Maintenance Schedule - Daikin WGZ030DW Operating And Maintenance Manual

Maintenance Schedule

I. Compressor
A. Performance Evaluation (Log & Analysis) *
B. Motor
• Meg. Windings
• Ampere Balance (within 10%)
• Terminal Check (tight connections, porcelain clean)
• Motor Cooling (check temperature)
C. Lubrication System
• Oil Level
• Oil Appearance (clear color, quantity)
• Oil change if indicated by oil analysis
II. Controls
A. Operating Controls
• Check Settings and Operation
B. Protective Controls
• Test Operation of:
Alarm Relay
Pump Interlocks
High and Low Pressure Cutouts
III. Condenser
B. Test Water Quality
C. Clean Condenser Tubes (or as required)
D. Eddycurrent Test - Tube Wall Thickness
E. Seasonal Protection
IV. Evaporator
B. Test Water Quality
C. Clean Evaporator Tubes (or as required)
D. Eddycurrent Test - Tube Wall thickness (or as required)
E. Seasonal Protection
V. Expansion Valves
A. Performance Evaluation (Superheat Control)
VI. Compressor - Chiller Unit
A. Performance Evaluation
B. Leak Test:
• Compressor Fittings and Terminal
• Piping Fittings
• Vessel Relief Valves
C. Vibration Isolation Test
D. General Appearance:
• Paint
• Insulation
VII. Starter(s)
A. Examine Contactors (hardware and operation)
B. Verify Overload Setting and Trip
C. Test Electrical Connections
VIII. Optional Controls
A. Hot Gas Bypass (verify operation)
OM 1130-2
Key: O = Performed by in-house personnel
O
X
X
O
O
X
X
X
X
X
X
O
X
X
X
X
X
X
X
X
X = Performed by service personnel
X
X
X
X
X
X
X
X
X
X
X
X
X
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