Thermostatic wiring principles by bob scaringe phd pe. Orange this wire connects to your heat pump if you have one.
8c7 Furnace Blower Wiring Diagram Thermostat Wiring Library
Thermostat wiring diagram. But here is a list of the most common wire color mappings as seen in many four wire t stat setups. Smart thermostats wifi. Red now there can be two separate wires for this. White rodgers shows a slightly different type of wiring diagram that mirrors a ladder logic. Basic thermostat types. Many technicians have great difficulty understanding how to properly wire a thermostat or how to replace a thermostat with a different thermostat.
Thermostat wiring and wire color chart thermostat wiring colors code. 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. R the r terminal is the power. Variety of 4 wire thermostat wiring diagram. 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. A wiring diagram is a streamlined conventional pictorial representation of an electrical circuit.
C 24 vac common you might see blue purple or brown typically used for this wire. By the use of an adjustable set point the job of the thermostat is to turn on either the heating or cooling system to maintain the desired room temperature in the home and to turn off the system when the desired temperature is achieved. The basic heat ac system thermostat typically utilizes only 5 terminals. Color of wire and termination. Heating only thermostat wiring diagrams if you only have a furnace such as a gas. Thermostat wiring diagrams thermostat wiring colors and terminals.
Green the green wire connects to the fan. The thermostat is the control device that provides a simple user interface with the internal workings of your homes climate control system. The table above provides a more complete list of honeywell thermostat wiring colors and their uses. White the white wire is what connects to the auxiliary heat on your system. Yellow the yellow wire connects to your compressor. It reveals the parts of the circuit as streamlined shapes and the power and also signal connections in between the gadgets.
In fact the wiring of a thermostat is quite simple circuitry the confusion arises principally because. Honeywell thermostat wiring diagram 4 wire examples. The diagram below shows how a basic 4 wire thermostat is connected as indicated by the color code chart above.
Gallery of Thermostat Wiring Diagram
