The white wire connects to your heat. Honeywell thermostat wiring color code.
Ac Thermostat Wiring Color Code H1 Wiring Diagram
Honeywell 4 wire thermostat wiring color code. Rv honeywell thermostat upgrade duration. For all other t stat terminals and in fact sometimes even for the above mentioned common color assignments the exact purpose of a wire is often not clear. The yellow wire connects to your. This one uses the green wire as the c wire instead of the g fan wire. Over a long distance the signals can become to weak to get a reading. Heat pump thermostat wire color code duration.
Some have the common c wire while others do not. 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. Understanding thermostat wiring colors is the next step. Youll probably see a thermostat jumper wire connecting the rc and rh terminals. How to wire a honeywell thermostat with 4 wires. Thermostat wiring and wire color chart thermostat wiring colors code.
To install your unit youll need to connect the correct wires to the terminals on the back of your new thermostat. In the installations weve worked with the most common wire color code guide for a four wire t stat are as follows. Thermostat wiring color code decoded. 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. Wall plate for a 4 wire smart thermostat installation. Color codes for 24v thermostat wires are divided into two groups.
R the r terminal is the power. A thermostat wire uses low voltage signals to transfer data. Color of wire and termination. Wire helps transmit data over a longer distance. The wiring for your honeywell thermostat depends on the functions of your heating and cooling system. Both examples of how to wire a honeywell thermostat with 4 wires are discussed below.
Here is the industry standard thermostat wire color code used for most systems. Using a pocket knife trim off 14 of the colored coating to expose the wire. The larger 18 ga. Its there so you can supply power to the heating and cooling switches with a single wire which is usually red.
Gallery of Honeywell 4 Wire Thermostat Wiring Color Code
