Trane TRG-TRC016-EN manual Low Ambient Operation

period one

Types of Water Chillers

notes

air-cooled or water-cooled

Low Ambient Operation

air-cooled chiller

Figure 11

Air-cooled chillers are often selected for use in systems that require year-round cooling requirements that cannot be met with an airside economizer. Air-cooled condensers have the ability to operate in below-freezing weather, and can do so without the problems associated with operating the cooling tower in these conditions. Cooling towers may require special control sequences, basin heaters, or even an indoor sump for safe operation in freezing weather.

For process applications, such as computer centers that require cooling year- round, this ability alone often dictates the use of air-cooled chillers.

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