Werbung
Verfügbare Sprachen
Verfügbare Sprachen
Maintenance Check List Item
I. Unit
· Operational Log
· Analyze Operational Log
· Refrigerant Leak Test Chiller
· Test Relief Valves or Replace
II. Compressor
· Vibration Test Compressor
A. Motor
· Meg. Windings
· Ampere Balance (within 10% at RLA)
· Terminal Check (Infrared temperature measurement)
· Motor Cooling Filter Drier Pressure Drop
- Motor Winding resistance ( milli-ohm)
- Bearing Coil Winding resistance ( milli-ohm)
III. Controls
A. Operating Controls
· Calibrate Temperature Sensors/Transducers
· Calibrate Pressure Transducers
· Check Vane Control Setting and Operation
· Verify Motor Load Limit Control
· Verify Load Balance Operation
B. Protective Controls
· Test Operation of:
Alarm Relay
Pump Interlocks
High and Low Pressure Cutouts
IV. Condenser
A. Evaluation of Temp Approach (Note 1)
B. Test Water Quality
C. Clean Condenser Tubes (Note 3)
D. Eddy current Test - Tube Wall Thickness
E. Seasonal Protection
V. Evaporator
A. Evaluation of Temp Approach (Note 1)
B. Test Water Quality
C. Clean Evaporator Tubes (Note 3)
D. Eddy current Test - Tube Wall thickness
E. Seasonal Protection
VI. Expansion Valves
A.Operational Evaluation (Superheat Control)
VII. Starter(s)
A. Examine Contactors (hardware and operation)
B. Verify Overload Setting and Trip
C. Test Electrical Connections (Infrared temp measurement)
KEY:
O = Performed by in-house personnel.
X = Performed by McQuay authorized service personnel. (Note 4)
V = Normally performed by third parties.
Table 2 - Routine maintenance programme
O
O
O
O
O
D - EIMWC01104-12EU - 13/148
X
X
X
O
X
X
X
X
X
X
X
X
X
X
X
X
V
X
X
V
X
V
X
V
X
X
X
X
X
X
Werbung
