Thermostat Wiring Diagram Color

It is better to take a good up close photo of the old thermostat and what terminals the colored wiring are terminated.

Thermostat wiring diagram color. Before start wiring any thermostat the installing person should be aware of the type of thermostat to ensure whether installing and wiring it without a technician s services is a wise idea or not. Plus i m anything but a technician so what i have detailed below is here purely as a guideline. Top 12 problems when wiring a thermostat. Basic thermostat wiring colors air conditioner systems always remember when changing a thermostat for a new thermostat to take a photo of the colors and where they go on the old thermostat or get a pencil and paper and write it down.

The basic heat a c system thermostat typically utilizes only 5 terminals. 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. R the r terminal is the power. 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.

Color code how it works diagram. The thermostat wiring color code guide. Ac fan compressor not working how to test repair broken hvac run start capacitor air condition hd duration. Thermostat wiring color code.

Find out if your home is compatible with a honeywell home thermostat. A heat pump system on the other hand has eight or more different thermostat wires. Typically a furnace plus a c hvac system has four or five thermostat wires and a common wire. Use our helpful tool to take an assessment of the existing wiring in your home.

It s important to note that in some cases the color of the wire does not necessarily mean it connects to that came color one the board. If you are wiring an hvac system or an air conditioner wiring system would be different from the wiring of the thermostat of a heat pump system. The diagram below shows how a basic 4 wire thermostat is connected as indicated by the color code chart above. Rc red wire power 24 vac.

Color of wire and termination. Richard lloyd 2 653 109 views. Well explained tutorial on wire color codes. Thermostat wiring to a furnace and ac unit.

The thermostat wire is color coded so the technician can identity which wire goes to which port on each board.