Mitsubishi Electric PUHY-P1000 Page 267 Service Handbook Download | Manualshive

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[8-8 Troubleshooting LEV Problems ]

- 258 -

HWE14040

GB

8-8

Troubleshooting LEV Problems

8-8-1

General Overview on LEV Operation

LEV (Indoor unit: Linear expansion valve) and LEV2 (Outdoor unit: Linear expansion valve) are stepping-motor-driven valves
that operate by receiving the pulse signals from the indoor and outdoor unit control boards.

(1) Indoor LEV and Outdoor LEV (LEV2)

The valve opening changes according to the number of pulses.

1) Indoor unit control board and the LEV (Indoor unit: Linear expansion valve)

2) Outdoor unit control board and the LEV (Outdoor unit: Linear expansion valve)

Note. The connector numbers on the intermediate connector and the connector on the control board differ. Check the color of the lead wire
to judge the number.

Control board

Drive circuit

LEV

M

5

5

2

2

1

1

3

3

4

4

6

6

DC12V

Red

Intermediate connector

Brown

Blue

Orange

Yellow

White

Red Orange

White

Brown

Blue

Yellow

6

5

4

4

3

2

1

3

2

1

4

3

2

1

ø4

ø3

ø2

ø1

ø4

ø3

ø2

ø1

Control board

Drive circuit

LEV

M

5

2

1

3

4

6

DC12V

Red

Blue

Orange

Yellow

White

Orange

White

Blue

Yellow

Red

6

5

4

3

2

1

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Summary of Contents for PUHY-P1000

Page 1: ......

Page 2: ...he performance of the unit or cause certain components of the unit to corrode which can result in refrigerant leakage wa ter leakage injury electric shock malfunc tions smoke or fire Do not try to defeat the safety features of the unit or make unauthorized setting changes Forcing the unit to operate the unit by de feating the safety features of the devices such as the pressure switch or the temper...

Page 3: ...g To reduce the risk of injury electric shock and malfunctions do not touch or allow ca bles to come in contact with the edges of components To reduce the risk of injury do not touch the heat exchanger fins or sharp edges of com ponents with bare hands Always wear protective gears when touch ing electrical components on the unit Sev eral minutes after the power is switched off residual voltage may...

Page 4: ... installed by the dealer or qualified personnel Only use the parts specified by Mitsubishi Electric Installation by unauthorized personnel or use of unauthorized parts or accessories may result in water leakage electric shock or fire Take appropriate safety measures against wind gusts and earthquakes to prevent the unit from toppling over and causing injury To reduce the risk of injury from units ...

Page 5: ...o condensation properly insulate the pipes Wiring Work To reduce the risk of wire breakage over heating smoke and fire keep undue force from being applied to the wires To reduce the risk of wire breakage over heating smoke or fire properly secure the cables in place and provide adequate slack in the cables so as not to stress the termi nals All electric work must be performed by a qualified electr...

Page 6: ...rter high frequency medical or wireless com munication equipment as well as power generators may cause the air conditioning system to malfunction Air conditioning system may also adversely affect the opera tion of these types of equipment by creating electrical noise To reduce the risk of damage to the unit leave the valves on the unit closed until re frigerant charging is completed Place a wet to...

Page 7: ...o not use the existing refrigerant piping A large amount of chloride that is contained in the residual refrigerant and refrigerant oil in the existing piping may cause the refriger ant oil in the new unit to deteriorate or dam age the compressor Charge refrigerant in the liquid state If re frigerant is charged in the gas phase the composition of the refrigerant in the cylin der will change comprom...

Page 8: ...oard Components 71 4 3 Outdoor Unit Electrical Wiring Diagrams 80 4 4 Transmission Booster Electrical Wiring Diagrams 82 Chapter 5 Control 5 1 Dipswitch Functions and Factory Settings 85 5 2 Outdoor Unit Control 93 5 3 Operation Flowcharts 106 Chapter 6 Test Run 6 1 Read before Test Run 113 6 2 MA and ME Remote Controller Functions and Specifications 114 6 3 Making the Group and Interlock Settings...

Page 9: ...ration and Troubleshooting Pressure Sensor Problems 253 8 6 Troubleshooting Solenoid Valve Problems 255 8 7 Troubleshooting Outdoor Unit Fan Problems 257 8 8 Troubleshooting LEV Problems 258 8 9 Troubleshooting Inverter Problems 264 8 10 Control Circuit 276 8 11 Measures for Refrigerant Leakage 281 8 12 Compressor Replacement Instructions 283 8 13 Troubleshooting Problems Using the LED Status Indi...

Page 10: ...Oil 5 1 2 1 Piping Materials 5 1 2 2 Storage of Piping Materials 7 1 2 3 Pipe Processing 7 1 2 4 Characteristics of the New and Conventional Refrigerants 8 1 2 5 Refrigerant Oil 9 1 3 Working with Refrigerant Piping 10 1 3 1 Pipe Brazing 10 1 3 2 Air Tightness Test 11 1 3 3 Vacuum Drying 12 1 3 4 Refrigerant Charging 13 1 4 Precautions for Wiring 14 1 5 Cautionary notes on installation environment...

Page 11: ... 2 HWE14040 GB ...

Page 12: ...ls refer to the following page s 1 1 2 Tool Preparation 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 contamina...

Page 13: ...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 used if a check v...

Page 14: ...ss may not be used Annealed pipes have been used for older model units when a diameter of the pipe is up to φ19 05 3 4 For a system that uses R410A use pipes that are made with 1 2H material Drawn Annealed pipes may be used for pipes with a diameter of φ19 05 3 4 and a radial thickness of 1 2 t The figures in the radial thickness column are based on the Japanese standards and provided only as a re...

Page 15: ...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 dimensions mm ...

Page 16: ...of the pipes should be sealed until just before 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 1 2 3...

Page 17: ...erant does not need to be replaced 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 N...

Page 18: ...Ester oil R410A Ester oil 1 Contaminants 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 t...

Page 19: ...res no flux when brazing between 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 chlo...

Page 20: ...e variations into account 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 ...

Page 21: ...thorough 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...

Page 22: ...maining refrigerant will change 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 If the refrigerant leaks out it may be replenished The entire refrigerant does not need to be replaced Charge refrigerant in the liquid state Refer to ...

Page 23: ...hen a system controller is connected to the centralized control transmission cable to which power is supplied from the out door unit power jumper on the outdoor unit is connected to CN40 be aware that power can be supplied to the centralized control transmission and the system controller may detect an error and send an error notice if the outdoor unit fan is rotated by external forces such as stro...

Page 24: ...tightening the screw mark a line through the screw head washer and terminals with a permanent marker Example Poor contact caused by loose screws may result in overheating and fire Continued use of the damaged circuit board may cause overheating and fire Daisy chain Power supply terminal block indoor outdoor transmission line terminal block and centralized controller transmission line Mark a line P...

Page 25: ...he exposure to salt water mist 2 Avoid installing a sun shade over the outdoor unit so that rain will wash away salt deposits off the unit 3 Install the unit horizontally to ensure proper water drainage from the base of the unit Accumulation of water in the base of the outdoor unit will significantly accelerate corrosion 4 Periodically wash salt deposits off the unit especially when the unit is in...

Page 26: ...ller 32 2 7 1 Single Refrigerant System Automatic Indoor Outdoor Address Startup 32 2 7 2 Single Refrigerant System with Two or More LOSSNAY Units 34 2 7 3 Grouped Operation of Units in Separate Refrigerant Circuits 36 2 7 4 System with a Connection of System Controller to Centralized Control Transmission Line 38 2 7 5 System with a Connection of System Controller to Indoor Outdoor Transmission Li...

Page 27: ... 18 HWE14040 GB ...

Page 28: ...al capacity of con nectable indoor units Maximum number of connect able indoor units Types of connectable indoor units P200 YKB A1 100 260 17 P15 P250 models R410A series indoor units P250 YKB A1 125 325 21 P300 YKB A1 150 390 26 P350 YKB A1 175 455 30 P400 YKB A1 200 520 34 P450 YKB A1 225 585 39 P500 YKB A1 250 650 43 P400 YSKB A1 P200 P200 200 520 34 P450 YSKB A1 P250 P200 225 585 39 P500 YSKB ...

Page 29: ...8 Example System with an ME Remote Controller page 42 2 9 Example System with an MA and an ME Remote Controller page 44 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 ...

Page 30: ...frigerant circuit are automatically designated as OC OS1 and OS2 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 4 When setting the switch SW4 of the control board set it with the outdoor unit power on Refer to the following page s 5 1 1...

Page 31: ...ee Plan adapt er LOSSNAY OA processing unit Air handling kit 00 01 to 50 1 6 Assign an arbitrary but unique address to each of these units after assigning an address to all indoor units 00 ATW Booster Unit Water Hex Unit ME remote con troller Main remote controller 101 to 150 Add 100 to the smallest address of all the indoor units in the same group 101 Sub remote controller 151 to 200 2 Add 150 to...

Page 32: ... controller install the remote controller where room temperature can be detected Note Factory setting for SW1 1 on the indoor 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 configu ration Connection to the system con troller Power...

Page 33: ...ftware for general equipment via the AE 200 AG 150A GB 50ADA or G B 50A set SW1 9 and SW1 10 to ON With these settings made the power start stop function becomes disabled To use the auto recovery function after power failure while these settings are made set SW1 5 to ON 2 4 6 Miscellaneous Settings Cooling only setting for the indoor unit Cooling only model Factory setting SW3 1 OFF When using ind...

Page 34: ...me system 7 If the formula TH7 5 holds true the fan will not go into operation when the contact receives signal input 8 When using a base heater change the setting using SW4 When using a base heater error output will not be available Type Usage Function Terminal to be used 1 Option Input Prohibiting cooling heating operation thermo OFF by an external input to the outdoor unit It can be used as the...

Page 35: ...ntact 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 Outdoor unit control board Maximum cab...

Page 36: ... SC36NA E or field supply X Energy saving mode command X Relay Contact rating voltage DC15V Contact rating current 0 1A Minimum appicable load 1mA at DC X CN3K Preparations in the field Maximum cable length is 10m Outdoor unit control board 3 2 1 Relay circuit External input adapter 2 ...

Page 37: ... on the compressor volume and does not necessarily correspond with the actual capacity 5 Notes on using demand control in combination with the low noise mode To enable the low noise mode it is necessary to short circuit 1 2 pin of CN3D on the outdoor unit whose SW6 8 is set to OFF When SW6 8 is set to ON on all outdoor units the following operations cannot be performed Performing 4 step demand in ...

Page 38: ...it Open 88 38 75 63 Short circuit 75 25 63 50 12 levels of on DE MAND No 2 CN3D 1 2P Open 1 3P Open Short circuit No 3 CN3D 1 2P Open Short circuit Open Short circuit No 1 CN3D 1 2P 1 3P Open Short circuit Open Short circuit Open Short circuit Open Short circuit Open Open 100 67 92 84 67 34 59 50 Short circuit 67 34 59 50 34 0 25 17 Short circuit Open 92 59 84 75 59 25 50 42 Short circuit 84 50 75...

Page 39: ...tup Connection of multiple LOSS NAY 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 System configuration Connection to the system controlle...

Page 40: ... 2 6 System Connection Example 31 HWE14040 GB 2 Restrictions ...

Page 41: ...re LOSSNAY units to a system refer to the following page s 2 7 2 Single Refrigerant System with Two or More LOSSNAY Units page 34 3 Maximum allowable length 1 Indoor outdoor transmission line Maximum distance 1 25mm2 AWG16 or larger L1 L2 L3 L4 200m 656ft L1 L2 L11 L12 L13 200m 656ft 2 Transmission line for centralized control No connection is required 3 MA remote controller wiring Maximum overall...

Page 42: ... block on the MA re mote controller Non polarized two wire When performing a group operation of indoor units that have different functions Automatic indoor outdoor ad dress setup is not available 4 LOSSNAY connection Connect terminals M1 and M2 on the terminal block TB5 on the indoor unit IC to the appropriate terminals on the terminal block TB5 on LOSSNAY LC Non po larized two wire Interlock oper...

Page 43: ...her information about how many booster units are required for a given system 3 Maximum allowable length 1 Indoor outdoor transmission line Same as 2 7 1 2 Transmission line for centralized control No connection is required 3 MA remote controller wiring Same as 2 7 1 L2 TB3 51 52 TB7 S TB3 TB7 S IC TB5 S TB15 1 2 01 IC TB5 S TB15 1 2 02 A B MA A B MA LC TB5 S 05 IC TB5 S 1 2 TB15 IC TB5 S TB15 1 2 ...

Page 44: ...oor units are designated as OC OS1 and OS2 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 Proce dures Unit or controller Address setting range Setting method Notes Factory setting 1 Indoor unit Main unit IC 01 to 50 Assign the smallest ad dress to the main unit in the group To perform a group opera tion of indoor...

Page 45: ...h 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 L21 L31 200m 656ft 3 MA remote controller wiring Same as 2 7 1 4 Maximum line distance via outdoor unit 1 25mm2 AWG16 or larger L12 L11 L31 L22 L21 500m 1640ft IC TB5 S TB15 1 2 01 IC TB5 S TB15 1 2 03 A B MA A B MA LC TB5 S 07 IC TB5 S 1 2...

Page 46: ...l and the S terminal on the terminal block TB7 on the out door unit whose power jumper connector is mated with CN40 3 MA remote controller wiring Same as 2 7 1 When 2 remote controllers are connected to the sys tem Same as 2 7 1 Group operation of indoor units Same as 2 7 1 4 LOSSNAY connection Same as 2 7 2 5 Switch setting Address setting is required as follows 5 Address setting method The outdo...

Page 47: ...hen a power supply unit is connected to the transmission 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 2 7 3 2 Transmission line for centralized control L31 L32 L21 200m 656ft 3 MA remote controller wiring Same as 2 7 1 4 Maximum line distance via outdoor unit 1 25mm2 AWG16 or lar...

Page 48: ...Group operation of indoor units Same as 2 7 1 4 LOSSNAY connection Connect terminals M1 and M2 on the terminal block TB5 on the indoor unit IC to the appropriate terminals on the terminal block for indoor outdoor transmission line TB5 on LOSSNAY LC Non polarized 2 core cable Indoor units must be interlocked with the LOSSNAY unit using the system controller Refer to the operation man ual for the sy...

Page 49: ...r outdoor transmission line Refer to the DATABOOK for further information about how many booster units are required for a given system 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 656ft 3 MA remote controller wiring Same as 2 7 1 4 ...

Page 50: ...t the earth terminal and the S terminal on the terminal block TB7 on the out door unit whose power jumper connector is mated with CN40 3 MA remote controller wiring Same as 2 7 1 When 2 remote controllers are connected to the sys tem Same as 2 7 1 Group operation of indoor units Same as 2 7 1 4 LOSSNAY connection Connect terminals M1 and M2 on the terminal block TB5 on the indoor units IC to the a...

Page 51: ...centralized control Same as 2 7 4 3 M NET remote controller wiring Maximum overall line length 0 3 to 1 25mm2 AWG22 to 16 m1 10m 32ft m2 m3 10m 32ft If the standard supplied cable must be extended use a cable with a diameter of 1 25mm2 AWG16 The section of the cable that exceeds 10m 32ft must be included in the maximum in door outdoor transmission line distance described in 1 When connected to the...

Page 52: ... or controller Address setting range Setting method Notes Factory setting 1 Indoor unit Main unit IC 01 to 50 Assign the smallest ad dress to the main unit in the group To perform a group operation of indoor units that have differ ent functions desig nate the indoor unit in the group with the greatest number of functions as the main unit 00 Sub unit Assign sequential num bers starting with the ad ...

Page 53: ...e or more indoor units of the 200 model or above are connected Refer to the DATABOOK for further information about how many booster units are required for a given system 11 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 2 7...

Page 54: ...est number of functions as the main unit 00 Sub unit Assign sequential num bers starting with the ad dress of the main unit in the same group 1 Main unit address 1 main unit address 2 main unit ad dress 3 etc MA re mote con troller Main re mote con troller MA No settings required Main Sub remote controller MA Sub remote controller Settings to be made ac cording to the remote con troller function s...

Page 55: ...h from the first branch to the far thest indoor unit B C c or D f 40 131 or less 1 Height difference 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 units h 15 49 or less 2 1 If the piping length exceeds 40 meters but does not exceed 90 meters use one size larger pipes for all the liquid pipes beyond ...

Page 56: ...ference between indoor units exceeds 15 meters but does not exceed 30 meters use one size larger liquid pipes for the relevant indoor units In the figure above the pipes whose size should be increased by one size are indicated by J K M e f g and i when the h1 exceeds 15 meters Between outdoor units h2 0 1 0 3 or less Indoor Indoor Indoor Indoor Indoor Indoor Indoor Indoor E L H a h1 h2 b 2 1 c 3 d...

Page 57: ... b1 and e1 by one size H1 exceeds 15 m H2 15 m or less C D c A B H2 H1 d e2 e1 E a b2 b1 Outdoor unit Outdoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Outdoor unit Increase the size of the pipe indicated by A a1 and a2 by one size H exceeds 15 m B H A a1 a2 b Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor u...

Page 58: ...3 8 2 2 Use ø12 7 1 2 pipes if the piping length to the farthest indoor unit exceeds 40 m 131 ft ø28 58 1 1 8 350 model ø12 7 1 2 ø28 58 1 1 8 400 model ø12 7 1 2 ø28 58 1 1 8 450 model ø15 88 5 8 ø28 58 1 1 8 500 model ø15 88 5 8 ø28 58 1 1 8 550 model ø15 88 5 8 ø28 58 1 1 8 600 model ø15 88 5 8 ø28 58 1 1 8 650 model ø15 88 5 8 ø28 58 1 1 8 700 800 model ø19 05 3 4 ø34 93 1 3 8 850 1350 model ø...

Page 59: ...Total capacity of the downstream units Liquid pipe size mm inch Gas pipe size mm inch 140 ø9 52 3 8 ø15 88 5 8 P141 P200 ø9 52 3 8 ø19 05 3 4 P201 P300 ø9 52 3 8 ø22 2 7 8 P301 P400 ø12 7 1 2 ø28 58 1 1 8 P401 P650 ø15 88 5 8 ø28 58 1 1 8 P651 P800 ø19 05 3 4 ø34 93 1 3 8 P801 ø19 05 3 4 ø41 28 1 5 8 Liquid pipe size mm inch Gas pipe size mm inch ø19 05 3 4 ø34 93 1 3 8 Liquid pipe size mm inch Ga...

Page 60: ...ce and Refrigerant Circuit Components of Outdoor Unit 53 3 1 1 External Appearance of Outdoor Unit 53 3 1 2 Outdoor Unit Refrigerant Circuits 56 3 2 Outdoor Unit Refrigerant Circuit Diagrams 59 3 3 Functions of the Major Components of Outdoor Unit 61 3 4 Functions of the Major Components of Indoor Unit 64 ...

Page 61: ... 52 HWE14040 GB ...

Page 62: ...s 3 Major Components Their Functions and Refrigerant Circuits 3 1 External Appearance and Refrigerant Circuit Components of Outdoor Unit 3 1 1 External Appearance of Outdoor Unit 1 PUHY P200 P250YKB A1 Fan guard Fan guard Fan Fan Control box Control box Heat exchanger Heat exchanger Front panels Front panels Fin guard Fin guard Side panel Side panel ...

Page 63: ...igerant Circuit Components of Outdoor Unit 54 HWE14040 GB 2 PUHY P300 P350 P400YKB A1 Fan guard Fan guard Fan Fan Control box Control box Heat exchanger Heat exchanger Front panels Front panels Fin guard Fin guard Side panel Side panel ...

Page 64: ...Unit 55 HWE14040 GB 3 Major Components Their Functions and Refrigerant Circuits 3 PUHY P450 P500YKB A1 Fan box Fan box Fan guards Fan guards Fans Fans Control box Control box Heat exchanger Heat exchanger Front panels Front panels Fin guard Fin guard Side panel Side panel ...

Page 65: ...V11 Solenoid valve SV10 Subcool coil Linear expansion valve LEV2a Linear expansion valve LEV2b Linear expansion valve LEV1 Liquid side valve BV2 Gas side valve BV1 Oil separator Compressor Solenoid valve SV9 Solenoid valve SV1a Low pressure check joint CJ2 Compressor cover Accumulator High pressurecheck joint CJ1 High pressure sensor 63HS1 High pressure switch 63H1 Low pressure sensor 63LS Check v...

Page 66: ...noid valve SV11 Solenoid valve SV10 Subcool coil Linear expansion valve LEV2a Linear expansion valve LEV2b Linear expansion valve LEV1 Liquid side valve BV2 Gas side valve BV1 Oil separator Compressor Solenoid valve SV1a Low pressure check joint CJ2 Compressor cover Accumulator High pressure check joint CJ1 High pressure sensor 63HS1 High pressure switch 63H1 Low pressure sensor 63LS Check valve C...

Page 67: ... Solenoid valve SV10 Subcool coil Linear expansion valve LEV2a Linear expansion valve LEV2b Linear expansion valve LEV1 Liquid side valve BV2 Gas side valve BV1 Oil separator Compressor Solenoid valve SV1a Low pressure check joint CJ2 Compressor cover Accumulator High pressure check joint CJ1 High pressure sensor 63HS1 High pressure switch 63H1 Low pressure sensor 63LS Check valve CV1 Solenoid val...

Page 68: ...ls 2 PUHY P300 P350 P400 models SCC LEV1 SV1a SV11 SV10 CP5 CP4 63H1 ST3 ST6 63HS1 CJ1 CJ2 ST7 21S4b 21S4a CP1 CV1 ST1 ST2 BV2 BV1 SV9 ACC Comp O S HEX FAN MOTOR LEV2b LEV2a TH4 TH2 TH9 TH3 TH7 TH11 63LS TH6 TH5 SCC LEV1 SV1a SV11 SV10 CP5 CP4 63H1 ST3 ST6 63HS1 CJ1 CJ2 ST7 21S4b 21S4a CP1 CV1 ST1 ST2 BV2 BV1 SV9 ACC Comp O S HEX FAN MOTOR LEV2b LEV2a TH4 TH2 TH9 TH3 TH7 TH11 63LS TH6 TH5 ...

Page 69: ...WE14040 GB 3 PUHY P450 P500 models SCC LEV1 ACC 63H1 21S4a ST6 63HS1 ST7 21S4c CJ1 Comp O S LEV2a LEV2b ST2 BV2 BV1 21S4b SV5b SV9 SV10 SV11 ST1 63LS FAN2 HEX2 FAN1 HEX1 SV1a CP1 CV1 HEX2 TH7 MOTOR MOTOR TH9 CJ2 TH11 TH2 HEX1 TH3 TH6 TH4 TH5 ST3 CP5 CP4 ...

Page 70: ...C 68 F 0 30 Ω P450 P500 models Low pressure shell scroll compressor wirewound resistance 20 C 68 F 0 43 Ω High pres sure sensor 63HS1 1 Detects high pressure 2 Regulates frequency and pro vides high pressure protec tion Low pres sure sensor 63LS 1 Detects low pressure 2 Provides low pressure pro tection 3 Defrost control during heating operation Pres sure switch 63H1 1 Detects high pressure 2 Prov...

Page 71: ... TH7 Outdoor temperature 1 Detects outdoor air tempera ture 2 Controls fan operation TH5 LEV2 are controlled based on the 63LS and TH5 values TH6 Controls LEV1 based on TH2 TH3 and TH6 data TH9 11 Determines the completion of Continuous heating cycle mode THHS Inverter heat sink temperature Controls inverter cooling fan based on THHS temperature Degrees Celsius 0 C 32 F 161 kΩ 10 C 50 F 97 kΩ 20 C...

Page 72: ...ffers from that of the indoor LEV Refer to the follow ing page s 8 8 Troubleshooting LEV Prob lems page 258 LEV2a Refrigerant flow adjust ment Adjusts refrigerant flow during heating Cut off the refrigerant flow during continuous heating cycle DC12V Opening of a valve driven by a stepping motor 2100 pulses Max 3000 pulses Refer to the section Continuity Test with a Tester Continuity between white ...

Page 73: ...uity between yellow brown and blue Thermis tor TH1 Suction air tem perature Indoor unit control Thermo 0 C 32 F 15 kΩ 10 C 50 F 9 7 kΩ 20 C 68 F 6 4 kΩ 25 C 77 F 5 3 kΩ 30 C 86 F 4 3 kΩ 40 C 104 F 3 1 kΩ Resistance check TH2 Pipe tempera ture 1 Indoor unit control Frost prevention Hot adjust 2 LEV control during heat ing operation subcool detection TH3 Gas pipe tem perature LEV control during cool...

Page 74: ... 4 1 2 Fan Box 70 4 2 Outdoor Unit Circuit Board Components 71 4 2 1 Control Board 71 4 2 2 M NET Board Transmission Power Supply Board 72 4 2 3 INV Board 73 4 2 4 Fan Board 75 4 2 5 Noise Filter 76 4 2 6 Capacitor Board 78 4 2 7 Connect Board 79 4 3 Outdoor Unit Electrical Wiring Diagrams 80 4 4 Transmission Booster Electrical Wiring Diagrams 82 ...

Page 75: ... 66 HWE14040 GB ...

Page 76: ... 7 When opening or closing the front panel of the control box do not let it come into contact with any of the internal components Before plugging in or unplugging connectors check that the outdoor unit fan is not rotating and that the voltage between FT P and FT N on the INV board is 20 VDC or less It takes about 10 minutes to discharge electricity after the power supply is turned off 8 When the p...

Page 77: ... Arrangement 68 HWE14040 GB 2 PUHY P450 P500YKB A1 Capacitor Board INV board Control board M NET board Terminal block for transmission line TB3 TB7 Terminal block for power supply TB1 Noise filter Fan board Ground terminal DC Reactor ...

Page 78: ...tions Refer to the wiring nameplate for details 5 To connect wiring to TB7 check that the voltage is 20 VDC or below 6 Reconnect the connector CNINV back to the fan board and reconnect the connector CN1 back to the inverter board after servicing 7 When opening or closing the front panel of the control box do not let it come into contact with any of the internal components Before inspecting the ins...

Page 79: ...nnect board connector CN103 Before plugging in or unplugging connectors check that the outdoor unit fan is not rotating and that the voltage be tween FT P and FT N on the INV board or between SC P and SC N on the capacitor board is 20 VDC or less The ca pacitor may collect a charge and cause an electric shock when the outdoor unit fan rotates in windy conditions 3 Reconnect the connector CNINV bac...

Page 80: ...CN51 12 VDC output Compressor ON OFF signal output Error signal output CN41 Centralized control power supply OFF External signal input contact input F01 250 VAC 3 15A T CNRYB 72 drive signal output Sensor input CN2 2A Serial communication signal input GND CN4 4A 5 VDC output GND Serial communication GND 16 VDC GND FAN INV board 1 17 VDC 17 VDC GND INV board CN332 18 VDC output GND FAN INV board 2 ...

Page 81: ...nput output for centralized control system CNIT 12VDC input GND 5VDC input 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 ...

Page 82: ... connector CNINV and the inverter board con nector CN1 Before plugging in or unplugging connectors check that the outdoor unit fan is not rotating and that the voltage between FT P and FT N on the INV board is 20 VDC or less The capacitor may collect a charge and cause an electric shock when the outdoor unit fan rotates in windy conditions Refer to the wiring nameplate for details 5 To connect wir...

Page 83: ...vicing 7 When the power is on the compressor or heater is energized even while the compressor is stopped Before turning on the power disconnect all power supply wires from the compressor terminal block and measure the insulation resistance of the compressor Check the compressor for a ground fault If the insulation resistance is 1 0 MΩ or below connect all power supply wires to the compressor and t...

Page 84: ... off the power source 3 Perform the service after disconnecting the outdoor unit fan board connector CNINV and the inverter board con nector CN1 Before plugging in or unplugging connectors check that the outdoor unit fan is not rotating and that the voltage between FT P and FT N on the INV board or between SC P and SC N on the capacitor board is 20 VDC or less The capacitor may collect a charge an...

Page 85: ...utput Rectified L2 N current P N CN5 Output Rectified L2 N current P N TB21 Input output L1 TB22 Input output L2 TB23 Input output L3 TB24 Input N CN1B Input L3 L2 CN1A Input N L1 Grounding F1 F2 F3 F4 Fuse 250VAC 6 3A CN3 Output L1 N Grounding CN2 Surge absorber circuit Surge absorber circuit Short circuit Short circuit ...

Page 86: ...4 3 CN3 Output L1 N 1 3 CN4 Output L2 N L3 1 3 1 3 5 5 6 CN2 Surge absorber circuit Surge absorber circuit Short circuit Short circuit Grounding Grounding Grounding F3 Fuse 250VAC 6 3A F1 Fuse 250VAC 6 3A F2 Fuse 250VAC 6 3A TB24 Input output N TB23 Input output L3 TB22 Input output L2 TB21 Input output L1 CAUTION FOR HIGH VOLTAGE CAUTION FOR HIGH VOLTAGE ...

Page 87: ...or board connector CN103 Before plugging in or unplugging connectors check that the outdoor unit fan is not rotating and that the voltage between SC P and SC N on the capacitor board is 20 VDC or less The capacitor may collect a charge and cause an electric shock when the outdoor unit fan rotates in windy conditions Refer to the wiring nameplate for details 4 To connect wiring to TB7 check that th...

Page 88: ...houses high temperature parts Be well careful even after turning off the power source 3 Perform the service after disconnecting the fan board connector CNINV and the connector board connector CN103 Before plugging in or unplugging connectors check that the outdoor unit fan is not rotating and that the voltage between FT P and FT N on the INV board or between SC P and SC N on the capacitor board is...

Page 89: ...lue CN3N 1 3 3 21S4b 4 TB1 CN1B TB7 Power selecting connector 1 IPM 2 5 6 L3 N DCL black 72C white red 2 6 ON OFF M NET power supply circuit 1 2 M NET Board Power failure detection circuit Indoor Outdoor transmission cable INV Board red TB23 TB24 L2 L1 ON 1 s digit THHS CN102 C31 C33 C35 C37 1 4 1 1 W 10 s digit OFF LED2 Normal operation Lit Error Blink CNS2 yellow CNDC red red MS 3 2 2 C100 5 U L...

Page 90: ...ndoor Outdoor transmission line ZNR400 6 Central control transmission cable ON OFF Motor Compressor red CN3S CN04 red CN61 green CN202 red 6 1 2 4 4 1 SW5 10 5 CN3D 1 black CNAC2 1 ON OFF 10 SWU1 CN212 red 3 6 CN80 4 CNTYP5 green LED4 CPU in operation LED1 Normal operation Lit Error Blink 5 CNSNR TB22 SWP01 FAN Board 63LS 2 CN507 black 3 3 6 4 SV9 Noise filter red 1 2 1 CNLVA CNLVB red 1 F01 AC250...

Page 91: ...hite White White White Blue Red Red DSA White White Blue Red Red Red Red Varistor Varistor Noise filter Stabilized power supply 4 3 2 1 1 2 3 CN2 CN1 Black Black Black Black Green Yellow 1 2 3 E 4 Choke coil 1 2 CN3 1 2 1 2 CN4 CN2 1 2 CN1 Electronic control board Black White Red Red Black S B A S B A Terminal block 2 for transmission line TB3 Expanded indoor unit side Terminal block 1 for transmi...

Page 92: ...ation Control 96 5 2 8 Continuous heating mode control 97 5 2 9 Refrigerant Recovery Control 98 5 2 10 Outdoor Unit Fan Control 99 5 2 11 Subcool Coil Control Linear Expansion Valve 1 99 5 2 12 Refrigerant Flow Control Linear Expansion Valves 2a and 2b 99 5 2 13 Control at Initial Startup 99 5 2 14 Emergency Operation Mode 102 5 2 15 Operation Mode 105 5 2 16 Demand Control 105 5 2 17 Control of I...

Page 93: ... 84 HWE14040 GB ...

Page 94: ...or on Outdoor Unit page 25 5 Operation noise is reduced by limiting the frequency of the compressor and rotation speed of the outdoor unit fan Switch Function Function according to switch setting Switch setting timing Units that require switch setting Note 2 OFF ON SWU 1 2 Unit address setting Set to 00 or 51 100 with the dial switch Before power on C SW5 1 Centralized control switch Without conne...

Page 95: ... 10 minutes after compressor start up OFF ON D No 915 1100100111 Defrost start temperature Note 3 P200 P300 13 C 9 F P350 P450 11 C 12 F 8 C 18 F Anytime after power on B No 916 0010100111 Defrost end temperature Note 3 P200 P250 10 C 50 F P300 P450 7 C 45 F 5 C 41 F Anytime after power on B No 918 0110100111 Changes the defrost timer setting Note 3 50 minutes 90 minutes Anytime after power on OFF...

Page 96: ...e configured with SW4 SW6 10 ON will automatically be stored on the indoor units that support the new function The stored settings will automatically be restored when the outdoor unit control board is replaced If none of the connected indoor units supports the new function no configuration information will be saved If this is the case manually record the settings configuration on the control box p...

Page 97: ...ion function and may result in equipment damage Switch Function Function according to switch setting Switch setting timing OFF ON SW001 1 Detects or ignores the following errors ACCT DCCT sensor fault 5301 Detail No 115 and 116 ACCT DCCT sensor circuit fault 5301 Detail No 117 and 118 Open circuited IPM Loose CNCT2 connector 5301 Detail No 119 Detection of faulty wiring 5301 Detail No 120 Error de...

Page 98: ...V 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 Thermo OFF Very Low Low Preset speed Cooling only Enabled Enabled Disabled Disabled Enabled Enabled Not available A...

Page 99: ...r to the installation manual for the outdoor unit for details on how to make the address setting Each address is set with a combination of the settings for the 10 s digit and 1 s digit Example When setting the address to 3 set the 1 s digit to 3 and the 10 s digit to 0 When setting the address to 25 set the 1 s digit to 5 and the 10 s digit to 2 ...

Page 100: ...A do not have the switches listed above Refer to the installation manual for the function setting ON OFF 1 2 3 4 Comment Switch setting timing Before power on Before power on Before power on Before power on OFF ON SW contents Main SW No 1 Remote controller Main Sub setting Main Set one of the two remote controllers at one group to ON 2 Temperature display units setting Celsius When the temperature...

Page 101: ...In case of address 108 Address setting range Setting method Main remote controller 101 150 Add 100 to the smallest address of all the indoor units in the same group Sub remote controller 151 200 Add 150 to the smallest address of all the indoor units in 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 shipmen...

Page 102: ...on the OC 5 2 3 Initial Control When the power is turned on the initial processing of the microcomputer is given top priority During the initial processing control processing of the operation signal is suspended The control processing is resumed after the initial processing is completed Initial processing involves data processing in the microcomputer and initial setting of each of the LEV opening ...

Page 103: ... during the heating mode Compressor frequency after power on is greater than 0 The low pressure 63LS drops One or more minutes after compressor startup if the cumulative compressor operation time is one hour or less three or more minutes if the cumulative compressor operation time is one hour or more When the low pressure 63LS drops below 0 12 MPa 17 psi When the low pressure 63LS ris es above 0 1...

Page 104: ...4 of the compressor in operation is monitored and when it exceeds the upper limit the frequency is decreased every minute Operating temperature is 115 C 239 F 3 Periodic frequency control Frequency control other than the ones performed at start up upon status change and for protection is called periodic frequen cy control convergent control and is performed in the following manner Periodic control...

Page 105: ...th 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 2 Defrost operation Condition 1 Condition 2 Condition 3 Outside temperature TH7 5ºC 23ºF or above 5ºC 23ºF or below Cumulative compressor operation time 50 minutes or more 90 minutes or more if the defrost prohibit timer is set to 90 250 min...

Page 106: ...er 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 until it has run its course 5 2 8 Continuous heating mode control 1 Continuous heating mode start conditions Continuous heating mode will st...

Page 107: ...very TH4 115 C 239 F Frequencies below 50 Hz Refrigerant recovery 1 Refrigerant is recovered with the LEV on the applicable indoor unit unit under stopping mode fan mode cooling heating with thermo off being opened for 30 seconds 2 Periodic capacity control of the outdoor units and periodic LEV control of the indoor units will be suspended during refrigerant recovery operation they will be perform...

Page 108: ...n the heating mode while the compressor is stopped and during cooling Thermo OFF In a multiple outdoor unit system the LEV closes 0 during heating operation while the compressor is stopped or during cooling Thermo OFF The LEV opens to a specified position when 15 minutes have passed after Thermo OFF 65 pulses During the defrost cycle normally the valve initially operates at 0 pulses although it ma...

Page 109: ...50Hz OS Completed in the integrated 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 o...

Page 110: ...the integrated operation time of 35 minutes Completed in the integrated operation time of 90 minutes The compressor on the OS1 starts up 50 F 60Hz OS2 or F 50Hz OS2 Completed in the integrated operation time of 35 minutes Completed in the integrated operation time of 90 minutes The compressor on the OS2 starts up 2 3 4 5 Yes No No Yes Initial startup mode complete 50 F 60Hz both OS1 and OS2 Comple...

Page 111: ...s that permit an emergency operation Applicable to both OC and OS Emergency operation pattern 2 outdoor units Trouble source Error codes that permit an emergency operation Error code description Compressor Fan motor Inverter 0403 Serial communication error 4220 4225 4226 Bus voltage drop 4230 4235 Heatsink overheat protection 4240 4245 Overload protection 4250 4255 4256 Overcurrent relay trip 5110...

Page 112: ...n the OC is in trouble 1 When an error occurs the error source and the error code appear on the display on the remote controller 2 Reset the error via the remote controller to start an emergency operation Precautions before servicing the unit When the OC is in trouble the OS temporarily takes over the OC s function and performs an emergency operation When this happens the indoor unit connection in...

Page 113: ...tted Permitted Permitted Permitted Normal Trouble OS failure pattern OS Emergency operation Maximum total capacity of indoor units Note 1 Capacity that matches the total capacity of the operable outdoor units OC OC failure pattern Trouble Trouble Trouble Normal Normal Normal Normal Normal Normal Cooling Heating Normal Normal Normal Trouble Trouble Trouble Trouble Trouble Trouble OS1 failure patter...

Page 114: ... on Outdoor Unit page 25 5 2 17 Control of IH energization without the compressor in operation not applicable to the P450 and P500 models IH is used to heat the compressor motor on the stopped outdoor unit to make liquid refrigerant in the compressor evaporate or to keep liquid refrigerant from flooding the compressor Initial power on after power is turned on Stays on for 12 hours and then transit...

Page 115: ...Error stop Error display Self holding of protection function Error command to outdoor unit Indoor unit LEV fully closed Refer to 5 3 2 1 Cooling operation Refer to 5 3 2 2 Heating operation Refer to 5 3 2 3 for dry operation Prohibition Prohibition Prohibition Dry display Heating display Cooling display Dry mode Heating mode Fan mode Fan display Fan operations Operation mode Cooling mode Operation...

Page 116: ...rding to the operation mode commanded by the indoor unit However when the outdoor unit is running a cooling operation come of the operating indoor units will stop or the operation of these indoor units will be prohibited even when the indoor unit mode is switched from fan mode to heating mode This also applies when the outdoor unit is running a heating operation Start Breaker turned on Operation c...

Page 117: ...tion Note 1 YES YES YES NO NO NO 4 way valve OFF 1 Inverter frequency control 2 Indoor unit LEV LEV1 control LEV2 fully opened 3 Solenoid valve control 4 Outdoor unit fan control 5 72C control Normal operation During test run mode Unit in the stopped state Indoor unit fan operation 1 Inverter output 0Hz 2 Indoor unit LEV LEV1 LEV2 rated opening 3 All solenoid valves OFF 4 Outdoor unit fan stop 5 7...

Page 118: ... 2 YES YES YES YES YES NO NO NO NO NO 1 Indoor outdoor unit fan control 2 Inverter frequency control 3 Indoor unit LEV LEV1 LEV2 control 4 Solenoid valve control 5 72C 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 0Hz 3 Indoor unit LEV LEV1 Fully closed LEV2 rated opening 4 All solenoid valves OFF 5 Ou...

Page 119: ...ankcase heater energized for P450 and P500 models 1 or 2 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 a...

Page 120: ...ller 121 6 5 1 MA Remote Controller PAR 31MAA 121 6 5 2 MA Remote Controller PAR 21MAA 122 6 5 3 MA Simple Remote Controller 124 6 6 Changing the Room Temperature Detection Position 127 6 7 Test Run Method 128 6 7 1 MA Remote Controller PAR 31MAA 128 6 7 2 MA Remote Controller PAR 21MAA 130 6 8 Operation Characteristics and Refrigerant Charge 131 6 9 Evaluating and Adjusting Refrigerant Charge 131...

Page 121: ... 112 HWE14040 GB ...

Page 122: ...y after installation or when the power is kept off for an extended period of time because of the accumulation of refrigerant in the compressor If insulation resistance reads at least 1 MΩ by turning on the main power and keeping it on for at least 12 hours the refrigerant in the compressor will evaporate and the insulation resistance will go up Do not measure the insulation resistance of the termi...

Page 123: ... indoor units using non polar ized 2 core cables Non polarized 2 core cable Remote controller connection Connectable to any indoor unit in the group Connectable anywhere on the indoor out door transmission line Interlock with the ventilation unit Each indoor unit can individually be in terlocked with a ventilation unit Set up via remote controller in the group Each indoor unit can individually be ...

Page 124: ... of registered information B Interlock settings Registration of LOSSNAY units to be interlocked with the indoor units and search and deletion of registered information Normal display Register the indoor unit to be controlled with the remote controller Bring up either the blinking display of HO by turning on the unit or the normal display by pressing the ON OFF button The display window must look l...

Page 125: ... together Bring up the address of the indoor unit and the address of the LOSSNAY to be interlocked on the display Select the address of the indoor unit to be registered by pressing button TEMP or to advance or go back through the addresses Select the address of the LOSSNAY unit to be interlocked by pressing button TIMER SET or to advance or go back through the interlocked unit addresses 7 8 C H Ma...

Page 126: ...e as the one in step Address of an interlocked LOSSNAY unit Address of another interlocked unit Bring up on the display the address of the LOSSNAY unit that was interlocked with the indoor unit in step With each pressing of button the address of 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 LOSSNA...

Page 127: ...ompletion of deletion will be displayed in the room temperature display window If a transmission error occurs the selected setting will not be deleted and the display will appear as shown below In this case repeat the steps above Displayed alternately Deletion error will be displayed in the room temperature display window If deletion is successfully completed will appear in the unit type display w...

Page 128: ...lay NOTE Normal display 4 5 PAR F27MEA ON OFF FILTER CHECK TEST TEMP TIMER SET CLOCK ON OFF 1 3 2 Press and hold the CHECK and buttons simultaneously for two seconds SET TEMP button SET TEMP button 3 Room temperature display selection mode Display or non display of room temperature Although the suction temperature is normally displayed on the remote controller the setting can be changed so that it...

Page 129: ...lection mode and an automatic operation cannot be performed The automatic operation mode is skipped in the function selection mode sequence The left figure shows the display that appears when the current temperature range setting is between 19 C and 30 C in the Cool Dry mode and the lower limit temperature is selected to be set 2 Temperature range setting for heating 4 Switch between the Lower and...

Page 130: ...ns select Set in the Function and press the SELECT button to save the settings Sending data will appear on the screen If the setting is successfully completed Setting completed will appear Lossnay IU address Lossnay address Collecting data Lossnay Cursor Address Select IU address Lossnay address Function Set Conf Del Lossnay Lossnay Return IU address Lossnay address IU address Lossnay address Send...

Page 131: ...ted 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 does not have a corresponding indoor ...

Page 132: ...ete the interlock setting between a LOSSNAY unit and the interlocked indoor unit from the remote controller that is connected to the indoor unit Find the address of the LOSSNAY to be deleted See section 2 Search Procedures and bring up the result of the search for both the indoor unit and LOSSNAY on the display Press the ON OFF button twice to delete the address of the LOSSNAY unit that is interlo...

Page 133: ...ntroller confirms the registered LOSSNAY addresses of the currently connected indoor units Registration confirmation result The indoor unit address and registered LOSSNAY address are displayed alternately Make this setting only when interlocked operation with LOSSNAY is necessary with CITY MULTI models ON OFF Indoor unit address and indoor unit display LOSSNAY address display and LOSSNAY display 1...

Page 134: ...ster the set indoor unit address and LOSSNAY address Registration end display The indoor unit address and IC and LOSSNAY address and LC are alternately displayed Registration error display If the address is not registered correctly the indoor unit address and and the registered LOSSNAY and are alternately displayed Cannot be registered because the registered indoor unit or LOSSNAY does not exist C...

Page 135: ...alternately displayed Confirmation end display When LOSSNAY is not connected Registered indoor unit address does not exist 3 Deletion procedure Use this procedure when you want to delete registration of indoor units connected by the remote controller and LOSSNAY Confirm see 2 Confirmation procedure the LOSSNAY you want to delete and display the indoor units and LOSSNAY confirmation results Press t...

Page 136: ...oard on the indoor unit is set to OFF To use the built in sensor on the remote controller set the SW1 1 on the controller board on the indoor unit to ON Some models of remote controllers are not equipped with a built in temperature sensor Use the built in temperature sensor on the indoor unit instead When using the built in sensor on the remote controller install the remote controller where room t...

Page 137: ...operation performance Depending on the outside air conditions the fan will rotate at low speed and maintains its rotation speed unless capacity shortage occurs The fan may stop or rotate in the reverse direction depending on the outside airflow this is normal Press the button to end the test run The screen will return to the Test run menu Step 1 Turn on the main power at least 12 hours before star...

Page 138: ...ddress can be copied and pasted to another unit at a different address Press the F3 button in Step 2 to copy the model name information of the unit at the selected address Press the F4 button in Step 2 to overwrite the model name information of the unit at the selected address 1 Step 4 Registering the serial number Select Serial No input in Step 1 2 above and then press the button Register the ser...

Page 139: ... Switch to cooling or heating operation by pressing the Operation Mode button Press the Fan Speed button Change the air flow direction by pressing the Vertical Air Direction button or the Louver button Confirm the operation of outdoor unit fan Confirm the operation of all interlocked equipment such as ventilation equipment Note 1 Refer to the following pages if an error code appears on the remote ...

Page 140: ...9 1 Refrigerant Overcharge and undercharge 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 6 9 2 Checking the Refrigerant Charge during Operation Operate...

Page 141: ...rged refrigerant in the outdoor unit kg 6 5 8 0 11 5 11 5 11 5 11 8 11 8 Amount of pre charged refrigerant in the outdoor unit lbs oz 14 6 17 11 25 6 25 6 25 6 26 1 26 1 Amount of added refrigerant kg 0 29x L1 0 2 x L2 0 12 x L3 0 06 x L4 0 024 x L5 α Amount of added refrigerant oz 3 1x L1 2 15 x L2 1 29 x L3 0 65 x L4 0 26 x L5 α Amount of added refrigerant kg 0 26x L1 0 18 x L2 0 11 x L3 0 054 x...

Page 142: ... 2 74 2 82 1 99 4 Total index of the outdoor units P500 P400S P450S P500S P550S P600S Maximum refrigerant charge 1 kg 45 9 45 0 45 9 47 0 51 3 53 9 Maximum refrigerant charge 1 lbs oz 101 4 99 4 101 4 103 10 113 2 118 14 Total index of the outdoor units P650S P700S P750S P800S P850S P900S Maximum refrigerant charge 1 kg 56 5 68 9 68 9 71 4 73 2 75 7 Maximum refrigerant charge 1 lbs oz 124 9 151 15...

Page 143: ... 10 m P40 P100 P125 P32 P63 3 5 3 5 0 0 kg 0 m x 0 26 kg m Additional refrigerant charge 0 0 50 x 0 11 60 x 0 054 10 x 0 021 12 5 12 45 kg Total length of liquid x 0 26 kg m 0 m x 0 18 kg m Total length of liquid x 0 18 kg m 50 m x 0 11 kg m Total length of liquid x 0 11 kg m 60 m x 0 054 kg m Total length of liquid x 0 054 kg m 10 m x 0 021 kg m Total length of liquid x 0 021 kg m CAUTION Charge ...

Page 144: ... amount of refrigerant is truly adequate TH3 TH6 on the outdoor unit is 5 C 9 F or above and SH on the indoor unit is between 5 and 15 C 9 and 27 F The refrigerant amount may seem adequate at the moment but may turn out to be inadequate later on TH3 TH6 on the outdoor unit is 5 C 9 F or less and SH on the indoor unit is 5 C 9 F or less Wait until the TH3 TH6 reaches 5 C 9 F or above and the SH of ...

Page 145: ... Note 2 Note 2 Note 2 Note 1 Gradually add refrigerant from the service port on the low pressure side Keep the unit running for 5 minutes after adjusting the refrigerant amount to determine its adequacy Keep the unit running for 5 minutes after adjusting the refrigerant amount to determine its adequacy Turn off SW4 922 on the OC Turn on SW4 922 on the OC Adjustment complete Note 4 Has the initial ...

Page 146: ...n operates at extra low speed for 5 minutes after it is turned on or until the pipe temperature reaches 35 C 95 F then 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 ...

Page 147: ... 325 325 325 SC LEV1 80 100 LEV2 2100 2100 Pressure High pressure after O S Low pressure before accumulator MPa psi 2 59 0 96 376 139 2 83 0 84 410 122 Section tempera tures Outdoor unit Discharge TH4 C F 69 156 74 165 Heat exchanger outlet TH3 44 111 46 115 Accumulator inlet 10 50 10 50 Accumulator outlet 10 50 10 50 SCC outlet TH6 24 75 26 79 Compressor inlet 17 63 14 57 Compressor shell bottom ...

Page 148: ...1 100 190 LEV2 2100 2100 Pressure High pressure after O S Low pressure before accumulator MPa psi 2 92 0 90 424 131 3 05 0 84 442 122 Section tempera tures Outdoor unit Discharge TH4 C F 73 163 82 180 Heat exchanger outlet TH3 40 104 45 113 Accumulator inlet 10 50 7 45 Accumulator outlet 10 50 7 45 SCC outlet TH6 20 68 25 77 Compressor inlet 15 59 19 66 Compressor shell bottom 42 108 38 100 Indoor...

Page 149: ... 190 LEV2 2100 2100 Pressure High pressure after O S Low pressure before accumulator MPa psi 3 18 0 84 461 122 3 31 0 84 480 122 Section tempera tures Outdoor unit Discharge TH4 C F 84 183 86 187 Heat exchanger outlet TH3 45 113 45 113 Accumulator inlet 7 45 7 45 Accumulator outlet 7 45 7 45 SCC outlet TH6 25 77 25 77 Compressor inlet 19 66 19 66 Compressor shell bottom 38 100 38 100 Indoor unit L...

Page 150: ...C LEV1 100 LEV2 2100 Pressure High pressure after O S Low pressure before accumulator MPa psi 2 76 0 93 400 135 Section tempera tures Outdoor unit Discharge TH4 C F 73 163 Heat exchanger outlet TH3 40 104 Accumulator inlet 10 50 Accumulator outlet 10 50 SCC outlet TH6 20 68 Compressor inlet 15 59 Compressor shell bottom 42 108 Indoor unit LEV inlet 21 70 Heat exchanger outlet 10 50 Heating operati...

Page 151: ... High pressure after O S Low pressure before accumula tor MPa psi 2 59 0 96 376 139 2 59 0 96 376 139 Section tempera tures Outdoor unit Discharge TH4 C F 69 156 69 156 Heat exchanger outlet TH3 44 111 44 111 Accumulator inlet 10 50 10 50 Accumulator outlet 10 50 10 50 SCC outlet TH6 24 75 24 75 Compressor inlet 17 63 17 63 Compressor shell bottom 47 117 47 117 Indoor unit LEV inlet 23 73 23 73 He...

Page 152: ...e after O S Low pressure before accumula tor MPa psi 2 59 0 96 376 139 2 83 0 84 410 122 Section tempera tures Outdoor unit Discharge TH4 C F 69 156 74 165 Heat exchanger outlet TH3 44 111 46 115 Accumulator inlet 10 50 10 50 Accumulator outlet 10 50 10 50 SCC outlet TH6 24 75 26 79 Compressor inlet 17 63 14 57 Compressor shell bottom 47 117 38 100 Indoor unit LEV inlet 23 73 25 77 Heat exchanger ...

Page 153: ...er O S Low pressure before accumula tor MPa psi 2 83 0 84 410 122 2 83 0 84 410 122 Section tempera tures Outdoor unit Discharge TH4 C F 74 165 74 165 Heat exchanger outlet TH3 46 115 46 115 Accumulator inlet 10 50 10 50 Accumulator outlet 10 50 10 50 SCC outlet TH6 26 79 26 79 Compressor inlet 14 57 14 57 Compressor shell bottom 38 100 38 100 Indoor unit LEV inlet 25 77 25 77 Heat exchanger outle...

Page 154: ...sure after O S Low pressure before accumula tor MPa psi 2 83 0 84 410 122 2 92 0 90 424 131 Section tempera tures Outdoor unit Discharge TH4 C F 74 165 73 163 Heat exchanger outlet TH3 46 115 40 104 Accumulator inlet 10 50 10 50 Accumulator outlet 10 50 10 50 SCC outlet TH6 26 79 20 68 Compressor inlet 14 57 15 59 Compressor shell bottom 38 100 42 108 Indoor unit LEV inlet 25 77 19 66 Heat exchang...

Page 155: ...after O S Low pressure before accumula tor MPa psi 2 83 0 84 410 122 3 05 0 84 442 122 Section tempera tures Outdoor unit Discharge TH4 C F 74 165 82 180 Heat exchanger outlet TH3 46 115 45 113 Accumulator inlet 10 50 7 45 Accumulator outlet 10 50 7 45 SCC outlet TH6 26 79 25 77 Compressor inlet 14 57 19 66 Compressor shell bottom 38 100 38 100 Indoor unit LEV inlet 25 77 17 63 Heat exchanger outl...

Page 156: ...essure after O S Low pressure before accumula tor MPa psi 2 92 0 90 424 131 3 05 0 84 442 122 Section tempera tures Outdoor unit Discharge TH4 C F 73 163 82 180 Heat exchanger outlet TH3 40 104 45 113 Accumulator inlet 10 50 7 45 Accumulator outlet 10 50 7 45 SCC outlet TH6 20 68 25 77 Compressor inlet 15 59 19 66 Compressor shell bottom 42 108 38 100 Indoor unit LEV inlet 19 66 17 63 Heat exchang...

Page 157: ...e after O S Low pressure before accumula tor MPa psi 3 05 0 84 442 122 3 05 0 84 442 122 Section tempera tures Outdoor unit Discharge TH4 C F 82 180 82 180 Heat exchanger outlet TH3 45 113 45 113 Accumulator inlet 7 45 7 45 Accumulator outlet 7 45 7 45 SCC outlet TH6 25 77 25 77 Compressor inlet 19 66 19 66 Compressor shell bottom 38 100 38 100 Indoor unit LEV inlet 17 63 17 63 Heat exchanger outl...

Page 158: ... pressure after O S Low pressure before accumula tor MPa psi 3 05 0 84 442 122 3 18 0 84 461 122 Section tempera tures Outdoor unit Discharge TH4 C F 82 180 84 183 Heat exchanger outlet TH3 45 113 45 113 Accumulator inlet 7 45 7 45 Accumulator outlet 7 45 7 45 SCC outlet TH6 25 77 25 77 Compressor inlet 19 66 19 66 Compressor shell bottom 38 100 38 100 Indoor unit LEV inlet 17 63 17 63 Heat exchan...

Page 159: ...sure after O S Low pressure before accumula tor MPa psi 3 05 0 84 442 122 3 31 0 84 480 122 Section tempera tures Outdoor unit Discharge TH4 C F 82 180 86 187 Heat exchanger outlet TH3 45 113 45 113 Accumulator inlet 7 45 7 45 Accumulator outlet 7 45 7 45 SCC outlet TH6 25 77 25 77 Compressor inlet 19 66 19 66 Compressor shell bottom 38 100 38 100 Indoor unit LEV inlet 17 63 17 63 Heat exchanger o...

Page 160: ...igh pressure after O S Low pressure before accumula tor MPa psi 3 18 0 84 461 122 3 31 0 84 480 122 Section tempera tures Outdoor unit Discharge TH4 C F 84 183 86 187 Heat exchanger outlet TH3 45 113 45 113 Accumulator inlet 7 45 7 45 Accumulator outlet 7 45 7 45 SCC outlet TH6 25 77 25 77 Compressor inlet 19 66 19 66 Compressor shell bottom 38 100 38 100 Indoor unit LEV inlet 17 63 17 63 Heat exc...

Page 161: ...ressure after O S Low pressure before accumula tor MPa psi 3 31 0 84 480 122 3 31 0 84 480 122 Section tempera tures Outdoor unit Discharge TH4 C F 86 187 86 187 Heat exchanger outlet TH3 45 113 45 113 Accumulator inlet 7 45 7 45 Accumulator outlet 7 45 7 45 SCC outlet TH6 25 77 25 77 Compressor inlet 19 66 19 66 Compressor shell bottom 38 100 38 100 Indoor unit LEV inlet 17 63 17 63 Heat exchange...

Page 162: ...fore accumulator MPa psi 2 83 0 84 2 92 0 90 3 18 0 84 410 122 424 131 461 122 Section tempera tures Outdoor unit Discharge TH4 C F 74 165 73 163 84 183 Heat exchanger outlet TH3 46 115 40 104 45 113 Accumulator inlet 10 50 10 50 7 45 Accumulator outlet 10 50 10 50 7 45 SCC outlet TH6 26 79 20 68 25 77 Compressor inlet 14 57 15 59 19 66 Compressor shell bottom 38 100 42 108 38 100 Indoor unit LEV ...

Page 163: ...psi 2 92 0 90 2 92 0 90 3 18 0 84 424 131 424 131 461 122 Section tempera tures Outdoor unit Discharge TH4 C F 73 163 73 163 84 183 Heat exchanger outlet TH3 40 104 40 104 45 113 Accumulator inlet 10 50 10 50 7 45 Accumulator outlet 10 50 10 50 7 45 SCC outlet TH6 20 68 20 68 25 77 Compressor inlet 15 59 15 59 19 66 Compressor shell bottom 42 108 42 108 38 100 Indoor unit LEV inlet 19 66 19 66 17 ...

Page 164: ...r MPa psi 2 92 0 90 3 05 0 84 3 18 0 84 424 131 442 122 461 122 Section tempera tures Outdoor unit Discharge TH4 C F 73 163 82 180 84 183 Heat exchanger outlet TH3 40 104 45 113 45 113 Accumulator inlet 10 50 7 45 7 45 Accumulator outlet 10 50 7 45 7 45 SCC outlet TH6 20 68 25 77 25 77 Compressor inlet 15 59 19 66 19 66 Compressor shell bottom 42 108 38 100 38 100 Indoor unit LEV inlet 19 66 17 63...

Page 165: ... psi 3 05 0 84 3 05 0 84 3 18 0 84 442 122 442 122 461 122 Section tempera tures Outdoor unit Discharge TH4 C F 82 180 82 180 84 183 Heat exchanger outlet TH3 45 113 45 113 45 113 Accumulator inlet 7 45 7 45 7 45 Accumulator outlet 7 45 7 45 7 45 SCC outlet TH6 25 77 25 77 25 77 Compressor inlet 19 66 19 66 19 66 Compressor shell bottom 38 100 38 100 38 100 Indoor unit LEV inlet 17 63 17 63 17 63 ...

Page 166: ...or MPa psi 3 05 0 84 3 05 0 84 3 31 0 84 442 122 442 122 480 122 Section tempera tures Outdoor unit Discharge TH4 C F 82 180 82 180 86 187 Heat exchanger outlet TH3 45 113 45 113 45 113 Accumulator inlet 7 45 7 45 7 45 Accumulator outlet 7 45 7 45 7 45 SCC outlet TH6 25 77 25 77 25 77 Compressor inlet 19 66 19 66 19 66 Compressor shell bottom 38 100 38 100 38 100 Indoor unit LEV inlet 17 63 17 63 ...

Page 167: ...a psi 3 05 0 84 3 18 0 84 3 31 0 84 442 122 461 122 480 122 Section tempera tures Outdoor unit Discharge TH4 C F 82 180 84 183 86 187 Heat exchanger outlet TH3 45 113 45 113 45 113 Accumulator inlet 7 45 7 45 7 45 Accumulator outlet 7 45 7 45 7 45 SCC outlet TH6 25 77 25 77 25 77 Compressor inlet 19 66 19 66 19 66 Compressor shell bottom 38 100 38 100 38 100 Indoor unit LEV inlet 17 63 17 63 17 63...

Page 168: ...ator MPa psi 3 05 0 84 3 31 0 84 3 31 0 84 442 122 480 122 480 122 Section tempera tures Outdoor unit Discharge TH4 C F 82 180 86 187 86 187 Heat exchanger outlet TH3 45 113 45 113 45 113 Accumulator inlet 7 45 7 45 7 45 Accumulator outlet 7 45 7 45 7 45 SCC outlet TH6 25 77 25 77 25 77 Compressor inlet 19 66 19 66 19 66 Compressor shell bottom 38 100 38 100 38 100 Indoor unit LEV inlet 17 63 17 6...

Page 169: ...r MPa psi 3 18 0 84 3 31 0 84 3 31 0 84 461 122 480 122 480 122 Section tempera tures Outdoor unit Discharge TH4 C F 84 183 86 187 86 187 Heat exchanger outlet TH3 45 113 45 113 45 113 Accumulator inlet 7 45 7 45 7 45 Accumulator outlet 7 45 7 45 7 45 SCC outlet TH6 25 77 25 77 25 77 Compressor inlet 19 66 19 66 19 66 Compressor shell bottom 38 100 38 100 38 100 Indoor unit LEV inlet 17 63 17 63 1...

Page 170: ...mulator MPa psi 3 31 0 84 3 31 0 84 3 31 0 84 480 122 480 122 480 122 Section tempera tures Outdoor unit Discharge TH4 C F 86 187 86 187 86 187 Heat exchanger outlet TH3 45 113 45 113 45 113 Accumulator inlet 7 45 7 45 7 45 Accumulator outlet 7 45 7 45 7 45 SCC outlet TH6 25 77 25 77 25 77 Compressor inlet 19 66 19 66 19 66 Compressor shell bottom 38 100 38 100 38 100 Indoor unit LEV inlet 17 63 1...

Page 171: ... 6 11 Standard Operation Data Reference Data 162 HWE14040 GB ...

Page 172: ...odes 4000 4999 182 7 6 1 Error Code 4102 182 7 6 2 Error Code 4106 183 7 6 3 Error Code 4109 183 7 6 4 Error Code 4115 184 7 6 5 Error Code 4116 184 7 6 6 Error Code 4121 185 7 6 7 Error Code 4124 186 7 6 8 Error Codes 4220 4225 4226 Detail Code 108 187 7 6 9 Error Codes 4220 4225 4226 Detail Code 109 188 7 6 10 Error Code 4220 Detail Code 110 189 7 6 11 Error Codes 4220 4225 4226 Detail Code 111 ...

Page 173: ...tdoor Unit OC 210 7 8 9 Error Code 6607 Error Source Address Indoor Unit IC 211 7 8 10 Error Code 6607 Error Source Address LOSSNAY LC 212 7 8 11 Error Code 6607 Error Source Address ME Remote Controller 213 7 8 12 Error Code 6607 Error Source Address System Controller 214 7 8 13 Error Code 6607 All Error Source Addresses 215 7 8 14 Error Code 6607 No Error Source Address 216 7 8 15 Error Code 660...

Page 174: ...2601 Water supply cutoff O page 180 3121 Out of range outside air temperature O page 181 4102 4152 Open phase O page 182 4106 Transmission power supply fault O page 183 4109 Fan operation status detection error O page 183 4115 Power supply signal sync error O page 184 4116 RPM error Motor error O O page 184 4121 4171 Function setting error O page 185 4124 Electric system not operate due to damper ...

Page 175: ...e 198 HIC bypass circuit outlet temperature TH2 O page 199 5103 1205 00 Temperature sensor fault Indoor unit gas side pipe temperature TH23 O page 198 OA processing unit gas side pipe temperature TH3 O page 198 Pipe temperature at heatex changer outlet TH3 O page 199 5104 1202 Temperature sensor fault OA processing unit intake air temperature TH1 O page 198 Outside temperature TH24 O page 198 Dete...

Page 176: ...O page 207 6601 Polarity setting error O page 207 6602 Transmission processor hardware error O O O O page 208 6603 Transmission line bus busy error O O O O page 209 6606 Communication error between device and transmission processors O O O O page 209 6607 No ACK error O O O O page 210 6608 No response error O O O O page 217 6831 MA controller signal reception error No signal reception O O page 218 ...

Page 177: ... Remote controller sensor fault O O page 230 7113 Function setting error improper connection of CNTYP O page 231 7117 Model setting error O page 232 7130 Incompatible unit combination O page 233 Error Code Prelimi nary error code Error prelim inary detail code Error code definition Searched unit Notes Outdoor unit Indoor unit LOSSNAY Remote controller The last digit Inverter system 0 or 1 Compress...

Page 178: ...refer to the following page s 8 9 Troubleshooting Inverter Problems page 264 Control board FAN board CN2 CN2A CN80 CN4 CN4A CN80 FAN board INV board CN82 CN2 CN83 CN43 Cause Check method and remedy 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...

Page 179: ...communication reception error 2 Error definition and error detection method Indoor controller board Abnormal if data cannot be read normally from the nonvolatile memory of the indoor controller board 3 Cause check method and remedy Cause Check method and remedy Defective indoor controller board Replace indoor controller board ...

Page 180: ...eration described in step 1 above will start 5 For 30 minutes after the stop the first stop or the second stop of the outdoor unit preliminary errors will be displayed on the LED display 3 Cause check method and remedy Cause Check method and remedy 1 Gas leak gas shortage Refer to the following page s 6 9 Evaluating and Adjusting Refrigerant Charge page 131 2 Overload operation Check operating con...

Page 181: ...diately before start up the operation immediately stops 3 Cause check method and remedy Cause Check method and remedy 1 Inner pressure drop due to a leakage Refer to the following page s 8 5 3 Comparing the Low Pressure Sensor Measurement and Gauge Pressure page 254 2 Low pressure sensor failure 3 Short circuited pressure sensor cable due to torn outer rubber 4 A pin on the male connector is missi...

Page 182: ...actuation failure Heating Perform a cooling or heating operation to check the oper ation Cooling Indoor unit LEV2 Heating Indoor unit LEV Refer to the following page s 8 8 Troubleshooting LEV Problems page 258 2 Closed refrigerant service valve Confirm that the refrigerant service valve is fully open 3 Short cycle on the indoor unit side Check the indoor units for problems and correct them if any ...

Page 183: ...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 Cause Check method and remedy 1 Inner pressure drop due to a leakage Refer to the following page s 8 5 1 Comparing the High Pressure Sensor Measurement and Gauge Pressu...

Page 184: ...of water leakage is also performed while 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 The liquid pipe temperature minus the inlet temperature is 10 C 18 F or less 3 Cause check method and...

Page 185: ... 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 The liquid pipe temperature minus the inlet temperature is 10 C 18 F or less 3 Cause check method and remedy Reference Cause Check method and remedy 1 Drain water drainage problem Clogged drain pump Clogged drain piping Backflow of drai...

Page 186: ...e same refrigerant circuit that are in any mode other than 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 sour...

Page 187: ...ns that are listed in item 4 above brings 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 stopp...

Page 188: ...t during the defrost cycle When the liquid temperature 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 Cause Check method and remedy 1 Faulty connector CN31 insertion 1 Check for connector connection failure Reinser...

Page 189: ...ater supply cutoff 2 Cause check method and remedy 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 ...

Page 190: ...splay needs to be canceled by setting the remote controller Outdoor temperature error 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 Cause Check method and remedy 1 Thermistor failure Check the...

Page 191: ...ut Confirm that the voltage at the CN3 connector is 198 V or above Check that the voltage across pins 3 and 5 on the noise filter CN4 connector is equal to or greater than 198 volts 3 Wiring failure Confirm that the voltage at the control board connector CNAC is 198 V or above If the voltage is below 198V check the wiring connection between the noise filter board CN3 noise filter board CN2 and con...

Page 192: ...method Transmission power reception failure 3 Cause One of the outdoor units stopped supplying power but no other outdoor units start supplying power 4 Check method and remedy Check the transmission power supply circuit on all outdoor units in a given refrigerant circuit for problems 8 10 2 Trouble shooting Problems with Outdoor Unit Transmission Power Supply Circuit page 278 7 6 3 Error Code 4109...

Page 193: ...play will appear 3 Cause check method and remedy Cause Check method and remedy 1 Power supply error Check the voltage of the power supply terminal block TB1 2 Noise filter problem Coil problem Circuit board failure Check the coil connections Check for coil burnout Confirm that the voltage at the CN3 connector is 198 V or above 3 Faulty wiring Check fuse F01 on the control board 4 Wiring failure Be...

Page 194: ...e check method and remedy Error source Cause Check method and remedy Outdoor unit 1 Dip switch setting error on the control board Check the SW6 1 setting on the control board 2 Connector connection error on the control board Check that nothing is connected to the connector CNAF on the control board 3 Control board failure Replace the control board if no problems are found with the two items above ...

Page 195: ...There is not 0V DC between CN1X1 and Replace the damper limit switch open There is not 5V DC between CN1X1 and Replace the damper limit switch close 4 If damper opens or closes and voltages in 3 are normal measure the voltage between CN1X1 and and the voltage between CN1Y1 and during the damper close by pressing VANE CONTROL button There is not 5V DC between CN1X1 and Replace the damper limit swit...

Page 196: ...he FT P and FT N terminals on the INV board while the inverter is stopped and if it is less than 420 V check the following items 1 Check the coil connections and for coil burnout on the noise filter 2 Check the wiring between the noise filter board and INV board 3 Check the connection to SCP1 and SC P2 on the INV board 4 Check the in rush current resistor value 5 Check the 72C resistance value 6 C...

Page 197: ... Between the noise filter board INV board and the Fan board 4 Check contents 4220 Replace the Fan board if no problems are found Check the voltage at CNVDC on the Fan board while the inverter is stopped and if it is less than 420 V check the following items 1 Check between noise filter board inverter board connector board and fan board 2 Check contents 4220 Replace the Fan board if no problems are...

Page 198: ... Error Codes 4220 4225 4226 Detail Code 111 112 1 Error code definition Logic error Detail code 111 112 2 Error definition and error detection method H W error If only the H W error logic circuit operates and no identifiable error is detected 3 Cause Check method and remedy In the case of 4220 In the case of 4225 and 4226 For inverter related error codes refer to the following page s 8 9 Troublesh...

Page 199: ...ction Circuit page 266 Refer to the following page s 8 9 3 Checking the Compressor for Ground Fault and Coil Resistance Problems page 266 Refer to the following page s 8 9 4 Checking the Inverter for Damage at No Load page 266 Refer to the following page s 8 9 5 Checking the Inverter for Damage during Com pressor Operation page 267 Refer to the following page s 8 9 11 Checking the Installation Con...

Page 200: ...error codes refer to the following page s 8 9 Troubleshooting Inverter Problems page 264 models TOH INV20Y 105 C INV30YC 94 C Cause Check method and remedy 1 Fan board failure Refer to the following page s 8 9 8 Checking the Fan Board Error Detection Circuit at No Load page 269 8 9 9 Checking the Fan Inverter for Damage at No Load page 270 8 9 10 Checking the Fan Inverter for Damage with Load page...

Page 201: ...Refer to the following page s 8 9 8 Checking the Fan Board Error Detection Circuit at No Load page 269 Refer to the following page s 8 9 9 Checking the Fan Inverter for Damage at No Load page 270 Refer to the following page s 8 9 10 Checking the Fan Inverter for Damage with Load page 271 2 Outdoor unit fan fault Check the outdoor unit fan for proper operation If there is a problem with fan operati...

Page 202: ...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 342 V or above 3 Inverter failure Refer to the following page s 8 9 Troubleshooting Inverter Problems page 264 4 Compressor failure Check that the compressor has not overheated during operation Check the refrigerant circuit oil return section Refer to the...

Page 203: ...66 8 9 4 Checking the Inverter for Damage at No Load page 266 8 9 5 Checking the Inverter for Damage during Compressor Operation page 267 8 9 11 Checking the Installation Conditions page 271 Check the IGBT module resistance value of the INV board if no problems are found 8 9 15 Troubleshooting Problems with IGBT Module page 273 2 The model selection switches SW5 3 5 8 on the outdoor unit are set i...

Page 204: ...mpressor for Ground Fault and Coil Resistance Problems page 266 2 Inverter output related Refer to the following page s 8 9 2 Checking the Inverter Board Error Detection Circuit page 266 8 9 3 Checking the Compressor for Ground Fault and Coil Resistance Problems page 266 8 9 4 Checking the Inverter for Damage at No Load page 266 8 9 5 Checking the Inverter for Damage during Compressor Opera tion p...

Page 205: ...d and remedy 1 Short circuited compressor Refer to the following page s 8 9 3 Checking the Compressor for Ground Fault and Coil Resistance Problems page 266 2 Output wiring Check for a short circuit Cause Check method and remedy 1 Short circuited fan motor Refer to the following page s 8 9 7 Checking the Fan Motor for Ground Fault and Coil Resistance Problems page 269 2 Output wiring Check for a s...

Page 206: ...erheat protection at startup 2 Error definition and error detection method When heatsink temperature THHS remains at or above TOH for 10 minutes or longer after inverter startup 3 Cause check method and remedy Same as 4230 error Cause Check method and remedy 1 Inverter output related items Refer to the following page s 8 9 2 Checking the Inverter Board Error Detection Circuit page 266 Refer to the...

Page 207: ... a short or an open is detected during thermostat ON the outdoor unit turns to anti restart mode 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 h...

Page 208: ...e intake of the thermistor is detected the first detection the outdoor unit stops turns to anti restart mode for 3 minutes and restarts when the detected temperature of the thermistor When a short or an open is detected again the second detection after the first restart of the outdoor unit the outdoor unit stops turns to anti restart mode for 3 minutes and restarts in 3 minutes when the detected t...

Page 209: ...r contact failure Check connector 5 Disconnected wire Check for wire 6 Thermistor input circuit failure on the control board Check the intake temperature of the sensor with the LED monitor When the temperature is far different from the actual temper ature replace the control board Short detection Open detection TH2 70 C 158 F and above 0 4kΩ 40 C 40 F and below 130kΩ TH3 110 C 230 F and above 0 4k...

Page 210: ...8MPa 14psi or less just before the restart the outdoor 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 Cause Check method and remedy 1 Cont...

Page 211: ... refer to the following page s 8 9 Troubleshooting Inverter Problems page 264 Cause Check method and remedy 1 Inverter open output phase Check the output wiring connections 2 Compressor failure Refer to the following page s 8 9 3 Checking the Compressor for Ground Fault and Coil Resistance Prob lems page 266 3 INV board failure Refer to the following page s 8 9 2 Checking the Inverter Board Error ...

Page 212: ...nverter Problems page 264 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 the following page s 8 9 4 Checking the Inverter for Damage at No Load page 266 8 9 5 Checking the Inverter for Damage during Compressor Opera tio...

Page 213: ...hin 10 seconds after the fan motor has gone into operation 3 Cause check method and remedy For inverter related error codes refer to the following page s 8 9 Troubleshooting Inverter Problems page 264 Cause Check method and remedy 1 Contact failure Check the wiring between CNCT4A and CNCT4B 2 Incorrect installation Check the wiring on the SC L terminal 3 INV board failure If the problem persists a...

Page 214: ...ected float switch open phase condition during operation 3 Cause check method and remedy 1 CN4F disconnection or contact failure Check for disconnection of the connector CN4F on the indoor unit control board Cause Check method and remedy 1 Outdoor factors Check that there is no wind gust or strong wind 2 Contact failure and faulty fan motor wiring Check the fan board connector CNINV and CNSNR for ...

Page 215: ... 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 7 8 2 Error Code 6202 1 Error code definition Remote controller board fault clock IC error 2 Error definition and error detection method This error is detected when the built in clock on the remote controller is not pro...

Page 216: ...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 them all turned off for at least five minutes and turn them back on When air conditioning units are ...

Page 217: ... control in case of grouped indoor units connected to different outdoor units or in case of the system connected with MELANS 4 Check method and remedy NO Tightly reconnect the male power supply connector to the female power supply switch connector CN40 YES YES YES YES YES YES NO NO NO NO Is the transmission line work performed while the power is on Check the power source of the indoor unit 198 264...

Page 218: ...icrocomputer for transmission The address attribute appeared on the display on the remote controller indicates the controller where an error oc curred 3 Cause check method and remedy 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 o...

Page 219: ...on the remote controller indicates the controller which did not provide the response ACK 3 Cause check method and remedy Cause Check method and remedy 1 Incidental cause 1 Turn off the power source of the outdoor unit and turn it on again 2 Contact failure of transmission line of OC or IC 2 If the error is accidental it will run normally If not check the causes 2 5 3 Decrease of transmission line ...

Page 220: ...ms All indoor units IC are experiencing problems Troubleshooting prob lems for indoor units A Troubleshooting problems for indoor units A Troubleshooting prob lems for indoor units A Troubleshooting prob lems for indoor units B Troubleshooting prob lems for indoor units B Troubleshooting problems for all units A Troubleshooting prob lems for all units A Cause Check method and remedy 1 Incidental c...

Page 221: ... and remedy 1 Troubleshooting problems for LOSSNAY units Error display ME remote controller RC MA remote controller MA Types of refrigerant systems Single refrigerant system Grouped operation of multiple refrigerant systems Troubleshooting problems for LOSSNAY units Troubleshooting problems for LOSSNAY units Troubleshooting problems for all units A Cause Check method and remedy 1 Incidental cause ...

Page 222: ...Single refrigerant system Grouped operation of mul tiple refrigerant systems Types of indoor units experiencing problems Part of the indoor units IC are experiencing problems All indoor units IC in the same system are experi encing problems All indoor units IC are experiencing problems Troubleshooting problems for ME remote controllers Troubleshooting prob lems for ME remote con trollers Troublesh...

Page 223: ...for system controllers Error display ME remote controller RC MA remote controller MA Type of unit controller in error Part of the ME remote con trollers RC are experi encing problems All indoor units IC in the same system are experi encing problems All ME remote controllers RC are experiencing problems Troubleshooting problems for system controllers Troubleshooting prob lems for all units B Troubl...

Page 224: ...e Cause col umn When no errors are present Indoor unit circuit board failure 4 The male power supply connectors on 2 or more outdoor units are connected to the female power supply switch connector CN40 for centralized control If an error occurs after the unit runs normally once the following causes may be considered Total capacity error 7100 Capacity code error 7101 Error in the number of connecte...

Page 225: ...door units have Use either of the following two methods for dele tion 2 Although the address of LOSSNAY has been changed af ter the interlock registration of LOSSNAY is made using ME remote controller the indoor unit is keeping the mem ory of the previous address 1 Address deletion by ME remote controller Delete unnecessary address information using the manual setting function of ME remote control...

Page 226: ...se of transmission line voltage 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 ...

Page 227: ... 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 set to ...

Page 228: ... 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 set to MAIN 5 Diagnose the remote controller describe...

Page 229: ...nected 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 controller...

Page 230: ... receives the 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...

Page 231: ...medy 1 Contact failure short circuit or miswiring converse wiring of in door outdoor unit connecting wire Check disconnecting or looseness of indoor outdoor unit connecting wire of indoor unit or outdoor unit Check all the units in case of twin triple quadruple indoor unit system 2 Defective transmitting receiving circuit of outdoor controller cir cuit board Turn the power off and on again to chec...

Page 232: ...utdoor unit communication error Transmitting error Abnormal if 1 receiving is detected 30 times continuously though indoor controller board has transmitted 0 3 Cause check method and remedy Cause Check method and remedy 1 Defective transmitting receiving circuit of indoor controller board Turn the power off and on again to check If abnormality generates again replace indoor controller board 2 Nois...

Page 233: ... wire Check disconnecting or looseness of indoor outdoor unit connecting wire of all indoor units or outdoor units 2 Defective transmitting receiving circuit of outdoor controller cir cuit board Turn the power off and on again to check If abnormality generates again replace indoor controller board or outdoor controller circuit board Note ther indoor controller board may have defect 3 Defective tra...

Page 234: ...d outdoor units 2 Diameter or length of indoor outdoor unit connecting wire is out of specified capacity Check diameter and length of indoor outdoor unit connecting wire Total wiring length 80 m including wiring connecting each indoor unit and between indoor and outdoor unit Also check if the connection order of flat ca ble is S1 S2 S3 3 2 or more outdoor units have refrigerant address 0 In case o...

Page 235: ...ode 3 Indoor unit Qj table 2 The model selection switches SW5 3 5 8 on the outdoor unit are set incorrectly Check the setting for the model selection switch on the outdoor unit Dipswitches SW5 3 5 8 on the outdoor unit control board 3 The outdoor unit and the auxiliary unit OS that is connected to the same system are not proper ly connected Confirm that the TB3 on the OC and OS are properly connec...

Page 236: ...2 on indoor unit board When the model name set by the switch 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 capacity code The capacity of the indoor unit can be con firmed by the self diagnosis function SW1 operation of the outdoor unit Outdoor unit 2 The model selection switches SW5 3 5 8 on the outdoor uni...

Page 237: ... will appear 3 Check whether the transmission line for the terminal block for cen tralized control TB7 is not con nected to the terminal block for the indoor outdoor transmission line TB3 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 Normall...

Page 238: ...f OC unit address The address of outdoor unit is not being set to 51 100 Check that the address of OC unit is set to 51 100 Reset the address if it stays out of the range while shutting the power source off Error source Cause Check method and remedy A remote controller for use with indoor units such as the MA remote controller is connected to the OA processing unit whose attribute is FU To operate...

Page 239: ...he power to the transmission booster is not cut off 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 Brok...

Page 240: ...d for proper con nection 2 Check the connector CNTYP5 on the control board for proper con nection 3 Check the settings of SW5 3 through SW5 6 on the control board Detail code 16 1 Check the connector CNTYP on the INV board for proper connec tion 2 Check the connector CNTYP5 on the control board for proper con nection 3 Check the settings of SW5 3 through SW5 6 on the control board 4 Check the wiri...

Page 241: ... 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 wiring between the control board and INV board Refer to the following page s 7 2 1 Error Code 0403 page 169 Detail code 0 1 5 6 1 Check the wiring between the control board and INV board Refer to the following page s 7 2 1 Error Code 0403 page 1...

Page 242: ...3 Error source cause check method and remedy Error source Cause Check method and remedy Outdoor unit The connected indoor unit is for use with R22 or R407C Incorrect type of indoor units are connected 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 Check the connected indoor unit model Check whet...

Page 243: ... 7 9 Error Code Definitions and Solutions Codes 7000 7999 234 HWE14040 GB ...

Page 244: ...or Configuration 63LS 254 8 6 Troubleshooting Solenoid Valve Problems 255 8 7 Troubleshooting Outdoor Unit Fan Problems 257 8 8 Troubleshooting LEV Problems 258 8 8 1 General Overview on LEV Operation 258 8 8 2 Possible Problems and Solutions 261 8 8 3 Coil Removal Instructions 262 8 9 Troubleshooting Inverter Problems 264 8 9 1 Inverter Related Problems and Solutions 264 8 9 2 Checking the Invert...

Page 245: ... 236 HWE14040 GB 8 11 Measures for Refrigerant Leakage 281 8 12 Compressor Replacement Instructions 283 8 13 Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit 285 ...

Page 246: ...cable Reversed connection 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 Two PAR 31MAA controllers are connected 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 ...

Page 247: ...tors on the multiple outdoor units are connected to the female power supply switch connector CN40 In the system to which the power supply unit for transmission lines is connected the male power supply connector is connect ed to the female power supply switch connector CN40 on the outdoor unit 4 Disconnected M NET transmission line on the indoor unit side 5 Disconnected wire between the terminal bl...

Page 248: ... indoor unit board CN2M or disconnected connector 6 Incorrect wiring for the MA remote controller Short circuited wire for the MA remote controller Disconnected wire for the MA remote controller No 2 and disconnected line to the terminal block Reversed daisy chain connection between groups Incorrect wiring for the MA remote controller to the terminal block for transmission line connection TB5 on t...

Page 249: ... fault with the equipment package indoor unit Does an error occur when the power is reset Check that no error occurs in other indoor units 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 PLE...

Page 250: ... 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 For details refer to the following page s 8 13 Troubleshooting Problems Using the LED Status Indica tors on the Outdoor Unit page 285 3 Check m...

Page 251: ...1 Check LED1 on the 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 for self diagnosis Check voltage of the power supply terminal on the indoor unit AC220V Check the fuse on the circuit board Melted Check 200V circuit for short circuit and ground fault Check the connection of the connector Check the ...

Page 252: ...B7 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 contro...

Page 253: ...nits 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 ...

Page 254: ...ad the SW settings refer to the follow ing page s 9 1 1 How to Read the LED page 289 2 Check temperature difference between the evaporat ing temperature Te and the target evaporating tem perature Tem with self diagnosis LED Note Higher Te than Tem causes insufficient capacity SW4 setting SW6 10 OFF For how to read the SW settings refer to the follow ing page s 9 1 1 How to Read the LED page 289 No...

Page 255: ...ng and Adjusting Refrigerant Charge page 131 7 Clogging by foreign object Check the temperature difference between in front 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 L...

Page 256: ...ge 253 Note Higher inlet pressure by the high pressure sensor than the actual pressure causes insufficient capac ity SW4 setting SW6 10 OFF For how to read the SW settings refer to the fol lowing page s 9 1 1 How to Read the LED page 289 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 in...

Page 257: ...Change 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 ...

Page 258: ...lay with SW4 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 SW4 to check whether the freeze proof operation runs properly and check the temperature 4 Thermistor failure Refer to the following page s 9 LED Status Indica tors on the Outdoor Unit Circuit Board ...

Page 259: ...d of the transmission line is grounded 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 T...

Page 260: ...grounding is provided the noise on the transmission 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 pow...

Page 261: ...n line and the communication 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 con...

Page 262: ...igh 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 high p...

Page 263: ... 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 pressure with the self diagnosis LED1 1 When the pre...

Page 264: ...ntake and the discharge temperature for the 4 way valve to check whether the valve has no faults and the electricity runs between where and where Do not touch the pipe when checking the temperature as the pipe on the oil separator side will be hot Do not give an impact from outside as the outer hull will be deformed leading to the malfunction of the inner valve 2 In case of 21S4b 4 way switching v...

Page 265: ...itching sound During the cooling mode SV5b and 21S4b SV5c and 21S4c are switched simultaneously which may make it difficult to check for proper operation of the SV5b or SV5c by listening for the switching sound If this is the case the temperature before and after SV5b or SV5c can be used to determine if the refrigerant is the pipe 5 In the case of SV9 Solenoid valve This solenoid valve is a switch...

Page 266: ...when the indoor unit operation capacity is low the revolution of the fan may change If the fan does not move or it vibrates Fan board problem or fan motor problem is suspected When checking the fan motor for problems by shutting down the power be sure to disconnect the motor wire from the fan board If a short circuited fan board malfunctions it will keep the fan motor from rotating smoothly For de...

Page 267: ...oor unit control board and the LEV Indoor unit Linear expansion valve 2 Outdoor unit control board and the LEV Outdoor unit Linear expansion valve Note The connector numbers on the intermediate connector and the connector on the control board differ Check the color of the lead wire to judge the number Control board Drive circuit LEV M 5 5 2 2 1 1 3 3 4 4 6 6 DC12V Red Intermediate connector Brown ...

Page 268: ...on the indoor unit circuit board sends a 2200 pulse signal to the indoor unit LEV and a 3200 pulse signal to the outdoor unit LEV to determine the valve position and always brings the valve to the position as indicated by A in the diagram When the valve operates smoothly no sound from LEV or no vibration occurs however when the pulses change from E to A in the chart or the valve is locked a big so...

Page 269: ... 4 3 2 1 8 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 vibrates Output phase number Output state When the power is turned on the valve closing signal of 520 pulses will be output from the indoor board to LEV to fix the valve position It must be fixed at point A Pulse signa...

Page 270: ...is normal Replace the LEV coils Indoor Measure the resistance between coils red white red orange red yellow red blue with a tester When the resistance is in the range of 100Ω 10 the LEV is normal Replace the LEV coils Outdoor LEV2a LEV2b Measure resistance between the coils red white red orange brown yellow brown blue using a tester They are normal if resistance is 46Ω 3 Replace the LEV coils Outd...

Page 271: ...ut without the body gripped undue force will be applied and the pipe will be bent 3 Installing the coils Fix the body tightly at the bottom Part A in the figure so that the body will not move then insert the coils from the top and insert the coil stopper securely in the pipe on the body Hold the body when pulling out the coils to prevent so that the pipe will not be bent If the coils are pushed wi...

Page 272: ...king that the stopper is re moved pull up and out the coil When removing the coil hold the LEV body securely to prevent undue force from being placed on the pipe and bending the pipe 3 Installing the coil Securely hold the bottom of the LEV section A in the figure insert the coil from above and turn the coil until the coil stopper is properly installed on the LEV body When removing the coil hold t...

Page 273: ...ard Before connecting or disconnecting connectors make sure that the outdoor unit fans are stopped and that the voltage of the main circuit capacitor is 20 VDC or below If the outdoor unit fan is turned by strong winds the main circuit capacitor will be energized and poses an electric shock hazard Refer to the wiring diagram name plate for details 3 To connect wiring to TB7 check that the voltage ...

Page 274: ... motor shakes violently at all times or makes an abnormal sound Check the inverter frequency on the LED monitor If the frequency indi cates that the units are in operation refer to the following page s 8 9 8 Checking the Fan Board Error Detection Circuit at No Load page 269 8 9 9 Checking the Fan Inverter for Damage at No Load page 270 8 9 10 Checking the Fan Inverter for Damage with Load page 271...

Page 275: ...or If there is none replace the compres sor 2 Compressor coil resistance failure Coil resistance value of 0 72 Ω 20 C 68 F P200 P250 models Coil resistance value of 0 32 Ω 20 C 68 F P300 P350 models Coil resistance value of 0 30 Ω 20 C 68 F P400 model Coil resistance value of 0 43 Ω 20 C 68 F P450 P500 models Replace the compressor Items to be checked Phenomena Remedy 1 Remove power supply 1 Inver...

Page 276: ...rigerant is present in the compressor and that there is no liquid backflow Go to d when the problem per sists after compressor startup was repeated several times d Check that there is a pressure dif ference between high and low pressures after compressor start up Check the high pressure with LED monitor for changes Replace the compressor if there is no pressure difference the com pressor may be lo...

Page 277: ...n time after energizing the com pressor or the heater If normal operation is restored check the belt heater for problems b Check that there is a pressure dif ference between high and low pressures after compressor start up Check the high pressure with LED monitor for changes Replace the compressor if there is no pressure difference the com pressor may be locked c Check for interphase voltage im ba...

Page 278: ... the inverter board b If the problem persists after replacing the inverter board replace the DCL 3 An overvoltage error occurs after converter circuit goes into opera tion Error code 4220 Detail code 109 110 112 a If the problem persists after startup re place the inverter board b If the problem persists after replacing the inverter board replace the DCL 4 No problems were found with items 1 throu...

Page 279: ... Disconnect the connector CNINV from the fan board 2 Less than 5V unbalance in the wir ing Change fan board 3 Set fan board switch SW1 1 to ON 3 No unbalanced voltage in the wiring After 30 second detail code 132 is produced and the system stops Normal After checking return SW1 CNINV 4 Turn on breaker 5 Operate unit After about 30 seconds under no load with constant voltage output the code below w...

Page 280: ...esn t re solve issue change fan motor 4 Sensor error during operation Check code 5305 5306 Detail code 132 133 a Check for gusts or windy conditions b If no issues with wind but the error is still present change Fan board c Change fan motor if Fan board change doesn t resolve issue 5 Voltage overload error Check code 4225 4226 Detail code 109 a Check for gusts or windy conditions b Change Fan boar...

Page 281: ...9 14 Sim ple Check on Inverter Circuit Compo nents page 273 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 Searc...

Page 282: ...ose 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 Part name Judgment method IGBT module Refer to the following page s 8 9 15 Troubleshooting Problem...

Page 283: ...ent value reference Black SC P1 FT N SC L1 SC L2 SC L3 Red SC P1 5 200 Ω 5 200 Ω 5 200 Ω FT N SC L1 5 200 Ω SC L2 5 200 Ω SC L3 5 200 Ω Black SC P2 FT N SC U SC V SC W Red SC P2 5 200 Ω 5 200 Ω 5 200 Ω FT N SC U 5 200 Ω SC V 5 200 Ω SC W 5 200 Ω SC U SC W SC V FT N SC P1 SC P2 SC L1 SC L2 SC L3 ...

Page 284: ...gment value reference Black SC L1 SC L2 SC L3 SC B SC L FT R21 SC N Red SC L1 5 200 Ω SC L2 5 200 Ω SC L3 5 200 Ω SC B SC L 5 200 Ω 5 200 Ω 5 200 Ω FT R21 5 200 Ω SC N Black FT R21 SC N SC U SC V SC W Red FT R21 5 200 Ω 5 200 Ω 5 200 Ω SC N SC U 5 200 Ω SC V 5 200 Ω SC W 5 200 Ω SC L1 SC L SC U SC L2 SC L3 SC V SC W SC P SC N FT R21 SC B ...

Page 285: ...ler Terminal block for transmission line connection 17 30 VDC 380 415 VAC 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 16 V ...

Page 286: ... Control board DC DC converter DC DC converter DC DC converter Detection circuit for the power supply to the transmission line Detection circuit for the power supply to the transmission line M NET board Microcomputer Microcomputer Microcomputer Microcomputer 30V Power supply Relay drive circuit Relay 5V Power supply 5V Power supply 5V Power supply 5V Power supply 12V Power supply 16V Power supply ...

Page 287: ...r disconnection Check for shorted transmission line or power feed collision for centralized control Replace the control board Check the voltage between No 1 and No 2 pins of the CN102 on the M NET board for the transmission line Check the voltage between No 1 and No 3 pins of the noise filter CN4 Check the voltage between No 1 and No 3 pins of the noise filter CN5 Check the noise filter F4 fuse Ch...

Page 288: ...N104 and CN107 and then replace F3 then turn the power on Fix the wiring and connector disconnection Check for shorted transmission line or power feed collision for centralized control Replace the control board Check the voltage between No 1 and No 2 pins of the CN102 on the M NET board for the transmission line Check the voltage between No 1 and No 4 pins of the CN104 on the capacitor board for t...

Page 289: ...64 VAC 198 264 VAC Check the voltage between L3 and N at the power supply terminal block TB1 Replace the M NET board Replace the noise filter Replace the noise filter Check and fix any power supply wiring and main power supply problems found Turn on the power again ...

Page 290: ...units are performing a cooling operation 2 Check the values of Tc and TH6 To display the values on the LED screen use the self diagnosis switch SW4 when SW6 10 is set to OFF on the outdoor unit control board 1 When Tc TH6 is 10 C 18 F or more See the next item 3 2 When Tc TH6 is less than 10 C 18 F After the compressor stops collect the refrigerant inside the system repair the leak perform evacuat...

Page 291: ...W3 1 on the outdoor control board is ON 2 Check that all the indoor units are stopped 3 Close the service valves BV1 and BV2 4 Collect the refrigerant that remains inside the indoor unit and optional unit Do not discharge refrigerant into the at mosphere when it is collected 5 Repair the leak 6 After repairing the leak perform evacuation of the extension pipe for the indoor unit and optional unit ...

Page 292: ...6 to remove the compressor components and replace the compressor Reassemble them in the reverse order after replacing the compressor 1 Remove both the top and bottom service panels front panels 3 Remove the wires that are secured to the frame and remove the frame Electric wiring Frame Service panel Control box Compressor cover front 2 Remove the control box and the compressor cover front ...

Page 293: ...he compressor cover top Compressor cover right Protection for the sealing 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 ...

Page 294: ...8 2 If the LED error display becomes lit when the power is turned on with all the connectors on the control board except CNDC disconnected 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...

Page 295: ... 8 13 Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit 286 HWE14040 GB ...

Page 296: ...apter 9 LED Status Indicators on the Outdoor Unit Circuit Board 9 1 LED Status Indicators 289 9 1 1 How to Read the LED 289 9 1 2 Initial LED Display 290 9 1 3 Clock Memory Function 291 9 2 LED Status Indicators Table 292 ...

Page 297: ... 288 HWE14040 GB ...

Page 298: ...and temperature are examples of numerical values and operating conditions and the on off status of solenoid valve are examples of flag display SW4 10 is set to 0 on the LED Status Indicators Table In the example above 1 through 9 are set to OFF and 10 is set to ON 1 Display of numerical values Example When the pressure data sensor reads 18 8kg cm2 Item No 58 The unit of pressure is in kg cm2 Use t...

Page 299: ... if the circuit board has failed How to convert HP capacity to Model name HP capacity is the capacity of outdoor unit that is shown on LED display at initial setting Please refer to the following table to covert from HP capacity to Model name No Item Display Remarks 1 Software version 0103 Version 1 03 2 Refrigerant type 410 R410A 3 Model and capacity H 20 Cooling Heating 20 HP For the first few m...

Page 300: ... off When the power 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 AG 150A adjusts the time once a day When the system controller is connected the time will be automatically updated to the correct current time ...

Page 301: ...00000 Check error display 3 Including IC and BC 0000 to 9999 Address and error codes highlighted B If no errors are detected appears on the dis play 3 1100000000 Relay out put display 2 Top 21S4a SV10 CH11 SV1a SV11 A A Bottom 21S4b SV5b 4 0010000000 Relay out put display 3 Top 21S4c SV9 Power sup ply for indoor transmis sion line A A Bottom 7 1110000000 Special control Retry opera tion Emergency ...

Page 302: ...nit No 22 Unit No 23 Unit No 24 Bottom Unit No 25 Unit No 26 Unit No 27 Unit No 28 Unit No 29 Unit No 30 Unit No 31 Unit No 32 18 0100100000 Top Unit No 33 Unit No 34 Unit No 35 Unit No 36 Unit No 37 Unit No 38 Unit No 39 Unit No 40 Bottom Unit No 41 Unit No 42 Unit No 43 Unit No 44 Unit No 45 Unit No 46 Unit No 47 Unit No 48 19 1100100000 Top Unit No 49 Unit No 50 Bottom 20 0010100000 Indoor unit...

Page 303: ...00 Outdoor unit control mode Stop Thermo OFF Abnormal stop Scheduled control Initial start up Defrost Oil balance Low fre quency oil recovery A A 43 1101010000 Warm up mode Refrigerant recovery Continuous heating 2 Continuous heating 1 A A 45 1011010000 TH4 99 9 to 999 9 A A The unit is C 46 0111010000 TH3 99 9 to 999 9 A A 47 1111010000 TH7 99 9 to 999 9 A A 48 0000110000 TH6 99 9 to 999 9 A A 49...

Page 304: ...ompressor 92 0011101000 Number of times error occurred during crank case heating by com pressor motor 0000 to 9999 A A Number of times INV er ror occurred during IH crankcase heating by compressor motor 93 1011101000 All AK OC OS 0000 to 9999 B 94 0111101000 AK 0000 to 9999 A A 95 1111101000 FAN1 0000 to 9999 A A Fan output 96 0000011000 Fan inverter output rpm FAN1 0000 to 9999 A A rpm 97 1000011...

Page 305: ...1000 Backup mode Abnormal pressure rise High pres sure drop Low pres sure drop Abnormal Td rise A A Stays lit for 90 seconds after the completion of backup control 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 129 1000000100 Integrated operation ti...

Page 306: ...details of inverter 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 in...

Page 307: ...il recovery A A 209 1000101100 Warm up mode Refrigerant recovery Continuous heating 2 Continuous heating 1 A A 211 1100101100 Relay output display 1 Lighting Comp in op eration 72C OC Always lit A A 212 0010101100 Relay out put display 2 Lighting Top 21S4a SV10 CH11 SV1a SV11 A A Bottom 21S4b SV5b 213 1010101100 Relay out put display 3 Lighting Top 21S4c SV9 Lit while power to the indoor units is ...

Page 308: ...quency of each unit 0000 to 9999 A A 259 1100000010 COMP frequency 0000 to 9999 A A 262 0110000010 COMP operating fre quency 0000 to 9999 A A The unit is rps 264 0001000010 All AK OC OS 0000 to 9999 B 265 1001000010 AK 0000 to 9999 A A 266 0101000010 FAN1 0000 to 9999 A A Fan inverter output 267 1101000010 Fan inverter output rpm FAN1 0000 to 9999 A A rpm 268 0011000010 FAN2 0000 to 9999 A A Fan i...

Page 309: ...s 0000 to 9999 A A 294 0110010010 COMP number of start stop events Upper 4 digits 0000 to 9999 A A Count up at start up The unit is Time 295 1110010010 COMP number of start stop events Lower 4 digits 0000 to 9999 A A 300 0011010010 Integrated operation time of compressor for rotation purpose 0000 to 9999 B The unit is h Error history No SW4 When SW6 10 is set to OFF Item Display Unit A B 1 Remarks...

Page 310: ...6 10 is set to OFF Item Display Unit A B 1 Remarks 1234567890 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 OC OS 301 1011010010 Power supply unit OC OS 1 OS 2 Address B 302 0111010010 Start up unit OC OS 1 OS 2 Address B 1 A The condition of either OC or OS is displayed individually B The condition of the entire refrigerant system is displayed ...

Page 311: ...Address 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...

Page 312: ... capacity 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...

Page 313: ...400 0000100110 IC50 Address capacity code 0000 to 9999 0000 to 9999 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 SW4 When SW6 10 is set to OFF Item Display Unit A B 1 Remarks 1234567890 L...

Page 314: ...temperature 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 99...

Page 315: ...43 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 IC49Suction temperature 99 9 to 999 9 457 1001001110 IC50 Suction temperature ...

Page 316: ... temperature 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 Liqui...

Page 317: ...00 0010111110 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 9...

Page 318: ...l A A 513 1000000001 IC FU address Count up display of number of connected units B 514 0100000001 RC 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 1 A The conditio...

Page 319: ...4 0110100001 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 IC...

Page 320: ...pipe temperature 99 9 to 999 9 559 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 temperatur...

Page 321: ... to 999 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 ...

Page 322: ... to 999 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 ...

Page 323: ... to 999 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 ...

Page 324: ... to 999 9 661 1010100101 IC39SC 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 ...

Page 325: ...our minute 693 1010110101 Time of error detection 2 2 00 00 to 99 12 1 to 31 Year and month and date alternate display 694 0110110101 Time of error detection 3 00 00 to 23 59 Hour minute 695 1110110101 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 detectio...

Page 326: ...100001101 Time of error 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 backu...

Page 327: ...EV opening 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 I...

Page 328: ...LEV opening 0000 to 9999 755 1100111101 IC42 LEV opening 0000 to 9999 756 0010111101 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 ...

Page 329: ... 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 791 1110100011 IC28 Operation mode 792 0001100011 IC29 Operation mode 793 1001100011 IC30 Operation...

Page 330: ...ration 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 filter 0000 to 9999 819 1100110011 IC6 filter 0000 to 9999 820 0010110011 ...

Page 331: ...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 0000101011 IC35 filter 0000 ...

Page 332: ...ter 0000 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 SW4 When SW6 10 is set to OFF Item Display Unit A B 1 Remarks 1234567890 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 OC OS 1 ...

Page 333: ... 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 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 884 0010111011 Fan board address 5 reset counter 0 to 254 A A The unit is time 885 1010111011 Fan board address 6 reset counter 0 to 254 A A 1 A The condition of eith...

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