Inverter compressors
Danfoss inverter scroll compressor VZH is the third generation of scroll compressors offering variable speed technology for commercial applications in air conditioning. It allows OEMs to stand out in the commercial HVAC and process cooling marketplaces from 4 to 52 TR (15 – 184 kW) and to exceed the upgraded energy level requirements.
Third generation of inverter scrolls VZH
Danfoss inverter scroll compressor VZH is the third generation of scroll compressors offering variable speed technology for commercial applications in air conditioning. It allows OEMs to stand out in the commercial HVAC and process cooling marketplaces from 4 to 52 TR (15 – 184 kW) and to exceed the upgraded energy level requirements.
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The energy regulations generate several challenges that can be easily taken up with variable speed technology. Inverter compressors are the best way to obtain and exceed the energy standards with high part-load and seasonal efficiency while providing several other key benefits.
On top of the advantages provided by the technology (precise cooling and humidity management, low start-up current, energy efficiency etc.), Danfoss inverter scrolls VZH have specific features that offer high value to the customers and end users.
The new generation bring further part-load and seasonal efficiency gains.
The introduction of IDV technology in all models means there is no longer need for high and low pressure compressor optimization, potentially halving inventory management requirements. IDVs and permanent magnet motors in inverter scroll compressors are the major contributors to these performance levels. Operating maps have been extended to address the need of best efficiency in more applications. Boost your packaged air conditioning units, rooftops, chillers with the Danfoss VZH range.
Features and benefits
Widest range of Inverter Scrolls, from 4 to 52TR in hybrid tandem (15-184 kW)
A prequalified compressor and drive package from a single supplier to reduce time to market and enhance reliability
A generation featuring IDVs and Permanent Magnet Motor across the range, which provides 5% higher part load efficiency versus existing alternatives inverter scrolls
Drives with EMC compliance, built-in harmonic filters, suitability for varied climates, embedded Modbus protocol
Accurate temperature control, low starting current, high energy efficiency and low acoustic level with variable speed technology
Ease of application and high system reliability
Wider operating map to cover more types of applications
Products shown: 7
VRJ
Danfoss VRJ for residential applications developed by Danfoss is a complete package consisting of a dedicated variable speed compressor, variable speed drive, application controller, electronic expansion valve (EEV), EEV controller and sensors. Three nominal system sizes are available (3, 4 and 5 TR), based on three compressor models.
VSH
The Danfoss VSH compressor is a robust and efficient scroll compressor designed for commercial air conditioning applications. It features advanced surface coatings, an organ pipe design for oil management, integrated non-return and discharge temperature protection valves, and enhanced gas flow paths to ensure reliability and performance. Compliant with low GWP and European SEER standards, the VSH compressor offers significant environmental benefits and energy efficiency, making it an ideal choice for modern HVAC systems.
VZH
Danfoss 3rd-gen inverter scrolls deliver precise modulation, multi-refrigerant capability, and enhanced energy efficiency from 4 to 26 TR. Covering a capacity range of 4 to 26 TR (15 - 184 kW) with R410A, and up to 46 TR per circuit with hybrid manifolding, Danfoss 3rd-gen inverter scrolls boast PM motors and IDV technology. Their multi-refrigerant capability, expanded to include R452B/R454B in 2020, ensures a broad operating map. Continuous modulation surpasses energy efficiency standards, providing tight temperature and humidity control along with low in-rush current. These compressors stand as a technically advanced solution, delivering precision, adaptability, and efficiency across a wide spectrum of cooling and heating applications.
