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.


Type Name Language Valid for Updated Download File type
Catalog 2021 Danfoss Scroll Manifolding Portfolio Catalog English Multiple 09 Mar, 2021 3.9 MB .pdf
Brochure Brochure Compressors for A/C bringing Savings now and for a lifetime Arabic (AE); Bulgarian; Czech; Danish; German; Greek (modern); English; Spanish, Castilian; Estonian; Persian; Finnish; French; Irish; Hebrew (modern); Hindi; Croatian; Hungarian; Indonesian; Icelandic; Italian; Japanese; Kazakh; Korean; Lithuanian; Latvian; Macedonian; Norwegian Bokmål; Dutch, Flemish; Polish; Portuguese; Romanian, Moldavian, Moldovan; Russian; Slovak; Slovenian; Serbian (RS); Swedish; Tamil; Thai; Turkish; Ukrainian; Vietnamese; Chinese (CN) Multiple 26 Jun, 2020 4.1 MB .pdf
Brochure DSH cut sheet English Multiple 11 Dec, 2018 1.1 MB .pdf
Installation guide Instructions Danfoss scroll compressors DSH / SM / SY / SZ / SH / WSH English Multiple 06 Dec, 2022 1.6 MB .pdf
White paper Lab tests scrolls with IDVs English Multiple 02 Nov, 2017 211.0 KB .pdf
Application guide Scroll compressors, type DSH090 to DSH600 English Multiple 03 Apr, 2024 10.1 MB .pdf
Catalog Spare parts and accessories Danfoss Commercial Compressors for hermetic reciprocating and scroll compressors (AC/HP & REF) English Multiple 18 May, 2023 2.1 MB .pdf


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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.