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SM830092

10. ELECTRICAL WIRING DIAGRAMS

(1)

Indoor Unit

KS2462R

8 7 6 5 4 3 2 1
8 7 6 5 4 3 2 1

1
2
3
4
5

FLP

CONNECTOR

FLAP2
5P [BLK]

FLAP1
5P [WHT]

LAMP
4P [WHT]

RECEIVER
3P [WHT]

SEC
2P [WHT]

PRY
3P [RED]

SUP
5P [WHT]

ROOM/COIL
4P [WHT]

[WHT] [GRN]

[BLK]

WHT

BLU
BLU
BLU
BLU

1
2

1
3

3
2
1

1
2
3
4

1
2
3
4
5
6
7

1
2
3
4

1 3 5
1 3 5

OUTDOOR UNIT

TERMINAL

PLATE

WHT

GRY

WHT

BLK

GRN

RED

WHT

BRN
BRN

GRY

WHT

BLK
BLK
BLK
BLK

GRY
GRY
GRY

FMI

PNK

GRN

GRN / YEL

PNK

BRN

WHT

ORG

YEL

BLK

BRN

GRY

WHT

V LT

ORG

YEL

BLK

FAN MOTOR

WER

TRANSFORMER

IND LAMP ASSY

CAPACITOR

1
2
3
4
5

FLP

CONNECTOR

[WHT]

CONNECTOR

[WHT]

FLAP MOTOR [UPPER]

CONTROLLER

FLAP MOTOR [LOWER]

ROOM THERMISTOR (TH2)

COIL THERMISTOR (TH1)

WHT

BLU
BLU
BLU
BLU

8512-5253-714XX-1 (KS2432A)

• Electric Wiring Diagram

Содержание C2462R

Страница 1: ...or Unit Outdoor Unit SPLIT SYSTEM AIR CONDITIONER TECHNICAL DATA SERVICE MANUAL FILE NO INDOOR MODEL No PRODUCT CODE No OUTDOOR MODEL No PRODUCT CODE No KS2462R 854 019 00 C2462R 854 019 01 CL2462R 854 019 02 KS2462R C2462R CL2462R REFERENCE NO SM830092 ...

Страница 2: ...stove gas water heater electric room heater or other heat source it can cause the generation of poisonous gas 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 operatio...

Страница 3: ...nit 14 5 PERFORMANCE CHARTS 17 1 Operating Current 17 2 High and Low Pressure 19 6 AIR THROW DISTANCE CHART 21 7 REFRIGERANT FLOW DIAGRAM 22 8 INSTALLATION INSTRUCTIONS 23 9 ELECTRICAL DATA 29 10 ELECTRICAL WIRING DIAGRAMS 30 1 Indoor Unit 30 2 Outdoor Unit 31 11 PROCESSES AND FUNCTIONS 35 1 Room Temperature Control 35 2 Dry Operation 36 3 Freeze Prevention 37 4 Outdoor Fan Speed Control 38 12 SER...

Страница 4: ...CL2462R Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Maximum 95 F DB 71 F WB 115 F DB Minimum 67 F DB 57 F WB 67 F DB Temperature Indoor Air Intake Temp Outdoor Air Intake Temp Maximum 95 F DB 71 F WB 115 F DB Minimum 67 F DB 57 F WB 0 F DB ...

Страница 5: ...ll Operation sound Indoor Hi Me Lo dB A 48 42 38 Outdoor Hi dB A 55 REFRIGERANT TUBING Limit of tubing length ft m ft m ft m in mm in mm 132 40 Limit of tubing length at shipment 23 7 50 15 Limit of elevation difference between the two units Refrigerant tube Narrow tube 3 8 9 52 outer diameter Wide tube 3 4 19 05 Refrigerant amount at shipment lbs kg R410A 6 6 3 DIMENSIONS WEIGHT Indoor unit Outdo...

Страница 6: ...r Scroll Operation sound Indoor Hi Me Lo dB A 48 42 38 Outdoor Hi dB A 55 REFRIGERANT TUBING Limit of tubing length ft m ft m ft m in mm in mm 132 40 Limit of tubing length at shipment 23 7 50 15 Limit of elevation difference between the two units Refrigerant tube Narrow tube 3 8 9 52 outer diameter Wide tube 3 4 19 05 Refrigerant amount at shipment lbs kg R410A 6 6 3 DIMENSIONS WEIGHT Indoor unit...

Страница 7: ...ole r p m 230 V High rpm 4 1 365 Nominal output W 30 Coil resistance Ω BRW WHT 161 2 ORG YEL 26 9 Ambient temperature 68 F WHT VLT 11 6 YEL BLK 22 8 VLT ORG 68 7 BLK PNK 115 2 Safety device Internal Operating temperature Open F 266 9 Close F 181 27 Run capacitor VAC µF 440 V 1 5 µF Heat exchanger Coil Aluminum plate fin Copper tube Rows Fins per inch 2 19 5 Face area ft 2 m2 2 30 0 214 Flap Motor ...

Страница 8: ... A Run capacitor VAC µF 400 V 40 µF Refrigerant amount charged at shipment lbs kg R410A 6 6 3 High pressure switch ACB 1UB24W Set pressure OFF MPa 4 15 ON MPa 3 15 0 3 Fan Propeller Number diameter in mm 1 18 3 32 460 Fan speeds 2 AUTO Fan motor Model KFC6T 91D6P Source 230 208 V 1 phase 60 Hz No of pole rpm 230 V High rpm 6 879 Nominal output W 110 Internal Coil resistance Ω BRW WHT 67 14 VLT YEL...

Страница 9: ...acitor VAC µF 400 V 40 µF Crank case heater V W 230 V 30 W Refrigerant amount charged at shipment lbs kg R410A 6 6 3 High pressure switch ACB 1UB24W Set pressure OFF MPa 4 15 ON MPa 3 15 0 3 Fan Propeller Number diameter in mm 1 18 3 32 460 Fan speeds 3 AUTO Fan motor Model KFC6T 91D6P Source 230 208 V 1 phase 60 Hz No of pole rpm 230 V High 6 879 Nominal output W 110 Coil resistance Ω BRN WHT 67 ...

Страница 10: ...V 60 Hz Secondary AC19 V 0 5 A Capacity 9 5 VA Coil resistance Ω Primary WHT WHT 457 5 Ambient temprature 77 F Secondary BRN BRN 3 9 Thermistor cut off temperature 277 F Thermistor Coil sensor DTN TKS131B Coil resistance kΩ 32 F 15 0 2 Thermistor Room sensor DTN TKS128B Coil resistance kΩ 77 F 5 0 3 Lamp Ass y IND K301AH Flap Motor MP24GA2 ...

Страница 11: ... Coil rated AC 240 V 60 Hz Coil resistance at 68 F Ω 587 5 Contact rated Main AC 240 V 26 A Contact rated Auxiliary AC 240 V 3 A Power Relay HH62S Coil rated AC 240 V 60 Hz Coil resistance at 68 F kΩ 17 2 Contact rated AC 220 V 5 A Thermostat Coil sensor YTB 4U305F Operating Temperature F 79 3 OFF 75 ON Contact rated 200 to 240 V 1 A 3 1 ...

Страница 12: ... AC 240 V 60 Hz Coil resistance at 77 F 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 8 VAC Coil resistance at 78 F Ω WHT WHT 482 5 BRN BRN 3 95 Thermal cut off temperature F 266 Thermistor Outdoor Temp sensor PBC 41E S4 Coil resistance kΩ 14 F 23 7 50 F 9 7 23 F 18 8 68 F 6 5 32 F 15 0 86 F 4 4 41 F 12 1 104 F 3 1 113 F ...

Страница 13: ...A 1 Indoor Unit KS2462R 6 27 32 Center of tubing hole 2 places Narrow tube 3 8 ø9 52 Wide tube 3 4 ø19 05 8 31 32 Remote control unit 1 7 8 5 5 16 13 44 7 8 1 7 8 Drain hose O D 23 32 ø18 2 13 32 25 32 6 7 32 Dimension inch 2199_M_S ...

Страница 14: ...37 4 3 8 14 31 32 16 7 8 18 1 16 25 32 3 4 15 15 16 Dimension inch Hole for anchor bolt 4 R1 4 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 1 2 1 2 1 2 1 2 5 5 4 4 ...

Страница 15: ...22 810 24 500 27 110 1 83 15 400 17 100 18 870 20 570 22 260 28 300 1 85 13 170 14 870 16 640 18 330 20 030 29 940 1 87 10 990 12 680 14 450 16 150 30 620 1 9 10 120 11 900 13 590 15 290 17 850 24 520 1 97 16 740 18 430 20 210 21 900 23 600 25 760 2 14 660 16 360 18 130 19 820 21 520 28 780 2 05 10 450 12 140 13 920 15 610 29 540 2 08 9 680 11 450 13 150 14 840 17 310 27 000 2 02 12 510 14 210 15 ...

Страница 16: ...21 830 23 430 26 100 1 82 14 840 16 430 18 110 19 700 21 300 27 250 1 83 12 720 14 320 15 990 17 590 19 190 28 830 1 85 10 650 12 250 13 920 15 520 29 480 1 88 9 810 11 480 13 080 14 680 17 120 23 610 1 95 16 080 17 680 19 350 20 950 22 550 24 800 1 98 14 110 15 710 17 380 18 980 20 580 27 720 2 03 10 130 11 730 13 400 15 000 28 440 2 06 9 380 11 050 12 650 14 250 16 600 26 000 2 12 080 13 680 15 ...

Страница 17: ...e humidity 50 Indoor fan speed High 208V 1061_X_S Operating current A 85 30 80 27 75 24 70 21 12 13 14 8 9 7 10 11 59 68 77 86 95 104 15 20 25 30 35 40 Outdoor ambient temp F C Indoor temp F C Outdoor fan speed Low High 1062_X_S Operating current A 85 30 80 27 75 24 70 21 12 13 14 8 9 7 10 11 59 68 77 86 95 104 15 20 25 30 35 40 Outdoor ambient temp F C Indoor temp F C Outdoor fan speed Low High 2...

Страница 18: ... speed High 1063_X_S 70 21 85 30 80 27 75 24 Operating current A 12 13 14 9 7 8 10 11 Indoor temp F C Outdoor fan speed Med Low High 59 68 77 86 95 104 15 20 25 30 23 32 41 50 5 0 5 10 35 40 Outdoor ambient temp F C 1064_X_S 70 21 85 30 80 27 75 24 Operating current A 12 13 14 8 9 7 10 11 Indoor temp F C Outdoor fan speed Med Low High 59 68 77 86 95 104 15 20 25 30 23 32 41 50 5 0 5 10 35 40 Outdo...

Страница 19: ...ersus outdoor ambient temperature and indoor temperature Indoor relative humidity 50 Indoor fan speed High 1065_X_S 85 30 80 27 75 24 70 21 Discharge pressure psig 440 460 480 360 340 380 400 420 320 300 59 68 77 86 95 104 15 20 25 30 35 40 Outdoor ambient temp F C Indoor temp F C Outdoor fan speed Low High 1066_X_S Indoor temp F C Outdoor fan speed Low High Suction pressure psig 140 130 150 160 1...

Страница 20: ...mperature and indoor temperature Indoor relative humidity 50 Indoor fan speed High 230 208V 1067_X_S 85 30 80 27 75 24 70 21 Discharge pressure psig 460 480 500 360 340 380 400 420 320 300 59 68 77 86 95 104 15 20 25 30 23 32 41 50 5 0 5 10 35 40 Outdoor ambient temp F C Indoor temp F C Outdoor fan speed Med Low High Suction pressure psig 140 130 150 160 170 120 110 Indoor temp F C 85 30 80 27 75 ...

Страница 21: ...ART Horizontal distance ft Axis air velocity ft sec Vertical distance ft Room air temp 80 F 26 7 C Fan speed High 0 5 10 15 5 10 15 20 25 30 Flap angle 0 Axis air velocity 0 Flap angle 30 Axis air velocity 30 2200_M_S Indoor Unit KS2462R ...

Страница 22: ... D 3 8 9 52 mm O D 3 8 9 52 mm Evaporator Narrow tube service valve Wide tube service valve Indoor Unit Outdoor Unit HP High pressure switch LP LP Strainer Capillary tube 2201_M_S Evaporator Condenser Compressor Accumulator Sub condenser S Capillary HGBV O D 3 4 19 05mm Wide tube O D 3 4 19 05mm Narrow tube O D 3 8 9 52 mm O D 3 8 9 52 mm Strainer Capillary tube Narrow tube service valve Wide tube...

Страница 23: ...th becomes 23 to 132 ft max additional refrigerant R410A charge of 0 43 oz ft is required No additional charge of compressor oil is necessary 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 lengt...

Страница 24: ...priate position from which every corner of the room can be uniformly air conditioned select a location that will hold weight of the unit select a location where the tubing and drain pipe have the shortest run to the outside Fig 2 allow room for operation and maintenance as well as unrestricted air flow around the unit Fig 3a and 3b Install the unit within the maximum elevation difference above or ...

Страница 25: ...f more than 2 outdoor units are installed in the same location keep at least 3 meters away from the neighboring unit to avoid influence of air discharge Air discharge chamber for top discharge Install the air discharge chamber in the filed when it is difficult to keep a space of minimum 2 ft between the air discharge outlet and the obstacle the air discharge outlet is facing the sidewalk and disch...

Страница 26: ... the outdoor unit This unit is designed so that the fan of the outdoor unit runs at low speed when the air conditioner is operated at low outdoor air temperatures When the outdoor unit is exposed to strong wind the system pressure drops because of the freeze protector For outer dimensions of the wind shield see Fig 5c IMPORTANT Wind shield air discharge side Front 3 ø1 9 16 hole 6 ø15 64 hole 9 27...

Страница 27: ...e grounded 4 Each wiring connection must be done in accordance with the wiring system diagram Wrong wiring may cause the unit to misoperate or become damaged 5 Do not allow wiring to touch the refrigerant tubing compressor or any moving parts of the fan 6 Unauthorized changes in the internal wiring can be very dangerous The manufacturer will accept no repsonsibility for any damage or misoperation ...

Страница 28: ... AGW 14 C2462R CL2462R 64 ft AWG 12 35 A 132 ft 1 Refer to the Wiring System Diagrams See below diagram for the meaning of A and B AWG American Wire Gauge 1 2 G 4 1 2 4 G L1 L2 G Indoor Unit Outdoor Unit Ground B A Ground Disconnect SW Field supply To access the electrical component box open the air intake grille and remove the electrical component box cover Outdoor Unit C CL models Single phase 6...

Страница 29: ...2 02 2 00 2 25 2 24 Full load conditions A 0 38 0 37 0 90 0 90 11 1 12 4 12 4 13 7 kW 0 08 0 07 0 18 0 17 2 55 2 58 2 81 2 32 Starting amperes A 1 1 1 1 61 55 63 57 Electrical characteristics Indoor model KS2462R Outdoor model C2462R CL2462R Rating Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor Air Temperature 95 F DB Full Load Conditions Indoor Air Temperature 80 F DB 67 F WB Outdoor A...

Страница 30: ... 6 7 1 2 3 4 1 2 3 4 1 3 5 1 3 5 FROM OUTDOOR UNIT TERMINAL PLATE WHT GRY WHT WHT BLK GRN RED WHT BRN BRN GRY WHT BLK BLK BLK BLK GRY GRY GRY FMI PNK GRN G GRN YEL PNK BRN GRY WHT V LT ORG YEL BLK BRN GRY WHT VLT ORG YEL BLK FAN MOTOR P S G G G w FM HH H M L LL w w w w w w POWER TRANSFORMER IND LAMP ASSY CAPACITOR 1 2 G 4 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 FLP CONNECTOR WHT CONNECTOR WHT WHT ...

Страница 31: ...ER SUPPLY 60Hz 1ø 208V 230V TO INDOOR UNIT TERMINAL PLATE 6P 1 2 G 4 L1 L2 RED 63PH P S 1 2 1 2 WHT WHT RED BRN YEL BLK WHT BLK RED RED WHT Electric Wiring Diagram RED RC2 3 8 7 1 4 5 1Y 2 6 C H L 23S BLK RED BRN BRN RED BLU BLU FMO PNK BRN GRY GRY WHT VLT 3 2 2 3 8 8 1 1 P S 5 4 5 4 7 7 6 6 PNK BRN GRY GRY WHT VLT YEL L1 L2 G BLK BLK WHT BLK RED RED 854 2 5269 160 00 0 Outdoor Unit C2462R ...

Страница 32: ...gram Symbols Description CM FMO 49FO 52C 63PH 23S RC1 2 1Y 2Y Compressor Motor Outdoor Fan Motor Outdoor Fan Motor Thermal Protector Compressor Motor Magnetic Contactor High Pressure Switch 63PL Low Pressure Switch Fan Speed Control Thermostat Running Capacitor Auxiliary Relay Connector Terminal Base G 4 L1 L2 1 2 2 63PL 1 854 2 5269 160 00 0 Outdoor Unit C2462R ...

Страница 33: ... R B A S T 31 C R S 14 13 BLK WHT 52C CONTROLLER CR CL2432 3 1 E 2 1 3P BLU MGSW 3 1 TR AC230V AC208V 63PH AC14V BRN BRN BLK BLK WHT WHT RED RED 2 1 2P WHT SEC 2 1 2P WHT TEMP 3P WHT PRY 3 1 3P YEL HGBV 9P WHT FMO H COM M L 2 1 2 1 CH WHT WHT 2 1 2 1 S P S P 2P WHT 2P WHT BLK BLK 63PL 2 1 2 1 S P 2P GRN RED RED RED RED BRN WHT WHT TH 7 8 1Y 2 4 6 1 3 5 3 1 7 5 9 3P RED SUP ORG RED BLK WHT BLK RED ...

Страница 34: ...52C CH 2 63PH 63PL 1 HGBV Symbols Description CM CH FMO 49FO 52C HGBV TR TH RC1 2 RY1 3 1Y CR CL2432 F1 2 Compressor Motor Crankcase Heater Outdoor Fan Motor Outdoor Fan Motor Thermal Protector Compressor Motor Magnetic Contactor 63PH High Pressure Switch 63PL Low Pressure Switch Hot Gas Bypass Valve Power Transformer Thermistor Outdoor Temperature Running Capacitor Auxiliary Relay Outdoor Control...

Страница 35: ... minutes If you change the operation mode during the 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 1 F above the set temperature T T 1 F Compressor ON Thermo OFF When the room temperature is e...

Страница 36: ...r zone Both the indoor and outdoor units stop Room temp 59 F Dry A zone Compressor FMI indoor fan Continuous operation L low speed LL very low speed intermittent ventilation only while the compressor is ON Dry B zone Compressor FMI indoor fan Intermittent operation ON for 3 minutes and OFF for 9 minutes L low speed LL very low speed intermittent ventilation only while the compressor is ON 2213_M_S...

Страница 37: ...es 6 minutes T 4 F Indoor heat exch coil temp 30 F Compressor Indoor fan Room temp Thermo OFF Thermo ON Set temp T F More than 10 minutes More than 6 minutes Set speed 2214_M_S Fig 13 Chart Summary and Explanations When the compressor has been running for 6 minutes or more and the temperature of the indoor heat exchange coil falls below 30 F the control circuit stops the compressor for at least 6 ...

Страница 38: ... the outdoor temperature falls below 77 F the outdoor fan is set from HIGH to MED automatically When the outdoor temperature rises to 81 F the outdoor fan is set from MED to HIGH automatically When the outdoor temperature falls below 59 F the outdoor fan is set from MED to LOW automatically When the outdoor temperature rises to 63 F the outdoor fan is set from LOW to MED automatically When the out...

Страница 39: ...ified 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 touch any uninsulated live part that can cause ELECTRIC SHOCK 4 Check the lead wires and connectors in indoor and outdoor units Check that the sheath of lead wires is not damaged Check that the lead wires are firmly connected at the terminal plat...

Страница 40: ... outdoor unit is defective Execute rewiring Remove inter unit power line from the terminal plate in the outdoor unit Check insulation resistance of outdoor unit OK Remove inter unit power line from the terminal plate in the indoor unit Check insulation resistance of indoor unit OK Inter unit power lines are defective NO Insulation of outdoor unit is defective Check insulation resistance of electri...

Страница 41: ...ther remote control unit is defective OK 0615_X_S Check power supply Is power being supplied to outdoor unit Circuit breaker is tripped Power failure Reset the breaker Wait for recovery or consult power supply company NO B Check remote control unit Check capacity of circuit breaker NO Check resistance of outdoor fan motor winding 2218_X_S Is capacity of circuit breaker sufficient Check resistance ...

Страница 42: ...r air suction inlet of outdoor unit Check if outdoor fan rotates Refer to Only outdoor fan does not run NO Disconnect the socket from 2P WHT connector Check the continuity between No 1 and No 2 poles of the socket E Transformer in indoor unit Check resistance of transformer winding TR1 1033_X_S 0617_X_S Has Operation selector switch been set to ON position YES Set Operation selector switch to ON N...

Страница 43: ...k fuse on the P C B Ass y in the indoor unit 2219_X_S Check fuse on the P C B Ass y in the indoor unit for continuity Check resistance of primary and secondary winding of transformer Check resistance of indoor fan motor winding When the fuse blows OK OK Check coil of compressor motor magnetic contactor 52C P C B Ass y is defective OK ...

Страница 44: ... Is MODE selector button set to COOL NO Set to COOL 2221_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 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 ...

Страница 45: ...nals No 2 and No 4 at terminal plate Check P C B Ass y No voltage appears P C B Ass y is defective E Check outdoor unit P C B CL2462R Type 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 Check coil resistance of compressor motor magnetic contactor 52C 1035_X_S ...

Страница 46: ...apacitor 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 0630_X_S P C B Ass y is defective Check resistance of flap motor winding P C B Ass y or remote ...

Страница 47: ...the fan gently once or twice by hand 0633_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 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 Low even when the Outdoor Temperatu...

Страница 48: ...ransformer TR 1038_X_S If fuse blows Check PTC Check compressor motor capacitor RC1 Wait for 30 minutes until com pressor has cooled Compressor runs Compressor internal thermal protector is operated Check power supply voltage Is voltage abnormally low NO Is outdoor heat exchanger coil dirty or are there obstacles near air suction inlet Check resistance of compressor motor winding 1039_X_S OK OK ...

Страница 49: ...ube between indoor unit and outdoor unit insulated 1040_X_S Measure temperatures of suction and discharge air of indoor unit Change installation position of remote control unit Insulate wide tube and then execute taping with narrow tube YES NO Possibility of refrigerant shortage Charge refrigerant Temperature difference is small YES Check clogging of air filter Temperature difference between sucti...

Страница 50: ...door 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 b Short Outdoor fan and compressor do not stop Excessive cooling ...

Страница 51: ...nit Measure the resistance by placing a probe on the terminal plate in the same manner as explained above 2 Fig 17 4 Measurement of Insulation Re sistance for Electrical parts Disconnect the connector of the desired electric part from terminal plate P C B Ass y etc Fig 18 Similarly disconnect the lead wires from compressor capacitor etc Fig 19 Measure the resistance in the same manner as illustrat...

Страница 52: ...s 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 Outdoor unit Disconnect the wires from terminals of compressor Check the terminals of compressor 3 Outdoor fan motor thermal protector 49FO Outdoor unit Disconnect both the connector...

Страница 53: ... Indoor fan motor FMI Indoor unit Measure the coil resistance Measure the resistance between each terminal of the socket connected to the indoor fan motor 4 Outdoor fan motor FMO Outdoor unit Measure the coil resistance Measure the resistance in the same manner as explained above 2 5 Motor capacitor Both in indoor and outdoor unit Remove the lead wires from the capacitor terminals and then place a...

Страница 54: ...CB Ass y using pliers while heating the sol dered leads on the back side of the PCB Ass y with a soldering iron 30W or 60W Fig 23 3 For replacement insert a fuse of the same rating to the intended position and solder it Allow time to radiate heat during sol dering so that the fuse does not melt When replacing the fuse be sure not to break down the varistor CAUTION NOTE Fig 22 Fig 23 1043_X_S Solde...

Страница 55: ... mixed composition state in liquid phase When refrigerant R410A is used the composition will differ depending on whether it is in gaseous or liquid phase and the basic performance of the air conditioner will be degraded if it is charged while the refrigerant is in gaseous state Thus always charge the refrigerant while it is in liquid phase 11 2 Checklist Before Installation Use a clutch type flare...

Страница 56: ...oil for R410A No additional charge of compressor oil is required No use of refrigerant other than R410A Never use a refrigerant other than R410A If refrigerant R410A is exposed to fire Through welding etc toxic gas may be released when R410A refrigerant is exposed to fire Therefore be sure to provide ample ventilation during installation work Caution in case of R410A leak Check for possible leak p...

Страница 57: ...the unit when the power is off is recommended Vacuum pump 2 can be used if the following adapter is attached Vacuum pump adapter reverse flow prevention adapter 3 Solenoid valve installed adapter attached to a conventional vacuum pump Electronic scale for charging refrigerant Flare tool Bender Torque wrench Cutter reamer Welding machine nitrogen gas cylinder Tools specifically for R410A Tools whic...

Страница 58: ... 58 SM830092 ...

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