ASEAN BINTULU FERTILIZER SDN BHD Maintenance Department
ELECTRICAL Section
Maintenance Plan No.: Maintenance/Work Order No.:
Equipment Tag No.: Equipment Serial No.:
CHECKLIST FOR HVAC 4M OSSD PPM
Equipment Details
Location:

Model No./Make:

Type: 		Btu/Hr:

Room air temperature (°C):
Section A: Onstream Check
No. Task Description / Maintenance Activity Findings / Result (Mark [✓] for findings when completed) Details of defect
1. Check running noise
Indoor Outdoor
2. Check vibration level
Indoor Outdoor
3. Check conditions of accessories
Indoor Outdoor
4. Check for any sign of high temperature/overheating
Indoor Outdoor
5. Check safety switch
If applicable
Indoor Outdoor
6. Check damper operation/diffuser
Indoor Outdoor
7. Check for any corrosion
Indoor Outdoor
8. Check sight glass/moisture
If applicable
Indoor Outdoor
9. Refrigerant line insulation
10. Check filter dryer.
Replace if necessary
11. Measurements Before Shutdown Check After Shutdown Check
11.1 Compressor suction pressure (psig)
11.2 Compressor discharge pressure (psig)
11.3 Compressor running current (A)
11.4 Condenser fan No.1 motor current (A)
11.5 Condenser fan No.2 motor current (A)
11.6 Blower running current (A)
11.7 Room air temperature (degC)
Section B: Shutdown Check
1. Air filter cleaned
2. Evaporator coils cleaned.
Fin coils combed straight.
3. Condenser coils cleaned.
Fin coils combed straight.
4. Motor and blowers cleaned
5. Drain pan/pipe cleaned
6. Gas leak checked after complete shutdown check item 1-5.
Leak (if any) rectify.
7. All control circuit functional checked.
Defect (if any) rectified.
8. Mounting bolts checked and tightened
9. Unit overall operation (after maintenance)
10. Insulation resistance (compressor)
Single Phase Three Phase
C: T1-T2:
S: T2-T3:
R: T1-T3:
11. Winding resistance (compressor)
Single Phase Three Phase
C: T1-T2:
S: T2-T3:
R: T1-T3:
12. Insulation resistance (blower)
Single Phase Three Phase
13. Winding resistance (blower)
Single Phase Three Phase
Section C: Verification
Performed by
(HVAC technician)		 Reviewed by
(Do maintenance)		 Reviewed by
(Maintenance Technical Support)
Certification:
Signature: Signature: Signature:
Name: Name: Name:
Date: Date: Date: