Edwards Signaling 517TCS - Manual (Page 5)

WIRING TWO OR MORE ALARMS
Tandem Installation
CAUTION: All alarms in a tandem installation must be controlled by the
same fuse or circuit breaker. Otherwise tandem units will not operate.
NOTE: A maximum of six (6) alarms may be tandem interconnected.
Wire used for interconnecting shall be in accordance with the latest
editions of article 760 of the National Electrical Code (NFPA 70) and must
not exceed a resistance of 10 ohms.
MOUNTING: PLATE & ALARM
1. Lace the connector through the provided mounting plate and secure
the plate to the junction box so that the smoke alarm snap-in tabs are
in the vertical position if wall mounted.
NOTE: Mounting plate is marked "THIS SIDE OUT" and slotted for
proper positioning.
2. Plug the wire connector into the alarm base.
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 UL 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
· No more than 6 Edwards model 517TCS may be connected in tandem.
· All units connected in tandem MUST get their power from the same
circuit, 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.
· Do not connect Edwards smoke alarms to other manufacturer's smoke
alarms.
IMPORTANT WARNING:
Failure to observe any of the conditions set forth may cause system
malfunction and damage to the alarm.
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.
CHECKOUT & TROUBLESHOOTING
1. Turn test knob to the NORMAL position and supply house power to the
alarm. The red indicator light should flash 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.
c. To test alarm for high sensitivity, turn test knob clockwise to TEST
2 position. Alarm should remain silent.