Turbocor® - VTT

The VTT series also extends Danfoss’ existing compressor capacity range up to 400 tons / 1430 kW.

Exclusive IntraFlow™ patented technology

Innovative and patented IntraFlow™ technology allows the VTT series of compressors to eliminate the cost and complexity of inlet guide vanes or variable geometry diffusers and, at the same time, simplifies the capacity control, extends the stable operating range, and improves compressor efficiency.

In brief, IntraFlow™ directs a fraction of the flow from the volute exit to the inlet of the first-stage diffuser through a series of nozzles. This injection of flow into the first stage diffuser provides aerodynamic incidence control to give VTT compressors the largest stable operating range of any centrifugal compressor.

• Highest full- and part-load efficiency in the industry
• Superior turndown
• Extended stable operating range
• Eliminates the need for Inlet Guide Vanes or other types of mechanical diffusers

Danfoss Turbocor^® oil-free compressors VTT are designed to allow OEMs to meet the stricter chiller efficiency requirements expected in ASHRAE 90.1-2016 using either Path A or Path B.

Applications & data

Danfoss Turbocor^® oil-free compressors VTT are designed to meet the operational requirements of water-cooled or evaporatively cooled chiller applications, and have nominal capacity ranges from 200 to 400 Tons (700 to 1430 kW).

Due to the unloading capabilities of the compressors, the VTT series is ideal for buildings that operate 24/7, such as data centers and hospitals.

The VTT Series is available for voltage applications between 380 and 460 Volts, and carries the ETL mark.