Electric Water Heater Thermostat Wiring

Electric water heaters require a 240 volt dedicated circuit which serves only the water heater and no other appliances or devices.

Electric water heater thermostat wiring.

Wiring an electric water heater also includes the thermostats. Unlike the low voltage thermostats that control central heating and air conditioning systems electric baseboard heaters use line voltage thermostats that are installed as part of the full voltage circuit powering the heater. Meaning that only one element is allowed to heat at a time. The thermostat can be mounted directly on the heater itself or it can be mounted on the wall so that the circuit wiring passes through the thermostat first on the way to.

The wiring connection for both single phase 120v and 240v are same i e. Usually when the upper thermostat goes bad you will have no hot water at all while a bad lower thermostat makes itself known when there is only a small amount of hot water before the tap water goes cold. Most residential water heaters have an upper and a lower thermostat. The line is connected to the l 1 terminal while neutral or second line is connected to the l 3 terminal.

These are usually set up for non simultaneous operation. It shows the elements of the circuit as simplified forms and also the power as well as signal connections between the tools. One is the heating element second is the power switch to avoid overheating problem and the last one is the thermostat. Electric water heater wiring with diagrams explanation.

We use water heater thermostat for controlling the water temperature. At the water heater the black circuit wire connects to the black wire. The circuit wiring typically includes a 30 amp double pole breaker and 10 2 non metallic nm or mc cable. A wiring diagram is a simplified standard pictorial representation of an electrical circuit.

These thermostat we used for controlling the water heater element. Wiring diagrams for actual wiring circuit of unit reference circuit type listed on rating plate. 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. In general there are three main components in an electric water heater.

In this post i am gonna to share with some diagrams which clear your concept about the wiring of water heater geyser. An electric hot water heater has two thermostats controlling two separate heating elements one in the upper half of the tank one in the lower half. Collection of wiring diagram for hot water heater thermostat. Black color is neutral while red is phase or line and the yellow green wire is used for ground earth.

The thermostats tell the elements when to heat up.