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.
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
Patents
Watch an introduction to variable speed technology that enables sustainable air conditioning.
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Find datasheets for various VZH compressor code numbers.Â
Danfoss' VSH inverter scroll compressor is a first-generation offering with variable-speed technology for commercial applications in air conditioning and process cooling.
VRJ—Danfoss' first high-tier residential inverter scroll compressor with frequency converter.Â
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.
Explore all facets of variable-speed technology for efficient commercial air conditioning and precision cooling. Find system descriptions, cases, training, and more.