The Tranquility Series Model TMW100 water-to-water heat pump utilizes EarthPure® (HFC-410A) refrigerant. It is available in 28-ton (10-kW) capacity. The heat pump can be used for radiant floor heating, snow/ice melt, chilled water, hot/chilled water for make-up air, and other applications. The single side service access, in the front of the unit, and staggered, top-mounted water connections allow multiple units to be installed side-by-side for large-capacity installations. Features include a coaxial heat exchanger, microprocessor control, and extended range water/refrigerant circuits.

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

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