Basic Furnace Wiring Diagram. 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. The diagram provides visual representation of the electric arrangement.
This is unlike a schematic diagram where the arrangement of the components interconnections on the diagram usually does not correspond to the components physical. Old furnace wiring diagram wiring diagram furnace wiring diagram. Basic gas furnace wiring diagram wiring diagram is a simplified conventional pictorial representation of an electrical circuit it shows the components of the circuit as simplified shapes and the capacity and signal associates amongst the devices.
This is an introduction that will help yo.
They connect to a two wire thermostat generally a mechanical thermostat with a mercury. Each component ought to be set and connected with different parts in particular. However this diagram is a simplified variant of the arrangement. Once the room has heated up to the desired thermostat setting the thermostat opens.