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5. Pull the wiring harness through the center hole in the mounting bracket.
6. Plug the wiring harness into the back of the alarm. It is important to make sure the lock-
ing tabs on the connector snap securely into place.
7. Push the excess wire back into the electrical junction box.
CAUTION:
The AC power should still be turned off at this stage.
8. Position the base of the alarm over the mounting bracket and turn until the alarm snaps
securely into place.
9. Activate the Permanent Power sealed battery by removing the battery pull tab. The alarm
will sound one long beep to let you know it is powered.
NOTE:
Once activated, the alarm cannot be turned off without permanent deactivation.
The alarm will remain on for approximately ten years.
10. Turn on the AC power. The green LED should be on to indicate power. The red LED
should flash on once approximately every two minutes.
NOTE:
It is best to “reset” the alarms before initial test is performed. The reset instruc-
tions can be found on page 11.
11. Test the alarm. IMPORTANT: All interconnected alarms in the interconnected system
should sound. This test is only testing the interconnect signal between each alarm. It will
not test the operation of each alarm. To verify all alarms are operating correctly, press the
test button on each alarm individually.
Repeat steps 1-11 above for installation of multiple interconnected alarms.
ELECTRICAL SHOCK HAZARD.
Do not restore power until all alarms are completely
installed. Restoring power before installation is complete may result in serious electrical
shock, injury or death.
If any alarm in the series does not sound during testing, turn off power, recheck connections
and wiring and confirm the battery pull tab has been removed. Restore power and re-test. If
there is still a problem, call customer service. Do not attempt to fix the alarm.
INTERCONNECTION & COMPATIBILITY
Interconnected alarms can provide earlier warning than stand-alone alarms, especially the
hazard occurs in a remote area of the dwelling. When alarms are interconnected, all alarms
will sound when one alarm first sounds.
To prevent damage, do not connect this alarm to any other type of alarm
or auxiliary device. Connecting incompatible devices or alarms may damage this alarm or
prevent it from operating properly.
This alarm may be interconnected with a total of not more than 24 interconnected devices,
i.e., as many as 11 other USI Electric or Universal Security Instruments model smoke alarms
or combination smoke and carbon monoxide or smoke and carbon monoxide/natural gas
alarms; 6 other initiating alarms which may be a combination of USI Electric or Universal
carbon monoxide alarms and heat alarms; and 6 other non-initiating devices such as USI
Electric relay modules.
This alarm can be interconnected with the following models: MDSCN111, MICN109, MCN108,
USI-1103, USI-1203, USI-1204, USI-1208, USI-1209, USI-1213, USI-5204, USI-3204, USI-
7795, 5304, MI106, MDS107, MP117, USI-2430, USI-960, MI106S, MIC1509S, MP116S,
MPC122S, SLW127, AMIC1510S, AMI1061S.
When any one of these interconnected models sounds, it will trigger the corresponding alarm
within the interconnected system with respect to their sensing capabilities. Natural gas detec-
tion is only present in models MDSCN111, MICN109 and MCN108, therefore a natural gas
alarm will NOT trigger the alarm of non-natural gas sensing models within an interconnected
system.
The following alarms can trigger Quick Find® Alarm Origination, but will not indicate Alarm
Origination on an interconnected system: USI-1103, USI-1203, USI-1204,
USI-1208, Part USI-1209, USI-1213, USI-5204, USI-3204, USI-7795, USI-2430.
The following alarms cannot be reset through an interconnected system: USI-1103, USI-1203,
USI-1204, USI-1208, USI-1209, USI-1213, USI-3204, USI-2430, USI-7795.
NOTE:
Alarms without battery backup will not respond during an AC power failure.
Interconnected CO alarms or CO alarm circuit of combination smoke and CO alarms will only
respond if a CO alarm/event initiates the alarm. All other alarms remain silent.
Interconnected smoke alarms, heat alarms and relay modules will only respond if a smoke
alarm/event or heat alarm/event initiates the alarm. All CO alarms remain silent.
