ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 17
to ensure correct installation and proper operation. If
a fi re damper has a heat-responsive device requiring
an actuator, it, too, must be shipped with an actuator
factory-installed.
PHOTO E. Mounting angles. Photograph courtesy of TAMCO
Can I change an actuator from 24 V to 120 V in
the fi eld? Yes. Any modifi cation of an actuator in the
fi eld should be performed in accordance with the damper
manufacturer's guidelines and reviewed by the local AHJ
or the damper manufacturer. Keep in mind this is outside
the scope of UL's certifi cation approval.
What if the actuator on my fi re, smoke, or combination
fi re/smoke damper no longer operates?
NFPA 80, Standard for Fire Doors
and Other Opening Protectives,
and NFPA 105, Standard for Smoke
Door Assemblies and Other Opening
Protectives, require any nonfunctioning
damper to be repaired as
soon as possible. Nonfunctioning
actuators need to be replaced per
the damper manufacturer's guidelines.
If a direct replacement for a
nonfunctioning actuator is not available,
contact the damper manufacturer
or the actuator manufacturer.
Can a fi re, smoke, or combination
fi re/smoke damper be
shipped without an actuator?
UL 555, Fire Dampers, and UL 555S
require smoke and combination
fi re/smoke dampers to be shipped
with factory-supplied actuators
www.amca.org
How far can a fi re damper protrude from a wall
or fl oor? A standard 1.5-hour or 3-hour fi re or combination
fi re/smoke damper must be installed with the
centerline of the blades in the closed position within the
plane of a wall or fl oor. Some manufacturers, however,
have approved dampers that may be installed with the
blades in the closed position outside the plane of a wall
or fl oor. The maximum distance varies by manufacturer.
Dampers for out-of-wall/fl oor applications have to be
ordered from the factory and may require special accessories
for installation.
How much larger does the opening in a wall or
fl oor for a fi re or combination fi re/smoke damper
need to be? The standard opening is larger by 1/8
in. (3.2 mm) per linear foot of the height and width of a
damper. Damper manufacturers have optional instructions
allowing larger openings.
Fire-alarm/smoke-control-system connection to a combination fi re/smoke
damper. Photograph courtesy of Fire Safety First
2022 AMCA inmot ion
17
http://www.amca.org
ASHRAE Journal Supplement - AMCA InMotion - November 2022
Table of Contents for the Digital Edition of ASHRAE Journal Supplement - AMCA InMotion - November 2022
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - CT1
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - CT2
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - Cover1
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - Cover2
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 1
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 2
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 3
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 4
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 5
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ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 8
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 9
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 10
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 11
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 12
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 13
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 14
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 15
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 16
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 17
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 18
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ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 20
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 21
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 22
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ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 24
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ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 26
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ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 30
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 31
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ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 33
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 34
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 35
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ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 38
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ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 42
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 43
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - 44
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - Cover3
ASHRAE Journal Supplement - AMCA InMotion - November 2022 - Cover4
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