Radon exhaust fans

Status
Not open for further replies.
G

geochurchi

Senior Member
Location
Concord,NH
Occupation
Retired electrician
Hi All, is a Radon exhaust fan required to be on a separate circuit,or is that a building code requirement,?
One other question, is flexible SS gas pipe required to be bonded?
:?
 
geochurchi said:
Hi All, is a Radon exhaust fan required to be on a separate circuit,or is that a building code requirement,?
One other question, is flexible SS gas pipe required to be bonded?
:?
Click to expand...
NEC would only require them to be on separate circuit if it draws more then 50% of branch circuit rating. They usually don't draw much and is not an issue, NEC wise.

metallic gas piping needs to be bonded, but can be bonded by the branch circuit EGC that is most likely to energize it. But keep in mind that some (more like nearly all) types of corrugated stainless tubing types of gas pipe may have their own bonding requirements that go beyond what NEC requires, you need to check with that particular product installation instructions.
 
geochurchi said:
Hi Kwire, I found this link which seems to say that the bond wire for the branch circuit is sufficient, unless I am inturperting it wrong.
The one kicker is the no smaller than number 6 conductor size.
Click to expand...
It says the [#6] bonding jumper is required for CSST regardless of any connected electrically-powered equipment.
 
Been down this road before - IMO the CSST installer needs to know how it should be bonded, and bonding it is part of it's installation - us electricians just put in an intersystem bonding termination so they don't have to get inside an electric panel to make connection to the electrical system - that is what an IBT is for. I am about at the point to tell the HVAC guys where they can shove that pipe if they ever ask me to bond it again, I don't want to know the rules for that stuff or take on such liability. I do have a pipe threader, I guess I could offer to install black pipe for them instead just to see what their response is.:)
 
kwired said:
I am about at the point to tell the HVAC guys where they can shove that pipe if they ever ask me to bond it again, I don't want to know the rules for that stuff or take on such liability. I do have a pipe threader, I guess I could offer to install black pipe for them instead just to see what their response is.:)
Click to expand...

based on your response, do you really need to thread that pipe before installing it?
 
The CSST is still causing major hard aches in terms of requirement. There is a certain CSST that apparently does not require bonding however I believe the gas code requires it. Some manufacturers say a #6 copper bond is all that is needed while others say it shall be bonded with the same size conductor as the grounding electrode conductor required for the home. We usually go the latter route to cover our butts.
 
Status
Not open for further replies.
Top