SafeAir (GP) Gas Proving and Ventilation Interlocking for Commercial Kitchens

The SafeAir (GP) is a ventilation interlock and gas proving system for commercial kitchens.

Ventilation Interlock

Interlocking can be achieved with the use of airflow switches or current monitoring.

It is a requirement (see BS 6173 & UP19) that any mechanical ventilation within a kitchen environment (supply and extract) is switched on and running before the use of any gas appliances can take place. If the ventilation is not switched on, the LCD display informs the operator of the fans that are off. It then advises to switch them on and reset the panel.

Gas Pressure Proving

Gas proving must be fitted in any commercial kitchen which has appliances fitted without flame failure devices (FFD’s). As explained further in the article 
“why fit gas pressure proving in a commercial kitchen?” gas proving should be considered for the long-term benefit and safety of the site when considering other gas standards and that the majority of leaks identified are before the FFD’s.

Using our patented differential pressure proving method the system checks the gas pipework and appliances in a kitchen for gas leaks. It also monitors for low pressure and overpressure without opening the solenoid valve, making it the only truly safe method of proving available.

see Why choose Medem differential pressure proving?

Gas Detection

Up to four CO₂ gas detectors can be connected to the system, low level alerts will cause a audible tone and visual message on screen, high level alerts will additionally isolate the gas supply.

Medem detectors can be used to monitor the carbon dioxide level to ensure that HSE set levels are not exceeded.

Gas Valve Isolation

In the event of fan failure, a high CO₂ alert or the activation of the emergency circuit the connected gas isolation valve will be closed.