ZODIC-M Smoke and heat extraction set – mechanical
Intended use
ZODIC-M is a complete set of products for smoke and heatextraction from staircases, which improves the conditions for conducting fire extinguishing and rescue actions. It also increases the safety of people and enables their conditional evacuation. The main task of the ZODIC-M product set is generating the forced flow of air and smoke in the staircase, enabling smoke extraction and preventing smoke dropping below the storey where fire started. Air and smoke flowing through the smoke extraction device is monitored on a continuous basis and the amount of compensation air is adjusted depending on the actual flow. An additional function of the ZODIC-M set is the possibility of ventilating the staircase.
Operating rule
Operating rule
The system may be activated automatically by smoke and heat detectors or manual alarming with the use of manual smoke extraction push buttons or through the signal received from the
Fire Alarm System(FAS).
After smoke detection, the SCD-1-L smoke and heat vent, which is placed in the roof/upper part of the staircase or the CDH-F-L wall smoke and heat vent is opened, and the compensation airsupply is activated which operates with variable efficiency.
The acoustic/optical signalling device of fire hazard may be activated optionally. If there are electric holders mounted in the building, they are released and it is possible to close the door separating fire zones.
ZODIC-M monitors the speed of gas flowing through the smoke extraction device. It adjusts the supply of compensation air fed to the staircase space in a continuous and smooth manner. The variable forced flow results in the effective removal of the smoke and air mixture from the staircase, and it ensures the effective smoke removal from the staircase, preventing smoke from dropping below the storey which is on fire. A compensation fan controlled by means of an inverter increases efficiency when opening the door during evacuation and it decreases efficiency when smoke force raises the pressure excessively in the staircase.
