Daikin McQuay WGZ030DW - Maintenance Schedule

80 OM WGZC-1
Maintenance Schedule
I. Compressor
A. Performance Evaluation (Log & Analysis) * O
B. Motor
 Meg. Windings
X
 Ampere Balance (within 10%)
X
 Terminal Check (tight connections, porcelain clean)
X
 Motor Cooling (check temperature)
X
C. Lubrication System
 Oil Level
O X
 Oil Appearance (clear color, quantity)
O
 Oil change if indicated by oil analysis
X
II. Controls
A. Operating Controls
 Check Settings and Operation
X
B. Protective Controls
 Test Operation of:
Alarm Relay X
Pump Interlocks X
High and Low Pressure Cutouts X
III. Condenser
B. Test Water Quality X
C. Clean Condenser Tubes (or as required) X
D. Eddycurrent Test - Tube Wall Thickness X
E. Seasonal Protection X
IV. Evaporator
B. Test Water Quality X
C. Clean Evaporator Tubes (or as required) X
D. Eddycurrent Test - Tube Wall thickness (or as required) X
E. Seasonal Protection X
V. Expansion Valves
A. Performance Evaluation (Superheat Control) X
VI. Compressor - Chiller Unit
A. Performance Evaluation O
B. Leak Test:
 Compressor Fittings and Terminal
X
 Piping Fittings
X
 Vessel Relief Valves
X
C. Vibration Isolation Test X
D. General Appearance:
 Paint
X
 Insulation
X
VII. Starter(s)
A. Examine Contactors (hardware and operation) X
B. Verify Overload Setting and Trip X
C. Test Electrical Connections X
VIII. Optional Controls
A. Hot Gas Bypass (verify operation) X
Key: O = Performed by in-house personnel X = Performed by service personnel