Preventive Maintenance
Polycold Cryochiller
Preventive Maintenance Schedules
Installation and Operation Manual
Brooks Automation
9-2
214072 Revision B
Preventive Maintenance Schedules
Interval
Action
Daily
Ensure the unit is functioning as expected
Weekly
Ensure the unit is functioning as expected
Check Temperatures (during process)
Check Pressures (during process)
Monthly
Perform Weekly Maintenance
Check Time to Cool Down
Check for air flow from E-box fans
Quarterly
Perform Monthly Maintenance
Check system balance pressure
Verify LCD display is not missing characters
Verify HMI keypad / Remote Control functions properly
Verify Insulation is intact
Verify Oil Level in Compressor is appropriate
Power cycle the system. leaving it off for minimum of 10 seconds.
Replace Fan Filter (as appropriate)
Annual
Perform Quarterly Maintenance
Replace fan filter (mandatory) and check fan operation
Replace valve and valve components as necessary
Review event files for errors and backup system data (future capability)
Check Cool Down Cycle Time, Pressure, and Temperature
Check Defrost Cycle Time, Pressure, and Temperature
Verify Water Flow and Temperatures
Confirm that customer-provided water filters are replaced as required
Inspect Frame, Compressor, and Components for wear
Reinsulate (as appropriate)
Perform Compressor Pump Down Test
Perform Leak Check on fittings within the Cryochiller and feedthroughs
Clean electronic control box and replace mother board battery as required
(nominally every 3-5 years)
Inspect all harness connections
Top off charge as required
Evacuate and recharge as necessary
