How to Ensure That Your Chiller Operates Efficiently

Chillers are often the single biggest power consumer among all of the equipment inside a building. They cannot be removed from the equation but they can be made to operate efficiently for energy savings. The key is having a solid HVAC preventive maintenance plan, which can be carried out by a trusted heating and cooling service, such as William G Day Company.


Be sure to include the following for best results:

Daily Data Gathering

In order to detect abnormalities, you must have a baseline for comparison. That’s why it is important to do daily data gathering of all the pertinent details of chiller operation. Manufacturers will be able to provide a listof the vital set points for monitoring. These have to be meticulously logged and regularly studied. Deviations from the norm could point to a possible malfunction that needs immediate inspection. Problems can be remedied before they get worse.

Tube Cleaning

The tubes are the primary means of heat exchange between the inside and the outside of the chillers. Over time, dust, dirt, fungi, and other undesirable elements settle on the surfaces reducing their conductivity. These must be cleaned as often as required to ensure that thermal efficiency never falls below an acceptable level. Cleaning may be accomplished by brushing the surfaces and flushing out the loose dirt with water. Chemical agents may also be employed to eliminate biological hazards.

Leak Testing

It is nearly impossible to create a truly leak-proof unit. The condenser is known for being prone to this type of damage because of the way that it operates. Leaks can be dangerous for the environment as the refrigerants are known to adversely affect the ozone layer. Testing should be done on a quarterly basis to hunt for these leaks and seal them right away.

Chemical Analysis

Another method of catching problems before they worsen is chemical analysis. In particular, the refrigerant and oil may be analyzed to check for telltale signs of contamination. Contaminants could be anything such as metals, acids and moisture. Their presence makes the chiller operate less efficiently. It may be time to change the filters or replace the oil to make a fresh start.

The technicians will take samples, conduct the analysis, and present recommendations.