7 Wire Thermostat Color Code. C wires are necessary for any smart thermostat that needs to be connected to a power source 24 7 regardless of your heat pump type. We give a summary tables of both traditional and current thermostat wire color code keys above.
7 wire thermostat wiring diagram t stat wire thermostat wiring color code lovely wire t stat diagram heat pump infinite wireless. The 5 universal base colors for thermostat wires which are in order of frequency of use red white green yellow and black. Depending on how your home s hvac system is set up your thermostat may have various quantities of wires.
Color codes for 24v thermostat wires are divided into two groups.
To connect a 7 wire thermostat learn the color coding pattern for this type of equipment and attach the wires to the appropriate terminals on the unit as marked by a corresponding letter. These colors are used as follows. The main difference setting each apart is the number of colored wires. Hvac systems with more functions need more wires to communicate to and from the thermostat.
