Heating Thermostat Wiring Colors

The most common is 18 5 5 strand 18 gauge.

Heating thermostat wiring colors.

The 5 strands of wire provide enough functions for the modern. There are a variety of thermostat wire types. Below is an industry standard thermostat wire color code complete with each wire s function. So here we show examples of honeywell thermostat wiring color code for these higher wire count t stats.

State of the art hvac systems these days in addition to the original single stage heating provision often include a second stage heater as well as one or two stages of cooling central ac. The main difference setting each apart is the number of colored wires. Types of thermostat wire. The yellow wire connects to your.

It terminates at your air handler or furnace. To install your unit you ll need to connect the correct wires to the terminals on the back of your new thermostat. The white wire underneath your thermostat connects to your heating system. Trade model thermostats are required to operate dual fuel systems systems that use a heat pump for the first 1 or 2 stages of heating and use a gas or oil furnace for backup emergency heating.

R the r terminal is the power. My paperback and e book. Keep the following list handy whenever you decide to peak behind your thermostat. Here is the industry standard thermostat wire color code used for most systems.

Thermostat wiring and wire color chart thermostat wiring colors code. If you have a dual fuel system or are unsure it is recommended that you contact a professional hvac contractor to continue. Understanding thermostat wiring colors is the next step. Hvac systems with more functions need more wires to communicate to and from the thermostat.

The white wire connects to your heat. What i would like you to know is the information detailed below is based on the industry standard yet not all thermostats will work this way simply because letters and numbers are used as well as color. Thermostat wiring tips color codes thermostat wire installation tips and wier color decoder tips on thermostat wiring color code conventions old timer tips on shorting out thermostat wires on purpose to identify which wire is which shorting out thermostat wires leads to loss of heat this article describes several tricks of the trade used by professionals when installing room.