ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 24

2 in. wg
BHP

3 in. wg
FEI

RPM

BHP

operation, maintenance and testing
requirements: Chapter 6 of NFPA 1052010, Standard for Smoke Door Assemblies
a n d
O t h e r
O p e n i n g
Protectives, and Chapter 19 of NFPA
80-2010, Standard for Fire Doors and
Other Opening Protectives. Together,
these standards cover operational testing
and inspection immediately after installation; periodic inspection and testing;
and maintenance of smoke dampers, fire
dampers, and combination fire/smoke
dampers. They also include requirements
for documentation of inspection, testing
and maintenance.
As with any building system, inspection
and maintenance of components is essential for proper operation. This is especially
Figure 4: An out-of-the-wall/partition fire damper installed on a two-hourtrue of a fire/life-safety system. NFPA
rated steel/gypsum firewall. Image courtesy of United Enertech.
105 requires each damper to be tested a
UL 555S, as well as application requirements as described year after installation and every four years after that. (An
above. They are used in HVAC penetrations where a wall, exception is made for hospitals, whose systems can be tested
floor or ceiling is required to have both a fire damper and at six-year intervals.) The code also states that the damper
smoke damper. They close upon the detection of heat (via shall be actuated and cycled. Inspections must be documented,
duct temperature) or smoke (via a smoke detector) and protect indicating the location of the damper, date of inspection,
the opening. Unlike regular fire dampers, however, combina- name of inspector and deficiencies discovered. NFPA 80 has
tion fire/smoke dampers are equipped with electric heat identical requirements for fire and combination fire/smoke
response devices, which are regarded as superior to fusible dampers.
links. The electric response devices are resettable and allow
the damper's actuator to close in a controlled manner rather CONCLUSION
than slamming closed, which causes pressure problems in The use, proper installation and maintenance of fire, smoke
the HVAC system.
and combination fire/smoke dampers in sprinklered or nonModels equipped with airfoil blades perform better (mean- sprinklered buildings is a vital part of a properly designed
ing they produce lower pressure drop) than those with life-safety system. When fire emergencies happen, dampers
crimped/3V blades. Less pressure drop in a system means will help contain the fire and resulting smoke to the compartenergy savings. System designers should select products with ment of origin. They minimize life and property loss while
third-party-certified performance, and one such third party helping firefighters to extinguish the blaze.
is AMCA. See the damper manufacturer's installation instructions for approved options such as locations, sleeve attachments REFERENCES
1. AMCA Publication 503. Fire, Ceiling (Radiation), Smoke
and sealing.
and Fire/Smoke Dampers Application Manual. Arlington
STANDARDS WITH POST-INSTALLATION GUIDANCE
Hts., IL: AMCA, 2008.
When designing damper systems for fire and smoke protec2. UL 555S. Standard for Smoke Dampers. Northbrook,
tion, engineers need to consider how they will be inspected
IL: UL, 2014.
and maintained over the many years they will be protecting
3. UL 555. Standard for Fire Dampers. Northbrook, IL: UL,
the inhabitants of the building. Two standards published by
2006.
the National Fire Protection Association (NFPA) provide
24

Fall 2017

A M C A I N T E R NAT I O NA L

inmotion

W W W. A M C A . O R G

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http://WWW.AMCA.ORG

Table of Contents for the Digital Edition of ASHRAE Journal Supplement - AMCA inmotion - Fall 2017

Contents
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - BB1
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - BB2
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - Cover1
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - Cover2
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - Contents
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 2
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 3
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 4
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 5
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 6
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 7
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 8
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 9
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 10
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 11
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 12
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 13
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 14
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 15
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 16
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 17
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 18
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 19
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 20
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 21
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 22
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 23
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 24
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 25
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 26
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 27
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 28
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 29
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 30
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 31
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 32
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 33
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 34
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 35
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - 36
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - Cover3
ASHRAE Journal Supplement - AMCA inmotion - Fall 2017 - Cover4
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