Routine Maintenance and Troubleshooting
The Chiller is designed to require a minimum of periodic maintenance.
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 two screws securing the left side panel (as viewed from the front) of the housing to the
frame.
NOTE: If your Chiller is equipped with a turbine pump, no pump maintenance is required.
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.
To access the air filter, open the filter compartment door by placing your index finders in the cutouts on the
sides of the compartment door (upper corners) and pulling towards you.
Remove the filter and remove accumulated dust and dirt. It may be cleaned by either vacuuming, blowing out
with a clean air source, and/or washing with a mild detergent and water solution. If using a detergent/water
solution, be sure to rinse and dry thoroughly before reinstalling.
Washable
air filter
Filter compartment
door access cutouts
(both sides of
compartment door)
Reusable air filter: Part number 750-758
Fluid Level
The fluid level gauge on the front panel 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 below the
“Full” mark.
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 temperature
calibration offset functions. See
Normal Operation, Temperature Calibration (C #.#)
, page 11.
13
110-445
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