Certified Data Centre Professional (CDCP) 2025 – 400 Free Practice Questions to Pass the Exam

The cooling system must be switched off before the fire suppression system's gas is released because the primary function of such a system is to eliminate the fire by displacing oxygen or introducing gas that suppresses combustion. If the cooling system continues to operate, it may interfere with the effectiveness of the gas, potentially causing the environment to remain conducive to combustion or leading to the production of harmful byproducts.

In environments like data centers, where sensitive electronic equipment is operating, it's crucial to manage the atmosphere during a fire suppression event by ensuring that the release of the system's agent is not hindered. This helps in reducing damage to equipment and ensuring safety for personnel.

While other components like the leak detection system and CCTV might play important roles in safety and monitoring, they do not pose the same risk of compromising the effectiveness of the fire suppression system as the cooling system does. Therefore, focusing on shutting down the cooling system is essential for a successful fire event response.