Sentrol ZX400 Installation Manual - page 31
31
Testing
This system should be tested weekly. All switches,
contacts, and accessories must be UL Listed devices.
This equipment should be installed in accordance
with the National Fire Protection Association Stan-
dard No. 72 (National Fire Protection Association,
Batterymarch Park, Quincy MA 02269). Control
panel specifications are subject to change without
notice.
CEILING
SIDE W
ALL
Acceptable Here
Never Here
Top of Detector
Acceptable Here
4 in.(0.1m) Minimum
12 in.(0.3m) Maximum
NOTE: All measurements are to
the closest edge of the detector
4 in.(0.1m) Minimum
Consult smoke detector specifications and local and national
codes for coverage descriptions.
Bedroom
Bedroom
Hall
Dining
Living
Basement
A smoke detector should be located
on each story.
Basement
Living
Bedroom
Bedroom
Hall
Recreation
Indicates required smoke detector
Indicates smoke detector is optional
if door is not provided between living
and recreational rooms.
Indicates smoke detector
required in new construction.
Bedroom
TV
Room
Dining
Kitchen
Bedroom
Bedroom
Living
In family living units with more than one sleeping
area, a smoke detector should be provided to
protect each sleeping area in addition to the
detectors required in bedrooms.
The National Fire and Burglar Alarm Association
(NFPA) has established rules to follow pertaining to
fire prevention and the installation of fire detection
equipment.
Smoke Detector Locations
For residential applications, install smoke detectors
in each bedroom and outside each separate sleep-
ing area in the immediate vicinity of the bedrooms
and on each additional story of the family living unit
including basement and excluding crawl spaces and
unfinished attics. In new construction, a smoke de-
tector should also be installed in each sleeping area.
For family living units with one or more split levels
(i.e.: adjacent levels with less than one full story sepa-
ration between levels), a smoke detector required
by the above is sufficient for an adjacent lower level,
including basements. EXCEPTION: Where there is
an intervening door between one level and the ad-
jacent lower level, install a smoke detection on the
lower level. For commercial applications, install
smoke detectors in each separate work area, includ-
ing hallways and storage areas.
Install ceiling-mounted smoke detectors in the cen-
ter of the room or hall, not less than 4 inches from
any wall. When mounting the detector on a wall,
place the top of the detector 4 to 12 inches from
the ceiling.
Do not install smoke detectors where normal ambi-
ent temperatures are above 100
˚
F. (37.8
˚
C.)
Do not position smoke detectors in front of air con-
ditioners, heating registers, ceiling fans, or other lo-
cations where normal air circulation will keep smoke
from entering the detector.
Heat from a fire rises to the ceiling, spreads out across
the ceiling surface and begins to bank down from
the ceiling. Corners where the ceiling and walls meet
create air spaces in to which heat has difficulty pen-
etrating. Usually, these dead air spaces measure
about four (4) inches (0.1m) along the ceiling from
the corner and four (4) inches (0.1m) down the wall.
Do not place heat or smoke detectors in these dead
air spaces.
NFPA RULES
National Fire Protection Association (NFPA) Rules
FIGURE 20 Smoke Detector Placement