I am assuming this is a large 240 volt water heater and you are asking about the connection at the water heater. First thing is to turn the power to the water heater off at the service panel of disconnect if it has one. You will see three wires that connect to the heater. Normally a white, black, and a ground that is usually green or just a copper wire. On the water heater when you remove the plate on top you will have 2 wires. A red & black or a white & black. You will see a ground screw. Connect the green or copper ground wire to that screw. The 2 wires left you connect either one to either wire. Makes no difference as each wire is carrying 120 volts. When you connect these wires secure them tightly with a wire nut, no wire exposed, and then, with electrical tape, tape them up so as the wire nut cannot come off. Push the wires back into the hole an secure the cover on top.
141 views
Usually answered in minutes!
×