2 furnaces wired together - http://www.hvacmechanic.com/ Forums
Original message
| sfmechanic | "2 furnaces wired together" , posted Sat 10 May 23:05  
how does a person go about wiring two furnaces with ac together, they are both propane feed. any answers and iam sure its simple, just want to be cautious.. thanks
greenhands
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| sfmechanic | "Re(1):2 furnaces wired together" , posted Mon 12 May 01:26  
great i will ask for the kit what exactly does it do i would assume it just connects the two so you can run off one t-stat, its in a new house the power is not on.
greenhands
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| | Houston204 
| "Re(2):2 furnaces wired together" , posted Mon 12 May 22:43  
Been a while since I've installed one, but it has a relay that wires to W and R (and possibly G) of the second furnace so that it is isolated from the first furnace but able to be controlled by a single stat. It also has a second door switch for your second furnace that breaks Furn 1 when Furn 2 panel is removed.
I don't do much residential installs anymore except for highrises. If I condemn it someone else puts it in. Seventeen years at the same company has its priviledges. Now if only I could pick up a second weeks vacation.
"Tip of the Day" Remember to remove power first.
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| Houston204 
| "Re(1):2 furnaces wired together" , posted Sun 11 May 02:18  
Carrier sells a twinning kit.
"Tip of the Day" Remember to remove power first.
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