Help with wiring whole house fan control


  #1  
Old 07-06-14, 06:53 PM
M
Member
Thread Starter
Join Date: Jul 2014
Posts: 2
Upvotes: 0
Received 0 Upvotes on 0 Posts
Help with wiring whole house fan control

Hello,

I am a new homeowner, and I have a whole house fan installed.

The current timer switch is not working well, and I would like to replace the entire unit.

It currently is setup as follows: Two switches, a knob on the left which controls the fan speed: Off, low or high. There is then a manual egg-timer-like power knob on the right.

I see the following wires connected to the speed control knob:

1: Red, connected to the house red
2. Black, connected to the house black
3. Brown, connected to the timer-switch
4. Blue, connected to a different house black.

I also have neutral white wires and bare copper grounds buried in the box

Please see the following images:

Name:  photo 4-1.jpg
Views: 2359
Size:  27.0 KBName:  photo 3-1.jpg
Views: 3704
Size:  28.5 KBName:  photo 1-1.jpg
Views: 3892
Size:  29.0 KB
Name:  photo 2.jpg
Views: 1744
Size:  42.7 KB

I was hoping to modernize the system by using these two switches:

Lutron MA-T51MN-LA Maestro 600-Watt 3-Amp Multi-Location Digital Countdown Timer Control Switch, Light Almond - Wall Timer Switches - Amazon.com

http://www.amazon.com/gp/product/B00...=ATVPDKIKX0DER

Are these the correct choices? How would I wire them to the current system?

Thanks!
 
  #2  
Old 07-08-14, 04:06 AM
M
Member
Thread Starter
Join Date: Jul 2014
Posts: 2
Upvotes: 0
Received 0 Upvotes on 0 Posts
Stumped? Or did I ask the question poorly?
 
  #3  
Old 07-08-14, 08:07 AM
ray2047's Avatar
Member
Join Date: Mar 2006
Location: USA
Posts: 29,711
Upvotes: 0
Received 15 Upvotes on 13 Posts
Line (the power in wire) goes to the timer first. Power out from the timer goes to power in on the speed control. Power out from the speed control goes to the fan.

However if the timer does not have a neutral this may not work because of the speed control.

No horsepower rating on either the timer or the speed control so can't say how long they will last. Do not know if the speed control will work with the type of motor on your whole house fan.
 

Last edited by ray2047; 07-08-14 at 08:23 AM.
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: