Question about Air Conditioners
Orange = O
Red = R (with existing jumper)
Black = C
Yellow = Y
White =W1 (Or AUG)
Green = blower wire (usually green, double check with schematic)
(Green should not go to the HP.)
Orange to HP
Red to red and to HP
black to blue (or C) and to HP
White to W
Yellow to HP. (It may also go to a "float switch" if installed. but that will just be a safety switch on the drain pan in case the line clogs and it overflows.)
The green is typically used for the blower motor. (furnace only)
The orange is used for the reversing valve. (changes from AC to heat, is located in the HP only)
Blue is typically used for common (or "C") but they may have changed it to black due to a broken wire, or other problems.
The only wires going to the HP should be
Orange should not be going to the furnace at all.
HP wiring should be
Orange to orange or O
Red to R or red
Blue/black to blue or C
Yellow to Y
Posted on Dec 10, 2008
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