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4-8 Drain Pump and Float Switch

Compressor

Drain Pump

OFF

Float Switch

NOTE:

Either in Heating or another mode or the unit is stopped, when the float switch is turned ON,
the drain pump operates for 20 minutes minimum

OFF

OFF

OFF

OFF

OFF

OFF

ON

ON

ON

ON

ON

ON

ON

ON

ON

■ 

Defrosting Mode Timing Chart

*1: Refer to "

4

-6 Cold Draft Prevention".

NOTE

ON

ON

ON

ON

ON

ON

ON

ON

Set speed

OFF

OFF

OFF

OFF

32 seconds

Max. 11 minutes

32 seconds

Start of defrosting

Release of defrosting

OFF

OFF

Release of 

cold draft prevention

Compressor

Outdoor fan

Solenoid coil

(4 – way valve)

Indoor fan

Standby lamp

Indoor heat 
exch. coil 
temp.

ON

ON

Set speed

*  1

2 seconds

2 seconds

35

°

C

20' min.

20' min.

3' min.

15

Содержание 387106941

Страница 1: ...TECHNICAL DATA SERVICE MANUAL INDOOR UNIT CAV182R5TA SPLIT SYSTEM AIR CONDITIONER 0 8180 253 0 07 2002 Model No Product Code No CAV182R5TA 387106941...

Страница 2: ...w wiring to touch the refrigerant tubing compressor or any moving parts of the fan Do not use multi core cable when wiring the power supply and control lines Use separate cables for each type of line...

Страница 3: ...ld Draft Prevention Heating 13 4 7 Defrosting Operation Heating 14 4 8 Drain Pump and float switch 15 5 TROUBLESHOOTING 16 5 1 Check before and after troubleshooting 16 5 2 Air conditioner does not op...

Страница 4: ...ght mm Width mm Depth mm Ceiling panel Height mm Width mm Depth mm Package dimensions Unit Height mm Width mm Depth mm Volume m3 Ceiling panel Height mm Width mm Depth mm Volume m3 Weight Unit Net kg...

Страница 5: ...ty devices Type Operating temp Open C Close C Run capacitor F VAC Flap Motor Type Model Rating No of poles rpm Nominal output W Coil resistance Ambient temp 20 C k Heat Exch Coil Coil Rows Fin pitch m...

Страница 6: ...Resistance Thermistor Room sensor TH2 Resistance Drain pump Model Rating Voltage Input Total head capacity Safety float switch Model Contact rating DTN TKS134B 25 C 5 0 3 PBC 41E S14 Primary WHT WHT...

Страница 7: ...2 DIMENSIONAL DATA Units mm 7...

Страница 8: ...3 ELECTRICAL DATA 3 1 Electric Wiring Diagrams 8...

Страница 9: ...rant pressure the control circuit has a built in automatic time delay to allow the internal pressure to equalize As a protective measure the control circuit switches the compressor OFF not before than...

Страница 10: ...s a protective measure the control circuit switches the compressor OFF not before than 5 minutes of compressor operation Thermo ON When the room temperature is below T 1 C T C is set temperature Compr...

Страница 11: ...es the difference between the set temperature and the room temperature and automatically switches to COOLING or HEATING mode to maintain the desired temperature Room temp Set temp COOL Room temp Set t...

Страница 12: ...s overheating of the indoor heat exchange coil When the temperature of the indoor heat exchange coil rises above 59 C and if the indoor fan is L low speed then the fan speed changes from L low speed t...

Страница 13: ...exchange coil have sufficiently warmed up STANDBY lamp of the indoor unit lights up when this function is working When 10 minutes has elapsed the fan speed is automatically switched to set speed rega...

Страница 14: ...tegrated operating time of compressor is more than 1 5 hours Thermo OFF Compressor OFF C D Temperature of indoor heat exchanger coil is below 45 C Continuous operating time of compressor is more than...

Страница 15: ...FF ON ON ON ON ON ON ON ON ON Defrosting Mode Timing Chart 1 Refer to 4 6 Cold Draft Prevention NOTE ON ON ON ON ON ON ON ON Set speed OFF OFF OFF OFF 32 seconds Max 11 minutes 32 seconds Start of def...

Страница 16: ...is not damaged Check that lead wires and connectors are firmly connected Check that wiring is correct 5 2 Air conditioner does not operate 5 2 1 Circuit breaker trips or fuse blows A When the circuit...

Страница 17: ...B Ass y is defective NO Check power supply Power is being supplied to the indoor unit Circuit breaker is tripped Power failure Reset breaker Wait for recovery or contact power company Replace with sui...

Страница 18: ...ary and secondary winding of transformer TR Indoor PCB Ass y is defective OK OK Measure resistance of indoor and outdoor fan motor winding FM Measure resistance of compressor motor winding CM OK Repla...

Страница 19: ...tage appears Outdoor PCB Ass y is defective OK OK NO Is room temperature too low Try to lower setting temperature by temperature setting button button Outdoor unit still does not run Remote control un...

Страница 20: ...matter in bearings Remove foreign matter or repair Repair or replace Measure resistance of outdoor fan motor winding Check fan motor capacitor Measure resistance of flap motor winding Fan cannot be t...

Страница 21: ...otor winding is abnormally high Refrigerant gas shortage Charge refrigerant gas Measure power supply voltage Rotor may be locked up The voltage is too low 5 3 5 Compressor and outdoor fan do not run F...

Страница 22: ...t Receiver in lamp ass y may be defective may be defective Measure resistance of 4 way valve s winding 20S COOL to HEAT Check voltage between terminals Outdoor PCB ass y is defective N 4 N 6 at termin...

Страница 23: ...bility of gas shortage YES Check position of remote control unit Cool or warm air from air conditioner reaches position directly Change position of remote control unit Wide and narrow tubes between in...

Страница 24: ...will blink when either indoor coil thermistor or room air thermistor is defective At the same time the outdoor unit will stop Indoor unit will operate only for ventilation NOTE Operation lamp on fron...

Страница 25: ...sure the resistance by placing a probe on each terminal screw on the terminal plate Fig 2 Note that the ground line terminal should be skipped for the check 6 1 4 Measurement of Insulation Resistance...

Страница 26: ...n place a probe on the capacitor terminals as shown in Fig 7 Observe the deflection of the pointer setting the resistance measuring range of the multimeter to the maximum value The capacitor is good i...

Страница 27: ...s on the PCB of each indoor unit with the switch positions of its remote control unit To change address on PCB 1 Set the switch n 2 to off position on the address dip switch S01 see detail on figure T...

Страница 28: ...R D 28 Reyrieux BP 131 01601 Tr voux CEDEX France T l 04 74 00 92 92 Fax 04 74 00 42 00 R C S Bourg en Bresse B 759 200 728...

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