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FILE NO.

SERVICE MANUAL

1

2

3

4

5

Section

85464849143001

REFERENCE NO. 

SM

830043

SPW-T253G56, SPW-T253GS56  ⁄ SPW-C253G5 (/M), SPW-C253G8 (/M)
SPW-T303G56, SPW-T303GS56 ⁄ SPW-C303G5 (/M)
SPW-T363G56, SPW-T363GS56  ⁄ SPW-C363G5 (/M), SPW-C363G8 (/M)
SPW-T483G56, SPW-T483GS56 ⁄ SPW-C483G8 (/M)

SPLIT SYSTEM AIR CONDITIONER

0409_C_S

SPW-C363G5 SPW-C363G5/M
SPW-C363G8 SPW-C363G8/M
SPW-C483G8 SPW-C483G8/M

0408_C_S

SPW-C253G5 SPW-C253G5/M
SPW-C253G8 SPW-C253G8/M
SPW-C303G5 SPW-C303G5/M

SPW-T253G56
SPW-T253GS56
SPW-T303G56
SPW-T303GS56
SPW-T363G56
SPW-T363GS56
SPW-T483G56
SPW-T483GS56

  INDOOR MODEL No.

PRODUCT CODE No.

OUTDOOR MODEL No.

PRODUCT CODE No.

SPW-T253G56

854 012 50

SPW-C253G5

854 012 22

SPW-C253G5/M

854 012 65

SPW-T253GS56

854 012 54

SPW-C253G8

854 012 23

SPW-C253G8/M

854 012 68

SPW-T303G56

854 012 51

SPW-C303G5

854 012 24

SPW-T303GS56

854 012 55

SPW-C303G5/M

854 012 69

SPW-T363G56

854 012 52

SPW-C363G5

854 012 25

SPW-C363G5/M

854 012 66

SPW-T363GS56

854 012 56

SPW-C363G8

854 012 26

SPW-C363G8/M

854 012 70

SPW-T483G56

854 012 53

SPW-C483G8

854 012 27

SPW-T483GS56

854 012 57

SPW-C483G8/M

854 012 67

NOTE) Models which does not have the alphabet “ /M” behind outdoor Model No. comply

with the European regulations.

Indoor Unit

Outdoor Unit

Summary of Contents for SPW-T483GS56 ? SPW-C483G8 (/M)

Page 1: ...63G56 SPW T363GS56 SPW T483G56 SPW T483GS56 INDOOR MODEL No PRODUCT CODE No OUTDOOR MODEL No PRODUCT CODE No SPW T253G56 854 012 50 SPW C253G5 854 012 22 SPW C253G5 M 854 012 65 SPW T253GS56 854 012 54 SPW C253G8 854 012 23 SPW C253G8 M 854 012 68 SPW T303G56 854 012 51 SPW C303G5 854 012 24 SPW T303GS56 854 012 55 SPW C303G5 M 854 012 69 SPW T363G56 854 012 52 SPW C363G5 854 012 25 SPW C363G5 M 8...

Page 2: ...ean up the site when finished servicing Don t forget to check that no metal scraps or bits of wiring have been left inside the unit IMPORTANT Please Read Before Starting This air conditioning system meets strict safety and operating standards As the installer or service person it is an important part of your job to install or service the system so it operates safely and efficiently For safe instal...

Page 3: ...n go directly to the procedures and information he needs the less experienced technician will better understand what to do even before he arrives on the job and therefore be better able to work by himself as well as assist the more experienced technician TABLE OF CONTENTS 1 SPECIFICATIONS 7 1 1 Unit Specifications 8 1 2 Major Component Specifications 14 A Indoor Unit 14 B Outdoor Unit 18 1 3 Other...

Page 4: ...Troubleshooting 56 4 2 A Sensor is Defective 67 4 3 Operation of Major Electrical Parts 67 4 4 Checking the Electrical Components 68 5 INSTRUCTION MANUAL 73 5 1 Wired Remote Controller RCS T251G 74 5 2 Wireless Remote Controller RCS 5PS3E 87 ...

Page 5: ...ation to help you set up and maintain the unit When this unit is not working properly and the cause is not known you can use the procedures in Section 3 Servicing Procedures to find the problem fix it and restore the unit to its proper functioning This air conditioner has many helpful self diagnostic features to help you identify problem areas quickly So you will be ready when a problem happens we...

Page 6: ... 6 SM830043 ...

Page 7: ...2 Major Component Specifications 14 A Indoor Unit 14 B Outdoor Unit 18 1 3 Other Component Specifications 21 A Indoor Unit 21 B Outdoor Unit 22 1 4 Dimensional Data 23 A Indoor Unit 23 B Outdoor Unit 24 1 5 Refrigerant Flow Diagram 26 1 6 Operating Range 27 1 ...

Page 8: ...ration sound Indoor Hi Me Lo dB A 45 41 37 Outdoor Hi dB A 53 REFRIGERANT TUBING Limit of tubing length m ft 40 131 Limit of tubing length at shipment m ft 15 49 Limit of elevation difference m ft Outdoor unit is higher than indoor unit 40 131 between the two units Outdoor unit is lower than indoor unit 25 82 Refrigerant tube Narrow tube mm in 6 35 1 4 outer diameter Wide tube mm in 15 88 5 8 Refr...

Page 9: ...ation sound Indoor Hi Me Lo dB A 46 42 37 Outdoor Hi dB A 53 REFRIGERANT TUBING Limit of tubing length m ft 40 131 Limit of tubing length at shipment m ft 15 49 Limit of elevation difference m ft Outdoor unit is higher than indoor unit 40 131 between the two units Outdoor unit is lower than indoor unit 25 82 Refrigerant tube Narrow tube mm in 6 35 1 4 outer diameter Wide tube mm in 15 88 5 8 Refri...

Page 10: ...ation sound Indoor Hi Me Lo dB A 47 43 39 Outdoor Hi dB A 54 REFRIGERANT TUBING Limit of tubing length m ft 50 164 Limit of tubing length at shipment m ft 15 49 Limit of elevation difference m ft Outdoor unit is higher than indoor unit 50 164 between the two units Outdoor unit is lower than indoor unit 30 98 Refrigerant tube Narrow tube mm in 6 35 1 4 outer diameter Wide tube mm in 15 88 5 8 Refri...

Page 11: ...ion sound Indoor Hi Me Lo dB A 45 41 37 Outdoor Hi dB A 53 REFRIGERANT TUBING Limit of tubing length m ft 40 131 Limit of tubing length at shipment m ft 15 49 Limit of elevation difference m ft Outdoor unit is higher than indoor unit 40 131 between the two units Outdoor unit is lower than indoor unit 25 82 Refrigerant tube Narrow tube mm in 6 35 1 4 outer diameter Wide tube mm in 15 88 5 8 Refrige...

Page 12: ...sound Indoor Hi Me Lo dB A 47 43 39 Outdoor Hi dB A 54 REFRIGERANT TUBING Limit of tubing length m ft 50 164 Limit of tubing length at shipment m ft 15 49 Limit of elevation difference m ft Outdoor unit is higher than indoor unit 50 164 between the two units Outdoor unit is lower than indoor unit 30 98 Refrigerant tube Narrow tube mm in 9 52 3 8 outer diameter Wide tube mm in 19 05 3 4 Refrigerant...

Page 13: ...d Indoor Hi Me Lo dB A 48 44 40 Outdoor Hi dB A 56 REFRIGERANT TUBING Limit of tubing length m ft 50 164 Limit of tubing length at shipment m ft 15 49 Limit of elevation difference m ft Outdoor unit is higher than indoor unit 50 164 between the two units Outdoor unit is lower than indoor unit 30 98 Refrigerant tube Narrow tube mm in 9 52 3 8 outer diameter Wide tube mm in 19 05 3 4 Refrigerant amo...

Page 14: ...30 V High rpm 4 1 198 Coil resistance Ω BRN WHT 175 1 ORG YEL 70 9 Ambient temperature 20 C WHT VLT 43 6 YEL PNK 15 6 VLT ORG 27 0 Safety device Operating temperature Open C 130 5 C Close C Differential 15 deg min Run capacitor VAC µF 440 V 2 5 µF Heat exchanger Coil Aluminum plate fin Copper tube Rows fin pitch mm 3 1 7 Face area m2 0 170 Auto louver motor MC8 D Auto louver motor Raterd V Hz W rp...

Page 15: ...40 W Source 220 230 240 V 1 phase 50 Hz No of pole r p m 230 V High rpm 4 906 Coil resistance Ω BRN WHT 119 4 YEL PNK 55 3 Ambient temperature 20 C WHT VLT 29 2 VLT YEL 14 5 Safety device Operating temperature Open C 130 5 C Close C Differential 15 deg min Run capacitor VAC µF 440 V 3 µF Heat exchanger Coil Aluminum plate fin Copper tube Rows fin pitch mm 3 2 0 Face area m2 0 34 Auto louver motor ...

Page 16: ...rce 220 230 240 V 1 phase 50 Hz No of pole r p m 230 V High rpm 4 1 194 Coil resistance Ω BRN WHT 43 3 ORG YEL 349 3 Ambient temperature 20 C WHT VLT 16 6 VLT PNK 40 8 VLT ORG 24 5 Safety device Operating temperature Open C 130 5 C Close C Differential 15 deg min Run capacitor VAC µF 440 V 4 0 µF Heat exchanger Coil Aluminum plate fin Copper tube Rows fin pitch mm 3 1 7 Face area m2 0 34 Auto louv...

Page 17: ...rce 220 230 240 V 1 phase 50 Hz No of pole r p m 230 V High rpm 4 1 212 Coil resistance Ω BRN WHT 43 3 ORG YEL 349 3 Ambient temperature 20 C WHT VLT 16 6 VLT PNK 40 8 VLT ORG 24 5 Safety device Operating temperature Open C 130 5 C Close C Differential 15 deg min Run capacitor VAC µF 440 V 4 5 µF Heat exchanger Coil Aluminum plate fin Copper tube Rows fin pitch mm 3 1 7 Face area m2 0 34 Auto louv...

Page 18: ...rating temperature Open C 160 5 150 10 175 5 Close C 87 9 63 10 105 9 Run capacitor V µF 400V 40 High pressure switch ACB 1TB07 Set pressure OFF kg cm2 30 ON kg cm2 24 2 0 Fan Number diameter mm Propeller 1 ø 460 Propeller 2 ø 460 Fan motor Model Nominal output W KFC6S 91C5P 100 W KFC6S 91C5PX2 100WX2 No of pole rpm 230V High rpm 6 868 6 871 Coil resistance Ω BRW WHT 61 0 Ambient temperature 20 C ...

Page 19: ...20 5 Close C 98 11 Operating ampere at 25 C A 6A 110 Run capacitor V µF High pressure switch ACB 1TB07 Set pressure OFF kg cm2 30 ON kg cm2 24 2 0 Fan Number diameter mm Propeller 1 ø 460 Fan motor Model Nominal output W KFC6S 91C5P 100 W No of pole rpm 230 V High rpm 6 868 Coil resistance Ω BRW WHT 61 0 YEL PNK 17 7 Ambient temperature 20 C WHT YEL 64 3 Safety device Operating temperature Open C ...

Page 20: ...External type Internal type External type Overload relay models FMSA 1SZ607A FMSA 1SZ607A Operating temperature Open C 120 5 130 Close C 98 11 61 Operating ampere at 25 C A 6A 110 10A 110 Run capacitor V µF High pressure switch ACB 1TB07 Set pressure OFF kg cm2 30 ON kg cm2 24 2 0 Fan Number diameter mm Propeller 2 ø460 Fan motor Model Nominal output W KFC6S 91C5PX2 100WX2 No of pole rpm 230 V Hig...

Page 21: ...r Component Specifications A Indoor Unit MODEL No SPW T253GS56 SPW T303GS56 SPW T363GS56 SPW T483GS56 Power Transformer ATR I75B Rated Primary AC 230 V 50 Hz Secondary 10 6 V 0 93 A Capacity 9 86 VAC Coil resistance Ω WHT WHT 101 BRN BRN 0 6 at 20 C Thermistor cut off temperature C 150 Thermistor Coil sensor PBC 41E S36 PBC 41E S35 Coil resistance kΩ 10 C 23 7 5 C 12 1 5 C 18 8 10 C 9 7 0 C 15 0 1...

Page 22: ...tact rated A AC 250 V 10A Relay RDR S400 Rated voltage V AC 380 415 V 3 phase 50Hz Resistance at 20 C kΩ R T 76 3 Thermostat Coil sensor YTB S377 Operating Temperature C 27 5 1 5 OFF High 25 5 ON Low Contact rated AC 250 V 1 A 1 5 0 5 1 5 0 5 MODEL No SPW C253G5 SPW C303G5 SPW C363G5 SPW C253G5 M SPW C303G5 M SPW C363G5 M Compressor Motor Mgnetic Contactor FMCA 1SZ607 Coil rated AC 220 240 V 50 Hz...

Page 23: ...1 40 40 35 35 36 125 C B 330 60 8 9 110 TUBING FOR SIDE 181 58 291 588 626 670 29 38 Dimension mm Refrigerant gas line Refrigerant liquid line Drain connection D E A Wide tube Narrow tube 20A O D 26mm 0296_T_I DRAIN HOLE SLIT HOLE 25 30 type 36 48 type A 1270 1570 B 185 250 C 60 125 D 748 1048 E 1190 1490 Ref gas line ø 15 88 ø 19 05 Ref liquid line ø 6 35 ø 9 52 1 4 Dimensional Data A Indoor Unit...

Page 24: ...olt 4 ø13 Refrigerant tube joint narrow tube Flare connection 1 4 in 6 35 mm Refrigerant tube joint wide tube Flare connection 5 8 in 15 88 mm Refrigerant tubing inlet Power supply inlet 0411_C_S Fig 3 1 4 Dimensional Data B Outdoor Unit SPW C253G5 SPW C253G5 M SPW C253G8 SPW C253G8 M SPW C303G5 SPW C303G5 M ...

Page 25: ...bolt 4 ø13 Refrigerant tube joint narrow tube Flare connection 3 8 in 9 52 mm Refrigerant tube joint wide tube Flare connection 3 4 in 19 05 mm Refrigerant tubing inlet Power supply inlet 0412_C_S Fig 4 1 4 Dimensional Data B Outdoor Unit SPW C363G5 SPW C363G5 M SPW C363G8 SPW C363G8 M SPW C483G8 SPW C483G8 M ...

Page 26: ...nser Wide tube service valve 0605_X_S Narrow tube service valve Strainer Strainer 1 5 Refrigerant Flow Diagram Indoor Unit SPW T253GS56 Outdoor Unit SPW C253G5 SPW C253G5 M SPW T303GS56 SPW C303G5 SPW C303G5 M SPW T253G56 SPW C253G8 SPW C253G8 M SPW T303G56 O D 15 88 mm 5 8 Evaporator Capillary O D 6 35 mm 1 4 Condenser Compressor Accumulator Capillary Sub condenser Wide tube service valve Narrow ...

Page 27: ...22 5 C WB 52 C DB Minimum 19 C DB 14 C WB 19 C DB 1 5 Refrigerant Flow Diagram Indoor Unit SPW T483GS56 Outdoor Unit SPW C483G8 SPW C483G8 M SPW T483G56 O D 19 05 mm 3 4 Evaporator Capillary O D 9 52 mm 3 8 Condenser HP High pressure switch Compressor Accumulator Sub condenser Wide tube service valve 0606_X_S Narrow tube service valve Strainer ...

Page 28: ... 28 SM830043 1 Specifications 1 ...

Page 29: ... 29 2 2 Processes and functions SM830043 2 PROCESSES AND FUNCTIONS 2 1 Room Temperature Control 30 2 2 Freeze Prevention 31 2 3 Outdoor Fan Control 31 ...

Page 30: ...cooling cycle the control circuit stops the compressor for 3 minutes For 5 minutes after the compressor is first turned on and for 3 minutes after it is turned off the compressor is not controlled by the room sensor Thermo ON When room temperature rises 0 5 C above the set temperature T T 0 5 C Compressor ON Thermo OFF When the room temperature is equal to or below the set temperature T Compressor...

Page 31: ...IL TEMPERATURE MORE THAN 10 MINUTES FREEZE PREVENTION 6 MINUTES 10 MINUTES FREEZE PREVENTION 6 MINUTES THERMO OFF THERMO ON 1 C ON ON ON ON ON ON 0608_X_S SET SPEED Fig 8 2 3 Outdoor Fan Control In low outdoor temperature the outdoor fan is set automatically from HIGH to LOW to prevent the indoor heat exchanger from freezing When the outdoor temperature falls below 25 5 C the outdoor fan is set fr...

Page 32: ... 32 SM830043 2 2 Processes and functions ...

Page 33: ... 33 SM830043 3 3 Electrical data 3 ELECTRICAL DATA 3 1 Indoor Unit Electric Wiring Diagram Schematic Diagram 34 3 2 Outdoor Unit Electric Wiring Diagram Schematic Diagram 42 ...

Page 34: ...RC1 YEL GRY GRY ORG VLT BRN WHT RED BRN BRN WHT WHT ORG YEL VLT WHT GRY GRY PNK BRN PNK BRN BRN FMI Controller CR X363GS E 49FMI 3P WHT COM FM SUP 5P WHT M H L 7P WHT 5 1 5 Remote Control Switch 1 12P WHT 12 1 12 1 5P WHT 2 1 TR P S 2 1 PRY 2P WHT SEC 2P WHT TH1 Coil 2 1 TH1 2P RED 3 1 LM BLK WHT 3 1 3 1 2 1 Connector 2P WHT P Connector 2P BLK Connector 2P BLU Connector 2P RED BLK BLK BLK 2 1 2 1 ...

Page 35: ...Y5 3 2 LM 1 1 RY3 4P 1 4P 4 1 4P 2 RY5 FMI C 1 2 1 7 3 5 4 5 6 RY1 RY2 RY2 H L M 3 2 1 1 1 7 3 49FMI 8 RY4 RY4 Symbols Description FMI 49FMI C F DPH LM TR RY1 RY5 TH1 TH2 Indoor Fan Motor Indoor Motor Thermal Protector Capacitor Fuse Dew Proof Heater Auto Louver Motor Power Transformer Auxiliary Relay Thermistor Indoor Coil Room Thermistor Symbols Description CR X363GS RCS Indoor Controller Remote...

Page 36: ...G VLT YEL VLT WHT GRY GRY PNK BRN PNK BRN BRN FMI Controller CR X363GS E 49FMI 3P WHT COM FM SUP 5P WHT M H L 7P WHT 5 1 5 Remote Control Switch 1 12P WHT 12 1 12 1 5P WHT 2 1 TR P S 2 1 PRY 2P WHT SEC 2P WHT TH1 Coil 2 1 TH1 2P RED 3 1 LM BLK WHT 3 1 3 1 2 1 Connector 2P WHT P Connector 2P BLK Connector 2P BLU Connector 2P RED BLK BLK BLK 2 1 2 1 S P 2 1 2 S P 3 1 3P RED FS 3P BLU DP 3P RED DPH 3...

Page 37: ... 1 4P 4 1 4P 2 RY5 FMI C 1 2 1 7 3 5 3 5 6 RY1 RY2 RY2 H L M 3 2 1 1 1 7 3 49FMI 8 RY4 RY4 Symbols Description FMI 49FMI C F DPH LM TR RY1 RY5 TH1 TH2 Indoor Fan Motor Indoor Motor Thermal Protector Capacitor Fuse Dew Proof Heater Auto Louver Motor Power Transformer Auxiliary Relay Thermistor Indoor Coil Room Thermistor Symbols Description CR X363GS RCS Indoor Controller Remote Control Switch Term...

Page 38: ...HT GRY GRY PNK BRN PNK BRN BRN FMI Controller CR X363GS E 49FMI 3P WHT COM FM SUP 5P WHT M H L 7P WHT 7P WHT 7 1 9 1 9 1 2 1 TR P S 2 1 PRY 2P WHT SEC 2P WHT TH1 Coil 2 1 TH1 2P RED 3 1 LM BLK WHT 3 1 3 1 2 1 Connector 2P WHT P Connector 2P BLK Connector 2P BLU Connector 2P RED Connector 9P WHT BLK BLK BLK 2 1 2 1 S P 2 1 2 S P 3 1 3P RED FS 3P BLU DP 3P RED DPH 3P GRN LM DPH 1 2 1 2 S P 1 BLU WHT...

Page 39: ...4 1 4P 2 RY5 FMI C 1 2 1 7 3 5 4 5 6 RY1 RY2 RY2 H L M 3 2 1 1 1 7 3 49FMI 8 RY4 RY4 Symbols Description FMI 49FMI C F DPH LM TR RY1 RY5 TH1 TH2 Indoor Fan Motor Indoor Motor Thermal Protector Capacitor Fuse Dew Proof Heater Auto Louver Motor Power Transformer Auxiliary Relay Thermistor Indoor Coil Room Thermistor Symbols Description CR X363GS IND SW Indoor Controller Indicator Lamp Assy Switch As...

Page 40: ...RN BRN FMI Controller CR X363GS E 49FMI 3P WHT COM FM SUP 5P WHT M H L 7P WHT 7P WHT 7 1 9 1 9 1 2 1 TR P S 2 1 PRY 2P WHT SEC 2P WHT TH1 Coil 2 1 TH1 2P RED 3 1 LM BLK WHT 3 1 3 1 2 1 Connector 2P WHT P Connector 2P BLK Connector 2P BLU Connector 2P RED Connector 9P WHT BLK BLK BLK 2 1 2 1 S P 2 1 2 S P 3 1 3P RED FS 3P BLU DP 3P RED DPH 3P GRN LM DPH 1 2 1 2 S P 1 BLU WHT YEL WHT BLK WHT BLK BLK...

Page 41: ... 1 7 3 5 3 5 6 RY1 RY2 RY2 H L M 3 2 1 1 1 7 3 49FMI 8 RY4 RY4 Symbols Description FMI 49FMI C F DPH LM TR RY1 RY5 TH1 TH2 Indoor Fan Motor Indoor Motor Thermal Protector Capacitor Fuse Dew Proof Heater Auto Louver Motor Power Transformer Auxiliary Relay Thermistor Indoor Coil Room Thermistor Symbols Description CR X363GS IND SW Indoor Controller Indicator Lamp Assy Switch Assy Terminal Plate Conn...

Page 42: ...tor 2P WHT 63PH 31 32 13 14 T W S V R U A B OLR P S Earth Terminal C R S GRN YEL GRN YEL GRN YEL 52C 5 7 8 1 3 Relay 1 2 1 2 6 2 4 1Y Power Supply 50Hz 1ø 220 V To Indoor Unit Terminal Plate 1 2 4 L N WHT PNK WHT PNK WHT WHT RED BRN RED WHT BLK WHT BLU RED RED WHT Electric Wiring Diagram W 854 2 5268 461 00 1 C253G5 P S C H L 23S YEL WHT GRY BRN PNK RED RED ...

Page 43: ...ematic Diagram S 854 2 5268 461 00 1 C253G5 Symbols Description CM FM 52C 63PH 23S C1 2 OLR 1Y Compressor motor Fan Motor Compressor Motor Magnetic Contactor High Pressure Switch Fan Speedcontrol Thermostat Capacitor Overload relay Auxiliary Relay Connector Terminal Plate 3 2 Outdoor Unit 1 1 1 1 1 SPW C253G5 SPW C253G5 M ...

Page 44: ...or 2P WHT 63PH 31 32 13 14 T W S V R U A B P S Earth Terminal C R S GRN YEL GRN YEL GRN YEL 52C 5 7 8 1 3 Relay 1 2 1 2 6 2 4 1Y Power Supply 50Hz 1ø 220 V To Indoor Unit Terminal Plate 1 2 4 L N WHT PNK WHT PNK WHT WHT RED BRN WHT BLK WHT BLU RED RED WHT Electric Wiring Diagram W 854 2 5268 462 00 1 C303G5 P S C H L 23S YEL WHT GRY BRN PNK RED RED TH BLK WHT ...

Page 45: ... 63PH C2 TH 52C 23S FM CM L H C 4 5 1 2 3 W T 52C Schematic Diagram S 854 2 5268 462 00 1 C303G5 Symbols Description CM FM 52C 63PH 23S C1 2 TH 1Y Compressor motor Fan Motor Compressor Motor Magnetic Contactor High Pressure Switch Fan Speedcontrol Thermostat Capacitor Thermistor Auxiliary Relay Connector Terminal Plate ...

Page 46: ...L GRN YEL GRN YEL 52C 5 7 8 1 3 Relay 1 2 1 2 6 2 4 2Y Power Supply 50Hz 1ø 220 V To Indoor Unit Terminal Plate 1 2 4 L N WHT PNK WHT PNK WHT WHT RED BRN WHT BLK WHT BLU RED RED RED WHT Electric Wiring Diagram W 854 2 5268 463 00 2 C363G5 P S YEL WHT GRY BRN PNK FM2 C2 YEL WHT GRY BRN PNK 4 5 4 5 2 3 2 3 1 1 Connector 6P WHT P S YEL WHT GRY BRN PNK RED TH BLK WHT Relay 3 8 7 1 4 5 1Y 2 6 C H L 23S...

Page 47: ... 6 C L C3 TH 52C H 23S 5 4 1 2 3 1Y FM1 CM 3 1 5 5 4 1 2 3 W T 52C Schematic Diagram S 854 2 5268 463 00 2 C363G5 Symbols Description CM FM1 2 52C 63PH 23S C1 2 3 TH 1Y 2Y Compressor motor Fan Motor Compressor Motor Magnetic Contactor High Pressure Switch Fan Speedcontrol Thermostat Capacitor Thermistor Auxiliary Relay Connector Terminal Plate ...

Page 48: ...H 31 32 13 14 T W S V R U 6 4 2 A B 95 96 51C C P S H L 23S 49C Earth Terminal R S T GRN YEL GRN YEL GRN YEL 52C 4 6 3 5 8 Relay S B A T R C 7 1 2 1 2 1Y 47C Power Supply 50Hz 3ø 380 V 415 V To Indoor Unit Terminal Plate 1 2 4 5 6 7 8 L1 L2 L3 N PNK BRN ORG WHT WHT PNK PNK BLU RED PNK YEL RED WHT BLU ORG RED WHT WHT BLU RED RED GRY WHT ORG Electric Wiring Diagram W 854 2 5268 458 00 0 C253G8 ...

Page 49: ...chematic Diagram S 854 2 5268 458 00 0 C253G8 Symbols Description CM FM 52C 51C 49C 47C 63PH 23S C 1Y Compressor motor Fan Motor Compressor Motor Magnetic Contactor Compressor Motor Overcurrent Relay Compressor Motor Thermal Protector Negative Phase Relay High Pressure Switch Fan Speedcontrol Thermostat Capacitor Auxiliary Relay Connector Terminal Plate 13 14 5 95 96 51C 52C 1Y 3 CM ...

Page 50: ... YEL GRN YEL GRN YEL GRN YEL 52C 4 6 3 5 8 Relay Relay S B A T R C 7 1 2 1 2 2Y 47C Power Supply 50Hz 3ø 380 V 415 V To Indoor Unit Terminal Plate 1 2 4 5 6 7 8 L1 L2 L3 N PNK BRN ORG WHT WHT PNK PNK BLU RED PNK YEL RED WHT BLU ORG GRY RED WHT BLU RED RED GRY WHT ORG ORG Electric Wiring Diagram W 854 2 5268 459 00 1 C363G8 P S FM2 C2 YEL WHT GRY BRN PNK YEL WHT GRY BRN PNK 4 5 4 5 2 3 2 3 1 1 Conn...

Page 51: ... 3 52C 51C Schematic Diagram S 854 2 5268 459 00 1 C363G8 Symbols Description CM FM1 2 52C 51C 49C 47C 63PH 23S C1 2 1Y 2Y Compressor motor Fan Motor Compressor Motor Magnetic Contactor Compressor Motor Overcurrent Relay Compressor Motor Thermal Protector Negative Phase Relay High Pressure Switch Fan Speedcontrol Thermostat Capacitor Auxiliary Relay Connector Terminal Plate 13 14 5 95 96 51C 52C 2...

Page 52: ... YEL GRN YEL GRN YEL GRN YEL 52C 4 6 3 5 8 Relay Relay S B A T R C 7 1 2 1 2 2Y 47C Power Supply 50Hz 3ø 380 V 415 V To Indoor Unit Terminal Plate 1 2 4 5 6 7 8 L1 L2 L3 N PNK PNK BRN ORG WHT WHT PNK PNK BLU RED PNK RED WHT BLU GRY RED WHT BLU RED RED GRY WHT ORG ORG YEL Electric Wiring Diagram W 854 2 5268 460 00 1 C483G8 P S FM2 C2 YEL WHT GRY BRN PNK YEL WHT GRY BRN PNK 4 5 4 5 2 3 2 3 1 1 Conn...

Page 53: ...S 63PH C 6 5 4 1 2 3 52C 51C Schematic Diagram S 854 2 5268 460 00 1 C483G8 Symbols Description CM FM1 2 52C 51C 47C 63PH 23S C1 2 1Y 2Y Compressor motor Fan Motor Compressor Motor Magnetic Contactor Compressor Motor Overcurrent Relay Negative Phase Relay High Pressure Switch Fan Speedcontrol Thermostat Capacitor Auxiliary Relay Connector Terminal Plate 13 14 5 95 96 51C 52C 2Y 3 CM ...

Page 54: ...SM830043 54 3 3 Electrical data ...

Page 55: ... fan does not run 64 7 Outdoor fan speed is not switched from High to Low even when the outdoor temperature falls below 25 5 C 64 8 Compressor does not run 64 9 Poor cooling 65 10 Excessive cooling 66 4 2 A Sensor is Defective 67 4 3 Operation of Major Electrical Parts 67 4 4 Checking the Electrical Components 68 1 Measurement of Insulation Resistance 68 2 Checking the Protective Devices 69 3 Chec...

Page 56: ...g AC 220 240 V Line voltage is correctly connected between the indoor unit and outdoor unit 3 3 3 3 3 Check power supply Check that voltage is within the specified range 10 of the rating Check that power is being supplied If the following troubleshooting must be done with power being supplied be careful not to thouch any uninsulated live part that can cause ELECTRIC SHOCK 4 4 4 4 4 Check the lead ...

Page 57: ...wiring Remove interunit power line from the terminal plate in the outdoor unit Check insulation resistance of outdoor unit OK Remove interunit power line from the terminal plate in the indoor unit Check insulation resistance of indoor unit OK Interunit power lines are defective NO Insulation of outdoor unit is defective Check insulation resistance of electrical parts in the outdoor unit Check insu...

Page 58: ...t breaker is tripped Power failure Reset the breaker Wait for recovery or consult power supply company NO B Check remote control unit 0616_X_S Try to run both indoor and outdoor units with another remote control unit Refer to item C NO The other remote control unit is defective OK Check capacity of circuit breaker NO Check resistance of outdoor fan motor winding 0614_X_S Is capacity of circuit bre...

Page 59: ... Check the continuity between No 1 and No 2 poles of the socket 0617_X_S Has Operation selector switch been set to ON position YES Set Operation selector switch to ON NO But neither unit runs Switch Ass y or P C B Ass y in the indoor unit is defective IND LAMP Ass y or P C B Ass y in the indoor unit is defective 0619_X_S Check compressor motor overcurrent relay 51C Does it actuate YES NO YES Consu...

Page 60: ...ice by hand Check fan casing for foreign matter on the inside Remove foreign matter or repair Repair or replace Fan cannot be rotated OK Check fan motor capacitor Fan motor burnout or foreign matter in bearing G Check fuse on the P C B Ass y in the indoor unit 0665_T_S Check fuse on the P C B Ass y in the indoor unit for continuity Check transformer TR Check resistance of indoor fan motor winding ...

Page 61: ...emperature setting button COOLER Set Operation selector switch to TEST in the indoor unit YES Outdoor unit runs Is room temperature too low NO Try to run both indoor and outdoor units with another remote control unit OK The other remote control unit is defective Room sensor in the remote control unit is defective C Outdoor unit is abnormal a Check power supply wiring 0625_X_S Check negative phase ...

Page 62: ...te Check P C B Ass y No voltage appears P C B Ass y is defective D Check indoor unit P C B 0626_X_S Is temperature of compressor abnormally high Refrigerant gas shortage YES NO Compressor is defective Charge refrigerant gas Check compressor motor thermal protector 49C 0627_X_S Check compressor motor magnetic contactor 52C Only outdoor fan does not run ...

Page 63: ...motor capacitor OK Relay RY1 or RY2 on the P C B Ass y is defective Check fan rotation Rotate the fan gently once or twice by hand 0631_X_S Check fan casing for foreign matter on the inside Remove foreign matter or repair Repair or replace Fan cannot be rotated Fan motor burnout or foreign matter in bearing OK 2 Louver motor does not run Check resistance of louver motor winding P C B Ass y or remo...

Page 64: ...oreign matter in bearing SPW C363G8 SPW C363G8 M and SPW C483G8 SPW C483G8 M 8 Compressor does not run Check compressor motor capacitor Refer to 4 4 0635_X_S Check resistance of compressor motor winding Check compressor motor overload relay Only SPW C253G5 SPW C253G5 M OK OK OK NG NG NG Refer to 4 4 Refer to 4 4 Refer to 4 4 NG Replace magnetic contactor Check continuity between terminals R U and ...

Page 65: ...e control unit Insulate wide tube and then execute taping with narrow tube YES NO Possibility of refrigerant shortage Charge refrigerant R22 Temperature difference is small YES Check clogging of air filter Temperature difference between suction and discharge air is large enough Approx 10 deg or more Clean filter Air filter is clogged Set fan speed to either HIGH or MEDIUM Is fan speed set to LOW R...

Page 66: ... is too low Is the remote control unit installed at a place where it can detect the room temperature properly 0637_X_S Set the temperature to higher value using temperature setting button of the remote control unit Change installation position of the remote control unit YES NO ...

Page 67: ...either outdoor fan nor compressor runs b Short Outdoor fan and compressor do not stop Excessive cooling 4 3 Operation of Major Electrical Parts Function Operation Indoor unit and Remote Control unit Oudoor unit Freeze prevention Manual Energy saver Night setback Timer set Fan Operation Mode Sweep Stop Indicator lamps Thermo ON V V V V V Thermo OFF V V V Thermo ON V V V V V V Thermo OFF V V V Therm...

Page 68: ...Unit Measure the resistance by placing a probe on the terminal plate in the same manner as explained above 2 Fig 43 4 Measurement of Insulation Resistance for Electrical parts Disconnect the connector of the desired electric part from terminal plate P C B Ass y etc Fig 44 Similarly disconnect the lead wires from compressor capacitor etc Fig 45 Measure the resistance in the same manner as illustrat...

Page 69: ...e is proved normal if there is a continuity between terminals 1 Indoor fan motor thermal protector 49FI Indoor unit Disconnect the connector which leads to the indoor fan motor FMI Check the socket s terminals 2 Compressor motor thermal protector 49C Outdoor unit Disconnect both the connectors in the outdoor unit Check terminal between the plug and socket 3 Outdoor fan motor thermal protector 49FO...

Page 70: ...ndoor fan motor Refer to 1 2 A Major component specifications 3 Outdoor fan motor FMO Outdoor unit Measure the coil resistance Measure the resistance in the same manner as explained above 2 Refer to 1 2 B Major component specifications 4 Fan motor capacitor Both in indoor and outdoor unit Remove the lead wires from the capacitor terminals and then place a probe on the capacitor terminals as shown ...

Page 71: ...inuity of the fuse by using the multimeter Fig 49 Having continuity is acceptable 4 Thermistor Characteristic Curve 1 Room temp sensor 1 Coil sensor Fuses Indoor P C B Ass y 0644_X_S Fuse 0645_X_S PBC 41E KTEC 35 Resistance kn 10 15 20 25 30 35 40 10 9 8 7 6 5 4 3 2 1 Temperature C 0374_M_I 20 15 10 5 0 5 10 15 20 0 5 10 15 20 25 30 35 40 Temperature C Resistance kn 0375_M_I Fig 48 Fig 49 ...

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