Edwards Signaling 517TCS - Manual (Page 4)

WHERE SMOKE ALARMS SHOULD BE PUT IN
MOBILE HOMES
In mobile homes built after about 1978 that were designed and insu-
lated to be energy-efficient, smoke alarms should be installed as de-
scribed in the section above.
In older mobile homes that have little or no insulation compared to
today’s standards, uninsulated metal outside 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, put smoke
alarms in such units only on inside walls, between 4 and 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,
put the alarm on an inside wall.
Minimum protection requires one alarm as close to the sleeping area
as possible. For better protection, put one alarm in each room, but first read
the “Locations to Avoid.”
LOCATIONS TO AVOID
Nuisance alarms are caused by placing alarms where they will not operate
properly. To avoid nuisance alarms, do not place 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. In-
stall 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 6 shows how an alarm can
be exposed to combustion particles in normal air movement paths, and how
to correct this situation.
WARNING: Never remove power from the alarm to silence a nuisance
alarm. Open a window or fan the air around the alarm to remove the
smoke. The alarm will automatically turn off when the smoke in the air is
completely gone. Do not stand close to the alarm. The sound produced by
the 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
CAUTION: New Construction: DO NOT attach alarm head until AFTER
sanding, painting, and other dust creating situations are finished and cleaned
up.
WIRING/GENERAL
1. Use 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 alarm.
Be sure the power line to the alarms 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.
WARNING: Alarm installation must conform to the electrical codes in your
area and to Article 760 of the U.S. National Electrical Code. Wire installa-
tion 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 alarm. If wall mounting is desired, be sure the box screws are ori-
ented 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 attach an adhesive
backed foam gasket, which has been packaged with your alarm, to the
back side of the mounting bracket before its secured to the junction box.
WIRING ONE ALARM
1. Run a minimum of 16 gauge, 2-conductor cable, plus ground (3 wires)
to the alarm junction box from a power supply. Use UL Listed Class
1 wire.
Figure 6
· 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 alarms at least 10 feet (3 meters) away from bath-
rooms.
· 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 alarm. 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 alarm’s
sensing chamber and can make it overly sensitive, or block openings to
the sensing chamber and keep the alarm from sensing smoke.
· Near fresh air inlets or returns or excessively drafty areas. Air con-
ditioners, heaters, fans, and fresh air intakes and returns can drive smoke
away from smoke alarms, making the alarms 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 reach-
ing an alarm. See Figures 4 and 5 for recommended mounting loca-
tions.
· In insect-infested areas. If insects enter an alarm’s sensing chamber,
they may cause a nuisance alarm. Get rid of the bugs before in-
stalling alarms where bugs are a problem.
· Near fluorescent light fixtures. Electrical “noise” from nearby fluo-
rescent light fixtures may cause a nuisance alarm. Install alarms at
least 5 feet (1.5 meters) away from such light fixtures.
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 box.
NOTE/RED-YELLOW WIRE: The red-yellow wire from the alarm is for tan-
dem connection only. DO NOT USE, AND DO NOT REMOVE INSULATION
CAP UNLESS CONNECTING ANOTHER ALARM.
Wiring Diagram