BEFORE WIRING THE ALARM.
• For alarms that are used as single station, DO NOT CONNECT
THE RED WIRE TO ANYTHING. Leave the red wire insulating cap
in place to make certain that the red wire cannot contact any
metal parts or the electrical box.
• When alarms are interconnected, all interconnected units must
be powered from a single circuit.
• A maximum of 24 Kidde/Lifesaver devices may be interconnect-
ed in a multiple station arrangement. The interconnect system
should not exceed the NFPA interconnect limit of 12 smoke
alarms and/or 18 alarms total (smoke, heat, carbon monoxide,
etc.). With 18 alarms interconnected, it is still possible to inter-
connect up to a total of 6 remote signaling devices and/or relay
modules.
• When mixing models which have battery backup (1275, 1276,
1285, 1296, i12040, i12060, i12080, PE120, PI2000, KN-
COSM-IB, HD135F, KN-COB-IC, KN-COP-IC, RF-SM-ACDC) with
models without battery backup, (1235, i12020, KN-COSM-I,
120X, SM120X, CO120X, SL177i) be advised that the models
without battery backup will not respond during an AC power
failure.
• The maximum wire run distance between the first and last unit
in an interconnected system is 1000 feet.
• Figure 4 illustrates interconnection wiring. Improper connection
will result in damage to the alarm, failure to operate, or a shock
hazard.
• Make certain alarms are wired to a continuous (non-switched)
power line. NOTE: Use standard UL listed household wire (as
required by local codes) available at all electrical supply stores
and most hardware stores.
FUSE OR CIRCUIT BREAKER
BLACK
RED
WHITE
CONNECTOR
First
Alarm
FIGURE 4 INTERCONNECT WIRING DIAGRAM
Additional
Alarm
Kidde
Relay Module
SM120X
Optional Accessory
BLACK
RED
WHITE
CONNECTOR
Additional
Alarm