TECHNICAL DATA & SERVICE MANUAL FILE NO. XS4232 / C4232, CL4232 TS4232 / C4232, CL4232 SPLIT SYSTEM AIR CONDITIONER INDOOR MODEL No. XS4232 TS4232 PRODUCT CODE No. 854 016 10 854 016 09 OUTDOOR MODEL No. PRODUCT CODE No. C4232 854 016 12 CL4232 854 016 11 C4232 854 016 12 CL4232 854 016 11 Indoor Unit Outdoor Unit XS4232 C4232 CL4232 TS4232 85464869178000 REFERENCE NO.
Important Please Read Before Starting When Installing …………………………………………………………………… 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. …In a Room Properly insulate any tubing run inside a room to prevent “sweating” that can cause dripping and water damage to walls and floors.
Table of Contents 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. OPERATING RANGE ....................................................................................... 5 SPECIFICATIONS ............................................................................................ 6 (1) Unit Specifications ...................................................................................... 6 (2) Major Component Specifications .............................................................. 10 (A) Indoor Unit ...
Introduction: Read Me First! 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 explanations to help you find and repair problems. ❑ Section 1: Specifications, tells you about the physical and electrical make up of the unit, as well as its heating and cooling capacities.
1. OPERATING RANGE XS4232, TS4232 / C4232 Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp. Maximum Minimum 95 °F DB / 71 °F WB 67 °F DB / 57 °F WB 115 °F DB 67 °F DB XS4232, TS4232 / CL4232 Temperature Indoor Air Intake Temp. Outdoor Air Intake Temp.
2. SPECIFICATIONS (1) Unit Specifications MODEL No. POWER SOURCE PERFORMANCE Capacity Indoor Unit Outdoor Unit BTU / h kW cu.ft. / min. Pints / h Air circulation (Hi) Moisture removal (High) ELECTRICAL RATINGS Voltage rating VAC Available voltage range VAC Running amperes* A Max. running amperes** A Power input W Power factor % S.E.E.R BTU / Wh Max.
2. SPECIFICATIONS (1) Unit Specifications MODEL No. POWER SOURCE PERFORMANCE Capacity Indoor Unit Outdoor Unit BTU / h kW cu.ft. / min. Pints / h Air circulation (Hi) Moisture removal (High) ELECTRICAL RATINGS Voltage rating VAC Available voltage range VAC Running amperes* A Max. running amperes** A Power input W Power factor % S.E.E.R BTU / Wh Max.
2. SPECIFICATIONS (1) Unit Specifications MODEL No. Indoor Unit TS4232 Outdoor Unit C4232 POWER 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 removal (High) Pints / h 14.8 14.6 Voltage rating VAC 230 Available voltage range VAC ELECTRICAL RATINGS 208 187 - 253 Running amperes* A 20.6 21.0 Max. running amperes** A 21.4 22.
2. SPECIFICATIONS (1) Unit Specifications MODEL No. Indoor Unit TS4232 Outdoor Unit CL4232 POWER 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 removal (High) Pints / h 14.8 14.6 Voltage rating VAC 230 Available voltage range VAC ELECTRICAL RATINGS 208 187 - 253 Running amperes* A 20.6 21.0 Max. running amperes** A 21.4 22.
2. SPECIFICATIONS (2) Major Component Specifications (A) Indoor Unit 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 Fan (Number … diameter) SW - X363GS in. (mm) Turbo (1…19-9/32 (490)) Fan motor Model SFG6X - 61A3P Source 230 - 208 V / 1 phase / 60 Hz No. of pole … r.p.m.
2. SPECIFICATIONS (2) Major Component Specifications (A) Indoor Unit 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 Fan (Number … diameter) SW - X363GS in. (mm) Centrifugal (4 ... 5-29/32(150)) Fan motor Model KFG4X - 101C6P Source 230 - 208 V / 1 phase / 60 Hz No. of pole … r.p.m.
2. SPECIFICATIONS (2) Major Component Specifications (B) Outdoor Unit 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 (Ambient temperature 77 °F) Ω R - W : 0.475 , S - W : 1.850 Safety device Internal type Overload relay models Operating temperature — Open °F 320 ± Close °F 189 ± 20 A — VAC, µF 400 V, 50 µF (kg) R22 : 9.
2. SPECIFICATIONS (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 Compressor oil cc 1,240 Coil resistance (Ambient temperature 77 °F) Ω R – W : 0.475 , S – W : 1.
2. SPECIFICATIONS (3) Other Component Specifications (A) Indoor Unit MODEL No. XS4232 Power Transformer Rated ATR – I104A Primary AC 220 V, 60 Hz Secondary 10.6 V, 0.93 A Capacity 9.85 VAC Coil resistance (Ambient temprature 77 °F) Ω Thermistor cut off temperature °F WHT - WHT , BRN - BRN : 0.42 PBC - 41E - S36 kΩ 14 °F : 23.7 23 °F : 18.8 32 °F : 15.0 Thermistor (Room or coil sensor) Coil resistance 101 266 Thermistor (Coil sensor) Coil resistance : , , , 41 °F : 12.1 50 °F : 9.
2. SPECIFICATIONS (3) Other Component Specifications (A) Indoor Unit MODEL No. TS4232 Power Transformer Rated ATR – I104A Primary AC 220 V, 60 Hz Secondary 10.6 V, 0.93 A Capacity 9.85 VAC Coil resistance (Ambient temprature 77 °F) Ω Thermistor cut off temperature °F WHT - WHT , BRN - BRN : 0.42 PBC - 41E - S36 kΩ 14 °F : 23.7 23 °F : 18.8 32 °F : 15.0 Thermistor (Room or coil sensor) Coil resistance 101 266 Thermistor (Coil sensor) Coil resistance : , , , 41 °F : 12.1 50 °F : 9.
2. SPECIFICATIONS (3) Other Component Specifications (B) Outdoor Unit MODEL No. C4232 Compressor Motor Magnetic Contactor FC - 2SUL Coil rated Coil resistance (at 68 °F) AC 240 V, 60 Hz Ω 350 ± 10 % Contact rated (Main) AC 240 V, 35 A Contact rated (Auxiliary) AC 240 V, 3 A Power Relay HH62S Coil rated Coil resistance (at 77 °F) AC 240 V, 60 Hz kΩ 17.
2. SPECIFICATIONS (3) Other Component Specifications (B) Outdoor Unit MODEL No. CL4232 Compressor Motor Magnetic Contactor FC - 2SUL Coil rated Coil resistance (at 68 °F) AC 240 V, 60 Hz Ω 350 ± 10 % Contact rated (Main) AC 240 V, 35 A Contact rated (Auxiliary) AC 240 V, 3 A Power Relay HH62S Coil rated Coil resistance (at 77 °F) AC 240 V, 60 Hz kΩ 17.2 Contact rated AC 220 V, 5 A Power Transformer ATR - I35B Rated Primary AC 220 V, 60 Hz Secondary 14 V, 0.2 A Capacity 2.
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3. DIMENSIONAL DATA Outdoor Unit: C4232, CL4232 4-21/64 15-3/4 13-3/8 14-31/32 1-31/32 13/32 26 1-31/32 1-3/16 6-11/16 37 23-29/32 22-27/32 48-5/8 (2) 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.
4. COOLING CAPACITY 1 Indoor Unit: XS4232 Outdoor Unit: C4232, CL4232 • 230V / 1 phase / 60Hz RATING CAPACITY : 42,000 BTU / h AIR FLOW RATE : EVAPORATOR ENT. TEMP. °F (°C) WB 980 CFM CONDENSER AMBIENT TEMP. °F (°C) DB 75 (23.9) 85 (29.4) 95 (35.0) 105 (40.6) 115 (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 23,810 59 76(24.4) SHC 32,330 31,160 29,860 28,440 26,920 (15.0) 80(26.
4. COOLING CAPACITY 1 Indoor Unit: XS4232 Outdoor Unit: C4232, CL4232 • 208V / 1 phase / 60Hz RATING CAPACITY : 40,500 BTU / h AIR FLOW RATE : EVAPORATOR ENT. TEMP. °F (°C) WB 880 CFM CONDENSER AMBIENT TEMP. °F (°C) DB 75 (23.9) 85 (29.4) 95 (35.0) 105 (40.6) 115 (46.1) TC 41,030 39,040 36,770 34,220 31,390 CI 2.97 3.24 3.53 3.95 4.37 72(22.2) SHC 27,990 26,830 25,550 24,150 22,650 59 76(24.4) SHC 30,830 29,680 28,400 27,000 25,500 (15.0) 80(26.
4. COOLING CAPACITY 2 Indoor Unit: TS4232 Outdoor Unit: C4232, CL4232 • 230V / 1 phase / 60Hz RATING CAPACITY : 42,000 BTU / h AIR FLOW RATE : EVAPORATOR ENT. TEMP. °F (°C) WB 900 CFM CONDENSER AMBIENT TEMP. °F (°C) DB 75 (23.9) 85 (29.4) 95 (35.0) 105 (40.6) 115 (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 24,020 59 76(24.4) SHC 32,550 31,390 30,110 28,700 27,190 (15.0) 80(26.
4. COOLING CAPACITY 2 Indoor Unit: TS4232 Outdoor Unit: C4232, CL4232 • 208V / 1 phase / 60Hz RATING CAPACITY : 40,500 BTU / h AIR FLOW RATE : EVAPORATOR ENT. TEMP. °F (°C) WB 800 CFM CONDENSER AMBIENT TEMP. °F (°C) DB 75 (23.9) 85 (29.4) 95 (35.0) 105 (40.6) 115 (46.1) TC 41,030 39,040 36,770 34,220 31,390 CI 2.97 3.24 3.53 3.95 4.37 72(22.2) SHC 28,050 26,900 25,620 24,230 22,740 59 76(24.4) SHC 30,910 29,760 28,490 27,100 25,610 (15.0) 80(26.
5. PERFORMANCE CHARTS Operating Current 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 Outdoor fan speed High Low Indoor temp. °F (°C) 85 (30) 80 (27) 75 (24) 70 (21) 23 Operating current (A) 22 21 20 19 18 17 16 59 (15) 68 (20) 77 (25) 86 (30) 95 (35) 104 (40) Outdoor ambient temp. °F (°C) 1792_X_S 208V Indoor temp.
5. PERFORMANCE CHARTS (1) Operating Current 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 Outdoor fan speed High Low Indoor temp. °F (°C) 23 85 (30) 80 (27) 75 (24) 70 (21) Operating current (A) 22 21 20 19 18 17 16 59 (15) 68 (20) 77 (25) 86 (30) 95 (35) 104 (40) Outdoor ambient temp. °F (°C) 1794_X_S 208V Indoor temp.
5. PERFORMANCE CHARTS Operating Current 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 STOP / Med 23 Outdoor fan speed (Upper / Lower) Low / Low Med / Med Indoor temp.
5. PERFORMANCE CHARTS (1) Operating Current 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 STOP / Med 23 Outdoor fan speed (Upper / Lower) Low / Low Med / Med Indoor temp.
5. PERFORMANCE CHARTS High and Low Pressure 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 Outdoor fan speed High Low Indoor temp. °F (°C) 340 Discharge pressure (psig) 320 300 85 (30) 80 (27) 75 (24) 70 (21) 280 260 240 220 200 180 160 59 (15) 68 (20) 77 (25) 86 (30) 95 (35) 104 (40) Outdoor ambient temp.
5. PERFORMANCE CHARTS (2) High and Low Pressure 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 STOP / Med 340 Outdoor fan speed (Upper / Lower) Low / Low Med / Med Indoor temp.
6. AIR THROW DISTANCE CHART MODEL: XS4232 HORIZONTAL DISTANCE (ft.) 0 3 7 10 13 17 20 AXIS AIR VELOCITY (ft./sec) VERTICAL DISTANCE (ft.) 0 3 AXIS AIR VELOCITY 7 10 13 COOLING FAN SPEED HIGH ROOM AIR TEMP. 80°F LOUVER ANGLE 30° : COOLING 1428_X_S MODEL: TS4232 Horizontal distance (ft.) 0 5 10 15 20 25 30 33 Axis air velocity (ft./sec.) Vertical distance (ft.) 0 Axis air velocity 5 10 15 1454_X_S COOLING FAN SPEED HIGH ROOM AIR TEMP.
7. REFRIGERANT FLOW DIAGRAM Indoor Unit: 4232 Type Outdoor Unit: C4232, CL4232 Compressor O. D. 3/4" (19.05 mm) Condenser HP Accumulator High pressure switch Capillary Evaporator Wide tube service valve Narrow tube service valve Strainer O. D. 3/8" (9.52 mm) Sub-condenser 1802_X_S Insulation of Refrigerant Tubing IMPORTANT CAUTION When installing “CL” models, insulate both wide and narrow tube. When outdoor temperature is low, condensation can also from on a narrow tube.
8. INSTALLATION INSTRUCTIONS 1) Tubing Length • Refrigerant tubing between the indoor and outdoor units should be kept as short as possible. Tubing length (L) INDOOR UNIT • Select and decide the installation location so that the length of the refrigerant tubing will be within the limits given in Table 1. Elevation difference (H) OUTDOOR UNIT 0711_M_I Fig. 1 Table 1 Model Tubing Data Tubing size outer dia. Narrow tube in. (mm) 3/8 (9.52) Wide tube in. (mm) 3/4 (19.
8. INSTALLATION INSTRUCTIONS 2) Selecting the Installation Site Indoor Unit Ceiling-Mounted Type 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 directly. This may cause “sweating” on the air discharge ports, causing them to spray or drip.
8. INSTALLATION INSTRUCTIONS Exhaust fan Outdoor Unit Hot air AVOID: Heat source Outdoor unit ã heat sources, exhaust fans, etc. (Fig. 2) ã damp, humid or uneven locations. DO: 0591_C_I ã choose a place as cool as possible. ã choose a place that is well ventilated and outside air temperature does not exceed maximum 115°F constantly. ã allow enough room around the unit for air intake/ exhaust and possible maintenance. (Fig.
8. INSTALLATION 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 sidewalk and discharged hot air can annoy the passers-by. Refer to Fig. 5. Air discharge Wind Shield for “CL” Model IMPORTANT It is recommended to use wind shields for “CL” model (Fig. 6).
8. INSTALLATION INSTRUCTIONS 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 exclusively for each unit, and a power supply disconnect and circuit breaker for overcurrent protection should be provided in the exclusive line. (3) To prevent possible hazards from insulation failure, the unit must be grounded.
9. ELECTRICAL DATA ● Electrical characteristics Indoor model: XS4232 / Outdoor model: C4232, CL4232 Indoor Unit Outdoor Unit Complete Unit Fan Motor Performance at Fan Motor Compressor 230 - 208 V / 1 phase / 60 Hz A 230 - 208 V / 1 phase / 60 Hz 0.9 - 0.8 1.8 - 1.8 18.1 - 18.5 20.8 - 21.1 0.2 - 0.16 0.36 - 0.34 3.67 - 3.62 4.23 - 4.12 0.9 - 0.8 1.8 - 1.8 21.44 - 22.7 24.1 - 25.3 0.2 - 0.16 0.36 - 0.34 4.49 - 4.48 5.05 - 4.
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To Indoor Unit G L2 L1 L2 L1 4 G 2 PNK WHT WHT RED RED 8 7 WHT RED BRN 1 4 63PH Connector 2P (WHT) 3 5 6 2 1 2 1 2 P S A2 52C A1 U R W V R S 13 41 BRN BRN RC2 BRN H RED Connector P 8P (WHT) S RED 14 42 RC1 T S CM C RED 1 Earth Terminal Earth Terminal Power Supply 60Hz 1PH 208 V / 230 V 2Y BLK BLK Terminal Plate (6P) WHT C GRY 23S L 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 BRN FMO1 RED 5 1 RC3 4 6 2 1 2 3 4 5 6 P 7 8 1 2 3 4 5 6 S 7 8 BLU BLK FMO
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To Indoor Unit G L2 L1 Earth Terminal Power Supply 60Hz 1PH 208 V / 230 V L2 L1 4 WHT RED WHT A2 52C A1 U R C V S S CM R W T 42 14 RC1 41 13 GRY RED BLK GRY CH P 1 2 Connector S 1 2 2P (WHT) 8 1Y 7 1 4 6 2 RC2 Earth Terminal BRN BLK GRN/YEL 63PH FMO1 49FO1 Connector 1 2 3 4 5 6 7 8 P 8P (WHT) 1 2 3 4 5 6 7 8 S P 1 2 Connector S 1 2 2P (WHT) 3 5 GRN/YEL E 8 3Y 7 8 3 5 WHT 3 5 3P (YEL) HGBV 1 3 BRN 7 4Y BRN RED RED 1 3P (BLU) 3 MGSW GRY ORG W
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11. PROCESSES AND FUNCTIONS (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 temperature changes and the thermostat activates the compressor to start (thermo ON) or stop (thermo OFF). Fig. 8 shows about the cooling cycle.
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. FREEZE FREEZE PREVENTION PREVENTION MORE THAN 10 MINUTES 6 MINUTES 10 MINUTES 6 MINUTES INDOOR COIL TEMPERATURE (THERMO ON) 30°F (THERMO OFF) ON OFF ON OFF ON ON OFF ON OFF ON COMPRESSOR OUTDOOR FAN SET SPEED INDOOR FAN 1029_X_S Fig.
11. PROCESSES AND FUNCTIONS 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 outdoor temperature rises to 82 °F, the outdoor fan is set from LOW to HIGH automatically.
12. SERVICE PROCEDURES (1) Troubleshooting 1) 1 2 Check before and after Troubleshooting Many problems may happen because of wiring or power supply problems, so you should check these areas first. Problems here can cause false results in some of the other tests, and so should be corrected first. Check power supply wiring (a) Single-phase ❑ Check that power supply wires are correctly connected to terminal No. 1 through No.
12. SERVICE PROCEDURES 2) Air Conditioner does not Operate 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 MΩ or less, it is a defect of insulation. (Example) 2 3 Ground + + + + 4 + Power supply cords Outdoor unit L1 1 L2 2 G G 4 + Circuit breaker + + 1 Indoor unit 1 2 G 4 Inter-unit power line *Set the circuit breaker to OFF.
12. SERVICE PROCEDURES (b) Circuit breaker trips in several minutes after turning the air conditioner on. • There is a possibility of short circuit. • Check capacity of circuit breaker. Replace it with a suitable one. (= larger capacity) NO Is capacity of circuit breaker sufficient ? • Check resistance of outdoor fan motor winding. • Check resistance of compressor motor winding. 0614_X_S 2 Neither indoor unit nor outdoor unit runs. A. Power is not supplied • Check power supply.
12. SERVICE PROCEDURES C. Check “Operation selector” switch in the indoor unit. • Has “Operation selector” switch been set to ON position ? IND. LAMP Ass’y or P.C.B. Ass’y in the indoor unit is defective. YES NO Set “Operation selector” switch to ON. But neither unit runs. Switch Ass’y or P.C.B. Ass’y in the indoor unit is defective. 0617_X_S D. Check compressor motor protectors. (a) High pressure switch (63PH) Disconnect the socket from 2P (WHT) connector. Check the continuity between No.1 and No.
12. SERVICE PROCEDURES F. Check. auxiliary relay. (1Y or 2Y) • Check coil resistance of auxiliary relay. (1Y or 2Y) 0620_X_S G. Check indoor fan motor thermal protector (49FMI) • Disconnect the socket from 9P (WHT) connector. • Check the continuity between No. 8 and No.9 poles of the 9P socket. No continuity. The thermal protector (49FMI) is operated. • Check fan rotation. Rotate the fan gently once or twice by hand. Fan cannot be rotated. OK • Check fan motor capacitor.
12. SERVICE PROCEDURES 3) Outdoor Unit does not Run. A. Check COOL / FAN selector switch in the remote control unit. • Is COOL/FAN selector switch NO set to COOL ? Set to COOL. 0623_X_S B. Check set temperature. Try to lower set temperature by Temperature setting button “COOLER”. YES • Set “Operation selector” switch to TEST in the indoor unit. Outdoor unit runs. Is room temperature too low ? NO • Try to run both indoor and outdoor units with another remote control unit.
12. SERVICE PROCEDURES C. Check compressor motor magnetic contactor. • Check coil resistance of compressor motor magnetic contactor. (52C) 1035_X_S E. Check outdoor unit P.C.B. (CL3632 Type) D. Check indoor unit P.C.B. • Check P.C.B. Ass’y. • Check P.C.B. Ass’y. • Check voltage between terminals No.2 and No.4 at terminal plate. • Check voltage between terminals L1 and L2 at terminal plate. No voltage appears. No voltage appears. P.C.B. Ass’y is defective. P.C.B. Ass’y is defective.
12. SERVICE PROCEDURES 4) Indoor Unit does not Run. (Indoor fan and louver motor do not run.) P.C.B. Ass’y is defective. 0630_X_S 5) Some Part does not Operate. A. Indoor fan does not run. • Check fan rotation. Rotate the fan gently once or twice by hand. Fan cannot be rotated. Check fan casing for foreign matter on the inside. Remove foreign matter or repair. Fan motor burnout or foreign matter in bearing. Repair or replace. • Check resistance of fan motor winding.
12. SERVICE PROCEDURES 6) Outdoor Fan does not Run. • Check fan rotation. Rotate the fan gently once or twice by hand. Fan cannot be rotated. • Check fan casing for foreign matter on the inside. Remove foreign matter or repair. • Fan motor burnout or foreign matter in bearing. Repair or replace. • Check resistance of fan motor winding. OK • Check fan motor capacitor • Check continuity between terminals on the compressor motor magnetic contactor.
12. SERVICE PROCEDURES 9) Outdoor Fan does not Run for CL4232. • Check fuse on PCB Ass’y in outdoor unit for continuity. If fuse blows, • Check resistance of primary winding of transformer. (TR) 1038_X_S 10) Compressor does not Run. • Check compressor motor capacitor (RC1). Wait for 30 minutes until compressor has cooled. OK Compressor runs. Compressor internal thermal protector is operated. • Check PTC. OK • Check resistance of compressor motor winding. • Check power supply voltage.
12. SERVICE PROCEDURES 11) Poor Cooling Check installation position of remote control unit. • Does cool air from air conditioner reach remote control unit directly ? • Is wide tube between indoor unit and outdoor unit insulated ? YES NO Change installation position of remote control unit. Insulate wide tube and then execute taping with narrow tube. YES • Measure temperatures of suction and discharge air of indoor unit. Temperature difference Possibility of is small. refrigerant shortage.
12. SERVICE PROCEDURES (2) A Sensor is Defective 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 on the indoor coil. 2 Room temp. Sensor (in the remote control unit) is defective. (a) Open (=No continuity in sensor) Neither outdoor fan nor compressor runs.
12. SERVICE PROCEDURES (4) Earthed wire Checking the Electrical Components 1) Clip Measurement of Insulation Resistance • The electrical insulation is acceptable when the resistance exceeds 1 MΩ. 1 Probe Insulation tester Power Supply Wires Fig. 13 0638_X_S Clamp the earthed wire of the Power Supply wires with a lead clip of the insulation resistance tester and measure the resistance by placing a probe on either of the power wires. (Fig.
12. SERVICE PROCEDURES 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 following table. The Protective Device is proved normal if there is a continuity between terminals. socket Multimeter Ω Fig. 17 0642_X_S 1 Indoor fan motor thermal protector (49FI) . . . . . .
12. SERVICE PROCEDURES 3) Checking the Electrical Parts 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 two BRN lead wires. Refer to “1–3–(A) Other component specifications”. 2 Power transformer (TR) ................. Outdoor unit *Measure the coil resistance.
12. SERVICE PROCEDURES 6 Continuity of fuse on P.C.B. Ass’y • Check for continuity using a multimeter as shown in Fig. 19. NOTE Method Used to Replace Fuse on PCB Ass’y Fuse 1. Remove the PCB Ass’y from the electrical component box. 1042_X_S Fig. 19 2. Remove the fuse from PCB Ass’y using pliers while heating the soldered leads on the back side of the PCB Ass’y with a soldering iron (30W or 60W). (Fig. 20) Soldering iron 3.
• The specifications, designs, and information in this brochure are subject to change without notice. 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.
