| Description |
Comment |
Maintenance Frequency |
| Daily |
Weekly |
Monthly |
Annually |
| Chiller use and sequencing |
Turn off or sequence unnecessary chillers. |
X |
|
|
|
| Overall visual inspection |
Complete overall visual inspection to be sure all equipment is operating and that safety systems are in place. |
X |
|
|
|
| Check setpoints |
Check all setpoints for proper setting and function. |
X |
|
|
|
| Evaporator and condenser coil fouling |
Assess evaporator and condenser coil fouling as required. |
|
X |
|
|
| Compressor motor temperature |
Check temperature per manufacturer's specifications. |
|
X |
|
|
| Perform water quality test |
Check water quality for proper chemical balance. |
|
X |
|
|
| Leak testing |
Conduct leak testing on all compressor fittings, oil pump joints and fittings, and relief valves. |
|
X |
|
|
| Check all insulation |
Check insulation for condition and appropriateness. |
|
X |
|
|
| Control operation |
Verify proper control function including:
- Hot gas bypass
- Liquid injection
|
|
X |
|
|
| Check vane control settings |
Check settings per manufacturer's specification. |
|
|
X |
|
| Verify motor load limit control |
Check settings per manufacturer's specification. |
|
|
X |
|
| Verify load balance operation |
Check settings per manufacturer's specification. |
|
|
X |
|
| Check chilled water reset settings and function |
Check settings per manufacturer's specification. |
|
|
X |
|
| Check chiller lockout setpoint |
Check settings per manufacturer's specification. |
|
|
X |
|
| Clean condenser tubes |
Clean tubes at least annually as part of shutdown procedures. |
|
|
|
X |
| Eddy current test condenser tube |
As required, conduct eddy current test to assess tube wall thickness. |
|
|
|
X |
| Clean evaporator tubes |
Clean tubes at least annually as part of shutdown procedures. |
|
|
|
X |
| Eddy current test evaporator tubes |
As required, conduct eddy current test to assess tube wall thickness. |
|
|
|
X |
| Compressor motor and assembly |
Check all alignments to specification. Check all seals and provide lubrication where necessary. |
|
|
|
X |
| Compressor oil system |
Conduct analysis on oil and filter. |
|
|
|
X |
| Change as required. |
|
|
|
X |
| Check oil pump and seals. |
|
|
|
X |
| Check oil heater and thermostat. |
|
|
|
X |
| Check all strainers, valves, etc. |
|
|
|
X |
| Electrical connections |
Check all electrical connections and terminals for contact and tightness. |
|
|
|
X |
| Water flows |
Assess proper water flow in evaporator and condenser. |
|
|
|
X |
| Check refrigerant level and condition |
Add refrigerant as required. Record amounts and address leakage issues. |
|
|
|
X |