usi MCN108L Installation Instructions Manual

Carbon monoxide alarm and natural gas alarm with silence feature

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Table of Contents

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THANK YOU for purchasing this combination alarm. 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

Recommended Location of Alarms.........................................................2

Basic Safety Information.........................................................................3

Where Alarm Should Not Be Installed ....................................................4

Installation Instructions ...........................................................................5

Electrical Shock Hazard .........................................................................5

Locking / Tamper Feature .......................................................................5

Wiring Instructions ..............................................................................5, 6

Operation, Testing & Maintenance .........................................................7

QUICK FIND

What To Do If The Alarm Sounds ...........................................................8

CO Alarm Silence Feature ......................................................................9

Testing & Maintenance .....................................................................9, 10

Battery Backup Replacement ...............................................................10

CO & Natural Gas Alarm Limitations .................................................... 11

Operational Summary.....................................................................12, 13

Warranty ................................................................................ Back Cover

MODEL MCN108, MCN108L

CARBON MONOXIDE ALARM AND

NATURAL GAS ALARM

WITH SILENCE FEATURE

PLEASE READ AND SAVE!

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Summary of Contents for usi MCN108L

Page 1: Table Of Contents
MODEL MCN108, MCN108L CARBON MONOXIDE ALARM AND NATURAL GAS ALARM WITH SILENCE FEATURE PLEASE READ AND SAVE! THANK YOU for purchasing this combination alarm. 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.
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
• • An alarm should be centrally located outside of each separate sleeping area in the immediate vicinity of the bedrooms. Where bedrooms are separated and audibility of the alarm to occupants within the bedroom area could be seriously impaired, more than one alarm could be needed. escape route as the bedrooms are usually farthest from an exit.
Page 4: Where Alarm Should Not Be Installed
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: Installation Instructions
THIS ALARM WILL NOT WORK WITHOUT 120 VAC POWER AND A GOOD BATTERY PROPERLY INSTALLED. THE ALARM SHOULD BE TESTED WHEN INSTALLED AND THEN TESTED WEEKLY AFTER THAT. INSTALLATION INSTRUCTIONS: CAUTION!! READ CAREFULLY. Installation of this alarm must conform to the electrical codes in your area; Article 760 of the National Electrical Code, NFPA 72, 101;...
Page 6 All CO and natural gas alarms remain silent. NOTE: Alarms without battery backup will not respond during an AC power failure. NOTE: The relay, model USI-960, will not respond if a CO or natural gas alarm event initiates the alarm.
Page 7: Operation, Testing & Maintenance
120 VAC 60Hz 100mA Max. The yellow wire is used only for interconnect (multiple station operations) USI Electric or Universal model alarms. Connecting this yellow wire to any other circuits may result in damage and alarm malfunction. All interconnect alarms must be powered from a single circuit.
Page 8: Quick Find ® Alarm Originating Feature & Reset
GAS ALARM LATCHING LED INDICATOR: The alarm had previously detected GAS and had alarmed. The blue LED is off and blinks on approx. every 5 seconds until reset. Follow the reset instructions to remove the latching LED. TROUBLE / SERVICE ALARM: Periodically, the alarm measurement circuit is tested. If an error is detected, the alarm will sound 3 chirps approx.
Page 9: Co Alarm Silence Feature
• you plan to go to if the alarm sounds. WHAT TO DO IF NATURAL GAS IS DETECTED: If you hear the alarm horn sound approx. 1 beep, 2 second pause, repeat, gas has been detected. Evacuate everyone from the building. 1.
Page 10: Battery Backup Replacement
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 labatory environment can produce an explosion and death.
Page 11: Co & Natural Gas Alarm Limitations
CO AND NATURAL GAS ALARM LIMITATIONS Alarms have limitations. Like any other electronic device, CO and Natural Gas alarms are not foolproof. CO and Natural Gas alarms have a limited operational life. Your alarm must be tested weekly, test reveals a malfunction, immediately have the unit replaced (see last page for warranty information).
Page 12: 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 Recommendation: None every 20 seconds Silent Off and Blinks Condition: Alarm is powered by battery backup.
Page 13 OPERATIONAL SUMMARY (continued) AUDIBLE & VISUAL SIGNALS CONDITION / RECOMMENDATION POWER HORN GREEN LED BLUE LED RED LED Horn has On and Blinks Off and Blinks Condition: Latching CO LED indicator. The alarm has previously detected stopped Off approx On approx CO and had alarmed.
Page 14: Warranty
If this product is found to be defective, USI’s only obligation, and your exclusive remedy, is the repair or replacement of the product, at USI’s discretion, provided the product has not been damaged through misuse, abuse, accident, instructions supplied with the product.

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Mcn108