T Stat Wire Colors

The white wire connects to your heat.

T stat wire colors.

Or v or vr. The rh wire connects to the heating system. 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. For example if the red wire is connected to w on the thermostat the furnace should turn on.

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. Thermostat schematic wire colors. 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.

White the white wire is what connects to the auxiliary heat on your system. Locate any unconnected wire labeled w or w1. If you don t know your system type place this wire into the w terminal. Not used on the 3m 22.

Rc power for cool rh not connected to rc jumper clip removed rh. Rh power for heat rh not connected to rc jumper clip removed or 4. Your best bet is to see the manufacturer s documentation both thermostat and hvac. T outdoor temperature sensor.

Furthermore for the thermostat wiring colors code for this terminal if equipped consult with the installer. My old thermostat old mercury honeywell has the following wires. The green wire connects to the fan. Green the green wire connects to the fan.

Here is the industry standard thermostat wire color code used for most systems. Yellow the yellow wire connects to your compressor. Blue to y green to g red to rh and white to w. This could happen if the wires are swapped on both ends or if there s a spice in the wire.

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. The rc wire connects to the cooling system. If you have a heat pump system place it into the o b terminal. Item 244462 model 64169644.

The thermostat wire is color coded so the technician can identity which wire goes to which port on each board. The yellow wire connects to your compressor. Southwire 250 ft 18 5 thermostat wire by the roll. In most thermostat wiring hookups the red wire is the power source for the system.

Or r or vr. This wire connects to your heat pump if applicable. Rh and rc single power for heat and cool. If you only have 4 wires they are typically red yellow green black.

The most common color i ve seen used for this terminal and wire designation is light blue but this varies and is entirely up to the installer what color to use.