Alto CS 1020 DE Manuel d'utilisation - Page 17

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Safety Features

7.1

Inadmissible excess pressure is returned to the pump´s intake line, via a py-pass bore and without residual

pressure, on the regulation safety block´s responding. The regulation safety block is set, adjusted and lead-sealed

by the manufacturer. It is not allowed to be reset.

Along with the Coaxial-spray lance, the regulation safety block renders possible an infinite adjustment of

pressure.

The low water cut-off, integradet in the regulation safety block, disconnects, whenever water is short, the fuel

supply to the oil burner. This is done via a solenoid valve. By this, the heat exchanger is not overheated.

7.2

It serves the tastk to prevent inadmissible excess working pressure. On responding of the safety valve, the

escaping liquid is carried off without risk. The safety valve too is set, adjested and lead-sealed by the

manufacturer, an it is not to be re-set.

7.3

The thermal cutout serves the task of disconnecting the machine, and of preventing its restarting, whenever a

safety feature fails to function, and, at the same time, water is short.

Important note:

Once the thermal cutout has been in action, the machine can only be restarted again after replacement of the

thermal cutout.