usi MP116S Instructions Manual Download Page 8

If you choose to use an aerosol smoke product to test the smoke alarm, be certain to use 

one that has been Listed to Underwriters Laboratories, Inc. Safety Standards and use it 

only as directed. Use of non-UL Listed products or improper use of UL Listed products may 

affect the smoke alarm's sensitivity.
NUISANCE ALARM SILENCE FEATURE: 

This feature is to be used only when a known alarm 

condition, such as smoke from cooking, activates the smoke alarm. The smoke alarm Silence 

Feature is activated by pushing and releasing the Silence button on the smoke alarm cover while 

in alarm condition. The smoke alarm will automatically reduce sensitivity and the red LED will blink 

on approx. every 10 seconds to indicate the alarm is in the Silence mode. The smoke alarm will 

gradually regain normal sensitivity and sound the alarm if particles of combustion are still present. 

The approx. 8-12 minute Silence feature may be used repeatedly until the air has cleared, by 

pushing and releasing the Silence button again. Resetting the smoke alarm after a nuisance alarm 

is recommended.
NOTE:  If the Test button is pressed and held during the Silence mode, the smoke alarm will be 

tested normally. Upon the release of the Test button, the Silence mode will be restarted.

REGULAR MAINTENANCE: 

Test the alarm at least once per week to verify it is operating properly.  

Clean this alarm at least once a month to remove dust, dirt, insects and debris. Using a soft brush 

or wand attachment to a vacuum cleaner, vacuum all sides and cover of smoke alarm. Be sure all 

the vents are free of debris.

DO NOT use spray cleaning chemicals or insect sprays directly on or near the alarm. DO NOT paint  

the alarm. Doing so may permanently damage the alarm and interfere with alarm’s ability to sense 

smoke. The outside can be wiped with a damp cloth. DO NOT use any household cleaning agents, 

solvents or sprays including compressed gas dusters or any other chemical on or near your alarm. 

DO NOT disassemble or attempt to clean inside the alarm. This alarm contains no serviceable parts.

If the alarm becomes contaminated by excessive dirt or grease, and cannot be cleaned, it should 

be replaced immediately. Alarms have a limited life and should always be replaced 10 years from 

the date of purchase.

AFTER CLEANING, REINSTALL YOUR ALARM AND 

TEST YOUR ALARM BY USING THE TEST BUTTON

Page 8

BATTERY AND ALARM DEACTIVATION

This alarm uses a sealed battery. The battery should last for approximately 10 years under normal 

operating conditions. The smoke alarm has a low battery indicator which is 2 chirps approx. every 

60 seconds. The red LED blinks on once approx. every 2 minutes.
Due to the loud 85 decibel alarm, stand at arm's length away from the alarm or use ear protection 

when testing. Weekly testing is required to ensure proper operation. Irregular or low volume sound 

may indicate a defective alarm and it should be returned for service. Follow instructions   to prepare 

alarm for shipment or disposal.

Deactivation of the alarm is permanent.
Do not attempt to open the alarm for any reason.

Place this alarm into shut-down mode at the end of its useful service life. Once the smoke alarm 

has entered end-of-service-life mode, it is necessary to deactivate the alarm operation. This will 

stop the product end-of-service-life warning signal and also discharge the remaining capacity of 

the battery to render it safe for disposal.

1.  Remove the alarm from the mounting bracket by rotating it in the direction shown by the arrows 

on the rim of the base.

2.  The alarm deactivation key is located in the mounting bracket of the alarm.

3.  Use a small flat blade tool to remove the deactivation key (breakaway) from the mounting 

bracket.

4.  Push tip of key into the deactivation slot (keyhole) outline on label and insert fully.

5.  Turn key clockwise to the “off” position slowly 3/4 turn.

6.  This will discharge the alarm battery and stop the alarm chirping after approximately one 

minute.  The alarm is now safe for disposal.

7.  The deactivation key cannot be removed and the alarm cannot be attached to the bracket.  

8.  Be sure to install a new alarm.

Summary of Contents for MP116S

Page 1: ...operate maintenance testing and product features It also includes tips and information which could help protect you and your family Table of Contents Page Smoke Alarm Limitations and Functions 2 Reco...

Page 2: ...nd properties SMOKE ALARMS CANNOT DETECT FIRES IF THE SMOKE DOES NOT REACH THEM Smoke from fires may not reach the sensing chamber and set off the alarm One alarm should be installed inside each bedro...

Page 3: ...Title 24 CFR Section 3280 208 and Section 3282 For additional protection see Single Story Residence smoke alarm requirements recommendations for Existing Homes and New Construction Homes Note For mob...

Page 4: ...et Page 4 Early warning fire detection is best achieved by the installation of fire detection equipment in all rooms and areas of the household as follows A smoke alarm installed in each separate slee...

Page 5: ...terconnected system USI 7795 The following alarms can trigger Quick Find Alarm Origination but will not indicate Alarm Origination on an interconnected system USI 1103 USI 1203 USI 1204 USI 1208 Part...

Page 6: ...reen LED should be on to indicate AC power The red LED blinks on once approx every 2 minutes to indicate proper operation 120 VAC 60Hz 100mA Max OPERATION TESTING MAINTENANCE NORMAL OPERATION The alar...

Page 7: ...arm origination and to return your system to normal operation Refer to the wiring instructions model interconnect compatibility section of this manual Page 5 for additional information In a non interc...

Page 8: ...alarm DO NOT disassemble or attempt to clean inside the alarm This alarm contains no serviceable parts If the alarm becomes contaminated by excessive dirt or grease and cannot be cleaned it should be...

Page 9: ...and at least two escape routes from each room Second story windows may need a rope or chain ladder o Have a family meeting and discuss your escape plan showing everyone what to do in case of fire o D...

Page 10: ...On If alarm sounds and hazard is identified please take all precautions by getting out of the home immediately and then calling an Emergency Service Nuisance Alarm 3 Beeps 2 second pause Repeat Blinks...

Page 11: ...consequential or incidental loss or damage including but not limited to damages to any equipment with which this product is used Some states do not allow the exclusion or limitation of incidental or...

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