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THIS ALARM WILL NOT WORK WITHOUT 120 VAC POWER AND A GOOD
BATTERY PROPERLY INSTALLED. THE ALARM SHOULD BE TESTED WHEN
INSTALLED AND THEN TESTED WEEKLY AFTER THAT.
INSTALLATION INSTRUCTIONS: CAUTION!! READ CAREFULLY.
Installation of this alarm must conform to the electrical codes in your area; Article 760 of
the National Electrical Code, NFPA 72, 101; SBC (SBCCI); UBC (ICBO); NBC (BOCA): OTFDC
(CABO), and any other local or building codes that may apply. Wiring and installation must
be performed by a licensed electrician. Failure to follow these guidelines may result in
injury or property damage.
This alarm must be powered by a 24-hour, 120V AC 60Hz circuit. Be sure the circuit cannot
be turned off by a switch, dimmer or ground fault circuit interrupter. Failure to connect this
alarm to a 24-hour circuit may prevent it from providing constant protection.
IMPORTANT: Do not subject this alarm to megger, high voltage or high-pot tests. Remove
the alarm(s) before high-potting tests occur on the circuit or system. (Ref. Section 550-17,
National Electrical Code, 2002 Edition).
ELECTRICAL SHOCK HAZARD
Turn off power to the area where you will install this alarm at the circuit breaker or fuse box
before beginning installation. Failure to turn off the power before installation may result in
serious electrical shock, injury or death.
CAUTION: THIS CO AND NATURAL GAS ALARM IS SEALED. THE COVER IS
NOT REMOVABLE
!
• A mounting bracket is provided on the back of the alarm.
• The alarm deactivation key will not be used for this model.
• Remove the mounting bracket from the back of the alarm by holding the mounting bracket and
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the alarm base.
OPTIONAL TAMPER RESISTANT FEATURES:
There are two separate tamper resistant locking
features provided for this model. Activating one or both of these features deters someone from
removing the alarm from the mounting bracket or removing the battery from the alarm. The
breakaway locking pins are clearly marked and molded into the mounting bracket. Refer to the
diagram on the next page.
TO ACTIVATE THE LOCKING FEATURES:
Do not activate the locking features until you have
activated the battery, mounted the alarm to the bracket and tested the alarm. Refer to OPERATION,
TESTING & MAINTENANCE instructions on Page 6.
1. Detach the breakaway alarm locking pin from the mounting bracket.
TO DEACTIVATE THE LOCKING FEATURES:
To remove the alarm for cleaning or servicing or to
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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 alarm or replace the battery.
WIRING INSTRUCTIONS:
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switchable circuit NOT protected by a ground fault circuit interrupter.
2. Insert the pin into the hole for the feature you are activating. Refer to the diagram below for
correct placement.
INSERT ALARM LOCKING
PIN HERE
INSERT BATTERY
LOCKING PIN HERE
ALARM/BRACKET
LOCKING PIN
BATTERY DRAWER LOCKING PIN
DO NOT TAMPER WITH WIRES WHEN POWER IS ON!
For alarms that are used as single non-interconnected, stand-alone 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.
Interconnected smoke alarms, heat alarms and relays will only respond if a smoke alarm
event or heat alarm event initiates the alarm. All CO and natural gas alarms remain silent.
NOTE: Alarms without battery backup will not respond during an AC power failure.
NOTE: The relay, model USI-960, will not respond if a CO or natural gas alarm event initiates
the alarm.
Page 6
b. Turn off AC power to the circuit before wiring the 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
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YELLOW
Interconnect wires of other alarms
The yellow wire is used only for interconnect (multiple station operations) USI Electric or
Universal model alarms. Connecting this yellow wire to any other circuits may result in
damage and alarm malfunction. All interconnect alarms must be powered from a single circuit.
If local codes do not specify, be sure the neutral wire is common to all alarms. The maximum
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1,000 feet. NOTE: Use standard household wire, 18 gauge or larger, rated at least 300V, as
required by local codes. This wire is commonly available at most electrical supply and
hardware stores. The resistance of the interconnect wiring shall be a maximum of 10 Ohms.
The alarm wiring shall be in accordance with the provisions of Articles 210 and 300.3(B) of
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power shall be supplied either from a dedicated branch circuit or the un-switched portion
of a branch circuit also used for power and lighting.”
2. Attach the mounting bracket to the electrical junction box.
3. To activate 9 volt battery and alarm, hold the QUICK DRAW
(R)
battery drawer closed, pull and
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4. Plug the AC QUICK CONNECTOR into the alarm base. Push and twist the alarm clockwise onto
the mounting bracket.
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6. Turn on AC power and check the LED’s for proper operation. The green LED should be on to
indicate AC power. The red LED blinks on once approx. every 40 seconds to indicate proper
operation.
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IMPORTANT!
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Alarm. Actual backup time depends on the strength (freshness) of the battery. The battery backup
will not work unless a good battery is properly installed.
When the alarm utilizes battery backup power, the natural gas sensor will operate the alarm and will
sample less frequently to extend battery life. Natural gas could be present during this period between
samples without the alarm sounding, especially if there is a rapid buildup of natural gas.
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procedures
.
120 VAC 60Hz
100mA Max.
OPERATION, TESTING & MAINTENANCE
OPERATION:
The alarm is operating once the AC power is connected and turned on.
READY/ACTIVE CONDITION:
The green LED is on and blinks off once approx. every 20 seconds
to indicate the alarm is properly functioning.
GREEN LED:
The green LED is off and blinks on approx. every 40 seconds whenever AC power
is turned off.
CO ALARM:
The alarm signal is 4 beeps, 5 second pause, repeat. The red LED blinks on in sync
with the cycle of 4 beeps.
GAS ALARM:
The alarm signal is 1 beep, 2 second pause, repeat. The blue LED blinks on in
sync with the horn beep.
NUISANCE ALARM:
If the horn signals and the red or blue LED’s blink on for no apparent reason
and no obvious hazard is present, please verify that the alarm is mounted in the correct location.
Reset the alarm as instructed in the Operational Summary.
CO ALARM LATCHING LED INDICATOR:
The alarm had previously detected CO and had alarmed.
The red LED is off and blinks on approx. every 5 seconds until reset. Follow the reset instructions
to remove the latching LED.