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Thank you for purchasing this Kidde Nighthawk™ Carbon
Monoxide Alarm. This alarm is suitable as a Single Station
and/or Multiple Station (24 devices) alarm.
Please take a few minutes to thoroughly read this manual,
which should be saved for future reference and
passed on to
any subsequent owner
. 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.
WARNING: This carbon monoxide alarm is not a substitute
for installing and maintaining an appropriate number of smoke
alarms in the house. This carbon monoxide alarm will not
sense smoke, fire or any poisonous gas other than carbon
monoxide. For this reason, you must install smoke alarms to
provide early warning of fire and to protect you and your fam-
ily from fire and its related hazards.
This carbon monoxide alarm is designed to detect carbon
monoxide from any source of improper or malfunctioning
appliance.
The installation of this device should not be used as a substi-
tute for proper installation, use and maintenance of fuel burn-
ing appliances, including appropriate ventilation and exhaust
systems.
Not suitable for installation in hazardous locations as defined
in the National Electric Code.
Alarm Manual
MODEL KN-COB-IC, P/N 900-0120, WITH 9V
BATTERY BACKUP
6 7542
Interconnecting
This CO Alarm is interconnectable with other multiple-
station Kidde and Nighthawk products (refer to list on
page 4). It is not designed to be interconnected with any
other manufacturer’s products.
• When compatible Kidde smoke alarms and heat alarms
are interconnected to your CO alarm, they will only
respond to a smoke or heat related event.
• When mixing Kidde alarms which have battery back-up
with models without battery back-up, be advised that
the models without battery back-up will not function
during an A.C. power failure.
• For alarms that are being used as single station alarms,
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.
• All interconnectable alarms should be installed on a UL
Listed or recognized junction box. All connections
should be made by a qualified electrician and must
conform to article 760 of the U.S. National Electrical
Code, NFPA 72 and/or any other codes having
jurisdiction in your area.
• The appropriate power source is 120 Volt AC Single-
Phase supplied from a non-switchable circuit, which is
not protected by a ground fault interrupter.
• When alarms are interconnected, all interconnected units
must be powered from a single circuit.
• A maximum of 24 Kidde 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.)
Locations To Avoid
To avoid causing damage to the unit, to provide optimum
performance, and to prevent unnecessary nuisance alarms:
• Do not install in kitchens, garages or furnace rooms that
may expose the sensor to substances that could damage
or contaminate it.
• Do not install in areas where the temperature is colder
than 40°F (4.4°C) or hotter than 100°F (37.8°C) such as
crawl spaces, attics, porches and garages.
• Do not install within 5-15’ of heating or cooking
appliances. (Kidde recommends 15 feet to prevent
nuisance alarms)
• Do not install near vents, flues, chimneys or any
forced/unforced air ventilation openings.
• Do not install near ceiling fans, doors, windows or areas
directly exposed to the weather.
• Do not install in dead air spaces, such as peaks of
vaulted ceilings or gabled roofs, where carbon
monoxide may not reach the sensor in time to provide
early warning.
• Do not install on a switched or dimmer-controlled
outlet.
• Do not install this unit near deep cell large batteries.
Large batteries have emissions that can cause the alarm
to perform at less than optimum performance.
• Do not obstruct the vents located on the alarm. Do not
place the alarm where drapes, furniture or other objects
block the flow of air to the vents.
This Kidde CO alarm can be used independently or
interconnected with other Kidde alarms. The alarms should
be mounted in or near bedrooms and living areas. It is
recommended that you install a Kidde CO alarm on each
level of your home.
When choosing your installation locations, make sure you
can hear the alarm from all sleeping areas. If you install
only one carbon monoxide alarm in your home, install the
alarm near bedrooms, not in the basement or furnace
room.
Recommended Installation Locations
CAUTION: This alarm will only indicate the presence of
carbon monoxide at the sensor. Carbon monoxide may be
present in other 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.
This device is designed to protect individuals from acute
effects of carbon monoxide exposure. It will not fully
safeguard individuals with specific medical conditions. If in
doubt, consult a medical practitioner. Individuals with
medical problems may consider using warning devices,
which provide audible and visual signals for carbon
monoxide concentrations under 30 ppm. This alarm has
not been investigated by UL for carbon monoxide
detection below 70 ppm.
IMPORTANT: Improper location can affect the sensitive
electronic components in this alarm. Please see the next
section describing locations to avoid.
Power:
120 volts AC, 60 Hz, 60 mA max, 9 volt battery back-up
Sensor:
Electrochemical
Temperature:
Operating Range: 40°F (4.4°C) to 100°F (37.8°C)
Humidity:
Operating range: 5-95% non-condensing
Alarm:
85+ dB at 10’ @ 3.4±0.5 KHz pulsing alarm
Interconnection:
Multiple-Station Interconnects directly with Kidde:
Ion smoke alarm models:
1235, 1235CA, 1275, 1275CA, 1276, 1276CA, 1285, 1285CA
Photo smoke alarm models:
PE120, PE120CA, PI2000, PI2000CA
Heat alarm models:
HD135F, HD135FCA
Carbon monoxide / Ion smoke alarm models:
KN-COSM-IB, KN-COSM-IBCA;
Carbon monoxide alarm models:
KN-COB-IC, KN-COP-IC, KN-COB-ICB, KN-COP-ICB
Relay models:
CO120X, SM120X
120 V A.C.
C
ARBON
M
ONOXIDE
A
LARM
with Interconnect
Manual P/N 810-1785 Rev.C
07/04
Specifications Installation Installation Installation
MODEL KN-COB-ICB, P/N 900-0167, NO
BATTERY BACKUP
3
Front Back
Red
Alarm
LED
AC Connector Pins
Battery Compartment
(Optional)
Green
Power
LED
Amber Trouble, or
Initiating Alarm LED
Tamper Resist Feature
Illustration