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Check

SiUS341615E

299

Service Diagnosis

4.8

Thermistor Check

Thermistor type of indoor units

Thermistor type of outdoor units

CHECK 11

Model

Suction air thermistor

Indoor heat exchanger 

(liquid) thermistor

Indoor heat exchanger 

(gas) thermistor

Discharge air thermistor

R1T

R2T

R3T

R4T

FXFQ-T

Type C

Type A

Type J

–

FXFQ-P

Type D

–

FXZQ-M

Type B

–

FXUQ-P

Type C

–

FXEQ-P

Type B

–

FXDQ-M

–

FXMQ-PB

Type J

FXMQ-M

–

FXHQ-M

–

FXAQ-P

–

FXLQ-M

–

FXNQ-M

–

FXTQ-TA

–

Type A

–

Model

Thermistor

Type

RXYQ72TA

R1T

Outdoor air

E

R21T

Discharge pipe

H

R3T

Accumulator inlet

A

R4T

Heat exchanger liquid pipe

A

R5T

Subcooling heat exchanger liquid pipe

A

R6T

Subcooling heat exchanger gas pipe

A

R7T

Hear exchanger deicer

A

RXYQ96/120TA

R1T

Outdoor air

E

R21T

Discharge pipe

H

R3T

Accumulator inlet

A

R4T

Heat exchanger liquid pipe

A

R5T

Subcooling heat exchanger liquid pipe

A

R6T

Subcooling heat exchanger gas pipe

A

R7T

Hear exchanger deicer

A

R8T

M1C body

H

RXYQ144/168TA

R1T

Outdoor air (A1P)

E

R1T

Radiation fin (A3P) (TATJU only)

F

R21T
R22T

Discharge pipe

H

R3T

Accumulator inlet

A

R4T

Heat exchanger liquid pipe

A

R5T

Subcooling heat exchanger liquid pipe

A

R6T

Subcooling heat exchanger gas pipe

A

R7T

Hear exchanger deicer

A

Содержание RXYQ-TA Series

Страница 1: ...Service Manual SiUS341615E RXYQ72 408TAYDU RXYQ72 408TATJU Heat Pump 60 Hz...

Страница 2: ...S391502 F7 FXTQ TA Air Handling Unit 2 4 2 3 2 3 3 4 3 5 3 4 3 5 3 3 2 3 4 7 4 5 Outdoor air processing unit FXMQ MF EDUS39 900A F10 4 Energy recovery ventilator VAM G EDUS711116A 2 Option list VRV in...

Страница 3: ...nit Combinations 7 Part 2 Refrigerant Circuit 8 1 Refrigerant Circuit 9 1 1 Outdoor Unit 9 1 2 Indoor Unit 15 1 3 Outdoor Air Processing Unit 17 2 Functional Parts Layout 18 2 1 RXYQ72TAYDU 18 2 2 RXY...

Страница 4: ...of Compressors 58 5 4 Compressor Step Control 59 5 5 Electronic Expansion Valve Control 59 5 6 Step Control of Outdoor Fans 60 6 Protection Control 61 6 1 High Pressure Protection Control 61 6 2 Low...

Страница 5: ...0 2 3 Settings by BS Buttons 123 2 4 Normal Mode 125 2 5 Monitor Mode Mode 1 126 2 6 Setting Mode Mode 2 140 3 Test Operation 157 3 1 Checks before Test Operation 157 3 2 Checkpoints 157 3 3 Check Wor...

Страница 6: ...Pressure Switch 215 3 30 Actuation of Low Pressure Sensor 217 3 31 Inverter Compressor Motor Lock 219 3 32 Compressor Damage Alarm 221 3 33 Outdoor Fan Motor Abnormality 223 3 34 Electronic Expansion...

Страница 7: ...ter Capacity Setting 283 3 65 Address Duplication of Centralized Controller 284 3 66 Transmission Error between Centralized Controller and Indoor Unit 285 3 67 System not Set yet 288 3 68 System Abnor...

Страница 8: ...ding Safety of Workers Warning Do not store the equipment in a room with fire sources e g naked flames gas appliances electric heaters Be sure to disconnect the power cable from the socket before disa...

Страница 9: ...equipment failure Do not mix air or gas other than the specified refrigerant R 32 R 410A R 22 in the refrigerant system If air enters the refrigerating system excessively high pressure results causin...

Страница 10: ...ble and lead wires are scratched or have deteriorated be sure to replace them Damaged cable and wires may cause an electrical shock excessive heat generation or fire Do not use a joined power cable or...

Страница 11: ...work must be stopped be sure to pump down and close the service valve to prevent refrigerant gas from leaking into the room Refrigerant gas itself is harmless but it may generate toxic gases when it...

Страница 12: ...has corroded replace it A corroded installation platform or frame may cause the unit to fall resulting in injury Check the earth grounding and repair it if the equipment is not properly earthed ground...

Страница 13: ...ion is used when there is danger that the reader through incorrect manipulation may damage equipment loose data get an unexpected result or has to restart part of a procedure Note Note A Note provides...

Страница 14: ...r Outdoor Units 2 1 1 Indoor Unit 2 1 2 Outdoor Unit 2 1 3 Air Treatment Equipment 3 2 External Appearance 4 2 1 Indoor Unit 4 2 2 Outdoor Unit 5 2 3 Air Treatment Equipment 5 3 Combination of Outdoor...

Страница 15: ...Slim Ceiling Mounted Duct Type FXDQ 07M 09M 12M 18M 24M Ceiling Mounted Duct Type Middle and High Static Pressure FXMQ 07PB 09PB 12PB 15PB 18PB 24PB 30PB 36PB 48PB 54PB Ceiling Mounted Duct Type FXMQ...

Страница 16: ...unit 1 RXYQ144TAYDU RXYQ168TAYDU RXYQ120TAYDU RXYQ96TAYDU RXYQ96TAYDU Outdoor unit 2 RXYQ168TAYDU RXYQ168TAYDU RXYQ120TAYDU RXYQ120TAYDU RXYQ144TAYDU Outdoor unit 3 RXYQ120TAYDU RXYQ168TAYDU RXYQ168TA...

Страница 17: ...nd flow type FXFQ P Shown with BYCP125K W1 Ceiling suspended type FXHQ M 4 way ceiling mounted cassette 2 2 type FXZQ M Shown with BYFQ60B8W1U Wall mounted type FXAQ P 4 way blow ceiling suspended typ...

Страница 18: ...or Unit Single Outdoor Unit Double Outdoor Unit Triple Outdoor Unit 2 3 Air Treatment Equipment Outdoor air processing unit FXMQ MF Energy recovery ventilator VAM series VAM G RXYQ96 120 144 168TA RXY...

Страница 19: ...n piping kit separately sold is required System capacity Number of units Module Outdoor Unit Multi Connection Piping Kit 1 ton HP 72 96 120 144 168 6 7 5 1 O 8 10 1 O 10 12 5 1 O 12 15 1 O 14 17 5 1 O...

Страница 20: ...units capacity 130 1 In heating mode fan speed is limited to L tap when indoor units capacity 130 2 Fan speed follows a setting of the remote controller not limited by indoor units connection capacity...

Страница 21: ...Processing Unit 17 2 Functional Parts Layout 18 2 1 RXYQ72TAYDU 18 2 2 RXYQ96 120TAYDU 19 2 3 RXYQ144 168TAYDU 20 2 4 RXYQ72TATJU 21 2 5 RXYQ96 120TATJU 22 2 6 RXYQ144 168TATJU 23 3 Refrigerant Flow...

Страница 22: ...ssure of 4 0 MPa 580 psi for prevention of pressure increase thus resulting in no damage of functional parts due to the increase of pressure in transportation or storage 12 Subcooling heat exchanger U...

Страница 23: ...tion Liquid pipe Gas pipe Double tube heat exchanger Fusible plug Electronic expansion valve Pressure regulating valve Electronic expansion valve Heat sink Heat exchanger Four way valve High pressure...

Страница 24: ...arts due to the increase of pressure in transportation or storage 13 Subcooling heat exchanger Used to subcooling liquid refrigerant from the electronic expansion valve 14 Capillary tube Used to retur...

Страница 25: ...lter Solenoid valve Capillary tube Charge port SV Solenoid valve Filter Capillary tube Compressor M1C S1PH High pressure switch Oil separator Filter Check valve S1NPH High pressure sensor Four way val...

Страница 26: ...n no damage of functional parts due to the increase of pressure in transportation or storage 16 Subcooling heat exchanger Used to subcooling liquid refrigerant from the electronic expansion valve 17 C...

Страница 27: ...Oil separator Oil separator S1PH High pressure switch Filter Check valve Filter Check valve S1NPH High pressure sensor Four way valve M M Fan Fan Filter Filter Electronic expansion valve Heat sink S2P...

Страница 28: ...ree control while in heating 4 Gas pipe thermistor R3T R3T R3T Used for gas superheated degree control while in cooling 5 Discharge air thermistor R4T Used for discharge air temperature control FXFQ T...

Страница 29: ...S341615E Refrigerant Circuit Refrigerant Circuit 16 FXMQ PB FXTQ TA Indoor heat exchanger Fan Filter Filter 4 2 1 3 Gas piping connection port Liquid piping connection port C 4D034245P 5 C 4D068194 4...

Страница 30: ...ressure from high to low in bypassing hot gas 4 R1T Suction air thermistor Used to turn ON or OFF the thermostat 5 R2T Liquid pipe thermistor Used to control the opening degree of electronic expansion...

Страница 31: ...nsor S1NPL Thermistor Subcooling heat exchanger gas pipe R6T Thermistor Heat exchanger liquid pipe R4T Inverter fan M1F Electronic expansion valve Main Y1E Thermistor Subcooling heat exchanger liquid...

Страница 32: ...nger liquid pipe R5T Inverter fan M1F Thermistor Outdoor air R1T Low pressure sensor S1NPL Solenoid valve Four way valve Y1S Electronic expansion valve Main Y1E Thermistor Heat exchanger liquid pipe R...

Страница 33: ...liquid pipe R5T Inverter fan M1F Thermistor Outdoor air R1T Inverter fan M2F Low pressure sensor S1NPL Solenoid valve Four way valve Y1S Electronic expansion valve Main Y1E Thermistor Heat exchanger l...

Страница 34: ...ermistor Subcooling heat exchanger gas pipe R6T Thermistor Heat exchanger liquid pipe R4T Inverter fan M1F Solenoid valve Four way valve Y1S Electronic expansion valve Main Y1E Thermistor Subcooling h...

Страница 35: ...nger liquid pipe R5T Inverter fan M1F Thermistor Outdoor air R1T Low pressure sensor S1NPL Solenoid valve Four way valve Y1S Thermistor Heat exchanger liquid pipe R4T Thermistor Compressor body R8T Hi...

Страница 36: ...liquid pipe R5T High pressure sensor S1NPH Thermistor Outdoor air R1T Inverter fan M2F Low pressure sensor S1NPL Solenoid valve Four way valve Y1S Electronic expansion valve Main Y1E Thermistor Heat e...

Страница 37: ...tronic expansion valve Filter Filter Fan C 3D085567A High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure EV Normal control Stop valve With service por...

Страница 38: ...ilter Fan High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure EV Normal control EV Normal control Stop valve With service port 5 16 in 7 9mm flare con...

Страница 39: ...lter Filter Fan C 3D085567A High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure EV Normal control Stop valve With service port 5 16 in 7 9mm flare con...

Страница 40: ...r Fan C 3D085567A High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure EV Normal control Stop valve With service port 5 16 in 7 9mm flare connection Fi...

Страница 41: ...operation C 3D085598A High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure EV Normal control OFF ON ON Stop valve With service port 5 16 in 7 9mm flar...

Страница 42: ...valve High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure EV Normal control EV Normal control Stop valve With service port 5 16 in 7 9mm flare connec...

Страница 43: ...r Filter Fan C 3D085598A High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure EV Normal control Stop valve With service port 5 16 in 7 9mm flare connec...

Страница 44: ...an C 3D085598A High temperature high pressure gas High temperature high pressure liquid Low temperature low pressure EV Normal control Stop valve With service port 5 16 in 7 9mm flare connection Filte...

Страница 45: ...s High temperature high pressure liquid Low temperature low pressure EV Normal control OFF ON ON Stop valve With service port 5 16 in 7 9mm flare connection Filter Filter Accumulator SV Filter Solenoi...

Страница 46: ...e high pressure liquid Low temperature low pressure EV Normal control EV Normal control Stop valve With service port 5 16 in 7 9mm flare connection Filter Filter Accumulator SV Filter Solenoid valve F...

Страница 47: ...as High temperature high pressure liquid Low temperature low pressure EV Normal control Stop valve With service port 5 16 in 7 9mm flare connection Filter Filter Accumulator SV Filter Solenoid valve F...

Страница 48: ...mperature high pressure liquid Low temperature low pressure EV Normal control Stop valve With service port 5 16 in 7 9mm flare connection Filter Filter Accumulator SV Filter Solenoid valve Filter Capi...

Страница 49: ...d Functions 38 2 1 BRC1E73 38 2 2 Wireless Remote Controller 40 3 MAIN SUB Setting 41 3 1 BRC1E73 41 3 2 Wireless Remote Controller 42 4 Centralized Control Group No Setting 43 4 1 BRC1E73 43 4 2 Wire...

Страница 50: ...ontroller 1 Applicable Models Series Wired remote controller Wireless remote controller Navigation FXFQ T BRC1E73 FXFQ P FXZQ M BRC7E830 FXUQ P FXEQ P FXDQ M BRC4C82 FXMQ PB FXMQ M FXHQ M BRC7E83 FXAQ...

Страница 51: ...o press the buttons on the remote controller damage may result 1 Operation mode selector button Press this button to select the operation mode of your preference Available modes vary with the indoor u...

Страница 52: ...ghlight the next items on the right hand side Each screen is scrolled in the right hand direction 7 Left button W Used to highlight the next items on the left hand side Each screen is scrolled in the...

Страница 53: ...fan speed When the INSPECTION TEST button is pressed the display shows the system mode is in 13 14 15 16 17 TIMER RESERVE CANCEL BUTTON AIR FLOW DIRECTION ADJUST BUTTON OPERATION MODE SELECTOR BUTTON...

Страница 54: ...controller from MAIN to SUB proceed as follows The designation of the main and sub remote controllers can be swapped Note that this change requires turning the power OFF and then ON again Service set...

Страница 55: ...less Remote Controller The address for the wireless remote controller is factory setting to 1 To change this setting proceed as follows 1 Hold down the button and the button for at least 4 seconds to...

Страница 56: ...t and then press the Menu OK button Press the Cancel button once Service settings menu is displayed Item 2 is displayed Item 2 is displayed Item 2 is displayed Basic screen is displayed Press and hold...

Страница 57: ...the operation manual for maintenance Group Address Group Select Group Address and then press the Menu OK button Select Group Address Group and then press the Menu OK button Press the Cancel button onc...

Страница 58: ...INSPECTION TEST button for 4 seconds or more to enter field setting mode 2 Set mode No 00 with MODE button 3 Set the group No for each group with UP button or DOWN button 4 Enter the selected group n...

Страница 59: ...played once for about 1 minute on the liquid crystal display This is not an operative fault Centralized 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...

Страница 60: ...ressor 2 operation Indoor Unit Status 1 Unit No Select the Unit No you want to check 2 FAN Fan tap 1 3 Speed Fan speed rpm 2 4 FLAP Airflow direction 5 EV Degree that electronic expansion valve is ope...

Страница 61: ...ower supply frequency Hz 4 EV1 Degree that electronic expansion valve is open pulse 5 SV1 Solenoid valve ON OFF 6 Th1 7 Th2 8 Th3 9 Th4 10 Th5 11 Th6 Forced Defrost 1 Forced defrost ON Enables the for...

Страница 62: ...Valve Control 59 5 6 Step Control of Outdoor Fans 60 6 Protection Control 61 6 1 High Pressure Protection Control 61 6 2 Low Pressure Protection Control 62 6 3 Discharge Pipe Protection Control 63 6 4...

Страница 63: ...er Control for Preventing Ceiling Dirt 87 8 11 Heater Control Except FXTQ TA Models 88 8 12 Heater Control FXTQ TA Models 89 8 13 3 Step Thermostat Processing FXTQ TA Models 92 8 14 Fan Control Heater...

Страница 64: ...tartup 1 Startup control in cooling 2 Startup control in heating Normal operation 1 Normal operation 2 Compressor capacity control 3 Operation priority and rotation of compressors 4 Compressor step co...

Страница 65: ...Refer to Error Code and Description page 171 of the troubleshooting for the items to determine the error 2 2 When System is in Stop Mode The four way valves both for heat exchanger switch and piping...

Страница 66: ...m In addition the outdoor fan carry out the residual operation for a while to suppress the acceleration of the pressure equalizing and melting of the refrigerant to the evaporator 3 2 Crankcase Heater...

Страница 67: ...ur way valve 4 1 Startup Control in Cooling Pc High pressure sensor detection value Pe Low pressure sensor detection value Ta Outdoor air temperature Te Low pressure equivalent saturation temperature...

Страница 68: ...2 Hz 20 sec A B C D E A 0 pulse Step 4 Step 8 OR UT Ta Te control A Inverter compressor 1 M1C Inverter compressor 2 M2C Electronic expansion valve main Y1E Inverter fan M1F RXYQ72TA M1F M2F RXYQ96 168...

Страница 69: ...z 0 480 pulses at compressor ON Four way valve Y1S z z OFF Solenoid valve Accumulator oil return Y2S z z Close if DSH 15 C 27 F Solenoid valve Oil return 1 Y3S z z Only close if Pc Pe 0 3 MPa 43 5 ps...

Страница 70: ...anged based on the selected sub function taking indoor load into account The initial target saturated temperature can be changed For details refer to Description field settings mode 2 m2 on outdoor un...

Страница 71: ...ove diagram shows master unit slave unit 1 and slave unit 2 from left to right 2 Compressors may operate in any pattern other than those mentioned above according to the operating status Pattern 1 Pat...

Страница 72: ...pen if level difference outdoor maximum 90 m 295 ft above indoor units field setting 2 49 1 Heating electronic expansion valve is used in PID control suction superheat Compressor s OFF fully closed 0...

Страница 73: ...e controlled while in standard mode which vary when the system is set to high static pressure or capacity priority mode Step Fan revolutions rpm RXYQ72TA RXYQ96 120TA RXYQ144 168TA M1F M2F M1F M2F 0 0...

Страница 74: ...rmed in the entire system Normal operation High pressure standby Reduce compressor capacity step When occurring 4 times within 40 minutes high pressure switch is activated without high pressure standb...

Страница 75: ...e following control is performed in the system Normal operation Pe 0 34 MPa 49 8 psi Low pressure standby Reduce compressor capacity step Pe 0 07 MPa 9 95 psi Pe 0 39 MPa 56 9 psi When occurring 4 tim...

Страница 76: ...or or transient increase of compressor body temperature The following control is performed for each compressor of single unit as well as multi units Inverter compressor Normal operation Discharge pipe...

Страница 77: ...XYQ96 120TA RXYQ144 168TA M1C M1C M1C M2C TAYDU A 11 0 A 18 0 A 11 5 A 11 5 A B 11 0 A 18 0 A 11 5 A 11 5 A C 13 0 A 21 5 A 13 0 A 13 0 A TATJU A 27 6 A 33 8 A 27 6 A 27 6 A B 26 5 A 32 5 A 26 5 A 26...

Страница 78: ...pressure value above upper limit of sensor error JC Mechanical internal load on compressor increases Low compression ratio can result in insufficient compressor internal oil lubrication Heating is dis...

Страница 79: ...of outdoor unit rotation In the case of multi outdoor unit system each outdoor unit is given an operating priority for the control Outdoor unit rotation makes it possible to change the operating prior...

Страница 80: ...not change Normal operation Priority 1 Priority 2 Priority 3 Priority 3 Priority 1 Priority 2 Normal operation Normal operation Priority 2 Priority 3 Priority 1 Normal operation Priority 3 Priority 1...

Страница 81: ...s computed from Tc Te and compressor loads z equipped not equipped 1 RXYQ96 120TA only Part Name Electric Symbol RXYQ72 120TA RXYQ144 168TA Function of Functional Part Inverter compressor 1 M1C z z Ca...

Страница 82: ...z 1 z Electronic expansion valve Main Y1E z z RXYQ72TA 480 pulses RXYQ96 168TA 3 000 pulses Electronic expansion valve Injection Y2E z z 0 pulse Four way valve Y1S z z OFF Solenoid valve Accumulator...

Страница 83: ...ating conditions Outdoor air temperature 3 C 37 4 F During defrost operation Part Name Electric Symbol RXYQ72 120TA RXYQ144 168TA Operation Inverter compressor 1 M1C z z RXYQ72TA 266 Hz RXYQ96 120TA 1...

Страница 84: ...nal to outdoor unit Output Thermostat ON operation signal to outdoor unit Output 1 If any error occurs the relevant error code will be displayed according to the error code display of the remote contr...

Страница 85: ...on instruction from the remote controller the wind direction is set to 100 horizontal while in heating operation 11 Fan According to fan speed instruction from the remote controller the fan is put int...

Страница 86: ...d temperature 2 C 3 6 F The temperature difference for cooling heating mode switching is 5 C 9 F The above also applies to automatic operation When setting the suction air thermistor Default setting W...

Страница 87: ...remote controller set temperature Regarding control target temperature When using the infrared floor sensor the temperature around people will be treated as the control target temperature for operatio...

Страница 88: ...ote controller thermistor near the position of the user when the suction temperature is near the set temperature Assuming the set temperature in the figure above is 24 C 75 F and the suction temperatu...

Страница 89: ...ction temperature has changed from 18 C 64 F to 28 C 82 F A D This example also assumes there are several other air conditioners and the suction temperature changes even when the thermostat sensor is...

Страница 90: ...o will be the same as the cooling set temperature at the time of starting dry operation 1 The thermistor for room temperature detection depends on the field setting 10 20 2 2 Description of symbols T...

Страница 91: ...perate outside of use range To avoid the above condition a limit based on the suction air temperature is set for the use range of the temperature around people Heating operation When the floor tempera...

Страница 92: ...mode Cooling mode Control temp Differential value set to 1 C 1 8 F Set heating temp Set cooling temp Heating mode Control temp Differential value set to 2 C 3 6 F Heating mode Control temp Differenti...

Страница 93: ...After the thermostat turns OFF the drain pump continues to operate for another 5 minutes 1 If the float switch turns ON again during the residual operation of the drain pump cooling operation also tu...

Страница 94: ...drain pump turns ON simultaneously 1 If the float switch continues to turn OFF and ON 5 times consecutively it is judged as a drain system error and the error code AF is displayed on the remote contr...

Страница 95: ...lower As T Remote controller set temp Suction air temp becomes smaller SHS becomes higher Subcooling degree control in heating operation This function is used to adjust the opening of the electronic...

Страница 96: ...pipe temperature 1 C 30 2 F for total of 40 minutes or Liquid pipe temperature 5 C 23 F for total of 10 minutes Condition for cancelling Liquid pipe temperature 7 C 44 6 F for 10 minutes continuously...

Страница 97: ...15 minutes or Liquid pipe temperature 0 C 32 F for 1 minute continuously During freeze up prevention operation the airflow rate is fixed to LL The cancelling conditions are same as the standard 0 C 3...

Страница 98: ...ode for prevention of cold air Swing LL Horizontal Horizontal Horizontal Horizontal Airflow direction set LL Horizontal Horizontal Horizontal Horizontal Stop Swing OFF Horizontal Horizontal Horizontal...

Страница 99: ...re initiating the hot start OFF Hot start control Hot start in progress Normal control Normal control H L remote controller setting LL OFF Remote controller setting P0 Horizontal Fan Louver Ending con...

Страница 100: ...FQ FXZQ and FXEQ models Factory setting FXFQ models draft prevention position FXZQ FXEQ models standard position 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...

Страница 101: ...ed by converting the heater temperature into the condensing pressure equivalent saturated temperature Tc according to the temperature detection through the high pressure sensor S1NPH of the outdoor un...

Страница 102: ...Automatic heating Auxiliary heater enabled 1 Not in heating Automatic heating Auxiliary heater enabled 0 3 Heater not allowed Heater allowed Heater 1 OFF Heater 2 OFF OR OR OR Thermostat OFF Operatio...

Страница 103: ...mperature condition ON 2 Heater ON permission Defrost oil Return 0 4 Not during defrost oil return No fan motor system error During defrost oil return Heater ON permission Defrost oil return 1 4 OR No...

Страница 104: ...l value Thermostat OFF Operation OFF ENTRY 5 minutes timer starts Condition A Time up 2 H P Heating Not in operation Heater 1 ON Heater 2 OFF Fan ON Entry 5 minutes timer starts OR Thermostat step 2 O...

Страница 105: ...4 A and B values vary automatically based on the field setting 12 22 2 5 If directly after a change in conditions it is such that the thermostat could be either ON or OFF controlled temperature is wit...

Страница 106: ...LEANER terminal on the PCB 2 Field setting 14 24 4 Refer to page 113 8 15 2 Humidifier When a humidifier is connected onsite the fan operates with the airflow rate set of the remote controller or with...

Страница 107: ...turns ON the relay on the X2M ECONOMIZER2 on the PCB 2 External input ON is an input signal to the X1M ECONOMIZER1 terminal on the PCB 3 Refer to Optional Kit Setting UV lamp Humidifier Economizer fo...

Страница 108: ...etting Contents and Code No for Indoor Units 100 2 Field Settings for Outdoor Unit 118 2 1 Function Setting 118 2 2 Settings by DIP Switches 120 2 3 Settings by BS Buttons 123 2 4 Normal Mode 125 2 5...

Страница 109: ...p total setting 1 Press and hold Cancel button for 4 seconds or more Service settings menu is displayed 2 Select Field Settings in the Service Settings menu and press Menu OK button Field settings scr...

Страница 110: ...8 In the case of multiple setting changes repeat 3 to 7 9 After all setting changes are completed press Cancel button twice 10 Backlight goes out and Checking the connection Please standby is display...

Страница 111: ...ng normal mode to enter the field setting mode 2 Press the MODE button to select the desired mode No 3 Press the UP button to select the first code No 4 Press the DOWN button to select the second code...

Страница 112: ...ting W 4 During group control when setting by each indoor unit mode No 20 22 and 23 have been selected press the BS8 4 button unit No and select the indoor unit No to be set This operation is unnecess...

Страница 113: ...rature Ton Refer to page 106 for detail 2 Auxiliary electric heater OFF temperature Toff 3 Setting the airflow rate when heating Standard Slightly increased Increased 3 6 Electric heater setting Refer...

Страница 114: ...dard High ceiling 1 High ceiling 2 1 Airflow direction setting Set when a blocking pad kit has been installed F 4 directions T 3 directions W 2 directions 2 Swing pattern settings All direction synchr...

Страница 115: ...or standing type Concealed floor standing type Air handling unit Round flow 4 way flow FXFQ FXZQ FXUQ FXEQ FXDQ FXMQ FXHQ FXAQ FXLQ FXNQ FXTQ Filter sign z z z z z z z z z z z Ultra long life filter s...

Страница 116: ...03 room temperature is controlled by the remote controller thermistor FXTQ TA When the Second Code No is set to 02 room temperature is controlled by the remote sensor thermistor When the Second Code N...

Страница 117: ...6 75 2 78 8 82 4 86 89 6 F F 14 16 18 20 22 24 26 28 30 32 34 66 2 62 6 69 8 73 4 77 80 6 84 2 87 8 91 4 95 98 6 F F 57 2 60 8 64 4 68 71 6 75 2 78 8 82 4 86 89 6 93 2 In cooling In heating Suction ai...

Страница 118: ...continues for a certain period of time Absent time defined for detection can be selected as follows The set temperature displayed on the remote controller remains same even if the target temperature...

Страница 119: ...No First Code No Symbol Second Code No 01 02 03 04 05 06 11 21 1 Ton 4 C 7 2 F 3 5 C 6 3 F 3 C 5 4 F 2 5 C 4 5 F 2 C 3 6 F 1 5 C 2 7 F Toff 2 C 3 6 F 1 5 C 2 7 F 1 C 1 8 F 0 5 C 0 9 F 0 C 0 F 0 5 C 0...

Страница 120: ...efrost oil return operation 11 21 3 01 Electric heater with heat pump not allowed Not allowed 02 Electric heater with heat pump allowed Not allowed 07 Electric heater with heat pump not allowed Allowe...

Страница 121: ...presence sensor only Change the ratio between the suction air temperature and floor temperature used to calculate the temperature around human The temperature around human is calculated using the valu...

Страница 122: ...Code No Contents 11 21 9 01 4 C 7 2 F 02 2 C 3 6 F 03 0 C 0 F 04 2 C 3 6 F Environment Operation Mode Problem Setting Value The unit is installed close to a wall or a window High thermal capacity of t...

Страница 123: ...ply turned ON again return to the same operation condition as that of before power failure For the above reasons when the unit is set enabling to utilize Auto restart function after power failure rese...

Страница 124: ...e No First Code No Second Code No Contents 13 23 0 01 Standard 02 Slight increase 03 Normal increase Mode No First Code No Second Code No Contents Ceiling height 4 way Outlets 3 way Outlets 2 way Outl...

Страница 125: ...t be set to 110 200 Pa 0 44 0 80 inWG 3 FXMQ54PB cannot be set to 30 Pa 0 12 inWG or 150 200 Pa 0 60 0 80 inWG Mode No First Code No Second Code No Contents 13 23 3 01 Equipped 02 Not equipped Mode No...

Страница 126: ...e thermostat is stopped For the purpose of preventing dust on the air filter from falling off Mode No First Code No Second Code No Contents UV lamp humidifier fan speed Economizer setting for Mech sta...

Страница 127: ...t display is not preferred Key lock Pattern Settings For BRC1E73 only Setting of key lock pattern for the remote controller When the Second code No is set to 04 no menu operation is allowed without ke...

Страница 128: ...ent the airflow block is advertently set to ON Ensure that this setting is Disable airflow block when using together with options listed above Room Temperature Display For BRC1E73 only A Detailed disp...

Страница 129: ...trol only possible by remote controller Used when you want to turn ON by central remote controller only and OFF by remote controller only Centralized Used when you want to turn ON by central remote co...

Страница 130: ...ation 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 co...

Страница 131: ...tional COOL HEAT switch Optional board BRP2A81 required in 1 outdoor unit per zone 2 1 Optional COOL HEAT switch KRC19 26B 2 2 Set DIP switch DS1 1 on the outdoor board to OUT upper 2 3 Install option...

Страница 132: ...mode 2 13 5 High level difference outdoor to indoor Required setting when level difference between outdoor and indoor units of same refrigerant exceeds standard level Set mode 2 No 35 to 1 if outdoor...

Страница 133: ...DIP switch DS1 1 if required DIP switch Setting item Description No Setting DS1 1 ON COOL HEAT select Used to choose source to select Cooling Heating fan only Source can be or indoor remote controller...

Страница 134: ...initialization a test operation is required from outdoor unit hold BS2 SET till indication t01 appears 3 BS button BS1 BS3 2 Segment display SEG1 SEG3 4 DIP switch DS1 1 4 DS2 1 4 1 Microcomputer norm...

Страница 135: ...of power disconnected Application model The setting method represents the position of switches RXYQ72TA Set DS1 2 DS1 4 and DS2 2 to ON RXYQ96 120TA Set DS1 2 DS1 4 DS2 1 and DS2 2 to ON RXYQ144TA Set...

Страница 136: ...uble by communication Setting mode Used to make changes to operating status performance settings or address setting Monitor mode Used to verify contents of settings quantity of units current value of...

Страница 137: ...S1 MODE for more than 5 sec Normal mode Initial condition Press BS3 RETURN once Setting item selection SET Setting condition selection SET Press BS3 RETURN once Setting condition Contents display Pres...

Страница 138: ...ansmission status Used to check for the initial status of indoor outdoor transmission 2 Error contents Used to display an error content Initializing SEG1 SEG2 SEG3 Initializing completed OFF ON Blinki...

Страница 139: ...MODE BS1 RETURN BS3 RETURN BS3 SET BS2 Checking for description of data Press the SET BS2 button to set the 7 segment display to any of the monitoring items listed in the table on the following page P...

Страница 140: ...try 1 24 Contents of retry 1 cycle before Previous system retry 1 1 25 Contents of retry 2 cycle before Previous system retry 2 1 34 Days remaining till the next automatic leak detection Shows the rem...

Страница 141: ...setting 1 0 4 Slow defrost Normal Quick defrost 0 1 2 5 Te setting 1 0 5 Automatic Low 3 C 37 4 F Normal 6 C 42 8 F High sensible 7 C 44 6 F High sensible 8 C 46 4 F High sensible 9 C 48 2 F High sen...

Страница 142: ...door unit PCB 1 3 3 Possible 0 15 1 0 5 38 Number of connected RA indoor through BP unit 1 3 8 Possible 0 63 6 0 3 40 Cooling comfort setting see mode 2 No 8 1 4 0 Possible 0 7 0 7 41 Heating comfort...

Страница 143: ...e indoor unit are not shown on the outdoor display For inspecting error code on indoor unit please consult Display of the remote controller connected to the indoor units If there are no remote control...

Страница 144: ...or Slave unit 2 1 5 18 Overall retry of high pressure switch 1 8 E4 1 Low pressure sensor error Master unit E 4 0 1 2 Low pressure sensor error Slave unit 1 0 2 3 Low pressure sensor error Slave unit...

Страница 145: ...1 1 3 Discharge pipe high temperature error Slave unit 1 1 3 5 Discharge pipe high temperature error Slave unit 2 1 5 20 Compressor overheat error Master unit 2 0 21 Compressor overheat error Slave un...

Страница 146: ...ge pipe 2 thermistor Short Slave unit 1 2 5 30 Defective discharge pipe 2 thermistor Open Slave unit 2 3 0 31 Defective discharge pipe 2 thermistor Short Slave unit 2 3 1 J3 47 Defective compressor bo...

Страница 147: ...ressure sensor Short Slave unit 2 1 1 JC 6 Defective low pressure sensor Open Master unit J C 0 6 7 Defective low pressure sensor Short Master unit 0 7 8 Defective low pressure sensor Open Slave unit...

Страница 148: ...Defective inverter compressor 2 ROM Slave unit 1 3 9 49 Power supply inverter compressor 1 error Slave unit 1 4 9 50 Power supply inverter compressor 2 error Slave unit 1 5 0 L1 11 Instantaneous overc...

Страница 149: ...5 Inverter compressor 1 startup error Slave 1 0 5 6 Inverter compressor 1 startup error Slave 2 0 6 10 Inverter compressor 2 startup error Master 1 0 11 Inverter compressor 2 startup error Slave 1 1...

Страница 150: ...0 8 9 Defective reactor thermistor 1 Slave 2 Inverter PCB 2 0 9 10 Defective reactor thermistor 2 Master Inverter PCB 2 1 0 11 Defective reactor thermistor 2 Slave 1 Inverter PCB 2 1 1 12 Defective re...

Страница 151: ...1 power supply Slave 2 1 2 13 Defective capacitor in inverter 1 main circuit Slave 2 1 3 22 Shortage of inverter 2 power supply voltage Master 2 2 23 Open phase of inverter 2 power supply Master 2 3...

Страница 152: ...ion error 2 1 29 Branch selector BSVQ P connected to heat pump system 2 9 31 Multi unit combination error 3 1 38 Daikin Altherma indoor unit detected 3 8 39 Other hydrobox type than HXY A unit detecte...

Страница 153: ...N BS3 button and decide the item The present setting condition is blinked Press the SET BS2 button and set to the setting condition you want Press the RETURN BS3 button and decide the condition Press...

Страница 154: ...2 8 51 8 F 0 Standard 6 C 42 8 F 2 High sensible 7 C 44 6 F 3 High sensible 8 C 46 4 F 4 High sensible 9 C 48 2 F 5 High sensible 10 C 50 0 F 6 High sensible 11 C 51 8 F 7 9 Tc setting Used to make se...

Страница 155: ...evel 7 90 7 Level 8 95 8 31 Demand 2 setting Used to use a targeted power current level when the demand 2 control signal is input 2 3 1 Level 1 40 1 Level 2 50 2 Level 3 55 3 32 Normal demand setting...

Страница 156: ...ort setting Heating comfort setting 2 8 2 Eco 0 Mild 1 Quick 2 Powerful 3 83 Master user interface setting Master user interface allocation in case VRV DX indoor units and RA DX indoor units are used...

Страница 157: ...y Range SEG 1 SEG 2 SEG 3 SEG 1 SEG 2 SEG 3 96 Auxiliary heater maximum allowable temperature Auxiliary heater is allowed to energize when the ambient temperature is smaller than the auxiliary heater...

Страница 158: ...multiple systems need to operate as a zone should be same as the address set by the DIP switches on the related optional PCB DTA104A61 62 Default value 0 Field setting 1 31 The source for cool heat s...

Страница 159: ...e function and or power consumption limitation via external control adaptor DTA104A61 62 If the system needs to be running under night time low noise operation or under power consumption limitation co...

Страница 160: ...system it is necessary to apply a setting which will open required valves in the refrigerant circuit so the reclaim of refrigerant or vacuuming process can be done properly Default value 0 To activat...

Страница 161: ...n the inverter checker module All 3 phases and neutral are available and Inverter PCB control is active Check if the green LED HAP on the inverter PCBs are blinking normal approx 1 second If LEDs are...

Страница 162: ...r transistor check mode RXYQ TA disconnect fasten U V W from compressor step1 mode 2 code 28 set 01 02 Return 2x step 2 mode 2 code 28 set 02 01 Return 2x OR exit mode 2 mode button Check 1 Check 2 Ch...

Страница 163: ...unit this setting defines the level power consumption limitation that will be applied for step 2 The level is according to the table Value 2 30 Power consumption limitation approximately 1 60 2 65 3...

Страница 164: ...40 m 131 ft the setting 2 35 should be changed to 0 Value 2 32 Restriction reference 0 default Function not active 1 Follows 2 30 setting 2 Follows 2 31 setting Value 2 34 Indoor fan tap setting 0 de...

Страница 165: ...ter module are disabled permanent 2 39 Emergency operation Slave 1 To disable permanent compressor operation of Slave 1 unit of a multi outdoor system RXYQ TA Default value 0 Compressor operation enab...

Страница 166: ...ference between the lowest indoor unit and the outdoor unit exceeds 50 m 164 ft the setting 2 49 has to be changed to 1 2 51 Master Slave setting Multi When 2 or 3 modules are installed as a multi out...

Страница 167: ...ror generation In case an indoor unit needs maintenance or repair on the electric side it is possible to keep the rest of the VRV DX indoor units operating without power supply to some indoor unit s D...

Страница 168: ...t temperature is smaller than the auxiliary heater maximum allowable temperature Value 2 78 Heat pump lockout temperature 0 default 26 1 C 15 F 1 23 3 C 10 F 2 20 5 C 5 F 3 17 7 C 0 F 4 15 C 5 F 5 12...

Страница 169: ...release differential Auxiliary heater is not allowed to energize when the outdoor ambient temperature is recovered by differential above the auxiliary heater maximum allowable temperature Value 2 98...

Страница 170: ...nings Are all units securely installed z Dangerous for turning over during storm z Possible damage to pipe connections Is the earth wire installed according to the applicable local standard Dangerous...

Страница 171: ...se a megger tester for other circuits than 400 V or 200 V circuit 1 Measure to be taken against decreased insulation resistance in the compressor If the compressor is left to stand for an extended per...

Страница 172: ...e field settings with the master unit Field settings made with the slave unit will be all invalid The check operations shown below will be automatically initiated Check for erroneous wirings Check for...

Страница 173: ...ge Abnormality 192 3 12 Blower Motor Stops for Over Under Voltage 193 3 13 Electronic Expansion Valve Coil Abnormality Dust Clogging 194 3 14 Drain Level above Limit 195 3 15 Capacity Determination De...

Страница 174: ...tting after Replacing Outdoor Unit Main PCB Abnormality or Combination of PCB Abnormality 259 3 54 Refrigerant Shortage 260 3 55 Reverse Phase Open Phase 261 3 56 Power Supply Insufficient or Instanta...

Страница 175: ...Procedure 298 4 8 Thermistor Check 299 4 9 Pressure Sensor Check 302 4 10 Broken Wire Check of the Relay Wires 303 4 11 Fan Motor Connector Check Power Supply Cable 304 4 12 Fan Motor Connector Check...

Страница 176: ...ng in a room The model must be selected to match the air conditioning load In cooling Too many heat sources e g OA equipment located in a room 4 The system does not operate The system stops and immedi...

Страница 177: ...cording to the setting Even pressing the airflow rate setting button makes no changes in the airflow rate In heating operation when the room temperature reaches the set degree the outdoor unit will st...

Страница 178: ...f operating sounds changes The reason is that the compressor changes the operating frequency Normal operation 12 Dust comes out from the system Dust comes out from the system when it restarts after th...

Страница 179: ...routinely lifted become horizontal during heating operation No defect Set louver to horizontal P0 during thermostat OFF 9 Although people are not present the infrared presence sensor detects human pr...

Страница 180: ...Basic Screen Operation mode changeover Fan speed control Menu display Confirmation of each setting On Off Cancel Operation lamp Press the Cancel button for 4 seconds or more Press the Cancel button on...

Страница 181: ...Operation lamp Operation Status Display Abnormal shutdown The system stops operating The operation lamp green starts to blink The message Error Push Menu button will blink at the bottom of the screen...

Страница 182: ...cation of the error code blinks 4 Press the UP or DOWN button to change the error code upper digit until the receiver of the remote controller starts to beep The upper digit of the code changes as sho...

Страница 183: ...ION TEST button to enter the inspection mode 7 When MODE button is pressed or no button is pressed for 1 minute equipment returns to normal mode 6 Change the lower digit with UP or DOWN button If no b...

Страница 184: ...parameters to function 203 C9 2 l Suction air thermistor abnormality 200 Remote sensor abnormality 204 CA l Discharge air thermistor abnormality 200 CC k Humidity sensor system abnormality 205 CE 1 k...

Страница 185: ...ing outdoor unit main PCB abnormality or combination of PCB abnormality 259 System U0 1 k Refrigerant shortage 260 U1 l Reverse phase open phase 261 U2 l Power supply insufficient or instantaneous abn...

Страница 186: ...at the dust collection port as well as in the brush unit S shaped pipe and dust box Furthermore check for any stains of the light receiving and emitting parts of the infrared unit AH 06 Air filter rot...

Страница 187: ...external ON OFF terminal Supposed Causes Actuation of external protection device Improper field setting Defective indoor unit PCB Troubleshooting ON OFF input from outside mode No 12 first code No 1 h...

Страница 188: ...between external input terminals Supposed Causes Actuation of external protection device Defective indoor unit PCB Indoor unit fuse blown Troubleshooting Fuse F1U is blown External protection device...

Страница 189: ...volatile memory Maintains memory contents even when the power supply is turned OFF Supposed Causes Defective indoor unit PCB External factor Noise etc Troubleshooting Turn the power supply OFF then th...

Страница 190: ...or disconnecting connectors or parts may be damaged Replace the float switch S1L Modify the float switch s connection and turn ON again Connect the drain pump and turn ON again Connect either a short...

Страница 191: ...ES NO NO The drain pump works when the power supply is reset for the indoor unit The voltage of drain pump terminals 2 is 208 230 V within 5 minutes of resetting the power supply A Model 1 Float switc...

Страница 192: ...Supposed Causes Broken wires in short circuit of or disconnection of connectors from the fan motor harness Defective fan motor Broken wires or defective insulation Abnormal signal output from the fan...

Страница 193: ...ly rotated by hand Replace the indoor fan motor M1F NO Replace the indoor fan motor M1F NO YES Are there any foreign matter around the fan YES Is the resistance between the pins more than the judgemen...

Страница 194: ...XFQ09 30P X20A Relay connector FXFQ36 48P X20A FXUQ A X20A Relay connector FXEQ P X20A FXMQ07 12PB X8A FXAQ P X20A Measuring point FG GND Vsp GND Vcc GND Vdc GND Criteria 1 M or more 100 k or more 100...

Страница 195: ...voltage to the fan Supposed Causes Defective indoor fan motor Broken wires Defective contact Troubleshooting NO YES YES Is the X4A connector securely connected NO Is the power of 12 VDC supplied betw...

Страница 196: ...signal of the fan motor Error from the current flow on the fan PCB when the fan motor starting operation Error Decision Conditions An overcurrent flows The rotation speed is less than a certain level...

Страница 197: ...PCB A2P NO Replace the indoor fan motor YES NO YES The fan can be moved lightly by hand after the fan motor connector of the fan PCB A2P is removed Replace the fan motor NO YES NO YES There is a fore...

Страница 198: ...U terminals of the motor connector with five conductors Replace the indoor fan motor YES NO Between Vcc and GND terminals and between GND and Hw Hv or Hu terminals are short circuited Replace the indo...

Страница 199: ...e in operation Supposed Causes Defective power supply for the indoor fan motor Clogged drain piping Actuation of the indoor unit safety device Defective contact in the fan wiring circuit Troubleshooti...

Страница 200: ...alities Checks the rotation speed at 5 second intervals using the feedback of the fan motor Performs rotation sampling 720 times takes approx one hour and if the rotation speed falls below 50 rpm over...

Страница 201: ...f the information shows Motor Lost Control or Current Trip status it will be deemed a MOTOR TRIP abnormal operation The system stops operating Error Reset Conditions If the indoor unit stops receiving...

Страница 202: ...s If during this the rotation command is stopped the 5 second interval check is halted but the counted number will be kept When the rotation command is restarted the checks will resume Error Reset Con...

Страница 203: ...unit is a model equipped with a swing flap function The swing motor works when the power supply is turned OFF and then restart The relay cable is short circuited or disconnected Caution Be sure to tu...

Страница 204: ...M2S M3S M4S FXEQ P X36A M1S M2S M3S M4S FXHQ M X6A M1S FXAQ P X36A M1S Replace the power supply relay cable Replace the defective swing motor 2 Take the flap cam mechanism apart reassemble and turn O...

Страница 205: ...wiring Instantaneous power failure others Troubleshooting Check the condition of the power supply 1 Check if power supply voltage is 208 230 V 10 2 Check if there is power open phase or defective wir...

Страница 206: ...Decision Conditions If the information shows Over Under Voltage status it will be deemed a MOTOR VOLTS abnormal operation Error Reset Conditions If the information is normal the error will be cleared...

Страница 207: ...of suction air R2T temperature of liquid pipe of heat exchanger Supposed Causes Defective electronic expansion valve coil Defective indoor unit main PCB Defective relay cables Troubleshooting Refer to...

Страница 208: ...s not in operation Error code is displayed but the system operates continuously Supposed Causes Humidifier unit optional accessory leaking Defective drain pipe upward slope etc Defective indoor unit m...

Страница 209: ...the capacity code is not saved to the PCB and the capacity setting adaptor is not connected When a capacity that does not exist for that unit is set Supposed Causes The capacity setting adaptor was no...

Страница 210: ...1P Defective fan PCB A2P External factor such as instantaneous power failure Troubleshooting Under above field setting mode second code No is 01 NO NO YES Replace the fan PCB A2P YES YES Is the connec...

Страница 211: ...remove the connector X70A of indoor unit PCB A1P 2 Short circuit X70A 3 After turning ON the power check below numbers under field setting from remote controller Confirmation Second code No at the co...

Страница 212: ...message and determined as such by the indoor unit the indoor unit will execute a retry If everything fails for 5 seconds it is deemed to be a transmission abnormality Error Reset Conditions If the in...

Страница 213: ...04 for C9 for FXTQ TA models Refer to page 299 Is the thermistor normal Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged 5 k to 90 k R...

Страница 214: ...etting adaptor Field setting error Troubleshooting NO Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Was indoor unit main PCB A1P re...

Страница 215: ...ion on the manufacturer ID and output of the fan motor when initializing the fan motor If those figures are not the values recognized by the indoor unit it will be deemed abnormal operation If deemed...

Страница 216: ...cluded among the periodic control status information Error is issued when the information shows abnormality Error Decision Conditions If the parameter information shows abnormality it will be deemed a...

Страница 217: ...Troubleshooting Note 1 Connector and indoor unit PCB Refer to page 299 Is the optional remote sensor is installed Field setting 10 20 2 is set to 03 Connector is connected to the indoor unit PCB 1 Res...

Страница 218: ...the check mode 2 To display the code the INSPECTION TEST button of the remote controller must be pressed and held in the normal mode 3 If CC is displayed even after replacing the humidity sensor PCB...

Страница 219: ...sor connector CE 01 Defective infrared floor sensor Temperature compensation circuit disconnection CE 02 Defective infrared floor sensor Temperature compensation short circuit CE 03 Defective infrared...

Страница 220: ...refer to sensor and address data No 22 25 Connect the connector correctly Connect the connector correctly NO YES YES Is the connection of the adaptor PCB connector X9A normal NO YES YES Is the connect...

Страница 221: ...refer to sensor and address data No 26 Connect the connector correctly Connect the connector correctly NO YES YES Is the connection of the adaptor PCB connector X9A normal NO YES YES Is the connectio...

Страница 222: ...infrared floor sensor output refer to sensor and address data No 26 Is the connection of the adaptor PCB connector X9A normal Is the connection of the sensor connector normal Displays by the above ver...

Страница 223: ...infrared floor sensor output refer to sensor and address data No 26 Is the connection of the adaptor PCB connector X9A normal Is the connection of the sensor connector normal Displays by the above ver...

Страница 224: ...r Defective remote controller PCB Troubleshooting Note 1 How to delete the history of error codes Press the ON OFF button for 4 seconds and more while the error code is displayed in the inspection mod...

Страница 225: ...tion between the indoor unit and the outdoor unit are not normal Supposed Causes Defective outdoor unit main PCB A1P Disconnection of the inside outside relay wires Troubleshooting Return to normal YE...

Страница 226: ...ution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged Correct the wiring Normal Keep operating It is possibly caused by temporary oil return...

Страница 227: ...X101A Wiring disconnection Defective outdoor unit main PCB Troubleshooting Sub code 06 to 08 NO YES Is the system reset to normal Is X101A connected The error is considered to have resulted from exter...

Страница 228: ...CB A1P Momentary power failure Defective high pressure sensor Troubleshooting NO YES YES Replace the high pressure switch RXYQ72 120TA S1PH RXYQ144 168TA S1PH S2PH Remedy defective points YES Are the...

Страница 229: ...he high pressure value and the actual value measured by pressure sensor are the same The high pressure sensor is normal and pressure detection with the outdoor unit main PCB is also normal The high pr...

Страница 230: ...normal 1 NO YES 1 Mount a pressure gauge on the low pressure service port 2 Reset the operation using the remote controller and then restart the operation Is the stop valve open The low pressure senso...

Страница 231: ...te 1 Make a comparison between voltage measured by the pressure sensor and that read by the pressure gauge The pressure sensor makes measurement of voltage at its connector block to convert it to pres...

Страница 232: ...ubleshooting Make proper wire connections Make proper wire connections NO NO NO NO YES YES YES YES Power OFF Is the connection line of the relevant compressor normal Are wire connections made to phase...

Страница 233: ...ization failure may have occurred Check for the refrigerant system YES YES NO Replace the inverter PCB 2 2 RXYQ72 120TA A3P RXYQ144 168TA A3P A6P NO The error recurs at startup Continue operation The...

Страница 234: ...the system will return an alarm if there is any operational unit other than that applicable to E6 or determine to be error if not Supposed Causes Defective compressor Defective high pressure sensor D...

Страница 235: ...onvert it to pressure Refer to page 295 Refer to page 302 NO YES Replace the outdoor unit main PCB A1P NO Replace the inverter PCB RXYQ72 120TA A3P RXYQ144 168TA A3P A6P CHECK 4 Is the power transisto...

Страница 236: ...e fan motor runs Error Decision Conditions Overcurrent is detected from the inverter PCB or the fan PCB Detecting overcurrent 4 times will shut down the system The fan revolutions fall below a given l...

Страница 237: ...Be sure to turn off the power switch before connecting or disconnecting connectors or parts may be damaged A Check for any wire connection errors in 2 units of fan motors Fan motor 1 Power supply cabl...

Страница 238: ...n inverter PCB 2 blinks but that on fan PCB 1 does not blink Replace the relevant fan motor YES Signal cable has caused short circuit between Vcc and Gnd and between UVW and Gnd Turn ON the power supp...

Страница 239: ...Detection Detect according to whether or not there is continuity across the electronic expansion valve coils Y1E Y2E Error Decision Conditions When no current flows through common COM at the time of t...

Страница 240: ...ected Properly and securely connect the connector NO YES The resistance of the electronic expansion valve coil is normal 1 Replace the electronic expansion valve NO Replace the outdoor unit main PCB A...

Страница 241: ...ormally high i e 135 C 275 F or more When discharge pipe temperature sharply rises remains at 120 C 248 F or more for a period of consecutive 10 minutes When compressor surface temperature becomes abn...

Страница 242: ...er Reset the system operation and then restart it Are the characteristics of the discharge pipe and compressor body thermistors normal 1 All thermistors are normal and temperature detection with the o...

Страница 243: ...essure of each part Error Decision Conditions When the following wet state continues for a period of 90 minutes an alert is issued An error is defined for 120 minutes Wet state in outdoor units When t...

Страница 244: ...S NO Replace the indoor unit electronic expansion valve Replace the relevant thermistor YES YES Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may...

Страница 245: ...efrigerant overcharged Disconnection of outdoor air thermistor Disconnection of heat exchanger deicer thermistor Disconnection of liquid pipe temperature thermistor Troubleshooting Refer to page 299 C...

Страница 246: ...disabled during the compressor stops running Supposed Causes Defective connection of jumpers between PCB Defective outdoor unit main PCB A1P Defective inverter PCB Troubleshooting Check for the transm...

Страница 247: ...page 304 Properly connect the connector NO YES Replace the fan motor NO YES Turn OFF the power supply Check for the connector of the fan motor Replace the fan PCB RXYQ72TA A4P RXYQ96 120T A4P A5P RXY...

Страница 248: ...iring disconnection or short circuit in it Supposed Causes Defective connection of thermistor Defective thermistor Defective outdoor unit PCB Troubleshooting Thermistor is connected to the connector R...

Страница 249: ...T X18A J3 Discharge pipe M1C thermistor R21T X29A R21T X29A Group connector R21T X29A Group connector Discharge pipe M2C thermistor R22T Compressor body thermistor R8T J5 Accumulator inlet thermistor...

Страница 250: ...Detect according to temperature detected with the high pressure sensor Error Decision Conditions The high pressure sensor is short circuit or open circuit Pressure range 0 4 3 MPa 0 624 psi Supposed C...

Страница 251: ...ation and restart operation 1 Mount a pressure gauge on the high pressure service port 2 Connect the Service Checker for VRV systems Caution Be sure to turn off the power switch before connecting or d...

Страница 252: ...ion Detect according to temperature detected with the low pressure sensor Error Decision Conditions The low pressure sensor is short circuit or open circuit Pressure range 0 1 7 MPa 0 247 psi Supposed...

Страница 253: ...the characteristics of the low pressure sensor normal Replace the low pressure sensor S1NPL NO YES YES YES Reset the operation and then restart the operation 1 Mount a pressure gauge on the low press...

Страница 254: ...ed during the output of waveform before compressor startup Detect according to current value detected with the current sensor during synchronous operation for startup Error Decision Conditions When ov...

Страница 255: ...2 Replace the inverter PCB 1 1 RXYQ72 120TA A3P RXYQ144 168TA A3P A6P 2 RXYQ72TA A4P RXYQ96 120T A4P A5P RXYQ144 168TA A4P A7P NO YES Turn OFF the power supply once and then turn it ON again 12 14 to...

Страница 256: ...face thermistor is more than the specified temperature Supposed Causes Defective connection of harness Defective reactor surface thermistor Defective inverter PCB Troubleshooting Is reactor harness co...

Страница 257: ...ration Field factor Power module temperature may have risen due to high outdoor air temperature Turn ON the power supply and then press the ON button continuously Does the error recur Replace the inve...

Страница 258: ...ailure mechanical lock Defective inverter PCB Troubleshooting Compressor inspection Power OFF Open the stop valve YES NO Is the stop valve open YES Caution Be sure to turn off the power switch before...

Страница 259: ...e insulation resistance of the relevant compressor is 100 k or less Replace the compressor 1 1 RXYQ72 120TA M1C RXYQ144 168TA M1C M2C YES The coil of the relevant compressor has caused wiring disconne...

Страница 260: ...iring Defective inverter PCB Troubleshooting Power OFF Open the stop valve YES NO Is the stop valve open YES Caution Be sure to turn off the power switch before connecting or disconnecting connectors...

Страница 261: ...S The insulation resistance of the relevant compressor is 1 M or less to ground Replace the compressor 1 1 RXYQ72 120TA M1C RXYQ144 168TA M1C M2C YES The coil of the relevant compressor has caused wir...

Страница 262: ...models Method of Error Detection Detect error according to the signal waveform of compressor Error Decision Conditions When compressor startup operation has not been completed Supposed Causes The stop...

Страница 263: ...o power applied for a period of 6 hours or more Eliminate the melting state of refrigerant YES Caution Be sure to turn off the power switch before connecting or disconnecting connectors or parts may b...

Страница 264: ...YQ144 168TA A3P A6P NO YES NO There is wiring disconnection in the compressor Replace the inverter compressor YES Is the insulation resistance of the relevant compressor 100 k or more Refrigerant is m...

Страница 265: ...se filter External factors e g noise Defective inverter compressor Defective fan motor Troubleshooting Replace with a proper PCB NO Properly connect the connector NO YES The insulation resistance of t...

Страница 266: ...computer normal monitor indication lamp green on the control PCB A1P is blinking Properly connect the connector NO YES Is the connector between the control PCB and the sub PCB securely connected Prope...

Страница 267: ...ce through PCB Error Decision Conditions When power supply voltage imbalance exceeds approximately 12 V Error is not decided while the unit operation is continued P1 will be displayed by pressing the...

Страница 268: ...e contact of noise filter Replace the inverter PCB RXYQ72 120TA A3P RXYQ144 168TA A3P A6P YES Explanation to users Use the document Notice of Inspection Results attached to spare part Hand the Notice...

Страница 269: ...fective reactor thermistor Defective inverter PCB Troubleshooting Check in Monitor Mode 12 14 ton are equipped with 2 compressors Check for the compressor 1 or 2 applicable to the error code P3 while...

Страница 270: ...r stops running 1 Radiation fin thermistor 2 Thermistor located in PCB circuit 3 Heat sink thermistor Error Decision Conditions When the resistance of the thermistor comes to a value equivalent to ope...

Страница 271: ...ermistor normal The insulation resistance of the relevant inverter compressor is not more than 100 k The insulation resistance of the relevant fan motor is not more than 1 M Turn ON the power supply D...

Страница 272: ...pped with 2 compressors Check for the compressor 1 or 2 applicable to the error code PJ while in monitor mode of the outdoor unit PCB Is the type of the inverter PCB correct Is the type of the fan PCB...

Страница 273: ...value by using pressure gauge in operation 2 Compare the actual measurement value by pressure sensor with the value by the pressure gauge To gain actual measurement value by pressure sensor measure th...

Страница 274: ...Supposed Causes Power supply reverse phase T phase open phase Defective outdoor unit PCB Troubleshooting There is an open phase at the power supply T phase terminal section X1M of the outdoor unit Op...

Страница 275: ...capacitor of the main circuit in the inverter PCB Error Decision Conditions When the voltage in the DC circuit between diode module and power module falls below specified voltage Supposed Causes Abno...

Страница 276: ...120TA M1C RXYQ144 168TA M1C M2C Check for power supply conditions 1 Power supply voltage falls within the standard range 2 Any open phase in the power supply wiring or any wrong wiring 3 Imbalance in...

Страница 277: ...supply and then press the ON button Replace the inverter PCB 1 If the inverter PCB gets severely damaged the compressor and the fan motor may have been damaged Replace the inverter PCB 1 If the inver...

Страница 278: ...code and then go to the following Conduct the test operation The test operation has not been conducted U3 03 Check for the refrigerant piping and then conduct the test operation U3 04 Conduct the tes...

Страница 279: ...e outdoor unit PCB Troubleshooting Do all indoor unit remote controllers in the same refrigerant system display U4 Are the indoor outdoor and outdoor outdoor transmission wirings normal Has the indoor...

Страница 280: ...V Does the microcomputer normal monitor indication lamp HAP on the outdoor unit PCB blink Disconnect the outdoor outdoor transmission wiring Does the system normally operate with a single transmissio...

Страница 281: ...cording to relevant error codes NO YES Check controller indoor units 1 Some error about thermistor or fan motor electronic expansion valve or defective PCB 2 Test operation was interrupted by button B...

Страница 282: ...roller PCB Transmission error caused by noise Troubleshooting Using 2 remote controllers control SS1 of both remote controllers is set to MAIN All indoor unit PCB microcomputer monitors blink Operatio...

Страница 283: ...itions When transmission is not carried out normally for a certain amount of time Supposed Causes Connection error of transmission wirings between outdoor unit and external control adaptor for outdoor...

Страница 284: ...or is mounted Error code Sub code Error code Sub code Error code Sub code Error code Sub code Error code Sub code Error code Sub code Error code Sub code Error code Sub code Go to Diagnosis Flowchart...

Страница 285: ...door unit Diagnosis Flow 1 Supply power to the outdoor unit Is power supplied to the outdoor unit Is the normal operation monitor LED on the outdoor unit main PCB blinking Is the normal operation moni...

Страница 286: ...the error recur when setting Cool Heat selection for the external control adaptor for outdoor unit to IND NO NO NO NO NO NO NO NO YES YES YES YES YES YES YES YES Replace the outdoor unit main PCB A1P...

Страница 287: ...ion wirings to multi slave 1 have caused wiring disconnection in them or are being disconnected Modify the outdoor unit multi transmission wirings and then reset the power supply Replace the outdoor u...

Страница 288: ...supply Replace the outdoor unit main PCB A1P Replace the outdoor unit main PCB A1P Rectify the error in the connection of transmission wirings and then reset the power supply One of outdoor unit multi...

Страница 289: ...r a certain amount of time Supposed Causes Transmission error between main and sub remote controller Connection between sub remote controllers Defective remote controller PCB Troubleshooting SS1 of bo...

Страница 290: ...and outdoor units Defective electronic expansion valve of other indoor unit Defective indoor unit PCB of other indoor unit Improper connection of transmission wiring between indoor and outdoor unit Tr...

Страница 291: ...occurs in data by the type of refrigerant between indoor and outdoor units The number of indoor units connected is out of the allowable range Error Decision Conditions The error decision is made as so...

Страница 292: ...onnectors or parts may be damaged Go to Diagnosis Flow 1 Connection of excess indoor units Go to Diagnosis Flow 2 Connection of incorrect models of indoor units Go to Diagnosis Flow 3 Improper combina...

Страница 293: ...1P Refer to Incorrect electric heater capacity setting troubleshooting 1 Excess indoor units are connected Check for the connection to connect the proper number of indoor units NO Diagnosis Flowchart...

Страница 294: ...e outdoor unit main PCB A1P Check for the model of outdoor unit Make setting again and then reset the power supply Replace the spare PCB NO YES Replace the outdoor unit main PCB A1P Was the outdoor un...

Страница 295: ...O Correct the multi combination of outdoor units Diagnosis Flowchart 5 Is the multi combination of outdoor units proper NO Was the outdoor unit PCB replaced with a spare PCB Replace the outdoor unit m...

Страница 296: ...pplicable value Operation After Error Codes Decided The error code UA 17 is displayed on the remote controller Indoor units can operate continuously Incorrect setting is kept Even if the ON condition...

Страница 297: ...t of its own on any other indoor unit Error Decision Conditions The error decision is made as soon as the abnormality aforementioned is detected Supposed Causes Address duplication of centralized cont...

Страница 298: ...transmission between indoor unit and centralized controller is normal Error Decision Conditions When transmission is not carried out normally for a certain amount of time Supposed Causes Transmission...

Страница 299: ...ndoor unit changed Make correct setting of the central control group No Check outdoor units to which the refrigerant system is connected Check whether or not there are no problems with the transmissio...

Страница 300: ...oltage between the terminals F1 and F2 in the range of 15 2 to 17 6 VDC Replace the centralized controller Centralized controller Normal OK Correct the wiring NG A NO Correct the wiring NG YES YES Dis...

Страница 301: ...ansmission wiring between indoor outdoor units and outdoor outdoor units Failure to execute check operation Defective indoor unit PCB Stop valve is not opened Troubleshooting Is indoor outdoor and out...

Страница 302: ...ls All outdoor unit models Method of Error Detection Detect an indoor unit with no auto address setting Error Decision Conditions The error decision is made as soon as the abnormality aforementioned i...

Страница 303: ...m Disconnect the outdoor outdoor unit transmission wiring to create the one system status and then check whether or not the system is normal NO YES YES After fixing incorrect wiring press and hold the...

Страница 304: ...xingofnon condensablegas Decreased airflow rate Decreased fan output Defective fan motor Defective outdoor unit main PCB Including capacity setting High airflow passage resistance Dirty filter Obstacl...

Страница 305: ...frigerant Degradation in condensing capacity Refrigerant shortage Moisture choke Dirty evaporator Decreased airflow rate Decreased fan output Defective fan motor Can the fan motor be rotated with hand...

Страница 306: ...outdoor unit main PCB Defective valve coil Defective low pressure sensor Defective subcooling heat exchanger outlet thermistor Defective valve body Defective subcooling electronic expansion valve con...

Страница 307: ...rheated degree 10 C 50 F and over 2 Discharge gas superheated degree 45 C 113 F and over except immediately after compressor starts up or is running under drooping control Use the above values as a gu...

Страница 308: ...g the digital type of multimeter make measurement in diode check mode No Measuring point Judgement Criteria Remarks No Measuring point Judgement Criteria Remarks 1 P2 U 2 15 k 1 P2 U 1 2 V and more Du...

Страница 309: ...Low pressure Frequency High pressure gradually rises with increase in frequency Subcooling degree becomes higher Liquid connection pipe temperature lowers Low pressure rises due to decreased compress...

Страница 310: ...minimum level Fan control is activated for high pressure protection under cooling control at low outdoor air temperature i e the fan is hunting at high pressure High pressure drops with decrease in c...

Страница 311: ...iod of 1 hour or more and then check to be sure that the vacuum gauge reading does not rise If the reading rises moisture may have remained in the system or refrigerant leakage may have been caused 3...

Страница 312: ...Discharge pipe H R3T Accumulator inlet A R4T Heat exchanger liquid pipe A R5T Subcooling heat exchanger liquid pipe A R6T Subcooling heat exchanger gas pipe A R7T Hear exchanger deicer A RXYQ96 120TA...

Страница 313: ...31 44 31 4796 31 51 31 41 20 68 24 95 25 0060 25 02 24 98 25 77 19 94 20 0000 20 00 20 00 30 86 16 04 16 1008 16 10 16 12 35 95 12 99 13 0426 13 04 13 07 40 104 10 58 10 6281 10 63 10 67 45 113 8 669...

Страница 314: ...0683 12 64 130 0697 13 1222 40 104 10 6490 10 30 106 1517 10 7042 45 113 8 7269 8 439 87 0725 8 7834 50 122 7 1905 6 954 71 7703 7 2479 55 131 5 9524 5 761 59 4735 6 0131 60 140 4 9536 4 797 49 5180...

Страница 315: ...3 3 5 4 VDC kg cm2 psi MPa PH PL PH MPa VH 0 5 PL MPa VL 0 5 PH High pressure MPa PL Low pressure MPa VH Output Voltage High Side VDC VL Output Voltage Low Side VDC 4 15 3 0 4 15 3 0 1 7 3 0 1 7 3 0...

Страница 316: ...ecking indoor outdoor unit transmission wiring for broken wires for checking the indoor outdoor unit transmission wiring of the Outdoor Unit C for broken wires Turn OFF the power supply to all equipme...

Страница 317: ...power supply 2 Measure the resistance between Vcc and each phase of U V W and GND and each phase at the motor side connectors 5 core wire to check that the values are balanced within the range of 20 w...

Страница 318: ...judge the condition The normal products will show the following conditions 1 No continuity between 1 and 2 2 Resistance value between 1 and 3 is approx 300 3 Resistance value between 1 and 5 is appro...

Страница 319: ...SiUS341615E Appendix 306 Part 7 Appendix 1 Wiring Diagrams 307 1 1 Outdoor Unit 307 1 2 Indoor Unit 313 1 3 Air Treatment Equipment 320...

Страница 320: ...Wiring Diagrams SiUS341615E 307 Appendix 1 Wiring Diagrams 1 1 Outdoor Unit RXYQ72TAYDU 3D106438A...

Страница 321: ...SiUS341615E Wiring Diagrams Appendix 308 RXYQ96 120TAYDU 2D106439A...

Страница 322: ...Wiring Diagrams SiUS341615E 309 Appendix RXYQ144 168TAYDU 2D106440A...

Страница 323: ...SiUS341615E Wiring Diagrams Appendix 310 RXYQ72TATJU 3D106435A...

Страница 324: ...Wiring Diagrams SiUS341615E 311 Appendix RXYQ96 120TATJU 2D106436A...

Страница 325: ...SiUS341615E Wiring Diagrams Appendix 312 RXYQ144 168TATJU 2D106437A...

Страница 326: ...OR FOR WIRING TO TERMINAL BLOCK X2M OF INDOOR UNIT DIRECTORY 6 X8A X33A X35A X36A ARE CONNECTED WHEN THE OPTIONAL ACCESSORIES ARE BEING USED IN CASE OF USING A SELF CLEAN PANEL SEE THE WIRING DIAGRAM...

Страница 327: ...OFF CONTROL OPERATION CAN BE SELECTED BY REMOTE CONTROLLER IN DETAILS REFER TO THE INSTALLATION MANUAL ATTACHED TO THE UNIT 5 SYMBOLS SHOW AS FOLLOWS RED RED BLK BLACK WHT WHITE YLW YELLOW PNK PINK OR...

Страница 328: ...R DRAIN PUMP THERMAL PROTECTOR M1F EMBEDDED THERMISTOR AIR THERMISTOR COIL 1 THERMISTOR COIL 2 FLOAT SWITCH TRANSFORMER 208 230V 25V PHASE CONTROL CIRCUIT TERMINAL BLOCK TERMINAL BLOCK ELECTRONIC EXPA...

Страница 329: ...54PBVJU INPUT FROM OUTSIDE NOTE 3 A 1 P A 3 P Z 1 C t t t t GRN YLW POWER SUPPLY 1 208 230V 60Hz FOR FXMQ15 18 24 30 36 48 54PBVJU TO X70A A1P TO X1M NOTE 6 FOR FXMQ07 09 12PBVJU TO X1M MS 3 M 1 TRANS...

Страница 330: ...OR WIRELESS REMOTE CONTROLLER 3D048116B R1T R2T R3T GRN YLW GRN A2P A3P SS1 H1P t t t A1P X2A BS1 H2P H3P SS2 X14A X18A X19A H4P X27A NE V1R RED C5 L1 X1A X1A Z1F PS F1U WHT PNK L2 T2 INPUT FROM OUTSI...

Страница 331: ...EMOTE CONTROLLER CONNECT IT TO THE UNIT IN ACCORDANCE WITH THE ATTACHED INSTALLATION MANUAL 4 WHEN CONNECTING THE INPUT WIRES FROM OUTSIDE FORCED OFF OR ON OFF CONTROL OPERATION CAN BE SELECTED BY REM...

Страница 332: ...VOLTAGE FIELD JUNCTION TERMINAL PLUG CONNECTION EQUIPMENT GND FIELD GROUND X1A X3A X38A BS1 X12A X13A HAP X8A INDOOR UNIT PCB THERMISTOR HEAT EXCHANGER 1 2 MPU MULTI TENANT OPTION EEV COIL M K1R K3R...

Страница 333: ...SiUS341615E Wiring Diagrams Appendix 320 1 3 Air Treatment Equipment 1 3 1 Outdoor air Processing Unit FXMQ48 72 96MFVJU 3D065426D...

Страница 334: ...Wiring Diagrams SiUS341615E 321 Appendix 1 3 2 Energy Recovery Ventilator VAM Series VAM300 470 600GVJU 3D073269C...

Страница 335: ...SiUS341615E Wiring Diagrams Appendix 322 VAM1200GVJU 3D073270C...

Страница 336: ...Revision History Month Year Version Revised contents 02 2017 SiUS341615E First edition...

Страница 337: ...nauthorized parts and accessories or improper installation of parts and accessories can result in water or refrigerant leakage electrical shock fire or explosion z Read the user s manual carefully bef...

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