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Mitsubishi Electric PURY-P120TJMU-A, Service Handbook, Page: 213 / 411

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Mitsubishi Electric PURY-P120TJMU-A Service Handbook Download Page 213

[ 

IX 

 Troubleshooting ]

- 204 -

HWE0913A

GB

1. Error 

Code

High pressure fault 2 (Outdoor unit)

2.  Error definition and error detection method

If the pressure of 0.098MPa [14psi] or lower is registered on the pressure sensor immediately before start-up, it will trigger an 
abnormal stop, and error code "1302" will be displayed.

3.  Cause, check method and remedy

1. Error 

Code

Refrigerant overcharge

2.  Error definition and error detection method

An error can be detected by the discharge temperature superheat.

1)   If the formula "TdSH 

 10°C [18°F]" is satisfied during operation (first detection), the outdoor unit stops, goes into the 3-minute 

restart mode, and starts up in three minutes.

2)   If the formula "TdSH 

 10°C [18°F]" is satisfied again within 30 minutes of the first stoppage of the outdoor unit (second de-

tection), the unit comes to an abnormal stop, and the error code "1500" appears.

3)   If the formula "TdSH 

 10°C [18°F]" is satisfied 30 minutes 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 sensor.(page 288)

(2)

Pressure sensor failure

(3)

Shorted-circuited pressure sensor cable due to torn 
outer rubber

(4)

A pin on the male connector on the pressure sensor 
is missing or contact failure

(5)

Disconnected pressure sensor cable

(6)

Failure of the pressure sensor input circuit on the 
controller board

1500

Cause

Check method and remedy

(1)

Overcharged refrigerant

Refer to the page on refrigerant amount 
evaluation.(page 171)

(2)

Thermistor input circuit failure on the control board

Check the temperature and pressure readings on the sen-
sor that are displayed on the LED monitor. 

(3)

Faulty mounting of thermistor (TH4)

Check the temperature and pressure readings on the 
thermistor that are displayed on the LED monitor.

Summary of Contents for PURY-P120TJMU-A

Page 1: ......

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: ...ller Circuit Board 84 IV Remote Controller 1 Functions and Specifications of MA and ME Remote Controllers 89 2 Group Settings and Interlock Settings via the ME Remote Controller 90 3 Interlock Settings via the MA Remote Controller 94 4 Using the built in Temperature Sensor on the Remote Controller 95 V Electrical Wiring Diagram 1 Electrical Wiring Diagram of the Outdoor Unit 99 2 Electrical Wiring...

Page 9: ...TS HWE0913A GB 7 Servicing the BC controller 350 8 Troubleshooting Using the Outdoor Unit LED Error Display 353 X LED Monitor Display on the Outdoor Unit Board 1 How to Read the LED on the Service Monitor 357 ...

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: ...use 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 ...

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: ...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 hands 1 2H material ...

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: ...een copper 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 ref...

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 26 5 An Example of a System to which an MA Remote Controller is connected 28 6 An Example of a System to which an ME Remote Controller is connected 42 7 An Example of a System to which both MA Remote Controller and ME Remote Controller are connected 44 8 Restrictions on Pipe Length 47 ...

Page 25: ... 16 ...

Page 26: ... 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 of connectable indoor units Maximumnumber of connectable in door units Type...

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: ...gerant 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 Cable type Type VCTF VCTFK CVV CVS VVR VVF VCT Shielded cable MVVS Number of cores 2 cor...

Page 29: ...oor 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 formula i ii iii is true 00 M NET adapter M NET con trol interface Free Plan adapter LOSSNAY OA processing unit LC 0 01 to 50 1 4 6 Assign an arbitrary but unique address to each of...

Page 30: ...y but unique address within the range listed on the left to each unit 202 Central controller AG 150A G B 50A GB 24A TR SC 000 201 to 250 Assign an arbitrary but unique address within the range listed on the left to each unit The address must be set to 000 to control the K control unit 000 Expansion controller PAC YG50ECA TR 000 201 to 250 Assign an arbitrary but unique address within the range lis...

Page 31: ...door unit 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 c...

Page 32: ...ion Operation of the indoor unit when the operation is resumed after the unit was stopped 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 ...

Page 33: ...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 34: ...ination 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 combination with the low ...

Page 35: ... 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 36: ... II Restrictions 27 HWE0913A GB ...

Page 37: ...e than 2 LOSSNAY units to indoor units in the same system refer to 5 2 An example of a sys tem 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 MA ...

Page 38: ...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 39: ... length 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 ...

Page 40: ...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 41: ...wo 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 L11 L31 L22 L21 500m 1640ft IC TB5 S TB15...

Page 42: ...ignated 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 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 ...

Page 43: ... 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 1640ft L32 L22 L21 500m 1640ft L12...

Page 44: ...ntroller 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 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 Pro...

Page 45: ...osters 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 65...

Page 46: ... outdoor transmission line TB5 on LOSSNAY LC Non po larized two wire Indoor units must be interlocked with the LOSSNAY unit using the system controller Refer to the operation manual for the system controller for the setting method 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 Ad...

Page 47: ...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 54 OS1 TB3 TB7 S 55 SW2 1 OFF O...

Page 48: ... control board from CN41 to CN40 on only one of the outdoor units When connecting a system controller set the centralized control switch SW2 1 on the control board of all indoor units to ON b If TB7 s on the outdoor units in the same refrigerant cir cuit are not daisy chained connect the transmission line for the central control system to TB7 of the OC Note a To maintain the central control even d...

Page 49: ... to 50 Assign an arbitrary but unique address to each of these units after assigning an address to all indoor units None of these addresses may overlap any of the indoor unit ad dresses 00 3 MA remote control ler Main re mote controller MA No set tings re quired Make the same indoor unit group settings with the system controller as the ones that were made with the MA remote controller Mai n Sub re...

Page 50: ... II Restrictions 41 41 HWE0913A GB ...

Page 51: ... 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 meet the following cable size ...

Page 52: ...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 53: ...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 as 5 4 3 MA remote controller wi...

Page 54: ...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 55: ...ssign an address 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 Addresse...

Page 56: ...n connecting the outdoor units of P144 model or above Branch joint CMY Y102S G2 Indoor Indoor Indoor Indoor P06 P54 models P72 P96 models Maximum of 3 units per port Total capacity of P54 or below Unit m ft Operation 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 ...

Page 57: ...ht difference and the pipe length between BC controller and indoor units Restrictions on pipe length PURY P72 P96TJMU A PURY P72 P96YJMU 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...

Page 58: ...ns in the figure titled Restrictions on pipe length below Except the P96 models Height differ ence Between indoor and outdoor units Outdoor unit above in door 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 P72 or above use the figures in the parentheses as a r...

Page 59: ...riate settings These indoor units can only be operated in the same mode 7 The maximum capacity of the indoor units that is connectable to the CMB P NU GB types of sub BC controllers is P126 or below when two GB type controllers are connected P126 or below for both combined The maximum total capacity of indoor units that is connectable to the sub BC controller CMB P1016NU HB is P126 or below If at ...

Page 60: ...controller h1 15 49 10 32 or less 2 2 When the capacity of the connected indoor units is P72 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 h3 15 49 or less Between outdoor units h4 0 1 0 3 or less h1 h3 h1 h2 f D E e Branch joint CMY R100VBK The distributor on the low pressure...

Page 61: ...t is connected the maximum total capacity of connectable indoor units to a system with two sub controllers is P168 or below 0 10 20 30 40 50 60 70 0 5 10 15 PURY P168TSJMU A PURY P168YSJMU A PURY P192TSJMU A PURY P192YSJMU A PURY P264 P288TSJMU A PURY P264 P288YSJMU A 10 20 30 40 50 60 70 80 90 100 110 32 64 98 131 164 196 229 262 295 328 360 1000 900 800 700 600 500 400 300 200 3280 2952 2624 229...

Page 62: ... pipe High pressure pipe 72 ø19 05 3 4 ø15 88 5 8 ø19 05 3 4 ø15 88 5 8 96 ø22 2 7 8 ø19 05 3 4 ø22 2 7 8 ø19 05 3 4 120 ø28 58 1 1 8 ø28 58 1 1 8 144 ø22 2 7 8 ø22 2 7 8 168 192 216 ø28 58 1 1 8 ø28 58 1 1 8 240 ø34 93 1 3 8 264 ø34 93 1 3 8 288 Unit mm inch Indoor unit Refrigerant pipe size Indoor unit connection Flare connection for all models Liquid pipe Gas pipe Liquid pipe Gas pipe P06 P08 P...

Page 63: ...RY P120YJMU 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 P54 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 ...

Page 64: ...essory Refrigerant pipe selection size of the pipes A and B in the previous page 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 Total capacity of indoor units Liquid pipe Gas pipe P54 or below ø9 52 3 8 ø15 88 5 8 P55 P72 ø9 52 3 8 ø19 05 3 4 P73 P96 ø9 52 3 8 ø22 2 7 8 Liquid pipe side 6 35 1 4 ID Gas pipe ...

Page 65: ...uid pipe Gas pipe P54 or below ø9 52 3 8 ø15 88 5 8 P55 P72 ø9 52 3 8 ø19 05 3 4 P73 P96 ø9 52 3 8 ø22 2 7 8 Unit mm inch Operation Pipe sections High pressure side Liquid Low pressure side Gas Outdoor unit side PURY P72TJMU A PURY P72YJMU A ø15 88 5 8 Brazed connection ø19 05 3 4 Brazed connection PURY P96TJMU A PURY P96YJMU A ø19 05 3 4 Brazed connection ø22 2 7 8 Brazed connection PURY P120TJMU...

Page 66: ... indoor units using the table below as a reference Unit mm inch Total capacity of indoor units Liquid pipe Gas pipe P54 or below ø9 52 3 8 ø15 88 5 8 P55 P72 ø9 52 3 8 ø19 05 3 4 P73 P96 ø9 52 3 8 ø22 2 7 8 Unit mm inch Operation Pipe sections High pressure side liquid Low pressure side gas Liquid pipe side Total capacity of the in door units that are con nected to the BC controller On the BC cont...

Page 67: ... 58 II Restrictions GB HWE0913A ...

Page 68: ... Components 1 Outdoor Unit Components and Refrigerant Circuit 61 2 Control Box of the Outdoor Unit 66 3 Outdoor Unit Circuit Board 70 4 BC Controller Components 80 5 Control Box of the BC Controller 83 6 BC Controller Circuit Board 84 ...

Page 69: ... 60 ...

Page 70: ...s 61 HWE0913A GB III Outdoor Unit Components 1 Outdoor Unit Components and Refrigerant Circuit 1 Front view of a outdoor unit 1 PURY P72 P96TJMU A PURY P72 P96YJMU A Fan Control Box Fan guard Fin guard Front panel Heat exchanger ...

Page 71: ...ents 62 HWE0913A GB 2 PURY P120 P144TJMU A PURY P120 P144YJMU A Contactor box Contactor box Transformer box YJMU A only Transformer box YJMU A only Fan Control Box Fan guard Fin guard Front panel Heat exchanger Heat exchanger ...

Page 72: ...arator O S High pressure 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 va...

Page 73: ... valve block assembly CV2a Solenoid valve SV5b Check valve CV4a Check valve CV8a Check valve CV9a Check valve CV10a Check valve CV3a Check valve CV6a Solenoid valve block SV4a SV4b SV4c SV4d Check valve CV5a Solenoid valve SV9 4 way valve 21S4a Check valve CV7a High pressure sensor 63HS1 Transformer box YJMU A only Low pressure sensor 63LS Solenoid valve SV2 Solenoid valve SV1a Accumulator ACC Com...

Page 74: ...e CV8a Check valve CV9a Check valve CV3a Check valve CV2b Check valve CV4b Check valve CV6b Check valve CV6a Solenoid valve block SV4a SV4b SV4d Check valve CV5a Solenoid valve SV9 4 way valve 21S4a 4 way valve 21S4b Check valve CV7a High pressure sensor 63HS1 Low pressure sensor 63LS Solenoid valve SV1a Accumulator Compressor cover Compressor Oil separator High pressure check joint Low pressure c...

Page 75: ... 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 Check that the voltage across terminals FT P and FT N YJMU on the INV board or the voltage at both ends of the main capacitor C1 TJMU is 20VDC or below It takes about 10 minut...

Page 76: ...omponents 2 Faston terminals have a locking function Make sure the cable heads are securely locked in place Press the tab on the ter minals to remove them Current sensor ACCT3 Note 2 Fan board INV board Control board DC reactor DCL Diode stack Noise filter Current sensor DCCT1 Terminal block for power supply TB1 Ground terminal Smoothing capacitor C1 Note 1 Current sensor ACCT2 Current sensor ACCT...

Page 77: ... in damage to its internal components 2 Faston terminals have a locking function Make sure the cable heads are securely locked in place Press the tab on the ter minals to remove them INV board Terminal block for power supply TB1 Noise filter DC reactor DCL Electromagnetic relay 72C Capacitor C100 Rush current protection resistor R1 R5 Note 2 Fan board Control board M NET board Terminal block for t...

Page 78: ... III Outdoor Unit Components 69 HWE0913A GB 4 Transformer Box PURY P72 P96 P120 P144YJMU A Transformer T03 Transformer T02 ...

Page 79: ...tput 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 External signal input contact in...

Page 80: ...put 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 YJMU only Bus voltage output TJMU only P N ...

Page 81: ...put 5VDC LED1 Lit Inverter in normal operation Blink Inverter error CN4 GND Fan Board Serial communication signal output CNDC Bus voltage output P N CN2 Serial communication signal output GND Input 17VDC SC V Inverter output V SC W Inverter output W CT22 Current sensor W SC U Inverter output U CT12 Current sensor U SC R Input L1 SC S Input L2 SC T Input L3 CT3 Current sensor L3 TB N Note Bus volta...

Page 82: ...ial communication signal output GND 17 VDC input CN4 GND FAN INV board Serial communication signal input LED3 Charging CNFG Functional earth F02 Fuse AC250V 3 15A CNDC3 Bus voltage output P N P N CNDC2 Bus voltage input CNDC1 Bus voltage output SC P1 Bus voltage input output P IPM P Bus voltage output P IPM input IPM N Bus voltage input output N IPM input FT N Note Bus voltage output N CNCT DC sen...

Page 83: ...voltage check 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 5VDC output RSH1 Overcurrent detection resistor CN4 GND Fan Board Serial communication signal output CN2 Serial communication signal output GND...

Page 84: ...ation signal output GND Control board Serial communication signal output CN22 GND INV board Input 5VDC Serial communication signal input GND INV board Input 17VDC CN21 Serial communication signal output GND INV board Input 17VDC THBOX Thermistor Control box internal temperature detection LED1 Inverter in normal operation LED2 Inverter error DIP IPM Rear CNINV Inverter output W V U R630 Overcurrent...

Page 85: ...ommunication 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 ...

Page 86: ... Unit Components 77 HWE0913A GB 5 Noise Filter 1 PURY P72TJMU A Grounding TB21 Input output L1 CN02 Output L1 L2 TB22 Input output L2 TB23 Input output L3 CN01 Input L3 L2 L1 F1 Fuse 250VAC 6 3A F2 Fuse 250VAC 6 3A ...

Page 87: ... protection resistor TB42 Bus voltage output N TB31 Bus voltage output P CN03 72C drive input Electromagnetic relay 72C Diode stack rectified voltage input Diode stack output Output Diode stack input TB23 Input L3 TB22 Input L2 TB21 Input L1 CN01 Input L3 L2 L1 F2 Fuse 250VAC 6 3A F1 Fuse 250VAC 6 3A CN02 Output L1 L2 ...

Page 88: ...d L2 L3 current P N CN5 Output Rectified L2 L3 current P N TB21 Input output L1 TB22 Input output L2 TB23 Input output L3 CN1B Input L3 L2 CN1A Input L1 Grounding F1 F2 F3 F4 Fuse 250VAC 6 3A CN6 Input L2 L3 Grounding CN2 Surge absorber circuit Surge absorber circuit Short circuit Short circuit ...

Page 89: ... HWE0913A GB 4 BC Controller Components 1 CMB P NU 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 90: ...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 91: ... III Outdoor Unit Components 82 HWE0913A GB 2 CMB P NU GB HB 1 Front 2 Rear view Liquid pipe Indoor unit side Gas pipe Indoor unit side TH15 TH12 LEV3 ...

Page 92: ...utdoor Unit Components 83 HWE0913A GB 5 Control Box of the BC Controller 1 CMB P1016NU G GA HA Relay board Transformer Terminal block for transmission line BC controller board Terminal block for power supply ...

Page 93: ... III Outdoor Unit Components 84 HWE0913A GB 6 BC Controller Circuit Board 1 BC controller circuit board BC board SW1 SW2 SW5 SW6 SW4 ...

Page 94: ... III Outdoor Unit Components 85 HWE0913A GB 2 RELAY BOARD RELAY 4 board 3 RELAY BOARD RELAY 10 board ...

Page 95: ... 86 III Outdoor Unit Components GB HWE0913A ...

Page 96: ...s and Specifications of MA and ME Remote Controllers 89 2 Group Settings and Interlock Settings via the ME Remote Controller 90 3 Interlock Settings via the MA Remote Controller 94 4 Using the built in Temperature Sensor on the Remote Controller 95 ...

Page 97: ... 88 ...

Page 98: ...on 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 locked with a ventilation unit Set up via re...

Page 99: ...age will appear on the display Check the address and try again 5 Successful completion 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 Next page To searc...

Page 100: ...f the LOSSNAY 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 searc...

Page 101: ...s necessary 3 Narrowed preset temperature range mode The default temperature ranges are 67 F to 87 F in the cooling dry mode and 63 F to 83 F in the heating mode By changing these ranges raising the lower limit for the cooling dry mode and lowering the upper limit for the heating mode energy can be saved The settable range varies depending on the unit to be connected On the PAR F27MEA US model aut...

Page 102: ...y the lower limit temperature is changeable HEAT and LIMIT TEMP will light up and the temperature range for the heating mode will appear on the screen The upper limit temperature can be changed with button TIMER SET or Selection range for the upper limit temperature 63 F 83 F Medium temperature range indoor unit 63 F 83 F The lower limit temperature is fixed at 63 F Only the upper limit temperatur...

Page 103: ...to register the address of the selected indoor unit and the interlocked 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 d...

Page 104: ...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 105: ... 96 IV Remote Controller GB HWE0913A ...

Page 106: ...97 HWE0913A GB V Electrical Wiring Diagram 1 Electrical Wiring Diagram of the Outdoor Unit 99 2 Electrical Wiring Diagram of the BC Controller 104 3 Electrical Wiring Diagram of Transmission Booster 114 ...

Page 107: ... 98 ...

Page 108: ...ing the bypass circuit Liquid pipe temperature TH3 Thermistor Discharge pipe temperature TB3 M1 M2 M1 M2 S TB7 1 2 3 6 t 4 5 1 2 1 2 3 4 t ACC inlet pipe temperature OA temperature t 2 FAN Board LED1 Unit address setting t LED1 Power supply to Indoor Outdoor transmission line CN102 CNS2 yellow SWU2 10 s digit SWU1 1 s digit 10 1 10 1 10 1 10 1 SW4 SW3 SW2 SW1 ON IGBT temperature Function setting c...

Page 109: ...CN332 blue 2 1 1 1 3 1 1 2 4 3 2 4 2 1 R630 2 1 CNVDC 2 Power selecting connector Fan motor Heat exchanger 1 3 1 TB31 Current sensor DC 1 6 5 4 3 R01 2 2 CNCT2 blue 4 Motor Compressor C1 DCCT1 ACCT2 FT N Z1 TB21 TB22 L F2 AC250V 6 3A T 1 F1 AC250V 6 3A T 5 black white red 3 CN01 L3 L3 L2 L2 L1 TB1 W CNAC2 black DCCT1 1 Single dotted lines indicate wiring not supplied with the unit 2 Dot dash lines...

Page 110: ...M NET Board 4 3 2 SV5b SV5c 21S4b 3 3 CN501 1 4 CNINV 2 1 CNTYP5 green 2 4 CN4 3 2 3 Error detection output 1 1 CN201 63LS t 3 1 CN4 LED2 Error TH6 CN41 CN21 blue t THHS Z26 4 black 3 1 2 1 SWU1 2 1 CNTH green 3 7 5 2 1 white U 1 red 1 s digit CX2 3 Compressor ON OFF output SW5 Control Board 2 3 3 4 1 CNAC red 1 7 5 2 63H1 CN801 yellow 3 2 LED1 Display setting 3 Function setting CN51 12V 10 1 TH7 ...

Page 111: ...ck CN502 5 Indoor Outdoor transmission cable INV Board red 3 CNT01 TB23 L2 L1 U 4 1 ON 1 2 1 s digit THHS 1 CNIT red S 2 1 1 CN990 1 3 W TB3 10 s digit OFF LED2 CPU in operation 5 2 CNS2 yellow TB7 1 CNDC pink M1 2 2 red 6 MS 3 1 1 t C100 5 3 3 U 1 4 LED1 Power supply to Indoor Outdoor transmission line SV4d ZNR01 M2 3 2 M1 black Central control transmission cable 6 SC L1 1 4 C2 C9 ON C5 OFF FT N ...

Page 112: ...ck 72C white red 3 3 2 1 ON OFF 1 2 M NET power supply circuit 1 2 3 C6 M NET Board 1 2 1 Power failure detection circuit 1 CNAC2 black CN502 5 Indoor Outdoor transmission cable INV Board red 3 CNT01 TB23 L2 L1 4 1 ON 1 2 1 s digit THHS 1 CNIT red S 2 1 1 CN990 1 3 W TB3 10 s digit OFF LED2 CPU in operation 5 2 CNS2 yellow TB7 1 CNDC pink M1 2 2 red 6 MS 3 1 1 t C100 5 3 3 U 1 4 LED1 Power supply ...

Page 113: ... 6 5 4 3 2 1 1 2 CNP3 3 2 1 CNP1 3 CN02 2 1 CONT B 1 2 3 4 5 6 CN05 3 5 1 CN12 1 3 CN26 TB02 TR SVM1 Solenoid valve Fuse AC250V 6 3A F F01 Terminal T1 4 Terminal block for Transmission TB02 Terminal block for power source TB01 Solenoid valve SV1 4A B C Expansion valve Thermistor sensor Transformer Name Symbol TR TH11 12 15 16 LEV1 3 PS1 3 Pressure sensor CONT B Note 1 TB02 is transmission terminal...

Page 114: ...4 3 2 1 SV6C SV6A SV6B 1 2 3 4 1 2 3 4 1 2 3 4 1 5 3 1 7 5 3 1 7 5 3 1 X8 X7 X33 X10 X9 X34 X12 X11 X35 CN30 Black CN31 Yellow Solenoid valve SVM1 CONT B Pressure sensor TR TH11 12 15 16 LEV1 3 PS1 3 Symbol Name Transformer Thermistor sensor Expansion valve SV1 6A B C Solenoid valve TB01 Terminal block for power source TB02 Terminal block for Transmission T1 6 Terminal F01 Fuse AC250V 6 3A F Note ...

Page 115: ... 1 4 3 2 1 4 3 2 1 X30 X1 X2 1 3 5 4 3 2 1 SV1B SV1A SV1C 1 2 3 4 3 2 4 1 3 2 4 1 X35 X11 X12 X34 X9 X10 X33 X7 X8 X32 X5 X6 X31 X3 X4 7 1 3 5 7 1 3 5 7 1 3 5 7 1 3 5 7 1 3 5 7 1 1 1 4 3 2 4 3 2 4 3 2 1 4 3 2 SV2C SV2A SV2B SV3C SV3A SV3B SV4C SV4A SV4B SV5B SV5A SV5C 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 11 12 13 8 9 10 5 6 7 14 15 16 8 9 10 11 12 13 5 6 7 14 15 16 1 2 1 2 3 3 4 3 2 1 4 3 2 1 SV6C SV6A...

Page 116: ...4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 7 5 3 1 3 3 X14 X13 X36 X37 X15 X16 X38 X39 X17 X19 X18 X20 7 5 3 1 7 5 3 1 7 5 3 1 CN40 SVM1 2 3 2 1 3 1 REL B 4 5 6 8 9 7 10 12 11 13 15 14 16 3 4 2 1 SV11B SV11A SV11C 1 3 2 8 9 10 11 12 13 3 2 4 1 5 6 7 14 15 16 4 3 2 1 SV12C SV12A SV12B SV13C SV13A SV13B SV14C SV14A SV14B SV15B SV15A SV15C 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 4 3 2 ...

Page 117: ...V6C 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 4 1 1 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 X4 X3 X31 X6 X5 X32 X8 X7 X33 X10 X9 X34 X12 X11 X35 1 4 2 3 1 4 2 3 4 3 2 1 SV1C SV1A SV1B 1 2 3 4 5 3 1 X2 X1 X30 X60 X21 CN46 Yellow 3 1 ...

Page 118: ... 3 1 7 5 3 1 7 5 3 1 1 CN36 Green X21 CN45 Green CN44 Yellow CN43 Red REL B 4 5 6 8 9 7 10 12 11 13 15 14 16 3 4 2 1 SV11B SV11A SV11C 1 3 2 8 9 10 11 12 13 3 2 4 1 5 6 7 14 15 16 4 3 2 1 SV12C SV12A SV12B SV13C SV13A SV13B SV14C SV14A SV14B SV15B SV15A SV15C 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 4 3 2 1 SV16B SV16A SV16C 1 2 3 4 1 3 4 3 4 2 1 X51 X55 X56 X52 X53 X57 X54 ...

Page 119: ...3 4 8 7 6 5 4 3 2 1 1 2 CN02 CONT B 3 5 1 CN12 1 3 CN26 TR Fuse AC250V 6 3A F F01 Terminal T1 4 Terminal block for Transmission TB02 Terminal block for power source TB01 Solenoid valve SV1 4A B C Expansion valve Thermistor sensor Transformer Name Symbol TR TH12 15 LEV3 CONT B Note 1 TB02 is transmission terminal block Never connect power line to it 2 The initial set values of switch on CONT B are ...

Page 120: ...9 10 5 6 7 14 15 16 8 9 10 11 12 13 5 6 7 14 15 16 1 2 1 2 3 3 4 3 2 1 4 3 2 1 SV6C SV6A SV6B 7 6 5 4 3 2 1 CN39 3 1 CN52 CONT B 6 5 4 3 2 1 LEV3 2 1 1 2 3 4 5 6 7 8 4 3 2 1 1 2 3 2 1 CN03 CN02 CN10 CN11 TH12 TH15 TR CN50 7 6 5 4 3 2 1 1 3 5 1 3 CN38 CN26 3 1 CNTR REL B F01 Fuse AC250V 6 3A F Terminal T1 8 CONT B Terminal block for Transmission TB02 Terminal block for power source TB01 Solenoid va...

Page 121: ...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 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 2 3 4 1 2 X54 CN45 Gree...

Page 122: ...10 15 14 13 1 2 3 4 4 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 8 7 6 5 4 3 2 1 4 CNOUT2 CNOUT4 1 2 3 4 4 3 2 1 4 3 2 1 1 2 3 4 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 TO NEXT INDOOR UNIT PULL BOX FUSE 15A BREAKER 15A POWER SUPPLY 208V 230V 3 3 2 1 2 1 1 1 5 6 7 8 9 10 11 12 13 14 15 16 3 2 4 8 9 10 11 12 13 3 2 4 5 6 7 14 15 16 S SHIELD TB02 Indoor outdoo...

Page 123: ...hite 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 TB2 Expanded outdoor unit side Termi...

Page 124: ... 115 HWE0913A GB VI Refrigerant Circuit 1 Refrigerant Circuit Diagram 117 2 Principal Parts and Functions 126 ...

Page 125: ... 116 ...

Page 126: ...3 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 127: ... P144 models 63HS1 O S TH4 CJ2 SV1a CP1 CJ1 21S4b 21S4a ST3 ST1 63LS CV8a CV6a TH7 TH3 SV4a SV4b SV4d ACC ST6 ST7 ST17 TH5 TH6 CV9a CV5a SV9 CP2 SV5b CV4a CV2a CV7a CV6b CV5b HEX1 63H1 SV4c BV1 BV2 SV5c CV3a CV7b CV2b CV4b COMP HEX2 Solenoid valve block ...

Page 128: ...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 129: ...0a 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 130: ...CP2 SV5b CV4a CV2a CV7a CV6b CV5b HEX1 63H1 SV4c BV1 BV2 SV5c CV3a CV7b CV2b CV4b COMP HEX2 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 63H1 BV1 BV2 SV5c COMP SV4b SV4c Solenoid valve block Solenoid valve block Low pressure side distrbutor High pressure side junction pipe ...

Page 131: ... CV4a CV2a CV7a CV6b CV5b HEX1 63H1 SV4c BV1 BV2 SV5c CV3a CV7b CV2b CV4b COMP HEX2 63HS1 O S TH4 CJ2 SV1a CP1 CJ1 21S4b 21S4a ST3 ST1 63LS CV8a CV6a TH7 TH3 SV4a SV4b SV4d ACC ST6 ST7 ST17 TH5 TH6 CV9a CV5a SV9 CP2 SV5b CV4a CV2a CV7a CV6b CV5b HEX1 63H1 SV4c BV1 BV2 SV5c CV3a CV7b CV2b CV4b COMP HEX2 Solenoid valve block Solenoid valve block Low pressure side distrbutor High pressure side juncti...

Page 132: ... VI Refrigerant Circuit 123 HWE0913A GB 2 BC controller 1 CMB P104 P1016NU G TH15 TH12 LEV3 LEV1 TH16 PS3 PS1 TH11 SVM1 Gas Liquid separator Check valve block Solenoid valve block ...

Page 133: ... GB 2 CMB P108 P1013 P1016NU GA main 3 CMB P104 P108NU 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 134: ...5 HWE0913A GB 4 CMB P1016V HA main 5 CMB P1016NU 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 135: ...witch 63H1 1 Detects high pressure 2 Provides high pressure pro tection 4 15MPa 601psi OFF setting Power supply trans former Trans former YJMU only Decreases the power supply volt age 460V supplied to the circuit board Primary rated voltage 460V 50 60Hz Secondary rated voltage 229V No load voltage Electro magnet ic contactor 52F P120 and P144 only Turns ON and OFF the output to the fan motor AC208...

Page 136: ... F 25kohm THBOX Control box in ternal tempera ture detection Solenoid valve SV1a Discharge suc tion bypass 1 High low pressure bypass at start up and stopping and capacity control during low load operation 2 High pressure rise preven tion AC208 230V Open while being powered closed while not being pow ered Continuity check with a tester SV2 The SV4c on the P120 and P144 models closes when energized...

Page 137: ...g and cooling AC208 230V Dead cooling cycle Live heating cycle Continuity check with a tester Fan mo tor FAN motor 1 2 FAN motor2 is only on the P120 and P144 mod els Regulates the heat exchanger ca pacity by adjusting the operating frequency and operating the pro peller fan based on the operating pressure TJMU AC180V 50 5Hz 920W YJMU AC414V 50 5Hz 920W Part name Symbols functions Notes Usage Spec...

Page 138: ... 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 139: ... re frigerant tempera ture LEV control Subcool Solenoid valve SVM1 Opens during cooling and de frost modes AC208 230V 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 140: ...rol Subcool Solenoid valve SVM1 Opens during cooling and de frost modes AC208 230V 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 141: ...et tempera ture LEV control Superheat Solenoid valve SV A Provides refrigerant to indoor unit in cooling operation AC208 230V 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 142: ...ing cooling and de frost modes AC208 230V 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 143: ...et tempera ture LEV control Superheat Solenoid valve SV A Provides refrigerant to indoor unit in cooling operation AC208 230V 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 144: ... 135 HWE0913A GB VII Control 1 Functions and Factory Settings of the Dipswitches 137 2 Controlling the Outdoor Unit 144 3 Controlling BC Controller 159 4 Operation Flow Chart 160 ...

Page 145: ... 136 ...

Page 146: ...on 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 error his tory SW OC Storage of IC OC error history OC De...

Page 147: ... temper ature Note 4 P72 10 C 50 F P72 15 C 59 F Anytime after power on except during defrost op eration B B P96 P120 P144 7 C 45 F P96 P120 P144 12 C 54 F 5 6 Temperature unit setting Centigrade Fahrenheit Anytime after power on C C 7 High heating power at low outside tem perature Ineffective Effective Anytime after power on A 8 9 Model setting High static pressure setting outdoor Outdoor standar...

Page 148: ... short circuit connector is mated with the mating connector 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 To be set at the factory 2 3 4 5 Low noise mode sel...

Page 149: ...ted and the unit may be damaged Switch Function Function according to switch setting Switch setting timing OFF ON OFF ON SW1 1 Enabling disabling the following error detection functions ACCT DCCT sensor failure 5301 Detail No 115 116 ACCT DCCT sensor circuit failure 5301 Detail No 117 118 IPM open Disconnected CNCT2 5301 Detail No 119 Detection of erroneous wiring 5301 Detail No 120 Error detec ti...

Page 150: ...unction Vane angle limit setting for cooling operation Initial vane position Heating 4 C 7 2 F up Automatic LEV value conversion function Indoor unit inlet 100h Disabled Fan output 2500h Enabled Thermo ON signal Built 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 Therm...

Page 151: ...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 152: ...n the same group Setting of rotary switch Address No 01 99 1 101 199 with the 100 s digit 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 10...

Page 153: ...eration Refer to 10 Control at Initial Start up for the initial 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...

Page 154: ... 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 Others Always OFF Operation SV2 ON...

Page 155: ...e 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 cycle ...

Page 156: ... cycle took 12 minutes All units in the heating mode will simultaneously go into the defrost cycle in a system with multiple units The units that are not in operation may or may not go into the defrost cycle depending on the cumulative operation time of their compressors Condition 1 Condition 2 Condition 3 Outside temperature TH7 5ºC 23ºF or above 5ºC 23ºF or below Cumulative compressor operation ...

Page 157: ...l be set to 20 minutes 5 Change in the number of operating indoor units during defrost operation Even when there is a change in the number of operating indoor units during defrost operation the operation will continue and an adjustment will be made after the completion of the defrost operation Defrost operation will be continued even if the indoor units stop or under the Thermo OFF conditions unti...

Page 158: ...ating only 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 t...

Page 159: ...oor units before the second fan goes into operation the capacity of the first fan is reduced to 50 3 Outdoor unit heat exchanger capacity control patterns SV4c turns on when energized on the P96 model and it turns on when de energized on the P120 and P144 models All other valves turn on when energized Model Operation mode Operation patterns Solenoid valve SV4a SV4b SV4c SV4d SV5c P72 model Cooling...

Page 160: ...e OC and OS they will go into the normal control mode 1 Flowchart of initial operation 1 P72 P96 P120 P144 models 50 F 60Hz or F 50Hz Initial startup mode starts Completed in the integrated operation time of 35 minutes Initial startup mode complete or the discharge superheat TH4 Tc is detected within 5 minutes of startup that remains above approximately 20 degrees for one minute Completed in the i...

Page 161: ...ted operation time of 90 minutes The compressor on the OS starts up 2 3 2 The air conditioning load is too small for both the OC and the OS to simultaneously stay in operation 3 The air conditioning load is high enough for both OC and OS to simultaneously stay in operation Initial startup mode complete or the discharge superheat TH4 Tc is detected within 5 minutes of startup that remains above app...

Page 162: ...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 another error r...

Page 163: ...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 164: ...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 165: ...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 166: ...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 167: ...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 23 ...

Page 168: ...rol 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 Su...

Page 169: ...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 170: ...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 171: ... 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 172: ...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 173: ...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 174: ... 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 175: ... 166 VII Control GB HWE0913A ...

Page 176: ... before a Test Run 169 2 Test Run Method 170 3 Operating Characteristic and Refrigerant Amount 171 4 Adjusting the Refrigerant Amount 171 5 Refrigerant Amount Adjust Mode 174 6 The following symptoms are normal 176 7 Standard Operation Data Reference Data 177 ...

Page 177: ... 168 ...

Page 178: ...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 179: ...on by pressing the Operation Mode button Press the Fan Speed button Change the air flow direction by pressing the Ventilation 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 O...

Page 180: ...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 181: ...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 ǩ1 ǩ2 ǩ3 ǩ4 ǩ1 ǩ3 ǩ4 Refer to the table below L1 Length of ø28 58 1 1 8 high pressure pipe ft L2 Leng...

Page 182: ...door unit1 30 model Indoor unit2 96 model Indoor unit3 12 model Indoor unit4 15 model Indoor unit5 12 model Indoor unit6 24 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 10m 5m 5m 10m 5m 5m 28 58 A 40m 131...

Page 183: ...t turn out to be inadequate later on when the refrigerant system stabilizes When the amount of refrigerant is truly adequate Subcool SC11 and SC16 of the BC controller 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 inadequate later on Subcool SC11 and SC16 of the BC controller is 5 C 9 F o...

Page 184: ...ure side Is the TH4 value of the OC and OS at or below 100 C 212 F Has the operating frequency of the compressor on the OC and OS become stable Does the following hold true TH4 95 C 203㩩F on the OC and OS Does the following hold true 15 C 27 F SC16 㧔on the BC㧕 Operation of the Refrigerant Amount Adjust Mode When the unit is the refrigerant amount adjust mode the LEV on the indoor unit does not ope...

Page 185: ...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 186: ...35 114 13 16 25 82 Fan speed Hi Hi Amount of refrigerant kg lbs oz 19 1 42 21 3 47 Outdoor unit Electric current A 15 7 21 7 Voltage V 230 230 Compressor frequency Hz 43 61 LEV open ing Indoor unit Pulse 180 200 220 387 387 BC controller 1 2 3 2000 180 2000 170 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 65 0 92 384 133 2 78 0 90 403 131 BC controller on the liquid side PS1 Intermedia...

Page 187: ...f refrigerant kg lbs oz 22 5 50 23 4 52 Outdoor unit Electric current A 27 8 34 6 Voltage V 230 230 Compressor frequency Hz 75 87 LEV open ing Indoor unit Pulse 230 230 230 230 275 275 275 275 BC controller 1 2 3 2000 210 2000 2000 250 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 82 0 94 409 136 2 87 0 96 416 139 BC controller on the liquid side PS1 Intermediate part PS3 2 73 2 72 395 ...

Page 188: ...peed Hi Hi Amount of refrigerant kg lbs oz 19 1 42 21 3 47 Outdoor unit Electric current A 17 1 24 1 Voltage V 230 230 Compressor frequency Hz 52 74 LEV open ing Indoor unit Pulse 205 203 200 406 406 BC controller 1 2 3 110 520 110 590 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 52 0 7 365 102 2 52 0 63 365 91 BC controller on the liquid side PS1 Intermediate part PS3 2 45 2 13 355 30...

Page 189: ...ount of refrigerant kg lbs oz 22 5 50 23 4 52 Outdoor unit Electric current A 30 7 36 8 Voltage V 230 230 Compressor frequency Hz 86 104 LEV open ing Indoor unit Pulse 295 295 295 295 350 350 350 350 BC controller 1 2 3 110 660 110 110 870 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 57 0 64 372 92 2 52 0 63 365 91 BC controller on the liquid side PS1 Intermediate part PS3 2 54 2 22 36...

Page 190: ...an speed Hi Amount of refrigerant kg lbs oz 38 5 85 Outdoor unit Electric current A 38 6 Voltage V 230 Compressor frequency Hz 61 43 LEV open ing Indoor unit Pulse 230 230 230 275 275 BC controller 1 2 3 2000 2000 260 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 78 0 91 403 131 2 65 0 91 384 131 BC controller on the liquid side PS1 Intermediate part PS3 2 65 2 65 384 384 Temp of each s...

Page 191: ...efrigerant kg lbs oz 42 4 93 Outdoor unit Electric current A 44 8 Voltage V 230 Compressor frequency Hz 61 61 LEV open ing Indoor unit Pulse 230 230 230 230 275 275 BC controller 1 2 3 2000 2000 270 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 78 0 90 403 131 2 78 0 90 403 131 BC controller on the liquid side PS1 Intermediate part PS3 2 70 2 70 392 392 Temp of each sec tion Outdoor uni...

Page 192: ...refrigerant kg lbs oz 43 0 95 Outdoor unit Electric current A 51 0 Voltage V 230 Compressor frequency Hz 75 61 LEV open ing Indoor unit Pulse 275 275 275 275 275 275 BC controller 1 2 3 2000 2000 280 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 82 0 92 409 133 2 78 0 92 403 133 BC controller on the liquid side PS1 Intermediate part PS3 2 73 2 72 395 394 Temp of each sec tion Outdoor un...

Page 193: ...rigerant kg lbs oz 44 6 98 Outdoor unit Electric current A 57 4 Voltage V 230 Compressor frequency Hz 75 75 LEV open ing Indoor unit Pulse 200 275 275 275 275 275 275 BC controller 1 2 3 2000 2000 290 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 82 0 94 409 136 2 82 0 94 409 136 BC controller on the liquid side PS1 Intermediate part PS3 2 73 2 73 395 395 Temp of each sec tion Outdoor u...

Page 194: ...rigerant kg lbs oz 44 6 98 Outdoor unit Electric current A 64 4 Voltage V 230 Compressor frequency Hz 87 75 LEV open ing Indoor unit Pulse 200 200 275 275 275 275 275 275 BC controller 1 2 3 2000 2000 290 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 87 0 95 416 138 2 82 0 95 409 138 BC controller on the liquid side PS1 Intermediate part PS3 2 75 2 75 399 399 Temp of each sec tion Outdo...

Page 195: ...igerant kg lbs oz 46 6 103 Outdoor unit Electric current A 71 4 Voltage V 230 Compressor frequency Hz 87 87 LEV open ing Indoor unit Pulse 275 275 275 275 275 275 275 275 BC controller 1 2 3 2000 2000 290 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 87 0 96 416 139 2 87 0 96 416 139 BC controller on the liquid side PS1 Intermediate part PS3 2 80 2 80 406 406 Temp of each sec tion Outdo...

Page 196: ...ed Hi Amount of refrigerant kg lbs oz 38 5 85 Outdoor unit Electric current A 42 5 Voltage V 230 Compressor frequency Hz 74 52 LEV open ing Indoor unit Pulse 295 295 350 350 350 BC controller 1 2 3 110 110 980 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 52 0 63 365 91 2 52 0 70 365 102 BC controller on the liquid side PS1 Intermediate part PS3 2 46 2 20 357 319 Temp of each sec tion O...

Page 197: ...of refrigerant kg lbs oz 42 4 93 Outdoor unit Electric current A 49 7 Voltage V 230 Compressor frequency Hz 74 74 LEV open ing Indoor unit Pulse 295 295 295 295 350 350 BC controller 1 2 3 110 110 1050 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 52 0 63 365 91 2 52 0 63 365 91 BC controller on the liquid side PS1 Intermediate part PS3 2 48 2 27 360 329 Temp of each sec tion Outdoor un...

Page 198: ... of refrigerant kg lbs oz 43 0 95 Outdoor unit Electric current A 56 7 Voltage V 230 Compressor frequency Hz 86 74 LEV open ing Indoor unit Pulse 350 350 350 350 350 350 BC controller 1 2 3 110 110 1120 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 54 0 64 368 92 2 54 0 63 368 91 BC controller on the liquid side PS1 Intermediate part PS3 2 50 2 17 363 315 Temp of each sec tion Outdoor u...

Page 199: ... of refrigerant kg lbs oz 44 6 98 Outdoor unit Electric current A 63 3 Voltage V 230 Compressor frequency Hz 86 86 LEV open ing Indoor unit Pulse 203 350 350 350 350 350 350 BC controller 1 2 3 110 110 1190 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 57 0 64 372 92 2 57 0 64 372 92 BC controller on the liquid side PS1 Intermediate part PS3 2 54 2 22 368 321 Temp of each sec tion Outdo...

Page 200: ...of refrigerant kg lbs oz 44 6 98 Outdoor unit Electric current A 69 5 Voltage V 230 Compressor frequency Hz 104 86 LEV open ing Indoor unit Pulse 203 203 350 350 350 350 350 350 BC controller 1 2 3 110 110 1190 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 55 0 63 370 91 2 55 0 64 370 92 BC controller on the liquid side PS1 Intermediate part PS3 2 52 2 20 365 319 Temp of each sec tion O...

Page 201: ...f refrigerant kg lbs oz 46 6 103 Outdoor unit Electric current A 75 8 Voltage V 230 Compressor frequency Hz 104 104 LEV open ing Indoor unit Pulse 350 350 350 350 350 350 350 350 BC controller 1 2 3 110 110 1190 Pressure High pressure 63HS1 Low pressure 63LS MPa psi 2 52 0 63 365 91 2 52 0 63 365 91 BC controller on the liquid side PS1 Intermediate part PS3 2 45 2 13 355 309 Temp of each sec tion ...

Page 202: ...play on the Remote Controller 199 3 Investigation of Transmission Wave Shape Noise 285 4 Troubleshooting Principal Parts 288 5 Refrigerant Leak 333 6 Compressor Replacement Instructions 335 7 Servicing the BC controller 350 8 Troubleshooting Using the Outdoor Unit LED Error Display 353 ...

Page 203: ... 194 ...

Page 204: ...ransmission power supply fault O 4109 Fan operation status detection error O 4115 Power supply signal sync error 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 IP...

Page 205: ...perature TH6 O 5107 1221 Temperature sensor fault Outside temperature TH7 O 5110 1214 01 Temperature sensor fault Heatsink temperature THHS 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 fa...

Page 206: ... O 6832 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 se...

Page 207: ... two digit detail codes indicate if the codes apply to inverter on fan inverter Example Code 4225 detail code 108 Bus voltage drop in the fan inverter system Code 4230 Heatsink overheat protection in the inverter system The last digit Inverter system 0 or 1 Compressor inverter system 5 Fan inverter system ...

Page 208: ...edy 1 Incorrect switch setting on the indoor unit cir cuit board Check SW3 3 on the indoor unit circuit board Set SW3 3 to ON only when connecting an auto filter cleaning unit 2 Power wire that connects the circuit board on the indoor unit and the circuit board on the cleaning unit is loose Check the LED1 cleaning unit circuit board microcomputer power Lit Power is supplied properly Unlit Check fo...

Page 209: ...tting on the indoor unit cir cuit board Check SW3 3 on the indoor unit circuit board Set SW3 3 to ON only when connecting an auto filter cleaning unit 2 Power wire that connects the circuit board on the indoor unit and the circuit board on the cleaning unit is loose Check the LED1 cleaning unit circuit board microcomputer power Lit Power is supplied properly Unlit Check for loose or disconnected p...

Page 210: ... leak gas shortage Refer to the page on refrigerant amount evaluation page 171 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 p...

Page 211: ...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 289 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 212: ...ntroller 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 P72 model 4a 4d P96 P120 P144 models Cooling only or cooling main 6 Port address setting error Confirm the port address of the indoor unit 7 Refrigerant service valve actuation failure Confirm that the refrigerant service valve is fully 8 Sh...

Page 213: ...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 214: ...the 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 10 C 18 F 3 Cause check method and remedy 2500 Cause Check method and remedy 1 Drain water drainage ...

Page 215: ...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 216: ...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 217: ...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 218: ...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 219: ...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 220: ...r is canceled if the units stop during error stop The error display needs to be canceled by setting the remote controller 3 Cause check method and remedy Check the following factors if an error is detected without drop in the outdoor temperature Reference 3121 Cause Check method and remedy 1 Thermistor failure Check thermistor resistance 2 Pinched lead wire Check for pinched lead wire 3 Torn wire ...

Page 221: ...ons Check for coil burnout Confirm that the voltage at the CN02 connector is 188 V or above 3 Wiring failure Confirm that the voltage at the control board connector CNAC is 188 V or above If the voltage is below 188V check the wiring connection between the noise filter board CN02 and control board CNAC P72 model Confirm that the wiring between TB23 and INV board SC T is put through CT3 P96 P120 P1...

Page 222: ... board failure Check the coil connections Check for coil burnout Check that the voltage across TB21 and TB22 on the noise filter board is 414V or above 3 Wiring failure Confirm that the voltage at the control board connector CNAC is 190 V or above If the voltage is below 190 check the wiring between noise filter CN6 noise filter CN2 transformer box and control board CNAC Confirm that the wiring be...

Page 223: ...t failure 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 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 224: ... Cause check method and remedy 4109 Cause Check method and remedy 1 Auxiliary relay X13 fault Coil failure disconnected coil 2 Connector CN28 is disconnected Check the connector for proper connection 3 Blown fuse Check the fuse on the control circuit board 4 Motor error thermistor error inside the motor Check the unit fan for proper operation in the test run mode If no problems are found with item...

Page 225: ...control board CNAC Confirm that the voltage at the control board con nector CNAC is 188 V or above 5 Control board failure If none of the items described above is applicable and if the trouble reappears even after the power is switched on again replace the control board 4115 YJMU A Cause Check method and remedy 1 Power supply error Check the voltage of the power supply terminal block TB1 2 Noise f...

Page 226: ...ay is ON Only for the three phase model Indoor unit If detected less than 180rpm or more than 2000rpm the indoor unit will restart and keep running for 3 minutes If detected again the display will appear 3 Cause check method and remedy 4116 Cause Check method and remedy 1 Board failure Replace the board 2 Motor malfunction Check for the motor and the solenoid switch 3 Solenoid switch malfunction ...

Page 227: ...that the bus voltage is above 160 V Replace the INV board if it is below 160 V 2 Check the voltage at CN505 on the control board Go to 3 3 Check the coil connections L1 L3 and coil burnout 4 Check the resistance of the diode stack Refer to IX 4 7 6 page 318 5 Check the wiring connections between the following sections Between the noise filter board and INV board Between the INV board and C1 Replac...

Page 228: ...ms 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 the INV board if no problems are found 4225 Check the voltage at CNVDC on the Fan board ...

Page 229: ... TJMU A under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 310 1 Error Code Abnormal bus voltage rise Detail code 109 2 Error definition and error detection method If Vdc 830V is detected during inverter operation 3 Cause check method and remedy 1 Different voltage connection Check the power supply voltage on the power supply terminal block TB1 2 INV board fa...

Page 230: ...s voltage abnormality If Vdc 400V or Vdc 160V is detected H W detection 3 Cause check method and remedy Same as detail code No 108 and 109 of 4220 error Refer to section 7 Inverter TJMU A under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 310 4220 4225 TJMU A P96 P120 P144 models only ...

Page 231: ...n the case of 4225 Refer to section 7 Inverter TJMU A under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 310 4220 4225 TJMU A Cause Check method and remedy 1 External noise 2 INV board failure Refer to IX 4 7 2 1 page 312 3 IPM failure P96 P120 P144 models only Replace the IPM 4 DCCT failure P96 P120 P144 models only Replace the DCCT Cause Check method and re...

Page 232: ...r page 320 1 Error Code Low bus voltage at startup Detail code 131 2 Error definition and error detection method When Vdc 160 V is detected just before the inverter operation 3 Cause check method and remedy 1 Inverter main circuit failure Same as detail code 108 of 4220 error Refer to section 7 Inverter under part 4 Troubleshooting Principal Parts for error codes related to the inverter 4220 4225 ...

Page 233: ...ilure Refer to IX 4 7 2 6 page 314 2 Outdoor unit fan failure Check the outdoor unit fan operation If any problem is found with the fan operation check the fan motor Refer to IX 4 7 2 5 page 314 3 Air passage blockage Check that the heat sink cooling air passage is not blocked 4 THHS failure P72 model 1 Check for proper installation of the INV board IGBT Check for proper instal lation of the IGBT ...

Page 234: ... 320 4230 YJMU A Cause Check method and remedy 1 Fan board failure Refer to IX 4 7 2 6 page 323 2 Outdoor unit fan failure Check the outdoor unit fan operation If any problem is found with the fan operation check the fan motor Refer to IX 4 7 2 5 page 323 3 Air passage blockage Check that the heat sink cooling air passage is not blocked 4 THHS failure 1 Check for proper installation of the INV boa...

Page 235: ...the inverter page 310 4240 TJMU A Model Imax Arms P72 model 35 P96 P120 P144 models 50 Model TOL P72 model 95 C 203 F P96 P120 P144 models 80 C 175 F 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 310 4 Current sensor ACCT failu...

Page 236: ...Troubleshooting Principal Parts for error codes related to the inverter page 320 4240 YJMU A Model Imax Arms P72 model 19 P96 P120 P144 models 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 414 V or above 3 Inverter failure Refer to IX 4 7 page 320 4 Compressor failure Check that...

Page 237: ...f 4255 Refer to section 7 Inverter TJMU A under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 310 4250 4255 TJMU A Cause Check method and remedy 1 Inverter output related Refer to IX 4 7 2 1 4 page 312 Cause Check method and remedy 1 Inverter output related Refer to IX 4 7 2 1 4 page 312 2 Same as 4230 error Same as 4230 error Cause Check method and remedy 1 F...

Page 238: ...er part 4 Troubleshooting Principal Parts for error codes related to the inverter page 320 4250 4255 YJMU A Cause Check method and remedy 1 Inverter output related Refer to IX 4 7 2 1 4 page 322 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 and remedy 1 Fan motor abnormality Refer to IX 4 7 2 5 page...

Page 239: ...el Overcurrent 88 Apeak or 42 Arms and above is detected by the current sensor P96 P120 P144 models Overcurrent 128 Apeak or 60 Arms and above is detected by the current sensor 3 Cause check method and remedy Refer to section 7 Inverter TJMU A under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 310 4250 TJMU A Cause Check method and remedy 1 Inverter output re...

Page 240: ... 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 4250 YJMU A Cause Check method and remedy 1 Inverter output related Refer to IX 4 7 2 1 4 page 322 Check the IGBT module resistance value of ...

Page 241: ...s or more at inverter startup 3 Cause check method and remedy Same as 4230 error 1 Error Code Heatsink overheat protection at startup 2 Error definition and error detection method The heatsink temperature THHS remains at or above 100 C 212 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 compre...

Page 242: ...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 243: ...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 Cause check method and remedy Reference 5103 5104 5105...

Page 244: ...r an open of THHS is detected just before or during the inverter operation 3 Cause check method and remedy Refer to section 7 Inverter YJMU A under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 320 5110 TJMU A Cause Check method and remedy 1 INV board failure If the problem recurs when the unit is put into operation replace the INV board Cause Check method and...

Page 245: ... after the operation mode is changed 3 Cause check method and remedy Reference 5111 5112 5115 5116 Cause Check method and remedy 1 Thermistor failure Check thermistor resistance 2 Pinched lead wire Check for pinched lead wire 3 Torn wire coating Check for wire coating 4 A pin on the male connector is missing or contact failure Check connector 5 Disconnected wire Check for wire 6 Thermistor input c...

Page 246: ... 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 247: ...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 288 2 Pressure drop due to refrigerant leak 3 Torn wire coating 4 A pin on the male connector is missing or contact ...

Page 248: ...r error codes related to the inverter page 310 5301 TJMU A Cause Check method and remedy 1 Inverter open output phase Check the output wiring connections 2 Compressor failure Refer to IX 4 7 2 2 page 312 3 INV board failure Refer to IX 4 7 2 1 3 4 page 312 Cause Check method and remedy 1 Inverter open output phase Check the output wiring connections 2 Compressor failure Refer to IX 4 7 2 2 page 31...

Page 249: ...tail code 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 5301 YJMU A Cause Check method and remedy 1 Inverter open output phase Check the output wiring conn...

Page 250: ... inverter page 310 5301 TJMU A P96 P120 P144 models only Cause Check method and remedy 1 Contact failure Check for good contact of the INV board connector CNCT and the connec tor on the DCCT side 2 INV board failure Refer to IX 4 7 2 1 3 4 page 312 3 DCCT sensor failure Replace the DCCT sensor 4 Compressor failure Refer to IX 4 7 2 2 page 312 5 Inverter failure Refer to IX 4 7 page 310 5301 TJMU A...

Page 251: ...hooting Principal Parts for error codes related to the inverter page 310 5301 YJMU A 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 respectively 2 Inverter failure Refer to IX 4 7 2 3 4 page 322 3 Compressor failure Refer to IX 4 7 2 2 page 322 5301 TJMU A Cau...

Page 252: ...ethod and remedy Refer to section 7 Inverter YJMU A under part 4 Troubleshooting Principal Parts for error codes related to the inverter page 320 5301 YJMU A 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 respectively 2 Inverter failure Refer to IX 4 7 2 3 4 p...

Page 253: ... 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 254: ... 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 255: ...ss 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 units keep ...

Page 256: ...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 188 253V Check the transmission line wor...

Page 257: ... 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 Check the transmission wave shape and noise on the transmission line See the section Investigation of Transmission ...

Page 258: ...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 259: ...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 260: ... 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 261: ...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 262: ...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 263: ... 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 264: ... 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 265: ...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 266: ...me 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 remote c...

Page 267: ...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 268: ...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 269: ...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 270: ...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 271: ...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 272: ...tch is differ ent from that of the unit connected 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...

Page 273: ... by the switch SW2 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 ...

Page 274: ...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 setting error The outdoor units in the same refrig...

Page 275: ...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 276: ...ch 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 54 96 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 277: ...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 278: ...eck the connector CNTYP4 on the control board for proper connection 4 Check the settings of SW5 1 through SW5 4 on the control board Detail code 16 1 Check the connector CNTYP on the INV board for proper connection 2 Check the connector CNTYP5 on the control board for proper connection 3 Check the connector CNTYP4 on the control board for proper connection 4 Check the settings of SW5 1 through SW5...

Page 279: ...V board for proper connection 2 Check the connector CNTYP5 on the control board for proper connection 3 Check the connector CNTYP4 on the control board for proper connection 4 Check the wiring between the control board and INV board Refer to the section on Error code 0403 Detail code 00 01 05 1 Check the wiring between the control board and INV board Refer to the section on Error code 0403 2 Check...

Page 280: ...oor unit The connected indoor unit or BC controller is exclusively for use with R22 or R407C An in compatible indoor unit or BC controller is con nected The M NET connection adapter is connected to the indoor unit system in a system in which the Slim Model A control of units are con nected to the M NET Incompatible units are connected Check the model names of the connected in door unit and the BC ...

Page 281: ... 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 polarit...

Page 282: ... 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 method and remedy...

Page 283: ...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 block TB13 for the M...

Page 284: ... Check 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 b...

Page 285: ...connected 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 353 2 Check method and remedy 1 Check voltage of the trans...

Page 286: ...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 AC208 230V 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 o...

Page 287: ...ol TB7 of the outdoor unit 3 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 1 When MELANS is used HO display on the remote controller will disappear when the indoor unit and the local remote con troller ME remote co...

Page 288: ...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 Transmission line is disconnected from the terminal block for central control system connection TB7 on the outdoor unit 6 Check that the transmission line for centralized control TB7 of the outdoor unit is not disconnect ed 8 Whe...

Page 289: ... 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 201 At high pressure Refer to 1302 page 203 2 Indoor unit LEV malfunction Refer to the page of LEV troubleshooting 4 5 page 297 Insufficient refrigerant flows due to LE...

Page 290: ...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 291: ...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 292: ...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 293: ...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 294: ...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 295: ...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 296: ...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 297: ...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 298: ...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 299: ...els This solenoid valve opens when powered Relay ON This valve turns on when low pressure LPS drops to 0 25 MPa 36 psi or below during Heating only or Heating main operation AND after 5 minutes have passed after compressor startup OR when 63HS1 is above 3 5 MPa 507psi with the SV9 turned on and SV5b turned off AND the frequency drops to the minimum To check whether the valve is open or closed chec...

Page 300: ...V6a TH7 TH3 SV4a SV4b SV4d TH6 CV9a CV10a SV5b CV4a CV2a CV7a CV3a CV5a HEX Solenoid Valves Block BV1 BV2 SV5c Refrigerant Circuit Figure P72 model 1 2 3 4 5 1 2 3 4 5 Solenoid valve block three compartments P72 model SV4d SV4b SV4a SV4d SV4b SV4a ...

Page 301: ...ve Solenoid valve coil 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 P96 model Solenoid valve block four compartments P96 model ...

Page 302: ...H7 TH3 SV4a SV4b SV4d TH6 CV9a CV5a SV5b CV4a CV2a CV7a CV6b CV5b HEX1 SV4c BV1 BV2 SV5c CV3a CV7b CV2b CV4b HEX2 Refrigerant Circuit diagram P120 P144 models Solenoid valve block three compartments 1 is located behind 3 SV4d SV4b SV4a SV4d SV4b SV4a Solenoid valve block ...

Page 303: ...e 6 In the case of SV5c Bypass valve This solenoid valve opens when energized when the relay is on This valve turns on depending on the operating conditions during Cooling main Cooling only and defrost P120 and P144 models only Check for proper operation on the LED and by listening for the operation sound of the solenoid valve 7 In the case of SV9 Bypass valve This solenoid valve opens when energi...

Page 304: ...o IX 4 7 2 5 Check the fan motor ground fault or the winding and IX 4 7 2 6 Check the FAN board failure 2 Electromagnetic contactor 52F P120 P144 only If the outdoor unit fan is not operating correctly according to what is specified in the table below check 52F for short circuit Use the flowchart to identify possible problems Check that the right and left connectors for the fan motor are connected...

Page 305: ...il voltage 206 252V Check the wiring between 52F and the control board Check that the secondary voltage on the transformer is between 206V and 252V Fuse is normal Is a voltage of between 188V and 253V TJMU or between 414V and 506V YJMU applied to the power supply input Correct the wiring according to the wiring diagram Correct the wiring according to the wiring diagram NO Replace the transformer a...

Page 306: ...umber 5 2 1 3 4 6 Output state Output phase number 1 2 3 4 1 ON OFF OFF ON 2 ON ON OFF OFF 3 OFF ON ON OFF 4 OFF OFF ON ON Output pulses change in the following orders when the Valve is closed 1 2 3 4 1 Valve is open 4 3 2 1 4 1 When the LEV opening angle does not change all the output phases will be off 2 When the output is open phase or remains ON the motor cannot run smoothly and rattles and vi...

Page 307: ...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 308: ...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 309: ...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 310: ...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 311: ... 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 312: ...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 313: ...n cooling and non heating SH12 small SC11 small SC16 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 314: ... 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 315: ... 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 316: ...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 317: ...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 SVB 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 ON Pressure dif ferential con trol OFF or ON O...

Page 318: ...913A 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 319: ...r wait for 5 to 10 minutes and confirm that the voltage at both ends of the electrolytic capacitor has dropped to a sufficiently low level 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 ter...

Page 320: ...the inverter frequency on the LED monitor and proceed to 2 6 if the fan motor is in operation 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 that the inverter output wiring is not in close contact with the power supply wiring and the transmission lines 3 Check that the...

Page 321: ...M 2 Logic error 4220 Detail code No 111 See the section Troubleshooting the IPM Refer to 7 5 Replace the IPM and put the out door unit back into operation If the problem persists replace the INV board Replace the INV board and put the outdoor unit back into opera tion If the problem persists replace the DCCT 2 Put the outdoor unit into operation 3 ACCT sensor circuit failure 5301 Detail code No 11...

Page 322: ...t voltage after the inverter output frequency has sta bilized 4 There is no voltage imbalance be tween the wires Normal Reconnect the short circuit connector to CN6 after checking the voltage P96 P120 models 1 Inverter related problems are de tected Turn off SW1 1 and go to 1 1 Disconnect the inverter output wire from the out put terminals U V W of the IPM 2 Inverter voltage is not output Check th...

Page 323: ...lace the INV board P96 P120 P144 models Replace the IPM If the problem persists replace the INV board If the problem persists after re placing the above parts go to section 2 Check the belt heater for prob lems if there is no voltage im balance When the error occurred liq uid refrigerant may have been present in the compressor 5 Check the fan motor ground fault or the winding Remove the wire for t...

Page 324: ...rcuit Diode stack IPM Rush current protection resistor Electromagnetic relay DC reactor 2 Turn on the power again and check again 1 Main power breaker trip 2 No remote control display 3 Turn on the outdoor unit and check that it operates normally 1 Operates normally without tripping the main breaker a The wiring may have been short circuited Search for the wire that short circuited and repair it b...

Page 325: ... row A cannot be measured with a tester Check only for shorting DC reactor DCL Measure the resistance between terminals 1ohm or lower almost 0 ohm Measure the resistance between terminals and the chassis Current sensor ACCT P96 P120 P144 models Disconnect the CNCT2 connector and measure the resistance between terminals 280 ohm 30 ohm 1 2 PIN U phase 3 4 PIN W phase Check point Row A Not to be shor...

Page 326: ...t point is not allowed 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 can be measured Judgment value reference Black P N U ...

Page 327: ...t open ohm or not shorted to 0 ohm The values are for reference and the margin of errors is allowed The result that is more than double or half of the result that is measured at the same measurement point is not allowed 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...

Page 328: ...he tab on the ter minals to remove them Judgment value reference Black SC P1 TB N SC R SC S SC T Red SC P1 5 200 ohm 5 200 ohm 5 200 ohm TB N SC R 5 200 ohm SC S 5 200 ohm SC T 5 200 ohm Black SC P2 TB N SC U SC V SC W Red SC P2 5 200 ohm 5 200 ohm 5 200 ohm TB N SC U 5 200 ohm SC V 5 200 ohm SC W 5 200 ohm SC P1 SC V SC W SC U SC R SC S SC T TB N Note SC P2 TJMU A ...

Page 329: ...r is 20V or below before checking inside the control box 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...

Page 330: ...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 and check that the grounding wor...

Page 331: ...or If there is none replace the com pressor 2 Compressor coil resistance failure Coil resistance value of 0 71 ohm 20 C 68 F P72 model Coil resistance value of 0 32 ohm 20 C 68 F P96 P144 models Replace the compressor 3 Check wheth er the inverter is damaged No load 1 Disconnect the invert er output wire from the terminals of the inverter board SC U SC V SC W 1 Inverter related problems are de tec...

Page 332: ...e is stabilized Greater than the larger of the fol lowing values imbalance of 5 or 5V Replace the INV board if there is a voltage imbalance Check the belt heater for prob lems if there is no voltage im balance When the error occurred liquid refrigerant may have been present in the compres sor 5 Check the fan motor ground fault or the winding Remove the wire for the out door fan motor and check the...

Page 333: ...procedure for individual components of main inverter circuit IGBT module Rush current protection resistor Electromagnetic relay DC reactor 3 Turn on the power again and check again 1 Main power breaker trip 2 No remote control display 4 Turn on the outdoor unit and check that it operates normally 1 Operates normally without tripping the main breaker a The wiring may have been short circuit ed Sear...

Page 334: ...d 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 335: ... 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 YJMU A ...

Page 336: ...lock for transmission line connection DC 17 30 V AC 208 230 V Terminal block for power source TB1 Noise filter Noise filter Fuse Fuse Fuse 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 337: ...tor 15V Power supply Inverter drive circuit Microcomputer 5 V Power supply 12 V Power supply DC DC converter Fuse Inverter Compressor Heat exchanger fan Fuse Fan board Microcomputer 5 V Power supply Inverter Inverter drive circuit Outdoor unit Power source system AC 208 230 V Control system DC 5 30 V 63H1 Inverter reset circuit DC DC converter Microcomputer 5 V Power supply 18 V Power supply Fuse ...

Page 338: ...nnector disconnection Check for shorted transmission line 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 CNDC on the INV board Check the voltage between SC P1 and TB N on the INV board Check the voltages among SC R SC S and SC T on the...

Page 339: ...r proper connection of connectors Fix the wiring and connector disconnection Check for shorted transmission line for centralized control YES Is there a wiring error or a connector disconnection Replace the control board Check the wiring between the control board and power supply board for the transmission line CN102 and CNIT and check for proper connection of connectors Check the voltage between N...

Page 340: ...C 460V 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 Power supply 30 V Power supply Relay drive circuit Re...

Page 341: ...lems found Replace the noise filter Replace the noise filter Replace the M NET board Connect the noise filter CN4 and then turn the power on Replace the control board Replace the noise filter Replace the noise filter Replace the control board Fuse F4 on the noise filter board is blown Fuse F4 on the noise filter board is blown Disconnect the noise filters CN4 and CN5 and then replace fuse F4 on th...

Page 342: ...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 343: ... 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 344: ...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 1 Remove the transformer box ...

Page 345: ... 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 346: ...d 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 places D...

Page 347: ...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 348: ...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 349: ...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 350: ...Y 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 next page with a pipe cutter Remove the pipe from the brazed A part Debraze B H pa...

Page 351: ...er 60 Bending R A φ12 7 1 2 After cutting pipe remove the pipe from the brazed A D φ15 88 5 8 Heat exchanger A φ12 7 1 2 B φ19 05 3 4 C φ15 88 5 8 Coil cover Solenoid valve coil SV4a SV4b SV4c SV4d Brazing 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 Refer to the next page for Check valve CV4a CV...

Page 352: ...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 353: ...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 354: ...solenoid valve coil and peripheral cables Remove the M5 screws that are holding the solenoid valve block supporting plate and the base Debraze A G parts total 7 places Do not damage heat exchanger fins and peripheral piping devices when removing the Solenoid valve block ASSY Remove the M5 screws that are holding the solenoid valve block and the solenoid valve block supporting plate To install Sole...

Page 355: ...C Removing Solenoid valve block ASSY A Screw M5 Supporting plate for solenoid valve block Solenoid valve block Debrazing pipe Removing or fixing the Supporting plate for solenoid valve block H ø15 88 5 8 ø15 88 5 8 ø15 88 5 8 ø28 58 1 1 8 ø9 52 3 8 ø9 52 3 8 ø19 05 3 4 ø12 7 1 2 Remove the pipe from the brazed H 3 Remove the cable that is fixed to the Frame ASSY MU upper and MB lower and remove th...

Page 356: ...k ASSY coil cover and peripheral cables back in place according to 1 Solenoid 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 conditio...

Page 357: ...point N CV4a CV8a CV9a CV6a 5 Check valve ASSY 6 6 3 4 4 1 N M L I J K 2 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 ø25 4 1 ø25 4 1 ø25 4 1 ø25 4 1 ø25 4 1 ø15 88 5 8 Check valve replacement 3 3 ...

Page 358: ... 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 Solenoid valve ASSY Ԙ Debraze A and B and remove solenoid valve ASSY from the unit ԙ Replace Solenoid valve SV1a or Capillary ...

Page 359: ...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 360: ...lace 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 pres...

Page 361: ... Remove the service panel Refer to 1 1 3 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 SVM1b SVM2 and SVM2b can be serviced through the inspec tion door SVC is accessible for replacement by remov ing the four mounting screws on the rear panel and removing the panel if enough space is available on the back SVM1 i...

Page 362: ...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 363: ... 354 IX Troubleshooting GB HWE0913A ...

Page 364: ... 355 HWE0913A GB X LED Monitor Display on the Outdoor Unit Board 1 How to Read the LED on the Service Monitor 357 ...

Page 365: ... 356 ...

Page 366: ...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 367: ...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 368: ... 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 21S4b 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 52F 5 1010000000 6 0110000000 7 1110000000 Special control Retry opera tion Emergency o...

Page 369: ...2 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 No 47 Unit No 48 19 1100100000 Top Unit No 49 Unit No 50 Bottom 20 0010100000 Indoor unit Operati...

Page 370: ...t No 47 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 st...

Page 371: ... 999 9 A A The unit is C 57 1001110000 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 Remarks 12345...

Page 372: ... 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 COMP operating fre quency 0000 to 9999 A A The unit is rps Output frequency of the inverter depends on the type of compressor and equals the integer multiples x1 x2 etc of the operating frequency of the com pressor 92 0011101...

Page 373: ...01011000 107 1101011000 108 0011011000 COMP operating cur rent DC 00 0 to 999 9 A A Peak value A 109 1011011000 110 0111011000 111 1111011000 COMP bus voltage 00 0 to 999 9 A A The unit 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 Current data No SW1 Item Display Unit A B 1 Rem...

Page 374: ...etion of backup control 122 0101111000 123 1101111000 COMP number of start stop events Upper 4 digits 0000 to 9999 A A Count up at start up The unit is Time 124 0011111000 COMP number of start stop events Lower 4 digits 0000 to 9999 A A 125 1011111000 126 0111111000 127 1111111000 128 0000000100 129 1000000100 Integrated operation time of compressor for rotation purpose 0000 to 9999 B The unit is ...

Page 375: ...VB15 SVC15 SVA16 SVB16 SVC16 137 1001000100 138 0101000100 Relay out put display BC Sub1 Top SVA1 SVB1 SVC1 SVA2 SVB2 SVC2 B Bottom SVA3 SVB3 SVC3 SVA4 SVB4 SVC4 139 1101000100 Top SVA5 SVB5 SVC5 SVA6 SVB6 SVC6 B Bottom SVA7 SVB7 SVC7 SVA8 SVB8 SVC8 140 0011000100 Top SVA9 SVB9 SVC9 SVA10 SVB10 SVC10 B Bottom SVA11 SVB11 SVC11 SVA12 SVB12 SVC12 141 1011000100 Top SVA13 SVB13 SVC13 SVA14 SVB14 SVC1...

Page 376: ... 152 0001100100 BC Main TH16 99 9 to 999 9 B 153 1001100100 BC Main 63HS1 99 9 to 999 9 B 154 0101100100 BC Main 63HS3 99 9 to 999 9 B 155 1101100100 BC Main SC11 99 9 to 999 9 B 156 0011100100 BC Main SH12 99 9 to 999 9 B 157 1011100100 BC Main SH13 99 9 to 999 9 B 158 0111100100 BC Main SC16 99 9 to 999 9 B 159 1111100100 BC Main LEV1 0000 to 2000 B LEV1 opening Fully open 2000 160 0000010100 BC...

Page 377: ...100 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 1000110100 Current 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 en...

Page 378: ...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 379: ...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 eration ...

Page 380: ... 9 A A The unit is C 228 0010011100 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 Display Unit A B...

Page 381: ...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 382: ... 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 383: ... 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 384: ...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 385: ...o 999 9 B 336 0000101010 BC Sub2 TH15 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 386: ...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 387: ...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 388: ...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 389: ...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 390: ... 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 391: ...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 392: ...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 393: ...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 394: ...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 395: ...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 396: ...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 397: ...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 398: ...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 399: ...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 400: ...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 401: ...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 402: ... 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 403: ...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 404: ...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 405: ...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 406: ...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 407: ...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 408: ... 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 409: ...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 410: ...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...

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