All you'll need is a 2 wire with ground feeder. . See the wiring diagrsm for your water heater Watch out: if you are not trained in proper and safe electrical wiring yiu could be shocked or killed. . No need for a neutral. The wiring connection for both single phase 120V and 240V are same i.e. . Not enough voltage for the 240-volt Hot Water Heater. The water heater element is connected to the thermostat via T 2 as hot and L 4 as neutral. The wire supplying power from the breaker panel to your water heater will usually be a 10/2 Romex cable (Blk wire- hot, Marked White wire - hot, Bare copper wire - ground). Note that these element is 220 volts ratings and you can also 440 volts heater elements but you need to provide the line supply, my mean to lines or two hot wires supply 440 volts. On 2020-05-05 by Wayne Harrison. House wiring has black/white/ground. Part of the series: Water Heaters. . Electric water heaters generally don't use a neutral wire. Water heaters are not as simple in their wiring as you might think.. . . Where does the red go? . The orange wire only applies to homeowners with an air-source heat pump. Q: I’m replacing the heating element in my electric water heater. Sounds like it is a 220-240 Volt hot water heater. Homeowners with geothermal heat pumps have no use for the orange wire. In the above diagram i shown that the upper water heater element is switched OFF and lower heater element is switch ON. Hi and Thank you for a quick response, The make is, CraftMaster model # XXXXX serial #(NNN) NNN-NNNN The new heater is the same as the old one, accept there are only two wires one red and one black. The wires running to the element are black and white, but the white wire is wrapped with red tape. Black color is “Neutral” while red is “Phase or Line” and the yellow/green wire is used for ground / earth. The Circuit Breaker that you refer to in your third post is a 30-Amp DBL Breaker which normally is wired with one Black & one Red AWG No.10 Copper Wires for the Hot Water Heater. First you need to say which country you are living in and which country made that water heater. Red or “Rc” Wires. KMThomas: The Black & White wires in your panel would normally be a 120-volt circuit. Hi Defidel, . . Red wires, specifically Rc wires, are responsible for 24-hour volt AC power from your transformer. You may be able to tape the white cable with red tape and have it used as a hot feeder. Electric hot water heaters typically require a dedicated 30-amp, 240-volt breaker. The black and red are connected to the 220 volts supply and the white is connected to Neutral. How to Reconnect the Wires to a Heating Element on a Water Heater. the Line is connected to the L 1 terminal while neutral or second line is connected to the L 3 terminal. Only air-source heat pumps connect to your outdoor condenser. 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