Subscribe to the daily news Sign in
En
Danfoss inverter scrolls now offered with IDV technology

Danfoss inverter scrolls now offered with IDV technology

Danfoss first developed the VZH inverter scroll compressor range in response to environmental and energy challenges. Delivering superior efficiency, precision, and 4:1 continuous modulation ratio, VZH compressors are suitable for commercial air conditioning and process cooling applications where low energy consumption are required. The third generation of the VZH variable-speed scroll compressors adds innovative Intermediate Discharge Valves (IDVs) in all models, boosting the line's part-load cooling performance.

VZH offers the widest range of variable-speed scroll compressor commercially available on the market. VZH compressors are qualified for use in tandem configuration to further extend the capacity range.

VZH compressors use variable-speed technology to deliver precise cooling and humidity management, low start-up current, and high energy efficiency to address the challenges of meeting today's energy regulations. The level of precision offered by VZH performs best in demanding, energy intensive applications with load variations.

Third-generation VZH compressors retain the strengths of previous generations with the added benefits that come with IDV technology (for 13 to 26TR compressors). IDVs reduce excessive refrigerant compression under part-load conditions while maintaining the same cooling capacity as standard air conditioning systems. They adapt the effort of the motor to the pressure conditions in the system, opening when the operating pressure ratio falls below the built-in pressure ratio and the pressure inside the scroll pocket exceeds the condensing pressure. This reduces the effort of the motor and its electrical consumption, improving the system’s seasonal energy efficiency.

The new VZH compressors are backward compatible with previous generations of Danfoss VZH scrolls, reducing complexity and minimizing any need for redesign and requalification.

The Danfoss VZH line with IDV technology offers a single solution with a wide operating map for multiple applications that would otherwise require different optimizations and compressor models, reducing complexity and simplifying inventory management.

Looking forward, the Danfoss VZH range is expected to be qualified for use with R-452B and R-454B in early 2020, with R-32 following soon after, offering low-GWP refrigerant solutions for the already efficiency range.

Related tags: Danfoss, air conditioning
Share

Related news

Danfoss to launch AK-CC25 controller for refrigerated display cases
Danfoss has announced the upcoming launch of the AK-CC25, a new controller designed for plug-in and remote TXV refrigerated display cases. The AK-CC25 aims to provide flexible application support, ...
16 May 2025
STULZ introduces CyberAir 3PRO DX GE4(S) with low-GWP R454C refrige...
STULZ has announced the release of its new CyberAir 3PRO DX GE4(S) precision air conditioning range, designed for use in data centres. The systems use R454C refrigerant, aligning with the EU’s ...
21 May 2025
Danfoss Introduces Two New Compressor Solutions for Heat Pumps
VZH-VI Variable Speed Scroll Compressors Expand Injection Capabilities Danfoss has expanded its variable speed scroll compressor range with the introduction of the VZH-VI series, which now sup...
13 Mar 2025
Smardt Launches AeroPure AF Series of Air-Cooled Chillers
Smardt Chiller Group has introduced the AeroPure AF Series, a new line of air-cooled chillers equipped with oil-free, magnetically suspended compressors. The series includes 72 preconfigured mo...
25 Mar 2025
Danfoss launches CO2/water brazed heat exchanger for transcritical ...
Danfoss has introduced a new CO2/water brazed heat exchanger, model H48T-CH, designed for use in CO2 transcritical systems. The unit is intended for single-phase heat recovery applications, par...
13 May 2025
Sanhua launches stainless steel GBV ball valves for refrigeration s...
Sanhua has introduced its new GBV series of stainless steel ball valves, designed for use in commercial air conditioning, freezing, deep-freezing, and other refrigeration systems. The valves are ce...
15 May 2025