Fantech fan with electronic commutation motor

The EC (electronic commutation) motors in Fantech fans make them suitable as energy-efficient products for building services.

The motors use electronics to periodically reverse the current direction between the rotor and external circuit so that DC motors can be plugged into standard 240 VAC supplies.

As the ramp-up speed is controlled, in-rush current is minimised, so that fans never draw more than the rated full-load current.

The efficient DC motor and onboard speed control reduce noise and power consumption (by running fans at half speed, power consumption is reduced by 87% and noise levels are 16 dB lower).

The motor’s electronics respond to 4-20 mA or 0-10 V signals, so it can be factory programmed to work with a wide range of sensors (temperature, air volume, air pressure, humidity, air velocity, CO₂, CO).

Fans with these motors can also be controlled using building management systems.

The demand-control ventilation system controller uses the feedback from sensors to automatically control the amount of ventilation required, reducing the need for installers to have specialised control knowledge.

The product has built-in filters and protection mechanisms (no contactors; current overloads; Star or Delta connections; motor over-temp devices; shielded cables; or EMF, RFI, EMC and line filters).

Installation is simple, requiring less wiring and labour than conventional fans. Once installed, the DC brushless motor operates cooler than an AC motor, extending the bearing life and longevity of the motor.