Belt drive 2 speed whole house fan 110 volt

[timtom58]

Has anyone ever controled a 2 speed wholehouse fan with a tandom single pole/3-way, and a 12 hour timer? It seems doable, but im having a brain lapse.

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[fireryan]

Has anyone ever controled a 2 speed wholehouse fan with a tandom single pole/3-way, and a 12 hour timer? It seems doable, but im having a brain lapse.

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What's the single pole switch controlling. You could use a 3 way switch to run the fan on either the switch or the timer

 

[fireryan]

Your load would just come off of the common of the 3 way. Put your hot on one of the terminals and your timing circuit on the other terminal. So of the 3 way is in one position it would run all the time. If you switch it the other way it would just work off the timer. Be like a hand off auto switch without the off

 

[infinity]

I would feed the timer first then the 3-way switch. The timer will provide running time control and the three way will select the fan speed.

 

[fireryan]

I would feed the timer first then the 3-way switch. The timer will provide running time control and the three way will select the fan speed.

Yep good call I didn't see the 2 speed part

 

[timtom58]

What's the single pole switch controlling. You could use a 3 way switch to run the fan on either the switch or the timer

Controls were not connected in wall on arrival . 2 gang plate has this is the wall plate, nothing connected though.

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[kwired]

Controls were not connected in wall on arrival . 2 gang plate has View attachment 14858 this is the wall plate, nothing connected though.

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Are you asking how that should be connected?

 

[fireryan]

Controls were not connected in wall on arrival . 2 gang plate has View attachment 14858 this is the wall plate, nothing connected though.

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That top switch can't be a single pole

 

[infinity]

That top switch can't be a single pole

Even if it just shunts out the timer?

 

[timtom58]

Yep good call I didn't see the 2 speed part

But the constant on, for the single pole switch, feed off timer? or share the hot between timer and switch for bypass?

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[kwired]

Connect it like this:

 

[infinity]

Connect it like this:

That's what I was thinking, with the SP switch closed the fan still runs even if the timer times out and opens.

 

[timtom58]

Thats what I thought , thanks for all of everyones input

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