We're replacing a MagicStat/32 Honeywell thermostat with a RTH7500D. We have green yellow & white wires going to the new thermostat. On the old thermostat, we have a red wire at RC terminal with bridge going to R. Q: Where do we put red wire on the new thermostat into R terminal or RC terminal & do we leave the bridge in tact?
Yes u leave the bridge intact and just put ur red wire to r or rc and usually they say rh and rc that is for a 2 transformer system which obviously u dont have so leave the wire intact jumped and hook ur red wire up yellow is ur ac wire white is ur heat wire and green is ur fan wire and red is ur 24 volt hot wire all a tstat does is jump that red wire to white for heat green for fan or yellow for ac but make sure ur power to ur unit is off before u change wires or u risk touching wires together and burning up transformer
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