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Old 10-31-2010, 08:12 PM   #16
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Wiring for replacing a bathroom fan, heater, light and night light unit.


Ok found the PDF file on this one and scroll down to thrid page it will show the connection diagram.

And by the way the white and white with red strip that is netural so double check that one.

Voila le link.,

http://www.broan.com/ImageLibrary/br...s/99043413.pdf


Merci.
Marc

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Old 10-31-2010, 11:26 PM   #17
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Wiring for replacing a bathroom fan, heater, light and night light unit.


Super pictures of the switches, Tom, Thanks!

So we are working with switches from the old installation,
and romex from the old installation,
but a new light/heat/fan unit.
The manufacturer calls for 6 wires, but we only have 5.
The tough part will be that yellow connected to white in the switch on the right. It looks like the other white wires, but must be switched because it is wired to the switch. It is a puzzlement

Well thanks to Marc we have a diagram of the new unit, Thanks Marc!
Whoops, here's a slight inaccuracy: Tom says the heater wire is red where it comes out of the unit, but the instructions say the heater wire is black. Hmmm. On the bright side the diagram says the white wire and the white/red stripe wire at the unit should be connected to the white wire from the power source, aka neutral. They could be both be wire nutted together, eliminating the need for the 6th wire.

What do you think?
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Old 10-31-2010, 11:46 PM   #18
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Wiring for replacing a bathroom fan, heater, light and night light unit.


Oh, scratch that color inaccuracy, I read the posts again and the diagram and Tom agree that the heater wire at the unit is black.
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Old 11-01-2010, 01:08 AM   #19
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Wiring for replacing a bathroom fan, heater, light and night light unit.


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Old 11-01-2010, 06:27 AM   #20
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Wiring for replacing a bathroom fan, heater, light and night light unit.


In your latest diagram, if you connected the wires in the left to right order shown (3 whites in the middle as one bundle), it should have worked.

White from below to yellow night light.
Black from below to blue main light.
White from below to both white and white/red neutrals of light/fan set.
Black from below to black heater.
Red from below to red fan.

I am guessing that the separate white neutral and white/red neutral was to give you the choice of putting the heater on a different branch circuit from the light. When things are put on different circuits, the neutral for each thing must connect only to the neutral that accompanies the hot wire being used. Alternatively some models of heater/fan units may have a 240 volt heater in which case black and yellow on one side and red/white on the other side would be the 240 volt connections.

However the leftmost white from below is what is not legal as a switched or unswitched hot up to the night light. Had that wire been a different color (but in the same place) then things would be perfect.

Nitpicking follows.

If the heater was 240 volts (and the fan 120 volts) you could not have the same single pole (with single common terminal) switch select heater versus fan.

The 6 wire "requirement" was probably mentioned because cables usually come with two or three wires as opposed to four or five. A correct way of wiring this is to have two three wire cables. The white wire in one cable is connected to the red/white wire of the fan unit with black to the main light (blue) and red to the fan (red). (Neutral and corresponding hots in same cable).
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Old 11-01-2010, 11:27 AM   #21
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Wiring for replacing a bathroom fan, heater, light and night light unit.


OK Thanks for all your Help.

So it looks like I will do the following:
R to Red (Fan Vent)
B to Black (Heat)
W to Yellow (nite Lite)

B to Blue (Lite)
W to W and WR

Do you agree? Thanks
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Old 11-01-2010, 10:52 PM   #22
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Wiring for replacing a bathroom fan, heater, light and night light unit.


Yeah, but so far I don't see a way to tell which white romex goes to the night light. Or which black goes to the heater, for that matter.
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Old 11-01-2010, 11:46 PM   #23
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Wiring for replacing a bathroom fan, heater, light and night light unit.


I am seriously advise you get a coloured electrical tape and remark one white conductor so you know that is used for nightlight connection so you don't get mixed up with the real netural is.

Merci.
Marc
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Old 11-02-2010, 05:45 AM   #24
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Wiring for replacing a bathroom fan, heater, light and night light unit.


Ah yes, remark both ends of the white wire for the night light yellow wire, better yet cover as much as the exposed white as possible. Makes it look better although it still does not meet code. You may also mark one of the black wires to distinguish it from the other. You could use red or blue tape for both.
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Old 11-02-2010, 09:57 AM   #25
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Wiring for replacing a bathroom fan, heater, light and night light unit.


Thanks all of you for all your help. I will let you know how I make out when I make these changes.

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