Detect Smoke Early and Act Accordingly
Using our Very Early Smoke Detection Apparatus (VESDA) you can be alerted to the presence of a fire or potential fire before it fully develops.
VESDA works by continually analysing the air inside your commercial premises and aims to identify any changes which may indicate the presence of a fire.
The system works by continually drawing air into a network of pipes which feeds into a dual stage filter. The first stage of the filter removes any dust and dirt from the air before it enters a laser detection chamber for smoke detection. The air then passes through a second filter where the air is cleaned further to keep the detectors optical surfaces free from contamination, ensuring stable calibration and long detector life.
Inside the smoke detection chamber, the air sample is exposed to a laser light source. If smoke is present the light is scattered within the detection chamber and is instantly identified by the highly sensitive receiver system. The signal is then processed and then displayed via a bar graph display, alarm threshold indicator, and/or graphic display. These VESDA detectors are able to communicate this information to fire panels, software management systems and more, alerting the relevant individuals to any sign of danger.
Addressable Aspiring Systems
The addressable aspirating system works by having air sampling points located around your premises, with each point pulling air back through the system via a network of piping. The air is then sampled through the aspiring smoke detector and analysed for smoke. If smoke is detected this information is relayed to the control panel and an alarm is triggered, giving you the precise location of where the smoke was detected and allowing you to act quickly and effectively.
- Can be deployed in a wide range of different applications
- Multi-port addressability
- Unparalleled connectivity and expansion opportunities
- Field upgradability
Warehouse (Industrial) Systems
The VESDA Laser Industrial Aspirating Smoke Detector system is perfect for usage in industrial applications and harsh environments, supporting everything from warehouses to mines, and even livestock/animal facilities. The VLI detector combines a fail-safe Intelligent Filter (patent pending) with an advanced clean-air barrier for optics protection allowing the use of absolute detection and a long detection chamber life without the need for re-calibration.
- Can be used in an enormous amount of applications
- Suitable for Class 1 Division 2 applications- Groups A,B,C, & D
- Up to 2000 m2
- Five relays (fire, fault, and 3 configurable)
Gas Detection Systems
Invisible hazards can originate from the release of combustible gases/vapours and VESDA ECO (Ex) uses an existing VESDA pipe network to actively sample air for the presence of these flammable gas/vapours (alcohols), protecting personnel and property whilst ensuring business continuity. This product must be used in conjunction with an existing VESDA system but is suitable to be used in almost every environment.
- Does not require major retrofitting as it leverages existing systems
- Provides non-intrusive detection
- Approved for Class 1 Div 2 applications
- Enables centralised monitoring and communication with building systems for real-time awareness
Elevator shaft protection
VESDA ASDs work by actively drawing air through sampling holes in a network of pipes that are installed along the elevator shaft and in the elevator machine room. The sampling pipe is connected to a detector with a powerful aspirator that draws the air into a detection chamber to analyse it for the presence of smoke.
- Can be connected to a building management system via an existing fire alarm control panel or operate independently to provide alarm information
- Placed outside the machine room and in shafts to ensure the detector is always accessible for testing and maintenance.
- The sampling holes are typically located at the top of the elevator shaft. In tall buildings, the pipe runs down the shaft vertically to ensure sampling at multiple levels.
David Smith David Smith Facilities Manager, Draper Tools Limited
“We’ve been really impressed with the service from Chris Lewis Fire & Security. The fire protection solution they designed is excellent and we benefitted from seeing it demonstrated at another client’s site. They took the time to really understand our requirements – any questions we’ve had have been answered within hours, and any problems have been resolved the same day. You couldn’t ask for more. I wouldn’t hesitate to recommend them”
Martin Gibson General Manager, JETS
“The service that we have received has been first rate. Chris Lewis Fire & Security has really taken the time to understand our requirements and limitations, and has delivered in every aspect of the work. I now see them as trusted advisors who I won’t hesitate to contact when the time comes to extend or enhance the systems we now have in place.”
Neil Carden Manufacturing Director, Naim Audio
“We’re delighted with the speed and smoothness with which our fire alarm upgrade has been completed. The team at Chris Lewis Fire & Security has taken the time to fully understand how our business uses our premises, and it has recommended the best equipment to meet our needs. I have complete confidence that we’ve now got one of the best fire alarm systems available.”