Maintenance Schedule - Daikin WCT Series Operating & Maintenance Manual

Maintenance Schedule

Maintenance Check List Item
I. Unit
· Operational Log
· Analyze Operational Log
· Refrigerant Leak Test Chiller
· Test Relief Valves or Replace
II. Compressor
· Vibration Test Compressor
A. Motor
· Meg. Windings (Note 2)
· Ampere Balance (within 10% at RLA)
· Terminal Check (Infrared temperature measurement)
· Motor Cooling Filter Drier Pressure Drop
B. Lubrication System
· Lubricant Appearance (clear color, quantity)
- Lubricant Filter Pressure Drop
· Lubricant Analysis (Note 6)
· Lubricant change if indicated by lubricant analysis
III. Controls
A. Operating Controls
· Calibrate Temperature Transducers
· Calibrate Pressure Transducers
· Check Vane Control Setting and Operation
· Verify Motor Load Limit Control
· Verify Load Balance Operation
· Check Lubricant Pump Contactor
B. Protective Controls
· Test Operation of:
Alarm Relay
Pump Interlocks
Guardistor and Surgeguard Operation
High and Low Pressure Cutouts
Lubricant Pump Pressure Differential Cutout
Lubricant Pump Time Delay
Continued on next page.
OMM WCT
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Centrifugal Chillers
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O
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O
O
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