Advertisement
ceiling
acceptable here
never here
top of detector
acceptable here
Note
Measurements shown are to the
closest edge of the detector.
Figure 2. Detector Placement
Are More Smoke Alarms Desirable?
The required number of smoke alarms might not provide reliable
early warning protection for those areas separated by a door
from the areas protected by the required smoke alarms. For this
reason, it is recommended that the householder consider the use
of additional smoke alarms for those areas for increased
protection. The additional areas include the basement, bed-
rooms, dining room, furnace room, utility room, and hallways
not protected by the required smoke alarms. The installation of
smoke alarms in kitchens, attics (finished or unfinished), or
garages is not normally recommended, as these locations
occasionally experience conditions that can result in improper
operation.
Important !
Regulations pertaining to smoke detector
installations vary from state to state. For more
information, contact your local fire department
or local authority having jurisdiction.
In addition to NFPA 72, use the following location guidelines to
optimize performance and reduce the chance of false alarms:
• Locate ceiling-mounted smoke detectors in the center of a
room or hallway at least 4 inches (10cm) from any walls or
partitions.
• Locate wall-mounted smoke detectors so the top of the alarm
is 4 to 12 inches (10 to 30cm) below the ceiling. See Figure 2.
• When more than one detector is required, spacing of 30 feet
(9m) may be used as a guide on smooth ceilings. Other
spacing may be used depending on ceiling height, high air
movement, and other conditions or response requirements.
• Locate in a suitable environment as follows:
- Temperature between 32°F (0°C) and 100°F (38°C)
- Humidity between 0 and 95% non-condensing
• Locate away from air conditioners, heating registers and any
other ventilation source that may interfere with smoke
entering the detector.
• Locate away from kitchens, wood stoves, garages, furnaces,
and bathrooms.
• Mount smoke detectors on a firm permanent surface,
typically a stud or metal runner.
2
4"
(10cm)
4"
(10cm)
12"
(30cm)
maximum
side wall
Figure 3. Plug-in Terminal Block
Note
For instructions on removal of terminal block and
circuit board, call technical services at 800-648-7424.
test switch
mounting
all boxes
Figure 4. Detector Mounting
Installation
The detectors mount to standard single-gang electrical boxes,
four-inch octagonal or four-inch square electrical boxes, or on
WIREMOLD No. 5739 fixture boxes. The detectors may also be
mounted directly to walls or ceilings where local codes/
jurisdictions permit.
1. Pull wire through the electrical box and connect to the plug-in
terminal block supplied, one wire per terminal. See Figures 3
and 5.
2. Dress wiring neatly and snap the terminal block into the back
of the detector.
Note
The detector cover must be closed completely, to sup-
port the circuit board, while installing the terminal
block.
3. Open the cover and mount the detector, using the mounting
holes provided. See Figure 4.
Note
Positive air pressure from wire openings, conduit,
mounting boxes, irregular mounting surfaces, or
plenums causing air movement through and away from
the detector may prevent proper operation. Seal all
openings causing unwanted air flow using UL Listed
expanding foam or Duxseal.
4. Remove the red plastic dust cover from the detector. The
detectors are shipped with a dust cover for protection on
construction sites with dusty environments.
4" square or
WIREMOLD mounting
(No. 5739)
single gang
4" octagon
mounting
cover release
ESL 429/449
Hide quick links:
Advertisement
