A Few Facts about HVAC Chillers
HVAC chillers are used in commercial and industrial refrigeration systems for a variety of applications, such as pumping water to coils in plants and commercial buildings, cooling medical devices, and processing plastics. Since chillers and the coils we sell go together, here are a few facts about chillers:
HVAC chillers are typically made up of a compressor, condenser, evaporator, metering device, and other components.
There are two primary types of condenser cooling methods: air-cooled and water-cooled.Air-cooled condensing methods use a fan to force cool air over the condenser coils. Air-cooled condensers require ambient temperatures of 95°F (35°C) or below to operate effectively, which means air-cooled condensers are a poor choice for high heat environments.Water-cooled condensing methods fill the condenser coils with circulating water, and two steps are involved. First, heat moves from refrigerant vapor into the condenser water, then the warmed water is pumped to a cooling tower where the process heat is released into the atmosphere. In hot environments, water-cooled condensers use less energy than air-cooled because the temperature of the water is much lower than the air temperature.Another common type of condenser cooling method is the remote air-cooled condenser chiller system. The condenser is positioned remotely, often outdoors, with the main part of the chiller near the application. This type of system works well in areas where there is inadequate air for efficient operation of the condenser near the application, such as a facility with low ceilings or tight spaces.
HVAC chillers operate with a closed-loop system, so the recycled coolant remains in the chiller. There are number of different types of refrigerants in use today. The chiller has a separate tank that filters and cleans the coolant before returning it to the main storage area for reuse.
Some commercial chillers contain large cooling towers attached to the compressor to provide additional cooling power. The cooling towers accelerate the evaporation of the heat from the refrigerant, which improves the chiller's effectiveness.
HVAC chillers can come with a local or a remote-control panel that transmits the chiller's pressure and temperature. Some models also include microprocessor controls and emergency alarms.
To find the right coils to go with your HVAC chiller, contact us at 1-855-Coil-Now or sales@emergentcoils.com today.