Set by remote controller the central control address for all indoor units connected to the central control line YES YES NO Set the switch for setting each address correctly and simultaneously reset the power...

Page 578: ...s Using R 407C 557 3DUW 8 3DUW 8 3DUW 8 3DUW 8 6SHFLDO 6HUYLFH 0RGH 6SHFLDO 6HUYLFH 0RGH 6SHFLDO 6HUYLFH 0RGH 6SHFLDO 6HUYLFH 0RGH 1 Backup and Emergency Operation 558 1 1 Backup and Emergency Operation 558 2 Pump Down Operation 560 2 1 Pump Down Operation 560 ...

Page 579: ...ller For the reason described above after about 3 hours of backup operation the system again carries out malfunction detection and the system once again stops due to malfunction if an error is detected Note 1 For 2 compressor system When the STD compressor OC operates the operation continues using only the inverter compressor based on remote control reset for 3 hours only For 3 compressor system W...

Page 580: ...door unit are turned on by thermostat Emergency operation stops at the following conditions 1 Emergency operation mode is reset on outdoor unit PC board or 2 One or more indoor units connected to this outdoor unit are turned off by thermostat Setting of Emergency Mode Setting Method LED Display H1P H2P H3P H4P H5P H6P H7P Hold down the Mode button for 5 seconds to change to setting Mode 2 8 7 7 7 ...

Page 581: ...s 3 After unit stopping shut the stop valve of the gas pipe Setting of Pump Down Mode Setting Method LED Display H1P H2P H3P H4P H5P H6P H7P Hold down the Mode button for 5 seconds to change to setting Mode 2 8 7 7 7 7 7 7 Push SET button and select LED display to Pump down operation 8 7 7 8 8 8 7 Push the RETURN button 8 7 7 7 7 7 9 Push SET button and select LED display as shown right 8 7 7 7 7 ...

Page 582: ...nsor 587 3 4 Method of Replacing The Inverter s Power Transistors and Diode Modules 588 4 Precaution 590 4 1 PC Boards and Remote Controller s Mode No 590 5 Typical Wiring Mistakes 591 5 1 Typical Wiring Mistakes 591 6 Interface Adaptor 598 6 1 BMS Interface Adaptor for Unified Group KRP2A51 52 598 6 2 BMS Interface Adaptor for Individual and Unified Control KRP4A51 KRP4A52 KRP4A53 603 6 3 Signal ...

Page 583: ...F1S C2R Z2F POWER MODULE R1T THERMISTOR SUCTION Y1R MOTOR COMPRESSOR INV FIELD FUSE K2R K3R MAGNETIC RELAY A2P SOLENOID VALVE HOT GAS SOLENOID VALVE INJECTION M1C 4 WAY VALVE THERMAL PROTECTOR KLIXON MF1 RESISTOR BS1 5 C1R 3R DM F1C R2T R1 4 SENPL R1V SD F1S COMPRESSOR CONTACTOR M1C HWL J1HC FUSE 250V 10A Z1 3F R1T NOISE FILTER TRIAC K1M SURGE ARRESTER POWER CIRCUIT PC SS1 SAFETY DEVICES INPUT Q1M...

Page 584: ...2P Z2F R1V F1S C4R C3R F2C K2M C1R C2R Z1F A1P Z3F A3P T1R SWITCH BOX LEFT INVERTER BOX RIGHT X10A S2PH X11A X1S X2S F2C X8A Q1M X9A Q2M S1PH CAPACITOR MODE SET RETURN WIRING CHECK RESET PRINTED CIRCUIT BOARD J1HC J2HC PUSH BUTTON SWITCH DC CURRENT TRANSFORMER REACTOR HWL H1P 7P OVER CURRENT RELAY M2C F6U F1U F2U F2C F1S C1R 4R THERMAL PROTECTOR KLIXON MF1 MF2 4 WAY VALVE SOLENOID VALVE INJECTION ...

Page 585: ...Wiring Diagrams Outdoor Unit PACD011001C2 564 Appendix 1 2 ME1 Series Heat Recovery CU 8 10ME1XPA ...

Page 586: ...PACD011001C2 Wiring Diagrams Outdoor Unit Appendix 565 CZ 100 160HR1HE ...

Page 587: ...COMPRESSOR INV FIELD FUSE K2R K3R MAGNETIC RELAY A2P SOLENOID VALVE HOT GAS SOLENOID VALVE INJECTION M1C 4 WAY VALVE THERMAL PROTECTOR KLIXON MF1 RESISTOR BS1 5 C1R 3R DM F1C R2T R1 4 SENPL R1V SD F1S COMPRESSOR CONTACTOR M1C HWL J1HC FUSE 250V 10A Z1 3F R1T NOISE FILTER TRIAC K1M SURGE ARRESTER POWER CIRCUIT PC SS1 SAFETY DEVICES INPUT Q1M COOL HEAT SELECTOR THERMISTOR DISCHARGE THERMISTOR COIL Y...

Page 588: ...1S C4R C3R F2C K2M C1R C2R Z1F A1P Z3F A3P T1R SWITCH BOX LEFT INVERTER BOX RIGHT X10A S2PH X11A X1S X2S F2C X8A Q1M X9A Q2M S1PH CAPACITOR MODE SET RETURN WIRING CHECK RESET PRINTED CIRCUIT BOARD J1HC J2HC PUSH BUTTON SWITCH DC CURRENT TRANSFORMER REACTOR HWL H1P 7P OVER CURRENT RELAY M2C F6U F1U F2U F2C F1S C1R 4R THERMAL PROTECTOR KLIXON MF1 MF2 4 WAY VALVE SOLENOID VALVE INJECTION M2C SOLENOID...

Page 589: ...Wiring Diagrams Outdoor Unit PACD011001C2 568 Appendix 1 4 ME1R Series Heat Recovery CU 8 10ME1XPK ...

Page 590: ...PACD011001C2 Wiring Diagrams Outdoor Unit Appendix 569 CZ 100 160HR1HP ...

Page 591: ...Wiring Diagrams Outdoor Unit PACD011001C2 570 Appendix 1 5 MA1R Series Combination PA 16 18 20MA1XPK ...

Page 592: ...PACD011001C2 Wiring Diagrams Outdoor Unit Appendix 571 PA 24 26 28 30MA1XPK ...

Page 593: ...Wiring Diagrams Indoor Unit PACD011001C2 572 Appendix 2 Wiring Diagrams Indoor Unit 2 1 2 Way Cassette Type CS 20 25 32 63LMHPP ...

Page 594: ...PACD011001C2 Wiring Diagrams Indoor Unit Appendix 573 CS 40 50 80 125LMHPP ...

Page 595: ... A3P SELECTOR SWITCH MAIN SUB SS1 PHASE CONTROL CIRCUIT PC TERMINAL STRIP CONTROL X2M X1M T1R R1T R2T R3T THERMISTOR COIL THERMISTOR AIR TRANSFORMER 220 240V 22V MAGNETIC RELAY M1P RyP M1F M1P MOTOR DRAIN PUMP A1P PRINTED CIRCUIT BOARD M1S MOTOR SWING FLAP MOTOR INDOOR FAN C3 HAP 33H CAPACITIOR LIGHT EMITTING DIODE SERVICE MONITOR GREEN FLOAT SWITCH TERMINAL STRIP POWER WIRED REMOTE CONTROLLER REC...

Page 596: ...PACD011001C2 Wiring Diagrams Indoor Unit Appendix 575 2 3 Corner Type CS 25 32 40 63DM1HPK ...

Page 597: ...Wiring Diagrams Indoor Unit PACD011001C2 576 Appendix 2 4 Built In Type CS 20 25 32 40 50 63FMHPP ...

Page 598: ...PACD011001C2 Wiring Diagrams Indoor Unit Appendix 577 CS 80 100 125FMHPP ...

Page 599: ...Wiring Diagrams Indoor Unit PACD011001C2 578 Appendix 2 5 Ducted Type CS 40 50 63 80 100 125EMHPK ...

Page 600: ...PACD011001C2 Wiring Diagrams Indoor Unit Appendix 579 CS 200 250EMHPK ...

Page 601: ...Wiring Diagrams Indoor Unit PACD011001C2 580 Appendix 2 6 Ceiling Type CS 32 63 100TMJPL ...

Page 602: ...PACD011001C2 Wiring Diagrams Indoor Unit Appendix 581 2 7 Wall Type CS 20 25 32 40 50 63KM1HPK ...

Page 603: ...Wiring Diagrams Indoor Unit PACD011001C2 582 Appendix 2 8 Floor Standing Type Concealed Floor Standing Type CS 20 25 32 40 50 63PM1HPK CS 20 25 32 40 50 63RM1HPK ...

Page 604: ...PACD011001C2 Wiring Diagrams Indoor Unit Appendix 583 2 9 Small Duct Type CS 20 25NM1HPP ...

Page 605: ...7 57 4 0 35 0 6 1 35 32 0 37 6 2 35 53 7 58 3 0 40 2 5 1 40 33 2 38 7 2 40 54 7 59 2 0 45 1 1 5 4 1 45 34 4 39 9 2 45 55 6 60 2 0 50 1 4 7 9 1 50 35 6 41 1 2 50 56 6 61 1 0 55 3 9 10 3 1 55 36 8 42 2 2 60 58 4 62 8 0 60 6 4 12 7 1 60 38 1 43 4 2 70 60 0 64 3 0 65 8 7 14 9 1 65 39 3 44 6 2 80 61 6 65 9 0 70 10 6 16 8 1 70 40 5 45 7 2 90 63 2 67 4 0 75 12 6 18 7 1 75 41 7 46 9 3 00 64 9 68 9 0 80 14...

Page 606: ...83 25 45 8 71 8 54 4 81 08 78 97 46 8 37 8 21 3 76 93 74 94 47 8 05 7 90 2 73 01 71 14 48 7 75 7 60 1 69 32 67 56 49 7 46 7 31 0 65 84 64 17 50 7 18 7 04 1 62 54 60 96 51 6 91 6 78 2 59 43 57 94 52 6 65 6 53 3 56 49 55 08 53 6 41 6 53 4 53 71 52 38 54 6 65 6 53 5 51 09 49 83 55 6 41 6 53 6 48 61 47 42 56 6 18 6 06 7 46 26 45 14 57 5 95 5 84 8 44 05 42 98 58 5 74 5 43 9 41 95 40 94 59 5 14 5 05 10 ...

Page 607: ... 92 33 35 121 7 26 7 16 22 228 05 223 08 72 32 78 32 23 122 7 06 6 97 23 218 24 213 51 73 31 69 31 15 123 6 87 6 78 24 208 90 204 39 74 30 63 30 12 124 6 69 6 59 25 200 00 195 71 75 29 61 29 12 125 6 51 6 42 26 191 53 187 44 76 28 64 28 16 126 6 33 6 25 27 183 46 179 57 77 27 69 27 24 127 6 16 6 08 28 175 77 172 06 78 26 79 26 35 128 6 00 5 92 29 168 44 164 90 79 25 91 25 49 129 5 84 5 76 30 161 4...

Page 608: ...e PH VH 0 5 0 98 Low Pressure PL VL 0 5 0 98 3 PH Detected Pressure High Side MPa PL Detected Pressure Low Side MPa VH Output Voltage High Side VDC VL Output Voltage Low Side VDC 0 5 1 0 5 0 1 2 3 4 VDC Output Voltage VH VL 10 2 1 0 15 3 1 5 30 6 3 0 25 5 2 5 20 4 2 0 kg cm MPa Detected Pressure PH PL V0818 ...

Page 609: ...ransistors and Diode Modules Decision according to continuity check by analog tester Before checking disconnect the electric wiring connected to the power transistor and diode module Power Transistor On Inverter PC Board Decision If other than given above the power unit is defective and must be replaced Note If using a digital tester and continuity may be reversed ...

Page 610: ...PACD011001C2 Characteristics Appendix 589 Diode Module Decision If other than given above the diode module is defective and must be replaced Note If using a digital tester and continuity may be reversed ...

Page 611: ...door units the indoor unit No before and after changing the PC board may differ Set after checking the indoor unit No 2 Central address Change setting with the remote controller 3 Capacity display A capacity setting adaptor must be installed for all models Fan phase control is for CS UM CS TM CS KM only Precautions when replacing outdoor unit PC board When replacing the outdoor unit PC board set t...

Page 612: ... 1 Typical Wiring Mistakes One of the indoor units is connected to outdoor to outdoor transmission terminals Installation test operation Indoor unit 1 Normal Indoor unit 2 UF malfunction Other than above Indoor unit 1 Normal Indoor unit 2 U4 malfunction or no malfunction display ...

Page 613: ... 592 Appendix All Indoor Units Connected to the Outdoor to Outdoor Unit Terminal Installation test operation Indoor unit 1 UF malfunction Indoor unit 2 Other than above Indoor unit 1 U4 malfunction or no malfunction display Indoor unit 2 ...

Page 614: ...CD011001C2 Typical Wiring Mistakes Appendix 593 All Indoor Units Connected to Indoor to Outdoor and Outdoor to Outdoor Unit Terminals Installation test operation Indoor unit 1 U4 malfunction Indoor unit 2 ...

Page 615: ...CD011001C2 594 Appendix Extended Indoor Unit After 12 minutes elapse 10 min after turning power on Indoor unit 1 Normal Indoor unit 2 U4 malfunction Push and hold RESET button for 5 sec Indoor unit 1 Normal Indoor unit 2 Normal ...

Page 616: ...t 1 is connected to outdoor to outdoor transmission terminals Installation test operation Indoor unit 1 Normal Indoor unit 2 UF malfunction Indoor unit 3 Normal Indoor unit 4 Normal Other than above Indoor unit 1 Normal Indoor unit 2 U4 malfunction Indoor unit 3 Normal Indoor unit 4 Normal ...

Page 617: ... 1 and the outdoor to outdoor terminal of outdoor unit 2 are connected The indoor to outdoor terminals of outdoor units 1 and 2 are connected Indoor unit 1 Normal Indoor unit 2 Normal Indoor unit 3 UH malfunction Indoor unit 4 Indoor unit 1 UH malfunction Indoor unit 2 Indoor unit 3 Indoor unit 4 ...

Page 618: ...ficient pressure proof in R22 indoor unit 2 When HFC indoor unit is connected to R22 system Reason Operation disallowed to prevent contamination of another system by HFC indoor unit operated previously with R22 system If HFC indoor unit that was operated with R22 system is removed and connected to another HFC system it can contaminate SUNISO oil etc the newly connected HFC system ...

Page 619: ...r for unified group cannot however be used in combination with other optional controllers for centralised control central remote controller unified on off controller schedule timer etc 6 1 1 Outline of System 1 Individual control controls indoor units individually 2 Group control Simultaneously controls group controlled indoor units max 16 units all together In the case of individual display insta...

Page 620: ...ing page for details Display Signal Fetch Display of malfunction signal no voltage contact a Display of operation no voltage contact a Remote temperature setting Can be set from 16 32 C Note For voltage input approximately 10 mA of input current per contact is required In the case of input use a micro current contact as the input contact There is no polarity for voltage input Either plus common or...

Page 621: ...ntents when input A are not achieved input A must be input over again C If controlling operation using instantaneous input for input A Use instantaneous input of min 200 msec ON time Input B has a forced OFF function when input B is ON operation stops and input A is disregarded When input B is OFF function of input A is restored Position Function Contents of input A when ON Contents of input A whe...

Page 622: ...emote controller inhibit Same as position 5 Forced thermostat OFF command D Forced temperature shift E Individual Same as position 6 Forced thermostat OFF command F Forced temperature shift Position Function Contents of input A when ON Contents of input B when ON 7 Remote controller inhibit ON remote controller normally inhibited OFF remote controller inhibited 8 Centralised priority ON remote con...

Page 623: ... using one adaptor PC board If equipped with an air cleaner unit however the mounting box is mounted on the side of the main body If using two types of adaptor PC boards two mounting boxes must be mounted on the side of the main body Preset temperature C 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Resistance Ω 0 3 4 5 11 6 13 8 20 22 4 28 4 31 36 4 39 4 44 8 48 2 52 8 56 6 61 2 65 2 69 4 73...

Page 624: ...ptor for individual and unified control is used for turning units on off and setting temperature from a remote location display of operation and invoking display of malfunction A single adaptor enables unified control of groups connected to the remote controller transmission line N P 6 2 1 Part Names and Functions 6 2 2 Wiring to Outside Host Computer Monitor Panel Etc Input for Control by Electri...

Page 625: ...rmitted inhibited OFF ON by remote controller permitted stops by OFF remote controller inhibited 5 Remote controller inhibited ON OFF cyclic 6 Individual Same as mode 5 only OFF by remote controller always permitted Stops by ON remote controller inhibited Remote controller permitted by OFF 7 Remote controller inhibited Operates by ON Stops by ON 8 Central priority Operates by ON remote controller ...

Page 626: ... Mounting Box is Required or Not Output Both RY1 and RY2 OFF Only RY1 ON Only RY2 ON System Individual control or individual display Group control OFF All normal operation Even one unit stopped due to malfunction or transmission malfunction between adaptor PC board and indoor unit Preset temperature C 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Resistance Ω 0 3 4 5 11 6 13 8 20 22 4 28 4 31...

Page 627: ...r Optional Accessory KRP1B61 KRP1B2 KRP1B3 Objective use Enables you to fetch compressor and fan operation output when optional accessories auxiliary electric heater humidifier fresh air intake kit with fan duct are installed 6 3 1 Part Names and Functions KRP1B61 KRP1B2 KRP1B3 ...

Page 628: ...tric heater Natural evaporation humidifier Ultrasonic humidifier Other required optional accessories Mounting position CS LM KRP1B61 Not required Mounted inside electrical parts box of main unit CS DM CS FM Hot water heater CS EM Hot water heater CS PM CS RM CS TM CS UM KRP1B2 KPP1B98 Duct fan Mounted inside main unit CS KM KRP1B3 Not required Mounted inside electrical parts box of main unit ...

Page 629: ...es lets you connect optional controllers for centralised control central remote controller unified ON OFF controller schedule timer with US Part Names and Functions System Outline If using UM System Inverter in common with transmission line connect either A indoor to outdoor unit transmission wiring or B outdoor to outdoor unit transmission wiring ...

Page 630: ...PACD011001C2 Interface Adaptor Appendix 609 6 4 1 Connection Interface adaptor for US series Independent control Group control Pair Multi ...

Page 631: ... 4 with setting switch RS1 Set from among 0 9 and A F with RS2 Be careful not to duplicate a group No of other apparatus when setting Output for Control ON output terminals W1 W2 and OFF output terminals W3 W4 are no voltage contact output Contact specifications are 2 A 1 mA for 220 240VAC and 3 A 1 mA for 5 24 VDC ON Instantaneous output of 1 second ON An adaptor for wiring is required for remote...

Page 632: ...icated central mode stop cannot be effected from other air conditioner For without individual stop can be effected from optional central controller only For with individual stop can be effected from other air conditioner as well Factory set is without individual Malfunction Signal Switch SS3 Switch for carrying out malfunction detection for stop operation from optional central controller In the ca...

Page 633: ...Interface Adaptor PACD011001C2 612 Appendix 6 5 3 Mounting of CZ 103AP11P Storage box is field supplied Outer dimensions 230 W 230 D 60 H ...

Page 634: ...r indoor units connected in a UM net you can simultaneously select cool heat mode for several outdoor units in the system and it enables demand control and low noise control 6 6 1 Part Names and Functions 6 6 2 Cool Heat Mode Unified Selection For Detailed Example of Wiring See the Page Describing Cool Heat Mode Control Note Refer to Cool Heat Mode Switching on P92 309 System Outline ...

Page 635: ...Low Noise Control Connecting control input to the adaptor for outside control of outdoor units enables demand and low noise control Demand Control Figures Indicate Demand Rate When short circuit between 1 and C Approx 70 as a guideline When short circuit between 2 and C Approx 40 as a guideline When short circuit between 3 and C Forced fan operation Low Noise Control Outdoor Unit Running noise can...

Page 636: ... or outdoor unit BS unit if using cool heat simultaneous selection type For detailed settings see the installation manual Note Refer to the INSTALLATION INSTRUCTION Common Control Input Specifications Input signal Constant contact a Input current is approx 12 24 VDC 10 mA per contact Use a micro current contact for the relay contact Max 12 VDC 1 mA Outside wiring specifications Recommended electri...

Page 637: ...malfunction and unified control from the host computer monitor panel on off commands 6 7 1 System Outline Unified Display Displays operation and malfunctions of all indoor units controlled by central remote controller on a host computer monitor panel Unified Control Enables unified display of all indoor units controlled by central remote controller and unified ON OFF control from a host computer m...

Page 638: ...ternal Control Input Wiring to Host Computer Monitor Panel Etc Specifications of wiring for transmission 0 75 1 25 mm sheathed vinyl cord or cable double core Max length 150 m 6 7 4 Control Input Unified ON OFF Control Wire as described below according to whether input is voltage or no voltage Contact a Input for Both Input A and B Voltage Set the changeover switch SS1 to voltage Factory set Volta...

Page 639: ...ut of at least 400 msec ON time Set all switches before turning on the power supply External Control Input Wiring to Host Computer Monitor Panel Etc Fetching the display signal Normal operation output terminals W1 W2 and malfunction output terminals W3 W4 are for contact output with no voltage Allowable current per contact is 10 mA 3 A Output is as described below Position Input A 2 Unified ON by ...

Page 640: ...ptor Appendix 619 6 7 6 Installation of DCS302A52 Install inside the control panel in the same place as the central remote controller in the field Length of attached wiring is approx 5 m Fasten securely with the attached screws ...

Page 641: ...onal tools and materials Pipe cutter Refrigerant piping work Cutting pipes Interchangeable Flaring tool Flaring pipes Refrigerant oil Applying on flared spots Specified ether oil ester oil alkyl benzene oil or their mixture to be used Torque wrench Connecting flare nut Interchangeable Pipe expander Expanding pipes at connections Pipe bender Bending pipes Nitrogen Air tightness test Inhibiting oxid...

Page 642: ...e pipes To avoid leak apply a proper amount of refrigerant oil over the inner and outer surfaces of each flared section As the refrigerant oil be sure to use synthetic oil ether oil ester oil alkyl benzene oil or their mixture Charging refrigerant Be sure to charge the new type refrigerant in liquid phase via the service port of the liquid side stop valve outdoor unit At this time give vacuum dryi...

Page 643: ...SERIAL No EUUMSM01001 Printed in Japan ...

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