Need Advice On Installing 240v And 120v Circuits For Dryer/washer - Electrical - DIY Chatroom Home Improvement Forum


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Old 03-24-2012, 09:57 PM   #1
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Need advice on installing 240v and 120v circuits for dryer/washer


I'm installing a washer/dryer on 2nd floor of 2 family home. They will be stacked in the bathroom in what was a closet next to the tub. The water/drain connections are in place already. I need to run the electric and the dryer venting. An electrician will be making the final connections at panel, I am just running the wire. This will not be inspected, but would like to be as safe and as close to code as possible.
There is an existing empty 3/4" PVC conduit from basement, 25' up the side of the house and entering the roof soffit. The conduit run continues 25' across the attic laying on top of the joists and terminating in small box above laundry location. In the basement the conduit comes straight in 3' and terminates in a small box about 1' from the main panel.

I want to use some wire that I already have. #10AWG THWN stranded. I have red, white and green.
I will install 4 wires for dryer circuit (green,white, red and another red taped black at ends and at intervals entire length.)
I will install 3 wires for washer circuit (green, white, red)
Should I tape this red wire black?

Can I use this wire for the entire run or should I splice to NM 10/3 & 10/2 with ground to complete the final runs to the panel and to the receptacles? I was thinking of adding more conduit from the jbox down inside of wall to the receptacles.
Can I buy a 3 gang box and put both a 240v & 120v GFCI outlet in it?
In the basement, can I use non metallic seal tight to go from Jbox to panel?

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Last edited by brettnbham; 03-24-2012 at 10:01 PM.
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Old 03-24-2012, 10:26 PM   #2
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Need advice on installing 240v and 120v circuits for dryer/washer


Use a two gang box for the dryer recep and a seperate single gang box for the washer recep. 12 gauge wire would be sufficient for the washer. No need to re-identify any of the red wires. You may use the wire you have for the entire circuit provided it is in conduit.

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Old 03-24-2012, 11:46 PM   #3
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Need advice on installing 240v and 120v circuits for dryer/washer


Does it matter where I put the outlet? I wanted to put it on the left side wall, but the only studs are at each corner.

The closet area is only about 24" deep. The washer/dryer will protrude about an inch past the door frame. There will be 8" of clearance on left side, where I would like to put the outlets.

Should I put the outlets side by side, on opposite sides of stud or vertically on same side of stud? If vertical, how much space between outlets?
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Old 03-25-2012, 08:32 AM   #4
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Need advice on installing 240v and 120v circuits for dryer/washer


Quote:
Originally Posted by brettnbham View Post
Does it matter where I put the outlet? I wanted to put it on the left side wall, but the only studs are at each corner.

The closet area is only about 24" deep. The washer/dryer will protrude about an inch past the door frame. There will be 8" of clearance on left side, where I would like to put the outlets.

Should I put the outlets side by side, on opposite sides of stud or vertically on same side of stud? If vertical, how much space between outlets?
Put them anywhere the appliance cord will reach and not interfere with the dryer venting.
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Old 03-25-2012, 09:30 AM   #5
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Need advice on installing 240v and 120v circuits for dryer/washer


If you were to stack the receptacles, I would make the dryer lower than the washer. Also consider the length of the cords when roughing in the locations.
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Answers based on the National Electrical Code. Local amendments may apply. Check with your local building officials.
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