SM-18006
3-125
TROUBLESHOOTING
NOTE:
The symbol with an underline indicates an item to check.
(1) General
No. Check Item Result
1
Are the power supply wire and the communication wire separate from
refrigerant pipings?
2 Is ground wire connected?
3 Is there any short circuit?
4
Is there any voltage abnormality among each phase?
(L1-L2, L2-L3, L3-L1)
(2) Refrigerant System
a. Operation (Cooling/Heating)
No. Check Item Result
1 Operate all the units (“TEST RUN” mode).
2 Operate all the indoor units at “HIGH” speed.
b. Sampling Data (Cooling/Heating, Indoor Temperature 70
o
F~86
o
F (21
o
C~30
o
C))
No. Check Item Result
1 Check the operating data after 20-minute operation.
2
Check Pd and Td. Is Td-SH 27 to 81
o
F (15 to 45
o
C) ?
3
Is Ps 22 to 189 psi (0.15 to 1.3 MPa) ?
4
Is Pd 145 to 522 psi (1.0 to 3.6 MPa) ?
I.U. Model
I.U. Serial No.
CHECKLIST FOR TEST OPERATION
CLIENT: INSTALLER: DATE:
W.S. MODEL: W.S. SERIAL NO.: CHECKER:
I.U.: Indoor Unit, W.S.: Water Source Unit
Piping Length: feet Additional Refrigerant Charge: lb
To Next Page