Detective Actuators:
Detective details:
Forecast of Cause :
OK
OK
OK
OK
1. 3-way valve not opened 2. Outdoor unit ambient temperature too low
3. Outdoor unit fan operation defective, foreign matter at heat exchanger
4. EEV defective, strainer clogged 5. Solenoid valve defective 6. 4-way valve defective
7. Low pressure sensor characteristics defective 8. Insufficient refrigerant
Suction pressure sensor
"Protection stop by "suction pressure 15psi (0.10MPa)continued for 10 minutes"
or "suction pressure 7.25psi(0.05MPa)" during operation of any compressor"" was
generated 5 times within 3 hours
No foreign matter in air passage?
Heat exchange fins clogged
Fan rotates?
Outdoor unit fan motor check
Check Point 3 :
Check the outdoor unit fan operation, heat exchanger
Check Point 2 : Check the outdoor unit ambient temperature
Outdoor ambient temperature lower than operating range?
Outdoor unit EEV1, EEV2 operation check
Strainer not clogged?
Refer to "Service Parts Information 15,16 ".
Check Point 4 : Check the outdoor unit EEV, strainer clogging
Indoor unit EEV operation check
Strainer not clogged?
Check Point 4 :
Check the indoor unit EEV, strainer clogging
Suction pressure sensor characteristics check
* For the characteristics of the suction pressure sensor,
refer to "Service Parts Information 23".
Check Point 6 : Check the suction pressure sensor
Check Point 7 : Check the refrigerant amount
Leak check
Check Point 5 : Check the solenoid valve (SV1)
Solenoid valve operation check
Refer to "Service Parts Information 18".
Check Point 1 : Check if 3-way valve is open.
If the 3-way valve was closed, open the
3-way valve and check operation.
Check Point 1 : Check if 3-way valve is open.
If the 3-way valve was closed, open the
3-way valve and check operation.
OK
OK
OK
OK
After fixing the problem and for canceling the Error, Error Reset (F3-40) will be required after power reset
<Cooling/ Cooling main operation>
<Heating/ Heating main operation>
Check Point 4 : Check the 4-way valve (4WV1, 4WV2)
4-way valve operation check.
Refer to "Service Parts Information 19".
Indoor Unit : Operation LED 9 times Flash, Timer LED 15 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E. A 5. 1
Error Code : 9 U / A 6
Indicate or Display:
Trouble shooting 65 EA5. 1
OUTDOOR UNIT Error Method:
Low Pressure Abnormal
04-74
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: ......