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TEST SEQUENCE:  

The horn beeps 3 times with a 6 second pause and then beeps 4. 

The green LED is on. The red smoke LED blinks on in synch with the 3 beeps. The red CO 

LED blinks in sync with the 4 beeps.  

This alarm incorporates the NFPA recognized horn signal for evacuation.

 

LOCAL ORIGINATING SMOKE ALARM CONDITION:

 The horn beeps 3 times 

with a 2 second pause and continues until the air is cleared.  The green LED is on.  The red 

smoke LED blinks on in synch with the 3 beeps.  The red CO LED is off.  

NON-ORIGINATING SMOKE ALARM CONDITION:

 Another interconnected alarm 

has sensed smoke, causing all the other interconnected alarms to sound.  The horn beeps 3 

times with a 2 second pause and continues until the air is cleared.  The green LED is on.  The 

red smoke LED is off.  The red CO LED is off.  

LOCAL ORIGINATING CO ALARM CONDITION: 

The horn beeps 4 times with a 5 

second pause and continues until the air is cleared.  The green LED is on.  The red smoke 

LED blinks on every two minutes.  The red CO LED blinks on in sync with the 4 beeps.

NON-ORIGINATING CO ALARM CONDITION: 

Another interconnected alarm has 

sensed CO, causing all the other interconnected alarms to sound. The horn beeps 4 times 

with a 5 second pause and continues until the air is cleared. The green LED is on.  The red 

smoke LED blinks on approximately every two minutes. The red CO LED is off.  

SENSOR TROUBLE: 

This alarm contains multiple self-diagnostics.  If a sensor fault is 

detected, the horn chirps 3 times approximately every 60 seconds.  The green LED is on.  The 

red smoke LED blinks on once approximately every two minutes.  The red CO LED is off.  The 

trouble signal cannot be silenced.  Reset the alarm.  If this does not clear this trouble signal, 

deactivate the alarm. Refer to the “alarm deactivation section.”  Replace alarm immediately.  

RESET ALARM:

 Press the test/silence button on any alarm for 10-15 seconds, then 

release.  This will clear the alarm origination.  Be sure to reset alarms after every alarm event.  

QUICK FIND

®

 ALARM ORIGINATION FEATURE:

  To quickly identify the originating alarm 

(the first alarm to sound in an interconnected system) after all the alarms have stopped sounding
1. Press and release the test/silence button on any interconnected alarm.  After releasing the 

button, the test sequence will sound on all the interconnected alarms and last for approxi-

mately 5-20 seconds.  

2. Once the test sequence ends, the originating alarm will continue to sound for approximately 

60 seconds which provides ample time to locate the originating alarm.

3. Remember to reset the originating alarm in order to clear the Quick Find

®

 and return the 

system to normal operation

4. NOTE:  In a non-interconnected installation, it is necessary to test each alarm by pressing 

and releasing the test/silence button to determine the originating alarm.

PRODUCT END-OF-SERVICE LIFE ALARM/LOW BATTERY WARNING: 

When 

it is time to replace this alarm, which is approximately 10 years of operation from initial power 

up, the alarm will provide audible and visual warnings. The product end-of-service life warning 

cannot be silenced. The horn chirps 2 times approximately every 60 seconds.  The green LED 

is on.  The red smoke LED blinks on approximately every 2 minutes.  The red CO LED is off.  

Deactivate the alarm. Refer to the “alarm deactivation section.” Replace alarm immediately.  

USING THE SILENCE FEATURE

  

NEVER ignore any alarm.

 If the alarm sounds and it is not being 

tested, it is warning of a potentially dangerous situation which requires immediate attention. 

NEVER disconnect the power to your alarm to silence the horn—use the Silence feature. 

Disconnecting the alarm removes your protection!  

IMPORTANT! The Silence feature is intended to temporarily silence the alarm warning.

  

It will not correct a smoke or CO problem. 

This alarm will not operate until it is activated and properly installed. This alarm should 

be tested immediately after installation and then tested weekly after that. If the alarm 

ever fails to test correctly, have it replaced immediately. If the alarm is not working prop-

erly, it cannot alert you to a problem. This alarm must have 120 Volt AC and activated 

sealed battery power to operate properly. If the battery is dead or deactivated, the alarm 

will not operate properly. The sealed battery cannot be replaced. The cover of this 10 

year permanent power tamper proof alarm is sealed, and cannot be removed.

ALARM OPERATION (continued)

Summary of Contents for MPC122S

Page 1: ...ere This Alarm Should Not Be Installed 5 Mounting Instructions 6 Tamper Resistant Alarm Locking Feature 6 Wiring Instructions 7 Stand Alone Alarm Installations 7 Interconnected Alarm Installations 8 I...

Page 2: ...a safer greener alternative Quick Find Alarm Origination Feature easily identifies first alarm to sound in an intercon nected system ALARM LIMITATIONS AND FUNCTIONS IMPORTANT ALARMS WILL NOT WORK WITH...

Page 3: ...e who may not be awakened by the alarm sound or to those who may be incapable of safely evacuating the area unassisted ALARMS ARE NOT FOOLPROOF Test alarms weekly to ensure continued protection ALARMS...

Page 4: ...ide wall with the top edge of the smoke alarm a maximum of 6 15 2cm below the ceiling wall intersections See Diagram A Existing Homes The NFPA requires smoke alarms or combination alarms on every leve...

Page 5: ...allation in hazardous locations as defined in the National Elec trical Code To avoid causing damage to this alarm to provide maximum protection and to prevent unnecessary alarms DO NOT LOCATE THIS ALA...

Page 6: ...tions in or unconventional vent pipe designs which can amplify the above situations These placement recommendations are intended to keep alarms at a reasonable distance from a fuel burning source and...

Page 7: ...will damage the alarm Installation of this alarm must conform to the electrical codes in your area Article 760 of the National Electrical Code NFPA 72 101 SBC SBCCI UBC ICBO NBC BOCA OTFDC CABO and an...

Page 8: ...multiple alarms INTERCONNECTED ALARMS INSTALLATION The wiring to be used shall be in accordance with the provisions of Articles 210 and 300 3 B of the National Electrical Code ANSI NFPA 70 NFPA 72 and...

Page 9: ...f the dwelling When alarms are interconnected all alarms will sound when one alarm first sounds To prevent damage do not connect this alarm to any other type of alarm or auxiliary device Connecting in...

Page 10: ...tectors Model 501 A or 501 A Bat Aerosol Generator Manufactured by Gemini Scientific Corp 1122 B Aster Ave Sunnyvale CA 94086 The Equivalent UL 268 Light obscuration ft as measured by this instrument...

Page 11: ...system after all the alarms have stopped sounding 1 Press and release the test silence button on any interconnected alarm After releasing the button the test sequence will sound on all the interconnec...

Page 12: ...alarm You might accidentally damage or set fire to the alarm or to your home CAUTION Continuous exposure to the high sound level of this alarm over an extended period of time may cause hearing loss Du...

Page 13: ...D 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...

Page 14: ...ur ers instructions or contact the manufacturer s directly for more information about CO safety and this equipment Make sure that motor vehicles are not and have not been operating in an attached gara...

Page 15: ...Check the color of the flame on the burner and pilot lights to ensure they are burning properly They should be blue If the flame is orange or yellow it is a sign the fuel is not burning completely and...

Page 16: ...ian for assistance Test the alarm following installation and weekly thereafter The built in test switch accurately tests the alarm operation as required byANSI UL217 and UL2034 Standards for Safety If...

Page 17: ...utton for 10 15 seconds and then release This will clear the alarm origination and latching LED Be sure to RESET alarms after every alarm event QUICK FIND Alarm Origination Location Feature The QUICK...

Page 18: ...warranty on this product created by state law shall extend beyond the term of this warranty unless such law otherwise provides USI specifically disclaims any liability and shall not be liable for any...

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