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Replacing a with a rth111. the 4 wires from the wall are
replacing a white rogers with a rth111. the 4 wires from the wall are G,W,Y,B(witch is tan) no red. should I hook the B wire to the RC or RH?… read more
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Certified HVAC Service Technician
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I have bought a Honeywell T Stat....RTH221B.....inst...say
I have bought a Honeywell T Stat....RTH221B.....inst...say DONOT use if u have R,RC,RH, 4 and V wireing? I have .....Green wire to G....Red wire to RC...With Jumper to RH....Yellow to Y....And a BLUE … read more
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I am installing a 44860 thermostat on an old RUUD CA CH system.
I am installing a 44860 thermostat on an old RUUD CA CH system. I have 4 wires on my old thermostat. Wire 1 was white and went to a terminal W. Wire 2 was yellow and went to Y. Wire 3 was red and went… read more
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