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Natural Gas and Carbon Monoxide detectors

  

Carbon Dioxide sensors and alarms
 
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Permanently fixed commercial and domestic gas detectors. The GS and BX range of gas detectors and associated sensors are used to sense many explosive and toxic gases and safely turn off gas supplies to affected areas. The CHCO is a combined Carbon Monoxide and Natural Gas detector.

  
Infrared room and duct mounted carbon dioxide sensors for comfort control and improved energy management of ventilation systems. Portable Carbon Dioxide datalogging sensors and alarms. CO2 Alarms for commercial kitchen ventilation monitoring and control.
Duomo Gas Safestart systems for Commercial Catering establishments and science laboratories
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G621 Gas Safestart assembly. KS22 Trio Safestart KS21 Keystart Control Panel FP45D Current Monitor

This system checks that all downstream gas taps are closed before supplies are re-instated

Keypad operated gas proving sequence controller. For use with the G621gas valve assembly Key operated control panel for the G621gas valve assembly.

Single or dual. With LCD display and status indication. For monitoring fan operation on kitchen ventilation systems.

BS6173:2001 and the Duomo Gas Safestart.

Scope of the standard
This British Standard specifies the installation requirements of new and second hand gas-fired appliances used in catering establishments burning 2nd or 3rd family gases.

Emergency Isolation Systems

'The Gas supply system shall be interlocked with any mechanical ventilation supply or extract system, and this will normally require the fitting of an automatic valve.'

'Whenever an automatic electric isolation valve system is used, an automatic system for proving that all downstream gas supplies to the burners and pilots have been turned off shall be employed prior to the valve being energized to re-open.'

Hotels, Restaurants, Canteens, Schools, Colleges, etc. are required to conform to this standard. The Duomo Gas Safestart System is a quick to install, cost effective means of allowing kitchens to comply. These units conform to BGIM20 and are pre-assembled and fully tested at our UK factory. Sizes range from ½" BSP (15mm) to 4" PN16 (100mm).

There are two main methods of proving that kitchen ventilation systems are operating before making gas available to downstream kitchen appliances.

i) The Duomo ADP10 Differential air pressure switch kit.

ii) FP45 Current Monitor. This has a low level and high level threshold. A digital display shows the monitored current drawn by the fan motor. An indicator lights when either threshold is crossed. to monitor the mechanical ventilation supply and extract systems.

These interlock with the KS21 or the New Trio Safestart control to ensure that extraction is sufficient prior to the operation of the G621 assembly.

For price and availability please call 01905 797989 or email your enquiry to
sales@duomo.co.uk