Gas Interlock
The gas ventilation/gas interlock system to comply with BS6173:2009 shall be manufactured and supplied by S&S Northern Ltd (Tel: 01257 470983) The Merlin CO2 Monitor shall be supplied in accordance with the IGEM/UP19. The Merlin CO2 Monitor has a screen to show the concentration of CO2 in the kitchen area. It also has a low, medium and high level LED to suggest when the ventilation should be increased. In the event where the CO2 rises above 4500ppm the gas solenoid valve should close and the panel go into “CO2 High” alarm.
The model to be supplied is the Merlin CT1650+ System which is 178mm (height) x 254mm (length) x 62mm (depth). The Merlin CT1650+ can interlock with up to four fans and has two built in current monitors to ensure that the ventilation is operating. In the event where the ventilation fail the gas solenoid valve should be closed and the system will go into “fan fault” alarm.
1 x Merlin CT1650+
1 x Merlin CO2 Monitor
1 Off Gas Solenoid Valve is also required
There should be a means of isolation by each main exit and any emergency knock-off buttons should be connected with the gas safety system. Also connections can be made to the fire alarm and BMS to shut the gas solenoid valve in the event of a genuine alarm.
The gas ventilation/gas interlock system to comply with BS6173:2009 shall be manufactured and supplied by S&S Northern Ltd (Tel: 01257 470983)
The model to be supplied is the Merlin 2000S System which is 178mm (height) x 254mm (length) x 62mm (depth) and this will come with a gas pressure transducer to carry out a gas proving test on all the downstream appliances. The Merlin 2000S can interlock with up to four fans by using either air pressure differential switches or external current monitors. In the event where the ventilation fails the gas solenoid valve should be closed and the system will go into “fan fault” alarm.
The Merlin CO2 Monitor shall be supplied in accordance with the IGEM/UP19. The Merlin CO2 Monitor has a screen to show the concentration of CO2 in the kitchen area. It also has a low, medium and high level LED to suggest when the ventilation should be increased. In the event where the CO2 rises above 4500ppm the gas solenoid valve should close and the panel go into “CO2 High” alarm.
The gas safety systems should be interlocked with the fans using the using 1 x Merlin PM2+ Current Monitor which is 113mm (height) x 163mm (length) x 62mm (depth).
1 x Merlin 2000S Panel (incl. Gas Pressure Transducer)
1 x Merlin CO2 Monitor
1 x PM2+ Double Current Monitor
1 Off Gas Solenoid Valve is also required
There should be a means of isolation by each main exit and any emergency knock-off buttons should be connected with the gas safety system. Also connections can be made to the fire alarm and BMS to shut the gas solenoid valve in the event of a genuine alarm.
