Semi-Hermetic Compressors Line Up
Semi Hermetic Comp. High Efficiency Discus - R404A
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) R404A
2DC-50X 5.02.1 AWM
2DD-50X 5.02.8 AWM
2DL-75X 7.53.6 AWM
2DL-40X 4.03.8 AWM
2DB-50X 5.04.6 AWM
2DB-75X 7.54.9 AWM
3DA-75X 7.55.2 AWM
3DA-50X 5.05.7 AWM
3DC-100X 10.06.6 AWM
3DC-75X 7.57.0 AWM
3DS-150X 15.09.1 AWM
3DS-100X 10.09.6 AWM
8DH-500X 50.026.3 AWM
8DL-370X 37.028.0 AWM
8DJ-600X 60.032.7 AWM
8DT-450X 45.034.7 AWM
(1) kW @ Std. Cond. for: R404A, Evaporating -35°C, Condensing 40°C, Suction Gas Return 20°C, Subcooling 0K (Dew Point data)
(2) Motor versions : for all other motor versions, please contact our sales offices