Marvelous Four Wire Thermostat Wiring Diagram

The guide covers four and five wire designs so the only thing holding you back is whether the original installation is compatible.

Four wire thermostat wiring diagram. Some have the common c wire while others do not. Yellow the yellow wire connects to your compressor. Typical 4 wire thermostat t stat wiring examples follow.

Both examples of how to wire a honeywell thermostat with 4 wires are discussed below. This is the most common configuration. A few tools found around the house are all that s needed.

Green the green wire connects to the fan. You should never try to force one type of connection over another. Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac.

Wellborn variety of 4 wire thermostat wiring diagram. I show where the wires go at the thermostat the color code then down at the furnace control board. 4 wire thermostat wiring diagram what is a wiring diagram.

Basic thermostat wiring for furnace and air conditioner. There are only four wires going into the existing thermostat red green blue white. The diagram below shows how a basic 4 wire thermostat is connected as indicated by the color code chart above.

How to wire a honeywell thermostat with 4 wires. The procedure to install the new thermostat is straightforward and does not require the assistance of a certified electrician. On the back of the thermostat are a number of labeled contacts only the following have wires connecting them.