The Tranquility 27™ line of geothermal and water source heat pumps uses EarthPure® (HFC-410A) zero ozone depletion refrigerant. The unit’s heat pumps are available in sizes ranging from 2 through 6 tons with efficiencies up to 31.5 EER and 5.1 COP, and are rated for water loop heat pump, ground loop heat pump, and ground water heat pump applications in upflow, downflow, horizontal, and split system configurations.

- ClimateMaster, Inc.