I want to switch from Honeywell T6861 thermostat to nest thermostatbut
I don’t understand the wiring letters and how to covert them to Nest
wires letters
Thanks a lot, I found out that there’s companies here in Dubai install
some kind of 24V adapter and some wires to make the 110/220V compatible
with Nest , however they are expensive they charge more than the
thermostat price itself