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VTZ NTZ MPZ

The VTZ – Truly Adaptive Cooling Technology

Refrigeration compressors are usually selected based on their performance with maximum expected system loads. But what happens when systems spend up to 85% of their time well below maximum load?

VTZ highlights
  • Integrated new functionalities. Oil return management, Overload limitation, Anti short cycle protection, Discharge gas temperature monitoring (Accessory), Compressor rack controller: 1 variable speed+ 2 fi xed speed cprs
  • High COP across operating range
  • Optimal load / capacity adaptation; a truly adaptive cooling technology
Avoid oversized and short cycling systems by choosing a compressor that automatically adapts to the current load. By combining an efficient VTZ compressor with a CD Compressor Drive, we have created an innovative and intelligent compressor package that utilizes variable speed technology to ensure superior effi ciency across the entire operating range.

High COP and flexibility

Frequency converter variable speed technology ensures optimum efficiency throughout the entire operating range with no control overshoot. Rotation speed can be varied within a frequency band ranging from 30-90Hz, with motor speeds ranging from 1800 to 5400 rpm, resulting in significant energy savings and low noise when running at low loads.

Intelligent operation for long life

The limited number of on-off cycles combined with an inherent soft starting feature reduce mechanical stress on the compressor, resulting in greater life expectancy.

Plug and play

All VTZ package units are delivered factory preset and are equipped with a wide range of integrated functions that enable easy installation, setup and control.

Applications
  • Industrial cooling processes
  • Refrigerated compressed air dryers
  • Petrol station, superette multi evaporators refrigeration systems
  • Refrigerated food processing
Refrigeration Solutions

Working Conditions Change - Your Requirements Don't!

The future is here - refrigeration solutions from Danfoss!
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