Frigopol, an Austrian company with more than 50 years experience in refrigeration and air conditioning technology, recently announced its new frequency-controlled compressor units Typerange VCC (Variable Capacity Control) for a range of control of 15 - 75Hz (cooling capacity range approx. 20kW). According to the company’s press release, the frequency control represents the most efficient control of a cold weather air conditioning system.

By the adjustment of the operating frequency of the compressor, the number of revolutions is changed, whereby the optimal performance figure of the motor and partial load ranges is permanently reached, and very high switching frequency is avoided. The frequency control represents the most efficient regulation of a cooling/air conditioning system and offers precise cooling capacity and very many cost effective economic advantages.

The ranges of application include capacity optimization in refrigerant plants with many coolers, reduction of the variations in temperature in coolers, regulation of a constant room temperature from air conditioning systems, regulation of a constant water temperature of waterchiller sets without buffer memory, and optimization of power fluctuations of large refrigerant plants.