Chilled Water System Maintenance

Chilled water system maintenance showing flow switch at 0 reading

Chilled Water System Maintenance

Maintenance of the Chilled Water System Flow Switch

The chilled water system flow switch requires regular maintenance due to a to build up of contaminants on the sensor. Over time, slime accumulates giving false readings. The problem is relatively easy to sort out: a wipe with a cloth.

Retrieving the sensor

The more difficult part is retrieving the sensor. It is fixed with a bolt into the chilled water system being maintained. Therefore, there is pressure inside the water system. This pressure is handled and the glycol drained into vessels.

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Checking the Fault Out Level

As you can see from the picture: there is a green light on 0. This indicates that the pump is off, not to be confused with pressure. With the pump on: the green lights go all the way up to 9 with the fault out level showing red on 7.

Maintaining the Chilled Water System Fault Out Level

Maintaining the chilled water system flow switch can be achieved with a terminal driver. Using the manual that comes with the flow switch: the buttons can pressed a number of times to 'self test' Also, the fault out level can be set.

Testing the Flow Switch

As part of the maintenance, the flow switch is manually tested using one of two methods. This ensures that the switch will function correctly when it needs to.

Maximus Chillers offers the whole package for the maintenance of your plant. With state of the art equipment and the best engineers- we complete the picture. Weather you have a small problem like the above mentioned flow switch, or a big problem like compressor failure- Maximus Chillers can help.

Any Chiller- Any Problem- Any Part- Any Refrigerant- Anywhere- The MAXIMUS ADVANTAGE™

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Read more about flow measurement on Wikipedia


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Maximus Chillers

Maximus Chillers for centrifugal, water cooled, air cooled and ammonia chillers

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