Edwards Signaling 517TC - Manual (Page 5)

NOTE: A maximum of six (6) alarms of model 517TC with the relay
option may be tandem interconnected.
Wire used for interconnecting shall be in accordance with the latest
edition of article 760 of the National Electrical Code (NFPA 70) and must
not exceed a resistance of 10 ohms.
CHECKOUT & TROUBLESHOOTING
1. Turn test knob to the NORMAL position and supply house power to the
alarm. The red indicator light should flash approximately every 15-30
seconds, showing that the alarm is operating properly.
2. If red light is not flashing or the green LED is not on:
a. Check the house current.
b. Check the connector plug and wire connections. NOTE: Be sure
you turn off power before checking wire connections.
c. If the power supply and wiring check out, but the red light does not
flash, return the alarm to the manufacturer.
d. When powering up alarms in a tandem installation and all the alarms
sound immediately, inspect all alarms for those with an illuminated
indicator light. These will be the trouble units.
3. Testing with the Test Knob:
a. Rotate the test knob counter-clockwise to the TEST 1 position and
wait up to 20 seconds for the alarm to sound. If the alarm does not
sound after 20 seconds, return the alarm for service.
b. After successfully testing alarm, return test knob to NORMAL
(non-test) position and wait 20 seconds for the alarm to stop
sounding.
3. Place the alarm up to the mounting plate, rotating it clockwise until
alarm firmly snap locks into place. Keep the alarm parallel to the
mounting plate so upper and lower tabs on the plate seat correctly
into the alarm.
c. To test alarm for high sensitivity, turn test knob clockwise to TEST
2 position. Alarm should remain silent.
Make sure to return test knob back to its normal position.
If your alarm sounds during this test it means the alarm’s sensitivity
has become too high and may cause false alarms.
This could mean your alarm is dirty and should be cleaned as
described in the maintenance procedure below.
d. To check for proper smoke entry into your alarm’s sensing cham-
ber, Edwards recommends using the Home Safeguard Smoke
Alarm spray.
This test should be performed once a year and should be sprayed from
a distance no closer than 12 inches from the smoke alarm.
MAINTENANCE
After your alarm has been in operation for a period of time or if it was in-
stalled prior to the completion of all building construction, your alarm may have
become more sensitive due to dirt build-up in the alarm’s optic sensing cham-
ber which could cause nuisance alarms or could cause activation from small
amounts of smoke build-up.
If this should occur, following this simple washing procedure will restore
your smoke alarm back to its original condition.
For further information, regarding frequency of cleaning and testing,
refer to NFPA 72, NFPA, Batterymarch Park, Quincy, MA 02269.
IMPORTANT: Failure to follow full cleaning instructions could result
in damage to this smoke alarm.
DO NOT remove all alarms at the same time for cleaning.
1. Turn off electrical power to the alarm
2. Twist the alarm counter-clockwise to remove it from its mounting plate.
3. Unplug the connector from the back of the alarm. Do not remove the
wire connection; leave the connection for your replacement alarm or
jumper plug.
12
12
1. Run a minimum of 16 gauge, 3-conductor cable, plus ground (4 wires)
to the first alarm junction box from a power supply and between all
alarms that are to be connected together. Use U.L. Listed Class 1
wire.
2. Make wire connections to the supplied plug-in connector as follows: black
to black, white to white, 3rd conductor to the red/yellow wire. The
red/yellow wire should be stripped to make the connection. Connect
ground wire between metal outlet boxes.
NOTES ON TANDEM INTERCONNECTING MODELS
· Only Edwards models 517T, 517TC and 517TH may be connected. DO
NOT connect Edwards smoke alarms to other manufacturers' smoke
alarms.
· No more than 12 Edwards models 517T and 517TH may be connected in
tandem.
· No more than 6 Edwards model 517TC may be connected in tandem.
· All units connected in tandem MUST get their power from the same cir-
cuit, that is, all smoke alarms in tandem must be controlled by the same fuse
or circuit breaker.
After installation to verify proper working conditions all horns must sound
in this system.
IMPORTANT WARNING:
Failure to observe any of the conditions set forth may cause system
malfunction and damage to the alarm.
MOUNTING: PLATE & ALARM
1. Lace the connector through the provided mounting plate and secure
the plate to the junction box.
2. Plug the wire connector into the alarm base.