Merlin CT1200S Ventilation Interlock
The Merlin CT1200S ventilation interlock system is designed specifically for use in commercial kitchens to
meet BS6173: 2001, which is now a much-recognised standard in the catering industry.
This panel is to be used when the kitchen appliances do have flame failure devices. Therefore Gas proving is not a requirement.
The Merlin CT1200S acts as an interlock between the ventilation system and the gas solenoid valve. It ensures
the gas solenoid valve cannot be opened until the ventilation system is proven to be operating. The fans are
monitored with air pressure differential switches. To operate the Merlin CT1200S the fans should be turned to
the “on” position, once our panel receives a signal to indicate the fans are operating turn the key to the “on”
position this will open the gas solenoid valve. If the fans should fail, the “fan fault” LED on the panel will illuminate and the gas solenoid valve will close. When there is a “fan fault” the supply fan or extract fan led
will flash to inform the electrician or kitchen staff which fan has failed.
Operating the system in the above manner will ensure the requirements of BS6173: 2001 are fully met where all the
catering equipment has flame failure devices fitted.
Installation for the Merlin CT1200S is easy as there is no calibration. Wiring of the system is straightforward using
volt free connections for all air pressure differential switches and remote emergency stops. A corgi-registered
installer would be required to fit the gas solenoid valve. All Gas solenoid valves supplied by S&S Northern carry a full
3-year manufactures warranty.
CT1200S Product Data Sheet
CT1200S Wiring Diagram
CT1200S Troubleshooting Guide
***** 3 Year Warranty *****
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