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Plug-In Carbon Monoxide & Natural Gas Alarm
THANK YOU for purchasing this combination alarm. It is designed to detect carbon monoxide and
natural gas (methane) which reaches the sensor. It is not designed to detect fire, heat, flames or
any other gas. This manual includes important information regarding where to install the alarm,
how to operate, maintenance, testing and product features. It also includes tips and information
which could help protect you and your family.
What You Should Know About CO .......................................... 2
What You Should Know About Natural Gas ............................. 2
Basic Safety Information ......................................................... 3
Recommended Location of Alarms .......................................... 4
Avoid These Locations ............................................................ 4
How to Install .......................................................................... 5
Reset Feature ......................................................................... 6
Operation & Alarm Characteristics .......................................... 6
What To Do If The Alarm Sounds ............................................. 7
CO Alarm Silence Feature ....................................................... 7
Testing & Maintenance ............................................................ 8
Battery Replacement .............................................................. 8
CO & Natural Gas Alarm Limitations ....................................... 9
Operational Summary ............................................................11
Warranty ................................................................. Back Cover
Models MCN400, MCN400L,
MCND401, MCND401L
Models MCN600, MCN600L,
MCND601, MCND601L
with Backup Battery Protection
120 VAC, 60 Hz, 100 mA Maximum
PLEASE READ AND SAVE!
Table of Contents:
Certified to Standards
UL 2034 & UL 1484
Single Station
Carbon Monoxide Alarm
Also Suitable as a
Residential Gas Detector
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Related Manuals for Universal Security Instruments MCN400
Summary of Contents for Universal Security Instruments MCN400
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Page 1: Table Of Contents
Certified to Standards Models MCN400, MCN400L, UL 2034 & UL 1484 MCND401, MCND401L Models MCN600, MCN600L, MCND601, MCND601L Single Station Carbon Monoxide Alarm Also Suitable as a Residential Gas Detector Plug-In Carbon Monoxide & Natural Gas Alarm with Backup Battery Protection... -
Page 2: What You Should Know About Co
WHAT YOU SHOULD KNOW ABOUT CO Carbon monoxide (CO) is an insidious poison. It is a colorless, odorless, tasteless gas. It is a cumulative poison. Even low levels of CO have been shown to cause brain and other vital organ damage in unborn infants with no effect on the mother. -
Page 3: Basic Safety Information
INSTALLATION RECOMMENDATIONS Natural gas (methane) is typically supplied through a main utility line connected to your home. Early warning is best achieved by the installation of alarms on all floors and areas of the household. WHERE THIS ALARM SHOULD BE INSTALLED •... -
Page 4: Recommended Location Of Alarms
RECOMMENDED PLACEMENT: NOTE: For any location, make sure no door or other obstruction could prevent the carbon monoxide or gas from reaching the alarm. WHERE THIS ALARM SHOULD NOT BE INSTALLED To avoid causing damage to the unit, to provide optimum protection, and to prevent unnecessary alarms. -
Page 5: How To Install
• Good ventilation is recommended when household cleaning supplies or similar contaminants are used. • 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/ ... -
Page 6: Reset Feature
IMPORTANT! The battery backup is designed to provide short-term emergency power to the CO and Gas Alarm. Actual backup time depends on the strength (freshness) of the battery. The battery backup will not work unless a good battery is properly installed. When the alarm utilizes battery backup power, the natural gas sensor will operate the alarm and will sample less frequently to extend battery life. -
Page 7: What To Do If The Alarm Sounds
Some individuals are more sensitive to CO than others, including people with cardiac or respiratory problems, infants, unborn babies, pregnant mothers or elderly people can be more quickly and severely affected by CO. Members of sensitive populations should consult their doctors for advice on taking additional precautions. -
Page 8: Testing & Maintenance
WEEKLY TESTING This alarm is designed to act as a monitor, not for use as a short-term testing device to perform a quick check for the presence of CO or gas. WARNING: Natural gas (methane) is highly explosive. An attempt to test the unit by exposing it to natural gas outside of a controlled laboratory environment can produce an explosion and death. -
Page 9: Co & Natural Gas Alarm Limitations
Use only the batteries specified. Use of different batteries may have a detrimental effect on the CO/Gas alarm. The constant exposures to high or low temperatures or high humidity may reduce battery life. IMPORTANT! The battery backup is designed to provide short-term emergency power to the alarm. Actual backup time depends on the strength (freshness) of the battery. - Page 10 HOW CAN I PROTECT MY FAMILY FROM CO POISONING? This alarm is an excellent means of protection. It monitors the air and sounds a loud alarm before carbon monoxide levels become threatening to the average, healthy adult. An alarm is not a substitute for proper maintenance of home appliances. To help prevent CO problems and reduce the risk of CO poisoning: Clean chimneys and flues yearly.
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Page 11: Operational Summary
OPERATIONAL SUMMARY AUDIBLE & VISUAL SIGNALS CONDITION / RECOMMENDATION POWER HORN GREEN LED BLUE LED RED LED Silent On and Blinks Condition: AC Power is present. DC power is present. Off approx every Recommendation: None, alarm is operating properly. 20 seconds Silent Off and Blinks Condition: Alarm is powered by battery backup. -
Page 12: Warranty
MODELS MCN400, MCN400L, MCN600, MCN600L MODELS MCND401, MCND401L, MCND601, MCND601L USI ELECTRIC, INC. / UNIVERSAL SECURITY INSTRUMENTS, INC. (“USI”) warrants your product to be free from defects in material and workmanship for a period of five (5) years from the date of purchase. This warranty shall not apply to any batteries used in the product or to any damage which may be caused by such batteries.