Thermostat Color Code Wire . Color of wire and termination. Failure to properly link these can lead to failures in the system including short circuits which can lead to fires.
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Blue or c wires. Color codes for 24v thermostat wires are divided into two groups. My paperback and e book.
These colors are used as follows.
Color of wire and termination. My paperback and e book. Blue or c wires. R the r terminal is the power.
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Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac w white wire for heating enable y yellow wire for cooling enable.
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Failure to properly link these can lead to failures in the system including short circuits which can lead to fires.
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Blue or c wires.
