The CO₂ opening mechanism consists of:

• robust metal constructions,
• pneumatic cylinder,
• manifold and
• locks.

The mechanism works fully automatically at elevated temperatures with the help of a temperature ampoule that explodes at 68 or 90°C. When the temperature ampoule explodes, the spring of the needle is released, which pushes it through the wall of the CO2 bomb, which contains liquefied CO2 gas. Due to the drop in pressure in the bomb, the gas changes from a liquid to a gaseous state and pushes the piston and with it the light dome, which is rotatably clamped to the piston. The achieved opening angle is 140°. In the case of controlled activation of the fire mechanism, this can only be done with the help of the 24V electric ACTIVATOR, which is activated via the fire control panel.