How to Perform Chiller Maintenance? Step-by-Step Periodic Maintenance Guide
Most breakdowns in chiller systems stem from neglected periodic maintenance. A proper maintenance plan significantly reduces energy consumption and downtime.
This article was automatically translated from the Turkish original.
Why is periodic maintenance critical?
The efficiency of a chiller package is directly related to the cleanliness of the condenser surface, the refrigerant charge, and the condition of the compressor oil. A dirty condenser raises the condensing temperature, forcing the compressor to operate at a higher pressure ratio and causing an additional energy consumption of 10% to 25%.
Monthly checks
- Logging pressure and temperature values (suction/discharge pressure, water inlet/outlet temperatures)
- Monitoring condenser and evaporator approach temperatures
- Flow rate and pressure drop checks in the water circuit, strainer/filter cleaning
- Leak testing and moisture check in the sight glass
Annual maintenance items
- Condenser fin cleaning and chemical washing if required
- Compressor oil analysis and oil replacement
- Electrical panel terminal tightening checks, contactor and thermal overload settings
- Safety pressure switches and flow switch testing
- Scale/corrosion analysis in the water loop
Efficiency management is impossible without maintenance logs
Trending the values measured during each maintenance service is the most practical way to catch failures before they occur. A gradual drop in COP value is often an early indicator of a mechanical fault.
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Contact our team for chiller selection, a maintenance plan or breakdown response.