BRK electronic 4120 AC - Manual (Page 15)

13
Interconnecting Multiple Smoke Alarms
A Unswitched 120V AC 4 Wire Nut
60 Hz Source
B To Additional Units 5 Junction Box
Maximum = 18 (Max.
12 Smoke Alarms)
1 Smoke Alarm 6 Neutral (White) AC Wire
2 Ceiling or Wall 7 Interconnect Wire
3 Power Connector 8 Hot (Black) AC Wire
To install and interconnect multiple alarms:
1. Remove mounting bracket from the base. Position
screw slots on mounting bracket over screws in
the junction box. Tighten screws.
2. Strip off about 1/2” (12 mm) of the plastic coating
on the orange wire on the power connector.
3. Using wire nuts, connect the power connector to
the household wiring.
• Connect the white wire on the power connector
to the neutral wire in the junction box.
• Connect the black wire on the power connector
to the hot wire in the junction box.
• Connect the orange wire on the power
connector to the interconnect wire in the
junction box. Repeat for each unit you are
interconnecting. Never connect the hot or
neutral wires in the junction box to the orange
interconnect wire. Never cross hot and neutral
wires between Alarms.
4. Plug the power connector into the back of the
Smoke Alarm.
5. Position the base of the Smoke Alarm over the
mounting bracket and turn. The Alarm can be
positioned over the bracket every 60°. Turn the
unit clockwise (right) until the unit is in place.
ELECTRICAL SHOCK HAZARD. Do not restore power
until all Smoke Alarms are completely installed.
Restoring power before installation is complete may
result in serious electrical shock, injury or death.
6. Make sure each unit is receiving AC power. Under
normal operation, the Green power indicator light
will shine continuously.
7. Test each Smoke Alarm. Press and hold the test
button until the unit alarms.
When testing a series of interconnected units you
must test each unit individually. Make sure all
units alarm when each one is tested.
NOTE: When power is applied, unit(s) may alarm
momentarily.
If any unit in the series does not alarm, TURN OFF
POWER and recheck connections. If it does not alarm
when you restore power, replace it immediately.
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