Heater Thermostat Wiring Color Code

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.

Heater thermostat wiring color code. The thermostat wiring color code guide from wi fi thermostat reviews. The 5 strands of wire provide enough functions for the modern. The white wire connects to your heat. To install your unit you ll need to connect the correct wires to the terminals on the back of your new thermostat.

How to wire a thermostat. The most common is 18 5 5 strand 18 gauge. Understanding thermostat wiring colors is the next step. Tuned the targeting for honeywell thermostat wiring color code deleted ad scripts added more related posts links and added tags.

The thermostat controls gas heater and separate a c unit so i believe c is wired at the fan relay. The yellow wire connects to your. Tuned the targeting for 4 wire thermostat wiring color code removed ad code and added tags. Color codes for 24v thermostat wires are divided into two groups.

G and w which are connected to r rc g and w on the thermostat. Each wire connects to a different terminal and is responsible for a different function. There are a variety of thermostat wire types. While there isn t an official standard for thermostat circuit wiring colors there is a general pattern.

Here is the industry standard thermostat wire color code used for most systems. References for 4 wire thermostat wiring color code. 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. Lack of standards makes this interesting.

Thermostat wiring and wire color chart thermostat wiring colors code. Types of thermostat wire. To install a new thermostat or repair an existing device you ll need to understand the different colors of wires. Thermostat signals and color code.

Your best bet is to see the manufacturer s documentation both thermostat and hvac. The main difference setting each apart is the number of colored wires. Below is an industry standard thermostat wire color code complete with each wire s function. R the r terminal is the power.