Baird Hvac Thermostat Wiring. See the diagram below for what each wire controls on your system. WA2 WL2 WA2D 9 EER.
A large majority of homes today have an HVAC system containing a Furnace Oil Gas or Electric and An AC Unit. See the diagram below for what each wire controls on your system. 4104 Series CT Series.
4106 Series EH_GVGSVS Heaters.
How to wire a thermostat. If it has a C-wire the other end of the wire should be in the wall and you can use it for your new smart thermostat. 4104 Series CT Series. Green The green wire connects to the fan.