Outdoor Condensing Unit, 3.5-28kW

Liebert PFH, Outdoor Condensing Unit, 3.5-28kWThe Liebert PFH propeller fan condensing units are designed to be used in conjunction with the Liebert Mini-Mate2, Liebert DataMate and Liebert Challenger 3000 evaporator units, supporting efficient data center heat management.

The Liebert PFH Condensers are available in nominal capacities of 3.5 to 28kW (1 to 8 tons). Split-system condensing units are connected to the evaporator unit by two refrigerant lines (four for 28 kW (8 ton) model) and a low voltage control cable. The condensing unit, available in 50 or 60Hz, requires a separate power source and an outdoor disconnect switch.



  • Outdoor air-cooled condensing unit
  • Supports smaller Liebert precision cooling systems
  • Installs easily
  • Operates quietly




  • Offers models for use in ambient temperatures up to 115°F (46°C)
  • Offers Quiet-Line models to meet municipal noise codes

Higher Availability

  • Operates with quiet, high efficiency scroll compressor with internal vibration isolation mountings, pressure safety controls and built-in overload protection
  • Features standard scroll compressor, hot gas bypass, crankcase heater, high pressure switch, condenser coil, sight glass, filter/dryer, direct drive propeller fan and motor, and Lee-Temp flood back head pressure control

Lowest Total Cost Of Ownership

  • Delivers to the site fully wired, piped and tested
  • Runs efficiently at partial load conditions and reduces compressor start/stop cycles and resultant wear by using hot gas bypass feature
  • Allows faster and efficient plan approval and building inspection with CSA agency approval

Ideally Suited For

  • Data centers
  • Telecommunications facilities
  • Industrial process control centers
  • Laboratories
  • Other sensitive electronic applications