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
2DC-500 5.07.7 AWM
2DC-50X 5.07.7 AWM
2DD-500 5.09.1 AWM
2DD-50X 5.09.1 AWM
2DL-750 7.511.4 AWM
2DL-75X 7.511.4 AWM
2DB-750 7.514.0 AWM
2DB-75X 7.514.0 AWM
3DA-750 7.516.1 AWM
3DA-75X 7.516.1 AWM
3DC-1000 10.019.2 AWM
3DC-100X 10.019.2 AWM
3DS-1500 15.025.7 AWM
3DS-150X 15.025.7 AWM
D4DA-2000 20.029.3 AWM
D4DA-200X 20.029.3 AWM
D4DH-2500 25.037.1 AWM
D4DH-250X 25.037.1 AWM
D4DJ-3000 30.043.6 AWM
D4DJ-300X 30.043.6 AWM
D6DH-3500 35.055.4 AWM
D6DH-350X 35.055.4 AWM
D6DJ-4000 40.064.4 AWM
D6DJ-400X 40.064.4 AWM
8DH-5000 50.074.4 AWM
8DH-500X 50.074.4 AWM
8DJ-6000 60.089.2 AWM
8DJ-600X 60.089.2 AWM
(1) kW @ Std. Cond. for: R22, Evaporating -10°C, Condensing 45°C, Suction Gas Return 20°C, Subcooling 0K
(2) Motor versions : for all other motor versions, please contact our sales offices