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Posted by Josh on September 16, 2009, 3:34 pm
My house doesn't have a Garbage Disposal (nor do I foresee wanting
one) but since I'm replacing drywall behind the kitchen sink and
adding another outlet over the countertop, I want to run the wires for
a GD while I'm in there. It might make the house more desirable if I
ever decide to sell. I'm thinking of having a double switch box to
the right of the sink, with one switch for a small flourescent light
mounted over the sink and the other switch for the GD.
Here's my questions:
1. Are GD's usually hardwired straight from the switch near the sink,
or do they plug into an outlet under the sink which is switched on and
off by the GD switch above?
2. Does the wiring code allow an outlet to be mounted under the sink,
in close proximity to the hot and cold water inlets? If so, does it
have to be GFCI? If outlets are permitted under the sink, is it best
to install them high (above the water inlets) or down low?
If outlets aren't allowed under the sink, I plan on installing a
junction box under the sink (again: high or low?) and running the
wires from the GD switch down to the JB, putting wire nuts on the ends
of the wire, and a cover on the JB. If the next owner is someone who
can't live without a GD, at least the wiring will be there already.
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Posted by Colbyt on September 16, 2009, 3:59 pm
show/hide quoted text
> My house doesn't have a Garbage Disposal (nor do I foresee wanting
> one) but since I'm replacing drywall behind the kitchen sink and
> adding another outlet over the countertop, I want to run the wires for
> a GD while I'm in there. It might make the house more desirable if I
> ever decide to sell. I'm thinking of having a double switch box to
> the right of the sink, with one switch for a small flourescent light
> mounted over the sink and the other switch for the GD.
> Here's my questions:
> 1. Are GD's usually hardwired straight from the switch near the sink,
> or do they plug into an outlet under the sink which is switched on and
> off by the GD switch above?
> 2. Does the wiring code allow an outlet to be mounted under the sink,
> in close proximity to the hot and cold water inlets? If so, does it
> have to be GFCI? If outlets are permitted under the sink, is it best
> to install them high (above the water inlets) or down low?
> If outlets aren't allowed under the sink, I plan on installing a
> junction box under the sink (again: high or low?) and running the
> wires from the GD switch down to the JB, putting wire nuts on the ends
> of the wire, and a cover on the JB. If the next owner is someone who
> can't live without a GD, at least the wiring will be there already.
I don't know if current code makes a specification. Non GFIC outlets were
allowed under the sink. Best to use an adjustable box so that it will flush
out to the cabinet back. If just using a sink front a regular box is fine. I
like to put them above pan height so somewhere around 20-24" off the floor
to the bottom of the box..
They can be hard wired or plug in and it should be a dedicated 20 amp
circuit.
I prefer plug in because that provides an absolute disconnect at the point
of service. Often 12/3 wg will be pulled and the dishwasher gets one leg of
a split duplex and the garbage gets the other. Just be sure to get both
breakers on the same leg so there is no potential for 220 in the box.
--
Colbyt
Please come visit www.househomerepair.com
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Posted by N8N on September 16, 2009, 4:04 pm
show/hide quoted text
> > My house doesn't have a Garbage Disposal (nor do I foresee wanting
> > one) but since I'm replacing drywall behind the kitchen sink and
> > adding another outlet over the countertop, I want to run the wires for
> > a GD while I'm in there. =A0It might make the house more desirable if I
> > ever decide to sell. =A0I'm thinking of having a double switch box to
> > the right of the sink, with one switch for a small flourescent light
> > mounted over the sink and the other switch for the GD.
> > Here's my questions:
> > 1. =A0Are GD's usually hardwired straight from the switch near the sink=
> > or do they plug into an outlet under the sink which is switched on and
> > off by the GD switch above?
> > 2. =A0Does the wiring code allow an outlet to be mounted under the sink=
> > in close proximity to the hot and cold water inlets? =A0If so, does it
> > have to be GFCI? If outlets are permitted under the sink, is it best
> > to install them high (above the water inlets) or down low?
> > If outlets aren't allowed under the sink, I plan on installing a
> > junction box under the sink (again: high or low?) and running the
> > wires from the GD switch down to the JB, putting wire nuts on the ends
> > of the wire, and a cover on the JB. =A0If the next owner is someone who
> > can't live without a GD, at least the wiring will be there already.
> I don't know if current code makes a specification. Non GFIC outlets were
> allowed under the sink. Best to use an adjustable box so that it will flu=
> out to the cabinet back. If just using a sink front a regular box is fine=
. I
show/hide quoted text
> like to put them above pan height so somewhere around 20-24" off the floo=
> to the bottom of the box..
> =A0 They can be hard wired or plug in and it should be a dedicated 20 amp
> circuit.
> I prefer plug in because that provides an absolute disconnect at the poin=
> of service. Often 12/3 wg will be pulled and the dishwasher gets one leg =
> a split duplex and the garbage gets the other. =A0Just be sure to get bot=
> breakers on the same leg so there is no potential for 220 in the box.
> --
> Colbyt
> Please come visit =A0www.househomerepair.com
My understanding was that if you did it that way you HAD to use
opposite legs (aka Edison circuit,) otherwise you have the potential
for the neutral to be carrying 2x the rated amperage...? Also you
need to use breakers with the handles tied together.
nate
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Posted by RBM on September 16, 2009, 4:19 pm
show/hide quoted text
> > My house doesn't have a Garbage Disposal (nor do I foresee wanting
> > one) but since I'm replacing drywall behind the kitchen sink and
> > adding another outlet over the countertop, I want to run the wires for
> > a GD while I'm in there. It might make the house more desirable if I
> > ever decide to sell. I'm thinking of having a double switch box to
> > the right of the sink, with one switch for a small flourescent light
> > mounted over the sink and the other switch for the GD.
> > Here's my questions:
> > 1. Are GD's usually hardwired straight from the switch near the sink,
> > or do they plug into an outlet under the sink which is switched on and
> > off by the GD switch above?
> > 2. Does the wiring code allow an outlet to be mounted under the sink,
> > in close proximity to the hot and cold water inlets? If so, does it
> > have to be GFCI? If outlets are permitted under the sink, is it best
> > to install them high (above the water inlets) or down low?
> > If outlets aren't allowed under the sink, I plan on installing a
> > junction box under the sink (again: high or low?) and running the
> > wires from the GD switch down to the JB, putting wire nuts on the ends
> > of the wire, and a cover on the JB. If the next owner is someone who
> > can't live without a GD, at least the wiring will be there already.
> I don't know if current code makes a specification. Non GFIC outlets were
> allowed under the sink. Best to use an adjustable box so that it will
> flush
> out to the cabinet back. If just using a sink front a regular box is fine.
> I
> like to put them above pan height so somewhere around 20-24" off the floor
> to the bottom of the box..
> They can be hard wired or plug in and it should be a dedicated 20 amp
> circuit.
> I prefer plug in because that provides an absolute disconnect at the point
> of service. Often 12/3 wg will be pulled and the dishwasher gets one leg
> of
> a split duplex and the garbage gets the other. Just be sure to get both
> breakers on the same leg so there is no potential for 220 in the box.
> --
> Colbyt
> Please come visit www.househomerepair.com
My understanding was that if you did it that way you HAD to use
opposite legs (aka Edison circuit,) otherwise you have the potential
for the neutral to be carrying 2x the rated amperage...? Also you
need to use breakers with the handles tied together.
nate
You are correct. You never wire an Edison circuit with both hot legs on the
same leg
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Posted by Colbyt on September 16, 2009, 4:21 pm
show/hide quoted text
> > My house doesn't have a Garbage Disposal (nor do I foresee wanting
> > one) but since I'm replacing drywall behind the kitchen sink and
> > adding another outlet over the countertop, I want to run the wires for
> > a GD while I'm in there. It might make the house more desirable if I
> > ever decide to sell. I'm thinking of having a double switch box to
> > the right of the sink, with one switch for a small flourescent light
> > mounted over the sink and the other switch for the GD.
> > Here's my questions:
> > 1. Are GD's usually hardwired straight from the switch near the sink,
> > or do they plug into an outlet under the sink which is switched on and
> > off by the GD switch above?
> > 2. Does the wiring code allow an outlet to be mounted under the sink,
> > in close proximity to the hot and cold water inlets? If so, does it
> > have to be GFCI? If outlets are permitted under the sink, is it best
> > to install them high (above the water inlets) or down low?
> > If outlets aren't allowed under the sink, I plan on installing a
> > junction box under the sink (again: high or low?) and running the
> > wires from the GD switch down to the JB, putting wire nuts on the ends
> > of the wire, and a cover on the JB. If the next owner is someone who
> > can't live without a GD, at least the wiring will be there already.
> I don't know if current code makes a specification. Non GFIC outlets were
> allowed under the sink. Best to use an adjustable box so that it will
> flush
> out to the cabinet back. If just using a sink front a regular box is fine.
> I
> like to put them above pan height so somewhere around 20-24" off the floor
> to the bottom of the box..
> They can be hard wired or plug in and it should be a dedicated 20 amp
> circuit.
> I prefer plug in because that provides an absolute disconnect at the point
> of service. Often 12/3 wg will be pulled and the dishwasher gets one leg
> of
> a split duplex and the garbage gets the other. Just be sure to get both
> breakers on the same leg so there is no potential for 220 in the box.
> --
> Colbyt
> Please come visit www.househomerepair.com
My understanding was that if you did it that way you HAD to use
opposite legs (aka Edison circuit,) otherwise you have the potential
for the neutral to be carrying 2x the rated amperage...? Also you
need to use breakers with the handles tied together.
nate
I have never done it that way. And I do agree that you are right about the
Edison circuit.
My son's house is on a split duplex. I will have to take a look at his
panel box and see how it was done.
Colbyt
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> one) but since I'm replacing drywall behind the kitchen sink and
> adding another outlet over the countertop, I want to run the wires for
> a GD while I'm in there. It might make the house more desirable if I
> ever decide to sell. I'm thinking of having a double switch box to
> the right of the sink, with one switch for a small flourescent light
> mounted over the sink and the other switch for the GD.
> Here's my questions:
> 1. Are GD's usually hardwired straight from the switch near the sink,
> or do they plug into an outlet under the sink which is switched on and
> off by the GD switch above?
> 2. Does the wiring code allow an outlet to be mounted under the sink,
> in close proximity to the hot and cold water inlets? If so, does it
> have to be GFCI? If outlets are permitted under the sink, is it best
> to install them high (above the water inlets) or down low?
> If outlets aren't allowed under the sink, I plan on installing a
> junction box under the sink (again: high or low?) and running the
> wires from the GD switch down to the JB, putting wire nuts on the ends
> of the wire, and a cover on the JB. If the next owner is someone who
> can't live without a GD, at least the wiring will be there already.