Use and Care Manual

16
Wiring Instructions for AC Quick Connector Harness
CAUTION: Turn off the main power to the circuit 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 hardwire interconnected, all interconnected units must be powered from a single circuit.
• A maximum of 24 Kidde Safety devices may be interconnected in a multiple station arrangement. The intercon-
nect system should not exceed the NFPA interconnect limit of 12 smoke alarms and/or 18 alarms total (smoke,
CO, Smoke/ CO Combination, heat, etc.). With 18 alarms interconnected, it is still possible to interconnect up to
a total of 6 remote signaling devices and/or relay modules.
• Figure 9-B 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.
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NOTE: Use standard UL Listed household wire (as required by local codes) available at all electrical supply
stores and most hardware stores.
NOTE: AC power should be turned off at this stage.
FUSE OR CIRCUIT BREAKER
Additional
Alarm
RED
BLACK
WHITE
Additional
Alarm
RED
BLACK WHITE
RED
BLACK
WHITE
Kidde Relay Module
SM120X, CO120X
or both
Optional
Accessory
First
Alarm
Figure 9-B, Interconnect Wiring Diagram
Wires on alarm harness: Connected to:
Black: Hot side of AC line
White: Neutral side of AC line
Red: Interconnect lines (red wires) of other
units in the multiple station set-up
Service
Panel
Receptacles Interconnected alarms
Wiring practice that has had good results
in preventing nuisance alarms
Figure 9-C