A gas interlock system in a commercial kitchen prevents gas flowing when mechanical ventilation is off or airflow is too low—protecting staff from carbon monoxide in busy London kitchens.
How interlocks work
Sensors monitor fan current, air pressure or damper position. If ventilation fails, the interlock closes the gas solenoid valve and appliances shut down. Staff should know reset procedures after faults are cleared.
BS 6173 and inspections
British Standard BS 6173 sets expectations for new and altered catering installations. CP42 inspections include interlock function tests where fitted. Bypassing interlocks is dangerous and will fail certification.
Installation and upgrades
We retrofit panels on older kitchens and coordinate with extraction contractors when duct sensors move. Document test results for your compliance file.