Variable-speed inverter scroll compressors

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Unparalleled part-load and seasonal efficiency

Danfoss VZH, VSH, and VRJ inverter scroll compressors for commercial air conditioning deliver the highest possible cooling capacity using variable-speed technology. These compressors provide step-less modulation and are qualified and pre-equipped for tandem configurations.

Variable-speed technology offered in Danfoss inverter scroll compressors, with its high part-load and seasonal efficiencies, is one of the best ways to address the challenges posed by ever-changing energy regulations. Inverter scroll compressors also offer precise cooling and humidity management, low start-up current, and more.

Features and benefits

Capacity modulation adapts motor speed to vary load continuously, quickly, and smoothly for great comfort and reliability

Accurate temperature control, low starting current, high energy efficiency, and low acoustic level with variable-speed technology

Short-cycling is limited by user-defined minimum run times.

Lead-free polymer bearing with excellent performance under diverse loads and speeds

Permanent magnet motor maintains efficiency at all speeds

Driver-managed motor protection

Range: 4–52 TR (including hybrid tandem); 15–184 kW


  • Oil injection system
blueprint of inverter technology in Danfoss A/C systems

Inverter technology in A/C systems

Watch an introduction to variable speed technology that enables sustainable air conditioning.

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VZH datasheets

Find datasheets for various VZH compressor code numbers. 

Product range


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 Danfoss Inverter Scrolls VZH series - EN English Multiple 21 Aug, 2020 1.4 MB .pdf
Installation guide Danfoss commercial compressor Crankcase Heater English; French; Italian Multiple 03 Jan, 2023 471.2 KB .pdf
Application guide Danfoss scroll compressors VZH052-065 - R410A English Multiple 24 Oct, 2019 3.1 MB .pdf
Installation guide Discharge thermostat kit German; English; French Multiple 04 Feb, 2016 103.1 KB .pdf
Application guide Guideline Hybrid tandem VSH with SH - R410A English Multiple 09 Oct, 2014 2.8 MB .pdf
Application guide Guideline Inverter scroll compressors VSH088-117-170 English United States 19 May, 2016 2.7 MB .pdf
Application guide Guideline Inverter scroll compressors VSH088-117-170 English Multiple 19 May, 2016 2.8 MB .pdf
Installation guide Instructions VSH compressors English Multiple 27 Sep, 2010 1.0 MB .pdf
Installation guide Instructions, VSH compressors Bulgarian; Czech; Danish; German; English; Estonian; Finnish; French; Hungarian; Italian; Dutch, Flemish; Polish; Portuguese; Romanian, Moldavian, Moldovan; Swedish; Chinese (CN) Multiple 17 Mar, 2011 4.1 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
Installation guide Surface Sump Heaters - Instructions English; French; Italian Multiple 15 Jun, 2017 337.7 KB .pdf
Installation guide VZH088-117-170 Compressor English Multiple 10 Aug, 2023 831.8 KB .pdf


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