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Chiller Maintenance

Chiller Maintenance


Chiller Maintenance

1.1 Main parts maintenance and precautions

1.In the process of operation should pay attention to exhaust and inhale pressure of the system. Pls find out the reasons and trouble shooting if any anomaly immediately.

2.Don’t arbitrarily adjust the control and protective element set points.

3.Regularly check whether the electrical wiring and fasten it if any loosen.

4.Regularly check the reliability of electrical components and replace any one of failure or unreliable components

2 Descaling

After long-term operation, the heat transfer surface of the shell and tube exchanger will be deposited by calcium oxide or other minerals. These minerals will affect the heat transfer performance,lead to increased power consumption, exhaust pressure rise.Acid, citric acid, acetic acid and other organic acids can be used for cleaning.

3 Winter shutdown

When the winter shutdown,clean both inside and outside surface, and dry it.The drain must be open and drain all the water inside the shell and tube heat exchanger, to prevent freezing.

4 Start the machine

To start the unit after long time shutdown,please follow the steps below:

1.Thoroughly check and clean up the unit.

2.Clean water pipe system.

3. Check the water pump.

4.Tighten all line connectors.

5 Clean the cooling tower regularly( For Water Cooled Chiller)

For keeping the unit running well, please clean the condenser and the evaporator regularly.For keeping the cooling tower with good heat dissipation efficiency, please clean it regularly;

6 Maintenance cycle

Check the water flow


Check the power supply


Check the electrical terminals and electrical insulation


Check the appearance and the running of the internal electric&external solenoid valve.


Check and adjust the setting temperature.


Check the dry filter


Check pipes of chiller


Check vibration and noise of compressor


Open and Check electrical box


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