1. The proposed fire suppression system is 3M Novec 1230. This clean agent is designated in the NFPA 2001 as FK-5-1-12. This agent is also approved by FM. Below is the guideline for the design:
a. The minimum design concentration for Class C fire should be 4.7% at 21 C room temperature. This is slightly higher than Class A (ordinary combustible) at 4.5%.
b. The concentration shall be held at the highest height of protected content within the hazard for a period of 10 minutes. A room integrity test should be conducted to ensure this.
c. The discharge time required to achieve 95 percent of the minimum design concentration shall not exceed 10 seconds.
d. The system should be automatically operated. A manual discharge mean should also be installed.
e. The protected enclosure shall have the structural strength and integrity necessary to contain the agent discharge.
f. Where a clean agent total flooding system is being provided for the protection of a room with a raised or sunken floor, the room and raised or sunken floor shall be simultaneously protected.
i. Each volume, room, and raised or sunken floor to be protected shall be provided with detectors, piping network, and nozzles.
g. All forced-air ventilating systems, including self-contained air recirculation systems, shall be shut down or closed automatically before discharging the clean agent.
2. Please ensure that the air conditioner are not located directly above any server rack or computer equipment. Make sure appropriate drain is provided for the air conditioner to prevent an overflow or clogged of a condensate water.
3. The new ceiling should also be fire proof as same as wall (gypsum board). A minimum fire rating is one-hour.
a. Door should have the same fire rating. Normal glass door may not be appropriate.
b. Opening penetrations should be sealed with one-hour fire stops.