3 way switch wiring..

atlanta39May 22, 2010

hi guys,

im currently fixing a furnace blower for a shop fan. The blower has 3 speeds..low,med,and high. I want to add a switch to power each speed.. I was told i would need 2 3way switches and 1 reguar switch. I have wired up switches before but not 3 way.. can someone explain how to wire up these 3 way switches so each blower speed works seperately and only one switch can work at a time. For example if low is on i cant turn med on until low is off etc..can someone put me on the right path..thanks for help

Thank you for reporting this comment. Undo
brickeyee

Something does not sound correct.

What switching are you trying to achieve?

A single pole 3 throw (position switch. AKA 1P3T) sounds a lot more likely than a 3-way switch.

    Bookmark   May 22, 2010 at 7:58PM
Thank you for reporting this comment. Undo
atlanta39

i was told a 3 way thats why im here to see if my information is correct.. all i want is to wire the different fan speeds up where they can only work one at a time.any ideas

    Bookmark   May 22, 2010 at 8:19PM
Thank you for reporting this comment. Undo
hendricus

One reg. switch, power in and to 1st 3way.

First 3 way power from switch on common. Line one to fan speed 3 and line 2 to second 3 way.

On second 3way switch run your power into the common. On one terminal run the 1st speed on the second run the 2nd speed.

Or you can buy a 3 way switch especially for fans found on most box fans.

    Bookmark   May 23, 2010 at 8:18PM
Thank you for reporting this comment. Undo
brickeyee

"Or you can buy a 3 way switch especially for fans found on most box fans."

These switches are NOT going to handle an induction motor blower fan.

They are designed for light duty shaded pole motors.

    Bookmark   May 24, 2010 at 9:34AM
Thank you for reporting this comment. Undo
atlanta39

ok..i looked on the fan switch just to see it says 110 volt-6amp so i guess it wont work.any suggestions on a switch that will work..

    Bookmark   May 24, 2010 at 7:14PM
Thank you for reporting this comment. Undo
ionized_gw

It might be difficult to find a switch that will handle that kind of current. I have seen two-speed fans that draw more than that, but unless you find a surplus switch, I fear that you will be over budget since this seems like a miserly project.

The least expensive way to do this might be to use a combo of surplus relays and a common three-way fan switch to control them. It might get a lot simpler or less expensive if you settle for two speeds.

    Bookmark   May 26, 2010 at 8:24PM
Sign Up to comment
More Discussions
new wiring project
I have a water damaged room I will soon be renovating....
CharlesInVT
Multiple Fluorescent Ballasts in one light fixture
Hello GardenWeb. I'm not new here, but couldn't log...
MikeM21
Help with 240V 50A location
I'm trying to do a challenging kitchen layout. I will...
12crumbles
Motion sensor that doesn't click
I have a motion sensor very much like the picture attached...
drmeow3
Replacing fan speed dial back to standard toggle?
I am removing a ceiling fan and replacing it with a...
onkyokoi
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™