FM200 with HVAC Smoke Damper
FM200 with HVAC Smoke Damper
(OP)
Could anyone advise why the smoke dampers are required at HVAC supply and return duct for the electrical room protected by FM200 system? Which code should I refer to for this requirement? I am wondering if FM200 control panel can shut down the air-handling unit instead of smoke damper in case smoke is detected in the room?
Thank you for advise.
Thank you for advise.





RE: FM200 with HVAC Smoke Damper
Most dampers currently in the market that are listed as meeting UL standard 555 are combination fire and smoke dampers.
See the following requirement from Section 5.3.4 of NFPA Standard 2001, which governs the design and construction of clean agent fire suppression systems:
To prevent loss of agent through openings to adjacent hazards or work areas, openings shall be permanently sealed or equipped with automatic closures. Where reasonable confinement of agent is not practicable, protection shall be expanded to include the adjacent connected hazards or work areas or additional agent shall be introduced into the protected enclosure using an extended discharge configuration.
RE: FM200 with HVAC Smoke Damper
RE: FM200 with HVAC Smoke Damper
I am not chastizinging. Rather, make sure that the design compensates for leakage.
RE: FM200 with HVAC Smoke Damper
Have great holidays and happy new year!
RE: FM200 with HVAC Smoke Damper
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UL555 – class 1 is the ultra low leak dampers. I like to use Greenheck
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RE: FM200 with HVAC Smoke Damper
The first false alarm (and they happen often in some datacenters), you will be crying.
At least use two and cross zone them.