In many installations the smoke lines are interconnected with a carbon dioxide fire
extinguishing system through a manually operated 3-way valve.
Figure 2-3. Smoke Lines Interconnected With
Carbon Dioxide Extinguishing System Through 3-Way Valve
Carbon dioxide can be discharged into the affected space.
Figure 2-4. Carbon Dioxide Discharged
Into Affected Space By Operation of 3-Way Valve.
2-3
