The Flamco WMS 800 is a low water cut-off for protecting the boiler against dry running. If the water level falls below the minimum, it interrupts the boiler power supply. Connection G 1", max. medium temperature 120 °C. More information
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| Connection size | G 1" |
| Temperature | -10...120 °C |
| Weight | 1.20 kg |
Flamco WMS 800 is a low-water cut-off (level switch) for protecting the heat source. It monitors the level of heating water in the boiler and, if it drops below the minimum value, interrupts the boiler power supply, thereby preventing damage caused by dry running.
The WMS 800 is installed in heating systems as boiler protection against insufficient heating water, where the medium temperature does not exceed 120 °C. According to EN 12828, installation of a low-water cut-off is mandatory for heat sources above 300 kW or in cases where the heat source is located on the upper floors of a building. It is intended for heating installers and heating system designers.

The principle is simple: if the water level in the boiler drops below the minimum value, the switch interrupts the power supply to the boiler system and thus stops its operation. The device is equipped with a test button that allows the low-water condition to be simulated at any time, making it possible to verify correct operation of the cut-off without having to drain the system.
Technical parameters:
According to EN 12828, installation is mandatory for heat sources with an output above 300 kW or in cases where the heat source is located on the upper floors of a building.
The device includes a test button that can be used to simulate a low-water condition and verify both the operation of the switch and interruption of the boiler power supply without any intervention in the system.
The cut-off is designed for heating water where the medium temperature does not exceed 120 °C. The system operating range is −10 to 120 °C, pressure rating PN 10.
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