Dishwasher/Disposal

[geochurchi]

Hi All, can the dishwasher and disposal be on the same circuit?

 

[Dennis Alwon]

Hi All, can the dishwasher and disposal be on the same circuit?

Yes or no depending on the loads. In most cases yes however the manufacturers instructions may not allow it

 

[Hendrix]

Hi All, can the dishwasher and disposal be on the same circuit?

They are fixed appliances so you can only load the circuit to 50% of its rating.

 

[alive wire]

They are fixed appliances so you can only load the circuit to 50% of its rating.

Good morning guys where is that at in the NEC

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[geochurchi]

So that being said about loading the circuit to 50% can a motors for a kick space heater be installed on a DW circuit?

 

[don_resqcapt19]

Good morning guys where is that at in the NEC

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It only sort of says that in the NEC. If both loads are hardwired and there are no other outlets, the code does not say that.

210.23(A)(2)(2) Utilization Equipment Fastened in Place. The total rating of utilization equipment fastened in place, other than luminaires, shall not exceed 50 percent of the branch-circuit ampere rating where lighting units, cord-and-plug-connected utilization equipment not fastened in place, or both, are also supplied.

 

[alive wire]

It only sort of says that in the NEC. If both loads are hardwired and there are no other outlets, the code does not say that.
[/B]

Thank you

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[Ponchik]

210.23(A)(2) does not apply if your circuit is dedicated for fastened in appliances

So, if you install a 20A circuit the rating of each appliances CAN exceed 50% as long as their total rating does not exceed 20A.

You can have a 15A dishwasher and a 5A garbage disposer.

 

[mwm1752]

Just randomly picked a washing machine -- part of install -- no bueno with disposal in this instance.
Circuit
Individual, properly polarized and grounded 15 or 20 amp circuit breaker or time-delay fuse.
NEC 2014 -
Branch Circuit, Individual. A branch circuit that supplies only one utilization equipment.

 

[templdl]

Hi All, can the dishwasher and disposal be on the same circuit?

Is this an existing circuit or is it for a new installation?

 

[mwm1752]

Is this an existing circuit or is it for a new installation?

Should not make a difference when adding or replacing an appliance.

 

[peter d]

Hi All, can the dishwasher and disposal be on the same circuit?

The short answer is yes, although I'm not comfortable combing them on a 15 amp circuit.

 

[templdl]

Should not make a difference when adding or replacing an appliance.

Then it is OK to add an appliance tyo an hour existing circuit?

 

[kwired]

Then it is OK to add an appliance tyo an hour existing circuit?

Only for an hour

 

[goldstar]

I know (mechanically) they're fixed in place but are they still considered (by the NEC) fixed in place if they are cord and plug connected ?

 

[Ponchik]

I know (mechanically) they're fixed in place but are they still considered (by the NEC) fixed in place if they are cord and plug connected ?

I say yes. Because you can't just pick up the appliance and take it to another room, Like a toaster.

 

[RICK NAPIER]

They can only be on the same circuit if the manufacturor does not recommend a dedicated circuit. The only dishwashers I have seen that don't require a dedicated circuit require a 20 amp circuit if it is a shared circuit.

 

[mwm1752]

Then it is OK to add an appliance tyo an hour existing circuit?

??????? Talk about dotting the i & crossing the t :?

 

[mwm1752]

I know (mechanically) they're fixed in place but are they still considered (by the NEC) fixed in place if they are cord and plug connected ?

I've considered if the appliance has a specific place for it to set that helps in determining wheter it is fixed or not --

 

[Ragin Cajun]

My preference is to provide cords on both and plug then into 20A receptacle under the sink fed from 20A breaker.

RC