Dishwasher and garbage disposal
- Thread starter GSXR600
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LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
What you mean is that one 20a circuit could supply both appliances, because the 3-way would prevent simultaneous operation, right?
I've seen the same thing done to supply a clothes dryer from a water-heater circuit. I believe it's compliant, and may have even read it.
I've seen the same thing done to supply a clothes dryer from a water-heater circuit. I believe it's compliant, and may have even read it.
So you are running power to the common terminal first? If so, you cannot have both running at the same time.
I guess I'm con-fused.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
Don't be. I think we're just saying the same thing differently.So you are running power to the common terminal first? If so, you cannot have both running at the same time.
I guess I'm con-fused.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
The confusion was because you meant "supplied" simultaneously, while we meant "energized" simultaneously.
Is it a good idea to turn the dishwasher off and on like that? Maybe some electronically-controlled DWs won't start back up when power is restored. Besides, you're adding another switch to the mix, something that most folks aren't used to.
All I can imagine is Jill Taylor saying "TIIIiiiiim!"......
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
So far, but give us time; the thread is young.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
If hardwired they both require a disconnect of some sort.
Cavie
Senior Member
- Location
- SW Florida
You would have to put both on seperate recepticals so you could unplug the disp when you turned of the dw to work on it. So I don't see the need to put the DW on the 3/w.
Which would cause the DW to get turned off, then right back on. Seems like a noble cause, but not worth the trouble.
Cavie
Senior Member
- Location
- SW Florida
I really can't come up with code violation as long as both had receps for disconect. I also can't come up with a reason to do it that way.
e57
Senior Member
- Location
- San Francisco, CA
No code violation - but it may violate your customers idea of it working correctly....
Insinkerator makes a switch (Commonly called an 'Air switch') it does the same to allow an insta-hot water heater. It switches the power from the water heater to GD then back. However - if you did this with most dishwashers it would shut off, then the GD would start, then when the power went back to the DW - nothing would happen. You would need to re-start it, and possibley at the begining of the cycle...
Insinkerator makes a switch (Commonly called an 'Air switch') it does the same to allow an insta-hot water heater. It switches the power from the water heater to GD then back. However - if you did this with most dishwashers it would shut off, then the GD would start, then when the power went back to the DW - nothing would happen. You would need to re-start it, and possibley at the begining of the cycle...
ok great...it is not wrong per the code but why would you want to do that when wiring a new house with fresh circuits???????????
"uhm, mr home owner, you can run your dishwasher but while you are doing that you can't operater your disposal. oh, by the way that will 4k for me wiring you new house."
if i was the homeowner, i'd tell you that you are smoking crack, you will fix that.
LarryFine
Master Electrician Electric Contractor Richmond VA
- Location
- Henrico County, VA
- Occupation
- Electrical Contractor
It's easy enough when you're told (accurately) what apliances will be installed, and what their electrical requirements are.
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