The award-winning Tranquility Large (TL) Series raises the bar for water-source heat pump efficiencies, features and application flexibility. Not only does the Tranquility Large Series exceed ASHRAE 90.1 efficiencies, but it also uses EarthPure® (HFC-410A) zero ozone depletion refrigerant, making it an extremely environmentally-friendly option. Tranquility Large Series is eligible for additional LEED® (Leadership in Energy and Environmental Design) points because of the “green” technology design.

  • Vertical sizes 084 (7 tons, 24.6 kW) – 300 (25 tons, 87.9 kW)
  • Unit configuration can be ordered with or converted to front or back return and top, front, or back discharge
  • Field conversion uses all existing parts including panels and belts
  • Electrical box can be field converted to be on front or back of unit
  • Electric power can enter from any side of unit
    Water and drain can be connected to either side
  • Dual refrigeration circuits (TL168, 192, 240, 300)
  • Exceeds ASHRAE 90.1 efficiencies
    TXV metering device
  • Extended range (20 – 120°F, -6.7 – 48.9°C operation)
  • Microprocessor controls standard (optional DXM and/or DDC controls)
  • LonWorks, BACnet, Modbus and Johnson N2 compatibility options for DDCcontrols
  • Unit Performance Sentinel monitoring system
  • ClimaDry® II Modulating Reheat Option (TL vertical series only)


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