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SilentNoise1780
Dec 23, 2011, 09:20 PM
Just bought the RTH7600 to replace my manual thermostat and have a question regarding the wiring.

The line being run up the thermostat contains 6 wires: red, white, green, blue, orange and black

Thermostat (main floor):
Manual thermostat - red and white.
Humidifier control - green and blue.
Not used - orange and black.

Furnace (basement):
R - Red
C - Green
W - White wire and blue wire
Y - (empty)
G - Black

Since the orange is free on both ends, it's easy enough to make that why if needed.
As far as the green goes though, would I want to chain it from the humidifier control?

My system is a heat with fan (no A/C)

SilentNoise1780
Dec 23, 2011, 09:30 PM
Not sure why I spelled out "why" instead of Y when talking about hooking the orange up to those connections. Haha