Daikin WGZ030DW - Maintenance Schedule

IM 1131-2 57
Maintenance Schedule
Maintenance Schedule
Table 40: Periodic 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
OX
• 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 alarms X
III. Condenser
B. Test water quality X
C. Clean condenser tubes (or as required) X
D. Eddycurrent test - X
E. Seasonal protection X
IV. Evaporator
B. Test water quality X
C. Clean evaporator tubes or plates (or as required) X
D. Eddycurrent test - (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