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TS replacement
I'm trying to replace the slide TS with a digital. However the wiring is a bit different. The new TS shows 4 wires and my old one has 6. The colors match up until you get to the gray wire which.
The TS bar shows Blue, "O", Green,Yellow, white, Not used, Red, RC.
Honeywell says they don't go by wire color but function. Their functions are Red 24 volt power, Yellow Compressor, G fan, o/b is for reversing valve, C is common 24 volts, W is heat for furnace
Anyone have an idea is I should hook up the Blue then hope the "O" is gray?
The unit is an Airxcel 48000, TS is Honeywell RTH2300/RTH221
I thought this would be easy.
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