82
OMM 1008-1
Maintenance Schedule
I. Compressor
A. Performance Evaluation (Log & Analysis) *
O
B. Motor
•
Ampere Balance (within 10%)
X
•
Terminal Check (tight connections, porcelain clean)
X
•
Motor Cooling (check temperature)
X
C. Vane Operation
•
Compressor Loads:
Operate Manual Switch
X
Record Motor Amps
X
•
Compressor Unloads:
Operate manual Switch
X
Record Motor Amps
X
•
Vanes Will Hold (place manual switch in "hold")
Observe Water Temp and Record Amps
X
D. Internal Compressor Check
X
II. Controls
A. Operating Controls
•
Check Settings and Operation
X
•
Check Vane Control Setting and Operation
X
•
Verify Motor Load Limit Control
X
•
Verify Load Balance Operation
X
B. Protective Controls
•
Test Operation of:
Alarm Relay
X
Pump Interlocks
X
III. Condenser
A. Performance Evaluation
O
B. Test Water Quality
X
C. Clean Condenser Tubes
X
D. Eddy current Test - Tube Wall Thickness
X
E. Seasonal Protection
X
IV. Evaporator
A. Performance Evaluation (Log Conditions And Analysis)
O
B. Test Water Quality
X
C. Clean Evaporator Tubes (as required)
X
D. Eddy current Test - Tube Wall thickness (as required)
X
E. Seasonal Protection
X
V. Expansion Valve
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. Electrical
A. Capacitors, Replace every 10 years from startup, include bus
bar. Consult McQuay for parts and instructions.
Key: O = Performed by in-house personnel X = Performed by McQuay Service personnel
