I have a Honeywell T874R1152 thermostat and need to know what my B wire controls. I have Y, G, OB, W2, E, R, B. I know it is not a C, I don't have a C on my control board

Asked by Amanda on 06/26/2013 0  Answer

ManualsOnline posted an answer 11 years, 3 months ago

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