Lorient Talkback Damper Control System - How to ventilate a building with fire & cold smoke dampers

The capability to maintain a smoke barrier prior to the need for fire containment is becoming an increasingly critical area for intumescent products. Lorient's LVN20S fire and cold smoke resistant air transfer grille, coupled with the Lorient Talkback Damper Control System, provides a comprehensive solution to this problem. In this article we'll explain how the system works, along with the key features and benefits.

THE LORIENT LVN20S FOR DOORS
The LVN20S is a unique product that contains fire and cold smoke within a room in emergency conditions, while still allowing for ventilation through doors in everyday use. It has the same intumescent, non-vision louvered slat configuration as the fire-only LVN20, but it also incorporates an electro mechanically operated smoke shutter mechanism. This mechanism is controlled by Lorient’s Talkback Damper Control Unit (DCM), which receives a signal from the building’s fire alarm in the event of a fire. When the alarm goes off, the DCM triggers the shutters within the LVN20S to close, blocking the passage of highly toxic cold smoke.

Most large buildings require a significant number of FD30S and FD60S fire doors within any one fire zone. These doors may be a considerable distance apart, or even on different floors. The Talkback system has been designed to control up to sixteen air transfer grille assemblies from one centralised status monitoring unit. A unique 2-way communication system operates between the Damper Control and Monitor Unit (DCM) and the air transfer grille actuators.

The intumescent air transfer grilles in the LVN20S activate at temperatures above 100°C. At this point, the material expands to form a solid block that stops the fire from spreading through the building for a designated period of time.

Find out more about the LVN20S system here: http://tinyurl.com/yxwknc66

See the full product range here: http://tinyurl.com/3yazctur

Contact us for pricing or specification advise: [email protected]