By stepless or multi-step speed control of the three-phase fans, the frequency inverter adjusts the air flow to match the building requirements. Other benefits of the inverter include energy efficiency, motor against overload protection and lower noise level. The fan speed control may be controlled using the following inverters:
– F Inverter intended for retrofitting in the existing or designed control panel in compliance with the inverter operation specifications;
– FZS Inverter incorporating power supply protection and on/off switch in the built-up control cabinet.