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MAINTENANCE
MODEL: RAS-
CUSTOMER'S NAME AND ADDRESS:
1. Is the rotation direction of the evaporator fan correct?
2. Is the rotation direction of the condenser fan correct?
3. Are there any abnormal sounds?
4. Has the unit been operated at least twenty (20) minutes?
5. Check Room Temperatures:
Inlet:
Outlet:
6. Check ambient Temperatures:
Inlet:
Outlet:
7. Check suction line Temperature and superheat:
Suction line Temperature:
Superheat:
8. Check Pressures:
Discharge Pressure:
Suction Pressure:
9. Check Voltage:
Rated Voltage:
Operation Voltage:R-S
Starting Voltage:
Phase Imbalance: 1 – V/V
10. Check Compressor input and running current:
Input:
Running Current:
11. Do the control devices function properly?
12. Do the protective devices function correctly?
13. Is the refrigerant charge adequate?
14. Are the drain lines draining freely?
15. Are the air filters clean?
16. Are the evaporator coil and condenser tubes clean?
17. Are all cabinet panels fixed?
18. Are all cabinet panels free from rattling?
19. Has the unit been checked for refrigerant leakage?
20. Is the unit clean inside and outside?
35
Table 5. Test Running and maintenance Record
MFG. NO.
℃,WB
DB
℃,WB
DB
℃,WB
DB
℃,WB
DB
V
=
m
kW
A
COMPRESSOR MFG. NO.:
℃
℃
℃
℃
℃,
℃,
2
kg/cm
G
2
kg/cm
G
V,S-T
V,T-R
V,
DATE:
V
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