Gas Interlock Systems FIRST CHOICE CATERING SPARES LTD An adequate ventilation system is essential in most commercial catering kitchens to safeguard the health of the workforce and current Gas Supply Regulations require that it is interlocked to ensure that the gas supply is shut off in the event of ventilation failure. This is a mandatory requirement: On installation of a completely new extraction/ventilation canopy. On installation of a completely new gas pipework run. On installation of a completely new cooking suite. On installation of any Category B equipment, ie combi ovens, deep fat fryers, grills, etc. Includes replacement of existing equipment. The GIS provides a convenient and cost effective solution to this requirement with a range of models and features to suit all installation requirements. With the G02 and G04 models, sensors placed either side of the ductwork fan are connected to a pressure differential switch which is activated when the pressure difference changes. Alternatively the correct operation of the ventilation system can be verified by monitoring the power consumption of the circulation fan using Fan Power Sensors which are built-in to the G05 and G06 models. If incorrect operation of the ventilation system is detected by either method a solenoid valve is closed to shut off the gas supply to the kitchen. To simplify installation the GIS can incorporate an emergency shut-off switch and fan control switches. A complete system requires a GIS Control Box, either a Pressure Differential Switch or a Fan Power Sensor per fan (built-in with G05 and G06 models), a Gas Solenoid Valve and a Remote Emergency Shut-off Switch (optional). COMPONENTS GAS Pressure Differential Switch Pressure Differential Switch OR OR Fan Power Sensor (built-in to G05/G06) Fan Power Sensor (built-in to G05/G06) FAN 1 FAN 2 (optional) Emergency Shut-off Switch (optional) 230V Electrical Supply Gas Solenoid Valve FEATURES OF THE GIS GAS INTERLOCK SYSTEMS G02 G02R G04 G05 G06 Operates Two Fans Anti Back Pressure Feature Can be used with Gas Proving System (optional) Connection for Remote Emergency Stop Switch Built-in Emergency Stop Switch Connection for Pressure Differential Switch/Fan Power Sensor Built-in Fan Power Sensors Connection for Fire Alarm Panel Audible Alarm Fan Soft Start Built-in Fan On/Off Control Built-in Fan Speed Control 530 Tel: 01543 577778 Fax: 01543 504141 Email: email@example.com Web: www.firstchoice-cs.co.uk Note The Health and Safety Executive have confirmed in Catering Information Sheet 23 (Rev. 1) that overrides should no longer be fitted to Gas Interlock Systems. The current range of GIS models meet this requirement and do not feature overrides. This requirement is not retrospective and existing interlock installations with overrides will be allowed but will be subject to a risk assessment.
Combi Oven Catalogue
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