Emerson Liebert Challenger iCOM 3000 Operation & Maintenance Manual page 45

CHILLED WATER / ECON-O-COIL (If Equipped)
___ 1. Verify proper water maintenance is being performed
___ 2. Check for water/glycol leaks
___ 3. Stroke freecooling valve open and closed
AIR-COOLED FIN AND TUBE CONDENSER / DRYCOOLER (if Equipped)
___ 1. Coil free of debris (clean is required)
___ 2. Motor mounts tight
___ 3. Bearings in good condition (motor)
___ 4. Piping support/clamps secure
___ 5. Check/retorque wire connections
___ 6. Check contactors for pitting (replace if pitted)
___ 7. Check fuses
___ 8. Verify fan speed control operation (if equipped)
___ 9. Check surge protection device status indicator lights (if equipped)
___ 10. Stat settings (if equipped)
___ 11. Refrigerant level
(Liebert Lee-Temp
___ 12. Glycol level
___ 13. Glycol solution ________%
___ 14. Water/glycol solution flowing continuously/clean and free of debris
___ 15. Water treatment plan established and followed for open cooling tower application
___ 16. Check refrigerant/glycol lines for signs of leaks
___ 17. Motor amp draw
#1 L1
(L1 and L2 on Fan Speed Control Motor)
#2 L1
#3 L1
#4 L1
#5 L1
#6 L1
#7 L1
#8 L1
#9 L1
#10 L1
)
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L2
L2
L2
L2
L2
L2
L2
L2
L2
L2
41
Ambient temperature
L3
L3
L3
L3
L3
L3
L3
L3
L3
L3
Maintenance Worksheet
°F (°C)
™
Liebert ® Challenger 3000