2 I56-2012-
007
Figure 2: Recommended smoke alarm protection for single-floor
residence with more than one sleeping area:
BEDROOM
SMOKE ALARMS FOR
MINIMUM PROTECTION
SMOKE ALARMS FOR
MORE PROTECTION AND
REQUIRED IN NEW CONSTRUCTION
BEDROOM
BEDROOM
LIVING ROOM
DINING
ROOM
KITCHEN
FAMILY ROOM
NFPA 72, Chapter 2, Section 2-2.1.1.1 states as follows: “Smoke
alarms
shall be installed outside of each separate sleeping area in the immediate
vicinity of the bedrooms and on each additional story of the family living
unit, including basements and excluding crawl spaces and unfinished
attics. In new construction, a smoke-alarm also shall be installed in each
sleeping room.”
The above NFPA standard is a minimum requirement for smoke
alarm
installation.
For better protection, we also require the installation of a
smoke
alarm inside every bedroom in existing construction.
• Install a minimum of two smoke alarms in any household, no matter
how small it is.
• Put a smoke alarm in the hallway outside of every separate bedroom
area. (See Figure 1.) A minimum of two smoke alarms are required in
homes with two bedroom areas. (See Figure 2.)
• Put a smoke alarm on every level of a multi-level residence. (See
Figure 3.)
•
Install basement smoke alarms on the ceiling at the bottom of the
basement stairwell. (See Figure 3.)
Figure 3: Recommended smoke alarm protection for a multi-level
residence:
BEDROOM
BEDROOM BEDROOM
LIVING
ROOM
KITCHEN
BASEMENT
GARAGE
SMOKE ALARMS FOR MINIMUM PROTECTION
SMOKE ALARMS FOR MORE PROTECTION AND
REQUIRED IN NEW CONSTRUCTION
•
Install smoke alarms on the ceiling as close to the center of the room
as possible. If this is not practical, install it on the ceiling no closer
than 4 inches (10 cm) from any wall or corner. (See Figure 4.)
•
If wall-mounting is permitted by local and state codes, and ceiling
mounting is not practical, install smoke alarms on an inside wall
between 4 and 6 inches (10 and 15 cm) from the ceiling. (See Figure
4.)
Figure 4: Recommended smoke alarm mounting locations:
BEST LOCATION
ACCEPTABLE LOCATION
DEAD AIR
SPACE
BEST IN CENTER
OF CEILING
NO CLOSER THAN 4
" (10 cm)
FROM SIDE WALL
MOUNT ON WALL
AT LEAST 4
" (10 cm)
FROM CEILING
NO MORE
THAN 6
" (15 cm)
FROM CEILING
•
Put smoke alarms at both ends of a bedroom hallway if the hallway is
more than 30 feet (9 meters) long. In addition, large rooms will require
more than a single unit if the room is over 900 square feet.
•
Rooms or areas that do not have smooth ceilings, or which have
short, transom-type walls coming down from the ceiling require
additional smoke alarms.
•
Install second-floor smoke alarms on the ceiling at the top of the first-
to-second floor stairwell. Be sure no door or other obstruction blocks
the path of smoke to the unit.
•
In rooms with sloped, peaked, or gabled ceilings, install smoke alarms
3 feet (0.9 meter) measured down on the slant from the highest point
of the ceiling. See Figure 5.
Figure 5: Recommended smoke alarm location in rooms with sloped,
gabled or peaked ceilings:
HORIZONTAL
DISTANCE
FROM PEAK
3 FEET
(.9M)
Where Smoke Alarms Should NOT Be Installed
•
In or near areas where combustion particles are normally present
such as kitchens; in garages where there are particles of combustion
in vehicle exhausts; near furnaces, hot water heaters, or gas space
heaters. Install smoke alarms at least 20 feet (6 meters) away from
kitchens and other areas where combustion particles are normally
present.
•
On the ceiling in rooms next to kitchens where there is no transom
between the kitchen and these rooms. Instead, install the smoke
alarm on an inside wall, furthest from the kitchen (See Figure 6). Be
sure not to install smoke alarms within 4" of the ceiling or any corner
or more than 6" from the ceiling.
Figure 6: Recommended smoke alarm locations to avoid air streams
with combustion particles:
CORRECT
AIR RETURN
BEDROOM
BATH
BEDROOM
LIVING
ROOM
INCORRECT
KITCHEN
STOVE
AIR INLET
•
In damp or very humid areas, or next to bathrooms with showers.
The moisture in humid air can enter the sensing chamber as water
vapor, then cool and condense into droplets that cause a nuisance
alarm. Install smoke alarms at least 5 feet (1.5 meters) away from
bathrooms.
•
In very cold or very hot rooms or areas. Operating temperature of the
smoke alarm is 40°F to 100°F (4°C to 38°C).
•
In dusty, dirty, or insect-infested areas. Dust and dirt can build up on
the unit’s sensing chamber and make it overly sensitive, or can block
openings to the sensing chamber and keep the unit from sensing
smoke.
•
Near fresh air inlets or returns or excessively drafty areas. Air
conditioners,
heaters, fans, and fresh air intakes and returns can drive
smoke away
from smoke alarms, making the units less effective.
•
In dead air spaces at the top of a peaked ceiling or wall/ceiling
intersect.
Dead air may prevent smoke from reaching a unit.
•
Near fluorescent light fixtures. Install smoke alarms at least 10 feet (3
meters) away from such light fixtures.
Installation Requirements
Warning: Electrical Shock Hazard.
Turn off power at the main fuse box
or circuit breaker to the area of unit installation before beginning installation
procedures.
•
Mount unit to a 4-inch octagonal junction box only. Mount the 12 Volt
D.C. power supply to a 4" square junction box 2-1/8" deep only. (If
necessary, add an extension ring if the selected box does not have
adequate volume.) The power supply may be mounted remotely from
the unit.
•
All wiring must be performed by a licensed electrician and installed in
compliance with the Canadian Electrical Code, applicable local codes,
and any special requirements of the local authority having jurisdiction.
•
Use only the specified wire gauge. Maximum interconnect bus length
is 5,000 feet, #14 – 22 AWG cable.
•
The smoke
alarm includes a tamper-resist feature that, when
activated,
requires a tool for smoke
alarm removal. The following
smoke alarm
installation instructions include how to activate this
feature instructions
include how to activate this feature.
3 I56-2012-
007
Installation Instructions
1. Turn off power at main service panel.
2. Using wire connectors, attach either
black
wire from power supply to
black AC
power wire. Attach other
black
wire from power supply to
white AC
neutral wire.
3. Using wire connectors, connect
red
and
gray
power supply output
wires to the bus line wires supplying power to the remote smoke
alarms. (See Figure 7.) Use color-coded bus wires.
4. Mount power supply to junction box and cover junction box with a 4"
square box cover, using box mounting screws.
5. Install a junction box where you plan to install the unit. (See type and
size for junction box above.)
6. Install bus line wires from power supply output to junction box. Use
#14-18 AWG wire only. See Figure 7 to determine maximum power
bus length for wire size and number of interconnected smoke alarms.
7. Connect color-coded DC power bus wires to power input screw
terminals, located on unit back. If smoke alarms will be interconnected
or the relay used, see following sections for specific installation
instructions.
8. Remove unit from mounting bracket by turning the unit counter-
clockwise and pulling the unit away from the bracket.
9. Remove small tab on mounting bracket to activate tamper-resist
feature, if desired. (To release a unit with this feature, push up on
locking tab with screwdriver while turning unit counterclockwise.)
10. Install mounting bracket to junction box.
11. Connect power wires to unit(s) as shown in Figure 7. Be sure to
tighten each terminal screw to secure wire in place. Tug wire to be
sure it is connected properly.
12. Attach smoke alarm to mounting bracket by aligning arrows on side
of
mounting bracket 1-inch to the right of the nib on the unit. Rotate
until
the arrow and nib line up. (See Figure 8).
13. After installing all smoke alarms, turn on power at the main service
panel.
14. Check for the green LED to flash about once every 30 to 40 seconds.
This means the unit is receiving power. Check all smoke alarms.
Note:
If the LED does not flash, power is not getting to the smoke
alarm. Check wiring. If LED still does not flash, return the
smoke alarm to the manufacturer for repair.
15.
Test each unit in the system. (See “Testing” below for more detailed
instructions.)
Figure 8:
Figure 7:
INTERCONNECT
SIGRLY GND SIGSND
- +
POWER INPUT
REL
AY
NC C NO
DC POWER SUPPLY
MAX. 30V DC, 100VA
(-)
(+)
Black
White
120VAC
INTERCONNECT UP TO
12 SMOKE ALARMS
SIGSND MODE
INTERCONNECT
SIGRLY GND SIGSND
- +
POWER INPUT
REL
AY
NC C NO
- +
POWER INPUT
REL
AY
NC C NO
INTERCONNECT
SIGRLY GND SIGSND
INTERCONNECT
SIGRLY GND SIGSND
- +
POWER INPUT
REL
AY
NC C NO
DC POWER SUPPLY
MAX. 30V DC, 100VA
(-)
(+)
Black
White
120VAC
INTERCONNECT UP TO
12 SMOKE ALARMS
SIGRLY MODE
INTERCONNECT
SIGRLY GND SIGSND
- +
POWER INPUT
REL
AY
NC C NO
- +
POWER INPUT
REL
AY
NC C NO
INTERCONNECT
SIGRLY GND SIGSND
Maximum power bus length in feet, given number of units (maximum per bus) and wire gauge(AWG)
Supply Voltage = 12VDC
Wire Gauge 1 Unit
2 Units
3 Units
4 Units
5 Units
6 Units
7 Units
8 Units
9 Units
10 Units
11 Units
12 Units
14
13587
6795
4529
3397
2718
2266
1941
1699
1510
1358
1234
1134
16
8505
4254
2835
2126
1701
1419
1216
1064
945
852
772
705
18
5360
2679
1787
1339
1071
894
765
670
595
537
488
443
20
3383
1692
1127
847
677
565
483
422
376
338
308
282
22
2114
1057
705
527
422
352
301
264
236
212
191
175
For 24VDC supply voltage, the maximum power bus length is 4 times as long as 12VDC supply voltage.
Maximum interconnect bus length: 5000 FT, No. 14-22AWG cable
All wiring must conform to local electrical codes.
Remove
Mounting Bracket
Install
W
hen
I
nstalling
:
A
lign
arrows
on
mounting
bracket
1"
to
the
right
of
the
nib
on
the
smoke
alarm
.
Rotate
until
arrow
and
nib
l
i
ne
up
.
