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2-40 HP Portable Chillers Chapter 5: Maintenance 38 of 70
Chapter 5: Maintenance
5-1 Lubrication
Grease all blower bearings, fan and blower motors, and pump motors that do not have
permanently sealed bearings. Remove the grease relief plug (motors only) before adding
grease, add grease until a small amount pours out, and replace the plug when finished.
Caution! Failure to remove the grease relief plug will result in dislodging the bearing
grease seal, eventually causing bearing failure.
Refrigeration compressors are hermetically sealed and no lubrication is required.
5-2 Filter Cleaning
Air filter cleaning is important to keep your air-cooled portable chiller operating at peak
efficiency and capacity. Clean the filters whenever they appear dirty, or at regularly
scheduled intervals.
1. Turn the chiller off.
2. Slide the filter up off of the retaining pins holding it in place along its bottom.
3. Tip the bottom of the filter away from the chiller.
4. Slide it down and out.
5. Wash down the filter with clean water (preferably with a garden hose), directing the flow
of water opposite the direction of airflow. If dirt is heavy, use a mild detergent and rinse
well. Allow the filter to dry completely before replacing it on the chiller.
Note: Keep a spare air filter set on hand. Install and use it while cleaning).
Caution! Do not use compressed air to blow off a dirty filter. It will not clean very well,
and the filter could be damaged. Never run the chiller without properly
installed filters.