Variable Frequency Drive
General characteristics
The variable frequency drive for AC applications represents CAREL's most flexible solution for managing variable flow-rate thermodynamic circuits: an inverter that can control the rotation speed of traditional AC induction motors. Speed modulation allows devices such as fans, pumps and compressors to adapt the flow-rate delivered based on instant load requirement, thus ensuring best system control and at the same time lower energy consumption.
CAREL has a wide range of products available for every need, from single-phase to three-phase power supply, in a variety of sizes: from 0.37 to 75 kW. In addition, all products come with a built-in display, IP20 and IP55 international protection for the same size. A new smarter and more compact solution, which can easily adapt even to the most extreme environments, thanks to a special resin treatment on the PCB and a working temperature range extending above 50° *.
Some examples where the product can be used are:
- modulation of fan speed on air handling units;
- modulation of compressor capacity;
- modulation of flow-rate on pumps supplying the systems and evaporator pumps in chillers;
- condensing pressure control on ventilation units.
*refer to the specific product technical manual
