Honeywell Chronotherm iii to Nest Learning - wiring help

BobE — Mon, 04 Sep 2023 13:34:20 GMT

Hi, just purchased Nest Learning Thermostat. The wires are not matching up to the Nest and wondering if there is anyone who can advise? Here's a pic of existing....Honeywell Chronotherm III

Re: Honeywell Chronotherm iii to Nest Learning - wiring help

zoeuvre — Thu, 07 Sep 2023 17:08:30 GMT

Hi BobE,

Thanks for posting here in the Community forum and for showing interest in our Nest Thermostats. Your thermostat wires should be wired to the Nest Learning Thermostat base as follows:

O wire to OB
W wire to W1
G wire to G
R wire to RH
B wire to C
Y wire to Y1

Also, here's a guide for the installation and setup of a Nest Learning Thermostat.

Let us know if you have any other questions. We're happy to help.

Best,

Zoe

topic Honeywell Chronotherm iii to Nest Learning - wiring help in Nest Thermostats

Honeywell Chronotherm iii to Nest Learning - wiring help

Re: Honeywell Chronotherm iii to Nest Learning - wiring help