Hot Water Heaters Disconnect Switch
- Thread starter jeffro10
- Start date
- Status
dcspector
Senior Member
- Location
- Burke, Virginia
See 422.31 A lock out on breaker would meet code.
OK, since you're new here, I'll let you in on The Electricians' Biggest Secret: You don't need to heat hot water. :grin:
Anyway, welcome to the forum!
Pierre C Belarge
Senior Member
- Location
- Westchester County, New York
OK, since you're new here, I'll let you in on The Electricians' Biggest Secret: You don't need to heat hot water. :grin:
Anyway, welcome to the forum!
Come to my house and you may not say that.:grin:
- Location
- Logan, Utah
Welcome to the forum.
An electric water heater would be an appliance. Part III of Article 422 gives us the requirements for disconnecting means for appliances.
I agree with dcspector, most likely you can use 422.31(B) and use a breaker lock as the disconnecting means.
Chris
An electric water heater would be an appliance. Part III of Article 422 gives us the requirements for disconnecting means for appliances.
I agree with dcspector, most likely you can use 422.31(B) and use a breaker lock as the disconnecting means.
Chris
- Location
- Massachusetts
Strange my water heater comes on when the water is still hot, I guess you let yours cool off entirely.
We have secrets, hot water doesn't need to be heated, or the OP isn't welcome?
Weird. Mine comes on when the water is luke warm, or tepid.
- Location
- Logan, Utah
Are they specifically prohibiting the use of a breaker lock or are they just stating that a disconnecting means is required?
Chris
Chris
I was traveling around installing the local disconnects until i discovered 422.31.B. What do you do, leave the breaker lock installed permanatly or have the plumber carry them on his truck? Is the purpose of a disconnecting means for the plumber installing the new unit or the homeowner after the plumber leaves?
- Location
- Logan, Utah
You need to leave the provisions for adding the lock on the breaker on the panel. Here is what the last sentence of 422.31(B) states:
My answer is based on the 2008 NEC.
Chris
- Location
- New Jersey
- Occupation
- Journeyman Electrician
A breaker lock is sufficient according to the NEC. New Jersey has no local amendments but they do often have misinterpretation.
They should require a disconnect or a breaker locking device.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
Huh?You agree the interpretations are correct, or that they're not?
I believe that he's agreeing with me that officials here have their fair share of misinterpretations of the code.
- Location
- New Jersey
- Occupation
- Journeyman Electrician
If the plumber is hiring an electrician to install the disconnect I wouldn't complain about not using a breaker lock.
- Status