Water level control relay for boilers and steam generators

Product description

The water level control relay is designed for use in boilers, steam generators, and water heating systems, where it provides automatic shutdown of the electric heating system when there is insufficient water in the tank.
It prevents the heater from operating "dry," protecting the equipment and extending its service life.

The device operates with two independent capacity systems - TANK (well/tank) and BOILER (boiler/heater).

Equipment functions

Tank level control (TANK)

• As long as the water level is above the TANK electrode, the pump operates (the "motor operation" indicator is on).

• If the water level drops below the TANK electrode, the pump is disconnected.

Boiler/heater level regulation (BOILER)

• When the BOILER probe level is reached, the pump is disconnected - the tank is full.

• If the boiler level drops below the BOILER electrode, a 10-second delay is activated, after which the pump automatically connects and refills the water.

Electric water heating regulation (RES Elect)

• When the water in the boiler reaches the RES Elect level, the heater turns on (indicator light off).

• If the level drops below the RES Elect, the heater will turn off and the indicator light will turn on.

This function protects the heater from overheating or destruction when the tank is empty.

Wiring (summary)

• Com Elect - common electrode (must be connected to the metal body of the tank/boiler; if non-conductive, use a separate electrode)

• Tank Elect - well/tank level electrode

• Boiler Elect - boiler level electrode

• Res Elect - electrode for heater control

• Res Out - output for heater connection

• Water Not - output for light signal (no water)

Important note

• Electrodes are not included - they must be ordered separately.

• We also recommend purchasing 3 2A circuit breakers to protect the input and output circuits.

• Wire the relay exactly according to the manufacturer's diagram.

• If the receptacle is non-conductive, a special common electrode will need to be used.

Technical parameters

• Rated voltage: 220 V AC

• Operating voltage range: 90-110

• Frequency: 50/60 Hz

• Power consumption: < 3 VA

• Operating temperature: -40...+50 °C

• Connection: screw terminals

• Mounting: DIN rail or mounting panel

• Water level control relay

• Documentation / wiring diagram
  (Electrodes not included)