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TROUBLESHOOTING
1.4.3 Checking List (FSG and FS3 Series)
CLIENT:
INSTALLER:
DATE:
O.U. MODEL:
O.U. Serial No.:
Checker:
I.U. Indoor Unit, O.U.: Outdoor Unit
Piping Length: m
Additional Refrigerant Charge: kg
(1) General
No.
1
2
3
4
5
6
(2) Refrigerant Cycle
a. Operation (Cooling/Heating)
No.
1
2
3
b. Sampling Data
No.
1
2
3
4
Result
Was the dip switch, DSW3 for piping lift in O.U. set?
Is the transmitting wire contacting to power lines?
Was an earth wire connected?
Is there any short circuit?
I.U.
Model
I.U.
Serial No.
Check Item
Was the dip switch, DSW6 for piping length in O.U. set?
Check Item
Result
Is there any voltage abnormality among each phase (L1-L2, L2-L3,
L3-L1, L1-N)?
In case that the constant compressor is turned ON and OFF repeatedly,
stop one indoor unit (small capacity one).
Operate all the indoor units ("TEST RUN" mode).
Operate all the indoor units at "HIGH" speed.
Is Pd 1.2 to 2.2? (If the outdoor temperature is high, Pd becomes high.)
CHECK LIST ON TEST OPERATION
Check Pd and Td. Is Td-SH 20 to 40 deg.?
(In Case of 24 and 30HP, Td-SH is 25 to 50 deg.)
Is Ps 0.2 to 0.5?
(In Case of 24 and 30HP, Ps is 0.2 to 0.6)
Check Item
Result
After the operation for more than 20 min.
