Smoke and Carbon Monoxide Alarm

Combination

Smoke and

Carbon Monoxide

Alarm

Manual P/N 820-1417 Rev. C 2505-7231-01

For questions concerning your Smoke and Carbon Monoxide

Alarm, please call our Consumer Hotline at 1-800-880-6788.

User’s Guide for Model KN-COSMXTR-B

• Nuisance Alarm Reduction

• Advanced Ion Fire

Detection

• Battery Operated

• 2-LED Display

• Hush

• Peak Level Memory

For your convenience, write down the following information. If you call

our consumer hotline, these are the first questions you will be asked:

Alarm Model Number

(located on back of the alarm):

Date of Manufacture

(located on back of the alarm):

Date of Purchase:

Where Purchased:

ATTENTION: Please take a few minutes to thoroughly read this user’s

guide which should be saved for future reference and passed on to any

subsequent owner.

Introduction............................... 1

Product View.............................. 2

Features .................................. 4

Operating/Installation Instructions

Step 1: Installing Batteries ................... 8

Step 2: Installation Instructions:

A. Recommended Installation Locations....... 9

B. Where Not to Install ................... 12

C. How to Install ........................ 13

D. Tamper Resist Feature .................. 15

Step 3: Testing the Alarm ................... 16

Step 4: Hush

Control Feature ................ 17

Step 5: Peak Level Memory .................. 17

What to do if the Alarm Sounds

Smoke Alarm............................. 18

Carbon Monoxide Alarm .................... 20

Alarm Response Times ...................... 21

Battery Replacement ....................... 21

General Alarm Maintenance ................. 22

Carbon Monoxide Safety Information

General CO Information .................... 23

Possible Sources........................... 23

CO Safety Tips............................ 24

Symptoms of CO Poisoning .................. 24

Fire Safety Information

Escape Plan .............................. 25

Fire Prevention............................ 26

Industry Safety Standards

National Fire Protection Association ............ 27

California State Fire Marshall ................. 27

Consumer Product Safety Commission ......... 28

NRC.................................... 28

Warranty and Service Information ............ 29

Table of Contents

Thank you for purchasing the Kidde Combination Smoke and

Carbon Monoxide Alarm model KN-COSMXTR-B. This alarm

has a seven-year limited warranty. Please take a few minutes

to thoroughly read this user’s guide, and save for future

reference. Teach children how to respond to the alarms, and

that they should never play with the unit.

Your Kidde Smoke/CO Alarm was designed to detect

both smoke and carbon monoxide from any source

of combustion in a residential environment. It is not

designed for use in a recreational vehicle (RV) or boat.

If you have any questions about the operation or installation

of your alarm, please call our toll free Consumer Hotline

at 1-800-880-6788. The guide on page 26 will help you

determine the correct location of safety products that will

help keep your home a safer place.

Introduction

FRONT

Test/Reset/Hush

Button

Red LED

(Light Emitting Diode)

Green LED

(Light Emitting Diode)

Alarm Sounder

Product View

BACK

Battery Chamber

Battery Placement

INST ALL

THIRD

INST ALL

SECOND

INST ALL

FIRST

W ARNING:

BA TTERIES

HA VE BEEN

REMOVED

AA Battery

Battery

Product View

 • Permanentindependentsmokeandcarbonmonoxide

sensors.

 • Smoke alarm takes precedence when both smoke

and carbon monoxide are present.

 • Alarm/Voicemessagewarningsystemthatalertsyouof

the following conditions in the manner described

below, thus eliminating any confusion over which

alarm is sounding:

– FIRE: The alarm/voice pattern is three long alarm

beeps followed by the verbal warning message

“FIRE! FIRE!”. This pattern is repeated until the

smoke is eliminated. The red LED light will flash

while in alarm/voice mode.

– CARBON MONOXIDE: The alarm/voice pattern is

four short alarm beeps followed by the verbal

warning message “WARNING! CARBON

MONOXIDE!”. After four minutes the alarm/voice

pattern will sound once every minute until the

unit is reset, or the CO eliminated. The red LED

light will flash while in alarm/voice mode.

– LOW BATTERY: When the batteries are low and

need replacing the red LED light will flash and the

unit will “chirp” one time, followed by the warning

message “LOW BATTERY”. This cycle will occur once

every minute for the first hour. After the first hour

the red LED light will continue to flash every minute

accompanied by the “chirp” only sound. The voice

message “LOW BATTERY” will sound once every

fifteen minutes during the “chirp” only cycle.

This will continue for at least seven days.

 • One“chirp”every30secondsisanindicationthat

the alarm is malfunctioning. If this occurs call the

Consumer Hotline at 1-800-880-6788.

 • After seven (7) years of cumulative power up, this unit

will “chirp” twice every 30 seconds. This is an “opera-

tional end of life” feature which will indicate that it is time

to replace the alarm.

Features

• Loud85decibelalarm

 • Nuisancealarmreduction

 • Advancedionfiredetection

 • Oversizedtestbuttonforeasyactivation

 • Testbuttonperformsthefollowingfunctions:

– Tests the units electronics and verifies proper unit

operation

– Resets the unit during CO alarm

– Peak Level Memory (see page 16)

– Activates or Cancels Hush

Feature (see page 16)

 • Mountingbracketdesignedforeasyorientation

of the unit

 • GreenandredLEDlightsthatindicatenormal 

operation and alarm status

– Green Light: The green LED light flashes every 30

seconds to indicate the unit is operating properly

and once every 2 seconds to indicate the unit is in

HUSH

mode. The green light also flashes before a

CO reading is taken and when any button is

pressed.

– Red Light: When a dangerous level of smoke or

carbon monoxide is detected the red LED light will

flash and the corresponding alarm pattern

(depending on the source) will sound. If the unit

malfunctions, the red LED light will flash and the

unit will chirp every 30 seconds indicating a system

problem.

 • Poweredbythree(3)AAbatteries

 • Batterylockoutsystemthatprohibitsinstallation

without using three batteries

 • TamperResistFeaturethatdeterschildrenandothers

from removing the alarm

Features

Smoke Alarm

The smoke alarm monitors the air for products of combustion

that are produced when something is burning or smoldering.

When smoke particles in the smoke sensor reach a specified

concentration, the alarm/voice message warning system will

sound, and be accompanied by the flashing red LED light.

The smoke alarm takes precedence when both smoke

and carbon monoxide are present.

NFPA 72 states: 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. Fire warning systems for dwelling units

are capable of protecting about half of the occupants in

potentiallyfatalfires.Victimsareoftenintimatewiththefire,

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, other strategies

such as protection-in-place or assisted escape or rescue are

necessary.

 •Smokealarms are devices that can provide early warn

ing of possible fires at a reasonable cost; however,

  alarmshavesensinglimitations.Ionizationsensing

alarms may detect invisible fire particles (associated

with fast flaming fires) sooner than photoelectric

alarms. Photoelectric sensing alarms may detect visible

fire particles (associated with slow smoldering fires)

  soonerthanionizationalarms.Homefiresdevelopin

different ways and are often unpredictable. For

maximum protection, Kidde recommends that both

  IonizationandPhotoelectricalarmsbeinstalled.

 •Abatterypoweredalarmmusthaveabatteryofthe

specified type, in good condition and installed properly.

 •ACpoweredalarms(withoutbatterybackup)willnot

operate if the AC power has been cut off, such as by

an electrical fire or an open fuse.

 •Smokealarms must be tested regularly to make sure

the batteries and the alarm circuits are in good

operating condition.

Smoke Alarm Features

 •Smokealarmscannotprovideanalarmifsmokedoes

not reach the alarm. Therefore, smoke alarms may not

sense fires starting in chimneys, walls, on roofs, on the

other side of a closed door or on a different floor.

 •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.

 •Althoughsmokealarmscanhelpsavelivesby 

providing an early warning of a fire, they are not a

substitute for an insurance policy. Home owners and

renters should have adequate insurance to protect their

lives and property.

Carbon Monoxide (CO) Alarm

The carbon monoxide (CO) alarm monitors the air for the

presence of CO. It will alarm when there are high levels

of CO present, and when there are low levels of CO

present over a longer period of time. When a CO condition

matches either of these situations, the alarm/voice message

warning system will sound, and be accompanied by the

flashing red LED light. The carbon monoxide sensor uses an

electrochemical technology.

CAUTION: This alarm will only indicate the presence of

carbon monoxide gas at the sensor. Carbon monoxide

gas may be present in other areas.

Individuals with medical problems may consider using

warning devices which provide audible and visual signals for

carbon monoxide concentrations under 30 ppm.

Carbon Monoxide Alarm Features

Step 1: Installing Batteries

Batteries were not installed at the factory and must

be installed for the unit to operate! Install the three (3)

AA batteries in the back of the Smoke/CO Alarm.

 •Themountingplatemustberemovedfromthebackof

the unit to install batteries. To remove, hold the

mounting plate and twist counterclockwise (left).

 •

The battery polarity markings

on the bottom of the battery

compartment must be adhered to.

 •Batteriesmustbeinstalledinthe

sequence shown. If the batteries

seem difficult to install, they’re

not being installed in the proper

sequence.

 •Smoke/COAlarmwillnotengagetobracketunless

all three batteries are installed. Removal of any or all

batteries will render the Smoke/CO Alarm inoperative!

 •Afterthebatteriesarecorrectlyinstalledtheunit

will beep once and the red LED light will flash. After

20-30 seconds the green LED light will flash indicating

the unit is now operational.

CAUTION: Your Smoke/CO Alarm is sealed and the

cover is NOT removable!

Operating and Installation Instructions

Batteries Must Be Installed in Order Shown Below:

Install

First

Install

Second

Install

Last

INST ALL

THIRD

INST ALL

SECOND

INST ALL

FIRST

W ARNING:

BA TTERIES

HA VE BEEN

REMOVED

AA Battery

Battery

Step 2: Installation Instructions

IMPORTANT: THIS ALARM MUST BE MOUNTED ON A

CEILING OR WALL. IT WAS NOT DESIGNED FOR USE

AS A TABLETOP DEVICE! INSTALL ONLY AS DETAILED!

A. Recommended Installation Locations:

Kidde recommends the installation of a Smoke/CO Alarm

in the following locations. For maximum protection we

suggest an alarm be installed on each level of a multilevel

home, including every bedroom, hallways, finished attics

and basements. Put alarms at both ends of bedroom,

hallway or large room if hallway or room is more than

30 ft. (9.1m) long. If you have only one alarm, ensure it is

placed in the hallway outside of the main sleeping area, or

in the main bedroom. Verify the alarm can be heard in all

sleeping areas.

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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.

When mounting an alarm on the ceiling, locate it at a

minimum of 4” (10cm) from the side wall (see diagram

A). If installing the alarm on the wall, use an inside wall

with the top edge of the alarm at a minimum of 4” (10cm)

and a maximum of 12” (30.5cm) below the ceiling (see

Diagram A).

Operating and Installation Instructions

Sloped Ceiling Installation:

The following information is from the National Fire Protection

Association and is listed in Fire Code 72. Install Smoke Alarms

on sloped, peaked or cathedral ceilings at, or within 3 ft

(0.9m)ofthehighestpoint(measuredhorizontally).NFPA72

states “Smoke alarms in rooms with ceiling slopes greater

than1ftto8ft(.3m-2.4m)horizontallyshallbelocatedon

the high side of the room”. NFPA 72 states “A row of alarms

shall be spaced and located within 3 ft (0.9 m) of the peak of

theceilingmeasuredhorizontally”(Seefigure2).

FIGURE 1

Operating and Installation Instructions

Mobile Homes:

Modern mobile homes have been designed and built to be

energy efficient. Install Smoke/CO alarms as recommended

above (refer to Recommended Installation Instructions and

figure 1). In older mobile homes that are not well insulated,

extreme heat or cold can be transferred from the outside

to the inside through poorly insulated walls and roof. This

may cause a thermal barrier, which can prevent smoke from

reaching an alarm mounted on the ceiling. In such mobile

homes install your Smoke/CO Alarm on an inside wall with

the top edge of the alarm at a minimum of 4 inches (10cm)

and a maximum of 12 inches (30.5cm) below the ceiling

(See figure 1). 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, install your alarm on an inside

wall ONLY!

THIS EQUIPMENT SHOULD BE INSTALLED IN

ACCORDANCE WITH THE NATIONAL FIRE PROTECTION

ASSOCIATION’S STANDARD 72 (National Fire Protection

Association, Batterymarch Park, Quincy, MA 02269).

FIGURE 2

Operating and Installation Instructions

B. Where Not to Install:

Do not install in garages, kitchens, furnace rooms or

bathrooms! INSTALL AT LEAST 5 FEET AWAY FROM

ANY FUEL BURNING APPLIANCE.

Do not install within 3 ft (.9m) of the following: The door

to a kitchen, or a bathroom that contains 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.

Avoid excessively dusty, dirty or greasy areas. Dust, grease or

household chemicals can contaminate the alarm’s sensors,

causing it to not operate properly.

Place the alarm where drapes or other objects will not block

the sensors. Smoke and CO must be able to reach the sensors

to accurately detect these conditions. Do not install in peaks

of vaulted ceilings, “A” frame ceilings or gabled roofs (see

diagram A). Keep out of damp and humid areas.

WARNING - This product is intended

for use in ordinary indoor locations of

family living units. It is not designed to

measure compliance with Occupational

Safety and Health Administration (OSHA)

commercial or industrial standards.

Operating and Installation Instructions

Install at least one (1) foot away from fluorescent lights,

electronic noise may cause nuisance alarms. Do not place

in direct sunlight and keep out of insect infested areas.

Extreme temperatures will effect the sensitivity of the Smoke/

CO Alarm. Do not install in areas where the temperature

is colder than 40 degrees Fahrenheit (4.4 Celsius) or hotter

than 100 degrees Fahrenheit (37.8 Celsius), such as garages

and unfinished attics. Do not install in areas where the

relative humidity (RH) is above 85%. Place away from doors

and windows that open to the outside.

Smoke alarms are not to be used with detector guards unless

the combination (alarm and guard) has been evaluated and

found suitable for that purpose.

C. How to Install:

To help identify the date to replace the unit, a label has been

affixed to the side of the alarm. Write the “Replace by”

date (7 years from initial power up) in permanent marker

on the label. See Alarm Replacement section for additional

information.

Remove mounting plate from the back of the unit by holding

the rim of the mounting plate and twisting counterclockwise

(left). See Diagram C. Hold the mounting plate against the

selected installation location (wall or ceiling) and mark the

center of the holes with a pencil.

Install

Remove

Mounting

Plate

DIAGRAM C

Operating and Installation Instructions

Drill a hole through the pencil

marks and use the enclosed

screws and anchors (see

diagram E) to secure (use 3/16”

drill bit for anchor holes). Align

the Smoke/CO Alarm with the

mounting plate and rotate

clockwise (right) until the unit

is aligned. Screw and anchor

accessories are supplied.

To ensure aesthetic alignment of the alarm with the hallway

or wall, the “A” line on the mounting plate should be parallel

withthehallwaywhenceilingmounting,orhorizontalwhen

wall mounting. See Diagram D.

Two labels are included with your alarm. They have important

information on what to do in case of an alarm. Add the

phone number of your emergency provider (Fire Department

or 911) in the space provided. Place one label next to the

alarm after it is mounted, and one label near a fresh air

source such as a door or window.

DIAGRAM D

DIAGRAM E

Operating and Installation Instructions

D. Tamper Resist Feature:

To make your smoke alarm tamper resistant, a tamper

resist feature has been provided. Activate the tamper resist

feature by breaking off the four posts in the square holes

in the trim ring (see figure A). When the posts are broken

off, the tamper resist tab on the base is allowed to engage

the mounting bracket. Rotate the alarm onto the mounting

bracket until you hear the tamper resist tab snap into place,

locking the alarm on the mounting bracket. Using the

tamper resist feature will help deter children and others

from removing the alarm from bracket. NOTE: To remove the

alarm when the tamper resist tab is engaged, press down on

the tamper resist tab, and rotate the alarm off of the bracket

(see figure B).

FIGURE A

FIGURE B

Posts

Operating and Installation Instructions

Step 3: Testing the Alarm

The test button has four purposes. It tests the unit’s elec-

tronics, resets the alarm, activates the Hush® feature, and

activates the peak level memory.

CAUTION: Due to the loudness (85 decibels) of the

alarm, always stand an arms length away from the

unit when testing.

• To test: Press and release the test/reset button and a

series of beeps will sound, followed by the message

“Fire! Fire!”, then another two series of beeps and the

message “Warning! Carbon Monoxide”, followed by 4

additional short beeps.

• Reset: If the Smoke/CO Alarm is sounding a CO alarm,

pressing the test/reset button will silence the alarm. If the

CO condition that caused the alert continues, the alarm

will reactivate. Reactivation times depend on the amount

of CO present. See page 21.

• Hush

: If the Smoke/CO Alarm is sounding a Smoke

alarm, pressing the test/reset button will temporarily

silence the alarm. If the smoke level continues to build,

the alarm will reactivate. See Step 4: Hush

Control

Feature.

• Peak Level Memory: If the green LED is blinking once

every16seconds,theunithasdetectedahazardous

condition. If the unit has detected a CO level of 100

PPM or greater, pushing the Test/Reset button will result

in a voice message “Caution, carbon monoxide previ-

ously detected”. Peak level also happens if the unit

detects smoke and then comes out of alarm. However,

there is no voice message if the unit is in peak level due

to smoke. When the Test/Reset button is pushed, the

unit exhibits a normal PTT if in peak level due to smoke.

Weekly testing is required! If at anytime it does not

perform as described, verify the three batteries are i nstalled

correctly and that they don’t need replacing. Clean dust and

other buildup off the unit. If it still doesn’t operate properly

call the Consumer Hotline at 1-800-880-6788.

Operating and Installation Instructions

Step 4: Hush

Control Feature

The Hush

featurehasthecapabilityoftemporarilydesensitizing

the smoke alarm circuit for approximately 10 minutes. This

feature is to be used only when a known alarm condition,

such as smoke from cooking, activates the alarm. You can put

your Smoke/CO Alarm in Hush

mode by pushing the test/

reset button. The unit will give a voice message “Hush mode

activated.” If the smoke is not too dense, the alarm will silence

immediately and the green LED light will flash every 2 seconds

for approximately 10 minutes. This indicates that the smoke

alarmisinatemporarilydesensitizedcondition.YourSmoke/CO

Alarm will automatically reset after approximately 10 minutes.

When the unit returns to normal operation after being in Hush

mode the alarm will sound if smoke is still present. The Hush

feature can be used repeatedly until the air has been cleared

of the condition causing the alarm. While the unit is in Hush

mode, pushing the test/reset button on the alarm will also end

the Hush

period. The unit will give a voice message “Hush

mode cancelled.”

NOTE: DENSE SMOKE WILL OVERRIDE THE HUSH

CONTROL FEATURE AND SOUND A CONTINUOUS ALARM.

CAUTION: BEFORE USING THE ALARM HUSH

FEATURE,

IDENTIFY THE SOURCE OF THE SMOKE AND BE CERTAIN

A SAFE CONDITION EXISTS.

Step 5: Peak Level Memory

If the green LED is blinking once every 16 seconds, the unit has

detectedahazardouscondition.IftheCOsensorhasdetecteda

CO level of 100 PPM or higher since last reset, it will be recorded

by the Peak Level Memory function. To access the Peak Level

Memory press the test/reset button. If a reading of 100 PPM

or higher has been recorded the unit will give a voice message

“Caution, Carbon Monoxide previously detected.” If you’ve

been away from home this feature allows you to check if there

was a CO reading of 100 PPM, or higher, during your absence.

Pushing the test/reset button resets the memory. It’s also reset

when the batteries are removed. There is no voice message

associated with peak level due to smoke. When the test/reset

button is pushed, the unit exhibits a normal PTT if the peak level

is due to smoke.

Operating and Installation Instructions

NEVER IGNORE THE SOUND OF THE ALARM!

Determining what type of alarm has sounded is easy

with your Kidde Combination Smoke/CO Alarm. The voice

message warning system will inform you of the type of

situation occurring. Refer to the Features section on page 4

for a detailed description of each alarm pattern.

When the smoke alarm sounds:

Smoke alarms are designed to minimize false alarms.

Cigarette smoke will not normally set off the alarm, unless

the smoke is blown directly into the alarm. This unit contains

advanced technology designed to reduce nuisance alarms,

such as from cooking particles. However, large quantities

of combustible particles from spills or broiling could still

cause the unit to alarm. Careful location of the unit away

from the kitchen area will give the maximum nuisance alarm

protection. Combustion particles from cooking may set off

the alarm if located too close to the cooking area. 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 remove

these combustible products from the kitchen.

If the alarm sounds, check for fires first. If a fire is discovered

follow these steps. Become thoroughly familiar with these

items, and review with all family members!

 •Alertsmallchildreninthehome.Childrensleepvery

sound and may not be awakened by the sound of the

smoke alarms.

 • Leaveimmediatelyusingoneofyourplannedescape

routes (see page 25). Every second counts, don’t stop

to get dressed or pick up valuables.

 • Beforeopeninginsidedoorslookforsmokeseepingin

around the edges, and feel with the back of your hand

If the door is hot use your second exit. If you feel it’s

safe, open the door very slowly and be prepared to

close immediately if smoke and heat rush in.

 • Iftheescaperouterequiresyoutogothroughsmoke,

crawl low under the smoke where the air is clearer.

What To Do When The Alarm Sounds!

 • Gotoyourpredeterminedmeetingplace.Whentwo

people have arrived one should leave to call 911 from

a neighbor’s home, and the other should stay to

perform a head count.

 • Donotreenterunderanycircumstanceuntilfire

officials give the go ahead.

 • Therearesituationswhereasmokealarmmay

not be effective to protect against fire as noted

by the NFPA and UL. For instance:

- Smoking in bed.

- Leaving children unsupervised.

- Cleaning with flammable liquids, such as gaso-

line.

- Fires where the victim is intimate with a flaming

initiated fire; for example, when a person’s

clothes catch fire while cooking.

- Fires where the smoke is prevented from reach-

ing the detector due to a closed door or other

obstruction.

- Incendiary fires where the fire grows so rapidly

that an occupant’s egress is blocked even with

properly located detectors.

When the carbon monoxide alarm sounds:

If alarm signal sounds:

1) Operate the test/reset button

2) Call your emergency

services (Fire Dept. or 911)

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. Do not reenter the

premises nor move away from the open door/

window until the emergency services responders

have arrived, the premises has been aired out, and

your alarm remains in its normal condition.

4) After following steps 1-3, if your alarm reactivates

within a 24 hour period, repeat steps 1-3 and call

a qualified appliance

technician to investigate

for sources of CO from fuel burning equipment and

appliances, and inspect for proper operation of this

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’s directly,

for more information about CO safety and this

equipment. Make sure that motor vehicles are not,

and have not been, operating in an attached

garage or adjacent to the residence.

Never restart the source of a CO problem until it has

been fixed. NEVER IGNORE THE ALARM!

WARNING:

Actuation of your CO Alarm

indicates the presence of

Carbon Monoxide (CO)

which can kill you.

PHONE NUMBER

What To Do When The Alarm Sounds

The CO sensor meets the alarm response time requirements

of UL standard 2034. Standard alarm times are as follows:

At 70 PPM, the unit must alarm within 60-240 minutes.

At 150 PPM, the unit must alarm within 10-50 minutes.

At 400 PPM, the unit must alarm within 4-15 minutes.

This carbon monoxide alarm is designed to detect

carbon monoxide gas from ANY source of combustion.

It is NOT designed to detect any other gas.

Fire Departments, most utility companies and HVAC

contractors will perform CO inspections, some may charge

for this service. It’s advisable to inquire about any applicable

fees prior to having the service performed. Kidde will not pay

for, or reimburse, the owner or user of this product, for any

repair or dispatch calls related to the alarm sounding.

Battery Replacement

If any form of battery failure is detected the red LED light

will flash and the unit will “chirp” one time, followed by the

warning message “LOW BATTERY”. This cycle will occur once

every minute for the first hour. After the first hour, the red LED

light will continue flashing accompanied by the chirp only

sound every 60 seconds. The voice message “LOW BATTERY”

will sound once every fifteen minutes during the chirp only

cycle, and will continue for at least seven days.

If the red LED light flashes along with a chirp every

30 seconds, and is not followed by the voice message

“LOW BATTERY” as described above, your unit has

malfunctioned. Call our toll free Consumer Hotline at

1-800-880-6788 for instructions on how to return the unit.

Refer to Step 1 on page 8 for information on installing

the batteries.

Replace batteries with one of the following approved brands:

DuracellMN1500,MX1500orEnergizerE91.Thesebatteries

can be purchased at your local retailer.

Alarm Response Time

WARNING! Use only the batteries specified. Use of different

batteries may have a detrimental effect on the Smoke/CO

alarm. A good safety measure is to replace the batteries

twice a year, at the same time you change your clocks for

daylight saving time.

Alarm Replacement

Seven years after initial power-up, this unit will “chirp” twice

every 30 seconds to indicate that it is time to replace the

alarm. A label has been provided on the side of the alarm

that has “Replace by” printed on it. Write the replace by date

on the label. The date written on the label should be after

seven (7) years of cumulative power.

REPLACE IMMEDIATELY! IT WILL NOT DETECT CO IN

THIS CONDITION.

General Maintenance

To keep your Smoke/CO Alarm in good working order,

please follow these simple steps:

 • Verifyunitalarm,lightsandbatteryoperationby

pushing the test/reset button once a week.

 • Removetheunitfrommountingbracketandvacuum

the alarm cover and vents with a soft brush

attachment once a month to remove dust and dirt.

REINSTALL IMMEDIATELY AFTER CLEANING AND THEN

TEST USING THE TEST/RESET BUTTON! IF TAMPER

  RESISTFEATUREHASBEENACTIVATED,REFERTO

TAMPER RESIST FEATURE DESCRIPTION ON PAGE 15

  FORREMOVALINSTRUCTIONS.

 •Neverusedetergentorothersolventstocleantheunit.

 •Avoidsprayingairfreshener,hairspray,orother

aerosols near the Smoke/CO Alarm.

Do not paint the unit. Paint will seal the vents and interfere

with the sensor’s ability to detect smoke and CO. Never

attempt to disassemble the unit or clean inside. This action

Battery Replacement

will void your warranty. Move the Smoke/CO Alarm and

place in another location prior to performing any of the

following:

 •Stainingorstrippingwoodfloorsorfurniture

 •Painting

 •Wallpapering

 •Usingadhesives

Storing the unit in a plastic bag during any of the above

projects will protect the sensors from damage. Do not place

near a diaper pail.

WARNING: Reinstall the Smoke/CO Alarm as soon as

possible to assure continuous protection.

When household cleaning supplies or similar contaminates

are used, the area must be well ventilated. The following

substances can effect the CO sensor and may cause false

readings and damage to the sensor: Methane, propane,

iso-butane, iso-propanol, ethyl acetate, hydrogen sulfide,

sulfide dioxides, alcohol based products, paints, thinner,

solvents, adhesives, hair spray, after shave, perfume, and

some cleaning agents.

Carbon Monoxide Safety Information

General CO Information

Carbon Monoxide (CO) is a colorless, odorless, and tasteless

poison gas that can be fatal when inhaled. CO inhibits the

blood’s capacity to carry oxygen.

Possible Sources

CO can be produced when burning any fossil fuel: gasoline,

propane, natural gas, oil and wood. It can be produced by

any fuel-burning appliance that is malfunctioning, improperly

installed, or not ventilated correctly. Possible sources include

furnaces, gas ranges/stoves, gas clothes dryers, water

heaters, portable fuel burning space heaters, fireplaces,

wood-burning stoves and certain swimming pool heaters.

Blocked chimneys or flues, back drafting and changes in air

pressure, corroded or disconnected vent pipes, and a loose or

General Maintenance

crackedfurnaceexchangercanalsocauseCO.Vehiclesand

other combustion engines running in an attached garage

and using a charcoal/gas grill or hibachi in an enclosed area

are all possible sources of CO.

The following conditions can result in transient CO situations:

Excessive spillage or reverse venting of fuel-burning appliances

caused by outdoor ambient conditions such as: Wind

direction and/or velocity, including high gusts of wind, heavy

air in the vent pipes (cold/humid air with extended periods

between cycles), negative pressure differential resulting from

the use of exhaust fans, simultaneous operation of several

fuel-burning appliances competing for limited internal air,

vent pipe connections vibrating loose from clothes dryers,

furnaces, or water heaters, obstructions in, or unconventional,

vent pipe designs which can amplify the above situations,

extended operation of unvented fuel-burning devices (range,

oven, fireplace, etc.), temperature inversions which can trap

exhaust gasses near the ground, car idling in an open or

closed attached garage, or near a home.

CO Safety Tips

Every year have the heating system, vents, chimney and

flue inspected and cleaned by a qualified technician. Always

install appliances according to manufacturer’s instructions

and adhere to local building codes. Most appliances should

be installed by professionals and inspected after installation.

Regularly examine vents and chimneys for improper

connections, visible rust, or stains, and check for cracks in

furnaceheat exchangers. Verify thecolorofflame on pilot

lights and burners is blue. A yellow or orange flame is a sign

that the fuel is not burning completely. Teach all household

members what the alarm sounds like and how to respond.

Symptoms of CO Poisoning

Initial carbon monoxide poisoning symptoms are similar

to the flu with no fever and can include dizziness, severe

headaches, nausea, vomiting and disorientation. Everyone is

susceptible but experts agree that unborn babies, pregnant

women,seniorcitizensandpeoplewithheartorrespiratory

problems are especially vulnerable. If symptoms of carbon

Carbon Monoxide Safety Information

monoxide poisoning are experienced seek medical attention

immediately. CO poisoning can be determined by a

carboxyhemoglobin test.

The following symptoms are related to CARBON MONOXIDE

POISONING and should be discussed with ALL members of

the household:

1. Mild Exposure: Slight headache, nausea, vomiting,

fatigue (often described as “Flu-like” symptoms)

2. Medium Exposure: Severe throbbing headache,

drowsiness, confusion, fast heart rate

3. Extreme Exposure: Unconsciousness, convulsions,

cardiorespiratory failure, death

The above levels of exposure relate to healthy adults. Levels

differ for those at high risk. Exposure to high levels of

carbon monoxide can be fatal or cause permanent damage

and disabilities. Many cases of reported carbon monoxide

poisoning indicate that while victims are aware they are

not well, they become so disoriented they are unable to

save themselves by either exiting the building, or calling for

assistance. Also, young children and household pets may be

thefirsteffected.Familiarizationwiththeeffectsofeachlevel

is important.

Fire Safety Information

Escape Plan

Prepare and practice a home escape plan twice a year,

including drills at night. Know two ways out of every room

(door & window) and identify a meeting place outside the

home where everyone will gather once they have exited the

residence. When two people have reached the meeting place,

one should leave to call 911 while the second person stays to

account for additional family members. Establish a rule that

once you’re out, you never reenter under any circumstance!

Carbon Monoxide Safety Information

Fire Prevention

Never smoke in bed, or leave cooking food unattended.

Teach children never to play with matches or lighters! Train

everyoneinthehometorecognizethealarmpattern,voice

message warning and to leave the

home using their escape plan when

it’s heard. Know how to do “Stop,

Drop and Roll” if clothes catch on fire,

and how to crawl low under smoke.

Install and maintain fire extinguishers

on every level of the home and in the

kitchen, basement and garage. Know

how to use a fire extinguisher prior to

an emergency. Second level and higher

occupied rooms with windows, should

have an escape ladder.

Current studies have shown smoke alarms may not awaken

all sleeping individuals, and that it is the responsibility of

individuals in the household that are capable of assisting

others to provide assistance to those who may not be

awakened by the alarm sound, or to those who may be

incapable of safely evacuating the area unassisted.

Fire Safety Information

NFPA (National Fire Protection Association)

For your information, the National Fire Protection Association’s

Standard 72, reads as follows:

Smoke Detection. Where required by applicable laws, codes,

or standards for the specified occupancy, approved single- and

multiple-station smoke alarms shall be installed as follows: (1)

In all sleeping rooms Exception: Smoke alarms shall not be

required in sleeping rooms in existing one- and two-family

dwelling units. (2) Outside of each separate sleeping area, in

immediate vicinity of the sleeping rooms. (3) On each level of

the dwelling unit, including basements Exception: In existing

one- and two-family dwelling units, approved smoke alarms

Smoke Detection–Are More Smoke Alarms Desirable?

The required number of smoke alarms might not provide

reliable early warning protection for those areas separated

by a door from the areas protected by the required smoke

alarms. For this reason, it is recommended that the

householder consider the use of additional smoke alarms for

those areas for increased protection. The additional areas

include the basement, bedrooms, dining room, furnace

room, utility room, and hallways not protected by the

required smoke alarms. The installation of smoke alarms

in kitchens, attics (finished or unfinished), or garages is not

normally recommended, as these locations occasionally

experience conditions that can result in improper operation.

California State Fire Marshall

Early warning fire detection is best achieved by the installation

of fire detection equipment in all rooms and areas of the

household as follows: A smoke alarm installed in each

separate sleeping area (in the vicinity, but outside the

bedrooms), heat or smoke detectors in the living rooms,

dining rooms, bedrooms, kitchens, hallways, attics, furnace

rooms, closets, utility and storage rooms, basements and

attached garages.

Industry Safety Standards

Consumer Product Safety Commission

The Consumer Product Safety Commission (CPSC)

recommends the use of at least one CO Alarm per household,

located near the sleeping area.

NRC

Ionization type smoke alarms use a very small amount of

a radioactive element in the sensing chamber to enable

detection of visible and invisible combustion products. The

radioactive element is safely contained in the chamber

and requires no adjustments or maintenance. This smoke

alarm meets or exceeds all government standards. It is

manufactured and distributed under license from the U.S.

Nuclear Regulatory Commission.

Industry Safety Standards

SEVEN YEAR LIMITED WARRANTY

Kidde warrants that the enclosed alarm (but not the battery)

will be free from defects in material and workmanship or

design under normal use and service for a period of seven

years from the date of purchase. The obligation of Kidde

under this warranty is limited to repairing or replacing the

alarm or any part which we find to be defective in material,

workmanship or design, free of charge, upon sending the

alarm with proof of date of purchase, postage and return

postage prepaid, to Warranty Service Department, Kidde,

1016 Corporate Park Drive, Mebane, NC 27302.

This warranty shall not apply to the alarm if it has been

damaged, modified, abused or altered after the date

of purchase or if it fails to operate due to improper

maintenance or inadequate AC or DC power. Any implied

warranties arising out of this sale, including but not limited

to the implied warranties of description, merchantability and

fitness for a particular purpose, are limited in duration to the

above warranty period. In no event shall the Manufacturer

be liable for loss of use of this product or for any indirect,

special, incidental or consequential damages, or costs, or

expenses incurred by the consumer or any other user of this

product, whether due to a breach of contract, negligence,

strict liability in tort or otherwise. The Manufacturer shall

have no liability for any personal injury, property damage or

any special, incidental, contingent or consequential damage

of any kind resulting from gas leakage, fire or explosion.

Since some states do not allow limitations of the duration

of an implied warranty or do not allow the exclusion or

limitation of incidental or consequential damages, the above

limitations or exclusions may not apply to you. While this

warranty gives you specific legal rights, you may also have

other rights which vary from state to state.

Warranty and Service Information

Also, Kidde makes no warranty, express or implied, written

or oral, including that of merchantability or fitness for any

particular purpose, with respect to the battery.

The above warranty may not be altered except in writing

signed by both parties hereto.

Your Kidde Combination Smoke & CO Alarm is not a

substitute for property, fire, disability, life or other insurance

of any kind. Appropriate insurance coverage is your

responsibility. Consult your insurance agent. Removal of the

front cover will void the warranty.

This alarm is not intended to alert hearing impaired

individuals.

Service Information

During the specified warranty period Kidde will repair or

replace, at its discretion any defective Kidde Combination

Smoke & CO Alarms that are returned in a postage paid

package to the following address: Kidde, Attn: Warranty

Returns, 1016 Corporate Park Drive, Mebane, NC 27302,

USA. Please include your name, address and phone number

along with a brief description of what is wrong with the

unit. For further assistance please call our toll free Consumer

Hotline at 1-800-880-6788. Damage from neglect, abuse

or failure to adhere to any of the enclosed instructions will

result in termination of the warranty, and the unit will not be

replaced or repaired.

This manual and the products described herein are

laws, no part of this manual may be copied for use without the

written consent of Kidde. If you require further information

please contact out Consumer Hotline at 1-800-880-6788 or

write us at: Kidde, 1016 Corporate Park Drive, Mebane, NC

27302. Our internet address is www.kidde.com.

Warranty and Service Information

U.S. Patents 6,160,487 and 6,753,786

QUESTIONS OR FOR MORE INFORMATION

Call our Consumer Hotline at 1-800-880-6788 or contact

us at our website at www.kidde.com

Kidde, 1016 Corporate Park Drive, Mebane, NC 27302

Made in China