My home has a Carrier (non-Infinity) 58UVB furnace with a (Infinity) 24ANB6 air conditioner. I understand that this may not be ideal, but i'm trying to make the most of it.
I recently installed an EDGE thermostat and an OAT sensor to control the furnace. It is configured to handle the 2 heating stages. This all works great.
It's going to get warm some day, so now I want to reconnect my A/C control wiring to the furnace control. Right now I have the EDGE thermostat wired to control the two A/C stages, just like it controls the 2 heating stages, and I've removed the ACRDJ jumper on the furnace control.
But, now, looking over things, it appears this won't work, as I don't see how I can control the two cooling stages on my infinity A/C unit, without having an Infinity furnace controller that I can use to connect the magical "ABCD" wiring harness. That sort of annoys me, as I'd think that somehow Carrier would allow me to control my nice Infinity A/C with my $$$ EDGE thermostat. Do they, and I'm just not seeing how?
I am assuming that I'll have to revert to a 3-wire connection between my Infinity A/C and furnace controller, and disable A/C stage control from my EDGE thermostat (replacing the ACRDJ jumper on the furnace control). I would also assume this renders my OAT sensor useless for air conditioning.
Can anyone confirm my suspicions? Or, hopefully, suggest that I have a better option? If I'm really not losing anything from the 3 wire setup anyway, that would also be comforting knowledge.
Pricing isn't allowed