Here are some other considerations: Ambient (or Facility Water) Temperatureĭuring the refrigeration cycle, the condenser transfers heat from the hot refrigerant to the ambient air or facility water, depending on the type of chiller. We mentioned set temperature above, but this isn’t the only factor that can have an effect on the cooling capacity of a chiller. Factors Affecting the Cooling Power of a Chiller Manufacturer specifications for some of the 6000 Series Portable Chillers. Some manufacturers will provide multiple cooling capacities at various temperatures.

As a result, there is less efficient heat transfer, which translates to decreased cooling capacity.Īs such, manufacturer specifications for a given unit will often show the cooling capacity at a specific temperature. When the setpoint is lower, there is a smaller temperature differential between the refrigerant and chiller liquid. The cooling capacity of a chiller decreases with the set temperature. Manufacturer specifications for the H50-500 Recirculating Water Chiller. The SI units for cooling capacity are watts (W), but it may also be denoted in British Thermal Units per hour (BTU/hr) or tons of refrigeration (RT). What Is Cooling Capacity?Ĭooling capacity measures the ability of a cooling system to remove heat. We’ll also discuss how to determine what cooling capacity you need for your application, including how to convert between common units used for the metric. In this post, we explain what cooling capacity is and what factors affect it. If your cooling capacity is too low, your chiller won’t be able to reach and hold its setpoint temperature. An important specification to look at when selecting a chiller for your application is its cooling capacity.

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