Wiring A Furnace Thermostat. Once you know what type of system you have, the hardest part is out of the way. In many electrical systems, the universal color of this power wire is red.
Goodman Furnace thermostat Wiring Diagram Free Wiring Diagram from ricardolevinsmorales.com
Since furnaces only use two wires for power and operation, smart controls cannot. Follow the thermostat wiring guide: The power wire (r/red wire) every thermostat will have this red wire, as it is essentially a 24v ac power wire that connects from the furnace control board to the thermostat.
Web If This Is True And The Thermostat Wires Follow The Standard Color Code, You'll Have A Red, Green, White, And Yellow Or Blue Wire.
Follow the thermostat wiring guide: But for all its mystery, the thermostat is actually a very simple device. Since furnaces only use two wires for power and operation, smart controls cannot.
It's The Main Control Point That Determines When And How Much Heat Will Be Delivered By The Furnace.
3 locate the common wire. Web line voltage (120v/240v) image source: Take heed to any special directions given for your particular model.
The Wiring From The Air Handler To The Thermostat Should Be Done As Follows.
Most of the process is about following safety procedures and avoiding common mistakes. Web the wires on the furnace are red = power, white = heating, yellow = cooling, and green = fan. The two 24 volt wires go to the r terminal and c terminal inside the thermostat.
The Transformer Steps Down 120 Volts To The 24 Volts The Thermostat Needs, And Sends Out The 24 Volts On Two Wires.
Carefully connect each wire correctly from the furnace to the terminals on the thermostat. Web starting on the upper right side of the diagram above: Web in this hvac installation training video, i show how to wire the low voltage thermostat wires into a furnace and ac unit.
Jbj Supply Line Voltage (120V Or 240V) Thermostats Are Typically Used With Electric Heaters Like Baseboards And Wall Vents That Can Be Seen In Older Homes, Condos, And City Apartments.
These wires are responsible for switching the changeover valve in a heat pump system. Once you know what type of system you have, the hardest part is out of the way. Then, connect the power wires to the new furnace.
