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Semi Hermetic Compressors High Efficiency Discus - R22
The key difference between Discus™ and traditional reciprocating technologies lies in the valve plate design. The Discus™ valve plate allows gas to flow into the cylinders with a minimum heat gain, while suction cavities are designed to smoothly route the gas to minimize losses. These effects lead to superior cooling capacity due to no re-expansion volume and up to 12% higher efficiency compared to conventional “cost-effective” reed type compressors resulting in lower operating costs for the end-users. Key features and benefits include:
  • Highest level of efficiency available on the market, whatever the refrigerant and operating condition
  • Integrated oil pump and Electronic Oil Pressure Switch OPS1 for maximum reliability
  • Two motor sizes per displacement, optimized for different applications
  • Large operating envelope that allows medium and low temperature applications to be covered by one single model with condensing limit as low as 5°C
  • Provide cooling capacity modulation either by cylinder head blocked suction or with use of frequency inverters from 25 to 60Hz
  • Multi-refrigerant compressor range – one model to cover all standard refrigerants
ModelCompressor DataMotor Versions(2)
 Nominal HPCooling Capacity220/240-1-50380/420-3-50
HPkW(1) R22
2DL-400 DC 4.03.1 AWM
2DB-500 DC 5.04.0 AWM
3DA-500 DC 5.04.5 AWM
3DC-750 DC 7.55.4 AWM
3DS-1000 DC 10.07.5 AWM
(1) kW @ Std. Cond. for: R22, Evaporating -35°C, Condensing 40°C, Suction Gas Return 20°C, Subcooling 0K
(2) Motor versions : for all other motor versions, please contact our sales offices