Low Water Cut Off Wiring Diagram. These instructions will probably be easy to grasp and apply. First kill the power to furnace while you work.
Lever operated full port ball. For the 24v burner120v feeder setups. It reveals the elements of the circuit as streamlined forms and the power as well as signal links between the devices.
Connect the neutral lead wire from the power source to terminal n 3.
2 1 p1p2 a 2 1 p1p2 a 24 vac 0 burner circuit. Connect the neutral lead wire from the power source to terminal n 3. If there is no. In operation they will interrupt the electrical current to the firing device if the water in the system drops below the boiler manufacturers minimum safe water level.