05-04-2023 06:38 AM
I ordered a Google Nest thermostat via UGI and am looking for clarification on wiring. When I first moved in I had a Honeywell dial thermostat which controlled the heating and cooling. It was changed to a digital programmable one which is when I believe a jumper wire was run from the RH to the RC to accomodate that thermostat. The Google Nest new one doesn't have RH and RC, just R. Is it safe to just remove the jumper and wire into the R on the new thermostat? Other wires are fine, W, Y G
05-04-2023 09:43 AM
Thermostats, which have an RH and an Rc are capable of supporting two separate systems, each with its own control transformer. One being a heating system, and the other being a cooling system. For this reason, when you have a standalone combine system, you only need to use one wire for the incoming power. Those old thermostat use a jumper between Rh and Rc to ensure that both the heating and cooling parts of the thermostat were receiving power.
For the nest thermostat it’s all combined in the R for the model you have. You wires will be R, W, Y, G.
AC Cooling Wizard
05-07-2023 10:35 AM
Hi there,
Thanks for reaching out. I hope you get the answer you're looking for. If you have further questions or concerns, please let us know.
I appreciate your help, @CoolingWizard.
Best,
Jenelyn
05-10-2023 10:38 AM
Hi LC0506,
Checking if you still need help. Please let me know, as I'll be willing to assist you further.
Thanks,
Jenelyn
05-11-2023 11:48 AM
Hello there,
I'm just checking in to make sure that you've seen our response. Please let us know if you have any other questions or concerns, as I'll be locking this thread in 24 hours.
Regards,
Jenelyn