Thank you for purchasing the Kidde Combination Smoke and
Carbon Monoxide Alarm model # KN-COSM-I or # KN-COSM-IB.
This alarm is suitable as a Single Station and/or Multiple Station
(24 devices) alarm. 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 installation of your alarm, please call our
toll free Consumer Hotline at 1-800-880-6788. The guide on
Page 29 will help you determine the correct location of safety
products that will help keep your home a safer place.
Introduction
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 1
Product View
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pages 2-3
Features
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pages 4-7
Installation Instructions
Step 1 Installation Instructions:
A. Recommended Installation Locations . . . . . . Pages 8-10
B. Where Not to Install . . . . . . . . . . . . . . . . . . . . Page 11-12
Step 2 Wiring Instructions . . . . . . . . . . . . . . . . . . . Page 12-13
Step 3 Mounting Instructions. . . . . . . . . . . . . . . . . Page 14-15
Step 4 Testing the Alarm . . . . . . . . . . . . . . . . . . . . . Page 16
Operating Instructions
Interconnect Feature . . . . . . . . . . . . . . . . . . . . . . . . Page 17
HUSH Control Feature . . . . . . . . . . . . . . . . . . . . . . . Page 18
Reset Feature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 18
Peak Level Memory . . . . . . . . . . . . . . . . . . . . . . . . . Page 19
LED Indicator Operation . . . . . . . . . . . . . . . . . . . . . Page 19
Tamper Resist Feature . . . . . . . . . . . . . . . . . . . . . . . Page 20
What to do if the Alarm Sounds
Smoke Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pages 21-22
Carbon Monoxide Alarm . . . . . . . . . . . . . . . . . . . . . Pages 22-23
Alarm Removal/Battery Replacement
. . . . . . . . . Pages 23-25
General Alarm Maintenance
. . . . . . . . . . . . . . . . . . Pages 26
Carbon Monoxide Safety Information
General CO Information . . . . . . . . . . . . . . . . . . . . . Page 27
Possible Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 27
CO Safety Tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 28
Symptoms of CO Poisoning . . . . . . . . . . . . . . . . . . Page 28
Fire Safety Information
Escape Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 29-30
Fire Prevention . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 30
Industry Safety Standards
National Fire Protection Association . . . . . . . . . . . Page 30
California State Fire Marshall . . . . . . . . . . . . . . . . . . Page 31
Consumer Product Safety Commission. . . . . . . . . . Page 31
NRC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 32
Limited Warranty and Service Information
. . . . Pages 32-34
Product Registration
. . . . . . . . . . . . . . . . . . . . . . . . . Page 34
Table of Contents
Introduction
1