How to wire in 24vac auxiliary power for thermostat
I just purchased a Honeywell Vision Pro 8000 and don't want to rely on AAA batteries to keep it running. I have the standard 1H/1C system. I have everything working. Here's the question. The RH is coming from my heater to the RH terminal on the thermostat which is also jumpered to RC (although I have nothing coming from the cooling system to it). I want to install a 24vac power supply to run the thermostat without batteries. I believe I can hook the 24vac common to the "C" terminal on the thermostat, but do I hook the 24vac hot to the RC terminal and remove the jumper between it and RH????. I read somewhere that this will work but you need to unjumper it to keep from messing up the RH circuit on the heating unit's board. Has anyone done this before and is it that simple.
Thanks in advance. I just don't want to screw up the circuit board of my heater that is providing the RH circuit.