Therefore an extra conductor is not required.
Water heater plug wiring.
Before you begin use.
I believe the center wire on the 3 prong outlet is a neutral wire and i ve read that using neutral for chassis ground is never a good idea.
There is no neutral wire in the water heater since it is 240v unit.
Wiring a hot water heater in 7 steps remove the junction box cover this is probably on the top or the side of the water heater.
If the circuit wiring is supplied by a 4 wire cable and there is a spare white wire then simply cap off the white wire with a wire connector fastened onto the end of the wire.
The water heater only requires 2 hot 120 volt wires to heat water and function.
Understanding electric water heater wiring turning off the power.
The electrical wire connections for a water heater are made at a built in junction.
Test the voltage never mess with any electrical components without first checking to see if there is power running to.
The only other wire to connect is the wire that goes to the metal case of the water heater where there s a green screw.
Connect the other wire from the water heater to the white wire.
On the top or the side of the hot water heater depending on the type you will see the junction box cover.
If you are replacing an existing hot water heater then the circuit will already be present at the site.
How to wire an electric water heater step 1.
If you are hard wiring the water heater to the branch circuit conductor you will need to run three awg 12 conductors one black one white and one green through a short length of flexible.
Before you examine or touch the water heater wiring or electrical connections turn off the power.
Locating the electrical connections.
At this time the conventional hot water heater does not require a neutral however that will most likely change.
Wiring an electric water heater does not require that you use a plug in device.
Step 6 replace check.
For long distances you may need to go with heavier wire.
Most water heaters are wired with 10 2 w ground shielded cable.