On 1/30/2018 11:24 AM, Dave, I can't do that wrote:
Hi All,

Subject says it all. We have a 110vac, 1/3hp, 2-speed motor on the swamp.

https://www.homedepot.com/p/2-Speed-...2204/100013540

I would like to have variable speed. Are there any kinds of controllers that will do this without changing motors?

The Low speed is not low enough so I a looking to just use the High speed wire to the motor and spread control over the entire rpm range.

I am looking for a low cost thing. Kinda like a ceiling fan control that handles a 1/2hp motor. I say "1/2hp" for a little wiggle room if I have to change motors at some time in the future.

Possible?

Thanks






Probably not. It most likely has a start circuit that doesn't kick out
until it reaches a certain RPM. That being said, you can close the
louvers. It doesn't really affect the load from the squirrel cage if
the air flow is reduced mechanically. It just spins in its own
turbulent air.