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-   -   can I use a 2 wire thermastat on A/S freedom 80 2 stage furance (http://www.diychatroom.com/f17/can-i-use-2-wire-thermastat-s-freedom-80-2-stage-furance-169603/)

bud567 01-20-2013 10:20 AM

can I use a 2 wire thermastat on A/S freedom 80 2 stage furance
 
if so, which two termenals.... I have twin, w2,w1,R,G,B,Y

Doc Holliday 01-20-2013 10:50 AM

I don't believe you can. r is the 24 volts from the furnace to the stat, G is for operation of the fan, w1 would be first stage heat, w2 second stage heat (which I don't think an 80% gas furnace has), Y is for cooling.

sammy37 01-20-2013 11:06 AM

If you dont have a/c, you could just hook one wire to R and the other wire to whichever stage you want to use, w2 or w1. You also need to have a thermostat that doesnt need the C wire, just battery only.

beenthere 01-20-2013 11:07 AM

R and W1. And jumper W1 to W2.

sammy37 01-20-2013 11:16 AM

Quote:

Originally Posted by beenthere (Post 1097761)
R and W1. And jumper W1 to W2.

Why the jumper between the two, to run both stages instead of one?

beenthere 01-20-2013 11:51 AM

Yep, second stage will come on after 10 minutes that way.

bud567 01-20-2013 02:29 PM

Quote:

Originally Posted by bud567 (Post 1097731)
if so, which two termenals.... I have twin, w2,w1,R,G,B,Y

worked great....thank you


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