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Air Cooled Chillers for Sale (62)

United Rentals carries an extensive selection of used air-cooled chillers for sale to meet the needs of commercial and industrial applications. With their advanced technology and energy-efficient design, our chillers provide reliable and cost-effective cooling solutions.

For our full list of air-cooled chillers, view the items below. For more information about air-cooled chillers, visit our resource section.



FAQs About Air Cooled Chillers

United Rentals is the place for used air-cooled chillers for sale. Because air-cooled chillers are easily portable, they are ideal for formal events such as weddings and galas. However, United Rentals also offers stationary chillers which are great permanent fixtures for hotels, indoor malls, hospitals, large industrial buildings and other commercial properties. Plus, air chillers are less expensive and easier to maintain than water-cooled chillers because they do not require any extra equipment like cooling towers or condenser water pumps. We offer a wide selection of chiller sizes from 30-ton up to 400-ton air cooled chillers for sale from the best brands like Trane, York and more. See a listing you’re interested in? Click the blue “Request Information” button for more details, and a United Rentals team member will contact you shortly.

Learn more about our air-cooled chillers in our FAQ section below.

How does an air chiller work?

An air-cooled industrial chiller is a refrigeration system that cools fluids and works in tandem with your facility's HVAC system. It has four main parts: an evaporator, compressor, condenser and expansion valve. It works by absorbing heat from processed water. Heat transfers away from the water using the chiller's evaporator. Liquid refrigerant evaporates as it moves over the evaporator tube, creating a low-pressure gas. Next, the evaporated refrigerant travels to the compressor, where the low-pressure gas compresses into a high-pressure gas. The gas then leaves and goes to the air-cooled condensers. While in the condenser, heat is removed from the chiller by being blown outside through fans on the side of the condenser. After the gas leaves the condenser, the refrigerant changes into a high-pressure liquid. The high-pressure liquid travels to the evaporator through the expansion valve. Because an air-cooled chiller works continuously, this low-pressure liquid transfers back to the evaporator, where the cycle repeats itself.

What is the difference between an air-cooled chiller and a water-cooled chiller?

Water-cooled and air-cooled chillers work similarly. They both have an evaporator, compressor, condenser and expansion valve. The main difference is that one uses air to fuel condenser cooling and the other uses water. Air chillers are the preferred choice, especially in cases where water access is limited.

Is an air-cooled chiller more efficient than a water-cooled chiller?

Water-cooled chillers are more efficient because they condense using the ambient wet bulb temperature, which is lower than the air chillers' ambient dry bulb temperature. The lower the temperature a chiller condenses, the more efficient it is. However, air-cooled chillers are less costly and easier to maintain than water-cooled chillers.

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Maintenance, service, repair and parts — when and where you need it.

Our Customer Equipment Solutions team specializes in equipment repair and service in the field and onsite, so you can protect your investment; safeguard your employees; and meet ANSI, OSHA, and CSA requirements.

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Whether you're buying or renting, United Rentals is ready to provide United Results.

There's no such thing as downtime with United Rentals. Easily rent or buy online from the largest inventory of equipment, or call and visit any of our over 1,100 branches throughout North America. From rentals to sales to turnkey solutions, United Rentals is ready with quality equipment and decades of expertise.