Cost savings of 50% or more can be achieved by ensuring that your refrigeration plant is well maintained. Improved reliability also reduces the chance of systems breaking down.
Changes and repairs to a refrigeration plant require the assistance of a suitably qualified refrigeration maintenance contractor. By identifying possible problems early, appropriate help can be requested quickly.
- Have a maintenance schedule. This will ensure the system is checked frequently. Also ensure you have the correct type of maintenance contract.
- Keep condensers clean and free from blockages so that there’s enough space for good airflow away from the unit. Check external condensers have not been clogged up with debris. Also check ventilation, because a compressor in a poorly ventilated plant room will run hotter than necessary.
- De-ice evaporators. Ice will build up over time, but excessive ice might indicate that a drain is blocked or that the unit is too close to the thermostat. Get your maintenance contractor to investigate.
- Check noisy compressors. This could mean that the bearings are becoming worn, so consult your maintenance contractor.
- Check the oil level. Compressor reliability may be reduced if the oil level is too low or too high. Check the oil level regularly and if a change is noticed, have a qualified service technician investigate.
- Monitor pipework. Vibrating pipework is more likely to fracture, resulting in a major refrigerant leak. Consult your refrigeration maintenance contractor to ensure that pipes are properly secured. Insulation on pipework should also be in good condition to prevent unnecessary heat gains.
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