ST
CV
SV1
SV2
SV3
SV4
SV5
SV6
ST
CP1
CP2
CP3
Close
Close
Open
Open
Open
Open
High Pressure
gas line
Low Pressure
gas Line
ST
CV
SV1
SV2
SV3
SV4
SV5
SV6
ST
CP1
CP2
CP3
Open
Close
Open
Close
Close
Close
Indoor unit Gas Pipe
Discharge Valve
Suction Valve
Equalization Valve (Pressurization)
Equalization Valve (Decompression)
Cooling / Dry mode Heating mode
SV1 ( SVD1 )
SV4 - 6 ( SVS )
SV2 ( SVB2 )
SV3 ( SVB1 )
Fan mode / Stop
Close
Open
Close
Open
Open
Close
Open
Close
Close
Close
Close
Open
Function
( Indication on Service Tool )
SV No.
Liquid Line
High Pressure
gas line
Low Pressure
gas Line
Liquid Line
ST
CV
SV1
SV2
SV3
SV4
SV5
SV6
ST
CP1
CP2
CP3
Close
Close
Open
Close
Close
Close
Indoor unit Gas Pipe
High Pressure
gas line
Low Pressure
gas Line
Liquid Line
Discharge Valve
Suction Valve
Equalization Valve (Pressurization)
Equalization Valve (Decompression)
Defrost
Oil Recovery
SV1 ( SVD1 )
SV4 - 6 ( SVS )
SV2 ( SVB2 )
SV3 ( SVB1 )
IU. Freeze
Prevention
Close
Open
Close
Open
Close
Close
Close
Open
Function
SV No.
Compressor Stop
by protection
Close
Open
Close
Open
Vacuuming
Mode
Close
Close
Close
Open
Open
Open
Open
Open
3-7-5 Refrigerant Flow
- Cooling operation -
- Heating operation -
- Preparation for mode changing -
EX) Cooling operation Heating operation
EEV Open
EEV Open
EEV Close
The preparation for mode changing takes a little time ( about 6 minutes).
By changing DIP-SW (SET4-3) to ON, the time for the mode selection
controlling will be shorter ( 3 minutes).
If the mode selection control time is short, the soud of refrigerant may
be loud during cool to heat selection control process.
Note:
3-7-4 Solenoid Valve controlling
Open / Close operation in Operation
Open / Close operation in Special operation
03-14
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: ......