Relay for water level control in boiler and steam generator

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 the water in the tank is insufficient.
Prevents the heater from running "dry," protecting the equipment and extending its lifespan.

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 running" indicator is on).

• If the water level falls below the TANK electrode, the pump turns off.

Boiler/heater level control (BOILER)

• When the BOILER sensor level is reached, the pump turns off - the tank is full.

• If the level in the boiler falls below the BOILER electrode, a 10-second delay is triggered, after which the pump automatically turns on and refills the water.

Electric water heating control (RES Elect)

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

• If the level falls below the RES Elect, the heater turns off and the indicator light turns on.

This function protects the water heater from overheating or damage when the reservoir is empty.

Wiring (overview)

• Com Elect - common electrode (must be connected to the metal body of the tank/boiler; if not 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 signal light (no water)

Important warning

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

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

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

• If the receptacle is not conductive, a special common electrode must 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

• Relay for water level control

• Documentation / wiring diagram
  (Electrodes not included)