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