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Gentex 7000 Series Installation Instructions Manual page 4

7000 series photoelectric type single station/multi-station smoke alarms/ac powered, 120vac, 60hz or 220vac, 50/60hz

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Figure 6
Figure 6: RECOMMENDED SMOKE ALARM LOCATION IN ROOMS
WITH SLOPED, GABLED, OR PEAKED CEILINGS.
The placement of the smoke alarm is critical if maximum speed of
fire detection is desired. Thus, a logical location for a smoke alarm is
the center of the ceiling. At this location, the device is closest to all
areas of the room.
WHERE SMOKE ALARMS SHOULD BE INSTALLED
IN MOBILE HOMES
In mobile homes built after about 1978 that were designed and
insulated to be energy-efficient, smoke alarms should be installed as
described in the section above. In older mobile homes that have little
or no insulation compared to today's standards, uninsulated metal out-
side walls and roofs can transfer heat and cold from outdoors, making
the air right next to them hotter or colder than the rest of the inside
air. These layers of hotter or colder air can prevent smoke from
reaching a smoke alarm. Therefore, install smoke alarms in such
units only on inside walls, not more than 12 inches (10 and 30 cm)
from the ceiling. If you are not sure about the insulation level in your
mobile home, or if you notice that the walls or ceiling are unusually
hot or cold, install the unit on an inside wall.
Minimum protection requires one smoke alarm as close to the
sleeping area as possible. For better protection, install one smoke
alarm in each room, but first read the "Locations to Avoid."
LOCATIONS TO AVOID
Nuisance alarms are caused by placing smoke alarms where they
will not operate properly. To avoid nuisance alarms, do not place
smoke alarms:
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.
In air streams passing by kitchens. Figure 7 shows how a
smoke alarm can be exposed to combustion particles in normal air
movement paths, and how to correct this situation.
Figure 7
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 10 feet (3 meters) away from
bathrooms.
In very cold or very hot environments, or in unheated buildings
or outdoor rooms, where the temperature can go below or above the
operating range of the unit. Temperature limits for proper operation
are 40° to 100°F (4.4° to 37.8°C).
In very dusty or dirty areas. Dust and dirt can build up on the
smoke alarm's sensing chamber and can make it overly sensitive, or
block openings to the sensing chamber and keep the smoke alarm
from sensing smoke.
Near fresh air inlets, returns or excessively drafty areas. Air
conditioners, heaters, fans, and fresh air intakes and returns can drive
smoke away from smoke alarms, making the device less effective.
In dead air spaces at the top of a peaked roof or in the corners
between ceilings and walls. Dead air may prevent smoke from
reaching a smoke alarm. See Figures 5 and 6 for recommended
mounting locations.
In insect-infested areas. If insects enter a smoke alarm's
sensing chamber, they may cause a nuisance alarm. Get rid of the
bugs before installing smoke alarms where bugs are a problem.
Near fluorescent light fixtures. Electrical "noise" from nearby
fluorescent light fixtures may cause a nuisance alarm. Install
smoke alarms and fluorescent lights on seperate electrical
circuits.
WARNING! Never remove power to an AC smoke alarm to silence
a nuisance alarm. Open a window or fan the air around the smoke
alarm to remove the smoke. The device will automatically turn off
when the smoke in the air is completely gone. Do not stand close to
the smoke alarm. The sound produced by the smoke alarm is loud
because it is designed to awaken you in an emergency. Prolonged
exposure to the horn at a close distance may be harmful to your
hearing.
INSTALLATION 7000 SERIES
CAUTION: New Construction: DO NOT attach smoke alarm head
until AFTER sanding, insulation, painting, and other dust creating
situations are finished and cleaned up.
WIRING/GENERAL
1. Use ANSI/UL Listed cable with Class 1 insulation.
2. Observe local code requirements. Use box connector to anchor
cable to outlet box.
3. Metal outlet boxes must be grounded to earth ground.
CAUTION: Turn off electricity to prevent SHOCK and damage to
smoke alarm. Be sure the power line to the smoke alarm is not
controlled by any on/off switch, or other type of switch, other than a
fuse or circuit breaker.
IMPORTANT: Insure that all fluorescent lighting fixtures are
properly grounded.
NOTICE: Smoke alarm installation must conform to the electrical
codes in your area and to Article 760 of the U.S. National Electrical
Code. Wire installation should be performed only by a licensed
electrician.
MOUNTING OUTLET BOX
Use a 2" x 3" switch box or a 4" square or octagon junction box.
Mount a box for each smoke alarm. If wall mounting is desired, be
sure the box screws are oriented to upper right and lower left
corners. Be sure to use supplied Mounting Plate.
NOTE: For trouble areas where there can be a large volume of
air blowing out through the electrical junction box. You must first
insert the cardboard shield packaged with your smoke alarm to the
backside of unit before securing it to the mounting plate.
WIRING ONE SMOKE ALARM
1. Run a minimum of 16 gauge, 2-conductor cable, plus ground
(3 wires) to junction box from a power supply. Smoke alarms shall
have their own dedicated circuit. Use ANSI/UL Listed Class 1 wire.
NOTE: The wiring to be used shall be in accordance with the
provisions of Article 300.3(b) of the National Electrical Code,
NFPA 70 as well as Article 210.
2. Make wire connections to the supplied plug-in connector as
follows: black to black, white to white, and connect the ground wire
to the metal outlet box.
Figure 8
NOTE/RED-YELLOW WIRE: The red-yellow wire from the smoke
alarm is for tandem connection only. DO NOT USE, AND DO NOT
REMOVE INSULATION CAP UNLESS CONNECTING ANOTHER
SMOKE ALARM.
550-0071
Pg. 7-4

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