The Thermostat Wire Color Code You Need to KnowThe green wire underneath your thermostat connects to the fan of your furnace or air handler. It terminates at the air handler or furnace. The green wire connects to terminal G on your thermostat. The Orange Wire. The orange thermostat wire links to your heat pump, if you have one.
Thermostat Wiring Colors Code [Easy HVAC Wire Color Details]Thermostat Wiring and Wire Color Chart – Thermostat Wiring Colors Code; Tstat Terminal Designation: Color of Wire and Termination: R – The R terminal is the power. It is a red wire and comes from the transformer usually located in the air handler for split systems, but you may find the transformer in the condensing unit.
Guide to Thermostat Wiring Color Code: making install ...Types of Thermostat Wire. There are a variety of thermostat wire types. The main difference setting each apart is the number of colored wires. HVAC systems with more functions need more wires to communicate to and from the thermostat. The most common is 18/5 (5 strand, 18 gauge). The 5 strands of wire provide enough functions for the modern ...
Thermostat Wire Color Codes and conventionsColor codes for 24V thermostat wires are divided into two groups: - we give a summary tables of both traditional and current thermostat wire color code keys above The 5 universal base colors for thermostat wires which are, in order of frequency of use, red, white, green, yellow, and black.
Thermostat Wiring Colors & Terminals Explained ...It enables the thermostat to control the air conditioning unit. G Terminal. When you’re looking at your thermostat wire colors, you’ll notice a green wire connected from the fan. This wire is responsible for triggering the blower fan. C Terminal. The common wire links to the C terminal. This particular wire extends from the transformer and is responsible for completing the 24 V power circuit in the thermostat.