User Manual

DO NOT TAMPER WITH WIRES WHEN POWER IS ON!
For alarms that are used as single smoke alarms, do not connect the yellow wire to anything.
Insulate this wire (tape it) in place to make certain the yellow wire cannot contact any metal
parts.
INTERCONNECTION & COMPATIBILITY: Interconnected alarms can provide earlier warning
than stand-alone alarms, especially if a hazard is present in a remote area of the dwelling.
When alarms are interconnected, all alarms will sound when the initiating alarm sounds,
providing more time to escape safely. 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
brand model smoke alarms or combination smoke and carbon monoxide (CO) alarms or
smoke and carbon monoxide/natural gas alarms; 6 other initiating alarms which may be
a combination of USI Electric or Universal brand CO alarms and heat alarms; and 6 other
non-initiating devices such as USI Electric brand relays.
This alarm can be interconnected with the following compatible alarms: MDSCN111, MICN109,
MCN108, SS-2895, USI-1103, USI-1204, USI-1208, USI-1209, USI-5204, USI-3204, USI-7795,
5304, MI106, MDS107, MP117, USI-2430, USI-960, MI106S, MIC1509S.
When any one of these interconnected models goes into alarm, it will trigger the corresponding
alarm within the interconnected system with respect to their sensing capabilities.
Interconnected CO alarms, or the CO alarm circuit of combination smoke, CO and natural gas
alarms, will only respond if a CO alarm event initiates the alarm. All other alarms remain silent.
Interconnected combination CO and natural gas alarms will only respond if a natural gas
event initiated the alarm. All other alarms remain silent. Natural gas detection is only present
in models MDSCN111, MICN109, 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-1204, USI-1208,
USI-1209, USI-1213, USI-5204, USI-3204, USI-2430, USI-7795.
The following alarms cannot be reset through an interconnected system because they do
not have Quick Find® Alarm Origination: USI-1103, USI-1204, USI-1208, USI-1209,
USI-5204, USI-3204, USI-2430, USI-7795.
2. Insert the pin into the hole for the feature you are activating. Refer to the diagram below for
correct placement.
TO DEACTIVATE THE LOCKING FEATURES: To remove the smoke alarm for cleaning or servicing
or to replace the battery, you must rst remove the appropriate locking pin, if it has been installed.
1. Turn off AC power to the circuit.
2. Use long nose pliers to pull the locking pin out of the hole.
3. It is now possible to remove the smoke alarm or replace the battery.
WIRING INSTRUCTIONS:
1. a. The appropriate power supply is 120 Volt single phase power supplied from a non-
switchable circuit NOT protected by a ground fault circuit interrupter.
b. Turn off AC power to the circuit before wiring the smoke alarm.
c. There are three pigtail wires (black, white and yellow) coming from the AC QUICK
CONNECTOR. The proper wire connection is as follows:
WIRES FROM QUICK CONNECTOR CONNECT TO
BLACK "HOT" side of AC line
WHITE "NEUTRAL" side of AC line
YELLOW Interconnect wires of other smoke alarms
INSERT ALARM
LOCKING PIN HERE
INSERT BATTERY
LOCKING PIN HERE
Page 5
ALARM/BRACKET
LOCKING PIN
BATTERY DRAWER LOCKING PIN