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Danfoss scroll compressors dedicated to heating applications, opimized for R410A. Energy-saving and economical solution with compact dimensions for commercial heat pumps. Compressors ensure system reliability, component count reduction and downtime. Displacement from 15,4 m³/h to 29,6 m³/h. PSH compressors have an extended operating envelope thanks to a liquid injection system and an integrated electronic module. The product reliability is improved via map monitoring, data storage and bus communication. PSH compressors are suitable with a patented Surface Sump Heater (SSH) with integrated insulation, which largely contributes to the reduction in sound level.


  • medium evaporating temperatures
    • (R410A from -30°C to 25°C)
  • heat pumps for heating in factories, offices, shopping malls, etc.

PSH series features:

  • displacement from 15,4 to 29,6 m³/h
  • heating capacity:
    • from 19,8 k W to 38,8 kW (for te=-7,0ºC, tc=50,0ºC, SH=10K, SC=5K, R410A)
  • cooling capacity:
    • from 13,3 kW to 26,8 kW (for te=-7,0ºC, tc=50,0ºC, SH=10K, SC=5K, R410A)
  • filled with POE polyester oil

Standard equipment:

  • assembly kit including rubber silencers with sleeves, bolts, nuts and washers
  • liquid injection valve
  • work system control module (OCS) mounted in the terminal box

Optional equipment:

  • belt type heater
  • soft-start kit
  • discharge thermostatic protection

PSH series advantages:

  • optimized for heat pumps operating in extreme conditions
  • an innovative liquid injection system minimizes the costs of using the installation
  • wide range of operating temperatures
  • high reliability reducing downtime
  • DHW up to 60 ° C at an ambient temperature of -15 °C
  • a simpler and more efficient solution for OEMs 25% cost reduction

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