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<Cooling operation>
<Heating operation>
Suction pressure sensor
Outdoor unit Main PCB
"Protection stop by suction pressure 0.02MPaG continued for 5 minutes
repeats 5 times within 2 hours.
Check Point 1 : Check if 3-way valve(gas side) is open.
Suction pressure sensor characteristics check
* For the characteristics of the suction pressure sensor.
(Refer to PARTS INFORMATION 8)
Check Point 5 : Check the suction pressure sensor
Check Point 6 : Check the refrigerant amount
Leak check
If the 3-way valve(gas side) was closed, open the
3-way valve(gas side) and check operation.
02-25
Check Point 1 : Check if 3-way valve(liquid side) is open.
If the 3-way valve(liquid side) was closed, open the
3-way valve(liquid side) and check operation.
OK
OK
OK
OK
OK
OK
OK
Detective Actuators:
Detective details:
Forecast of Cause :
Trouble shooting 23
OUTDOOR UNIT Error Method:
Low Pressure Error
Indicate or Display:
Refer to error code table.
EEV operation check
Strainer not clogged?
(Refer to PARTS INFORMATION 3)
Check Point 4 : Check the EEV, strainer clogging
EEV operation check
Strainer not clogged?
Refer to PARTS INFORMATION 3
Check Point 2 : Check the EEV, strainer clogging
Check Point 2 : Check the outdoor unit ambient temperature
Outdoor ambient temperature lower than operating range?
Check Point 3 : Check the outdoor unit fan operation,
heat exchanger
For AOTG34LFT
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. Low pressure sensor characteristics defective 7. Insufficient refrigerant
8. Main PCB failure
No foreign object in air passage?
Heat exchange fins clogged
Fan rotates?
Outdoor unit fan motor check
Check Point 7 : Replace Main PCB
If Check Point 1- 6 do not improve the symptom, replace Main PCB.
Содержание AO*G24LFLAO*G24LFCC
Страница 3: ......
Страница 4: ...1 DESCRIPTION OF EACH CONTROL OPERATION R410A WALL MOUNTED type INVERTER ...
Страница 25: ...2 TROUBLE SHOOTING R410A WALL MOUNTED type INVERTER ...
Страница 63: ......
Страница 64: ...3 APPENDING DATA R410A WALL MOUNTED type INVERTER ...
Страница 75: ...1116 Suenaga Takatsu ku Kawasaki 213 8502 Japan Oct 2012 Printed in Japan ...