ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 11

Visual inspection of life-safety dampers requires
that ceiling membranes be breached, which has the
potential to expose building occupants to dangerous
airborne microbes. Additionally, it presents possible
hazards to maintenance technicians, who need to
climb on ladders to reach what may be difﬁcult-toaccess devices. Phovoir/Shutterstock
conﬁrms the damper is in the normal operating position according to the system design (typically, the fully
open position).
2) The damper is commanded to the position opposite the
normal operating position and the position-indication
device conﬁrms the damper has reached that position
(typically, the fully closed position).
3) The damper is commanded back to the normal operating
position and the position-indication device conﬁrms
the damper has reached that position (typically, the
fully open position).
If a remote test fails to comply with steps 1-3, a visual
inspection is to be conducted.

Damper Position-Indication Devices
There are several ways to conﬁrm that a life-safety damper
has reached its open and closed positions. One is to connect
the position-indication device directly to a damper blade
The 2016 editions of NFPA 80 and NFPA 105 require visual

by way of linkage (Photo 1). This often is referred to as

conﬁrmation of a damper's ability to fully open and close.

positive blade indication. The damper blade moves the

The 2019 editions of NFPA 80 and NFPA 105 retain visual

linkage as the actuator operates the damper. Once the

inspection as the standard while introducing the option

damper reaches the open position, the linkage "trips"

of remote testing.

an electromechanical switch that is used by the building

Three preconditions must be met before remote testing
can be utilized:
■

automation system, ﬁre-alarm panel, or other system to
conﬁrm the damper is open. When electrical power-or,

A damper must be capable of indicating (via factorysupplied position-indication device) when it is fully open
and when it is fully closed.

■

The initial remote test must include a visual inspection
in accordance with NFPA 80 and NFPA 105. Often, this
visual inspection takes place during acceptance testing.

■

The visual inspection must conﬁrm that the position-indication method used for remote testing accurately reﬂects
the fully open and fully closed position of the damper.
Once these preconditions have been met, required

periodic testing may be conducted remotely. The procedure is as follows:
1) A signal from the damper's position-indication device

w w w. a m c a .o r g

PHOTO 1. Damper position-indication device with
linkage connected directly to a damper blade.

20 19 A M CA i n m o t i o n

11

http://www.amca.org

ASHRAE Journal Supplement - AMCA InMotion - September 2019

Table of Contents for the Digital Edition of ASHRAE Journal Supplement - AMCA InMotion - September 2019

Contents
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - BB1
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - BB2
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - Cover1
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - Cover2
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - Contents
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 2
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 3
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 4
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 5
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 6
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 7
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 8
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 9
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 10
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 11
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 12
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 13
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 14
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 15
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 16
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 17
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 18
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 19
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 20
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 21
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 22
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 23
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 24
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 25
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 26
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 27
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 28
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 29
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 30
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 31
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 32
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 33
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 34
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 35
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 36
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 37
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 38
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 39
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 40
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 41
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 42
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 43
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - 44
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - Cover3
ASHRAE Journal Supplement - AMCA InMotion - September 2019 - Cover4
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