Chillers are essential for most commercial and industrial operations as part of the HVAC and plant machinery cooling systems. Unfortunately, the cost implications of owning these assets can be quite overwhelming and will affect the total profits of your businesses. In simple terms, the purchase price of a chiller is high and the electrical demands are quite significant, particularly when compared to other equipment and appliances. In addition, if the chiller breaks down, expensive repairs will be required to restore functionality. Therefore, if you want to minimise the costs of running your chiller, you should ensure that the machine is functioning optimally. Here are crucial maintenance and care guidelines to help you promote better performance.

Choose a Variable Speed Drive

The motor in the chiller machine consumes high amounts of electricity for normal operations. If you would like to lower this demand and even enhance the chiller's performance, you should consider installing a variable speed drive. This is a component that can control the torque and motor speed in electromechanical systems. Basically, the new drive will match operating speed of the motor to the immediate requirements, reducing energy wastage. This type of drive also acts like a soft starter for the equipment. It will lower the inrush current in the motor and limit the shock of starting high power chillers. This will extend the life and reliability of the machine.

Clean the Chiller Tubes

The chiller tubes are critical components in the heat transfer process in the equipment. If they cannot exchange heat effectively, then the energy efficiency of the machine will be compromised. One of the main problems associated with poor performance of the tubes is dirt. The tubes often accumulate contaminants such as algae, mud, mineral scale and general impurities, usually from the water utilised in the chiller. These pollutants form an insulating coat over the tubing, creating thermal resistance. Consequently, the overall performance of our chiller will reduce extensively. You can promote better functionality by cleaning the tubes as recommended by the manufacturer or your HVAC expert. You should also consider treating the water used in the chillers to reduce potential contaminants.

Reduce Water Temperature

You should consider lowering the general temperature of the water entering and being used in the chiller's condenser. This will improve the performance of the machine and reduce the cumulative electrical demands. On the other hand, this should not be used to compensate for other problems such as dirty coils in the air handler because the net cooling effect will remain the same.

If you do need chiller repair, don't delay contacting a professional as your system could become further compromised.

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