Honeywell L4097B1551B aquastat

Aquastat (thermostat) Honeywell L4097B1551B Immersion liquid-filled thermostat for regulating and limiting water temperature in heating systems. Aquastat Honeywell L4097B1551B (Aquastat) is a reliable immersion thermostat with a liquid-filled sensor, designed for regulating water temperature in hydraulic heating systems, as well as for emergency limiting of the maximum coolant temperature in indirect water heaters and water heaters. The product features high sensitivity due to the liquid-filled sensor. If your boiler overheats, does not maintain a stable temperature, or frequently shuts down in emergency, the cause may be a faulty standard aquastat. Technical specifications Parameter Value Part numbers L4097B1551B, 534.109.023 Manufacturer Honeywell Mounting type Immersion (with well) Sensor type Liquid-filled Working medium Water, aqueous solutions Switch type Check marking (SPST/SPDT) Electrical load 10 A (resistive) / 2.5 A (inductive) at 250 V AC Capillary length Varies (built-in or remote) Protection class IP40 Key advantages High-precision liquid measurement: The aquastat is equipped with a sensor filled with a special liquid. This provides fast thermal response and high sensitivity compared to bimetallic alternatives, ensuring minimal temperature fluctuations. Reliable protection against overheating (L4097B): This series is typically used as a limit thermostat or aquastat controller. Depending on the version, it can provide emergency shutdown of the burner when the permissible temperature is exceeded (limiter), preventing boiler overheating and boiling. Immersion mounting for accuracy: The sensor is installed directly into the heat exchanger well, ensuring