The Tranquility Rooftop (TRE Series) is the newest member of the company’s family of water-source heat equipment. The 3-to-20-ton heat pump line offers the option of introducing a fixed amount of outside air year-round or a modulating economizer to provide free cooling when outdoor conditions are favorable. According to the manufacturer, the units are designed for an extended range of source water temperatures, making it suitable for closed-loop, or ground-source closed-loop systems. With the ground-loop conditions, the efficiency can range from 15 to 18 EER. This unit includes high-efficiency scroll compressors and belt drive motors. The series is designed to be mated to an energy recovery ventilator unit for maximum energy efficiency in a make-up air unit. Features include galvanized steel construction with polyester powder-coat paint, Copeland scroll compressors, insulated cabinetry, a TXV metering device, slide-out blower assembly with high-efficiency motors, and a unit performance sentinel performance monitoring system.

ClimateMaster Inc., 7300 SW 44th St., Oklahoma City, OK 73179; 405-745-6000;

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