Color codes for 24v thermostat wires are divided into two groups. 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. 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. The white wire connects to your heat. However your connections may seem a little different on the thermostat itself. My paperback and e book. The green wire connects to the fan. R the r terminal is the power. Color of wire and termination. Ground green or green with yellow stripes.
This wire may be red without an h attached in some cases. Red or rc wires. 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 g green wire controls fan on auto the diagram shows how the wiring works. Some thermostat units have a dedicated r terminal and it. However your connections may seem a little different on the thermostat itself. The red wire or 24 vac power lead is connected straight to the rc 4 terminals. The thermostat wire is color coded so the technician can identity which wire goes to which port on each board. Brazil follows the wiring color codes by the brazilian association of technical standards or associação brasileira de normas técnicas abnt. The green wire connects to the fan. Thermostat wire color code guide.
Industry standard for geothermal heat pumps. Color of wire and termination. Just take a look at the picture below the diagram. This could happen if the wires are swapped on both ends or if there s a spice in the wire somewhere that was not matched up to the correct color. These colors are used as follows. Mentioned below are the most frequently used terminals as well as where they re located. Blue or c wires. Any color can be used except blue green yellow green with yellow stripes. R the r terminal is the power. The 5 universal base colors for thermostat wires which are in order of frequency of use red white green yellow and black.
The 5 universal base colors for thermostat wires which are in order of frequency of use red white green yellow and black. The green wire connects to the fan. Industry standard for geothermal heat pumps. The red wire or 24 vac power lead is connected straight to the rc 4 terminals. Red or rc wires. The yellow wire connects to your compressor. Brazil follows the wiring color codes by the brazilian association of technical standards or associação brasileira de normas técnicas abnt. Thermostat wire color code guide. Color codes for 24v thermostat wires are divided into two groups. Here is the industry standard thermostat wire color code used for most systems.
This wire may be red without an h attached in some cases. Blue or c wires. These colors are used as follows. 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 g green wire controls fan on auto the diagram shows how the wiring works. Any color can be used except blue green yellow green with yellow stripes. The yellow wire connects to your compressor. Ground green or green with yellow stripes. R the r terminal is the power. Lastly if you have a package unit then the. The rh wire connects to the heating system.
