Kidde KN-COSM-B User manual

Combination
Smoke and
Carbon Monoxide
Alarm
Manual P/N 810-1191 Rev. G
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-COSM-B
• 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:
READ AND SAVE THIS USER’S GUIDE

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Product View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-7
Operating/Installation Instructions
Step 1: Installing Batteries . . . . . . . . . . . . . . . . . . . 8
Step 2: Installation Instructions:
A. Recommended Installation Locations . . . . . . 9-11
B. Where Not to Install . . . . . . . . . . . . . . . . . . . 12-13
C. How to Install . . . . . . . . . . . . . . . . . . . . . . . . 13-14
D. Tamper Resist Feature . . . . . . . . . . . . . . . . . . 15
Step 3: Testing the Alarm . . . . . . . . . . . . . . . . . . . 16
Step 4: Hush®Control Feature . . . . . . . . . . . . . . . . 16-17
Step 5: Peak Level Memory . . . . . . . . . . . . . . . . . . 17
What to do if the Alarm Sounds
Smoke Alarm. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-19
Carbon Monoxide Alarm . . . . . . . . . . . . . . . . . . . . 20-21
Battery Replacement . . . . . . . . . . . . . . . . . . . . . . . 21-22
General Alarm Maintenance . . . . . . . . . . . . . . . . . 22-23
Carbon Monoxide Safety Information
General CO Information . . . . . . . . . . . . . . . . . . . . 23
Possible Sources . . . . . . . . . . . . . . . . . . . . . . . . . . 23-24
CO Safety Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Symptoms of CO Poisoning . . . . . . . . . . . . . . . . . . 25
Fire Safety Information
Escape Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Fire Prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-27
Industry Safety Standards
National Fire Protection Association . . . . . . . . . . . . 27
California State Fire Marshall . . . . . . . . . . . . . . . . . 27
Consumer Product Safety Commission . . . . . . . . . 28
NRC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Limited Warranty and Service Information . . . . . 29-30
Table of Contents

Thank you for purchasing the Kidde Combination Smoke
and Carbon Monoxide Alarm model #KN-COSM-B. This
alarm has a five-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 installa-
tion 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
1

Product View
FRONT
Test/Reset/Hush
Button Red LED (Light Emitting Diode)
Green LED
(Light Emitting Diode)
Alarm Sounder
2

Product View
BACK
Battery Chamber
Battery Placement
3
3
2
1
INSTALL
THIRD
INSTALL
SECOND
INSTALL
FIRST
WARNING:
BATTERIES
HAVE BEEN
REMOVED
AA Battery
AA
AA
Battery
Battery

• 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.
Features
4

• After seven (7) years of cumulative power up, this unit
will “chirp” every 30 seconds. This is an "operational end
of life" feature which will indicate that it is time to replace
the alarm.
• Loud 85 decibel alarm
• 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 Hush®Feature (see page 17)
• Mounting bracket designed for easy orientation
of 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
5

Smoke Alarm
The smoke alarm monitors the air for products of combus-
tion that are produced when something is burning or smol-
dering. 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 occupan-
cies 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 inti-
mate with the fire, too old or young, or physically or men-
tally 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 Alarm Features
6

• Smoke alarms must be tested regularly to make sure
the batteries 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, 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 match-
es either of these situations, the alarm/voice message warn-
ing system will sound, and be accompanied by the flashing
red LED light. The carbon monoxide sensor uses an electro-
chemical technology.
CAUTION: This alarm will only indicate the presence
of carbon monoxide gas at the sensor. Carbon monox-
ide gas may be present in other areas.
Individuals with medical problems may consider using warn-
ing devices which provide audible and visual signals for car-
bon monoxide concentrations under 30 ppm.
Carbon Monoxide Alarm Features
7

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
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
8
Batteries Must Be Installed in Order Shown Below:
Install
First
Install
Second
Install
Last
3
2
1
INSTALL
THIRD
INSTALL
SECOND
INSTALL
FIRST
WARNING:
BATTERIES
HAVE BEEN
REMOVED
AA Battery
AA
AA
Battery
Battery
3
2
1
1
2
3