First Alert N8891-1 manual Maintaining your system, Low Battery Conditions in Wireless Sensors

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6<67(0￿)81&7,216

Maintaining your system

The components of your security system are designed to be as maintenance-free as possible. To make sure that your system is in working condition, do the following:

1.Test your system weekly.

2.Test your system after any alarm occurs (see the TESTING THE SYSTEM section).

Low Battery Conditions in Wireless Sensors

Each wireless sensor in your system has a 9-volt or 3-volt battery. The system detects low battery conditions in wireless sensors, including smoke detectors, personal emergency transmitter, and the portable wireless keypad, and displays a “LOW BAT” message on the master keypad, which also beeps. (A low battery in a wireless keypad is detected as soon as one of its keys is pressed, and the master keypad will display “00.”). In addition, a wireless smoke detector with a low battery also emits a "chirp" sound approximately once every 20–30 seconds, identifying itself as the smoke detector with the weak battery. NOTE: A low battery message means that battery replacement in the indicated sensor(s) is due within 30 days. In the meantime, a sensor with a low battery is still operational. Silencing Low Battery Warning Tones at the Keypad: Press the OFF key.

The low battery message display will remain on as a reminder. When you replace the weak battery with a fresh one, the sensor will send a "good battery" signal to the control when the sensor is activated (opening/closing of door, window, etc.). To clear the “LOW BAT” display, enter your code + OFF.

When replacing batteries, use only those recommended by your installer.

Alkaline batteries provide a minimum of 1 year of operation, and in most units and applications, provide 2–4 years of service. 3-volt lithium batteries may provide from 4-7 years of operation. Actual battery life will depend on the environment in which the sensor is used, the number of signals that the transmitter in the sensor has had to send, and the specific type of sensor. Factors such as humidity, high or low temperatures, and large swings in temperature may all lead to the reduction of actual battery life in an installation.

Changing the System Battery

 

In the event of an AC power loss, the system is

NOTE:

powered by a non-rechargeable, alkaline battery,

Battery

located in the battery drawer in the back of the

should be

master keypad. The battery should be replaced

changed at

when a “LOW BAT” message with no zone

least once

number is displayed.

per year.

Slide out the battery drawer. Remove the old

 

 

battery and replace with a fresh battery. Carefully

 

slide the drawer back into the master keypad.

 

The “LOW BAT” display should clear

 

automatically within 4 hours.

TYPICAL 9-VOLT

ALKALINE BATTERY

(1)

TYPICAL 1.5V

ALKALINE "AA" BATTERY (6)

USE ALKALINE

BATTERIES ONLY

ONE 9-VOLT

OR

SIX 1.5V "AA"

OBSERVE POLARITY!

Use either a single 9-volt alkaline battery (e.g., Duracell PC1604 Procell) or six 1.5V “AA” alkaline batteries (e.g., Duracell MN1500).

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Contents 5HDG\*XDUG $%/2&217176 Features General InformationGeneral Operation 48,&.9,2667081&7,216 About the Master Keypad GeneralAbout the Display and Indicators LED MeaningsMaster Keypad Definitions 66702959 Press the Status Key Checking System StatusSystem Can Be Armed Arming In Away Mode Arming in Stay ModeArming the System Arming the System With No Delay To arm with no DelayTo arm with no Delay if Quick Arm is active Quick ArmingEntry/Exit Delays Exit DelayEntry Delay Exit Alarms Exit Alarm ActiveTo disarm the system and silence burglary alarms * * * * + Memory of AlarmDisarming the System Bypassing Protection Zones Bypassing Individual ZonesQuick Bypass Displaying Bypassed ZonesChime Mode Panic Keys / Chime ModePanic Keys Paging Feature Automatic PagingCode Format Manual PagingUsing Device Commands Lights On/Lights Off Keys Device DescriptionsMessage Recording/Playback/Volume Control Adjusting the VolumeRecording a Message Message PlaybackDefining the AUX Function Performing the AUX functionSetting the Time and Date Clock/CalendarSilencing a Fire Alarm If InstalledCase of Fire National Fire Protection Assn./Smoke Detectors Living Room BedroomEmergency Evacuation To Add/Delete a User or Change a Users Code Security CodesAdd a user code Delete a user code Testing the System to be conducted weekly Entering Test ModeExit Test Mode Enter the security code then press TestTypical Trouble Condition Displays Trouble MessagesRoutine Care Changing the System Battery Low Battery Conditions in Wireless SensorsMaintaining your system 6XPPDU\2I$XGLEOH1RWLILFDWLRQ UL Notice This is a Grade a residential system Federal Communications Commission FCC Part 68 Notice Canadian Department of Communications DOC Statement Owners Insurance Premium Credit Request Owners Insurance Premium Credit Request Servicing Information 6, 7 10, 14 ²1276² Limitations of this Alarm System ¬1%l

N8891-1 specifications

The First Alert N8891-1 is a technologically advanced smoke and carbon monoxide (CO) alarm that exemplifies safety and efficiency for modern homes. Designed to provide comprehensive protection against two of the most hazardous threats in residential environments, this device is engineered with an array of features that enhance its functionality and user-friendliness.

One of the standout features of the N8891-1 is its dual-sensor technology. This method combines both photoelectric and ionization sensing capabilities, allowing the alarm to effectively detect a wide range of fire types. Photoelectric sensors are particularly effective for smoldering fires, which may produce more smoke and take longer to ignite, while ionization sensors quickly respond to flaming fires. This combination ensures that users receive timely warnings, enhancing safety and increasing the chances of escape.

The First Alert N8891-1 is also equipped with a unique, easy-to-read digital display that provides real-time data about CO levels in the home. This feature is crucial, as carbon monoxide is an odorless and colorless gas that can be extremely harmful, if not fatal. The display not only indicates the current CO level but also provides users with alerts in case of an emergency or when the battery is low.

In addition to its advanced sensing capabilities, the N8891-1 includes a 10-year sealed battery, eliminating the need for frequent battery replacements and ensuring long-lasting performance. This feature provides peace of mind, knowing that the device will remain operational without the hassle of upkeep.

Another important characteristic is the alarm’s ability to interlink with other compatible smoke alarms in the household. When one alarm detects smoke or CO, all linked units will sound off, creating a synchronized response that further enhances safety throughout the home.

Furthermore, the First Alert N8891-1 is designed with user convenience in mind, featuring a single button for both testing the alarm and silencing false alarms, which can often occur when cooking or from other non-threatening sources.

Overall, the First Alert N8891-1 stands out as a reliable and sophisticated choice for those seeking to enhance their home’s safety features with a dual-function smoke and carbon monoxide detector that seamlessly combines advanced technology, ease of use, and sustainability.
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