T Stat Wire Colors

If in the previous step you identified an o b or o b wire that s connecting to the o b terminal and have a separate w wire place this wire into the w2 terminal.

T stat wire colors.

Not used on the 3m 22. In most thermostat wiring hookups the red wire is the power source for the system. This could happen if the wires are swapped on both ends or if there s a spice in the wire. Furnace thermostat wiring diagram terminal letters on a thermostat and what they control the hot wire 24 volts usually red from the transformer is the main power wire to turn on or off a furnace components.

Or r or vr. Locate any unconnected wire labeled w or w1. Item 244462 model 64169644. If you have a heat pump system place it into the o b terminal.

The white wire connects to your heat. White the white wire is what connects to the auxiliary heat on your system. Blue to y green to g red to rh and white to w. Southwire 250 ft 18 5 thermostat wire by the roll.

Rc power for cool rh not connected to rc jumper clip removed rh. For example if the red wire is connected to w on the thermostat the furnace should turn on. Green the green wire connects to the fan. If you don t know your system type place this wire into the w terminal.

Orange this wire connects to your heat pump if you have one. But i don t see a wire going directly to the c wire. The thermostat wire is color coded so the technician can identity which wire goes to which port on each board. Here is the industry standard thermostat wire color code used for most systems.

My old thermostat old mercury honeywell has the following wires. Or v or vr. The rh wire connects to the heating system. Rh power for heat rh not connected to rc jumper clip removed or 4.

Thermostat schematic wire colors. So i guess i don t have a real c wire. While there isn t an official standard for thermostat circuit wiring colors there is a general pattern. Rh and rc single power for heat and cool.

The green wire connects to the fan. 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 only have 4 wires they are typically red yellow green black. This wire connects to your heat pump if applicable.

It also has a bridge from rh to rc another bridge from rc to c and yet another from a second c terminal to the y. The yellow wire connects to your compressor. Furthermore for the thermostat wiring colors code for this terminal if equipped consult with the installer. Your best bet is to see the manufacturer s documentation both thermostat and hvac.

Yellow the yellow wire connects to your compressor.