Things to consider when getting an air-cooled chiller

Chillers use compression units that work along with the aluminium fins and copper pipes to reduce temperature of refrigerant gas. Based on the type of condensers, they can be categorised into two, air-cooled chillers and water-cooled chillers. While the prior feature cooling towers to process the humid air stream, the latter uses a current of ambient air. For those searching for efficient air-cooled chillers to maintain appropriate temperatures, here is some information. Have a look!

What is the criterion for choosing an air-cooled chiller?

Minimum chiller capacity:

When buying a chiller unit, consider the area to be cooled and the capacity of the device. When the area is quite large and the difference between day and night temperatures is substantial, air-cooled chillers are the best choice.

Effect of height on performance:

Another thing you must consider when investing in an air chiller is the height of the equipment. It is so because the capacity of air-cooled chillers decreases when the altitude increases.

Type of control:

It is necessary to pay attention to how you can control the air chiller before investing in the device. The devices with better control promise more efficiency and deliver better performance.

Resistance to air temperature:

Users should know that when it comes to air-cooled chillers, the remaining capacity decreases by 1% per 1-degree temperature. Since this alteration also affects the compressor and improves the drawn power of the compressor by 1%, it is vital to consider this factor.

Pressure applied to the device:

The devices need protection against high pressure, whether the air or water is cold. Thus, you should see that the amount of condenser airflow is increased. At the same time, know that low and medium pressure must be preferred.

Low evaporator pressure drop:

The ideal value of the evaporator pressure drop is 60kPA. It shouldn’t exceed this limit in the group which prefers the lowest steam pressure drop. So, before getting an air-cooled chiller, it is advised to check the pressure drop of the equipment.

The physical size of the chiller:

The availability of space is another thing to consider. If you have a small-scale business, it is better to get an air-cooled chiller than a water-cooled chiller since it is smaller. It takes up little space.

The noise produced by the machine:

While almost every industrial machine produces noise at a certain level, you should see that it is not too much. This is especially crucial for places where loud noise can be a problem. Users are recommended to select chillers whose sound pressure doesn’t exceed 75dBA in a distance of 5m in open space.

The number of compressors:

Before selecting a chiller, consider the number of compressors and refrigerant circuits. The numbers must be mentioned in the specifications.

Particular types for chillers:

If you want to install the chiller in a space where the machine will be exposed to salinity and corrosion, you must get specific types. For such spaces, chillers with copper tubes or fins must be selected.

These are a few factors one must consider before getting a chiller suitable for ensuring the smooth functioning of the industrial facility.