Honeywell 4 Wire Thermostat Wiring Diagram. References for how to wire a honeywell thermostat with 4 wires. Next let s talk about the c or common wire.
Let s take a look at the g wire. But here is a list of the most common wire color mappings as seen in many four wire t stat setups. Honeywell thermostat wiring instructions from diy house help.
Understanding where the wires go and what they do help you.
Thanks for the email ed and i m glad to help. If you have a trane model thermostat and have a wire labeled x or b refer to your thermostat manual. Thanks for the email ed and i m glad to help. October 18 2018 by larry a.