M
aInTenanCe
IOM 1210-7 • MAGNITUDE
®
MODEL WMC CHILLERS
64 www.DaikinApplied.com
Maintenance Schedule
performed.
Table 30: Recommended Maintenance Schedule
Monthly
Quarterly
Semi- Annually
Annually
As Required
By
Performance
During Seasonal Shutdown
During Seasonal Startup
I. Compressor
A. Analyze Compressor Fault Log
X
B. Check IGV operation
X
C. Check and tighten compressor electrical connections
X
D. Perform moisture-prevention measures per compressor service
manual
X
II . MicroTech
®
II Controls
A. Check for proper settings
X
B. Verify transducers and sensors for accuracy
X
C. Retrieve and archive HMI Trend Logs
O
D. Perform MicroTech
®
II check, log, and last fault analysis
X
III . Condenser
A. Confirm correct water flow and pressure drop
O
X
B. Confirm appropriate water treatment
O
C. Clean and Leak Test condenser tubes
X
X
X
D. Eddy Current Test - tube wall thickness
X
E. Seasonal Protection
X
F. Clean Flow Sensor
X
X
IV. Evaporator
A. Confirm correct water flow and pressure drop
O
X
B. Confirm appropriate water treatment
O
C. Clean and Leak Test evaporator tubes
X
D. Eddy Current Test - tube wall thickness
X
E. Seasonal Protection
X
F. Clean Flow Sensor
X
V. Chiller Unit
A. Run Test / Performance Evaluation
X
B. Leak Test entire unit
X
X
X
C. General Appearance:
1. Paint / Corrosion
X
2. Insulation
X
VII. Electrical
A. Check and record line voltage
X
B. Inspect power components for signs of overheating
X
C. Check and tighten unit electrical components
X
X
Key:
O = Performed by owner personnel X = Performed by qualified service personnel