Heater Thermostat Wiring Color Code

To install your unit you ll need to connect the correct wires to the terminals on the back of your new thermostat.

Heater thermostat wiring color code.

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. G and w which are connected to r rc g and w on the thermostat. Lack of standards makes this interesting. Below is an industry standard thermostat wire color code complete with each wire s function.

References for 4 wire thermostat wiring color code. Hvac systems with more functions need more wires to communicate to and from the thermostat. R the r terminal is the power. The thermostat controls gas heater and separate a c unit so i believe c is wired at the fan relay.

Understanding thermostat wiring colors is the next step. Tuned the targeting for 4 wire thermostat wiring color code removed ad code and added tags. Types of thermostat wire. Color codes for 24v thermostat wires are divided into two groups.

Here is the industry standard thermostat wire color code used for most systems. Thermostat signals and 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. The 5 strands of wire provide enough functions for the modern.

While there isn t an official standard for thermostat circuit wiring colors there is a general pattern. 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. 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.

The most common is 18 5 5 strand 18 gauge. Your best bet is to see the manufacturer s documentation both thermostat and hvac. Color of wire and termination. Thermostat wiring and wire color chart thermostat wiring colors code.

Tuned the targeting for honeywell thermostat wiring color code deleted ad scripts added more related posts links and added tags. Each wire connects to a different terminal and is responsible for a different function. How to wire a thermostat. The yellow wire connects to your.