Where should fire smoke dampers be installed?
Location: Fire dampers are installed in or near the wall or floor, at the point of duct penetration, to retain the integrity and fire rating of a wall or floor whether it is a ducted or open-ple- num return application.
What is the difference between a fire damper and a smoke damper?
Whilst fire dampers function to help stop the passage of fire, smoke dampers work in a similar way to preserve the integrity of physical smoke barriers e.g. floors and walls. They can also be found within air conditioning and ventilation ductwork.
Do smoke dampers require retaining angles?
In wood framed openings, course thread drywall screws with a minimum of 1″ penetration into the framing are required. Smoke only rated damper do not require the retaining angles to be attached to the smoke barrier but the retaining angles are to be attached to the damper sleeve as described above.
How long does it take to install a fire damper?
Refer to figures 1, 2 and 3 for details of opening preparation and fire damper installations in wood stud and steel stud 1 hr. and 2 hr.
Do I need a fire damper in a 1 hour rated wall?
Q: Are fire dampers required in one-hour fire-rated walls if the facility is fully sprinkled? A: According to NFPA 90A (1999 edition), one-hour fire-rated barriers do not require fire dampers in fully ducted HVAC systems, unless the one-hour fire-rated barrier is a vertical shaft.
Are smoke dampers required in a 1 hour wall?
Do fire smoke dampers require smoke detectors?
Duct smoke detectors will not be required at each fire smoke damper where the supply fan shall shut down and all the fire smoke dampers associated with the supply system automatically close upon actuation of an automatic alarm initiating device on the floor(s).
Can a fire damper Be installation out of wall?
Only 1-1/2 Hour rated dampers can be used in an Out-of-Wall Installation.
Do you fire caulk around fire dampers?
the application of firestopping caulk in the annular space surrounding a fire or fire/smoke damper is not required. However, if the Authority Having Jurisdiction (AHJ) or the installation warrants firestopping in place of “standard” retaining angles, the optional firestop caulk provides the solution.
Do fire dampers need emergency power?
Motorized actuators are normally used for the operation of smoke dampers. The designer must consider the case where there is loss of normal power to the damper actuator. Either emergency power should be provided or smoke dampers should be arranged for fail-safe closure upon failure of power to the actuator.
Do fire smoke dampers require emergency power?
Does a fire damper need to be in a wall?
Generally, fire dampers are required where air ducts penetrate walls that are rated for 2-hours or more. They are needed in all air transfer openings (non-ducted) in rated walls, regardless of the rating. And they are required at some, but not all penetrations of rated floor assemblies and shaft enclosures.
How often should fire dampers be replaced?
one year
It states that all fire dampers should meet the criteria of fire resistance for a stated period of time and that: “All fire dampers should be tested by a competent person at regular intervals not exceeding one year, and to be repaired or replaced immediately if found to be faulty.
What is the maximum installation distance in inches of a smoke damper from a smoke barrier?
24 in.
Location: Smoke dampers are for use in or adjacent to smoke barriers. They must be installed no more than 24 in. from the smoke barrier. Of course, smoke dampers that are used to iso- late air handlers are not limited to this distance requirement.
Who is the party responsible for the proper installation of the life safety dampers?
UL-Listed IOM Requirements Each manufacturer has their life safety dampers tested and provide IOMs for proper installation, operation, a maintenance. This is documented specifically for each life safety product and needs to be adhered to by the engineer, contractor, AHJ, and building owner.