VII. Maintenance
Schedule: Inspection interval depends on environmental and operating conditions. At least every 6 to
12 months is recommended.
Activity: During each inspection, the cleanliness of water and electrical readings should be checked.
Condenser Coils
Purpose: Some units have air-cooled condensers. These units have fans that pull air across the
condenser coils to reject heat from the refrigeration circuit.
Maintenance: Dust and debris may collect on the condenser during normal operation. Accumulated
debris restricts air flow and reduces heat transfer which affects chiller performance. Remove a side
panel from the unit to access the inside face of the condenser. Use a brush to loosen compacted
debris and use a vacuum to collect the debris.
Suction Strainer
Purpose: Units have a nylon suction strainer in the tank to prevent debris from damaging the pump.
The suction strainer is threaded into a fitting on the inside of the tank at the bottom.
Maintenance: Check the strainer for debris or biological growth. If debris is present the strainer can
sometimes be cleaned, but if debris is significant or built up inside the strainer then it may need to be
replaced. Replacement strainers are available from Haskris.
Notes: A dirty strainer can cause cavitation which can damage the pump. Failure due to cavitation is
not covered under the warranty.
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