The line voltage feeding the furnace to operate the fan blower motor is transformed down to a safer level of 24 volts the gas control valve needs 24 volts to open and after making a series loop through at least one safety device the most basic and mandatory one is an over temperature shut down the power goes up to the thermostat and.
Line voltage thermostat wiring diagram.
Unlike the low voltage thermostats that control central heating and air conditioning systems electric baseboard heaters use line voltage thermostats that are installed as part of the full voltage circuit powering the heater.
In short the red wires from the switch connect one each to each of the incoming 240vac line voltage wires of the heating circuit.
A line voltage thermostat is for a simple heater or cooler and it has only one function.
Electric baseboard heaters are good for spot heating areas of your house that central hvac does not reach.
Our photos and wiring diagram for a marley d 26 wall mounted line voltage thermostat illustrate how this simple 240vac thermostat is wired to the electric baseboard heater.
Assortment of line voltage thermostat wiring diagram.
The thermostat can be mounted directly on the heater itself or it can be mounted on the wall so that the circuit wiring passes through the thermostat first on the way to.
To turn the device on and off.
A wiring diagram is a simplified conventional photographic representation of an electric circuit.
The thermostat interrupts the circuit like a wall switch interrupts a light circuit.