
Notification Appliances—SS12/24ADA Series Strobes and MASS12/24ADA Series Sounder/Strobes 3
Introduction
This document contains important information about installing and
operating SS12/24ADA series strobes and MASS12/24ADA series
sounder/strobes. These strobes and sounder/strobes are manufactured by
System Sensor for use with Johnson Controls systems. The strobes are
UL 1971 Listed for signaling devices for the hearing impaired. The
strobes were tested by UL and those models that produce 75 candela (cd)
meet the Americans with Disabilities Act (ADA) requirements of 75 cd of
light output on axis.
These instructions apply to the SS12/24ADA series strobes and
MASS12/24ADA series sounder/strobes for mounting, wiring, and
installation. Follow only those instructions that apply to the model you
are installing. If you install this strobe for someone else to use, you must
leave a copy of this document with the user.
Before you install any SS12/24ADA series strobes and MASS12/24ADA
series sounder/strobes, read and be familiar with:
●applicable National Fire Protection Association (NFPA) standards,
local codes, and the requirements of the authority having jurisdiction.
●or, for non-United States installations, applicable codes and standards
specific to the country and locality of installation.
Failure to follow these directions may result in failure of the device to
report an alarm or trouble condition. Johnson Controls is not responsible
for devices that have been improperly installed, tested, or maintained by
others.
!
CAUTION: Equipment hazard. Do not use in potentially
explosive atmospheres. Do not leave unused
wires exposed.
The Multi-Alertsounder and signaling strobe are compatible with DC
line supervision and are intended to be connected to the alarm Notification
Appliance Circuit (NAC) of a UL Listed Fire Alarm Control Panel
(FACP). The strobes and sounder/strobes operate on full-wave rectified,
filtered, regulated DC voltages as well as unfiltered, unregulated DC for
power supplies UL Listed for fire alarm applications.
The strobes produce one flash per second (nominal) with continuous
nominal voltage applied.
General
Description