MaInTenanCe
IOM 1210-7 • MAGNITUDE
®
MODEL WMC CHILLERS 64 www.DaikinApplied.com
Maintenance Schedule
Table 30 provides an overview of recommended maintenance procedures along with how frequently these procedures should be
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. Conrm correct water ow and pressure drop O X
B. Conrm 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. Conrm correct water ow and pressure drop O X
B. Conrm 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 qualied service personnel
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