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Wiring Question - Leviton Countdown Timer on 3-Way Circuit

  • Last Updated:
  • Jun 9th, 2020 9:22 pm
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Mar 15, 2007
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Toronto

Wiring Question - Leviton Countdown Timer on 3-Way Circuit

I'm aiming to install a Leviton countdown timer (LTB60) in a second floor bathroom to control a fan. The snag is that this fan is also controlled by a switch on the first floor in a 3-way setup.

First question, the Leviton instructions say that the countdown timer will not work with "regular" 3-way switches and must be used in conjunction with a Leviton switch (VP0SR). Is this true or are they trying to get you to buy more of their stuff?

Second question is wiring in the bathroom. I think I've identified the Line Hot and Line Neutral wires on the existing switch. I assume the other two black wires are the travelers. Does it matter which traveler wire is attached to the red and which traveler wire is attached to the red yellow/red wire on the countdown timer?
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