Wiring a two speed Pump with a 3 position switch

[cj74bronco]

All I am trying to wire a 2 speed Jany stealth pump rated at 1.5 hp. I currently have a 1 speed pump running off an on / off mechanical dail clock. I would like to be able to control the speed with a 3 position wall switch mounted in an oulet box. How would I go about wiring this?


http://www.zorotools.com/g/Wall%20Switc ... /00009523/

Thanks
Cory

 

[Bama Rambler]

Assuming you mean the 3-position, center off switch (HBL 1385W). You'll hook the power from the timer to the common terminal and low speed to one side terminal and high speed to the other side terminal.

 

[Durk]

Only thing is that switch is rated at 1hp and you have a 1.5 hp motor. The amp rating is 20 which is plenty so I don't know how big a problem that is.

I just did this with this switch from the same company:http://www.zorotools.com/g/Panel-Mount Switches/00057631/

...a 2hp toggle SPDT panel-mount (also 20 amp) G1036253 and then I got an all-weather rubber toggle boot to cover it. I do not like the idea of a Center-off position as you would then have the possibility of the motor appearing to be off while one leg is energized. If my pump is off, I want it OFF--not energized on either leg. That might be code, too, although it wasn't some time back. This switch has no Center-off.

In any case, you will need one additional conductor from the motor to the switch--I ran another #12ga. THHN inside the existing flexible conduit, and then I put the switch between the timer and the pump, wired as described above.

 

[Ohm_Boy]

A DPDT Center-Off switch can safely be used to break both conductors. Here's how:
[attachment=0:21vohlbi]Hi-Low-On-Off_DPDT.jpg[/attachment:21vohlbi]

 

[Durk]

A DPDT Center-Off switch can safely be used to break both conductors. Here's how:
[attachment=0:2sd3mvt6]Hi-Low-On-Off_DPDT.jpg[/attachment:2sd3mvt6]

Yes, absolutely, but none of the switches the OP linked to are DPDT, hence my concern. The three position switch is a single-pole, double-throw, probably meant for a 115v hi-lo fan motor. The others are 3-way and 4-way lighting switches.

 

[Ohm_Boy]

I've posted these before...

here are some search links for 20 amp DPDT center-off toggle switches from Grainger, Digikey, and Mouser. And for those in Orlando, Skycraft.

Grainger search DPDT ON-OFF-ON Motor-rated, 20A
http://www.grainger.com/Grainger/wwg/se ... 4293703197

Digikey search (toggle switches) DPDT ON-OFF-ON 20A
http://search.digikey.com/us/en/cat/swi ... 0On-Off-On

Mouser search (toggle switches) DPDT ON-OFF-ON 20A
http://www.mouser.com/Electromechanical ... 0A&FS=True

Skycraft Surplus DPDT On-Off-On 20A
http://www.skycraftsurplus.com/search.a ... Off-On+20A