Question about Heating & Cooling
Red wire goes to Rc with a jumper wire to Rh
White wire goes to W
Green wire goes to G
Yellow wire goes to Y
Posted on Jul 28, 2010
Depends if you have a heat pump or just a straight air condenser with heat strips as your only heat source. If heat pump you would need atleast 5 wires red to r green to g white to w yellow to y and orange to o/b for heat pump. If o and b are sperate you ha e to determine if reversing valve is energized in cool mode or heat(usually cool) so it'd be o. Alot of thermostat have one terminal labeled o/b and you input when energized in programming of tstat. But if just a straight air with heat strips red is r yellow is y g is green w is white and c is common the only reason you would want this hooked up at tstat is if you have a battery powered thermostat this gives the thermostat power so batteries are not necessary other than that don't worry with c you can change batteries. To determine if reversing valbe is energized in heat or cool for heat pumps just try one and put in cool.mode if unit blows heat then swap it
Posted on Oct 29, 2016
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Posted on Jan 02, 2017
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