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Mitsubishi Electric PURY-(E)P200, Service Handbook, Page: 147 / 362

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Mitsubishi Electric PURY-(E)P200 Service Handbook Download Page 147

[

VII

 Control ]

- 1

38

 -

HWE0713A

GB

2.  Operations in each mode
(1) Cooling operation

 Cooling operation

Test run mode 

ON

 Thermostat 

ON

 3-minute restart 

prevention

*Note 1

YES

YES

YES

NO

NO

NO

4-way valve OFF

1. Inverter frequency control
2. Indoor unit LEV, Oil returnLEV control
3. Solenoid valve control
4. Outdoor unit fan control
5. BC controller solenoid valve control
6. BC controller control

Normal operation

During test run mode

Indoor unit fan 
operation

1. Inverter output  0Hz
2. Indoor unit LEV, Oil return LEV fully closed
3. Solenoid valves OFF
4. Outdoor unit fan stop
5. BC controller solenoid valves OFF
6. BC controller LEV fully closed

Unit in the stopped state

2

3

*Note 1. The indoor fan operates at the set notch under cooling mode regardless of the 
              ON/OFF state of the thermostat.

Summary of Contents for PURY-(E)P200

Page 1: ...Service Handbook AIR CONDITIONERS Models PURY EP200 E P250 E P300 P350 P400YHM A PURY EP400 E P500 P550 E P600YSHM A PURY P650 P700 P750 P800YSHM A PURY EP450 EP550YSHM A1 2nd ...

Page 2: ...or fixed cables may produce heat and start a fire Take appropriate safety measures against strong winds and earthquakes to prevent the unit from falling If the unit is not installed properly the unit may fall and cause serious injury to the person or damage to the unit Do not make any modifications or alterations to the unit Consult your dealer for repair Improper repair may result in water leakag...

Page 3: ...er leakage electric shock and or fire After completing the service work check for a gas leak If leaked refrigerant is exposed to a heat source such as a fan heater stove or electric grill poisonous gases may be produced Do not try to defeat the safety features of the unit Forced operation of the pressure switch or the temperature switch by defeating the safety features of these devices or the use ...

Page 4: ...igerant is charged into the system the com position of the refrigerant in the cylinder will change and may result in performance loss Use a vacuum pump with a reverse flow check valve If a vacuum pump that is not equipped with a reverse flow check valve is used the vacuum pump oil may flow into the refrigerant cycle and cause the refrigerating machine oil to deteriorate Prepare tools for exclusive...

Page 5: ...quently Doing so may lead to a re markable drop in performance electric shock malfunc tions smoke and or fire The presence of organic solvents or corrosive gas i e ammonia sulfur compounds and acid may cause gas leakage or water leakage When installing the unit in a hospital take appropriate measures to reduce noise interference High frequency medical equipment may interfere with the normal operat...

Page 6: ...ires or copper wires may result in malfunctions smoke and or fire Do not spray water on the air conditioner or immerse the air conditioner in water Otherwise electric shock and or fire may result When handling units always wear protective gloves to protect your hands from metal parts and high tempera ture parts Periodically check the installation base for damage If the unit is left on a damaged pl...

Page 7: ...of the unit such as pipes and compressor may be either very cold or hot depending on the state of the refrigerant in the unit at the time To reduce the risk of frost bites and burns do not touch these parts with bare hands Do not operate the unit without panels and safety guards Rotating high temperature or high voltage parts on the unit pose a risk of burns and or electric shock Do not turn off t...

Page 8: ...he Outdoor Unit 60 3 Outdoor Unit Circuit Board 61 4 BC Controller Components 66 5 Control Box of the BC Controller 69 6 BC Controller Circuit Board 70 IV Remote Controller 1 Functions and Specifications of MA and ME Remote Controllers 75 2 Group Settings and Interlock Settings via the ME Remote Controller 76 3 Interlock Settings via the MA Remote Controller 80 4 Using the built in Temperature Sen...

Page 9: ...on of Transmission Wave Shape Noise 257 4 Troubleshooting Principal Parts 260 5 Refrigerant Leak 289 6 Compressor Replacement Instructions 291 7 Servicing the BC controller 302 8 Troubleshooting Using the Outdoor Unit LED Error Display 305 X LED Monitor Display on the Outdoor Unit Board 1 How to Read the LED on the Service Monitor 309 ...

Page 10: ...Materials 5 4 Storage of Piping 7 5 Pipe Processing 7 6 Brazing 8 7 Air Tightness Test 9 8 Vacuum Drying Evacuation 10 9 Refrigerant Charging 12 10 Remedies to be taken in case of a Refrigerant Leak 12 11 Characteristics of the Conventional and the New Refrigerants 13 12 Notes on Refrigerating Machine Oil 14 ...

Page 11: ... 2 ...

Page 12: ...of tools page 4 5 Verification of the connecting pipes Verify the type of refrigerant used for the unit to be moved or replaced Use refrigerant pipes made of phosphorus deoxidized copper Keep the inner and outer surfaces of the pipes clean and free of such contaminants as sulfur oxides dust dirt shaving particles oil and water These types of contaminants inside the refrigerant pipes may cause the ...

Page 13: ...he refrigerant type is indicated The cylinder is pink Charging Port on the Refrigerant Cylinder Refrigerant charging The charge port diameter is larger than that of the current port Flare Nut Connection of the unit with the pipes Use Type 2 Flare nuts Tools Materials Use Notes Gas Leak Detector Gas leak detection The ones for use with HFC refrigerant may be used Vacuum Pump Vacuum drying May be us...

Page 14: ...stem that uses R410A use pipes that are made with 1 2H material Drawn unless the pipe diameter is at least ø19 05 3 4 and the radial thickness is at least 1 2t The figures in the radial thickness column are based on the Japanese standards and provided only as a reference Use pipes that meet the local standards O material Annealed Soft copper pipes annealed copper pipes They can easily be bent with...

Page 15: ...of the pipes must be between 1 0 and 1 5 mm For margin adjustment a copper pipe gauge is necessary 6 Flare nut The flare nut type has been changed to increase the strength The size of some of the flare nuts have also been changed The figures in the radial thickness column are based on the Japanese standards and provided only as a reference Use pipes that meet the local standards Flare processing d...

Page 16: ...brazing Keep elbow pipes and T joints in plastic bags The new refrigerator oil is 10 times as hygroscopic as the conventional refrigerating machine oil such as Suniso and if not handled with care could easily introduce moisture into the system Keep moisture out of the pipes for it will cause the oil to deteriorate and cause a compressor failure 5 Pipe Processing Use a small amount of ester oil eth...

Page 17: ...pper pipes or between a copper pipe and copper coupling If installed refrigerant pipes are not immediately connected to the equipment then braze and seal both ends 2 Reasons The new refrigerating machine oil is 10 times as hygroscopic as the conventional oil and is more likely to cause unit failure if water infiltrates into the system Flux generally contains chloride Residual flux in the refrigera...

Page 18: ...ount Refrigerant R410A must be charged in its liquid state vs gaseous state 2 Reasons Oxygen if used for an air tightness test poses a risk of explosion Only use nitrogen to check air tightness Refrigerant R410A must be charged in its liquid state If gaseous refrigerant in the cylinder is drawn out first the composition of the remaining refrigerant in the cylinder will change and become unsuitable...

Page 19: ...rough vacuum drying re moves moisture in the pipes Verify that the vacuum degree has not risen by more than 1Torr 130Pa 1hour after evacuation A rise by less than 1Torr 130Pa is acceptable If the vacuum is lost by more than 1Torr 130Pa conduct evacuation following the instructions in section 6 Special vacuum drying 5 Procedures for stopping vacuum pump To prevent the reverse flow of vacuum pump oi...

Page 20: ... through the check joints at the refrigerant service valve on the high and low pressure sides BV1 and 2 and also through the check joints on the high and low pressure sides CJ1 and 2 To evacuate air only from the outdoor units Apply a vacuum through the check joints on the high and low pressure sides CJ1 and 2 To evacuate air from the indoor units and extension pipes Apply a vacuum through the che...

Page 21: ...ge and be come unsuitable for use 2 Notes When using a cylinder with a siphon refrigerant is charged in the liquid state without the need for turning it upside down Check the type of the cylinder on the label before use 10 Remedies to be taken in case of a Refrigerant Leak If the refrigerant leaks out it may be replenished The entire refrigerant does not need to be replaced Charge refrigerant in t...

Page 22: ...laced 3 Pressure characteristics The pressure in the system using R410A is 1 6 times as great as that in the system using R22 New Refrigerant HFC type Conventional Refriger ant HCFC type R410A R407C R22 R32 R125 R32 R125 R134a R22 Composition wt 50 50 23 25 52 100 Type of Refrigerant Pseudo azeotropic Refrigerant Non azeotropic Refrigerant Single Refrigerant Chloride Not included Not included Incl...

Page 23: ...nants is defined as moisture air processing oil dust dirt wrong types of refrigerant and refrigerating machine oil Cause Symptoms Effects on the refrigerant cycle Water infiltration Frozen expansion valve and capillary tubes Clogged expansion valve and capillary tubes Poor cooling performance Compressor overheat Motor insulation failure Burnt motor Coppering of the orbiting scroll Lock Burn in on ...

Page 24: ...Address Settings 19 4 Sample System Connection 25 5 An Example of a System to which an MA Remote Controller is connected 26 6 An Example of a System to which an ME Remote Controller is connected 38 7 An Example of a System to which both MA Remote Controller and ME Remote Controller are connected 40 8 Restrictions on Pipe Length 43 ...

Page 25: ... 16 ...

Page 26: ...units that are connected to a given outdoor unit exceeds the capacity of the outdoor unit the indoor units will not be able to perform at the rated capacity when they are operated simultaneously Select a combination of units so that the total capacity of the connected indoor units is at or below the capacity of the outdoor unit whenever possible Outdoor units Composing units Maximum total capacity...

Page 27: ... to which both MA Remote Controller and ME Remote Controller are connected before performing wiring work Types and maximum allowable length of cables Control lines are categorized into 2 types transmission line and remote controller line Use the appropriate type of cables and observe the maximum allowable length specified for a given system If a given system has a long transmission line or if a no...

Page 28: ...line 2 The outdoor units in the same refrigerant circuit are automatically designated as OC and OS in the order of capacity from large to small if two or more units have the same capacity in the order of address from small to large 3 Turn off the power to all the outdoor units in the same refrigerant circuit MA remote controller 1 ME remote controller 2 Cable type Type VCTF VCTFK CVV CVS VVR VVF V...

Page 29: ...s to all indoor units 00 ME remote controller Main remote controller RC 101 to 150 Add 100 to the smallest address of all the indoor units in the same group 101 Sub remote controller RC 151 to 200 3 Add 150 to the smallest address of all the indoor units in the same group MA remote controller MA No address settings required The main sub setting must be made if 2 remote controllers are connected to...

Page 30: ...nit of the All Fresh Models is ON 2 When an optional temperature sensor is used set SW1 1 to OFF and set SW3 8 to ON When using an optional temperature sensor install it where room temperature can be detected System configura tion Connection to the system con troller Powersupplyunit for transmission lines Group operation of units in a sys tem with multiple outdoor units Power supply switch connect...

Page 31: ... Setting SW1 4 5 9 10 Power ON OFF by the plug 1 2 3 Indoor unit will go into operation regardless of its operation status before power off power failure In approx 5 minutes OFF ON Automatic restoration after power failure Indoor unit will go into operation if it was in operation when the power was turned off or cut off due to power failure In approx 5 minutes ON OFF Indoor unit will remain stoppe...

Page 32: ...rating current 0 1A Minimum applicable load 1mA at DC Relay circuit 3 CN3N 2 Optional part PAC SC36NA E or field supply Preparations in the field OFF Cooling ON Heating Normal Y OFF ON X Contact rating voltage DC15V Contact rating current 0 1A Minimum applicable load 1mA at DC X Cooling Heating Y Validity Invalidity of X X Y Relay CN3N X Y Relay circuit Adapter 2 Outdoor unit control board Maximum...

Page 33: ...nd control in combination with the low noise mode To enable the low noise mode it is necessary to short circuit 1 2 pin of CN3D on the outdoor unit whose SW4 4 is set to OFF When SW4 4 is set to ON on all outdoor units the following operations cannot be performed Performing 4 step demand in combination with the low noise operation in a single outdoor unit system Performing 8 step demand in combina...

Page 34: ... units 3 Grouping of units in a system with multiple outdoor units NO Manual address setup 4 System with one out door unit With connection to transmission line for centralized control Manual address setup 5 System with one out door unit With connection to indoor outdoor transmission line Manual address setup 6 System with one out door unit With connection to transmission line for centralized contr...

Page 35: ...SNAY units to indoor units in the same system refer to the next section 5 2 An example of a system with one outdoor unit to which 2 or more LOSSNAY units are connected 3 Maximum allowable length 1 Indoor outdoor transmission line Maximum distance 1 25mm2 AWG16 or larger L1 L2 L3 L4 L5 200m 656ft L1 L2 L3 L11 L12 L13 200m 656ft 2 Transmission line for centralized control No connection is required 3...

Page 36: ...en connect terminals 1 and 2 on the terminal block TB15 on the in door unit on one end to the terminal block on the MA re motecontroller Non polarized two wire When performing a group operation of indoor units that have different functions Automatic indoor outdoor ad dresssetup is not available 4 LOSSNAY connection Connect terminals M1 and M2 on the terminal block TB5 on the indoor unit IC to the ...

Page 37: ...ength 1 Indoor outdoor transmission line Same as 5 1 2 Transmission line for centralized control No connection is required 3 MA remote controller wiring Same as 5 1 L3 BC 53 OC 51 TB7 S TB3 TB02 S IC TB5 S TB15 1 2 01 IC TB5 S TB15 1 2 02 A1 B2 MA A1 B2 MA LC TB5 S 05 IC TB5 S 1 2 TB15 IC TB5 S TB15 1 2 04 03 LC TB5 S 06 A1 B2 MA If the BC address overlaps any of the addresses that are assigned to...

Page 38: ...e capacities are the same Proce dures Unit or controller Address setting range Setting method Notes Fac tory set ting 1 Indoor unit Main unit IC 01 to 50 Assign the smallest address to the main unit in the group In a system with a sub BC controller make the settings for the indoor units in the following order i Indoor unit to be connected to the main BC controller ii Indoor unit to be connected to...

Page 39: ...above mentioned system two additional indoor units can be connected 3 Maximum allowable length 1 Indoor outdoor transmission line Maximum distance 1 25mm2 AWG16 or larger L11 L12 200m 656ft L21 L22 200m 656ft 2 Transmission line for centralized control L31 L21 200m 656ft 3 MA remote controller wiring Same as 5 1 4 Maximum line distance via outdoor unit 1 25mm2 AWG16 or larger L12 L31 L22 500m 1640...

Page 40: ...in unit IC 01 to 50 Assign the smallest address to the main unit in the group In a system with a sub BC controller make the settings for the indoor units in the following order i Indoor unit to be connected to the main BC controller ii Indoor unit to be connected to sub BC controller 1 iii Indoor unit to be connected to sub BC controller 2 Make the settings for the indoor units in the way that the...

Page 41: ...s connected to the transmission line for centralized control leave the power jumper connec tor on CN41 as it is factory setting 3 Maximum allowable length 1 Indoor outdoor transmission line Same as 5 3 2 Transmission line for centralized control L31 L32 L21 200m 656ft 3 MA remote controller wiring Same as 5 1 4 Maximum line distance via outdoor unit 1 25mm2 AWG16 or larger L32 L31 L12 L11 500m 164...

Page 42: ...ircuit are automatically designated as OC and OS They are designated as OC and OS in the descending order of capacity ascending order of address if the capacities are the same Proce dures Unit or controller Ad dress setting range Setting method Notes Fac tory set ting 1 Indoor unit Main unit IC 01 to 50 Assign the smallest address to the main unit in the group In a system with a sub BC controller ...

Page 43: ...sters that is required by the system with three BC controllers For each BC con troller that is subtracted from the above mentioned system two ad ditional indoor units can be connected 3 Maximum allowable length 1 Indoor outdoor transmission line Maximum distance 1 25mm2 AWG16 or larger L11 L12 200m 656ft L21 L22 200m 656ft L25 200m 656ft 2 Transmission line for centralized control L31 L21 200m 656...

Page 44: ...od Interlock setting from the remote controller is required if the ON OFF remote controller alone is con nected 5 Switch setting Address setting is required as follows 5 Address setting method The outdoor units in the same refrigerant circuit are automatically designated as OC and OS They are designated as OC and OS in the descending order of capacity ascending order of address if the capacities a...

Page 45: ...nsmission line for centralized control L31 L32 L21 200m 656ft 3 MA remote controller wiring Maximum overall line length 0 3 to 1 25mm2 AWG22 to 16 m1 200m 656ft m2 m3 200m 656ft 4 Maximum line distance via outdoor unit 1 25mm2 AWG16 or larger L32 L31 L12 L11 500m 1640ft L32 L22 L21 500m 1640ft L12 L11 L31 L22 L21 500m 1640ft L11 L21 OC TB3 TB7 S 51 L31 A B S L32 OS1 TB3 TB7 M1M2 S 52 OC TB3 TB7 S ...

Page 46: ...e system controller Refer to the operation manual for the system controller for the setting method Interlock set ting from the remote controller is required if the ON OFF re mote controller alone or the LM adapter alone is connected 5 Switch setting Address setting is required as follows 5 Address setting method The outdoor units in the same refrigerant circuit are automatically designated as OC a...

Page 47: ...ng Maximum overall line length 0 3 to 1 25mm2 AWG22 to 16 m1 10m 32ft m2 m3 10m 32ft If the standard supplied cable must be extended use a cable with a diameter of 1 25mm2 AWG16 The section of the cable that exceeds 10m 32ft must be included in the maximum indoor outdoor transmission line distance described in 1 When connected to the terminal block on the Simple re mote controller use cables that ...

Page 48: ...i iii is true Port number setting is required To perform a group op eration of indoor units that have different func tions set the indoor unit in the group with the greatest number of functions as the main unit 00 Sub unit Assign sequential numbers starting with the address of the main unit in the same group 1 Main unit address 1 main unit address 2 main unit address 3 etc 2 LOSSNAY LC 01 to 50 As...

Page 49: ...s For each BC controller that is subtracted from the above mentioned system two additional indoor units can be connected 10 When a power supply unit is connected to the transmis sion line for centralized control leave the power jumper connector on CN41 as it is factory setting 3 Maximum allowable length 1 Indoor outdoor transmission line Same as 5 3 2 Transmission line for centralized control Same...

Page 50: ...s 5 4 Shielded cable connection Same as 5 4 3 MA remote controller wiring When 2 remote controllers are connected to the sys tem Group operation of indoor units Same as 5 1 4 ME remote controller wiring When 2 remote controllers are connected to the sys tem Group operation of indoor units Same as 6 5 LOSSNAY connection Same as 5 4 6 Switch setting Address setting is required as follows ...

Page 51: ...ess higher than those of the indoor units that are connected to the MA remote controller Make the initial settings for the indoor unit group settings via the system con troller To perform a group operation of indoor units that have different functions des ignate the indoor unit in the group with the greatest number of functions as the main unit Port number setting is required Addresses that are as...

Page 52: ...ion Pipe sections Allowable length of pipes Length Total pipe length A B a b c d Refer to the restrictions on the total piping length in the graph on the next page Total pipe length from the outdoor unit to the farthest indoor unit A B d 165 541 or less Equivalent length 190 623 or less Between outdoor unit and BC control ler A 110 360 or less Between BC controller and indoor unit B d 40 131 or le...

Page 53: ...height difference and the pipe length between BC controller and indoor units Restrictions on pipe length PURY EP200 E P250 E P300YHM A 1000 900 800 700 600 500 400 300 200 10 20 30 40 50 60 70 80 90 100 110 Aggregate length of all pipes m ft Pipe length between outdoor unit and BC controller m ft 32 64 98 131 164 196 229 262 295 328 360 3280 2952 2624 2296 1968 1640 1312 984 656 32 16 32 49 64 98 ...

Page 54: ...e figure titled Restrictions on pipe length below Except the P250 models Height differ ence Between indoor and outdoor units Outdoor unit above in door unit s s e l r o 4 6 1 0 5 H Outdoor unit below in door unit s s e l r o 1 3 1 0 4 H Between indoor unit and BC controller h1 15 49 10 32 or less 2 2 When the capacity of the connected indoor units is P200 or above use the figures in the parenthese...

Page 55: ...wo GB type controllers are connected P350 or below for both combined The maximum total capacity of indoor units that is connectable to the sub BC controller CMB P1016V HB is P350 or below If at least one CMB P1016V HB unit is connected the maximum total capacity of connectable indoor units to a system with two sub controllers is P450 or below 0 10 20 30 40 50 60 70 0 5 10 15 1000 900 800 700 600 5...

Page 56: ... unit H 50 164 or less Outdoor unit below in door unit H 40 131 or less Between indoor unit and BC controller h1 15 49 10 32 or less 2 2 When the capacity of the connected indoor units is P200 or above use the figures in the parentheses as a reference Between indoor units h2 15 49 10 32 or less 2 Between the BC controller main or sub and the sub BC controller s s e l r o 9 4 5 1 3 h s s e l r o 3 ...

Page 57: ... P500 E P550YSHM A 1 PURY E P600 P650YSHM A PURY P700 P750 P800YSHM A 1000 900 800 700 600 500 400 300 200 10 20 30 40 50 60 70 80 90 100 The height difference and the pipe length between BC controller and indoor units Restrictions on pipe length Aggregate length of all pipes m ft Aggregate length of all pipes m ft Aggregate length of all pipes m ft Aggregate length of all pipes m ft Pipe length b...

Page 58: ...5 3 4 ø15 88 5 8 250 ø22 2 7 8 ø19 05 3 4 ø22 2 7 8 ø19 05 3 4 300 350 ø28 58 1 1 8 ø28 58 1 1 8 400 ø22 2 7 8 ø22 2 7 8 450 500 550 ø28 58 1 1 8 ø28 58 1 1 8 600 650 700 ø34 93 1 3 8 ø34 93 1 3 8 750 800 Unit mm inch Indoor unit Refrigerant pipe size Indoor unit connection Flare connection for all models Liquid pipe Gas pipe Liquid pipe Gas pipe P15 P20 P25 P32 P40 ø6 35 1 4 ø12 7 1 2 ø6 35 1 4 ø...

Page 59: ... A ø28 58 1 1 8 Brazed connection Indoor unit side ø9 52 3 8 Flare connection ø15 88 5 8 Flare connection Indoor Indoor Indoor Indoor Indoor Indoor BC controller Maximum of 3 units per port Total capacity of P80 or below All units connected to the same port must be in the same operating mode Branch joint Model name CMY Y102S G2 Optional accessory 2 Junction pipe kit Model name CMY R160 J Optional ...

Page 60: ...rant pipe selection size of the pipes in sections A and B in the figure above Select the proper size pipes based on the total capacity of the downstream indoor units using the table below as a reference Unit mm inch e p i p s a G e p i p d i u q i L s t i n u r o o d n i f o y t i c a p a c l a t o T 8 5 8 8 5 1 ø 8 3 2 5 9 ø w o l e b r o 0 4 1 P P141 P250 ø9 52 3 8 ø19 05 3 4 Liquid pipe side 6 ...

Page 61: ... i p s a G e p i p d i u q i L s t i n u r o o d n i f o y t i c a p a c l a t o T 8 5 8 8 5 1 ø 8 3 2 5 9 ø w o l e b r o 0 4 1 P P141 P250 ø9 52 3 8 ø19 05 3 4 Unit mm inch Operation Pipe sections High pressure side Liquid Low pressure side Gas Outdoor unit side PURY EP200YHM A ø15 88 5 8 Brazed connection ø19 05 3 4 Brazed connection PURY E P250YHM A ø19 05 3 4 Brazed connection ø22 2 7 8 Braze...

Page 62: ... that are connected to both sub BC controllers Select the proper size pipes for the sub controller side based on the total capacity of the indoor units that are connected to the sub controller Unit mm inch Total capacity of indoor units Liquid pipe Gas pipe P140 or below ø9 52 3 8 ø15 88 5 8 P141 P250 ø9 52 3 8 ø19 05 3 4 Unit mm inch Operation Pipe sections High pressure side liquid Low pressure ...

Page 63: ... II Restrictions 54 HWE0713A GB ...

Page 64: ... Components 1 Outdoor Unit Components and Refrigerant Circuit 57 2 Control Box of the Outdoor Unit 60 3 Outdoor Unit Circuit Board 61 4 BC Controller Components 66 5 Control Box of the BC Controller 69 6 BC Controller Circuit Board 70 ...

Page 65: ... 56 ...

Page 66: ... 57 HWE0713A GB III Outdoor Unit Components 1 Outdoor Unit Components and Refrigerant Circuit 1 Front view of a outdoor unit 1 PURY EP200 E P250 E P300 P350 P400YHM A Fan Control Box Fan guard Fin guard Front panel Heat exchanger ...

Page 67: ...check joint CJ1 Low pressure check joint CJ2 Refrigerant service valve on the low pressure side BV1 Solenoid valve SV5c Refrigerant service valve on the high pressure side BV2 Check valve block assembly CV2a Check valve CV4a Check valve CV3a Check valve CV6a Check valve CV10a Check valve CV9a Check valve CV8a Solenoid valve SV5b Solenoid valve block SV4a SV4b SV4d Check valve assembly CV5a Solenoi...

Page 68: ... valve assembly CV5a Check valve assembly CV7a Low pressure sensor 63LS Solenoid valve SV2 Accumulator ACC Solenoid valve SV1a Compressor cover Compressor COMP Oil separator O S Solenoid valve SV9 4 way valve 21S4a Solenoid valve SV5b Solenoid valve SV5c High pressure check joint CJ1 Low pressure check joint CJ2 Check valve CV6a Check valve CV3a Check valve CV10a Check valve CV9a Check valve CV8a ...

Page 69: ...h voltage parts When opening or closing the front panel of the control box do not let it come into contact with any of the internal components Before inspecting the inside of the control box turn off the power keep the unit off for at least 10 minutes and confirm that the voltage between FT P and FT N on INV Board has dropped to DC20V or less It takes about 10 minutes to discharge electricity afte...

Page 70: ...ut 12VDC Output 5VDC GND CNIT Output 12VDC GND Output 5VDC Power supply detection input Power supply ON OFF signal output CNS2 Transmission line input output for centralized control system 30VDC CN41 Power supply for centralized control OFF CN40 Power supply for centralized control ON CN102 Indoor outdoor transmission line input output 30VDC Power supply input for centralized control system 30VDC ...

Page 71: ...ed control system CNIT Input 12VDC GND Input 5VDC Power supply detection output Power supply ON OFF signal input LED1 Power supply for indoor transmission line TP1 2 Check pins for indoor outdoor transmission line TB7 Terminal block for transmission line for centralized control TB3 Indoor outdoor transmission block Ground terminal for transmission line Grounding Grounding CN04 Bus voltage input P ...

Page 72: ...eck terminal P Note Bus voltage check terminal N Note 1 SC P2 Bus voltage Input P SC P1 Rectifier diode output P LED1 Lit Inverter in normal operation Blink Inverter error CN6 Open No load operation setting Short circuited Normal setting CN5V GND Output 5VDC RSH1 Overcurrent detection resistor CN4 GND INV Board Serial communication signal output CN2 Serial communication signal output GND Input 17V...

Page 73: ...on signal output CN5 GND Control board Serial communication signal output CN21 Serial communication signal output GND INV board Input 17VDC CN22 GND INV board Input 5VDC Serial communication signal input GND INV board Output 17VDC THBOX Thermistor Control box internal temperature detection LED1 Inverter in normal operation LED2 Inverter error DIP IPM Rear R630 R631 Overcurrent detection resistor ...

Page 74: ... P N CN5 Output Rectified L2 N current P N TB21 Input output L1 TB22 Input output L2 TB23 Input output L3 TB24 Input N CN1B Input L3 L2 CN1A Input N L1 Grounding F1 F2 F3 F4 Fuse 250VAC 6 3A CN3 Output L1 N Grounding CN2 Surge absorber circuit Surge absorber circuit Short circuit Short circuit ...

Page 75: ...6 HWE0713A GB 4 BC Controller Components 1 CMB P V G GA HA 1 Front 2 Rear view G type Liquid pipe Indoor unit side Gas pipe Indoor unit side TH12 TH15 TH16 TH11 SVM1 LEV1 LEV3 PS1 PS3 Tube in tube heat exchanger Gas Liquid separator ...

Page 76: ...r view GA type 4 Rear view HA type TH12 TH15 TH16 TH11 SVM2 SVM1 LEV1 LEV3 LEV2 PS1 PS3 Tube in tube heat exchanger Gas Liquid separator Gas Liquid separator LEV3 LEV1 LEV2 SVM2 SVM2b SVM1b SVM1 TH16 TH15 TH12 TH11 PS1 PS3 Tube in tube heat exchanger ...

Page 77: ... III Outdoor Unit Components 68 HWE0713A GB 2 CMB P V GB HB 1 Front 2 Rear view Liquid pipe Indoor unit side Gas pipe Indoor unit side TH15 TH12 LEV3 ...

Page 78: ...Outdoor Unit Components 69 HWE0713A GB 5 Control Box of the BC Controller 1 CMB P1016V G GA HA Relay board Transformer Terminal block for transmission line BC controller board Terminal block for power supply ...

Page 79: ... III Outdoor Unit Components 70 HWE0713A GB 6 BC Controller Circuit Board 1 BC controller circuit board BC board SW1 SW2 SW5 SW6 SW4 ...

Page 80: ... III Outdoor Unit Components 71 HWE0713A GB 2 RELAY BOARD RELAY 4 board 3 RELAY BOARD RELAY 10 board ...

Page 81: ... 72 III Outdoor Unit Components GB HWE0713A ...

Page 82: ...s and Specifications of MA and ME Remote Controllers 75 2 Group Settings and Interlock Settings via the ME Remote Controller 76 3 Interlock Settings via the MA Remote Controller 80 4 Using the built in Temperature Sensor on the Remote Controller 81 ...

Page 83: ... 74 ...

Page 84: ...r units using non polar ized 2 core cables Non polarized 2 core cable Remote controller connection Connectable to any indoor unit in the group Connectable anywhere on the indoor out door transmission line Interlock with the ventilation unit Each indoor unit can individually be in terlocked with a ventilation unit Set up via remote controller in the group Each indoor unit can individually be inter ...

Page 85: ...tion of registration Unit type Indoor unit in this case blinks to indicate a registration error Indicates that selected address does not have a corresponding unit 4 To register the addresses for multiple indoor units repeat steps and above 3 4 To search for an address go to section 2 Address Search To next page To search for an address go to section 2 Address Search Bring up the Interlock Setting ...

Page 86: ...NAY and indoor unit that is interlocked with it will be displayed alternately LOSSNAY can be searched in the same manner by bringing up the LOSSNAY address in the Interlocked unit address display window B Interlock setting search After performing step proceed as follows Bring up the address of the indoor unit to be searched on the display Select the address of the indoor unit to be searched by pre...

Page 87: ...temperature range setting on the simultaneous cooling heating type units that supports the automatic operation mode to save on energy consumption enable the Skip Auto Mode setting to make the automatic operation mode unselectable If the automatic operation mode is selected the energy saving function may not work properly When connected to the air conditioning units that do not support the automati...

Page 88: ...atic operation cannot be performed The automatic operation mode is skipped in the function selection mode sequence The left figure shows the display that appears when the current temperature range setting is between 19 C and 30 C in the Cool Dry mode and the lower limit temperature is selected to be set 2 Temperature range setting for heating 4 Switch between the Lower and Upper limit temperature ...

Page 89: ...ked LOSSNAY unit Registration completed The registered indoor unit address and IC and the interlocked LOSSNAY address and LC will appear alternately Registration error If the registration fails the indoor unit address and the LOSSNAY address will be displayed alternately Registration cannot be completed The selected unit address does not have a corresponding indoor unit or a LOSSNAY unit Registrat...

Page 90: ...o search for the address of the LOSSNAY unit that is interlocked with the selected indoor unit Search completed With a LOSSNAY connection The indoor unit address and IC and the interlocked LOSSNAY address and LC will appear alternately Take the following steps to delete the interlock setting between a LOSSNAY unit and the interlocked indoor unit from the remote controller that is connected to the ...

Page 91: ... 82 IV Remote Controller GB HWE0713A ...

Page 92: ... 83 HWE0713A GB V Electrical Wiring Diagram 1 Electrical Wiring Diagram of the Outdoor Unit 85 2 Electrical Wiring Diagram of the BC Controller 86 3 Electrical Wiring Diagram of Transmission Booster 9 ...

Page 93: ... 84 ...

Page 94: ...ing LED2 CPU in operation C5 Z5 C3 C2 F2 R1 R2 3 3 Z24 1 Z25 CNTYP5 green CNTYP4 green 2 4 t t F1 CNTYP2 black R3 Z1 Z2 R34 C30 C32 C34 C36 2 1 3 63LS 63HS1 t 2 1 3 t 3 2 1 CN202 red CN201 2 10 OFF 1 TB1 black F3 N 1 L 2 L 3 L F4 AC250V 6 3A T black white L F1 F2 F3 AC250V 6 3A T DSA R35 CT3 R5 white R33 SC L3 R30 U red white D1 1 R4 R32 red CNIT R6 CN2 3 1 2 C31 CN18V blue W 6 yellow CNS2 5 U TB7...

Page 95: ...20V 22V L 1 2 3 4 10 9 8 4 2 3 10 2 1 4 3 SV3A SV3B SV2B SV3C SV2C SV2A 2 4 3 7 5 6 4 3 2 1 2 3 4 1 2 3 4 2 3 4 9 8 7 6 5 SV1C SV1A SV1B 7 5 3 1 7 5 3 1 7 5 3 1 X2 X1 X30 X4 X3 X31 X6 X5 X32 CN27 Red CN28 Blue 1 1 1 1 2 3 4 13 12 11 16 15 14 13 12 11 SV4B SV4C SV4A 15 16 14 1 2 3 4 1 7 5 3 1 X8 X7 X33 CN29 Green SVM1 1 2 3 1 2 3 1 3 CN36 Green X21 N ZNR01 ZNR02 CNTR Red 2 2 PE 3 1 3 1 T2 T3 T1 T4 ...

Page 96: ... 1 3 1 3 2 2 Indoor outdoor Transmission line PE PE 50Hz 60Hz 220V 240V POWER SUPPLY BREAKER 16A FUSE 16A PULL BOX TO NEXT INDOOR UNIT CN31 Yellow CN30 Black X35 X11 X12 X34 X9 X10 X33 X7 X8 1 3 5 7 1 3 5 7 1 3 5 1 4 3 2 1 4 3 2 1 4 3 2 1 SV6B SV6A SV6C 1 2 3 4 1 2 3 4 3 4 3 2 4 1 2 1 14 16 15 SV4A SV4C SV5B SV4B SV5C SV5A 11 12 13 14 15 16 11 12 13 4 3 2 1 1 1 1 X32 X5 X6 X31 X3 X4 X30 X1 X2 1 3 ...

Page 97: ... X19 X39 X38 X17 X18 X16 X15 X37 X36 X13 X14 CN32 16 16 13 14 15 9 10 11 12 5 6 7 8 4 4 5 6 8 7 9 12 11 10 15 14 13 SV10C SV9C SV8C SV7C SV10A SV9A SV8A SV7A SV10B SV9B SV8B SV7B 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 7 6 5 4 3 2 1 CN52 REL B CN39 CN35 Blue CN34 Black CN33 Red 1 3 1 3 1 3 CN46 Yellow X21 X60 X30 X1 X2 1 3 5 4 3 2 1 SV1B SV1A SV1C 1 2 3 4 3 2 4 1 X35 X11 X1...

Page 98: ... SV15C SV15A SV15B SV14B SV14A SV14C SV13B SV13A SV13C SV12B SV12A SV12C 1 2 3 4 16 15 14 7 6 5 1 4 2 3 13 12 11 10 9 8 1 2 4 3 16 15 14 7 6 5 1 4 2 3 13 12 11 10 9 8 SV11C SV11A SV11B REL B CN43 Red CN44 Yellow CN45 Green X21 CN36 Green 1 1 3 5 7 1 3 5 7 1 3 5 7 X20 X18 X19 X17 X39 X38 X16 X15 X37 X36 X13 X14 3 3 1 3 5 7 CN32 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 4 3 2 1 13 14 1...

Page 99: ...50VAC 6 3A F Yellow Red Yellow DSA ON OFF 1 SW5 OFF 8 SW4 ON 1 8 T2 T3 T1 T4 Indoor outdoor Transmission Line PULL BOX TO NEXT INDOOR UNIT 50Hz 60Hz 220V 240V POWER SUPPLY BREAKER 16A FUSE 16A PE PE TR CN26 3 1 CN12 1 5 3 CONT B CN02 2 1 1 2 3 4 5 6 7 8 4 3 2 1 1 2 3 2 1 CN10 CN11 TH12 TH15 6 5 4 3 2 1 LEV3 220V 240V 20V 22V 1 2 3 4 10 9 8 4 2 3 10 2 1 4 3 SV3A SV3B SV2B SV3C SV2C SV2A 2 4 3 7 5 6...

Page 100: ...CN26 CN38 3 1 5 3 1 7 6 5 4 3 2 1 CN50 TR TH15 TH12 CN11 CN10 CN02 CN03 1 2 3 2 1 1 2 3 4 8 7 6 5 4 3 2 1 1 2 LEV3 1 2 3 4 5 6 CONT B CN52 1 3 CN39 1 2 3 4 5 6 7 220V 240V 20V 22V SV6B SV6A SV6C 1 2 3 4 1 2 3 4 3 3 2 1 2 1 16 15 14 7 6 5 13 12 11 10 9 8 16 15 14 7 6 5 10 9 8 13 12 11 4 4 4 4 3 3 3 3 2 2 2 2 1 1 1 1 SV5C SV5A SV5B SV4B SV4A SV4C SV3B SV3A SV3C SV2B SV2A SV2C 2 3 4 1 2 3 4 2 3 4 2 3...

Page 101: ...4 13 16 16 5 4 4 5 CN35 Blue X20 X19 X39 7 5 3 1 CN34 Black X18 X17 X38 7 5 3 1 CN33 Red X16 X15 X37 7 5 3 1 CN39 CN32 1 3 5 7 X36 X13 X14 CNVCC2 3 2 1 3 Blue 1 Yellow CN40 X41 X40 X42 1 3 5 7 CN41 Green X44 X43 X45 CN42 X47 X46 X48 CN43 Red X50 X49 X51 CN44 Yellow X53 X52 3 5 1 7 5 3 1 7 5 3 1 3 5 7 6 5 4 2 3 2 3 6 5 4 7 12 11 10 9 8 11 12 10 7 9 8 1 1 1 2 3 4 1 2 X54 CN45 Green X56 X55 X57 7 5 3...

Page 102: ...EXT 1 2 3 4 4 3 2 1 1 2 3 4 4 3 2 1 1 2 3 4 4 3 2 1 1 2 3 4 4 3 2 1 4 3 2 1 1 2 3 4 1 2 3 4 4 3 2 1 CNOUT4 CNOUT2 4 1 2 3 4 5 6 7 8 3 2 1 4 3 2 1 1 2 3 4 4 3 2 1 1 2 3 4 4 3 2 1 1 2 3 4 1 2 3 4 4 3 2 1 13 14 15 10 11 12 9 7 8 6 8 7 6 12 11 10 9 15 14 13 16 16 5 4 4 5 CN35 Blue X20 X19 X39 7 5 3 1 CN34 Black X18 X17 X38 7 5 3 1 CN33 Red X1 X15 X37 7 5 3 1 CN39 CN32 1 3 5 7 X36 X13 X14 CNVCC2 3 2 1 ...

Page 103: ...White White Blue Red Red DSA White White Blue Red Red Red Red Varistor Varistor Noise filter Stabilized power supply 4 3 2 1 1 2 3 CN2 CN1 Black Black Black Black Green Yellow 1 2 3 E 4 Choke coil 1 2 CN3 1 2 1 2 CN4 CN2 1 2 CN1 Electronic control board Black White Red Red Black S B A S B A Terminal block 2 for transmission line TB3 Expanded indoor unit side Terminal block 1 for transmission line ...

Page 104: ... 95 HWE0713A GB VI Refrigerant Circuit 1 Refrigerant Circuit Diagram 9 2 Principal Parts and Functions 10 ...

Page 105: ... 96 ...

Page 106: ...P1 CJ1 21S4a ST3 ST1 63LS CV8a CV6a TH7 TH3 SV4a SV4b SV4d SV2 ACC ST6 ST7 ST17 TH5 TH6 CV9a CV10a SV9 CP2 SV5b CV4a CV2a CV7a CV3a CV5a HEX Solenoid valve block 63H1 BV1 BV2 SV5c COMP 63HS1 O S TH4 CJ2 SV1a CP1 CJ1 21S4a ST3 ST1 63LS CV8a CV6a TH7 TH3 SV4a SV4d SV2 ACC ST6 ST7 ST17 TH5 TH6 CV9a CV10a SV9 CP2 SV5b CV4a CV2a CV7a CV3a CV5a HEX Solenoid valve block 63H1 BV1 BV2 SV5c COMP SV4b SV4c ...

Page 107: ...7 TH5 TH6 CV9a CV10a SV9 CP2 SV5b CV4a CV2a CV7a CV3a CV5a HEX 63H1 BV1 BV2 SV5c COMP O S TH4 CJ2 SV1a CP1 21S4a ST3 ST1 63LS CV8a CV6a TH7 TH3 SV4a SV4b SV4d SV2 ACC ST6 ST7 ST17 TH5 TH6 CV9a CV10a SV9 CP2 SV5b CV4a CV2a CV7a CV3a CV5a HEX BV1 BV2 SV5c COMP Low pressure side distrbutor High pressure side junction pipe 63HS1 CJ1 63H1 Solenoid valve block Solenoid valve block ...

Page 108: ...TH5 TH6 CV9a CV10a SV9 CP2 SV5b CV4a CV2a CV7a CV3a CV5a HEX 63H1 63HS1 CJ1 63H1 BV1 BV2 SV5c COMP O S TH4 CJ2 SV1a CP1 21S4a ST3 ST1 63LS CV8a CV6a TH7 TH3 SV4a SV4d SV2 ACC ST6 ST7 ST17 TH5 TH6 CV9a CV10a SV9 CP2 SV5b CV4a CV2a CV7a CV3a CV5a HEX BV1 BV2 SV5c COMP SV4b SV4c Solenoid valve block Solenoid valve block Low pressure side distrbutor High pressure side junction pipe ...

Page 109: ... CV9a CV10a SV9 CP2 SV5b CV4a CV2a CV7a CV3a CV5a HEX 63H1 63HS1 CJ1 63H1 BV1 BV2 SV5c COMP SV4b SV4c O S TH4 CJ2 SV1a CP1 21S4a ST3 ST1 63LS CV8a CV6a TH7 TH3 SV4a SV4d SV2 ACC ST6 ST7 ST17 TH5 TH6 CV9a CV10a SV9 CP2 SV5b CV4a CV2a CV7a CV3a CV5a HEX BV1 BV2 SV5c COMP SV4b SV4c Solenoid valve block Solenoid valve block Low pressure side distrbutor High pressure side junction pipe ...

Page 110: ... VI Refrigerant Circuit 101 HWE0713A GB 2 BC controller 1 CMB P104 P106V G TH15 TH12 LEV3 LEV1 TH16 PS3 PS1 TH11 SVM1 Gas Liquid separator Check valve block Solenoid valve block ...

Page 111: ...A GB 2 CMB P108 P1013 P1016V GA main 3 CMB P104 P108V GB sub TH15 TH12 LEV3 SVM2 LEV1 LEV2 TH16 PS3 PS1 TH11 SVM1 Gas Liquid separator Check valve block Solenoid valve block TH15 TH12 HIC C CP LEV3 Check valve block Solenoid valve block ...

Page 112: ...3 HWE0713A GB 4 CMB P1016V HA main 5 CMB P1016V HB sub TH15 TH12 Gas Liquid separator LEV3 LEV1 TH16 PS1 PS3 TH11 SVA SVB SVC SVM1 SVM2 HIC A HIC B LEV2 SVM1b SVM2b TH15 TH12 HIC C CP LEV3 Check valve block Solenoid valve block ...

Page 113: ...H1 1 Detects high pressure 2 Provides high pressure pro tection 4 15MPa 601psi OFF setting Thermis tor TH4 Discharge 1 Detects discharge air temper ature 2 Provides high pressure pro tection Degrees Celsius Resistance check 0 C 32 F 698kohm 10 C 50 F 413kohm 20 C 68 F 250kohm 30 C 86 F 160kohm 40 C 104 F 104kohm 50 C 122 F 70kohm 60 C 140 F 48kohm 70 C 158 F 34kohm 80 C 176 F 24kohm 90 C 194 F 17 ...

Page 114: ...0 240V Open while being powered closed while not being pow ered Continuity check with a tester SV2 SV4a SV4d Heat exchanger capacity control Controls outdoor unit heat ex changer capacity SV5b Heat exchanger capacity control Prevents high pressure rise Controls defrost cycle AC220 240V Closed while being powered open while not being powered SV5c Allows the refrigerant to pass through the bypass pi...

Page 115: ... Continuity between yellow brown and blue Thermis tor TH1 Suction air temperature Indoor unit control Thermo 0 C 32 F 15kohm 10 C 50 F 9 7kohm 20 C 68 F 6 4kohm 25 C 77 F 5 3kohm 30 C 86 F 4 3kohm 40 C 104 F 3 1kohm Resistance check TH2 Pipe temper ature 1 Indoor unit control Frost prevention Hot adjust 2 LEV control during heat ing operation subcool detection TH3 Gas pipe temperature LEV control ...

Page 116: ... re frigerant tempera ture LEV control Subcool Solenoid valve SVM1 Opens during cooling and de frost modes AC220 240V Open while being powered closed while not being pow ered Continuity check with a tester SV A Provides refrigerant to indoor unit in cooling operation SV B Provides refrigerant to indoor unit in heating operation SV C Provides refrigerant to indoor unit in cooling operation LEV LEV1...

Page 117: ...rol Subcool Solenoid valve SVM1 Opens during cooling and de frost modes AC220 240V Open while being powered closed while not being pow ered Continuity check with a tester SVM2 Pressure differential control SV A Provides refrigerant to indoor unit in cooling operation SV B Provides refrigerant to indoor unit in heating operation SV C Provides refrigerant to indoor unit in cooling operation LEV LEV1...

Page 118: ...et tempera ture LEV control Superheat Solenoid valve SV A Provides refrigerant to indoor unit in cooling operation AC220 240V Open while being powered closed while not being pow ered Continuity check with a tester SV B Provides refrigerant to indoor unit in heating operation SV C Provides refrigerant to indoor unit in cooling operation LEV LEV3 Pressure differential control DC12V Opening of a valv...

Page 119: ...ing cooling and de frost modes AC220 240V Open while being powered closed while not being pow ered Continuity check with a tester SVM1b Opens during cooling and de frost modes SVM2 Pressure differential control SVM2b Pressure differential control SV A Provides refrigerant to indoor unit in cooling operation SV B Provides refrigerant to indoor unit in heating operation SV C Provides refrigerant to ...

Page 120: ...et tempera ture LEV control Superheat Solenoid valve SV A Provides refrigerant to indoor unit in cooling operation AC220 240V Open while being powered closed while not being pow ered Continuity check with a tester SV B Provides refrigerant to indoor unit in heating operation SV C Provides refrigerant to indoor unit in cooling operation LEV LEV3 Pressure differential control DC12V Opening of a valv...

Page 121: ... 112 VI Refrigerant Circuit GB HWE0713A ...

Page 122: ... 113 HWE0713A GB VII Control 1 Functions and Factory Settings of the Dipswitches 11 2 Controlling the Outdoor Unit 121 3 Controlling BC Controller 134 4 Operation Flow Chart 135 ...

Page 123: ... 114 ...

Page 124: ...h Before power on C C SW1 1 10 For self diagnosis operation monitoring Refer to the LED monitor display on the outdoor unit board Anytime after power on C C SW2 1 Centralized control switch Without connection to the centralized controller With connection to the centralized con troller Before power on B B 2 Deletion of connec tion information Normal control Deletion Before power on A 3 Deletion of ...

Page 125: ...A 3 Defrost start temper ature P250 P300 EP200 10 C 14 F 5 C 23 F Anytime after power on B B P350 P400 EP250 EP300 8 C 18 F 4 Defrost end temper ature P250 P300 EP200 10 C 50 F P250 P300 EP200 15 C 59 F Anytime after power on except during defrost op eration B B P350 P400 EP250 EP300 7 C 45 F P350 P400 EP250 EP300 12 C 54 F 5 6 7 8 9 Model setting Outdoor standard static pressure Outdoor high stat...

Page 126: ...nnector Leave the short circuit connector on the mating connector during normal operation to enable error detection and protect the equipment from damage Switch Function Function according to switch setting Switch setting timing Units that re quire switch setting Note 2 OFF ON OFF ON OC OS SW5 1 Model selection See the table below Note 4 Before being energized C C 2 3 4 5 Low noise mode selection ...

Page 127: ... in sensor on the remote controller Available During heating operation According to the SW1 7 setting Heat pump Always on while in the heating mode Fan speed setting for Heating Thermo OFF Very Low Low Preset speed Cooling only Enabled Enabled Disabled Disabled Enabled Enabled Not available Available Not available Available Not available Not available Available Not available Available Not availabl...

Page 128: ...he MA remote controller PAR 21MAA does not have the switches listed above Refer to the installation manual for the func tion setting Remote controller Switching switch 1 ON 2 3 4 Switch 2 1 Function Remote controller main sub setting At power on of the remote controller Normal startup Timer mode startup 3 Cooling heating display set by automatic setting Displayed Not displayed 4 Suction temperatur...

Page 129: ...t automatically being set to 1 2 00 200 1 At factory shipment the rotary switch is set to 01 2 The address range that can be set with the ME remote controller is between 101 and 200 When the dials are set to a number between 01 and 99 the 100 s digit is automatically set to 1 When the dials are set to 00 the 100 s digit is automatically set to 2 Switch Function Function according to switch setting...

Page 130: ...ial startup Performing startup sequence rotation does not change the basic operation of OC and OS Only startup sequence is changed Startup sequence of the outdoor units can be checked with the self diagnosis switch SW1 on the OC 3 Initial Control When the power is turned on the initial processing of the microcomputer is given top priority During the initial processing control processing of the ope...

Page 131: ... low pressure 63LS drops below 0 23MPa 33psi When low pressure 63LS ex ceeds 0 38MPa 55psi When high pressure 63HS1 rises When 63HS1 exceeds 3 62MPa 525psi When 63HS1 is or below 3 43MPa 497psi and 30 seconds have passed Operation SV9 ON OFF When high pressure 63HS1 rises during the heating operation When 63HS1 exceeds 3 50MPa 507psi When SV5b is ON and the pressure is 2 70MPa 391psi or below Othe...

Page 132: ... of the compressor in operation is monitored and when it exceeds the upper limit the frequency is decreased every minute Operating temperature is 115 C 239 F 3 Periodic frequency control Frequency control other than the ones performed at start up upon status change and for protection is called periodic frequen cy control convergent control and is performed in the following manner Periodic control ...

Page 133: ...outdoor units that are in operation go into the defrost mode simultaneously The unit s that is stopped at the time defrost operation starts remains stopped 2 Defrost operation Model TH6 SW3 3 OFF SW3 3 ON P250 model 10 C 14 F 5 C 23 F P300 model 10 C 14 F 5 C 23 F P350 model 8 C 18 F 5 C 23 F P400 model 8 C 18 F 5 C 23 F EP200 model 10 C 14 F 5 C 23 F EP250 model 8 C 18 F 5 C 23 F EP300 model 8 C ...

Page 134: ...ly or Heating main mode The refrigerant recovery mode starts when all of the following conditions are met 1 When 5 minutes have passed in the Heating only or Heating main mode or 30 seconds have passed in the Cooling only or Cooling main mode since the completion of the previous refrigerant recovery cycle AND the when following conditions are met TH4 105 C 221 F 2 When the port is not in the 4 min...

Page 135: ... ON 2 OFF OFF OFF ON 3 OFF ON OFF ON 4 ON OFF OFF ON 5 ON ON OFF OFF Heating only 1 ON ON OFF OFF Heating main 1 ON ON ON OFF 2 ON ON OFF OFF Defrost 1 ON ON OFF OFF P350 P400 and EP250 EP300 models Cooling only Cooling main 1 OFF OFF OFF ON ON 2 OFF OFF OFF OFF ON 3 OFF OFF ON OFF ON 4 OFF ON ON OFF ON 5 ON ON ON OFF OFF Heating only 1 ON ON ON OFF OFF Heating main 1 ON ON ON ON OFF 2 ON ON ON OF...

Page 136: ... integrated operation time of 35 minutes Completed in the integrated operation time of 90 minutes The compressor on the OC remains in operation and the compressor on the OS starts up 50 F 60Hz OC or F 50Hz OC Completed in the integrated operation time of 35 minutes Completed in the integrated operation time of 90 minutes The compressor on the OC starts up Both the OC and OS stop The startup sequen...

Page 137: ...ng mode has reached four hours When the integrated operation time of compressor in heating mode has reached two hours When an error is detected that does not permit the unit to perform an emergency operation 2 Control at or after the completion of emergency operation At or after the completion of emergency operation the compressor stops and the error code reappears on the remote con troller If ano...

Page 138: ...000A After the completion of an emergency operation the correct connection information will be restored 2 Starting the emergency operation When the OS is in trouble 1 A communication error occurs An emergency operation starts in approximately six minutes Error codes that permit an emergency operation Applicable to both OC and OS Emergency operation pattern 2 outdoor units 1 If an attempt is made t...

Page 139: ...essing Autonomous distributed control system F2 VPM control Rotation speed control of compressor or fan depending on the refrigerant pressure value and the changing speed Self contained capacity control depending on the load Refrigerant distribution control depending on the operation mode Outdoor unit Daisy chained non polar 2 wire transmission line Indoor unit BC controller Autonomous distributed...

Page 140: ...ng Heating Heating Heating Low pressure pipe High pressure pipe High pressure gas High pressure gas High pressure gas High pressure two phase Low pressure gas Low pressure gas Low pressure gas Low pressure gas Low pressure gas Gas liquid separator Outdoor unit BC controller Indoor unit LEV LEV M M L M L M L M L A O M L M L M L M L A O B C D I J J E F F N N N K M L M L M L G H A O L J G I K H D C F...

Page 141: ...g mode 3 Dry mode 4 Automatic cooling heating mode 5 Fan mode 6 Stopping mode 1 Cooling only mode All indoor units in operation are in cooling mode 2 Heating only mode All indoor units in operation are in heating mode 3 Cooling main mode Coexistence of units in cooling and heating modes 4 Heating main mode Coexistence of units in cooling and heating modes 5 Stopping mode All indoor units are in fa...

Page 142: ...nput to the indoor units When DIP SW4 4 is set to ON the 4 step DEMAND control is enabled Eight step demand control is possible in the system with two outdoor units Refer to Chapter II 3 2 7 Various types of control using input output signal connector on the outdoor unit various connec tion options for details page 22 ...

Page 143: ...ntrol 2 1 Liquid level control The liquid level detected by the liquid inlet temperature TH11 sensor is controlled so as to be within a certain range 2 Pressure differential control The detected differential pressure PS1 and P3 is controlle every minute so as to be within a certain range 110 110 3 3 Can be 110 or more due to pressure rise on the liquid side PS1 2000 1200 LEV2 only GA HA type LEV3 ...

Page 144: ...te 3 Note 3 Note 3 1 Protection function self holding cancelled 2 Indoor unit LEV fully closed 1 Auxiliary heater OFF 2 Low fan speed for 1 minute YES YES YES YES YES YES YES YES Normal operation Error Stop 1 Prohibition Auto COOL HEAT display Automatic cooling heating mode Note 3 YES Auto cooling heating mode 1 1 Note 1 Indoor unit LEV fully closed Opening 41 Note 2 The system may go into the err...

Page 145: ...n search for the indoor unit address for the remote controller address and for the group information will start During this HO PLEASE WAIT blinks on the display of the remote controller When the indoor unit to be controlled by the remote controller is missing HO PLEASE WAIT keeps blinking on the display of the remote controller even after 3 or more minutes after power on Note 3 The units will foll...

Page 146: ... Transmitted to the outdoor unit 3 3 Operation mode Note 1 The system may go into the error mode on either the indoor unit side or the BC controller or outdoor unit side If some of the indoor units are experiencing a problem only those indoor units that are experiencing the problem will stop If the BC controller or the outdoor unit is experiencing a problem all the connected units will stop Operat...

Page 147: ...trol 4 Outdoor unit fan control 5 BC controller solenoid valve control 6 BC controller control Normal operation During test run mode Indoor unit fan operation 1 Inverter output 0Hz 2 Indoor unit LEV Oil return LEV fully closed 3 Solenoid valves OFF 4 Outdoor unit fan stop 5 BC controller solenoid valves OFF 6 BC controller LEV fully closed Unit in the stopped state 2 3 Note 1 The indoor fan operat...

Page 148: ...on 3 minute restart prevention Note 1 2 Note 1 2 YES YES YES YES NO NO NO NO NO 1 Indoor outdoor unit fan control 2 Inverter frequency control 3 Indoor unit LEV fully open 4 Solenoid valve control 5 BC controller solenoid valve control 6 BC controller LEV control Normal operation Defrost operation 4 way valve ON During test run mode 1 Indoor unit fan operation at Very Low speed 2 Inverter output 0...

Page 149: ... LEV fully closed 2 3 Note 1 When the indoor unit inlet temperature exceeds 18 C 64 F the outdoor unit compressor and the indoor unit fan start the intermittent operation simultaneously When the indoor unit inlet temperature becomes 18 C 64 F or less the fan always runs at low speed The outdoor unit the indoor unit and the solenoid valve operate in the same way as they do in the cooling operation ...

Page 150: ... before a Test Run 143 2 Test Run Method 144 3 Operating Characteristic and Refrigerant Amount 145 4 Adjusting the Refrigerant Amount 145 5 Refrigerant Amount Adjust Mode 148 6 The following symptoms are normal 150 7 Standard Operation Data Reference Data 151 ...

Page 151: ... 142 ...

Page 152: ...pressor will evaporate and the insulation resistance will go up Do not measure the insulation resistance of the terminal block for transmission line for the unit remote controller 3 Check that the valve on the gas pipe and liquid pipe are fully open Securely tighten the cap 4 Check the phase sequence and the voltage of the power supply 5 When a transmission booster is connected Turn on the transmi...

Page 153: ...n Mode button Press the Fan Speed button Change the air flow direction by pressing the Vertical Air Direction button or the Louver button Confirm the operation of outdoor unit fan Confirm the operation of all interlocked equipment such as ventilation equipment Note 1 Refer to the following pages if an error code appears on the remote controller or when the unit malfunctions 2 The OFF timer will au...

Page 154: ...t Amount 1 Symptoms Overcharging or undercharging of refrigerant can cause the following symptoms Before attempting to adjust the amount of refrigerant in the system thoroughly check the operating conditions of the system Then adjust the refrigerant amount by running the unit in the refrigerant amount adjust mode 2 Amount of refrigerant 1 To be checked during operation Operate all indoor units in ...

Page 155: ...ength of ø28 58 1 1 8 high pressure pipe m L2 Length of ø22 2 7 8 high pressure pipe m L3 Length of ø19 05 3 4 high pressure pipe m L4 Length of ø15 88 5 8 high pressure pipe m L5 Length of ø15 88 5 8 liquid pipe m L6 Length of ø12 7 1 2 liquid pipe m L7 Length of ø9 52 3 8 liquid pipe m L8 Length of ø6 35 1 4 liquid pipe m 1 2 3 4 1 2 3 4 Refer to the table below L1 Length of ø28 58 1 1 8 high pr...

Page 156: ...or Indoor 2 6 5 3 4 1 P100 P250 Indoor unit1 80 model Indoor unit2 250 model Indoor unit3 32 model Indoor unit4 40 model Indoor unit5 32 model Indoor unit6 63 model A 28 58 B 9 52 C 9 52 D 9 52 E 9 52 F 22 2 G 19 05 40m 10m 20m 5m 5m 3m 1m 1 1 8 3 8 3 8 3 8 3 8 7 8 3 4 3 8 3 8 1 4 1 4 1 4 3 8 131ft 32ft 65ft 16ft 16ft 9ft 3ft 32ft 16ft 16ft 32ft 16ft 16ft a 9 52 b 9 52 c 6 35 d 6 35 e 6 35 f 9 52 ...

Page 157: ...equate for a short while after starting the unit in the refrigerant amount adjust mode but turn out to be inadequate later on when the refrigerant system stabilizes When the amount of refrigerant is truly adequate TH3 TH6 on the indoor unit is 5 C 9 F or above and SH on the indoor unit is between 5 and 15 C 9 and 27 F The refrigerant amount may seem adequate at the moment but may turn out to be in...

Page 158: ...pressure side Keep the unit running for 5 minutes after adjusting the refrigerant amount to determine its adequacy Keep the unit running for 5 minutes after adjusting the refrigerant amount to determine its adequacy Turn off SW4 3 on the OC Turn on SW4 3 on the OC Adjustment complete Note 4 Has the initial start up mode been completed Gradually add refrigerant from the service port on the low pres...

Page 159: ...n it operates at low speed for 2 minutes and finally it operates at the set speed Pre heating stand by When the main power is turned on the display shown on the right appears on the in door unit remote controller for 5 minutes HO or PLEASE WAIT icons blink on the display The system is starting up Wait until the blinking display of HO or PLEASE WAIT go off The drain pump keeps run ning after the un...

Page 160: ... Total pipe length 25 82 Fan speed Hi Amount of refrigerant kg lbs oz 18 5 41 Outdoor unit Electric current A 12 8 Voltage V 400 Compressor frequency Hz 65 LEV open ing Indoor unit Pulse 387 387 BC controller 1 2 3 2000 170 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 96 0 78 429 113 BC controller on the liquid side PS1 Intermediate part PS3 2 81 2 81 408 408 Temp of each sec tion Outd...

Page 161: ...efrigerant kg lbs oz 19 1 43 22 4 50 Outdoor unit Electric current A 14 8 19 9 Voltage V 400 400 Compressor frequency Hz 74 95 LEV open ing Indoor unit Pulse 325 325 325 325 387 387 BC controller 1 2 3 2000 180 2000 190 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 3 12 0 86 453 125 3 03 0 79 439 115 BC controller on the liquid side PS1 Intermediate part PS3 2 93 2 93 425 425 2 72 2 72 39...

Page 162: ... Amount of refrigerant kg lbs oz 24 4 54 Outdoor unit Electric current A 22 0 Voltage V 400 Compressor frequency Hz 97 LEV open ing Indoor unit Pulse 325 325 325 325 BC controller 1 2 3 2000 2000 200 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 3 16 0 89 458 129 BC controller on the liquid side PS1 Intermediate part PS3 2 75 2 75 399 399 Temp of each sec tion Outdoor unit Discharge TH4 C...

Page 163: ...ed Hi Amount of refrigerant kg lbs oz 18 5 41 Outdoor unit Electric current A 12 1 Voltage V 400 Compressor frequency Hz 71 LEV open ing Indoor unit Pulse 406 406 BC controller 1 2 3 110 590 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 90 0 64 421 93 BC controller on the liquid side PS1 Intermediate part PS3 2 87 2 55 416 370 Temp of each sec tion Outdoor unit Discharge TH4 C F 80 176 ...

Page 164: ...t of refrigerant kg lbs oz 19 1 43 22 4 50 Outdoor unit Electric current A 15 3 19 9 Voltage V 400 400 Compressor frequency Hz 81 101 LEV open ing Indoor unit Pulse 332 332 332 332 406 406 BC controller 1 2 3 110 660 110 730 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 68 0 58 389 84 2 88 0 60 418 87 BC controller on the liquid side PS1 Intermediate part PS3 2 64 2 32 383 336 2 84 2 52...

Page 165: ... Amount of refrigerant kg lbs oz 24 4 54 Outdoor unit Electric current A 21 9 Voltage V 400 Compressor frequency Hz 102 LEV open ing Indoor unit Pulse 332 332 332 332 BC controller 1 2 3 110 110 800 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 68 0 56 389 81 BC controller on the liquid side PS1 Intermediate part PS3 2 64 2 32 383 336 Temp of each sec tion Outdoor unit Discharge TH4 C F...

Page 166: ...rigerant kg lbs oz 35 6 79 Outdoor unit Electric current A 26 8 Voltage V 400 Compressor frequency Hz 65 65 LEV open ing Indoor unit Pulse 387 387 387 387 BC controller 1 2 3 2000 2000 220 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 96 0 78 429 113 2 96 0 78 429 113 BC controller on the liquid side PS1 Intermediate part PS3 2 81 2 81 408 408 Temp of each sec tion Outdoor unit Discharg...

Page 167: ...rigerant kg lbs oz 37 2 83 Outdoor unit Electric current A 29 9 Voltage V 400 Compressor frequency Hz 74 65 LEV open ing Indoor unit Pulse 222 325 325 325 387 387 BC controller 1 2 3 2000 2000 230 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 3 12 0 82 453 119 2 96 0 82 429 119 BC controller on the liquid side PS1 Intermediate part PS3 2 87 2 87 416 416 Temp of each sec tion Outdoor unit ...

Page 168: ...rigerant kg lbs oz 37 2 83 Outdoor unit Electric current A 31 4 Voltage V 400 Compressor frequency Hz 74 74 LEV open ing Indoor unit Pulse 362 325 325 325 387 387 BC controller 1 2 3 2000 2000 240 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 3 12 0 86 453 125 3 12 0 86 453 125 BC controller on the liquid side PS1 Intermediate part PS3 2 93 2 93 425 425 Temp of each sec tion Outdoor unit ...

Page 169: ...rigerant kg lbs oz 41 0 90 Outdoor unit Electric current A 36 5 Voltage V 400 Compressor frequency Hz 95 74 LEV open ing Indoor unit Pulse 325 325 325 325 387 387 BC controller 1 2 3 2000 2000 250 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 3 03 0 82 439 119 3 12 0 82 453 119 BC controller on the liquid side PS1 Intermediate part PS3 2 82 2 82 409 409 Temp of each sec tion Outdoor unit ...

Page 170: ...frigerant kg lbs oz 43 2 95 Outdoor unit Electric current A 39 6 Voltage V 400 Compressor frequency Hz 97 74 LEV open ing Indoor unit Pulse 325 325 387 387 387 387 BC controller 1 2 3 2000 2000 260 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 3 16 0 87 458 126 3 12 0 87 453 126 BC controller on the liquid side PS1 Intermediate part PS3 2 84 2 84 412 412 Temp of each sec tion Outdoor unit...

Page 171: ...frigerant kg lbs oz 48 0 106 Outdoor unit Electric current A 44 6 Voltage V 400 Compressor frequency Hz 97 95 LEV open ing Indoor unit Pulse 387 387 387 387 387 387 BC controller 1 2 3 2000 2000 270 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 3 16 0 84 458 122 3 03 0 84 439 122 BC controller on the liquid side PS1 Intermediate part PS3 2 73 2 73 396 396 Temp of each sec tion Outdoor uni...

Page 172: ...frigerant kg lbs oz 48 0 106 Outdoor unit Electric current A 47 7 Voltage V 400 Compressor frequency Hz 97 97 LEV open ing Indoor unit Pulse 387 387 387 310 310 310 BC controller 1 2 3 2000 2000 280 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 3 16 0 89 458 129 3 16 0 89 458 129 BC controller on the liquid side PS1 Intermediate part PS3 2 75 2 75 399 399 Temp of each sec tion Outdoor uni...

Page 173: ...f refrigerant kg lbs oz 35 6 79 Outdoor unit Electric current A 26 9 Voltage V 400 Compressor frequency Hz 71 71 LEV open ing Indoor unit Pulse 406 406 406 406 BC controller 1 2 3 110 110 980 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 90 0 64 421 93 2 90 0 64 421 93 BC controller on the liquid side PS1 Intermediate part PS3 2 87 2 55 416 370 Temp of each sec tion Outdoor unit Dischar...

Page 174: ... refrigerant kg lbs oz 37 2 83 Outdoor unit Electric current A 30 1 Voltage V 400 Compressor frequency Hz 81 71 LEV open ing Indoor unit Pulse 229 332 332 332 406 406 BC controller 1 2 3 110 110 1050 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 79 0 64 405 93 2 79 0 58 405 81 BC controller on the liquid side PS1 Intermediate part PS3 2 75 2 43 399 352 Temp of each sec tion Outdoor unit...

Page 175: ... refrigerant kg lbs oz 37 2 83 Outdoor unit Electric current A 33 4 Voltage V 400 Compressor frequency Hz 81 81 LEV open ing Indoor unit Pulse 373 332 332 332 406 406 BC controller 1 2 3 110 110 1120 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 68 0 58 389 84 2 68 0 58 389 84 BC controller on the liquid side PS1 Intermediate part PS3 2 64 2 32 383 336 Temp of each sec tion Outdoor unit...

Page 176: ... refrigerant kg lbs oz 41 0 91 Outdoor unit Electric current A 36 1 Voltage V 400 Compressor frequency Hz 101 81 LEV open ing Indoor unit Pulse 350 350 340 340 330 330 BC controller 1 2 3 110 110 1190 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 78 0 60 403 87 2 78 0 58 403 84 BC controller on the liquid side PS1 Intermediate part PS3 2 74 2 42 397 351 Temp of each sec tion Outdoor uni...

Page 177: ... refrigerant kg lbs oz 43 2 95 Outdoor unit Electric current A 38 9 Voltage V 400 Compressor frequency Hz 102 81 LEV open ing Indoor unit Pulse 332 332 406 406 406 406 BC controller 1 2 3 110 110 1260 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 68 0 56 389 81 2 68 0 58 389 84 BC controller on the liquid side PS1 Intermediate part PS3 2 64 2 32 383 336 Temp of each sec tion Outdoor uni...

Page 178: ...refrigerant kg lbs oz 48 0 106 Outdoor unit Electric current A 42 2 Voltage V 400 Compressor frequency Hz 102 101 LEV open ing Indoor unit Pulse 332 332 406 406 406 406 BC controller 1 2 3 110 110 1330 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 78 0 60 403 87 2 78 0 56 403 81 BC controller on the liquid side PS1 Intermediate part PS3 2 74 2 42 397 351 Temp of each sec tion Outdoor un...

Page 179: ...refrigerant kg lbs oz 48 0 106 Outdoor unit Electric current A 43 3 Voltage V 400 Compressor frequency Hz 102 102 LEV open ing Indoor unit Pulse 406 406 406 414 414 414 BC controller 1 2 3 110 110 1400 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 68 0 56 389 81 2 68 0 56 389 81 BC controller on the liquid side PS1 Intermediate part PS3 2 64 2 32 383 336 Temp of each sec tion Outdoor un...

Page 180: ...Fan speed Hi Hi Amount of refrigerant kg lbs oz 17 3 39 19 8 43 Outdoor unit Electric current A 8 3 11 0 Voltage V 400 400 Compressor frequency Hz 52 65 LEV open ing Indoor unit Pulse 325 325 387 387 BC controller 1 2 3 2000 160 2000 170 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 66 0 80 385 116 2 60 0 78 377 113 BC controller on the liquid side PS1 Intermediate part PS3 2 51 2 51 36...

Page 181: ...i Amount of refrigerant kg lbs oz 20 4 45 Outdoor unit Electric current A 13 3 Voltage V 400 Compressor frequency Hz 74 LEV open ing Indoor unit Pulse 325 325 325 BC controller 1 2 3 2000 180 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 78 0 86 403 125 BC controller on the liquid side PS1 Intermediate part PS3 2 59 2 59 375 375 Temp of each sec tion Outdoor unit Discharge TH4 C F 80 17...

Page 182: ...Hi Amount of refrigerant kg lbs oz 17 3 39 19 8 43 Outdoor unit Electric current A 9 3 12 1 Voltage V 400 400 Compressor frequency Hz 50 69 LEV open ing Indoor unit Pulse 332 332 406 406 BC controller 1 2 3 110 520 110 590 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 64 0 69 383 100 2 90 0 67 421 97 BC controller on the liquid side PS1 Intermediate part PS3 2 61 2 29 379 332 2 87 2 55 ...

Page 183: ...d Hi Amount of refrigerant kg lbs oz 20 4 45 Outdoor unit Electric current A 15 0 Voltage V 400 Compressor frequency Hz 79 LEV open ing Indoor unit Pulse 332 332 332 BC controller 1 2 3 110 660 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 68 0 60 389 87 BC controller on the liquid side PS1 Intermediate part PS3 2 64 2 32 383 336 Temp of each sec tion Outdoor unit Discharge TH4 C F 81 1...

Page 184: ... 5 8 Fan speed Hi Amount of refrigerant kg lbs oz 33 6 76 Outdoor unit Electric current A 16 9 Voltage V 400 Compressor frequency Hz 52 52 LEV open ing Indoor unit Pulse 325 325 325 325 BC controller 1 2 3 2000 2000 200 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 66 0 80 385 116 2 66 0 80 385 116 BC controller on the liquid side PS1 Intermediate part PS3 2 51 2 51 363 363 Temp of each...

Page 185: ... refrigerant kg lbs oz 35 4 78 Outdoor unit Electric current A 19 3 Voltage V 400 Compressor frequency Hz 65 52 LEV open ing Indoor unit Pulse 325 325 387 387 BC controller 1 2 3 2000 2000 210 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 60 0 79 377 115 2 66 0 79 385 115 BC controller on the liquid side PS1 Intermediate part PS3 2 48 2 48 359 359 Temp of each sec tion Outdoor unit Disc...

Page 186: ... refrigerant kg lbs oz 39 4 91 Outdoor unit Electric current A 21 9 Voltage V 400 Compressor frequency Hz 74 52 LEV open ing Indoor unit Pulse 387 387 387 387 BC controller 1 2 3 2000 2000 220 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 78 0 78 403 113 2 66 0 78 385 113 BC controller on the liquid side PS1 Intermediate part PS3 2 55 2 55 369 369 Temp of each sec tion Outdoor unit Disc...

Page 187: ... refrigerant kg lbs oz 39 8 87 Outdoor unit Electric current A 24 8 Voltage V 400 Compressor frequency Hz 74 65 LEV open ing Indoor unit Pulse 222 325 325 325 387 387 BC controller 1 2 3 2000 2000 230 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 78 0 82 403 119 2 60 0 82 377 119 BC controller on the liquid side PS1 Intermediate part PS3 2 59 2 59 375 375 Temp of each sec tion Outdoor u...

Page 188: ...refrigerant kg lbs oz 39 8 87 Outdoor unit Electric current A 27 2 Voltage V 400 Compressor frequency Hz 74 74 LEV open ing Indoor unit Pulse 362 325 325 325 387 387 BC controller 1 2 3 2000 2000 240 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 78 0 86 403 125 2 78 0 86 403 125 BC controller on the liquid side PS1 Intermediate part PS3 2 59 2 59 375 375 Temp of each sec tion Outdoor un...

Page 189: ...d Hi Amount of refrigerant kg lbs oz 33 6 76 Outdoor unit Electric current A 18 8 Voltage V 400 Compressor frequency Hz 50 50 LEV open ing Indoor unit Pulse 332 332 332 332 BC controller 1 2 3 110 110 800 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 68 0 69 389 100 2 68 0 69 389 100 BC controller on the liquid side PS1 Intermediate part PS3 2 64 2 32 383 336 Temp of each sec tion Outdo...

Page 190: ...of refrigerant kg lbs oz 35 4 78 Outdoor unit Electric current A 21 2 Voltage V 400 Compressor frequency Hz 69 50 LEV open ing Indoor unit Pulse 332 332 406 406 BC controller 1 2 3 110 110 870 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 77 0 67 402 97 2 77 0 69 402 100 BC controller on the liquid side PS1 Intermediate part PS3 2 74 2 42 397 351 Temp of each sec tion Outdoor unit Disch...

Page 191: ...of refrigerant kg lbs oz 39 4 91 Outdoor unit Electric current A 24 5 Voltage V 400 Compressor frequency Hz 79 50 LEV open ing Indoor unit Pulse 406 406 406 406 BC controller 1 2 3 110 110 980 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 90 0 60 421 87 2 90 0 69 421 100 BC controller on the liquid side PS1 Intermediate part PS3 2 87 2 55 416 370 Temp of each sec tion Outdoor unit Disch...

Page 192: ...of refrigerant kg lbs oz 39 8 87 Outdoor unit Electric current A 27 1 Voltage V 400 Compressor frequency Hz 79 69 LEV open ing Indoor unit Pulse 229 332 332 332 406 406 BC controller 1 2 3 110 110 1050 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 79 0 60 405 87 2 79 0 67 405 97 BC controller on the liquid side PS1 Intermediate part PS3 2 75 2 43 399 352 Temp of each sec tion Outdoor un...

Page 193: ...f refrigerant kg lbs oz 39 8 87 Outdoor unit Electric current A 30 6 Voltage V 400 Compressor frequency Hz 79 79 LEV open ing Indoor unit Pulse 373 332 332 332 406 406 BC controller 1 2 3 110 110 1120 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 68 0 60 389 87 2 68 0 60 389 87 BC controller on the liquid side PS1 Intermediate part PS3 2 64 2 32 383 336 Temp of each sec tion Outdoor uni...

Page 194: ...play on the Remote Controller 190 3 Investigation of Transmission Wave Shape Noise 257 4 Troubleshooting Principal Parts 260 5 Refrigerant Leak 289 6 Compressor Replacement Instructions 291 7 Servicing the BC controller 302 8 Troubleshooting Using the Outdoor Unit LED Error Display 305 ...

Page 195: ... 186 ...

Page 196: ...r O 4116 RPM error Motor error O O 4220 4225 Note 4320 4325 Note 108 Abnormal bus voltage drop O 109 Abnormal bus voltage rise O 111 Logic error O 131 Low bus voltage at startup O 4230 4330 Heatsink overheat protection O 4240 4340 Overload protection O 4250 4255 Note 4350 4355 Note 101 IPM error O 102 ACCT overcurrent H W detection O 103 DCCT overcurrent H W detection O 104 Short circuited IPM Gro...

Page 197: ...HHS O 5111 Temperature sensor fault BC controller Liquid inlet temperature TH11 O 5112 Bypass outlet temperature TH12 O 5115 LEV3 outlet temperature TH15 O 5116 LEV3 inlet temperature TH16 O 5201 High pressure sensor fault 63HS1 O 5201 1402 High pressure sensor fault Outdoor unit HPS BC controller PS1 O O 5203 Intermediate pressure sensor fault BC controller PS3 O 5301 4300 115 ACCT sensor fault O...

Page 198: ... MA remote controller signal transmission error Synchronization error O O 6833 MA remote controller signal transmission error H W error O O 6834 MA controller signal reception error Start bit de tection error O O 7100 Total capacity error O 7101 Capacity code setting error O O O 7102 Wrong number of connected units O O 7105 Address setting error O 7106 Attribute setting error O 7107 Port setting e...

Page 199: ...ontrol board and the Fan board 3 Cause check method and remedy 1 Faulty wiring Check the following wiring connections 1 Between Control board and Fan board 2 Between Fan board and INV board 2 INV board failure Fan board failure and Control board failure Replace the INV board or the Fan board or control board when the power turns on automatically even if the power source is reset Refer to section 7...

Page 200: ...hortage Refer to the page on refrigerant amount evaluation page 147 2 Overload operation Check operating conditions and operation status of indoor outdoor units 3 LEV failure on the indoor unit Perform a heating operation and check the operation Cooling LEV on the indoor unit LEV1 2 3 SVM1 2 SVA C Heating LEV on the indoor unit LEV3 SVB SV4a 4d Refer to the page on troubleshooting LEV page 269 4 B...

Page 201: ...t up the operation immediately stops 3 Cause check method and remedy 1301 Cause Check method and remedy 1 Inner pressure drop due to a leakage Refer to the section on troubleshooting the low pressure sensor page 265 2 Low pressure sensor failure 3 Short circuited pressure sensor cable due to torn outer rubber 4 A pin on the male connector is missing 5 Disconnected wire 6 Failure of the low pressur...

Page 202: ...ost LEV3 3 BC controller SVM1 and 2 malfunction Cooling only or defrost 4 BC controller SVA and SVC malfunction Cooling only or cooling main 5 BC controller SVB malfunction Heating only or heating main Solenoid valve SV malfunction 4a 4c P250 P300 EP200 models 4a 4d P350 P400 EP250 EP300 models Cooling only or cooling main 6 Port address setting error Confirm the port address of the indoor unit 7 ...

Page 203: ...tes or more after the first stoppage of the outdoor unit the same se quence as Item 1 above first detection is followed 4 For 30 minutes after the stop of the outdoor unit preliminary errors will be displayed on the LED display 3 Cause check method and remedy 1302 Cause Check method and remedy 1 Inner pressure drop due to a leakage Refer to the page on the troubleshooting of the high pressure sens...

Page 204: ...e unit is stopped 4 Preliminary water leakage is cancelled when the following conditions are met One hour after the preliminary water leakage was detected it is not detected that the drain pump goes from OFF to ON The operation mode is changed to Cool Dry Liquid pipe temperature inlet temperature is 10 C 18 F 3 Cause check method and remedy 2500 Cause Check method and remedy 1 Drain water drainage...

Page 205: ...eliminary water leakage was detected it is not detected that the drain pump goes from OFF to ON The operation mode is changed to Cool Dry Liquid pipe temperature inlet temperature 10 C 18 F 3 Cause check method and remedy Reference 2500 Cause Check method and remedy 1 Drain water drainage problem Clogged drain pump Clogged drain piping Backflow of drain water from other units Check for proper drai...

Page 206: ...an Fan or Stop to an error stop 2502 appears on the monitor of the units that came to an error stop 6 Forced stoppage of the outdoor unit Detection timing The error is detected whether the unit is in operation or stopped 7 Ending criteria for the forced stoppage of outdoor unit Power reset the indoor unit that was identified as the error source and the outdoor unit that is connected to the same re...

Page 207: ...ngs the outdoor unit in the same refrigerant circuit to an error stop compressor operation prohibited and the outdoor unit brings all the indoor units in the same refrigerant circuit that are in any mode other than Fan or Stop to an error stop 6 Forced stoppage of the outdoor unit Detection timing The error is detected whether the unit is in operation or stopped This error is detected whether the ...

Page 208: ...ure thermistor or suction temperature thermistor or short or open circuited Drain pump is in operation One hour has elapsed since the drain sensor went off Short 90 C 194 F or above Open 20 C 4 F or below 3 Cause check method and remedy 2503 Cause Check method and remedy 1 Faulty connector CN31 insertion 1 Check for connector connection failure Reinsert the connector restart the operation and chec...

Page 209: ...601 Cause Check method and remedy 1 The water tank of the humidifier is empty Check the amount of supply water Check for the solenoid valve and for the connection 2 The solenoid valve for humidification is OFF Check the connector 3 Disconnected float switch Check the connecting part 4 Poor operation of float switch Check for the float switch 5 Frozen water tank Turn off the power source of the wat...

Page 210: ...ircuit board failure Check the coil connections Check for coil burnout Confirm that the voltage at the CN3 connector is 198 V or above 3 Wiring failure Confirm that the voltage at the control board connector CNAC is 198 V or above If the voltage is below 198V check the wiring connection between the noise filter board CN3 noise filter board CN2 and control board CNAC Confirm that the wiring between...

Page 211: ... 4 Check method and remedy Check the items in IX 4 8 2 Troubleshooting transmission power circuit of outdoor unit on all outdoor units in the same refrigerant circuit page 292 Transmission power supply fault other than error detail code FF Outdoor unit 2 Error definition and error detection method Transmission power reception failure 3 Cause One of the outdoor units stopped supplying power but no ...

Page 212: ...se Check method and remedy 1 Power supply error Check the voltage of the power supply terminal block TB1 2 Noise filter problem Coil problem Circuit board failure Check the coil connections Check for coil burnout Confirm that the voltage at the CN3 connector is 198 V or above 3 Faulty wiring Check fuse F01 on the control board 4 Wiring failure Between noise filter CN3 and noise filter CN2 and con ...

Page 213: ... board while the inverter is stopped and if it is less than 420 V check the following items 1 Check the coil connections and for coil burnout on the noise filter 2 Check the wiring between the noise filter board and INV board 3 Check the connection to SCP1 and SC P2 on the INV board 4 Check the in rush current resistor value 5 Check the 72C resistance value 6 Check the DCL resistance value Replace...

Page 214: ...er part 4 Troubleshooting Principal Parts for error codes related to the inverter page 283 1 Error Code Logic error Detail code 111 2 Error definition and error detection method H W error If only the H W error logic circuit operates and no identifiable error is detected 3 Cause Check method and remedy In the case of 4220 In the case of 4225 Refer to section 7 Inverter under part 4 Troubleshooting ...

Page 215: ...ins at or above 105 C 221 F is detected 3 Cause check method and remedy Refer to section 7 Inverter under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 283 4220 4225 4230 Cause Check method and remedy 1 Fan board failure Refer to IX 4 7 2 6 page 287 2 Outdoor unit fan failure Check the outdoor unit fan operation If any problem is found with the fan operation c...

Page 216: ...leshooting Principal Parts for error codes related to the inverter page 283 4240 Model Imax Arms P250 EP200 19 P300 P400 EP250 EP300 27 Cause Check method and remedy 1 Air passage blockage Check that the heat sink cooling air passage is not blocked 2 Power supply environment Power supply voltage is 188 V or above 3 Inverter failure Refer to IX 4 7 page 283 4 Compressor failure Check that the compr...

Page 217: ...e case of 4250 In the case of 4255 Refer to section 7 Inverter under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 283 4250 4255 Cause Check method and remedy 1 Inverter output related Refer to IX 4 7 2 1 4 page 285 Check the IGBT module resistance value of the INV board if no problems are found Refer to the Trouble shooting for IGBT module Cause Check method ...

Page 218: ...r definition and error detection method When IPM IGBT short damage or grounding on the load side is detected just before starting the inverter 3 Cause check method and remedy In the case of 4250 In the case of 4255 Refer to section 7 Inverter under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 283 4250 Cause Check method and remedy 1 Inverter output related Re...

Page 219: ... Parts for error codes related to the inverter page 283 1 Error Code Heatsink overheat protection at startup 2 Error definition and error detection method The heatsink temperature THHS remains at or above 105 C 221 F for 10 minutes or more at inverter startup 3 Cause check method and remedy Same as 4230 error 4250 4255 Cause Check method and remedy 1 Short circuited compressor Refer to IX 4 7 2 2 ...

Page 220: ...for 3 minutes When the error is not restored after 3 minutes if restored the outdoor unit runs normally the outdoor unit makes an error stop Short detectable at 90 C 194 F or higher Open detectable at 40 C 40 F or lower Sensor error at gas side cannot be detected under the following conditions During heating operation During cooling operation for 3 minutes after the compressor turns on 3 Cause che...

Page 221: ...s detected just before the restart of the outdoor unit the outdoor unit makes an error stop and the error code 5102 5103 5104 5105 5106 or 5107 will appear During 3 minute antirestart mode preliminary errors will be displayed on the LED display A short or an open described above is not detected for 10 minutes after the compressor start during defrost mode or for 3 minutes after defrost mode 3 Caus...

Page 222: ...Detection of a short or open circuit as described above is suspended during the defrost cycle and for 3 minutes after the operation mode is changed 3 Cause check method and remedy Reference 5110 Cause Check method and remedy 1 INV board failure If the problem recurs when the unit is put into operation replace the INV board 5111 5112 5115 5116 Cause Check method and remedy 1 Thermistor failure Chec...

Page 223: ... unit makes an error stop and the error code 5201 will appear During 3 minute antirestart mode preliminary errors will be displayed on the LED display A error is not detected for 3 minutes after the compressor start during defrost operation or 3 minutes after defrost operation 3 Cause check method and remedy 5201 Cause Check method and remedy 1 High pressure sensor failure Refer to the page on the...

Page 224: ...s 5201 and 5203 will appear The unit will continue its operation by using other sensors as a backup 3 Cause check method and remedy 5201 5203 Cause Check method and remedy 1 High pressure sensor failure Refer to the page on the troubleshooting of the high pressure sensor IX 4 1 page 264 2 Pressure drop due to refrigerant leak 3 Torn wire coating 4 A pin on the male connector is missing or contact ...

Page 225: ...e 117 2 Error definition and error detection method When an error value is detected with the ACCT detection circuit just before the inverter starts 3 Cause check method and remedy Refer to section 7 Inverter under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 283 5301 Cause Check method and remedy 1 Inverter open output phase Check the output wiring connection...

Page 226: ...re startup Detection of improperly mounted ACCT sensor 3 Cause check method and remedy Refer to section 7 Inverter under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 283 5301 Cause Check method and remedy 1 Inverter output wiring problem Check output wiring connections Confirm that the U and W phase output cables are put through CT12 and CT22 on the INV board...

Page 227: ... connector for proper contact Reconnect the connector and operate the unit to check for proper operation 2 Broken or partially broken humidity sensor wire 2 Check for broken humidity sensor wire 3 Humidity sensor fault 3 Check the output voltage across No 1 and No 3 pins of connector CN30 with the connector being connected to the indoor unit control board 30 1 25V 40 1 52V 50 1 88V 60 2 19V 70 2 4...

Page 228: ... fault nonvolatile memory error 2 Error definition and error detection method This error is detected when the data cannot be read out from the built in nonvolatile memory on the remote controller 3 Cause check method and remedy 1 Remote controller failure Replace the remote controller 1 Error Code Remote controller board fault clock IC error 2 Error definition and error detection method This error...

Page 229: ...me address Outdoor units indoor units LOSSNAY units control lers such as ME remote controllers Example 6600 01 appears on the remote controller Unit 01 detected the error Two or more units in the system have 01 as their ad dress Find the unit that has the same address as that of the error source Once the unit is found correct the address Then turn off the outdoor units indoor units and LOSSNAY uni...

Page 230: ...ts connected to different outdoor units or in case of the system connected with MELANS 4 Check method and remedy 6602 NO Tightly reconnect the male power supply connector to the female power supply switch connector CN40 YES YES YES YES YES YES NO NO NO NO Is the transmission line work performed while the power is on Check the power source of the indoor unit 198 264V Check the transmission line wor...

Page 231: ...on the display on the remote controller indicates the controller where an error oc curred 3 Cause check method and remedy 6603 Cause Check method and remedy 1 The transmission processor cannot be transmit ted as the short wavelength voltage like noise ex ists consecutively on the transmission line No noise indicates that the error source controller is a fail ure If noise exists investigate the noi...

Page 232: ...accidental they will run normally If not check the causes 1 4 2 Faulty or disconnected transmission wiring of BC controller 3 Disconnected connector of BC controller CN02 4 Faulty control board of BC controller Indoor unit IC ME re mote con troller RC MA re mote con troller MA No ac knowl edgement ACK at RC trans mission to IC 1 When IC unit address is changed or modified during operation Turn off...

Page 233: ...dgement ACK at RC transmissionto IC 1 Same causes as 1 5 for sys tem with one outdoor unit 1 Turn off the power sources of the outdoor and indoor units for 5 or more minutes and turn them on again If the error is accidental the will run normal ly If not check the cause 2 2 Disconnection or short circuit of the transmission line for the out door unit on the terminal block for centralized control li...

Page 234: ... that are connect ed to different outdoor units 1 Turn off the power source of LOSSNAY for 5 or more min utes and turn it on again If the error is accidental it will run normally If not check the cause 2 2 Disconnection or short circuit of the transmission line for the outdoor unit on the termi nal block for centralized con trol line connection TB7 2 Check the causes of 1 5 If the cause is found c...

Page 235: ...LOSSNAY for 5 or more min utes and turn it on again If the error is accidental it will run normally If not check the cause 2 2 Disconnection or short circuit of the transmission line for the outdoor unit on the termi nal block for centralized con trol line connection TB7 2 Check the causes of 1 5 If the cause is found correct it If no cause is found check 3 3 When multiple outdoor units are connec...

Page 236: ...se ACK 3 System configuration 3 System connected to the system controllers MELANS 6607 Error source address Error display Detection method Cause Check method and remedy Out door unit OC ME remote controller RC System control ler SC MA remote controller MA No acknowl edgement ACK at IC transmis sion to OC Same cause as that for system with one outdoor unit Same remedy as that for system with one ou...

Page 237: ... one outdoor unit 1 Same cause as that for system with one outdoor unit 2 Error occurrence on all IC in the system with one outdoor unit 1 Check the LED display for troubleshooting on the outdoor unit 1 Total capacity error 7100 If an error is found check the check code definition and correct the error If no error is found check 2 2 Capacity code error 7101 3 Error in the number of connected units...

Page 238: ... Same remedy as that for system with one outdoor unit 1 Same cause as that for system with one outdoor unit 2 Error occurrence on all IC in the system with one outdoor unit 1 Check the LED display for troubleshooting on the out door unit 1 An error is found by the outdoor unit Total capacity error 7100 Capacity code error 7101 Error in the number of connected units 7102 Address setting error 7105 ...

Page 239: ...er 3 ME remote controller failure 2 Error occurrence on all IC in the system with one outdoor unit 1 Check the LED display for troubleshooting on the out door unit 1 An error is found by the outdoor unit Total capacity error 7100 Capacity code error 7101 Error in the number of connected units 7102 Address setting error 7105 If an error is found check the check code definition and correct the error...

Page 240: ... which some indoor units have Use either of the following two methods for deletion 2 Although the address of LOSSNAY has been changed after the interlock registration of LOSSNAY is made using ME remote controller the in door unit is keeping the mem ory of the previous address 1 Address deletion by ME remote controller Delete unnecessary address in formation using the manual set ting function of ME...

Page 241: ...oltage signal by exceeding acceptable range of transmission wiring Farthest 200m 656ft or less Remote controller wiring 12m 39ft or less 4 The transmission line voltage signal is decreased due to erroneous sizing of transmission line Wire diameter 1 25mm2 AWG16 or more 4 Check method and remedy 1 When an error occurs during commissioning turn off the power sources for the outdoor unit indoor unit ...

Page 242: ...signals from the remote controller 4 Check method and remedy 1 Check for disconnected or loose transmission lines for the indoor units or MA remote controllers 2 Confirm that the power is supplied to the main power source and the remote controller line 3 Confirm that MA remote controller s capacity limit is not exceeded 4 Check the sub main setting of the MA remote controllers One of them must be ...

Page 243: ...Check for disconnected or loose transmission lines for the indoor units or MA remote controllers 2 Confirm that the power is supplied to the main power source and the remote controller line 3 Confirm that MA remote controller s capacity limit is not exceeded 4 Check the sub main setting of the MA remote controllers One of them must be set to MAIN 5 Diagnose the remote controller described in the r...

Page 244: ...r disconnected or loose transmission lines for the indoor units or MA remote controllers 2 Confirm that the power is supplied to the main power source and the remote controller line 3 Confirm that MA remote controller s capacity limit is not exceeded 4 Check the sub main setting of the MA remote controllers One of them must be set to MAIN 5 Diagnose the remote controller described in the remote co...

Page 245: ...he signals from the remote controller 4 Check method and remedy 1 Check for disconnected or loose transmission lines for the indoor units or MA remote controllers 2 Confirm that the power is supplied to the main power source and the remote controller line 3 Confirm that MA remote controller s capacity limit is not exceeded 4 Check the sub main setting of the MA remote controllers One of them must ...

Page 246: ...turn off the power source of the outdoor and the indoor units and change the setting of the model name ca pacity code 2 The model selection switches SW5 1 5 4 on the outdoor unit are set incorrectly Check the setting for the model selection switch on the outdoor unit Dipswitches SW5 1 5 4 on the outdoor unit control board 3 The outdoor unit and the auxiliary unit OS that is connected to the same s...

Page 247: ... on indoor unit board When the model name set by the switch is different from that of the unit connected turn off the power source of the outdoor and the indoor units and change the setting of the capacity code The capacity of the indoor unit can be confirmed by the self diagnosis function SW1 operation of the outdoor unit Outdoor unit 2 The model selection switches SW5 1 5 4 on the outdoor unit a...

Page 248: ...nected transmission line from the outdoor unit or BC controller 3 Short circuited transmission line When 2 and 3 apply the following display will appear ME remote controller Nothing appears on the remote controller be cause it is not powered MA remote controller HO or PLEASE WAIT blinks 4 The model selection switch SW5 7 on the out door unit is set to OFF Normally set to ON 5 Outdoor unit address ...

Page 249: ...re set to 00 or a number between 51 and 100 If the outdoor unit address is out of the valid range reset the address with the power to the outdoor unit turned off If the BC controller address is out of the valid range reset the address with the power to both the outdoor unit and BC controller turned off 7106 Error source Cause Check method and remedy A remote controller for use with indoor units su...

Page 250: ...h is connected to the BC controller Sub1 iii he indoor unit address which is connected to the BC controller Sub2 Address setting i ii iii ii and iii can be reversed Model total Total port number Single branching 2 branches merge 140 250 Change the port No Is there a BC controller Sub Are 4 or more indoor units connected to the same port Is the model total of indoor units connected to the same port...

Page 251: ...by the booster being connected to the switch on the indoor unit The unit will not function properly unless the transmission booster is turned on 2 Power resetting of the transmission booster and outdoor unit Reset the power to the outdoor unit 3 Wiring failure between OC and OS 2 Confirm that the TB3 on the OC and OS are properly connected 4 Broken wire between OC and OS 3 Check the model selectio...

Page 252: ...control board and inverter board Replace ment of the circuit board with the wrong one 3 Check the model selection switch on the outdoor unit Dipswitch SW5 7 on the control board 7117 Error source Cause Check method and remedy Outdoor unit 1 Wiring failure 1 Control board connector Check the CNTYP2 4 5 connector connec tion Inverter board connection Check the CNTYP connector connection P300 P400 EP...

Page 253: ...ection of the wire for the MA remote controller and the M NET transmission line on the indoor unit 3 The number of the MA remote controllers that are connected to an indoor unit exceeds the allowable range 2 units 4 The length or the diameter of the wire for the MA remote controller are out of specification 5 Short circuit of the wire for the remote display output of the outdoor unit or reversed p...

Page 254: ...tem to which the power supply unit for transmission lines is connected the male power supply connector is connect ed to the female power supply switch connector CN40 on the outdoor unit 4 Disconnected M NET transmission line on the indoor unit side 5 Disconnected wire between the terminal block for M NET line TB5 of the indoor unit and the indoor unit board CN2M or disconnected connector 2 Check m...

Page 255: ...ontroller Short circuited wire for the MA remote controller Disconnected wire for the MA remote controller No 2 and disconnected line to the terminal block Reversed daisy chain connection between groups Incorrect wiring for the MA remote controller to the terminal block for transmission line connection TB5 on the indoor unit The M NET transmission line is connected incorrectly to the terminal bloc...

Page 256: ...heck the indoor unit on which LED2 is lit All the indoor unit power failure All the indoor unit power failure Error display Error display Thermo is OFF Is operation possible Short circuit of the remote controller After turning the power on check whether HO PLEASE WAIT is displayed on the remote controller After more than 20 seconds since turning the power on is LED2 check of the indoor control boa...

Page 257: ...cted line to the terminal block The indoor transmission line is connected incorrectly to the transmission terminal block for centralized controller TB7 4 Disconnected transmission line on the remote controller 5 Remote controller failure 6 Outdoor unit failure Refer to IX 8 Troubleshooting Using the Outdoor Unit LED Error Display page 309 2 Check method and remedy 1 Check voltage of the transmissi...

Page 258: ...indoor unit control board Is it lit When it is lit When it is off or cannot be checked Check for the change of LED display by operating dip switch SW1 for self diagnosis Check voltage of the power supply terminal on the indoor unit AC220V Check the fuse on the circuit board Melted Check 200V circuit for short circuit and ground fault Check the connection of the connector Check the main power of th...

Page 259: ...ol TB7 of the outdoor unit 13 The male power supply connector is connected to CN40 on more than one outdoor unit or the connector is connected to CN40 on the outdoor unit in the system to which a power supply unit for transmission line is connected Using MELANS 14 When MELANS is used HO display on the remote controller will disappear when the indoor unit and the local remote con troller ME remote ...

Page 260: ... to different outdoor units are grouped 6 The power of the outdoor unit to be confirmed has been cut off 5 Check the power supply of the outdoor unit which is coupled with the unit to be confirmed 7 The power of the outdoor unit to be confirmed has been cut off 6 Check that the transmission line for centralized control TB7 of the outdoor unit is not disconnect ed 8 When the indoor units connected ...

Page 261: ... causes insufficient capacity SW1 setting Note Protection works and compressor frequency does not rise even at higher Te than Tem due to high dis charge temperature and high pressure At high discharge temperature Refer to 1102 page 195 At high pressure Refer to 1302 page 197 2 Indoor unit LEV malfunction Refer to the page of LEV troubleshooting 4 5 page 269 Insufficient refrigerant flows due to LE...

Page 262: ...ront of and behind the place where the foreign object is clogging the pipe upstream side and downstream side When the temperature drops significantly the foreign object may clog the pipe Remove the foreign object inside the pipe 8 The indoor unit inlet temperature is excessively Less than 15 C 59 F WB Check the inlet air temperature and for short cy cling Change the environment where the indoor un...

Page 263: ...ck the pressure sensor Refer to the page on Trouble shooting of Pressure Sensor Note Higher inlet pressure by the high pressure sensor than the actual pressure causes insufficient capac ity SW1 setting 2 Check the difference between the condensing tem perature Tc and the target condensing tempera ture Tcm with self diagnosis LED Note Higher Tc than Tcm causes insufficient capacity SW1 setting Note...

Page 264: ...hange the pipe 7 Piping size is not proper thin 8 Clogging by foreign object Check the temperature difference between the up stream and the downstream of the pipe section that is blocked Since blockage in the extended section is difficult to locate operate the unit in the cooling cycle and follow the same procedures that are used to locate the blockage of pipe during cooling operation Remove the b...

Page 265: ...y with SW1 Refer to the reference page for each error mode 1 Abnormal high pressure 2 Abnormal discharge air temperature 3 Heatsink thermistor failure Display the indoor piping temperature table with SW1 to check whether the freeze proof operation runs properly and check the temperature 4 Thermistor failure 5 Pressure sensor failure 6 Over current break 7 Refrigerant overcharge Note1 Frost prevent...

Page 266: ...ded 2 The sectional voltage level of transmission signal should be as follows Cause Erroneous operation Error code Error code definition Noise interference on the transmission line Signal is transformed and will be misjudged as the signal of another address 6600 Address overlap Transmission wave pattern is transformed due to the noise creating a new signal 6602 Transmission pro cessor hardware er ...

Page 267: ...n line can not escape leading to change of the transmission signal 6 Check the treatment meth od of the shield of the transmission line for cen tralized control The transmission cable for centralized control is less subject to noise interference if it is grounded to the outdoor unit whose power jumper cable was moved from CN41 to CN40 or to the power sup ply unit The environment against noise vari...

Page 268: ...ation between the MA remote controller and the indoor unit is interrupted for 3 minutes in a row MA transmission error 6831 will occur 2 Confirmation of transmission specifications and wave pattern A B No polarity Across terminal No 1 2 Power supply 9V to 12VDC Satisfies the formula 12 msec bit 5 Voltage among terminals must be between DC9 and 12 V TB15 A B 1 2 MA remote controller Transmission wa...

Page 269: ...e high pressure sensor has a problem 3 Remove the high pressure sensor from the control board to check the pressure on the self diagnosis LED1 1 When the pressure displayed on self diagnosis LED1 is between 0 and 0 098MPa 14psi the high pressure sensor has a problem 2 When the pressure displayed on self diagnosis LED1 is approximately 4 15MPa 601psi the control board has a problem 4 Remove the hig...

Page 270: ...a problem 2 When the pressure displayed on self diagnosis LED1 is approximately 1 7MPa 247psi the control board has a problem When the outdoor temperature is 30 C 86 F or less the control board has a problem When the outdoor temperature exceeds 30 C 86 F go to 5 4 Remove the low pressure sensor from the control board and short circuit between the No 2 and 3 connectors 63LS CN202 to check the press...

Page 271: ...ing the temperature as the pipe on the oil separator side will be hot Do not give an impact from outside as the outer hull will be deformed leading to the malfunction of the inner valve 2 In case of SV1a Bypass valve This solenoid valve opens when powered Relay ON 1 At compressor start up the SV1a turns on for 4 minutes and the operation can be checked by the self diagnosis LED display and the clo...

Page 272: ...ion sound of the solenoid valve 4 The diagram on the next page shows the refrigerant flow This diagram shows the flow of the high temperature high pressure gas refrigerant in the Cooling only and Cooling main modes and the flow of the low temperature gas liquid refrigerant in the Heating only and Heating main modes Refer to the refrigerant circuit diagram Solenoid valves turns on and off according...

Page 273: ...oil Pin face tool Tightening torque 150N m 1500kg cm SV4c SV4b SV4a ST1 CV8a CV6a TH7 TH3 SV4a SV4d TH6 CV9a CV10a SV5b CV4a CV2a CV7a CV3a CV5a HEX BV1 BV2 SV5c SV4b SV4c SV4d SV4c SV4b SV4a Solenoid Valves Block Refrigerant Circuit Figure P350 P400 EP250 EP300 models Solenoid valve block four compartments P350 P400 EP250 EP300 models ...

Page 274: ...e temperature by touching the pipe 4 Outdoor Unit Fan To check the revolution of the fan check the inverter output state on the self diagnosis LED as the inverter on the outdoor fan controls the revolutions of the fan The revolution of the fan is approximately 680rpm P250 P350 and EP200 mod els 790rpm P400 EP250 and EP300 models at full speed When starting the fan the fan runs at full speed for 5 ...

Page 275: ...nnot run smoothly and rattles and vibrates When the power is turned on the valve closing signal of 2200 pulses will be output from the indoor board to LEV to fix the valve position It must be fixed at point A When the valve operates smoothly no sound from LEV or no vibration occurs however when the pulses change from E to A in the chart or the valve is locked a big sound occurs Whether a sound is ...

Page 276: ...ce the LEV coils Incomple sealing leak from the valve When checking the refrigerant leak from the indoor LEV run the target indoor unit in the fan mode and the other indoor units in the cooling mode Then check the liquid temperature TH22 with the self diagnosis LED When the unit is running in the fan mode the LEV is ful ly closed and the temperature detected by the thermis tor is not low If there ...

Page 277: ...the pressure sensor connector in trouble is not faulty OK OK Check that the difference between each detected pressure is 0 098MPa 14psi or less OK Both the board and the pressure sensor are normal OK Is Pd P1 P3 Ps Remove the pressure sensor connector from the board and check the pressure OK OK Check whether the refrigerant pipe and the transmission line are connected correctly between the indoor ...

Page 278: ...plied pressure sensor is disconnected from the board Cooling only Heating only Heating main Non cooling Indoor heating SC small Heating indoor Thermo ON Especially noise is large Indoor heating SC small Heating indoor Thermo ON Especially noise is large Cooling main Symptoms SC11 large SC16 small PHM large SC11 large SC16 small PHM large Non cooling Normal SC11 large SC16 small PHM large Measureme...

Page 279: ...istor and the temperature measured by a commercially available thermometer and check whether there is no difference between them Insert the connector of the thermistor in trouble into the board check the sensor inlet temperature on the LED monitor and check the temperature difference START Normal Troubleshooting instructions for thermistor Replace the thermistor Temperature difference Temperature ...

Page 280: ... below When the result is 10 it is normal 3 Check the self diagnosis switch Outdoor control board SW1 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON TH12 TH15 TH12 TH15 Liquid inlet temperature Bypass outlet temperature Bypass outlet temperature Bypass ou...

Page 281: ...is fully open Check that LEV1 is fully open Check that SVA and SVC are ON Check that SVA and SVC are OFF Cooling or heating operation Note 2 Heating operation Check whether LEV3 is controlling superheat Check LEV1 Check LEV3 Check SVA and SVC Check SVB LEV1 is fully open Check whether LEV 3 is controlled by the value of the differential pressure LEV1 is fully open Note 3 Note 2 Note 3 YES NO Cooli...

Page 282: ...n cooling and non heating SH12 small SC11 small SH16 large but branch pipe SC small BC controller sound PHM large Indoor heating SC small PHM large Non cooling Indoor heating SC small PHM large Part Malfunction mode Operation mode Content Standards of judgment on unit stable operation G GA HA type LEV1 Inclined to close Heating only Heating main Cooling main Difference between high pressure P1 and...

Page 283: ... 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON 1 2 3 4 5 6 7 8 9 10 ON LEV1 opening LEV3 opening LEV3 opening BC controller bypass outlet superheat BC controller intermediate part subcool SH12 LEV2 opening LEV3 opening SC16 BC controller liquid side subcool SC11 Measurement data SW1 setting value Symbol G GA HA Standard main GB HB Sub 1 GB HB Sub 2 ...

Page 284: ... of the lead wires visually Intermediate connector Control board Check that no refrigerant leaks from LEV Pull out the connector from the board and check that the electricity runs with a tester The wiring side of CN05 and 07 Among 1 3 and 5 and among 2 4 and 6 Check the resistance between each coil with a tester between red and white red and orange brown and yellow and brown and blue and check tha...

Page 285: ...pstream and downstream pipes of the solenoid valve When the solenoid valve is ON There is no temperature difference When the solenoid valve is OFF There is a temperature difference OK Remove the solenoid valve coil and check that there is a suction force There is a suction force Note 2 Note 2 Note 2 Measure the temperature at the upstream and downstream pipes of the solenoid valve and compare them...

Page 286: ...SVA SVB SVC Measure the temperature at the upstream and downstream pipes and of SVA Measure the temperature at the upstream and downstream pipes and of SVA Mode Cooling Heating Stopped Defrost Fan Port SVA ON OFF OFF OFF OFF SVB OFF ON OFF OFF OFF SVC ON OFF OFF OFF ON Operation mode Cooling only Cooling main Heating only Heating main Defrost Stopped SVM1 SVM1b ON Pressure dif ferential con trol O...

Page 287: ...713A GB 4 BC controller transformer Before measuring the resistance pull out the connector Normal Abnormal CNTR 1 3 about 58 ohm Open phase or shorting CN03 1 3 about 1 6 ohm CNTR CN03 BC controller control board Red White Red Red ...

Page 288: ...rd has dropped to DC20V or less It takes about 10 minutes to discharge electricity after the power supply is turn off 2 The IPM on the inverter becomes damaged if there are loose screws are connectors If a problem occurs after replacing some of the parts mixed up wiring is often the cause of the problem Check for proper connection of the wiring screws connectors and Faston terminals 3 To avoid dam...

Page 289: ...or is in operation page 287 8 Noise is picked up by the peripheral device 1 Check that power supply wiring of the peripheral device does not run close to the power supply wiring of the outdoor unit 2 Check if the inverter output wiring is not running parallel to the power supply wiring and the transmission lines 3 Check that the shielded wire is used as the transmission line when it is required an...

Page 290: ...ace the INV board 3 ACCT sensor circuit failure 5301 Detail code No 117 Replace the INV board 4 IPM open 5301 Detail code No 119 Normal 2 Check for compressor ground fault or coil error Disconnect the compressor wiring and check the com pressor Meg and coil resis tance 1 Compressor Meg failure Error if less than 1 Mohm Check that there is no liquid re frigerant in the compressor If there is none r...

Page 291: ...Error code 4250 Detail code 101 106 107 a Check items 1 through 3 for problems b Check that high and low pressures are bal anced c Check that no liquid re frigerant is present in the compressor ĺGo to d when the problem persists after compressor startup was repeated several times If normal operation is restored check the crankcase heater for problems d Check that there is a pressure difference be ...

Page 292: ... Remedy 1 Check the breaker capacity Use of a non specified break er Replace it with a specified breaker 2 Perform Meg check between the terminals on the power terminal block TB1 Zero to several ohm or Meg failure Check each part and wiring Refer to 5 Simple checking Procedures for individual components of main inverter circuit page 289 IGBT module Rush current protection resistor Electromagnetic ...

Page 293: ...RATION When measuring one device alone measure near the device s power supply terminal block Items to be checked Phenomena Remedy 1 Check the earth leakage breaker capacity and the sensitivity cur rent Use of a non specified earth leakage breaker Replace with a regulation earth leakage breaker 2 Check the resistance at the power supply terminal block TB1 with a megger Failure resistance value Chec...

Page 294: ... Disconnect all the wiring connected the INV board and make the measurement 2 Tester restriction Use the tester whose internal electrical power source is 1 5V or greater Use the dry battery powered tester The accurate diode specific resistance cannot be measured with the button battery powered card tester as the applied volt age is low Use a low range tester if possible A more accurate resistance ...

Page 295: ... SC P1 FT N SC L1 SC L2 SC L3 Red SC P1 5 200 ohm 5 200 ohm 5 200 ohm FT N SC L1 5 200 ohm SC L2 5 200 ohm SC L3 5 200 ohm Black SC P2 FT N SC U SC V SC W Red SC P2 5 200 ohm 5 200 ohm 5 200 ohm FT N SC U 5 200 ohm SC V 5 200 ohm SC W 5 200 ohm SC U SC W SC V FT N SC P1 SC P2 SC L1 SC L2 SC L3 ...

Page 296: ...k for transmission line connection DC 17 30 V AC 380 415V Terminal block for power source TB1 Noise filter Noise filter Fuse Fuse Fuse 72C LEV Fuse Surge protection INV board Control board Fan board 63H1 72C DCL DC DC converter Detection circuit for the power supply to the transmission line M NET board DC DC converter Microcomputer Microcomputer Microcomputer 5 V Power supply 18VPowersupply 12V Po...

Page 297: ...horted transmission line or power feed collision for centralized control Replace the control board Check the voltage between No 1 and No 2 pins of the CN102 on the power supply board for the transmission line Check the voltage between No 1 and No 3 pins of the noise filter CN4 Check the voltage between No 1 and No 3 pins of the noise filter CN5 Check the noise filter F4 fuse Check the voltages amo...

Page 298: ...2 Leak spot In the case of outdoor unit Cooling season 1 Run all the indoor units in the cooling test run mode 1 To run the indoor unit in test run mode turn SW3 2 from ON to OFF when SW3 1 on the outdoor control board is ON 2 Change the setting of the remote controller for all the indoor units to the cooling mode 3 Check that all the indoor units are performing a cooling operation 2 Check the SC1...

Page 299: ... BV2 4 Collect the refrigerant that remains inside the indoor unit Do not discharge refrigerant into air into the atmosphere when it is collected 5 Repair the leak 6 After repairing the leak perform evacuation of the extension pipe 1 for the indoor unit and open the ball valves BV1 and BV2 to adjust refrigerant 4 Leak spot In the case of outdoor unit Heating season 1 Collect the refrigerant in the...

Page 300: ...ents and replace the compressor Reassemble them in the reverse order after replacing the compressor Compressor replacement procedures 1 Remove both the top and bottom service panels front panels 3 Remove the wires that are secured to the frame and remove the frame Electric wiring Frame Service panel Control box Compressor cover front 2 Remove the control box and the compressor cover front ...

Page 301: ... material Suction piping Protection for the compressor cover 6 Place protective materials on the insulation lining of the compressor cover and on the sealing material on the compressor suction pipe to protect them from the torch flame debraze the pipe and replace the compressor Belt heater Compressor covers right and left The inside of the compressor cover is lined with sound insulation material ...

Page 302: ...SV4d replacement procedures To remove Solenoid valve block ASSY Remove the solenoid valve block coil cover solenoid valve coil and peripheral cables Remove the screw M5 that fixes the solenoid valve block and the supporting plate for solenoid valve block Cut the pipe at the position indicated on the next page with a pipe cutter Remove the pipe from the brazed A part Debraze B G parts total 6 place...

Page 303: ...g solenoid valve block Solenoid valve block Supporting plate for solenoid valve block Screw M5 Brazing connecting pipe φ9 52 3 8 Brazing heat exchanger header side Brazing Solenoid valve block side Service patrs set supplied connecting pipe φ9 52 3 8 Brazing or debrazing pipes D φ28 6 1 1 8 E φ9 52 3 8 F φ9 52 3 8 G φ15 88 5 8 This figure does not show heat exchanger D C B E F G Removed Solenoid v...

Page 304: ...lenoid valve block ASSY SV4a SV4b SV4d replacement procedures on the front page H φ19 05 3 4 I φ15 88 5 8 Heat exchanger J φ12 7 1 2 K φ6 35 1 4 After removing Solenoid valve block ASSY Part A Refer to the next page Precautions for replacing Check valve Be sure to perform no oxidation brazing when brazing Place a wet towel on the check valve when heating pipes to keep the temperature of the valve ...

Page 305: ...88 5 8 CV10a CV9a 8 φ15 88 5 8 6 φ15 88 5 8 4 φ15 88 5 8 Q Check valve ASSY H 1 φ28 6 1 1 8 3 φ15 88 5 8 I CV8a K G J Angle of the pipes when replacing CV8a CV9a CV10a Figure as viewed from point Q 8 6 4 When replacing CV4a Remove the brazing 1 When replacing CV6a Remove the brazing 2 When replacing CV8a Remove the brazing 3 and 4 When replacing CV9a Remove the brazing 5 and 6 When replacing CV10a...

Page 306: ...ASSY SV4a SV4b SV4c SV4d replacement procedures To remove Solenoid valve block ASSY Remove the solenoid valve block coil cover solenoid valve coil and peripheral cables Remove the screw M5 that fixes the solenoid valve block and the supporting plate for solenoid valve block Cut the pipe at the position indicated on the right figure with a pipe cutter Remove the pipe from the brazed A part Debraze ...

Page 307: ...ing connecting pipe φ9 52 3 8 Brazing heat exchanger header side Brazing Solenoid valve block side Service parts set supplied connecting pipe φ9 52 3 8 Brazing or debrazing pipes Removing Solenoid valve block ASSY E φ28 6 1 1 8 F φ9 52 3 8 G φ15 88 5 8 This figure does not show heat exchanger E B F C D H G Removed Solenoid valve block ASSY H φ9 52 3 8 Refer to the next page for Check valve CV4a CV...

Page 308: ...d valve block ASSY SV4a SV4b SV4c SV4d replacement procedures on the front page Precautions for replacing Check valve Be sure to perform no oxidation brazing when brazing Place a wet towel on the check valve when heating pipes to keep the temperature of the valve from exceed ing 120 C 248 F After brazing check the condition around the brazing After confirming no leakage evacuate the air inside 1 P...

Page 309: ...V10a Figure as viewed from point Q 8 6 4 When replacing CV4a Remove the brazing 1 When replacing CV6a Remove the brazing 2 When replacing CV8a Remove the brazing 3 and 4 When replacing CV9a Remove the brazing 5 and 6 When replacing CV10a Remove the brazing 7 and 8 O N CV6a CV4a 2 φ15 88 5 8 7 φ15 88 5 8 5 φ25 4 1 CV10a CV9a 8 φ15 88 5 8 6 φ25 4 1 4 φ28 6 1 1 8 Q Check valve ASSY L 1 φ28 6 1 1 8 3 ...

Page 310: ... Ԙԙ below and replace the parts Low pressure twinning kit optional accessory is built in 12 HP PURY P300YHM A BS Precautions for starting replacement Check that the main power supply is OFF Check that no refrigerant is in the outdoor unit Heat exchanger A φ9 52 3 8 Compressor cover Low pressure twinning kit optional accessory B φ6 35 1 4 NO 1 Solenoid valve SV1a A NO 2 Capillary tube ASSY CP1 B So...

Page 311: ...d remove the ceiling panel Work procedure Explanatory figure 1 To check the inside of the control box remove the two lock nuts on the control box cover 1 Check the terminal connection of the power wire or of the transmission line 2 Check the transformer 3 Check the address switch 2 When the control board is replaced the followings must be noted 1 Check that the board type is G GA HA or GB HB 2 Che...

Page 312: ...eplace the temperature sensor with the new one 4 Connect the lead wire of the temperature sensor se curely on the control board Work procedure Explanatory figure 1 Remove the service panel 1 For the pressure sensors PS1 and PS3 refer to 1 1 2 2 Remove the pressure sensor connector in trouble from the control board and insulate the connector 1 Liquid side pressure sensor CNP1 2 Intermediate part pr...

Page 313: ...y figure 1 Remove the service panel See figure at right 2 Remove the connector of the solenoid valve in trou ble 3 Remove the solenoid valve coil 1 The coils on the solenoid valves SVA SVB SVM1 SVM1b SVM2 and SVM2b can be serviced through the inspection door SVC is accessible for replacement by removing the four mounting screws on the rear panel and removing the panel if enough space is available ...

Page 314: ...sconnected there is a problem with the wiring to those connectors or with the connectors themselves 3 If nothing appears on the display under item 2 above AND the voltage between pins 1 and 3 of CNDC is within the range between 220 VDC and 380 VDC control board failure is suspected 3 Only the software version appears on the LED display 1 Only the software version appears while the transmission cab...

Page 315: ... 306 IX Troubleshooting GB HWE0713A ...

Page 316: ... 307 HWE0713A GB X LED Monitor Display on the Outdoor Unit Board 1 How to Read the LED on the Service Monitor 309 ...

Page 317: ... 308 ...

Page 318: ...s can be checked by making the switch setting that corresponds to No 517 in the LED display table Only item No 1 Software Version appears on the display if there is a wiring failure between the control board and the trans mission line power supply board or if the circuit board has failed 1 Display of numerical values Example When the pressure data sensor reads 18 8kg cm2 Item No 58 The unit of pre...

Page 319: ...er is turned off and then on again the count will resume from the time before the power was turned off Thus the time that differs the actual time will be displayed This also applies when a power failure occurs The system controller such as G B 50A adjusts the time once a day When the system controller is connected the time will be automatically updated to the correct current time after the time se...

Page 320: ...C and BC 0000 to 9999 Address and error codes highlighted B If no errors are detected appears on the dis play 3 1100000000 Relay out put display 2 Top 21S4a CH11 SV1a SV2 A A Bottom SV5b 4 0010000000 Relay out put display 3 Top SV4a SV4b SV4c SV5c SV4d SV9 Power sup ply for indoor transmis sion line A A Bottom 5 1010000000 6 0110000000 7 1110000000 Special control Retry opera tion Emergency operat...

Page 321: ...No 22 Unit No 23 Unit No 24 Bottom Unit No 25 Unit No 26 Unit No 27 Unit No 28 Unit No 29 Unit No 30 Unit No 31 Unit No 32 18 0100100000 Top Unit No 33 Unit No 34 Unit No 35 Unit No 36 Unit No 37 Unit No 38 Unit No 39 Unit No 40 Bottom Unit No 41 Unit No 42 Unit No 43 Unit No 44 Unit No 45 Unit No 46 Unit No47 Unit No 48 19 1100100000 Top Unit No 49 Unit No 50 Bottom 20 0010100000 Indoor unit Oper...

Page 322: ...t No47 Unit No 48 27 1101100000 Top Unit No 49 Unit No 50 Bottom 28 0011100000 29 1011100000 30 0111100000 31 1111100000 32 0000010000 33 1000010000 34 0100010000 35 1100010000 36 0010010000 37 1010010000 BC operation mode Cooling only ON Cooling only OFF Heating only ON Heating only OFF Mixed mode ON Mixed mode OFF Fan Stop B 38 0110010000 39 1110010000 Outdoor unit Operation mode Permissible sto...

Page 323: ...he unit is C 57 1001110000 THBOX 99 9 to 999 9 A A 58 0101110000 High pressure sensor data 99 9 to 999 9 A A The unit is kgf cm 2 59 1101110000 Low pressure sensor data 99 9 to 999 9 A A 60 0011110000 61 1011110000 62 0111110000 63 1111110000 64 0000001000 65 1000001000 66 0100001000 67 1100001000 68 0010001000 69 1010001000 70 0110001000 71 1110001000 Current data No SW1 Item Display Unit A B 1 R...

Page 324: ...es OC OS 0000 to 9999 B Control data Hz 87 1110101000 Total frequency of each unit 0000 to 9999 A A 88 0001101000 COMP frequency 0000 to 9999 A A 89 1001101000 90 0101101000 91 1101101000 92 0011101000 93 1011101000 All AK OC OS 0000 to 9999 B 94 0111101000 AK 0000 to 9999 A A 95 1111101000 FAN 0000 to 9999 A A Fan output 96 0000011000 Fan inverter output fre quency 0000 to 9999 A A Twice the actu...

Page 325: ...t is V 112 0000111000 113 1000111000 114 0100111000 115 1100111000 116 0010111000 Number of times the unit went into the mode to remedy wet vapor suction 0000 to 9999 B 117 1010111000 COMP Operation time Upper 4 digits 0000 to 9999 A A The unit is h 118 0110111000 COMP Operation time Lower 4 digits 0000 to 9999 A A 119 1110111000 120 0001111000 Current data No SW1 Item Display Unit A B 1 Remarks 1...

Page 326: ...operation time of compressor for rotation purpose 0000 to 9999 B The unit is h 130 0100000100 131 1100000100 132 0010000100 Relay out put display BC Main Top SVM1 SVM2 SVM1b SVM2b B Bottom 133 1010000100 Top SVA1 SVB1 SVC1 SVA2 SVB2 SVC2 B Bottom SVA3 SVB3 SVC3 SVA4 SVB4 SVC4 134 0110000100 Top SVA5 SVB5 SVC5 SVA6 SVB6 SVC6 B Bottom SVA7 SVB7 SVC7 SVA8 SVB8 SVC8 135 1110000100 Top SVA9 SVB9 SVC9 S...

Page 327: ...Bottom SVA7 SVB7 SVC7 SVA8 SVB8 SVC8 145 1000100100 Top SVA9 SVB9 SVC9 SVA10 SVB10 SVC10 B Bottom SVA11 SVB11 SVC11 SVA12 SVB12 SVC12 146 0100100100 Top SVA13 SVB13 SVC13 SVA14 SVB14 SVC14 B Bottom SVA15 SVB15 SVC15 SVA16 SVB16 SVC16 147 1100100100 148 0010100100 149 1010100100 BC Main or standard TH11 99 9 to 999 9 B 150 0110100100 BC Main TH12 99 9 to 999 9 B 151 1110100100 BC Main TH15 99 9 to ...

Page 328: ...opening Fully open 2000 164 0010010100 BC Sub2 TH12 99 9 to 999 9 B 165 1010010100 BC Sub2 TH25 99 9 to 999 9 B 166 0110010100 BC Sub2 LEV3 0000 to 2000 B LEV3a opening Fully open 2000 167 1110010100 BC Main LEV2 0000 to 2000 B LEV2 opening Fully open 2000 168 0001010100 169 1001010100 170 0101010100 171 1101010100 172 0011010100 173 1011010100 174 0111010100 175 1111010100 176 0000110100 177 1000...

Page 329: ...rter Error details of inverter 0001 0120 A A 188 0011110100 Error history 6 0000 to 9999 B B 189 1011110100 Error details of inverter Error details of inverter 0001 0120 A A 190 0111110100 Error history 7 0000 to 9999 B B 191 1111110100 Error details of inverter Error details of inverter 0001 0120 A A 192 0000001100 Error history 8 0000 to 9999 B B 193 1000001100 Error details of inverter Error de...

Page 330: ...door unit Operation mode Permissible stop Standby Cooling Cooling main Heating Heating main A A 206 0111001100 207 1111001100 208 0000101100 Outdoor unit control mode Stop Thermo OFF Abnormal stop Scheduled control Initial start up Defrost Oil balance Low fre quency oil recovery A A 209 1000101100 Refrigerant recovery A A 210 0100101100 211 1100101100 Relay output display 1 Lighting Comp in op era...

Page 331: ...nit is C 228 0010011100 THBOX 99 9 to 999 9 A A 229 1010011100 High pressure sensor data 99 9 to 999 9 A A The unit is kgf cm 2 230 0110011100 Low pressure sensor data 99 9 to 999 9 A A 231 1110011100 232 0001011100 233 1001011100 234 0101011100 235 1101011100 236 0011011100 237 1011011100 238 0111011100 239 1111011100 240 0000111100 241 1000111100 242 0100111100 Data before error No SW1 Item Disp...

Page 332: ...frequencies OC OS 0000 to 9999 B Control data Hz 258 0100000010 Total frequency of each unit 0000 to 9999 A A 259 1100000010 COMP frequency 0000 to 9999 A A 260 0010000010 261 1010000010 262 0110000010 263 1110000010 264 0001000010 All AK OC OS 0000 to 9999 B 265 1001000010 AK 0000 to 9999 A A 266 0101000010 FAN 0000 to 9999 A A Fan inverter output 267 1101000010 Fan inverter output fre quency 000...

Page 333: ... voltage 00 0 to 999 9 A A The unit is V 283 1101100010 284 0011100010 285 1011100010 286 0111100010 287 1111100010 288 0000010010 COMP Operation time Upper 4 digits 0000 to 9999 A A The unit is h 289 1000010010 COMP Operation time Lower 4 digits 0000 to 9999 A A 290 0100010010 291 1100010010 292 0010010010 293 1010010010 Data before error No SW1 Item Display Unit A B 1 Remarks 1234567890 LD1 LD2 ...

Page 334: ... Lower 4 digits 0000 to 9999 A A 296 0001010010 297 1001010010 298 0101010010 299 1101010010 300 0011010010 Integrated operation time of compressor for rotation purpose 0000 to 9999 B The unit is h Data before error No SW1 Item Display Unit A B 1 Remarks 1234567890 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 OC OS 1 A The condition of either OC or OS is displayed individually B The condition of the entire ref...

Page 335: ...10 0110110010 311 1110110010 312 0001110010 313 1001110010 314 0101110010 315 1101110010 316 0011110010 317 1011110010 318 0111110010 319 1111110010 320 0000001010 BC Main TH11 99 9 to 999 9 B 321 1000001010 BC Main TH12 99 9 to 999 9 B 322 0100001010 BC Main TH15 99 9 to 999 9 B 323 1100001010 BC Main TH16 99 9 to 999 9 B 324 0010001010 BC Main PS1 99 9 to 999 9 B 325 1010001010 BC Main PS3 99 9 ...

Page 336: ...o 999 9 B 336 0000101010 BC Sub2 TH25 99 9 to 999 9 B 337 1000101010 BC Sub2 LEV3 0000 to 2000 B 338 0100101010 BC Main LEV2 0000 to 2000 B 339 1100101010 340 0010101010 341 1010101010 342 0110101010 343 1110101010 344 0001101010 345 1001101010 346 0101101010 347 1101101010 348 0011101010 349 1011101010 350 0111101010 Current data No SW1 Item Display Unit A B 1 Remarks 1234567890 LD1 LD2 LD3 LD4 L...

Page 337: ...ss capacity code 0000 to 9999 0000 to 9999 358 0110011010 IC8 Address capacity code 0000 to 9999 0000 to 9999 359 1110011010 IC9 Address capacity code 0000 to 9999 0000 to 9999 360 0001011010 IC10 Address capacity code 0000 to 9999 0000 to 9999 361 1001011010 IC11 Address capacity code 0000 to 9999 0000 to 9999 362 0101011010 IC12 Address capacity code 0000 to 9999 0000 to 9999 363 1101011010 IC13...

Page 338: ...y code 0000 to 9999 0000 to 9999 382 0111111010 IC32 Address capacity code 0000 to 9999 0000 to 9999 383 1111111010 IC33 Address capacity code 0000 to 9999 0000 to 9999 384 0000000110 IC34 Address capacity code 0000 to 9999 0000 to 9999 385 1000000110 IC35 Address capacity code 0000 to 9999 0000 to 9999 386 0100000110 IC36 Address capacity code 0000 to 9999 0000 to 9999 387 1100000110 IC37 Address...

Page 339: ...city code 0000 to 9999 0000 to 9999 401 1000100110 402 0100100110 403 1100100110 404 0010100110 405 1010100110 406 0110100110 407 1110100110 408 0001100110 IC1 Suction temperature 99 9 to 999 9 B The unit is C 409 1001100110 IC2 Suction temperature 99 9 to 999 9 410 0101100110 IC3 Suction temperature 99 9 to 999 9 411 1101100110 IC4 Suction temperature 99 9 to 999 9 Data on indoor unit system No S...

Page 340: ...ure 99 9 to 999 9 424 0001010110 IC17 Suction temperature 99 9 to 999 9 425 1001010110 IC18 Suction temperature 99 9 to 999 9 426 0101010110 IC19 Suction temperature 99 9 to 999 9 427 1101010110 IC20 Suction temperature 99 9 to 999 9 428 0011010110 IC21 Suction temperature 99 9 to 999 9 429 1011010110 IC22 Suction temperature 99 9 to 999 9 430 0111010110 IC23 Suction temperature 99 9 to 999 9 431 ...

Page 341: ... 9 450 0100001110 IC43 Suction temperature 99 9 to 999 9 451 1100001110 IC44 Suction temperature 99 9 to 999 9 452 0010001110 IC45 Suction temperature 99 9 to 999 9 453 1010001110 IC46 Suction temperature 99 9 to 999 9 454 0110001110 IC47 Suction temperature 99 9 to 999 9 455 1110001110 IC48 Suction temperature 99 9 to 999 9 456 0001001110 IC49 Suction temperature 99 9 to 999 9 457 1001001110 IC50...

Page 342: ...ture 99 9 to 999 9 478 0111101110 IC21 Liquid pipe temperature 99 9 to 999 9 479 1111101110 IC22 Liquid pipe temperature 99 9 to 999 9 480 0000011110 IC23 Liquid pipe temperature 99 9 to 999 9 481 1000011110 IC24 Liquid pipe temperature 99 9 to 999 9 482 0100011110 IC25 Liquid pipe temperature 99 9 to 999 9 483 1100011110 IC26 Liquid pipe temperature 99 9 to 999 9 484 0010011110 IC27 Liquid pipe t...

Page 343: ...1110 IC43 Liquid pipe temperature 99 9 to 999 9 501 1010111110 IC44 Liquid pipe temperature 99 9 to 999 9 502 0110111110 IC45 Liquid pipe temperature 99 9 to 999 9 503 1110111110 IC46 Liquid pipe temperature 99 9 to 999 9 504 0001111110 IC47 Liquid pipe temperature 99 9 to 999 9 505 1001111110 IC48 Liquid pipe temperature 99 9 to 999 9 506 0101111110 IC49 Liquid pipe temperature 99 9 to 999 9 507 ...

Page 344: ...ress Count up display of number of connected units B 515 1100000001 BC BS TU address Count up display of number of connected units B 516 0010000001 OS address Count up display of number of connected units B 517 1010000001 Version Capacity S W version Refrigerant type Model and capacity Communication address A A 518 0110000001 OC address OC address display B 519 1110000001 520 0001000001 521 100100...

Page 345: ...0100001 IC12 Gas pipe temperature 99 9 to 999 9 535 1110100001 IC13 Gas pipe temperature 99 9 to 999 9 536 0001100001 IC14 Gas pipe temperature 99 9 to 999 9 537 1001100001 IC15 Gas pipe temperature 99 9 to 999 9 538 0101100001 IC16 Gas pipe temperature 99 9 to 999 9 539 1101100001 IC17 Gas pipe temperature 99 9 to 999 9 540 0011100001 IC18 Gas pipe temperature 99 9 to 999 9 541 1011100001 IC19 Ga...

Page 346: ...9 1111010001 IC37 Gas pipe temperature 99 9 to 999 9 560 0000110001 IC38 Gas pipe temperature 99 9 to 999 9 561 1000110001 IC39 Gas pipe temperature 99 9 to 999 9 562 0100110001 IC40 Gas pipe temperature 99 9 to 999 9 563 1100110001 IC41 Gas pipe temperature 99 9 to 999 9 564 0010110001 IC42 Gas pipe temperature 99 9 to 999 9 565 1010110001 IC43 Gas pipe temperature 99 9 to 999 9 566 0110110001 IC...

Page 347: ...99 9 583 1110001001 IC11SH 99 9 to 999 9 584 0001001001 IC12SH 99 9 to 999 9 585 1001001001 IC13SH 99 9 to 999 9 586 0101001001 IC14SH 99 9 to 999 9 587 1101001001 IC15SH 99 9 to 999 9 588 0011001001 IC16SH 99 9 to 999 9 589 1011001001 IC17SH 99 9 to 999 9 590 0111001001 IC18SH 99 9 to 999 9 591 1111001001 IC19SH 99 9 to 999 9 592 0000101001 IC20SH 99 9 to 999 9 593 1000101001 IC21SH 99 9 to 999 9...

Page 348: ...9 611 1100011001 IC39SH 99 9 to 999 9 612 0010011001 IC40SH 99 9 to 999 9 613 1010011001 IC41SH 99 9 to 999 9 614 0110011001 IC42SH 99 9 to 999 9 615 1110011001 IC43SH 99 9 to 999 9 616 0001011001 IC44SH 99 9 to 999 9 617 1001011001 IC45SH 99 9 to 999 9 618 0101011001 IC46SH 99 9 to 999 9 619 1101011001 IC47SH 99 9 to 999 9 620 0011011001 IC48SH 99 9 to 999 9 621 1011011001 IC49SH 99 9 to 999 9 62...

Page 349: ...99 9 633 1001111001 IC11SC 99 9 to 999 9 634 0101111001 IC12SC 99 9 to 999 9 635 1101111001 IC13SC 99 9 to 999 9 636 0011111001 IC14SC 99 9 to 999 9 637 1011111001 IC15SC 99 9 to 999 9 638 0111111001 IC16SC 99 9 to 999 9 639 1111111001 IC17SC 99 9 to 999 9 640 0000000101 IC18SC 99 9 to 999 9 641 1000000101 IC19SC 99 9 to 999 9 642 0100000101 IC20SC 99 9 to 999 9 643 1100000101 IC21SC 99 9 to 999 9...

Page 350: ...C 99 9 to 999 9 662 0110100101 IC40SC 99 9 to 999 9 663 1110100101 IC41SC 99 9 to 999 9 664 0001100101 IC42SC 99 9 to 999 9 665 1001100101 IC43SC 99 9 to 999 9 666 0101100101 IC44SC 99 9 to 999 9 667 1101100101 IC45SC 99 9 to 999 9 668 0011100101 IC46SC 99 9 to 999 9 669 1011100101 IC47SC 99 9 to 999 9 670 0111100101 IC48SC 99 9 to 999 9 671 1111100101 IC49SC 99 9 to 999 9 672 0000010101 IC50SC 99...

Page 351: ...0101 INV board S W version 0 00 to 99 99 A A 677 1010010101 678 0110010101 679 1110010101 Fan board S W version 0 00 to 99 99 A A 680 0001010101 681 1001010101 682 0101010101 683 1101010101 684 0011010101 685 1011010101 686 0111010101 687 1111010101 1 A The condition of either OC or OS is displayed individually B The condition of the entire refrigerant system is displayed ...

Page 352: ...01 Time of error detection 3 2 00 00 to 99 12 1 to 31 Year and month and date alternate display 696 0001110101 Time of error detection 4 00 00 to 23 59 Hour minute 697 1001110101 Time of error detection 4 2 00 00 to 99 12 1 to 31 Year and month and date alternate display 698 0101110101 Time of error detection 5 00 00 to 23 59 Hour minute 699 1101110101 Time of error detection 5 2 00 00 to 99 12 1 ...

Page 353: ... detection 9 2 00 00 to 99 12 1 to 31 Year and month and date alternate display 708 0010001101 Time of error detection 10 00 00 to 23 59 Hour minute 709 1010001101 Time of error detection 10 2 00 00 to 99 12 1 to 31 Year and month and date alternate display 710 0110001101 Time of last data backup be fore error 00 00 to 23 59 Hour minute 711 1110001101 Time of last data backup be fore error 2 00 00...

Page 354: ...ening 0000 to 9999 725 1010101101 IC12 LEV opening 0000 to 9999 726 0110101101 IC13 LEV opening 0000 to 9999 727 1110101101 IC14 LEV opening 0000 to 9999 728 0001101101 IC15 LEV opening 0000 to 9999 729 1001101101 IC16 LEV opening 0000 to 9999 730 0101101101 IC17 LEV opening 0000 to 9999 731 1101101101 IC18 LEV opening 0000 to 9999 732 0011101101 IC19 LEV opening 0000 to 9999 733 1011101101 IC20 L...

Page 355: ...IC43 LEV opening 0000 to 9999 757 1010111101 IC44 LEV opening 0000 to 9999 758 0110111101 IC45 LEV opening 0000 to 9999 759 1110111101 IC46 LEV opening 0000 to 9999 760 0001111101 IC47 LEV opening 0000 to 9999 761 1001111101 IC48 LEV opening 0000 to 9999 762 0101111101 IC49 LEV opening 0000 to 9999 763 1101111101 IC50 LEV opening 0000 to 9999 764 0011111101 IC1 Operation mode 0000 Stop 0001 Ventil...

Page 356: ...Operation mode 780 0011000011 IC17 Operation mode 781 1011000011 IC18 Operation mode 782 0111000011 IC19 Operation mode 783 1111000011 IC20 Operation mode 784 0000100011 IC21 Operation mode 785 1000100011 IC22 Operation mode 786 0100100011 IC23 Operation mode 787 1100100011 IC24 Operation mode 788 0010100011 IC25 Operation mode 789 1010100011 IC26 Operation mode 790 0110100011 IC27 Operation mode ...

Page 357: ...ration mode 809 1001010011 IC46 Operation mode 810 0101010011 IC47 Operation mode 811 1101010011 IC48 Operation mode 812 0011010011 IC49 Operation mode 813 1011010011 IC50 Operation mode 814 0111010011 IC1 filter 0000 to 9999 B Hours since last mainte nance h 815 1111010011 IC2 filter 0000 to 9999 816 0000110011 IC3 filter 0000 to 9999 817 1000110011 IC4 filter 0000 to 9999 818 0100110011 IC5 filt...

Page 358: ...011 IC25 filter 0000 to 9999 839 1110001011 IC26 filter 0000 to 9999 840 0001001011 IC27 filter 0000 to 9999 841 1001001011 IC28 filter 0000 to 9999 842 0101001011 IC29 filter 0000 to 9999 843 1101001011 IC30 filter 0000 to 9999 844 0011001011 IC31 filter 0000 to 9999 845 1011001011 IC32 filter 0000 to 9999 846 0111001001 IC33 filter 0000 to 9999 847 1111001011 IC34 filter 0000 to 9999 848 0000101...

Page 359: ... to 9999 858 0101101011 IC45 filter 0000 to 9999 859 1101101011 IC46 filter 0000 to 9999 860 0011101011 IC47 filter 0000 to 9999 861 1011101011 IC48 filter 0000 to 9999 862 0111101011 IC49 filter 0000 to 9999 863 1111101011 IC50 filter 0000 to 9999 Data on indoor unit system No SW1 Item Display Unit A B 1 Remarks 1234567890 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 OC OS 1 A The condition of either OC or OS...

Page 360: ...ent effec tive value 1 99 9 to 999 9 A A 873 1001011011 Power factor phase an gle 1 99 9 to 999 9 A A The unit is deg 874 0101011011 875 1101011011 876 0011011011 877 1011011011 878 0111011011 879 1111011011 880 0000111011 Control board Reset counter 0 to 254 A A The unit is time 881 1000111011 INV board Reset counter 0 to 254 A A 882 0100111011 883 1100111011 884 0010111011 Fan board Reset counte...

Page 361: ...00111 899 1100000111 900 0010000111 901 1010000111 902 0110000111 903 1110000111 904 0001000111 905 1001000111 906 0101000111 907 1101000111 1020 0011111111 1021 1011111111 1022 0111111111 1023 1111111111 Other types of data No SW1 Item Display Unit A B 1 Remarks 1234567890 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 OC OS 1 A The condition of either OC or OS is displayed individually B The condition of the e...

Page 362: ...Issued in Jul 2009 HWE0713A Printed in Japan New publication effective Jul 2009 Specifications subject to change without notice ...

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