The Airstack™ ASP modules air-cooled line of chillers are available in 10-, 15-, 20-, 30-, and 60-ton packages, each with dual-scroll tandem compressors. Available with high-static condenser fans for ducted applications, the units can be combined to create up to 600-ton units. Features include multiple independent refrigeration circuits, comprehensive computer monitoring of operations, automatic diagnostic recording of fault conditions, and automatic rotation of lead compressors. Also available is the MagLev™ (Magnetic Levitation) compressors model, starting at 75 tons and offering the ultimate in controls and efficiency, said the company.

Multistack, 1065 Maple Ave., Sparta, WI 54656; 608-366-2400;

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