Heater Thermostat Wiring Color Code

Understanding thermostat wiring colors is the next step.

Heater thermostat wiring color code.

Hvac systems with more functions need more wires to communicate to and from the thermostat. Each wire connects to a different terminal and is responsible for a different function. Color codes for 24v thermostat wires are divided into two groups. Color of wire and termination.

Tuned the targeting for 4 wire thermostat wiring color code removed ad code and added tags. Lack of standards makes this interesting. R the r terminal is the power. There are a variety of thermostat wire types.

To install a new thermostat or repair an existing device you ll need to understand the different colors of wires. From the looks of your wiring and if they went by the normal wire color code of how heat pump wires should be wired then you should be able to get your thermostat wired correctly. Thermostat signals and color code. Thermostat wiring and wire color chart thermostat wiring colors 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. Your best bet is to see the manufacturer s documentation both thermostat and hvac. The 5 strands of wire provide enough functions for the modern. The yellow wire connects to your.

The thermostat controls gas heater and separate a c unit so i believe c is wired at the fan relay. G and w which are connected to r rc g and w on the thermostat. The most common is 18 5 5 strand 18 gauge. The main difference setting each apart is the number of colored wires.

Here is the industry standard thermostat wire color code used for most systems. Tuned the targeting for honeywell thermostat wiring color code deleted ad scripts added more related posts links and added tags. Types of thermostat wire. While there isn t an official standard for thermostat circuit wiring colors there is a general pattern.

Below is an industry standard thermostat wire color code complete with each wire s function. References for 4 wire thermostat wiring color code. 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.