Water Level Alarms | Spirax Sarco
The action of the low water level alarms under UK regulations is as follows: 1st low level alarm - Shuts down the burner at the alarm level, but allows it to re-fire if the level recovers. 2nd low level alarm (often called lockout) - Also shuts down the burner at the alarm level, but the burner controls remain ‘locked out’ even if the water ...
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