Check Point 1 : Check connections
Check connection of connector.
(Loose connector or open cable)
Check Point 3 : Check Voltage from Main PCB
Remove connector and check the voltage (AC208- 230V).
>> If the voltage does not appear, replace Main PCB.
Check Point 2 : Check Solenoid Coil
Remove connector and check if coil is open.
>> If Resistance value is abnormal, replace Solenoid Coil.
SERVICE PARTS INFORMATION 18
Outdoor Unit Solenoid Valve
(SV1, SV2, SV3, SV4)
Pipe (In)
Pipe (Out)
Pipe (In)
Pipe (Out)
AC
AC
SOLENOIDE COIL
SOLENOIDE COIL
Normal Operation
Pipe (In) TEMP. Normal,
Pipe (Out) TEMP.Normal
Protection Function (Refer to 2-6-1),
Special Operation (Defrost, Oil recovery, Start-up)
Pipe (In) TEMP. Hi,
Pipe (Out) TEMP. Hi
Normal TEMP.
Normal TEMP.
Hi TEMP.
Hi TEMP.
OPEN
CLOSE
Check Point 4-1 : Check opening & closing operation of SV1, SV2
Depending on either during operation or protection control, check if Valve is operating normally.
(When Valve opens, Inlet and Outlet temperature is raised.)
(1)
(2)
If the valve closes by removing the connector of the valve
which does not close, it is considered to be Main PCB
failure. Replace Main PCB.
If it does not close by removing connector, there is a
possibility of (1) clogging by dirt, or (2) deformation by
the heat at the time of Solenoid Valve installation.
In this case, replace Solenoid Valve.
AC
13
12
13
12
13
12
13
12
Solenoid Coil Resistance value
SV1 1324 +7%
SV2, SV3 1495 +7%
SV4 1434.5 +10%
-
-
-
04-111
Resistance value 68 F(20°C)
°
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: ......