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#90937 - 12/18/04 08:23 AM Water Heater Connections
mustangelectric Offline
Member

Registered: 02/08/04
Posts: 496
Loc: Bentonville, AR
Hi,
I used to just stub out a 10/2 w grnd at the water heater and bond the cold water.

What is the best way to do it now?

Do I need to run flex over to the heater itself?

Do I need to bond the hot and cold together back to the panel?

Thanks for any comments.

-regards

Greg
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Electricity has no respect for ignorance!

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#90938 - 12/18/04 08:39 AM Re: Water Heater Connections
gfretwell Offline

Member

Registered: 07/20/04
Posts: 9045
Loc: Estero,Fl,usa
They want to see a disconnect around here and that is usually where the electrician stops, although he still "owns" the wire going to the water heater if there is a violation. I see them run in everything from just Romex to FMC, MC or SealTite.
I haven't seen metal water pipe in so long I tend to forget about bonding
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#90939 - 12/18/04 08:45 AM Re: Water Heater Connections
mustangelectric Offline
Member

Registered: 02/08/04
Posts: 496
Loc: Bentonville, AR
Hi,
yes that is why I am asking because what used to be ok may not be the norm nowadays...I havent heard of a disco being required at the heater itself. This is not a code requirement is it?

I will probably just use my old standard...stub out the 10/2 wgrnd and use a romex connector toconnect it to the heater itself.

See any problem with that?

Most everything around here is Copper.

-regards

Greg
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#90940 - 12/18/04 08:53 AM Re: Water Heater Connections
Tom Offline
Member

Registered: 01/01/01
Posts: 1069
Loc: Shinnston, WV USA
Greg,

A disconnect may be required, depending on where the water heater is located in relationship to the panel that feeds it. A water heater is an appliance, so check out 422.31(B)

Tom
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#90941 - 12/18/04 08:59 AM Re: Water Heater Connections
iwire Offline
Moderator

Registered: 01/05/03
Posts: 4343
Loc: North Attleboro, MA USA
Almost everything we wire needs a disconnecting means within sight.

There are some exceptions and also sometimes ways around it with breaker locks.

As Tom pointed out check out 422.31(B) for water heater.
_________________________
Bob Badger
Construction & Maintenance Electrician
Massachusetts

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#90942 - 12/18/04 09:07 AM Re: Water Heater Connections
mustangelectric Offline
Member

Registered: 02/08/04
Posts: 496
Loc: Bentonville, AR
Hi,
The water heater certainly exceeds the 300w limit. The circuit breaker is NOT within sight but it can be locked in the open position with a breaker lock-out.

Should I just put a non fused disco at all water heaters and forget it? What is the norm anymore?

Thanks for the code ref.

-regards

Greg
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#90943 - 12/18/04 11:24 AM Re: Water Heater Connections
electricman2 Offline
Member

Registered: 11/09/03
Posts: 234
Loc: Thomasville, NC USA
Breaker locks are approved here and are cheaper than a disco.
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John

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#90944 - 12/18/04 05:04 PM Re: Water Heater Connections
Tom Offline
Member

Registered: 01/01/01
Posts: 1069
Loc: Shinnston, WV USA
If I was the AHJ on an inspection for a water heater, I would accept a breaker padlock device manufactured by the same company that made the breaker/panelboard.

Many mobile/manufactured homes have an electric water heater & every one that i have looked at has a padlock attachment on the breaker. This makes HUD happy & so a similar installation in a dwelling should satisfy any AHJ you deal with, but it is always best to ask if you aren't sure.

You could use one of those $8 pull out air conditioner disconnects just to CYA, but IMO, you'd be wasting $8 & some time.

Tom
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