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Old 07-06-2009, 08:46 AM   #1
dwp
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Adding new dishwasher


I have recently moved our dryer from the kitchen to a location closer the washer. I want to add a dishwasher where the dryer was. The dryer used 12/3 (I think) wire connected to a 30A breaker, but I only need a 20A breaker for the dishwasher. Can I use the 12/3 for the dishwasher and just cap off the red wire and then connect it to the new 20A breaker?

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Old 07-06-2009, 12:00 PM   #2
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Adding new dishwasher


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Originally Posted by dwp View Post
I have recently moved our dryer from the kitchen to a location closer the washer. I want to add a dishwasher where the dryer was. The dryer used 12/3 (I think) wire connected to a 30A breaker, but I only need a 20A breaker for the dishwasher. Can I use the 12/3 for the dishwasher and just cap off the red wire and then connect it to the new 20A breaker?
The wire size for your dryer should be #10. Or, 10/3 on a 30 amp breaker. The dryer operates on 240 volts and the DW runs on 120 volts.
So you have to change the breaker in the panel to a 20 amp single pole breaker. Land the white on the neutral bus, abandon either the black or red, connect the ground to the ground bus bar and connect the remaining black or red to the single pole breaker. This should all be done already except for the extra wire you do not need. Just cap it off. The
DW unless provided with a cord and plug, requires a disconnect.
See if you can get a listed cord and plug that is for the DW. That way you can just install a receptacle and be done with it.
If you cannot get a listed cord and plug, you need the disconnect, and hard wire from there. It's okay to use #10 wire on a 20 amp circuit. Hope that helps.

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Old 07-07-2009, 10:47 AM   #3
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Adding new dishwasher


Thanks - that's just what I was looking for!
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