Installing timer for bathroom fan... wiring help

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  #1  
Old 09-29-14, 09:52 PM
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Installing timer for bathroom fan... wiring help please

Hi,

I'm trying to connect a Leviton LTB60-1LZ countdown timer for my bathroom fan. This is in a new build home so I am hoping the wiring is quite standard.

The documentation for the Leviton timer is available here:
http://www.leviton.com/OA_HTML/ibcGe...minisite=10251
This is for a single pole location. This model timer requires a neutral connection.

The bathroom light/fan combo is a Broan 744 recessed fan/light combo. It's probably this one: 744 Recessed Fan/Lights -Bath and Ventilation Fans - Broan

I have drawn 2 diagrams (very rudimentary!) of what I found in the wall box, and how I initially tried connecting it. There was a neutral wire in the box but it was not hooked up initially.

White=neutral
Black=line
Red=load
Green=ground
Triangle=wire screw connector

Initial finding:
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First attempt:
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The timer did not power on at all, so I am not sure if it is defective, my neutral is not actually neutral, or I mis-wired it.
 

Last edited by Waylo; 09-29-14 at 10:39 PM.
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  #2  
Old 09-30-14, 07:37 AM
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No. The cable on the left is line.

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  #3  
Old 09-30-14, 07:38 AM
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On your fan timer, the black coming from the 2 wire cable should connect to the black on the timer. The red lead from the timer should connect to the black wire on the 3 wire cable.

Red on a device is usually the switched leg of a circuit.

Don't let the red wire in the cable throw you - it feeds the light.
 
  #4  
Old 09-30-14, 01:11 PM
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Thank you both @ray2047 and @aandpdan for your simultaneous comments!

Switched the wiring for the red/black and it works great. Wouldn't have risked that without the advice here though.

(I was hoping my highschool/college intro physics would help me with understanding the wiring, but... NO).
 
  #5  
Old 09-30-14, 01:48 PM
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Glad we could help. Thanks for letting us know.
 
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