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Help How to Wire Bathroom "Fan Heater Light Night-light" unit, and questions

38767 Views 9 Replies 4 Participants Last post by  DCFear
Help How to Wire Bathroom "Fan Heater Light Night-light" unit, and questions


(First, please be patient with my questions. I have done some basic home wiring repair, and also I do this by the philosophy that with anything electrical, ask even the stupidist questions. Thanks!)

I purchased a Panasonic FV-11VHL2 WhisperWarm bathroom fan, I can't wait to have it hooked up. Now, I have it mounted in my cieling, and I have ran 12/2 wiring from the panel to my attic. My questions are about how to wire this unit up, performing this to code, etc.

To help you answer my questions, here is a link to the operating manual for the VHL2, which has a "Wiring Diagram" that unfortunatelly only goes as far as the unit itself.

First lets get this question out of the way. The manual says not to be used with solid state controls, ; may cause harmonic distortion and damage fan

Q: What is a solid state control? I have bought 2 electronic timers by Woods (see below), are these solid state, and will they shorten the life of my new expensive fan?

Q: Use on on a 20 ampere branch circuit - What does "branch circuit" mean? I have ran a single 12/2 from my panel for this project.

Q: Does 20 amp mean that I'll have to combine two 15 ampere spots on my panel with a 20ampere breaker?

CD500/CD600 Countdown Electronic Timers
CD500-30 minute settings
CD600-60 minute settings
• Simple push button activation
• Illuminated time indicator with 5-10-15-30 minute time ranges
• Silent operation
• Automatically turns off bathroom fans, lights, ventilators and more
• AC 120V/60Hz, 15A/1800W Resistive, 8.3A/1000W Tungsten,1/4 HP
Note: Wall plate not included. Resistive is the rating for appliances.

Q: For code, does the heater gang box need to be completely separate from the others? A contractor in HomeDepot mentioned this...

I really could use a ncie flow chart to describe exactly how to wire this unit, which I have not found from any forum yet!

1. a single 12/2 comes in

Q: Which box does the 12/2 first go into, the heater box or the triple box?

1. vanity light (has own circuit)
2. fan light
2a. fan night light
3. fan timer
4. heater timer (separate box)

Okay, sorry about the messy switches drawing, but my mind works in images, hence my desire for a wiring flow chart. Hopefully this post helps others as well...

Q: Does the 12/2 FIRST go into the heater gang box? And then get spliced with a Black wire going to the heater, and a black wire going to the triple gang box?

This all has to be on a dedicated circuit, so the vanity wiring remains completely separate on a different circuit, yet:

Q: is it against code to have 2 different circuit breaker wires in one gang box? (in the triple box) (the vanity circuit and the heater circuit)

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I could not find a PVC 4 gang receptacle (for greater depth), so I'm stuck trying to fit one 12/2 and two 12/3's along with 3 14/3 into one 4 gang metal box. )
Try, Try your local supply house, the big box stores don't sell anything unless they can sell a jillion of them everyday. When you go into a big box store it looks like they must have everything, but in reality they only carry a small percentage of the items carried by a good distributor.

Carlon makes them:
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