Single Element Electric Water Heater Thermostat Wiring Diagram

The wiring connection for both single phase 120v and 240v are same i e.

Single element electric water heater thermostat wiring diagram.

In the electric water heaters and thermostat wiring and installation series we will be showing that how to wire and install a non continuous non simultaneous dual element water heater and thermostat for 240v ac single phase us and 230v ac single phase uk eu. Wiring diagrams residential electric water heaters current production 315267 000 time clock switch operates bottom element only to power supply to time clock switch off peak meter operates to power supply to off peak clock 2 wire 1 phase non simultaneous operation from 3 wire heater junction box black blue yellow to off peak. In the above diagram i shown that the upper water heater element is switched off and lower heater element is switch on. Single phase 240v and 230v non simultaneous dual element water heater thermostat wiring.

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. The line is connected to the l 1 terminal while neutral or second line is connected to the l 3 terminal. The water heater element is connected to the thermostat via t 2 as hot and l 4 as neutral. Its single thermostat is responsible for heating the water throughout the system to a factory preset temperature usually 120 degrees fahrenheit and usually incorporates a degree dial where that temperature may be modified.

Black color is neutral while red is phase or line and the yellow green wire is used for ground earth. A single element or single thermostat water heater is one with a single means of temperature control for the entirety of the water tank.