AC fan compatibility

Would this fan work with a fan controller? I bought two second hand ones that already have capacitors installed.

It looks like it should unless I'm missing something.

https://uk.rs-online.com/web/p/ceiling-fans/1369560

Thanks

 

According to the web site it has a capacitor start/run motor and electronic speed controller, so it's not using a capacitor dropper that the shutter relay is designed for. You could use a standard relay to turn it on and off though.

 

Really? Where did you read that?

It doesn't even come with a controller as far as I can tell unless I'm missing something?

 

Product details under your link.

 

https://www.anda.co.uk/wp-content/uploads/Sweep-Fans.pdf

That's the info from the actual manufacturer.

Does that make more sense? I assume the start capacitor is left as-is, and the caps on the Fan Controller are the running capacitors?

 

The motor has 2 windings. One is connected directly to the incoming mains, and the other is connected via a series capacitor. This create 2 out of phase magnetic fields that generates the torque. The capacitor is in circuit all the time (some motors disconnect the capacitors once the motor is up to speed so they can't be speed controlled). The direction of rotation is determined by which side of the capacitor the voltage is applied to. Theoretically by inserting external series capacitors you will drop the voltage and hence lower the speed but since they only offer an electronic speed controller their may be reasons why using capacitors with this motor is undesirable. The fan speed controller doesn't come with a capacitor. Normally you remove the supplied speed control capacitor from the fan and move it to the fan controller, so you would have to source a fan speed control capacitor of the appropriate value. You could always try asking the manufacturer.