|
1 members (Scott35),
396
guests, and
21
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
Joined: Apr 2002
Posts: 7,382 Likes: 7
Member
|
Ghost:
"Or you could suggest that they bite the bullet and install a combination swtich/receptacle where the receptacle is tapped off the line side. It saves the cost of running a separate 120V circuit so it might work out to the same installed costs when all is said and done"
I think you do not mean to tap off the AC feeder on the line side! Correct?
John
|
|
|
|
|
Joined: May 2005
Posts: 984 Likes: 1
Member
|
The receptacle is fed from a small (properly fused) transformer that is tapped off the line side of the HVAC feeder. That way you will still have 120V power when you open the local disconnecting means for the main unit.
Ghost307
|
|
|
|
|
Joined: Apr 2002
Posts: 7,382 Likes: 7
Member
|
Ghost:
OK, that's a professional way!
John
|
|
|
|
|
Joined: Feb 2002
Posts: 2,233
OP
Member
|
John,
I will agree that there should be a new recptacle on the existing HVAC. However if you read the code, it just says "Need a receptacle within 25' of unit". So this install would meet the code.
If he adds a new HVAC unit, then I think I can make him add a recpt. but if the HVAC is existing, maybe not under Rehab?
|
|
|
|
|
Joined: Apr 2002
Posts: 7,382 Likes: 7
Member
|
Harold:
1990 NEC was 75'; 93 changed to 25', and to date there is no requirement in the NEC for where the 120 volt originates from.
Using the "Rehab Card" gets them a 75' distance IF the original unit was pre 1993 install, after that 25'.
Getting deeper into this, a existing building being renovated, with no change in volume, installing RTUs today is under the 2005 NEC
Source is still the 'wild card'!
John
|
|
|
|
|
Joined: Feb 2002
Posts: 2,233
OP
Member
|
John,
The plumbing inspector just told me how an*l are we to be discussing this small (minute)( pronounced My-nute) of a problem. I explain to him that the NEC tries to be very specific about it's wording and meaning. Yet we as individuals, have to try and carry out day by day installations and inspections with out going crazy over the small things.
|
|
|
|
|
Joined: Apr 2002
Posts: 7,382 Likes: 7
Member
|
Plumbing inspectors usually have comments similar to that regarding all sparkies!
John
|
|
|
|
|
Joined: Jul 2004
Posts: 9,931 Likes: 34
Member
|
Plumbing inspectors only have 2 violations they can cite, don't they? "Cold water is not on the right" "Poop is not flowing down hill" 
Greg Fretwell
|
|
|
|
|
Joined: May 2005
Posts: 984 Likes: 1
Member
|
Wasn't there a "Three Stooges" clip about them trying to fix the plumbing in a house?
They pulled down a piece of conduit and figured the reason that the water didn't work was because the pipes were all clogged with wires.
Ghost307
|
|
|
|
|
Joined: Feb 2002
Posts: 2,233
OP
Member
|
Greg, You forgot one important fact about plumbers. Don't bite your nails! 
|
|
|
|
Posts: 46
Joined: March 2013
|
|
|
|
