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Hot Cylinder Electrical Wiring

The hot cylinder wiring is a method of wiring a hot water cylinder. The wiring connects the cylinder to a thermostat, which controls the temperature of the water inside the cylinder. The thermostat is typically located on the outside of the cylinder, near the top.

The hot cylinder wiring uses a three-wire cable: live, neutral, and earth. The live wire supplies power to the thermostat, which then supplies power to the immersion heater inside the cylinder. The neutral wire provides a return path for the current. The earth wire provides a safety circuit that protects against electrical shock.

Hot Cylinder Thermostat Replacement

Turn off power at the circuit breaker.
Drain the water from the hot water cylinder.
Remove the thermostat cover plate.
Disconnect the wires from the old thermostat.
Remove the old thermostat.
Install the new thermostat.
Connect the wires to the new thermostat.
Replace the thermostat cover plate.
Turn on the power at the circuit breaker.
Fill the water tank back up with water.
Test the thermostat to make sure it is working properly.

Hot Cylinder Element Replacement

Turn off the power and water supply.
Drain the water tank.
Remove the element cover plate.
Disconnect the wires from the old element.
Unscrew the old element using a socket wrench.
Install the new element and tighten it securely.
Reconnect the wires to the new element.
Replace the element cover plate.
Fill the water tank back up with water.
Turn on the power and water supply.
Test the new element to ensure it’s working properly.