SERVICE PARTS INFORMATION 1
Compressor
Does not start up
Diagnosis method of Compressor (If Outdoor Unit 7 segment LED displays Error, refer to Trouble shooting )
Replace Compressor
Is any Indoor unit in operation?
* If it is operated right after stopping
operation, Start-up protection
( 3min -
max.6min)
by differential pressure is
kicked on.
Stops soon after starting up
Abnormal noise
Check power supply voltage,open fuse.
Is there open or loose connection cable?
Check power supply voltage,open fuse.
Is there open or loose connection cable?
In case of inverter compressor, check Filter PCB, Inverter PCB,
connection of Compressor, and winding resistance.
(Refer to the next page).
>> If there is no failure, the defect of Compressor can be
considered. (Compression part broken or valve defective.)
In case of inverter compressor, check
Filter PCB, Inverter PCB, connection of
Compressor, and winding resistance
(Refer to the next page).
>> If there is no failure, the defect of
Compressor is considered (Locked
compressor due to clogged dirt or
less oil)
Replace Compressor
Check if refrigerant is leaking or
amount of additional refrigerant is
insufficient.
(Repair the leak and Recharge
refrigerant)
Replace Compressor
Check power supply voltage,
open fuse.
Is there open or loose
connection cable?
Defective Compressor
can be considered.
(due to inside dirt clogging
or broken component)
Are all of the 3-way valves open?
(Low pressure is too low or
High pressure is too high.)
Check if Strainers are clogged.
(Strainers before and after EEV1, 2)
4-5 SERVICE PARTS INFORMATION
If it is suspected of lack of oil,
we recommend also replacing
OIL RETURN VALVE A ASSY(P/N 9378745032)
together with Compressor.
Note
04-95
Summary of Contents for Airstage UTP-RU01AH
Page 1: ...SERVICE MANUAL 208 230V 60Hz ...
Page 5: ...1 TEST RUN ...
Page 6: ......
Page 34: ...2 OUTDOOR UNIT OPERATION CONTROL ...
Page 59: ...3 INDOOR UNIT OPERATION ...
Page 60: ......
Page 82: ......
Page 83: ...4 TROUBLE SHOOTING ...
Page 84: ......
Page 186: ...04 96 0 24 AOUA120 208 230 AOUA72 90 0 19 RED WHITE BLACK U V W ...
Page 208: ...5 APPENDING DATA UNIT ...
Page 209: ......
Page 215: ...CASSETTE TYPE MODELS AUUB18TLAV AUUB24TLAV AUUB30TLAV AUUB36TLAV 05 06 ...
Page 217: ...MEDIUM STATIC PRESSURE DUCT TYPE MODEL ARUM24TLAV 05 08 MODEL ARUM30TLAV ARUM36TLAV ...
Page 218: ...HIGH STATIC PRESSURE DUCT TYPE MODELS ARUH36TLAV ARUH48TLAV ARUH60TLAV 05 09 ...
Page 219: ...FLOOR CEILING TYPE MODELS ABUA12TLAV ABUA14TLAV ABUA18TLAV ABUA24TLAV 05 10 ...
Page 220: ...CEILING TYPE MODELS ABUA30TLAV ABUA36TLAV INDOOR UNITS INDOOR UNITS 05 11 ...
Page 221: ...WALL MOUNTED TYPE MODELS ASUA7TLAV ASUA9TLAV ASUA12TLAV ASUA14TLAV 05 12 ...
Page 222: ...MODELS ASUB18TLAV ASUB24TLAV 05 13 ...
Page 224: ...MODEL UTP RU01AH MODEL UTP RU01BH 5 2 3 RB Unit 05 15 ...
Page 225: ...MODEL UTP RU01CH 05 16 ...
Page 226: ...MODEL UTP RU04BH 05 17 ...
Page 227: ...MODELS AAUA48TLAV 5 2 4 Outdoor Air Unit 05 18 MODELS AAUA72TLAV ...
Page 228: ...MODELS AAUA96TLAV 05 19 ...
Page 230: ...6 DISASSEMBLY PROCESS ...
Page 245: ......