DSH with IDV technology

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High efficiency in part-load conditions

Danfoss scroll compressors feature a wide application envelope and suit such varied applications as rooftops, chillers, or process cooling systems, reducing the number of items held in reference and inventory. Danfoss DSH scroll compressors feature intermediate discharge valve (IDV) technology, extending the operating envelope even further for incredible flexibility in system designs.

Danfoss IDVs are located close to the discharge side within DSH compressors. They reduce excessive refrigerant compression under part-load conditions while maintaining the same ideal cooling capacity. IDVs open when discharge pressure falls below the built-in optimization point, adapting the effort of the motor to varying load and pressure conditions in the system. This reduces the system's electrical consumption and improves seasonal energy efficiency.

Features and benefits

Innovative intermediate discharge valve (IDV) increases seasonal efficiency

IDV technology further enhances part-load efficiency with minimal redesign costs

Carbon bearings improve behavior under poor lubrication conditions

Manifold configuration offers high reliability for staged modulations

Improved part isolation reduces greatly noise

Capacity range: 7.5 to 50 TR


  • Flow passage
  • Gas path flow with gas intake
  • Motor-centering spacer
  • Motor cap
  • Optimized housing
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Datasheet generator

Use the Danfoss online datasheet generator for DSH series scroll compressor datasheets tailored to your application.


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The truth is Cool(selector®2)

Coolselector®2 features unbiased calculations for the selection of refrigeration and air conditioning components based on the user’s requirements or based on standard operating conditions.