Standard Thermostat Wiring Colors. It is the most common way to install thermostats that only work with batteries or digital thermostats that control the temperature. Some exceptions to this rule.
Turn off the main power to your system at the breaker box. Don’t work on your thermostat wiring if you feel unqualified. Web a thermostat is a controlling hub for devices like air conditioners and furnaces where temperature regulation is extremely important.
But not all systems with a 2 stage furnace have ac. These are used in case your primary. C wire adapters are available here.
Web if you have a c wire, place it into the c terminal on your wall plate. Some exceptions to this rule. Web in most cases, the wire color on a thermostat corresponds with the letter on a terminal such as red for power (for turning on the power source), yellow for cooling, white for heating and green for the g terminal (for the fan).
If two or more wires are the same color, you won’t be able to tell them apart at the other end. Web pull the wires through the opening of the thermostat’s backplate. It is the most common way to install thermostats that only work with batteries or digital thermostats that control the temperature.
Your hvac system and thermostat configuration will determine what color the c wire will be. Therefore, two stage furnace thermostats require 5, 7 or 8. 2 wire thermostat is used in furnaces.
Check to make sure the thermostat is secure. Attach the back plate to the wall with the provided screws. The efficiency of the thermostat will determine the performance of heating and cooling devices.
