The low gas pressure switch monitors whether there is sufficient supply pressure before and during burner operation.
What it controls
If the pressure drops below the permissible limit, its contact changes state and the safety system can prevent startup or stop the burner.
Why it is important
Insufficient gas pressure can lead to incorrect combustion ratio or unstable operation.
Where it is installed
Its position is determined by the gas train design and the manufacturer's instructions.
Setpoint
The value is not set empirically. It is determined by the burner's permissible limits and the installation study.
