CAT. SC9120B
SMOKE & CO
COMBO ALARM
CAT.
SC9120B
SEPARATE SMOKE & CO
Combination alarm detects both
dangers and eliminates the need for
two electrical boxes.
DUAL IONIZATION
Dual Ionization sensing chamber.
Generally more effective at detecting
small particles produced by flaming
fires. Sources may include paper or
kitchen grease.
LATCHING ALARM INDICATOR
Remembers which unit initiated an
alarm.
INTELLEGENT SENSING
TECHNOLOGY
Microprocessor controlled to reduce
the number nuisance alarms.
SINGLE BUTTON TEST/SILENCE
One touch button combines both
features
TWO LOCKING FEATURES
Pins are provided to lock battery
drawer and/ or alarm to base. Great
for apartment, dormitory or hotel
applications where unauthorized
removal of battery or alarm is not
desired.
120V AC/DC, 60Hz
Wire-in with 9V Battery Backup
Description:
The BRK Brands, Inc. Cat. No SC9120B is a wire-in, 120 VAC 60Hz single and / or
multiple station smoke and carbon monoxide alarm specifically designed for
residential and institutional applications including sleeping rooms of hospitals, hotels,
motels, dormitories and other multi-family dwellings as defined in standard NFPA 101
Model SC9120B complies with UL217, UL2034, CSFM, NFPA 72, NFPA 720, HUD, FHA
and other agencies that model their codes after the above agencies. They meet building
codes where AC/DC smoke and carbon monoxide alarms are required either separately
or in combination. The alarms are interconnectable up to 18 devices, of which 12 can be
smoke alarms.
The BRK® SC9120B features a dual ionization smoke sensing chamber - screened for
insect protection and a carbon monoxide sensor, an 85dB horn, 9V battery back-up and
a “silence” feature. The “Intelligent SensingTechnology” system is designed to reduce
nuisance alarms. “Latching Alarm Indication” remembers which unit initiated an alarm. When
interconnected in a series, the unit that triggered the alarm rapidly flashes its red
LED indicator. After the alarm condition subsides, the initiating unit will store in memory or
“latch” the information and begin to flash the Red LED indicator 2 seconds on, 2 seconds
off. The “Perfect Mount” system features a gasketless base and a mounting bracket that
keeps the alarm secure over a wide rotation range to allow for true alignment. This will allow
fine-tuning on the positioning to compensate for out of aligned wall studs and to keep
the wording level when wall mounting. A Single button test/silence button eliminates
confusion. Depending on what mode the alarm is in, pushing the button will test, silence,
re-test the alarm when in silence and clear the latching feature. Battery installation and removal
can occur while the unit is mounted to the ceiling or wall via the side load battery
compartment. Other Contractor Preferred features include a dust cover to keep alarm
clean during construction, keyhole slots in the
mounting bracket eliminate the need to remove the
electrical box screws for installation. Two
locking features are provided to prevent
battery theft and/or theft of the unit. Connection to AC power is made with a
“Quick-Connect” wiring harness.
Installation is quick, easy and
cost effective.
CAT.
SC9120B
TECHNICAL SPECS:
Alarm Dimensions:
FRONT
VIEW
SIDE
VIEW
MOUNTING
BRACKET
5.58"
1.97"
ARCHITECTURAL AND ENGINEERING SPEC
The combination smoke & carbon monoxide alarm shall be BRK Electronics Model
SC9120B and shall provide at a minimum the following features and functions:
1. A permanently installed carbon monoxide sensor and a dual ionization
smoke sensor.
2. Powered by 120V AC, 60Hz and have a monitored 9V battery backup. In battery
backup mode, the battery must last for 8 hours minimum in standby and then
12 hours minimum in alarm.
3. A visual LED (green) power-on indicator to confirm unit is receiving AC power
and a (green intermittent) indicator to confirm unit has switched to battery
backup mode. A red LED to indicate when in smoke alarm and another red LED
to indicate when in CO alarm.
4. The CO sensor is adjusted not to detect CO levels below 30 PPM and will not
alarm when exposed to constant levels of 30 PPM for 30 days. It will alarm
at the following levels: 400 PPM CO between 4 and 15 minutes, 150 PPM CO
between 10 and 50 minutes and 70 PPM CO between 60 and 240 minutes.
5. A test/silence button to check all alarm functions and to silence any nuisance
alarms. In addition, the unit shall have a low battery silence feature to quiet the
low battery chirp for up to eight hours.
6. The unit shall perform self diagnostic tests every second and issue a
malfunction warning (three rapid chirps) if the unit malfunctions.
7. A solid state piezo horn rated at 85dB at 10 feet that provides a repeating
horn pattern. Smoke Alarm: 3 beeps, pause, 3 beeps, pause; CO Alarm: 4 rapid
beeps, pause, 4 rapid beeps, pause.
8. The unit shall be capable of operating between 40 degrees F (4 degrees C) and
100 degrees F (38 degrees C) and relative humidity between 10% and 95%.
9. The unit shall center mount to any standard electrical junction box up to 4 inch
diagonal without screw removal. Larger boxes may require an adapter plate.
10. The unit shall have an optional locking mechanism to deter theft of battery
and/or theft of the unit.
11. The unit shall have a plug in connector and be capable of interconnection of
up to 18 alarms.
12. The unit shall have a gasketless base for easy installation and be capable
of keeping alarm secure over a wide rotation range to allow for true
alarm alignment.
13. The unit shall at a minimum meet the requirements of UL217 and UL2034,
CSFM, NFPA 72 and 720 and the ICC.
I N S TA L L AT I O N O F A L A R M
Installation of this alarm must conform to all national and local codes and Article
760 of the National Electrical Code. Interconnected units must meet the following requirements: Total length of wire interconnecting units should be less than
1000 feet, be #18 gauge or larger and be rated at least 300V. It is recommended
that all units be on the same fuse or circuit breaker. If local codes do not permit,
be sure the neutral wire is common to both phases. Only those BRK Electronics
catalog numbers listed in the “Technical Specs” section under “Interconnection”
may be connected to these smoke alarms.
5.58" dia x 1.97"H
Weight:
8.5 oz
Operating Voltage:
120V AC 60Hz pure sine wave w/9V battery
backup
Operating Current:
.09 amps (standby/alarm)
Temperature Range:
40 degrees F (4 degrees C) to 100 degrees F
(38 degrees C)
Humidity Range:
10% to 95% relative humidity (RH)
Audio Alarm:
85dB at 10 feet
Test/Silence:
Electronically simulates a smoke or carbon monoxide condition, causing the unit to alarm.
Alarm Reset:
Automatic when Smoke and/or CO clears
Press test/silence button to reset manually.
Interconnections:
(see user’s manual).
Smoke Sensor:
Dual Ionization CO Sensor Metal Oxide
Indicator Lights:
AC Power:
Constant Green LED
DC Power:
Intermittent Green LED
Local Alarm:
Red LED flashes rapidly
Remote Alarm:
Red LED out Latching Alarm: Red LED flashes
every 5 seconds after local alarm stops
Listing:
UL217 & UL 2034 Standards
SHIPPING SPECS:
Individual Carton Dimensions:
5.69"L x 2.25"W x 5.59"H
Weight:
.63 lbs.
Cube:
.041 ft3
UPC:
0 29054 51306 9
Master Carton Dimensions:
14.43"L X 6.19"W X 12.63"H
Master Pack:
12
Weight:
8.14 lbs.
Cube:
.65 ft3
I2of5:
100 29054 51306 6
Pallet Information:
Cases per Layer:
19
Number of Layers:
3
Cases per Pallet:
57
Cube:
42.2 ft3
Weight:
464 lbs.
©2008 BRK Brands, Inc.
a Jarden Corporation company (NYSE:JAH)
3901 Liberty Street Rd., Aurora IL 60504-8122
All rights reserved. 3901 Liberty Street Road
BRK® is a registered trademark of BRK Brands, Inc.
brkelectronics.com
CM2865
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