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Section 5 - Maintenance and Calibration
The Chiller is designed to require a minimum of periodic maintenance.
5.1 Standard Magnetic Drive Centrifugal Pump
When used under continuous operating conditions, this pump should be oiled every six (6) months
with SAE 20 oil. The pump incorporates two oil ports for this purpose.
To access the pump:
1. Turn both power switches off and unplug the power cord.
2. Remove the top panel of the housing (held in place with two bolts at the upper left and right
corners of the rear panel).
3. Remove the housing’s side panels by lifting them out of the housing frame.
5.2 Condenser, Air Vents, and Reusable Filter
To keep the system operating at optimum cooling capacity, the condenser, the air vents, and
reusable filter should be kept free of dust and dirt. They should be checked on a scheduled basis
and cleaned as required.
The reusable filter is easily accessed from either the left or right side of the unit. Use a mild
detergent and water solution to wash off any accumulated dust and dirt and then rinse and dry
thoroughly before reinstalling.
5.3 Fluid Filter
A removable, highly efficient fluid filter is integrated into the fluid reservoir. To remove it for cleaning,
simply remove the reservoir cap and lift the filter out of the reservoir. Rinse off accumulated
particulate and reinstall.
5.4 Fluid Level
The fluid level gauge on the rear of the Chiller should be periodically checked to determine if the
fluid level needs to be topped off. Generally, fluid should be added whenever the level in the
reservoir is at or near the “Low” gauge mark.
5.5 Temperature Calibration
At times, there may be a minor temperature difference between the Chiller’s displayed temperature
and the actual temperature as determined by a certified temperature measurement device. There
may also be situations where you want the displayed temperature to match a particular value to
have standardization between different instruments. These adjustments can be performed using the
Chiller’s internal and/or external temperature calibration offset functions. See Sections 4.7.9 and
4.7.10.
5.6 Flow Rate Calibration
There may be minor differences between the Chiller’s displayed flow rate and the actual flow rate as
determined by a certified flow rate measurement device. The Chiller’s displayed flow rate reading
can be adjusted to match an external device by changing the flow rate gain coefficient setting. See
Section 4.7.11.
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