Site Visit & Design Service | Custom Smoke & Heat Extraction Set

Site Visit & Design Service | Custom Smoke & Heat Extraction Set

Site Visit and System Design Only

This listing pertains solely to the site visit and design phase of the smoke and heat extraction system for staircases. It does not include the actual products or installation of the system.

During the site visit, our experts will assess the specific requirements and conditions of your building to design a customised smoke and heat extraction solution. This involves evaluating the staircase layout, existing fire safety measures, and potential challenges to ensure the proposed design optimally enhances safety and evacuation procedures.

The deliverables from this listing will include:

A comprehensive assessment report of the site
Customised design plans for the smoke and heat extraction system
Detailed specifications and recommendations for system components
An implementation strategy for installing the designed system
Please note that this service is preparatory. The actual products, installation, and subsequent operational phases are not included in this listing and will need to be arranged separately.

Intended Use

The system is a comprehensive set of products designed for smoke and heat extraction from staircases, enhancing conditions for fire extinguishing and rescue operations. It increases the safety of individuals and facilitates conditional evacuation. The primary function of the system is to generate a forced flow of air and smoke in the staircase, allowing for efficient smoke extraction and preventing smoke from descending below the floor where the fire originated. The flow of air and smoke through the extraction device is continuously monitored, with the amount of compensation air adjusted based on the actual flow. Additionally, the system can ventilate the staircase.

Operating Rule

The system can be activated automatically by smoke and heat detectors or manually via smoke extraction push buttons or signals from the Fire Alarm System (FAS).

Upon smoke detection, the smoke and heat vent, located in the roof or upper part of the staircase, or the wall smoke and heat vent, opens, and the compensation air supply is activated with variable efficiency.

An optional acoustic/optical signalling device may be activated to indicate fire hazard. If the building is equipped with electric door holders, they will be released, allowing the doors that separate fire zones to close.

The system monitors the speed of gases flowing through the smoke extraction device and continuously adjusts the supply of compensation air fed to the staircase. This variable forced flow effectively removes the smoke and air mixture from the staircase, preventing smoke from descending below the floor on fire. A compensation fan, controlled by an inverter, increases efficiency when doors are opened during evacuation and decreases efficiency when smoke forces raise the pressure excessively in the staircase.