BRK electronic 4000LB User Manual

Cat. No.

4000LB

Long-Life Lithium Power

WITH 10-YEAR

LIMITED WARRANTY

SMOKE
ALARM

IONIZATION

Features

Long-Life Lithium Powercells reduce frequency of battery replacement
Alarm Silencer , quiets detector during unwanted alarms
Test Button checks all functions by electronically simulating smoke conditions, causing unit to alarm
85dB Horn provides loud, audible warning
Unit resists closing unless battery is inside
Low-battery warning
10 Year Limited Warranty
Long-Life Lithium Battery included

•Long-Life Lithium Powercell reduces
maintenance costs associated with
battery replacement

•Alarm Silencer reduces call backs
resulting from unwanted nuisance
alarms

•Excellent choice for existing multi-unit
dwellings, school dormitories and
public housing units

Cat. No.

4000LB

4. The smoke alarm shall be powered by a long-life lithium power cell.

5. A visual LED (green) power-on indicator flashes about once/minute to
confirm the unit is receiving DC power.

6. A manual test button to check all detector functions by stimulating
the chamber to simulate a 1.20%/ft. smoke condition, causing the
unit to alarm.

7. A silence button to manually reset and quiet the unit during an
unwanted alarm.

8. A solid state piezo alarm horn rated at 85dB at 10ft.

9. The unit shall be capable of operating between 40°F and 100°F
(4°-38°C) and relative humidity of 10% and 90%.

10. The unit shall surface mount to any wall or ceiling.

11. The unit shall at a minimum meet the requirements of Underwriters
Laboratories, Inc. Single and Multiple Station Smoke Alarms UL217,
CSFM, NFPA 72, and NFPA 101 and with model building codes
published by ICBO, SBCCI, BOCA, and CABO.

TECHNICAL SPECIFICATIONS

Operating Voltage 9V DC
Operating Ambient T emp. Range 40°F(4°C) to 100°F(38°C)
Operating Humidity Range 10% to 90% RH
Nominal Sensitivity 1.20%/Ft.
Alarm Horn Rating 85dB at 10Ft.–Temporal horn (NFPA 72)
Alarm Reset Automatic when smoke clears
T est Button Stimulates the chamber to simulate smoke

condition, causing the unit to alarm

Silence Button Manually resets the alarm

while occupants respond

LED Indicators:

Power Flashes once per minute

Alarm Flashes continuously
Dimensions 1.6” H x 5.6” D
W eight 6.4 oz.
NAED # 50600
Master Pack 12 units

MANUFACTURED BY: DISTRIBUTED BY :

FOR TECHNICAL HELP OR REPRESENTATIVE NEAREST YOU
PHONE [phone]

CM2039

BRK®Electronics
3901 Liberty Street Road
Aurora, IL 60504-8122

©1998 BRK Brands, Inc.

Printed in USA

Research available through the National Fire Protection
Association (NFP A) indicates that as many as one-third of all
residential smoke alarms do not work. The primary cause is
due to DEAD or MISSING batteries. This Long-Life Lithium
Powered Smoke Alarm reduces the chance of an inoperable
smoke alarm.

APPLICATION:

BRK Electronics Model 4000LB is a single station smoke alarm specifically
designed for existing residential and institutional applications including
sleeping rooms of hospitals, hotels, motels, dormitories, and other
multifamily dwellings as defined in standard NFPA 101. Model 4000LB
has been fully tested and complies with Underwriters Laboratories Inc.
Single and Multiple Station Smoke Alarms UL217, CSFM, NFPA 72, NFPA
101 and with model building codes published by ICBO, SBCCI, BOCA,
and CABO.

Model 4000LB is designed to give reliable early warning of fire by
providing an 85dB alarm when the unit senses smoke from fire. 4000LB is
powered by a replaceable long-life lithium power cell which carries a 10
year limited warranty. The unit features an ionization sensing chamber
which operates on the ionization principle, a generally more effective
method of detecting smoke from fast flaming fires. The sensing chamber
consists of two electrically charged plates and a source of Americium 241
to ionize the air molecules in the space between the plates. As particles of
combustion enter the ionization chamber, they collide and combine with
ionized air molecules reducing the number of ionized air particles,
resulting in a decrease in current between the two plates. Electronic
circuitry monitors the change in current. When smoke inside the chamber
reaches a level of 1.20%/ft, the unit triggers an audible alarm. A manual
test feature checks all detector functions by stimulating the chamber to
simulate a 1.20%/ft smoke condition, causing the unit to alarm. In case of
an unwanted alarm, 4000LB features a silencer button that resets and
quiets the unit while the occupants respond.

Model 4000LB was designed with quick and easy installation in mind.
The unit surface mounts to ceilings and walls with hardware included.

ARCHITECTURAL AND ENGINEERING SPECIFICATIONS:

The smoke alarm shall be BRK Electronics Model 4000LB or approved
equal and shall provide, at a minimum, the following features and
functions.

1. An ionization sensing chamber with nominal sensitivity of 1.20%/Ft.

2. The unit shall be capable of self-restoring.

3. A fully screened sensing chamber to prevent entrance of small insects
thereby reducing probability of unwanted alarms.

Long-Life Lithium Power

WITH 10-YEAR LIMITED WARRANTY

Ionization