Kidde TRUSENSE SMOKE 3050-VAS10 User manual

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TRUSENSE SMOKE
User Guide
Multi-Criteria Optical Sensor Smoke Alarm
with Voice and Hardwire Interconnect
Model 3050-VAS10
120V HARDWIRE INTERCONNECT
10YEAR BATTERY BACKUP
VOICE ALARM
SMOKE ALARM
P/N: 1328-7201-00 Rev A
10 YEAR SMOKE ALARM
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Advanced Smoke Detection Technology
SENSE
Helps Reduce Cooking
Nuisance Alarms
UL 217 8
th
Ed.

2
Thank You for Purchasing this Kidde Alarm
Hardwired for 120VAC, this model features a non-replaceable, sealed-in battery backup. It also contains a
voice message system and SMART Hush® Control to temporarily silence nuisance alarms.
Teach children how to respond to the alarm and that they should never play with the unit. This alarm was
designed specifically for use in a residential environment. It is not designed for use in a recreational vehicle (RV)
or boat.
NOTE: Please thoroughly read this user guide and save the document for future reference and to pass on
to any subsequent owner.
The National Fire Protection Association (NFPA) and
the manufacturer recommend replacing this alarm
ten years from the date code on back of alarm.
Date Code (on back): ___________________
Date of Purchase: ___________________
Where Purchased: ___________________
Date to Replace: ___________________
Product Support: 1-800-880-6788
Please write down the below information
and have this at hand when you call.

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Contents
1. Smoke Alarm: What To Do When The Alarm Sounds . . . . . . . . . . . . 4
2. Carbon Monoxide Alarm: What To Do When The Alarm Sounds . . . . . . . . 5
3. Other Alarm Visual And Audible Indicators . . . . . . . . . . . . . . . 6
4. Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . 7
5. Introduction, Product Features And Specifications . . . . . . . . . . . . . 8
6. Limitations Of Smoke Alarms . . . . . . . . . . . . . . . . . . . . . 9
7. Recommended Locations For Smoke Alarms . . . . . . . . . . . . . . . 10
8. Locations To Avoid. . . . . . . . . . . . . . . . . . . . . . . . . 13
9. Wiring / Installation / Activation . . . . . . . . . . . . . . . . . . . 14
10. Operation And Testing . . . . . . . . . . . . . . . . . . . . . . . 18
11. Recognizing Nuisance Alarms . . . . . . . . . . . . . . . . . . . . 19
12. Battery Back Up . . . . . . . . . . . . . . . . . . . . . . . . . 20
13. Permanently Disable Alarm / Discharge Battery . . . . . . . . . . . . . 21
14. Cleaning Your Alarm. . . . . . . . . . . . . . . . . . . . . . . . 22
15. Good Safety Habits . . . . . . . . . . . . . . . . . . . . . . . . 23
16. Service And Warranty . . . . . . . . . . . . . . . . . . . . . . . 26

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1. Smoke Alarm: What To Do When The Alarm Sounds
The smoke alarm pattern is three long beeps with voice “Fire!,” a 1.5 second pause, and three long beeps repeating.
The red LED blinks in time with the alarm pattern only on the alarm(s) that detected the hazard (initiating alarm).
•Alert small children in the home as well as anyone else that might have difficulty recognizing the impor-
tance of the alarm sounding or that might have difficulty leaving the area without help.
•Leave immediately by your escape plan. Every second counts, so don’t waste time getting dressed or
picking up valuables.
•While leaving, don’t open any inside door without first feeling its surface. If hot, or if you see smoke seeping
through cracks, don’t open that door! Instead, use your alternate exit. If the inside of the door is cool, place
your shoulder against it, open it slightly and be ready to slam it shut if heat and smoke rush in.
•If the escape route requires you to go through smoke, stay close to the floor where the air is cleaner.
Crawl if necessary, and breathe shallowly through a cloth, wet if possible.
•Once outside, go to your selected meeting place and make sure everyone is there.
•Call the fire department or 911 from your cell phone outside, or from your neighbor’s home-not from yours!
•Don’t return to your home until the fire officials say that it is all right to do so.
NOTE: See Section RECOGNIZING NUISANCE ALARMS, for nuisance alarm situations.

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2. Carbon Monoxide Alarm: What To Do When The Alarm Sounds
NOTE: This is not a carbon monoxide (CO) alarm, but will receive and transmit a CO alarm signal (with voice
message) from an interconnected CO or combination smoke / CO alarm.
The carbon monoxide (CO) alarm pattern is four quick beeps with voice “Warning! Carbon Monoxide” repeating
every 5 seconds.
WARNING: ACTUATION OF YOUR CO ALARM INDICATES THE PRESENCE OF CARBON MONOXIDE CO
WHICH CAN KILL YOU. IF ALARM SIGNAL SOUNDS:
1 Operate the Test/Hush® button. NOTE: Pressing the button on the initiating CO or combination smoke/CO unit in your
system will silence the alarm notification, including all interconnected units. If the CO or combination smoke/CO unit goes
into alarm mode again within six minutes, it is sensing high levels of CO which can quickly become a
dangerous situation.
2 Call your emergency services (Fire Department or 911). EMERGENCY PHONE #: _______________________
3 Immediately move to fresh air— outdoors or by an open door /window. Do a head count to check that all persons are
accounted for. Alert small children in the home as well as anyone else that might have difficulty recognizing the impor-
tance of the alarm sounding or that might have difficulty leaving the area without help. Do not reenter the premises or
move away from the open door/window until the emergency services responders have arrived, the premises have been
aired out, and your alarm remains in its normal condition.
4 After following steps 1-3, if the alarm reactivates within a 24 hour period, repeat steps 1-3 and call a qualified appliance
technician to investigate sources of CO from fuel burning equipment and appliances, and to inspect for proper operation
of equipment.
If problems are identified during this inspection, have the equipment serviced immediately. Note any combustion equipment not
inspected by the technician and consult the manufacturer’s instructions, or contact the manufacturer directly for more informa-
tion about CO safety and the equipment. Make sure that motor vehicles are not, or have not been, operating in a garage attached
or adjacent to the residence. Never restart the source of a CO problem until it has been corrected. Never ignore the sound of the
alarm! NOTE: See Section RECOGNIZING NUISANCE ALARMS, for nuisance alarm situations.

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If you require further information please contact Product Support at 1-800-880-6788 or write us at:
Kidde, 1016 Corporate Park Drive, Mebane, NC 27302. Our internet address is www.kidde.com.
3. Other Alarm Visual And Audible Indicators
Operational Mode Visual Indications Audible Indications Action/Note
Normal (standby) AC power: Green LED on
continuously.
DC power: Green LED blink
approx every 60 sec.
Test (button press
when no alarm con-
dition is present)
(Note: Test is very
loud, stand a few feet
away.)
Red LED blinks in time with
alarm pattern.
• Single beep.
•3 long beeps, voice "Fire!", 3
long beeps.
Perform button press once a
week to verify proper alarm
operation.
Smoke Alarm
Memory (unit has
experienced a smoke
alarm event.)
Red LED blink every 16 sec. After button push, voice “Smoke
previously detected.”
* NOTE: On DC power, alarm
memory is only retained for
24 hrs.
Push button to clear Alarm
Memory.
Smoke Alarm Hush®
Mode (SMART Hush®
CONTROL)
Red LED blinks every 2 sec. After button push, voice “Hush
Mode Activated." Smoke alarm
pattern stops. (If there is too
much smoke to allow Hush® :
voice "Too Much Smoke, Can-
not be Hushed”, Smoke alarm
pattern continues.)
This feature is to be used
only when a known alarm
condition, such as smoke
from cooking, activates the
alarm.
Initiating Alarm
(multiple alarms in
an interconnected
system)
Red LED blinks in time with
alarm pattern indicating that
this is the unit initiating the
alarm in an interconnected,
multiple alarm, system.
NOTE: It is possible for more
than one unit to detect
a hazard and become an
initiating alarm unit (Red
LED blinking).
Unit in smoke alarm mode.

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4. Troubleshooting Guide
Trouble Condition Visual Indications Audible Indications Action
False Low Battery
(AC power
connected before
backup battery
activated)
Amber LED blinks every
5 sec.
Chirp and voice “Activate
Battery” every 60 sec.
* Rotate the alarm onto the mounting
bracket to activate backup battery.
Low Battery AC Power: Amber LED
blinks every 5 sec.
DC Power: Amber LED
blinks every 60 sec.
Chirp and voice “Replace
alarm” every 60 sec.. (After
1 hour on DC power, voice
occurs only once every 15
mins.) Voice “Hush mode
activated” after button push
(rst 7 days only).
* Push button once to silence for
24 hrs. (Push button again to clear
Hush and perform a test.)
Note: 7 days after Low Battery
begins, the notications cannot
be silenced.
* Remove, discharge, dispose unit,
and replace as soon as possible.
Fault: Smoke
Sensor Error
AC Power:
Amber LED blinks
every 5 sec.
DC Power:
Amber LED blinks
every 30 sec.
Chirp every 30 sec, voice
“Smoke Sensor Error” every
60 sec.
(After 1 hour on DC power,
voice occurs only after
button is pushed.)
* See Cleaning Your Alarm section.
* Push button once to attempt to
reset the unit.
* If error continues, remove,
discharge, dispose unit, and replace
as soon as possible.
Fault: Memory
Error
Chirp every 30 sec, voice
“Memory Error” every 60 sec.
(After 1 hour on DC power,
voice occurs only after
button is pushed.)
* Push button once to attempt to
reset the unit.
* If error continues, remove,
discharge, dispose unit, and replace
as soon as possible.
End of Unit Life AC Power: Amber LED
blinks twice every 5 sec.
DC Power: Amber
LED blinks twice every
30 sec.
AC Power: Chirp twice every
30 sec, voice “Replace Alarm.”
DC Power: Chirp twice every
30 sec, voice every 60 sec for
rst hour, then every 15 min.
Voice “Hush mode activated”
after button push (rst 7
days only).
* Push button once to silence for
24 hrs. (Push button again to clear
Hush and perform a test.)
Note: 7 days after End of Unit Life
begins, the notications cannot be
silenced.
* Remove, discharge, dispose unit,
and replace as soon as possible.
3. Other Alarm Visual And Audible Indicators
Operational Mode Visual Indications Audible Indications Action/Note
Normal (standby) AC power: Green LED on
continuously.
DC power: Green LED blink
approx every 60 sec.
Test (button press
when no alarm con-
dition is present)
(Note: Test is very
loud, stand a few feet
away.)
Red LED blinks in time with
alarm pattern.
• Single beep.
•3 long beeps, voice "Fire!", 3
long beeps.
Perform button press once a
week to verify proper alarm
operation.
Smoke Alarm
Memory (unit has
experienced a smoke
alarm event.)
Red LED blink every 16 sec. After button push, voice “Smoke
previously detected.”
* NOTE: On DC power, alarm
memory is only retained for
24 hrs.
Push button to clear Alarm
Memory.
Smoke Alarm Hush®
Mode (SMART Hush®
CONTROL)
Red LED blinks every 2 sec. After button push, voice “Hush
Mode Activated." Smoke alarm
pattern stops. (If there is too
much smoke to allow Hush® :
voice "Too Much Smoke, Can-
not be Hushed”, Smoke alarm
pattern continues.)
This feature is to be used
only when a known alarm
condition, such as smoke
from cooking, activates the
alarm.
Initiating Alarm
(multiple alarms in
an interconnected
system)
Red LED blinks in time with
alarm pattern indicating that
this is the unit initiating the
alarm in an interconnected,
multiple alarm, system.
NOTE: It is possible for more
than one unit to detect
a hazard and become an
initiating alarm unit (Red
LED blinking).
Unit in smoke alarm mode.

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5. Introduction, Product Features And Specifications
Introduction
This alarm detects products of combustion using a multi-criteria optical sensor .
Ten (10) years after the unit was installed, this unit will automatically alert you that it is time to replace the unit.
This is called “End of Unit Life” mode. See Troubleshooting Guide. To help identify the date to replace the unit, a
label has been affixed to the side of the alarm. Write the “Install date” in the space provided, and then write in the
“Replace by” date (10 years from initial power up) in permanent marker on the label prior to installing the unit.
NOTE: AC power must be connected to obtain the full 10 year battery and unit life.
Product Features and Specifications:
•Temperature Operating Range: 40°F (4.4°C) to 100°F (37.8°C)
•Humidity Operating range: up to 95% RH non-condensing
•Audible Alarm: 85+ dB at 10’ , 3.0 to 3.5 KHz pulsing alarm, with voice message “Fire!”
NOTE: This is not a CO alarm, but it will receive and transmit a CO alarm signal (with voice message
“Warning! Carbon Monoxide”) from an interconnected CO or combination smoke/CO alarm.
•Smoke Sensor: Multi-Criteria Optical
•Voice message system
•Smoke Alarm SMART Hush® Control
•Powered by 120VAC (60 Hz, 35mA max) wire-in connector with sealed lithium battery backup.
•Hardwire interconnectable to other compatible alarms.
•One large, user- friendly button.

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6. Limitations Of Smoke Alarms
WARNING: PLEASE READ CAREFULLY AND THOROUGHLY
•Life safety from fire in residential occupancies is based primarily on early notification to occupants of the
need to escape, followed by the appropriate egress actions by those occupants.
•There are situations where a smoke alarm may not be effective to protect against fire as stated in the NFPA
Standard 72. For instance:
a) smoking in bed
b) leaving children home alone
c) cleaning with flammable liquids, such as gasoline
•Fire warning systems for dwelling units are capable of protecting about half of the occupants in potentially
fatal fires. A smoke alarm may not be effective in some situations, such as during incendiary fires where the
fire grows so rapidly that an occupant’s egress is blocked even with properly located smoke alarms, or when
victims are intimate with the fire (for example, when a person’s clothes catch fire while cooking), too old or
young, or physically or mentally impaired such that they cannot escape even when warned early enough
that escape should be possible. For these people, additional strategies such as protection-in-place or assist-
ed escape or rescue are necessary.
•For maximum detection of the various types of fires that can occur within the home, including fast flaming
and slow smoldering, it is recommended that multi criteria smoke alarms be installed. This model meets
the latest residential smoke alarm standards, which includes enhanced resistance to nuisance alarms from
cooking.
•A battery powered alarm must have a battery of the specified type, in good condition and installed properly
(this model has a sealed battery).
•Smoke alarms must be tested regularly to make sure the battery and the alarm circuits are in good operating
condition.
•Smoke alarms cannot provide an alarm if smoke does not reach the alarm. Therefore, smoke alarms may not sense
fires starting in chimneys, within walls, on roofs, on the other side of a closed door or other obstruction.
•If the alarm is located outside the bedroom or on a different floor, it may not wake up a sound sleeper.
•The use of alcohol or drugs may also impair one’s ability to hear the smoke alarm. For maximum protection,
a smoke alarm should be installed in each sleeping area on every level of a home.
This alarm is not intended to alert hearing impaired individuals.

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7. Recommended Locations For Smoke Alarms
•Locate smoke alarms in all sleeping areas. Try to monitor the exit path as the bedrooms are usually farthest
from the exit. If more than one sleeping area exists, locate additional alarms in each sleeping area.
•Locate additional alarms in stairways, because stairways act like chimneys for smoke and heat.
•Locate at least one alarm on every floor level.
•Locate an alarm in every bedroom.
•Locate an alarm in every room where electrical appliances are operated (i.e. portable heaters or humidifiers).
•Locate an alarm in every room where someone sleeps with the door closed. The closed door may prevent
an alarm not located in that room from waking the sleeper.
•Smoke, heat, and combustion products rise to the ceiling and spread horizontally. Mounting the smoke
alarm on the ceiling in the center of the room places it closest to all points in the room. Ceiling mounting is
preferred in ordinary residential construction.
ANYWHERE ALONG
THIS BOLD SURFACE
Locations permitted for smoke
alarms and smoke detectors
on tray-shaped ceilings.
Not within 6 feet of appliances
ACCEPTABLE
TOP OF ALARM
ACCEPTABLE HERE
Note: measurements shown
are to the closest edge
of the alarm.
Figure 7-A
ACCEPTABLE
TOP OF DETECTOR
ACCEPTABLE HERE
Note: measurements shown
are to the closest edge
of the detector.
ANYWHERE ALONG
THIS BOLD SURFACE
Locations permitted for smoke
alarms and smoke detectors
on tray-shaped ceilings.

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ANYWHERE ALONG
THIS BOLD SURFACE
Locations permitted for smoke
alarms and smoke detectors
on tray-shaped ceilings.
Not within 6 feet of appliances
ACCEPTABLE
TOP OF ALARM
ACCEPTABLE HERE
Note: measurements shown
are to the closest edge
of the alarm.
ANYWHERE ALONG
THIS BOLD SURFACE
Locations permitted for smoke
alarms and smoke detectors
on tray-shaped ceilings.
Not within 6 feet of appliances
ACCEPTABLE
TOP OF ALARM
ACCEPTABLE HERE
Note: measurements shown
are to the closest edge
of the alarm.
ANYWHERE ALONG
THIS BOLD SURFACE
Locations permitted for smoke
alarms and smoke detectors
on tray-shaped ceilings.
Not within 6 feet of appliances
ACCEPTABLE
TOP OF ALARM
ACCEPTABLE HERE
Note: measurements shown
are to the closest edge
of the alarm.
ANYWHERE ALONG
THIS BOLD SURFACE
Locations permitted for smoke
alarms and smoke detectors
on tray-shaped ceilings.
Not within 6 feet of appliances
ACCEPTABLE
TOP OF ALARM
ACCEPTABLE HERE
Note: measurements shown
are to the closest edge
of the alarm.
NFPA 72 states: “Smoke alarms in rooms with ceiling slopes greater than 1 ft in 8 ft (.3m in 2.4 m) horizontally shall
be located on the high side of the room.” NFPA 72 states: “A row of detectors shall be spaced and located within 3
ft (0.9m) of the peak of the ceiling measured horizontally.”
Figure 7-B Figure 7-C

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•For mobile home installation, select locations carefully to avoid thermal barriers that may form at the ceiling.
For more details, see MOBILE HOME INSTALLATION section.
•When mounting the alarm on the wall, use an inside wall with the top edge of the alarm at a maximum
of 12” (30.5 cm) below the ceiling.
•Put smoke alarms at both ends of a bedroom hallway or large room if the hallway or room is more than 30
feet (9.1 m) long.
•Install Smoke Alarms on sloped, peaked or cathedral ceilings at or within 3ft (0.9m) of the highest point
(measured horizontally).
This equipment should be installed in accordance with the National Fire Protection Association’s 72 (National Fire
Protection Association, Batterymarch Park, Quincy, MA 02269).
Mobile Home Installation
Modern mobile homes have been designed and built to be energy efficient. Install smoke alarms as
recommended above. In older mobile homes that are not well insulated compared to present standards,
extreme heat or cold can be transferred from the outside to the inside through poorly insulated walls and roof.
This may create a thermal barrier which can prevent the smoke from reaching an alarm mounted on the
ceiling. In such units, install the smoke alarm on an inside wall with the top edge of the alarm a maximum
of 12” (30.5 cm) below the ceiling.
If you are not sure about the insulation in your mobile home, or if you notice that the outer walls and ceiling are
either hot or cold compared to the room air temperature, install the alarm on an inside wall. NFPA 72 (National
Fire Protection Association) requires smoke alarms be installed in each sleeping area.
WARNING: TEST YOUR ALARM OPERATION AFTER MOBILE HOME HAS BEEN IN STORAGE OR
UNOCCUPIED, AND AT LEAST ONCE A WEEK DURING USE.

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8. Locations To Avoid
(See Figures 7-A, 7-B, & 7-C for recommended locations)
•In the garage. Products of combustion are present when you start your automobile.
•Normal cooking may cause nuisance alarms. If a kitchen alarm is desired, it should have an alarm silence
feature and should not be installed within 6 ft of cooking appliances.
•Do not install within 6 ft of heating appliances.
•Less than 4” (10cm) from the peak of an “A” frame type ceiling.
•In an area where the temperature may fall below 40ºF or rise above 100ºF, such as garages and unfinished
attics.
•In dusty areas. Dust particles may cause nuisance alarms or a failure to alarm.
•In very humid areas (above 95% RH, non-condensing) as moisture or steam can cause nuisance alarms.
•In insect-infested areas.
•Smoke alarms should not be installed within 3 ft (.9m) of the door to a bathroom containing a tub or shower,
forced air supply ducts used for heating or cooling, ceiling or whole house ventilating fans, or other high air
flow areas.
•Near lights. Electronic “noise” generated by the lights may cause nuisance alarms.
•Do not install near vents, flues, or chimneys.
•Do not install near fans, doors, windows or areas directly exposed to the weather.

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9. Wiring / Installation / Activation
NOTE: To avoid false low battery chirping (model will also announce
“Activate Battery”) one of the following steps must be taken to ensure
activation: (Battery activation is confirmed with a beep and voice
“Push Test Button.”)
A. Locate the red wheel on the back of the unit - turn the red wheel to the “ON” position using the included
white activation tool or a standard screwdriver. Battery will remain active to allow for installation on mounting
bracket.
B. Orient the unit with LED pointing to the right as shown in Figure 9-B, and rotate the unit a full 90 degrees
clockwise onto the mounting bracket. To allow for installation, battery will remain active when unit is removed
from mounting bracket.
Wiring Requirements
•This alarm should be installed on a UL Listed or recognized junction box. All connections should be made
by a qualified electrician and all wiring used shall be in accordance with articles 210 and 300.3(B) of the U.S.
National Electrical Code ANSI/NFPA 70, NFPA 72 and/or any other codes having jurisdiction in your area.
The multiple station interconnect wiring to the alarms must be run in the same raceway or cable as the AC
power wiring. In addition, the resistance of the interconnect wiring shall be a maximum of 10 ohms.
•The maximum wire run distance between the first and last unit in an interconnected system is 1000 feet.
•The appropriate power source is 120 Volt AC Single Phase supplied from a non-switchable circuit.
Figure 9 -B
Figure 9 -A
Install Remove
Mounting Bracket
Note orientation
of "A" line.
LED
To ensure aesthetic alignment,
install the unit onto the mounting
bracket as shown, and rotate fully
90 degrees clockwise.
USE ACTIVATION
TOOL OR SCREWDRIVER
ON
Break
tab
This alarm is not compatible
with Kidde CO-relays
and Strobes manufactured
before Nov. 1, 2011
PERMANENTLY
DISABLE and
DISCHARGE
ALARM
(2) Rotate slotted
arrow clockwise to
disable & discharge.
(3) Install new alarm.
(1) Push in the dashed
area with a screwdriver
to break tab.
When unit
announces
“Replace alarm”
CERTIFIED
SAFETY
SIGNALING
US
S1816
Multi-criteria Smoke Alarm
Helps Reduce
Cooking
Nuisance Alarms
UL 217 8
th
Ed.

15
•For best results to minimize nuisance alarms, interconnected alarms should be on a dedicated line. If not
on a dedicated line, it is suggested that the smoke alarms share a lighting load circuit that does not have a
dimmer associated with it. If receptacles must be placed on the same line it is suggested that they be placed
ahead of the smoke alarms (see Figure 9-D). This will prevent large voltage drops from occurring between
the first and last alarm in the circuit.
•Smoke alarms are not to be used with detector guards unless the combination (alarm and detector guard)
has been evaluated and found suitable for that purpose.
WARNING: THE ALARM CANNOT BE OPERATED FROM POWER DERIVED FROM A SQUARE
WAVE, MODIFIED SQUARE WAVE OR MODIFIED SINE WAVE, INVERTER. THESE TYPES OF
INVERTERS ARE SOMETIMES USED TO SUPPLY POWER TO THE STRUCTURE IN OFF GRID IN
STALLATIONS, SUCH AS SOLAR OR WIND DERIVED POWER SOURCES. THESE POWER SOURCES
PRODUCE HIGH PEAK VOLTAGES THAT WILL DAMAGE THE ALARM.
Figure 9-C, 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
Additional
Alarm
REDBLACK
WHITE
Additional
Alarm
REDBLACK
WHITE
FUSE OR CIRCUIT BREAKER
REDBLACK
WHITE
Kidde Relay Module
SM120X, CO120X
or both
Optional
Accessory
First
Alarm
Figure 9 -D
Service
Panel
Receptacles Interconnected alarms
Wiring practice that has had good results
in preventing nuisance alarms

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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 interconnect 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 (see below for details on
interconnecting Kidde devices).
•Figure 9-C 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 continu-
ous (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.
NOTE: AC power should be turned off at this stage.
•After selecting the proper location for your alarm, and wiring the AC QUICK CONNECTOR harness as
When mounting
in a hallway,
the "A" line should
be parallel with the
hallway. When wall
mounting, the "A"
line should be
horizontal.
A
Alignment Marks
(”A” Line) on
Mounting
Bracket
Mark and drill two 3/16" (5mm)
holes for wall anchors.
Remove
Install
Existing Kidde
AC Connector
(either connector
can be used for
this model)
AC Quick Connector
harness shipped
with product
AC connector
Figure 9-E

17
described previously, attach the mounting bracket to the electrical box. To ensure aesthetic alignment of the alarm
with the hallway, or wall, the “A” line on the mounting bracket should be parallel with the hallway when ceiling
mounted, or horizontal when wall mounted.
•Pull the AC QUICK CONNECTOR through the center hole in the mounting bracket and secure the bracket, making
sure that the mounting screws are positioned in the small ends of the keyholes before tightening the screws.
•Plug the AC QUICK CONNECTOR into the wiring harness attached to the unit, making sure that the locks on the
connector snap into place. Then push the excess wire back into the electrical box through the hole in the center of
the mounting bracket.Install the alarm fully on the mounting bracket by rotating the alarm in a clockwise direction.
NOTE: Installing the alarm on the mounting bracket will automatically activate the battery backup. A voice “Push
Test Button” will occur when power is first activated.
•Turn on the AC power. The green AC Power On Indicator should be lit when the alarm is operating from AC power.
NOTE: Attaching AC power first, without rotating the alarm onto the mounting bracket, will result in a false low
battery trouble condition chirp and voice notification (see Troubleshooting guide). You need to activate the battery
to eliminate the false low battery trouble condition chirps and voice. Attach unit to mounting bracket very soon
after applying AC power to avoid false low battery notification.
NOTE: The battery activation is a one-time feature that occurs when the alarm is rotated fully onto the mounting
bracket. After activation, the battery cannot be turned off, and can only be discharged at the end of unit life. If the
alarm is removed from the mounting bracket, the backup battery will remain active. See Permanently Disable Alarm
/ Discharge Battery section.
AC Wired Interconnect Model Capability
This model has AC hardwire interconnect capability. When one hardwired interconnect unit sounds an alarm, all other
compatible hardwired interconnected units will also alarm.
•The following models can be interconnected using the standard AC wiring interconnect: 1235, 1275, 1276, 1285,
i12020, i12020A, i12040, i12040A, i12060, i12060A, i12080, i12080A, i4618, i4618A, i4618AC, KN-SMFM-I,
RF-SM-ACDC, PE120, P12040, Pi2000, Pi2010, KN-COSM-I, KN-COSM-IB, KN-COSM-IBA, KN-COPE-I,
KN-COPE-IC, KN-COB-IC, KN-COP-IC, SL177i, SLED177i, HD135F, SM120X, CO120X, i12010S, i12010SCO,
P4010ACSCO, P4010ACSCO-W, P4010LACS-W, P4010ACS, P4010ACS-W, 3050-VAS10, 3050-VASC10, 2070-VASCR, 2070-
VASR.
The alarm is now activated! After installation / activation, test your alarm as described in Operation and Testing section.
WARNING: FAILURE TO PROPERLY INSTALL AND ACTIVATE THIS ALARM WILL PREVENT PROPER OPERA
TION OF THIS ALARM AND WILL PREVENT ITS RESPONSE TO FIRE HAZARDS.

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10. Operation And Testing
Operation
The alarm is operating once it is activated and testing is complete (see “TESTING” below). When products of
combustion (smoke) are sensed, the unit sounds a loud alarm with voice messages. See Sections 1 and 2 for
alarm signal descriptions.
Testing
Test your alarm weekly by pressing and releasing the button quickly. A quick beep will confirm the button has
been pushed followed by the test sequence. See Other Alarm Visual and Audible Indicators table. The alarm and
voice (and any interconnected units) will sound if the electronic circuitry, horn, speaker, and battery are working.
If the alarm or voice does not sound, or gives erratic or low volume sound, the unit must be replaced. See Perma-
nently Disable Alarm / Discharge Battery section to determine how to prepare the unit for shipment or disposal.
WARNING: DUE TO THE LOUDNESS OF THE ALARM, ALWAYS STAND ABOUT 2.5 FEET AWAY
FROM THE UNIT OR USE EAR PROTECTION WHEN TESTING.
WARNING: DO NOT USE AN OPEN FLAME TO TEST YOUR ALARM, YOU COULD DAMAGE THE
ALARM OR IGNITE COMBUSTIBLE MATERIALS AND START A STRUCTURE FIRE.
Chirping
When End of Unit Life or Low Battery chirping begins, you can temporarily silence these chirps by pressing the
button.
WARNING: REPLACE UNIT AS SOON AS POSSIBLE WHEN IN END OF UNIT LIFE OR LOW BATTERY MODE.

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11. Recognizing Nuisance Alarms
Smoke Nuisance
HUSH®: If you know why the alarm is sounding, and you can verify that it is not a life threatening situation, you
can push the button on the initiating unit to silence the alarm for 8-10 minutes. If the smoke is not too dense,
that unit, and all interconnected units will silence. After the Hush® period, the smoke alarm will automatically
reset and sound the alarm if particles of combustion are still present. You can use Hush® repeatedly until the air
has been cleared of the condition causing the alarm.
NOTE: Dense smoke will override Hush® and sound a continuous alarm. If no fire is present, check to
see if one of the reasons listed in “Locations to avoid” may have caused the alarm. If a fire is discovered,
get out and call the fire department or 911.
This alarm is designed to minimize nuisance alarms. Cigarette smoke will not normally cause the unit to alarm,
unless the smoke is blown directly into the alarm. Combustion particles from cooking may set off the alarm if it
is located too close to a cooking appliance. Large quantities of combustible particles are generated from spills or
when broiling. Using the fan on a range hood which vents to the outside (non-recirculating type) will also help
prevent nuisance alarms from occurring by removing these combustible products from the kitchen.
Carbon Monoxide (CO) Nuisance
WARNING: THIS UNIT DOES NOT DETECT CO, BUT IT WILL TRANSMIT A CO ALARM SIGNAL FROM
AN INTERCONNECTED CO OR SMOKE/CO COMBINATION ALARM. IT IS IMPOSSIBLE TO DETERMINE
THE SOURCE OF A CO ALARM USING SIGHT OR SMELL. ALWAYS CONSIDER A CO ALARM EVENT AS
DANGEROUS.
•Pushing the button on the initiating CO or Smoke/CO combination alarm will silence that alarm and all
compatible interconnected units.
•Pushing the button on any hard-wire smoke alarm will do nothing to silence an interconnected CO alarm.

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12. Battery Backup
This alarm is powered with AC power, but also contains a sealed lithium battery backup system. No battery
installation or replacement is necessary for the life of the alarm.
NOTE: AC power must be connected to obtain the full 10 year battery and unit life. Constant exposure
to high or low humidity or temperatures may reduce battery life.
WARNING: NO SERVICEABLE PARTS INCLUDED. DO NOT ATTEMPT TO OPEN THE ALARM FOR
ANY REASON! DO NOT TRY TO REPAIR THE ALARM YOURSELF.
Low Battery
This alarm is equipped with a low battery monitor circuit. If the battery capacity is nearing the point where it can
no longer provide adequate power for all alarm functions, the low battery condition will occur. See Trouble-
shooting Guide. The unit must be replaced within 7 days of the first occurrence of the “Low Battery Warning” to
provide continuous alarm protection.
CAUTION: THE BATTERY USED IN THIS DEVICE MAY PRESENT A FIRE OR CHEMICAL BURN
HAZARD IF MISTREATED. DO NOT RECHARGE, DISASSEMBLE, HEAT ABOVE 100°C 212°F OR
DISPOSE OF IN FIRE.