Liebert MC Condenser (if equipped)
1. Coil clean
2. Fans free of debris
3. Fans securely mounted
4. Motor bearings in good condition
5. Check all refrigerant lines for vibration isolation. Support as necessary
6. Check for refrigerant leaks
7. Check surge-protection device (if installed) status-indicator lights
8. Check/Re-torque wire connections
9. Check contactors for pitting (replace if pitted)
10. Verify operation sequence/set points
11. Charge verification:
a. Outdoor Ambient Temperature__________
b. Subcooling__________
c. Indoor-unit Return-air Temperature__________
d. Sight-glass level (if Lee-Temp or pumped refrigerant)_________
12. Motor amp draw
#1 L1 L2 L3
#2 L1 L2 L3
#3 L1 L2 L3
#4 L1 L2 L3
Drycooler (if equipped)
1. Coil clean free of debris
2. Motor mounts tight
3. Bearings in good condition (motor)
4. Piping support/clamps secure
5. Check/Re-torque wire connections
6. Check contactors for pitting (replace if pitted)
7. Check fuses
8. Verify fan operation
9. Check surge-protection device status-indicator lights (if equipped)
10. Stat Settings ________________________
11. Refrigerant level (Lee-Temp™)
12. Glycol level
13. Glycol solution ----__________________%
14. Water/Glycol solution flowing continuously/clean and free of debris
Vertiv | Liebert® PDX™ and PCW™ Installer/User Guide | 94
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