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Sanyo C4232 manual

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Table of contents for the manual

  • Page 1

    85464869178000 REFERENCE NO. SM 830078 SPLIT SYSTEM AIR CONDITIONER TECHNICAL D A T A & SER VICE MANU AL FILE NO. INDOOR MODEL No. PRODUCT CODE No. OUTDOOR MODEL No. PRODUCT CODE No. XS4232 854 016 10 C4232 854 016 12 CL4232 854 016 11 TS4232 854 016 09 C4232 854 016 12 CL4232 854 016 11 TS4232 XS4232 C4232 CL4232 Indoor Unit Outdoor Unit XS423[...]

  • Page 2

    – 2 – SM830078 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 installation and trouble-free operation, you must : ⓦ Carefully read this [...]

  • Page 3

    – 3 – SM830078 T ab le of Contents 1. OPERATING RANGE ....................................................................................... 5 2. SPECIFICATIONS ............................................................................................ 6 (1) Unit Specifications .................................................................[...]

  • Page 4

    – 4 – SM830078 Intr oduction: Read Me Fir st! This manual will help you understand and service the air conditioner. To help you find the information you need, we have divided it into 5 main sections. Each section is divided into chapters with charts, tables and explana- tions to help you find and repair problems. ❑ Section 1: Specifications, [...]

  • Page 5

    – 5 – SM830078 1. OPERA TING RANGE XS4232, TS4232 / C4232 XS4232, TS4232 / CL4232 T emperature Indoor Air Intake T emp. Outdoor Air Intake T emp. Maximum 95 ° F DB / 71 ° F WB 115 ° F DB Minimum 67 ° F DB / 57 ° F WB 67 ° F DB T emperature Indoor Air Intake T emp. Outdoor Air Intake T emp. Maximum 95 ° F DB / 71 ° F WB 115 ° F DB Minim[...]

  • Page 6

    – 6 – SM830078 (1) Unit Specifications 2. SPECIFICA TIONS MODEL No. Indoor Unit XS4232 Outdoor Unit C4232 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Capacity BTU / h 42,000 40,500 kW 12.32 11.88 Air circulation (Hi) cu.ft. / min. 980 880 Moisture remov al (High) Pints / h 14.6 14.8 ELECTRICAL RA TINGS V oltage rating V A C [...]

  • Page 7

    – 7 – SM830078 2. SPECIFICA TIONS (1) Unit Specifications MODEL No. Indoor Unit XS4232 Outdoor Unit CL4232 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Capacity BTU / h 42,000 40,500 kW 12.32 11.88 Air circulation (Hi) cu.ft. / min. 980 880 Moisture remov al (High) Pints / h 14.6 14.8 ELECTRICAL RA TINGS V oltage rating V A C[...]

  • Page 8

    – 8 – SM830078 (1) Unit Specifications 2. SPECIFICA TIONS MODEL No. Indoor Unit TS4232 Outdoor Unit C4232 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Capacity BTU / h 42,000 40,500 kW 12.32 11.88 Air circulation (Hi) cu.ft. / min. 900 800 Moisture remov al (High) Pints / h 14.8 14.6 ELECTRICAL RA TINGS V oltage rating V A C [...]

  • Page 9

    – 9 – SM830078 2. SPECIFICA TIONS (1) Unit Specifications MODEL No. Indoor Unit TS4232 Outdoor Unit CL4232 PO WER SOURCE 230 - 208 V / 1 Phase / 60 Hz PERFORMANCE Cooling Capacity BTU / h 42,000 40,500 kW 12.32 11.88 Air circulation (Hi) cu.ft. / min. 900 800 Moisture remov al (High) Pints / h 14.8 14.6 ELECTRICAL RA TINGS V oltage rating V A C[...]

  • Page 10

    – 10 – SM830078 (2) Major Component Specifications (A) Indoor Unit 2. SPECIFICA TIONS D A T A SUBJECT TO CHANGE WITHOUT NO TICE MODEL No . XS4232 Source 230 - 208 V / 1 phase / 60 Hz Remote controller (Accessory) RCS - 5PS4U Controller P. C. B Ass'y CR - TS2432 Control circuit fuse 250 V, 3 A Switch Ass'y SW - X363GS Fan (Number … d[...]

  • Page 11

    – 11 – SM830078 (2) Major Component Specifications (A) Indoor Unit 2. SPECIFICA TIONS MODEL No . TS4232 Source 230 - 208 V / 1 phase / 60 Hz Remote controller (Accessory) RCS - 5PS4U Controller P. C. B Ass'y CR - TS2432 Control circuit fuse 250 V, 3 A Switch Ass'y SW - X363GS Fan (Number … diameter) in. (mm) Centrifugal (4 ... 5-29/[...]

  • Page 12

    – 12 – SM830078 (2) Major Component Specifications (B) Outdoor Unit 2. SPECIFICA TIONS + 2.0 + 0.5 D A T A SUBJECT TO CHANGE WITHOUT NO TICE MODEL No . C4232 Source 230 - 208 V / 1 phase / 60 Hz Compressor Scroll (Hermetic) Model ZR47KC - PFV Source 230 - 208 V / 1 phase / 60 Hz Nominal output W 4,270 Compressor oil cc 1,240 Coil resistance (Am[...]

  • Page 13

    – 13 – SM830078 2. SPECIFICA TIONS (2) Major Component Specifications (B) Outdoor Unit MODEL No. CL4232 Source 230 - 208 V / 1 phase / 60 Hz Controller P.C.B. Ass'y CR - CL2432 (Microprocessor) Control circuit fuse 250 V, 3 A Compressor Scroll (Hermetic) Model ZR47KC - PFV Source 230 - 208 V / 1 phase / 60 Hz Nominal output W 2,200 Compres[...]

  • Page 14

    – 14 – SM830078 2. SPECIFICA TIONS (3) Other Component Specifications (A) Indoor Unit MODEL No . XS4232 Power Transformer ATR – I104A Rated Primary AC 220 V, 60 Hz Secondary 10.6 V, 0.93 A Capacity 9.85 VAC Coil resistance Ω WHT - WHT : 101 , BRN - BRN : 0.42 (Ambient temprature 77 ° F) Thermistor cut off temperature ° F2 6 6 Thermistor ([...]

  • Page 15

    – 15 – SM830078 2. SPECIFICA TIONS (3) Other Component Specifications (A) Indoor Unit MODEL No . TS4232 Power Transformer ATR – I104A Rated Primary AC 220 V, 60 Hz Secondary 10.6 V, 0.93 A Capacity 9.85 VAC Coil resistance Ω WHT - WHT : 101 , BRN - BRN : 0.42 (Ambient temprature 77 ° F) Thermistor cut off temperature ° F2 6 6 Thermistor ([...]

  • Page 16

    – 16 – SM830078 (3) Other Component Specifications (B) Outdoor Unit MODEL No. C4232 Compressor Motor Magnetic Contactor FC - 2SUL Coil rated AC 240 V, 60 Hz Coil resistance (at 68 ° F) Ω 350 ± 10 % Contact rated (Main) AC 240 V, 35 A Contact rated (Auxiliary) AC 240 V, 3 A Power Relay HH62S Coil rated AC 240 V, 60 Hz Coil resistance (at 77 [...]

  • Page 17

    – 17 – SM830078 (3) Other Component Specifications (B) Outdoor Unit MODEL No. CL4232 Compressor Motor Magnetic Contactor FC - 2SUL Coil rated AC 240 V, 60 Hz Coil resistance (at 68 ° F) Ω 350 ± 10 % Contact rated (Main) AC 240 V, 35 A Contact rated (Auxiliary) AC 240 V, 3 A Power Relay HH62S Coil rated AC 240 V, 60 Hz Coil resistance (at 77[...]

  • Page 18

    – 18 – SM830078 3. DIMENSIONAL D A T A (1) Indoor Unit: XS4232 45-9/32 41-11/32 31-3/32 19-11/16 12-29/32 1-3/16 8-19/32 4-29/32 33-27/32 43-11/16 (Ceiling opening) 32-9/32 (Ceiling opening) 2-13/32 40-5/32 (Suspention bolt pitch) Panel center 23-7/32 (Suspention bolt pitch) 19-9/32 1-9/16 Air intake grille Air outlet Refrigerant liquid line (?[...]

  • Page 19

    – 19 – SM830078 3. DIMENSIONAL D A T A (1) Indoor Unit: TS4232 Drain connection Drain connection for left side Refrigerant liquid line (3/8") Flare connection Refrigerant gas line (3/4") Flare connection Hole for rear side refrigerant tubing Hole for through-the-wall refrigerant tubing (ø3-15/16" hole) Hole for fresh air intake [...]

  • Page 20

    – 20 – SM830078 3. DIMENSIONAL D A T A (2) Outdoor Unit: C4232, CL4232 48-5/8 22-27/32 23-29/32 37 Dimension : inch Hole for anchor 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 1342_C_S 15-3/4[...]

  • Page 21

    – 21 – SM830078 4. COOLING CAP A CITY RA TING CAP A CITY : 42,000 BTU / h AIR FLO W RA TE : 980 CFM EV APORA TOR CONDENSER ENT . TEMP . ° F ( ° C) AMBIENT TEMP . ° F ( ° C) WB DB 75 85 95 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) TC 42,550 40,490 38,140 35,490 32,550 CI 3.01 3.28 3.58 3.98 4.38 72(22.2) SHC 29,220 28,050 26,750 25,330 23,8[...]

  • Page 22

    – 22 – SM830078 4. COOLING CAP A CITY 1 1 1 1 1 Indoor Unit: XS4232 Outdoor Unit: C4232, CL4232 • 208V / 1 phase / 60Hz RA TING CAP A CITY : 40,500 BTU / h AIR FLO W RA TE : 880 CFM EV APORA TOR CONDENSER ENT . TEMP . ° F ( ° C) AMBIENT TEMP . ° F ( ° C) WB DB 75 85 95 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) TC 41,030 39,040 36,770 34,[...]

  • Page 23

    – 23 – SM830078 4. COOLING CAP A CITY RA TING CAP A CITY : 42,000 BTU / h AIR FLO W RA TE : 900 CFM EV APORA TOR CONDENSER ENT . TEMP . ° F ( ° C) AMBIENT TEMP . ° F ( ° C) WB DB 75 85 95 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) TC 42,550 40,490 38,140 35,490 32,550 CI 3.01 3.28 3.58 3.98 4.38 72(22.2) SHC 29,380 28,220 26,940 25,530 24,0[...]

  • Page 24

    – 24 – SM830078 4. COOLING CAP A CITY 2 2 2 2 2 Indoor Unit: TS4232 Outdoor Unit: C4232, CL4232 • 208V / 1 phase / 60Hz RA TING CAP A CITY : 40,500 BTU / h AIR FLO W RA TE : 800 CFM EV APORA TOR CONDENSER ENT . TEMP . ° F ( ° C) AMBIENT TEMP . ° F ( ° C) WB DB 75 85 95 105 115 (23.9) (29.4) (35.0) (40.6) (46.1) TC 41,030 39,040 36,770 34,[...]

  • Page 25

    – 25 – SM830078 5. PERFORMANCE CHARTS (1) Operating Current 1 1 1 1 1 Indoor Unit: XS4232 Outdoor Unit: C4232 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 1792_X_S Operating current (A) 21 22 23 17 16 18 19 20 59 68 77 86 95 104 (15[...]

  • Page 26

    – 26 – SM830078 5. PERFORMANCE CHARTS (1) Operating Current 2 2 2 2 2 Indoor Unit: TS4232 Outdoor Unit: C4232 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 1794_X_S Operating current (A) 21 22 23 17 16 18 19 20 59 68 77 86 95 104 (15[...]

  • Page 27

    – 27 – SM830078 5. PERFORMANCE CHARTS (1) Operating Current 3 3 3 3 3 Indoor Unit: XS4232 Outdoor Unit: CL4232 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 1796_X_S Operating current (A) 21 22 23 17 16 15 18 19 20 23 32 41 50 59 68 [...]

  • Page 28

    – 28 – SM830078 5. PERFORMANCE CHARTS (1) Operating Current 4 4 4 4 4 Indoor Unit: TS4232 Outdoor Unit: CL4232 Operating current characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V 208V 1798_X_S Operating current (A) 21 22 23 17 16 15 18 19 20 23 32 41 50 59 68 [...]

  • Page 29

    – 29 – SM830078 5. PERFORMANCE CHAR TS (2) High and Low Pressure 1 1 1 1 1 Indoor Unit: XS4232, TS4232 Outdoor Unit: C4232 • High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V / 208V • Low Pressure Low pressure characteristics ve[...]

  • Page 30

    – 30 – SM830078 5. PERFORMANCE CHARTS (2) High and Low Pressure 2 2 2 2 2 Indoor Unit: XS4232, TS4232 Outdoor Unit: CL4232 • High Pressure High pressure characteristics versus outdoor ambient temperature and indoor temperature. (Indoor relative humidity: 50%, Indoor fan speed: High) 230V / 208V • Low Pressure Low pressure characteristics ve[...]

  • Page 31

    – 31 – SM830078 6. AIR THRO W DIST ANCE CHAR T MODEL: XS4232 0 3 7 1 01 31 7 2 0 0 3 7 10 13 HORIZONT AL DIST ANCE (ft.) AXIS AIR VELOCITY (ft./sec) VERTICAL DIST ANCE (ft.) AXIS AIR VELOCITY F AN SPEED COOLING ROOM AIR TEMP . LOUVER ANGLE HIGH 80 ° F 30 ° : COOLING 1428_X_S MODEL: TS4232 COOLING F AN SPEED HIGH R OOM AIR TEMP . 80 ° F LOUVE[...]

  • Page 32

    – 32 – SM830078 7. REFRIGERANT FLOW DIAGRAM Indoor Unit: 4232 Type Outdoor Unit: C4232, CL4232 O. D. 3/4" (19.05 mm) Evaporator Capillary O. D. 3/8" (9.52 mm) Condenser HP High pressure switch Compressor Accumulator Sub-condenser Wide tube service valve 1802_X_S Narrow tube service valve Strainer Insulation of Refrigerant Tubing IMPOR[...]

  • Page 33

    – 33 – SM830078 8. INST ALLA TION INSTR UCTIONS 1) Tubing Length • Refrigerant tubing between the indoor and outdoor units should be kept as short as possible. • Select and decide the installation location so that the length of the refrigerant tubing will be within the limits given in Table 1. Fig. 1 Tubing length (L) INDOOR UNIT OUTDOOR UN[...]

  • Page 34

    – 34 – SM830078 8. INST ALLA TION INSTRUCTIONS 2) Selecting the Installation Site AVOID: ã areas where leakage of flammable gas may be expected. ã places where large amounts of oil mist exist. ã direct sunlight. ã locations near heat sources which may affect performance of the unit. ã locations where external air may enter the room directl[...]

  • Page 35

    – 35 – SM830078 8. INST ALLA TION INSTR UCTIONS Out- door unit Heat source Hot air Exhaust fan 0591_C_I Fig. 2 Fig. 3 Min. 1 inch Min. 1 inch Min. 2 ft. 4 in. 0931_C_I Min. 7 ft. Ground Air dis- charge 0932_C_I Obstacle above Outdoor Unit AVOID: ã heat sources, exhaust fans, etc. (Fig. 2) ã damp, humid or uneven locations. DO: ã choose a pla[...]

  • Page 36

    – 36 – SM830078 8. INST ALLA TION INSTRUCTIONS Air Discharge Chamber for Top Discharge Install the air-discharge chamber in the field when: ã it is difficult to keep a space of minimum 2 ft. between the air-discharge outlet and the obstacle. ã the air-discharge outlet is facing the side- walk and discharged hot air can annoy the passers-by. R[...]

  • Page 37

    – 37 – SM830078 8. INST ALLA TION INSTR UCTIONS 3) Electrical Wiring General Precautions on Wiring (1) Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram. (2) Provide a power outlet to be used exclu- sively for each unit, and a power supply disconnect an[...]

  • Page 38

    – 38 – SM830078 9. ELECTRICAL D A T A Indoor Unit Outdoor Unit Complete Unit Fan Motor Fan Motor Compressor Performance at 230 - 208 V / 1 phase / 60 Hz 230 - 208 V / 1 phase / 60 Hz Rating conditions A 0.9 - 0.8 1.8 - 1.8 18.1 - 18.5 20.8 - 21.1 kW 0.2 - 0.16 0.36 - 0.34 3.67 - 3.62 4.23 - 4.12 Full load conditions A 0.9 - 0.8 1.8 - 1.8 21.44 [...]

  • Page 39

    – 39 – SM830078 10. ELECTRICAL WIRING DIAGRAMS (1) Indoor Unit 1 1 1 1 1 XS4232 TH1 (Coil) 3 1 DP Connector 9P(WHT) Connector 2P(YEL) 3 1 FS 2 1 3 1 3 1 3 17 5 3 15 2 13 2 13 S P 123 123 123 4567 89 1 P S P S 2 22 11 3456789 Connector 3P(WHT) • Electric Wiring Diagram W 854-2-5268-578-00-0 (XS3632) RC1 GRN/YEL GRN/YEL GRN/YEL GRN/YEL Earth Te[...]

  • Page 40

    – 40 – SM830078 10. ELECTRICAL WIRING DIAGRAMS (1) Indoor Unit 1 1 1 1 1 XS4232 • Schematic Diagram S 854-2-5268-578-00-0 (XS3632) 2 1 3 1 3 1 2 IND 3 1 2 7 1 7 1 SW TR1 PRY Coil TH1 2 1 Room TH2 FS CR-TS2432 Controller 1 3 5 F1 (3A) 1 2 1 3 DP RY2 RY1 RY3 RY4 RY5 3 2 LM 1 1 RY5 4P-4 4P-2 4P-1 1 FMI 1 2 1 9 8 7 3 5 4 5 6 RY1 RY2 RY2 HL M 1 3 [...]

  • Page 41

    – 41 – SM830078 (1) Indoor Unit 2 2 2 2 2 TS4232 10. ELECTRICAL WIRING DIA GRAMS TH1 (Coil) 3 1 Connector 9P(WHT) Connector 2P(YEL) 3 1 2 1 3 1 3 1 3 17 5 3 15 2 13 2 13 Connector 2P(BLK) Connector 2P(WHT) 123 4567 89 1 P S P S P S 2 22 11 3456789 • Electric Wiring Diagram W 854-2-5268-593-00-0 (TS3632) RC1 GRN/YEL GRN/YEL GRN/YEL Earth Termi[...]

  • Page 42

    – 42 – SM830078 10. ELECTRICAL WIRING DIAGRAMS (1) Indoor Unit 2 2 2 2 2 TS4232 • Schematic Diagram S 854-2-5268-593-00-0 (TS3632) 2 1 3 1 3 1 2 IND 3 1 2 7 1 7 1 SW TR1 PRY Coil TH1 2 1 Room TH2 CR-TS2432 Controller 1 1 3 5 F1 (3A) 1 2 1 3 2 RY2 RY1 RY3 RY4 RY5 3 LM 1 RY5 4P-4 4P-2 4P-1 1 FMI 1 2 1 9 8 7 3 5 4 5 6 RY1 RY2 RY2 H DP L M 1 3 49[...]

  • Page 43

    – 43 – SM830078 10. ELECTRICAL WIRING DIAGRAMS (2) Outdoor Unit 1 1 1 1 1 C4232 • Electric Wiring Diagram W 854-2-5268-896-00-0 (C4232) P S FMO2 RC3 49FO2 RC1 BLU BLK P S BRN PNK GRY GRY WHT VLT YEL 5 4 5 4 7 6 7 6 2 1 2 1 3 3 8 8 BRN PNK P S FMO1 RC2 49FO1 BRN PNK GRY GRY WHT VLT YEL 5 4 5 4 7 6 7 6 2 1 2 1 3 3 8 8 Earth Terminal Connector 8[...]

  • Page 44

    – 44 – SM830078 10. ELECTRICAL WIRING DIAGRAMS (2) Outdoor Unit 1 1 1 1 1 C4232 S V R U C L RC1 SC R 52C H 23S 1Y CM RC2 FMO1 3 1 5 1Y 6 5 2 1 RC3 FMO2 4 2 6 6 5 2 1 3 4 3 49FO1 Terminal Plate (6P) 49FO2 63PH 2Y 4 1 2Y 2 2Y 52C TW 52C -1 -L2 -L1 -4 -G -2 • Schematic Diagram S 854-2-5268-896-00-0 (C4232) Symbols Description CM FMO1, 2 49FO1, 2[...]

  • Page 45

    – 45 – SM830078 10. ELECTRICAL WIRING DIAGRAMS (2) Outdoor Unit 2 2 2 2 2 CL4232 L1 L2 1 2 4 G L1 L2 Terminal Plate (6P) Power Supply 60Hz 1PH 208 V / 230 V To Indoor Unit G 2 1 2 1 S P Connector 2P (WHT) CH WHT WHT WHT WHT 2 1 2 1 S P Connector 2P (WHT) GRY WHT WHT GRY BRN CM C R S RC1 WHT BLK BLK RED A2 A1 RST 4 1 13 UVW 4 2 14 52C • Electr[...]

  • Page 46

    – 46 – SM830078 10. ELECTRICAL WIRING DIAGRAMS (2) Outdoor Unit 2 2 2 2 2 CL4232 • Schematic Diagram 1 3 2 1 2 1 TR AC 208V 230V AC 14V TH Outdoor Temperature CM 52C C R U S V S R RC1 7 5 9 1 6 5 7 FMO2 RC3 RY1 RY3 RY2 4Y 52C 14 13 52C 1Y 41 42 2Y 3Y HL M 1 3 1 2 6 5 7 FMO1 RC2 49FO2 49FO1 63PH 1Y COM COM 1 2 F2 (3A) F1 (3A) 3Y 2Y 1Y 4Y RY1 R[...]

  • Page 47

    – 47 – SM830078 11. PR OCESSES AND FUNCTIONS Fig. 8 (1) Room Temperature Control The Unit adjusts room temperature by turning the outdoor unit’s compressor ON and OFF. This process is controlled by the thermostat located in the remote control unit. The figures on this and the next pages show how each part of the system performs when the room [...]

  • Page 48

    – 48 – SM830078 11. PROCESSES AND FUNCTIONS (2) Freeze Prevention Freeze Prevention keeps the indoor heat exchange coil from freezing. Freezing reduces the efficiency of the unit, and frost buildup on the coil blocks cool air circulation from the indoor unit’s fan. Fig. 9 COMPRESSOR OUTDOOR F AN INDOOR F AN OFF OFF OFF OFF INDOOR COIL TEMPERA[...]

  • Page 49

    – 49 – SM830078 11. PR OCESSES AND FUNCTIONS (4) Outdoor Fan Speed Control 1) C4232 Type • 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 78 ° F, the outdoor fan is set from HIGH to LOW automatically. When the o[...]

  • Page 50

    – 50 – SM830078 12. SER VICE PROCEDURES Single-phase outdoor unit 1 2 G 4 1 2 4 G L1 L2 G Indoor Unit Outdoor Unit Power supply Ground B A 1089_M_I Ground Inter-Unit Wiring (Line voltage) Disconnect SW (Field supply) Fig. 12 (1) Troubleshooting 1) Check before and after Troubleshooting Many problems may happen because of wiring or power supply [...]

  • Page 51

    – 51 – SM830078 12. SER VICE PR OCEDURES 2) Air Conditioner does not Operate 1 1 1 1 1 Circuit breaker trips (or fuse blows). (a) When the circuit breaker is set to ON, it is tripped soon. • There is a possibility of ground fault. • Check insulation resistance. If resistance value is 1 M Ω or less, it is a defect of insulation. 1 2 3 (Exa[...]

  • Page 52

    – 52 – SM830078 12. SER VICE PROCEDURES (b) Circuit breaker trips in several minutes after turning the air conditioner on. • There is a possibility of short circuit. 2 2 2 2 2 Neither indoor unit nor outdoor unit runs. A. Power is not supplied B. Check remote control unit. 0615_X_S • Check power supply. Is power being supplied to outdoor un[...]

  • Page 53

    – 53 – SM830078 12. SER VICE PR OCEDURES C. Check “Operation selector” switch in the indoor unit. D. Check compressor motor protectors. (a) High pressure switch (63PH) E. Transformer in indoor unit. 0617_X_S • Has “Operation selector” switch been set to ON position ? YES Set “Operation selector” switch to ON. NO But neither unit r[...]

  • Page 54

    – 54 – SM830078 12. SER VICE PROCEDURES F. Check. auxiliary relay. (1Y or 2Y) H. Check fuse on the P.C.B. Ass’y in the indoor unit. G. Check indoor fan motor thermal protector (49FMI) • Disconnect the socket from 9P (WHT) connector. (XS T ype only) 0620_X_S • Check coil resistance of auxiliary relay. (1Y or 2Y) • Check the continuity be[...]

  • Page 55

    – 55 – SM830078 12. SER VICE PR OCEDURES 3) Outdoor Unit does not Run. A. Check COOL / FAN selector switch in the remote control unit. B. Check set temperature. 0624_X_S Try to lower set temperature by Temperature setting button “COOLER”. • Set “Operation selector” switch to TEST in the indoor unit. YES Outdoor unit runs. Is room temp[...]

  • Page 56

    – 56 – SM830078 12. SER VICE PROCEDURES C. Check compressor motor magnetic contactor. F. Check float switch. (XS Type only) • Refer to “2-3 Drain Pump Control” D. Check indoor unit P.C.B. 1036_X_S • Check voltage between terminals L1 and L2 at terminal plate. • Check P.C.B. Ass’y. No voltage appears. P.C.B. Ass’y is defective. E. [...]

  • Page 57

    – 57 – SM830078 12. SER VICE PR OCEDURES 5) Some Part does not Operate. A. Indoor fan does not run. 4) Indoor Unit does not Run. (Indoor fan and louver motor do not run.) B. Louver motor does not run. • Check resistance of fan motor winding. • Check fan motor capacitor. OK Relay RY1 or RY2 on the P.C.B. Ass’y is defective. • Check fan r[...]

  • Page 58

    – 58 – SM830078 12. SER VICE PROCEDURES 7) Outdoor Fan Speed is not Switched from High to Low even when the Outdoor Temperature Falls below 78 ° F. (C4232 Type) 6) Outdoor Fan does not Run. 8) Outdoor Fan Speed is not Switched from High to Med even when the Outdoor Temperature Falls below 77 ° F. Outdoor Fan Speed is not Switched from Med to [...]

  • Page 59

    – 59 – SM830078 12. SER VICE PR OCEDURES 9) Outdoor Fan does not Run for CL4232. 10) Compressor does not Run. • Check fuse on PCB Ass’y in outdoor unit for continuity. • Check resistance of primary winding of transformer. (TR) 1038_X_S If fuse blows, • Check PTC. • Check compressor motor capacitor (RC1). Wait for 30 minutes until com-[...]

  • Page 60

    – 60 – SM830078 12. SER VICE PROCEDURES 11) Poor Cooling 12) Excessive Cooling. Check installation position of remote control unit. • Does cool air from air condi- tioner reach remote control unit directly ? • Is wide tube between indoor unit and outdoor unit insulated ? 1040_X_S • Measure temperatures of suction and discharge air of indo[...]

  • Page 61

    – 61 – SM830078 12. SER VICE PR OCEDURES (2) A Sensor is Defective 1 1 1 1 1 Indoor (heat exchanger) coil temp. Sensor is defective. (a) Open (=No continuity in sensor) Compressor and outdoor fan repeat ON for 10 minutes and OFF for 6 minutes when sensor opens. (b) Short “Freeze Prevention” does not operate when dehumidified water is frozen[...]

  • Page 62

    – 62 – SM830078 12. SER VICE PROCEDURES (4) Checking the Electrical Components 1) Measurement of Insulation Resistance • The electrical insulation is acceptable when the resistance exceeds 1 M Ω . 1 1 1 1 1 Power Supply Wires Clamp the earthed wire of the Power Supply wires with a lead clip of the insu- lation resistance tester and measure [...]

  • Page 63

    – 63 – SM830078 12. SER VICE PR OCEDURES 2) Checking the Protective Devices • Disconnect the connector, which consists of P (plug) and S (socket) when you want to check the protective device. • Then check continuity among plug’s (and/or socket’s) terminal as in Fig. 17 . • Normality of the protective device can be judged by the follow[...]

  • Page 64

    – 64 – SM830078 12. SER VICE PROCEDURES 3) Checking the Electrical Parts 1 1 1 1 1 Power transformer (TR1) ................. Indoor unit *Measure the coil resistance. • Primary 230-208 V ; Measure the resistance between two WHT lead wire terminals of socket connected to power transformer. • Secondary 10.6 V ; Measure the resistance between [...]

  • Page 65

    – 65 – SM830078 12. SER VICE PR OCEDURES 6 6 6 6 6 Continuity of fuse on P.C.B. Ass’y • Check for continuity using a multimeter as shown in Fig. 19. Method Used to Replace Fuse on PCB Ass’y 1. Remove the PCB Ass’y from the electri- cal component box. 2. Remove the fuse from PCB Ass’y using pliers while heating the soldered leads on th[...]

  • Page 66

    SANYO FISHER Service Company CENTRAL REGION 1739 Sands Place, Suite G Marietta, GA 30067 Phone: (770) 951-8284 Fax: (770) 951-2077 Jun. / ’2000 Printed in U.S.A. • The specifications, designs, and information in this brochure are subject to change without notice.[...]