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4. Turn the unit on for approximately 30 seconds to ensure the propylene glycol has had a
chance to contact all of the wetted internal components.
5. Turn off the chiller and remove power from the unit.
6. Open the system drain connection (if applicable). Drain as much fluid as possible.
7. Disconnect the process connections and allow any additional fluid to leave the unit.
8. Close the system drain and screw a cap on the process fluid connections. The unit is
now ready for transport in cold climates.
Section 8 – Maintenance
Once your portable chiller has been placed into service, the following maintenance
procedures should be adhered to as closely as possible. The importance of a properly
established preventive maintenance program cannot be overemphasized. Taking the time to
follow these simple procedures will result in substantially reduced downtime, reduced repair
costs, and an extended useful lifetime for the chiller. Any monetary costs of implementing
these procedures will almost always more than pay for it. To make this as simple as
possible, a checklist should be prepared which lists the recommended service operations and
the times at which they are to be performed. At the end of this section we have included a
checklist that can be used for this purpose. Notice that there are locations for voltage
readings, amperages, etc. so that they can be monitored over time. With this information,
maintenance personnel may be able to correct a potential problem before it causes any
downtime. For best results, these readings should be taken with a full heat load from
process, preferably with similar operating conditions each time. The following is a list of
suggested periodic maintenance:
Preventative Maintenance Table
Model #: _______________________ Serial #: ___________________________
Maintenance
Activity
Week Number
1 2 3 4 5 6 7 8 9 10 11 12 13
Date
Check Fluid Level
Check for Leaks
Clean Condenser
Check Particle Filter
Check DI Filter
(optional)
Check Fan Blades
Check Fluid Bypass
Change Process Fluid
Check Amp Draw
Change Particle Filter
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