Ideal 4 Wire Thermostat Diagram

The diagram below shows how a basic 4 wire thermostat is connected as indicated by the color code chart above.

4 wire thermostat diagram. How to replace a 4 wire thermostat. We have both a natural gas furnace and an ac unit. So 4 4 and 5 5 when dealing with the wire setup.

Installing the wrong thermostat type always install a thermostat to its compatible base. Of course though you should check that the wires in your hvac system match up with their expected functions. These thermostats have 4 wires described as below.

White wire for heat. 4 wire thermostat wiring diagram what is a wiring diagram. Green wire for the fan.

There are only four wires going into the existing thermostat red green blue white. The basic heat a c system thermostat typically utilizes only 5 terminals. This shows where to hook them up in a typical heat cool setup.

Rc red wire power 24 vac rh or 4 red wire jumpered power 24 vac w white wire for heating enable y yellow wire for cooling enable. Commonly used green white yellow and red thermostat wires. We have a 19 year old condo with an old carrier mercury thermostat.

Variety of 4 wire thermostat wiring diagram. Basic thermostat wiring for furnace and air conditioner. A wiring diagram is an easy visual representation with the physical connections and physical layout associated with an electrical system or circuit.