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Furnace branch circuit #96896
01/04/06 08:33 PM
01/04/06 08:33 PM
M
Micmann  Offline OP
Member
Joined: Apr 2005
Posts: 20
I’m wiring some heating equipment in a commercial building. They are two small gas hot air furnaces with A/C coils. The only draw about 2 amps each and then a little more with condensate pumps. Does 422.12 mean I can share a branch circuit for both or that they each need their own branch circuit?

Thanks

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Re: Furnace branch circuit #96897
01/04/06 08:57 PM
01/04/06 08:57 PM
S
ShockMe77  Offline
Member
Joined: Jun 2005
Posts: 821
Rahway, New Jersey
Exception #2 in that article says to me that it is permissable to do it that way. But why leave it to chance? If it were me I would run (2) 15 amp dedicated branch circuits, one to each unit so if one stops working -- 20 years from now -- the other one will be working, and the customer won't be left without at least some heat, or A/C.

[This message has been edited by ShockMe77 (edited 01-04-2006).]

Re: Furnace branch circuit #96898
01/04/06 10:19 PM
01/04/06 10:19 PM
D
DougW  Offline
Member
Joined: Jun 2003
Posts: 1,143
North Chicago, IL
Or at least ensure that there are two separate disconnects, so you can "drop" one for service and not freeze the occupancy.

Re: Furnace branch circuit #96899
01/04/06 10:53 PM
01/04/06 10:53 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,198
Estero,Fl,usa
I agree with Doug. I don't see a problem sharing the circuit but they should have separate disconnects.


Greg Fretwell

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