Quell Q4000DCS-WCB User manual

INTELLIGENT WIRELESS
Smoke Alarm User Guide
Photoelectric Smoke Alarm with Voice
and Wireless Interconnect – Battery Operated
Model Q4000DCS-WCB
Model Q4000DCS-WCL
Model Q4000DCS-WBB
Model Q4000DCS-WBL
Model Q4000LDCS-WCH (Safety Light)
Model Q4000LDCS-WBH (Safety Light)
WIRELESS INTERCONNECT:
You do NOT need a home wi-fi system to use
these units. Multiple wireless units create their
own independent wireless alarm network.
Quell alarms connect to each other wirelessly
via communication on the 915-928 MHz band.
10YEAR SEALED
LITHIUM BATTERY
WIRELESS INTERCONNECT
VOICE ALARM
PHOTOELECTRIC SMOKE ALARM
P/N: 137071, 137073, 137077,
137072, 137074, 137078
P/N:0316-7201-02

Thank You for Purchasing this Quell®Smoke Alarm
These models are powered by a non-replaceable, long life sealed lithium battery system, and include SMART HUSH
Control to temporarily silence nuisance alarms. They are capable of interconnecting wirelessly via RF signals.
READ SECTION 7: Activation and Wireless Alarm Network, before powering the units. You do NOT need a
home wi-fi system to use these units. Quell®alarms connect to each other wirelessly via communication on
the 915-928 MHz band.
Teach children how to respond to the alarm and that they should never play with the unit.
Your Quell®Smoke Alarm was designed for use in a residential environment.
NOTE: Please thoroughly read this user guide and save the document for future reference and to pass on to any
subsequent owner.
Quell® is a registered trademark of Kidde Australia Pty Ltd.
Copyright © 2022 Kidde Australia Pty Ltd. All rights reserved.

Contents
1. Product features . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2. Product Specifications . . . . . . . . . . . . . . . . . . . . . . . 4
3. Recommended Locations for Smoke Alarms . . . . . . . . . . . . . . . 5
4. Locations To Avoid . . . . . . . . . . . . . . . . . . . . . . . . . 8
5. Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6. Installation / Mounting Instructions . . . . . . . . . . . . . . . . . . 10
7. Activation and Wireless alarm network . . . . . . . . . . . . . . . . . 11
7.1 Setting up a wireless alarm network . . . . . . . . . . . . . . . . . 11
7.2 Adding another device to an existing wireless alarm network . . . . . . . 12
7.3 Resetting a Device’s Wireless Settings . . . . . . . . . . . . . . . . 13
8. Operation and Testing . . . . . . . . . . . . . . . . . . . . . . . 14
9. Troubleshooting Guide . . . . . . . . . . . . . . . . . . . . . . . 15
10. Other Alarm Visual and Audible Indicators. . . . . . . . . . . . . . . . 18
11. Recognizing Nuisance Alarms . . . . . . . . . . . . . . . . . . . . 19
12. Bat tery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
13. Permanently Disable Alarm / Discharge Battery. . . . . . . . . . . . . . 20
14. Cleaning Your Alarm . . . . . . . . . . . . . . . . . . . . . . . . 21
15. Good Safety Habits . . . . . . . . . . . . . . . . . . . . . . . . 21
16. What To Do When The Alarm Sounds . . . . . . . . . . . . . . . . . 22
17. Warranty & Contact Details . . . . . . . . . . . . . . . . . . . . . 23
18. Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4
1. Product features
The Q4000 series is powered from a non-replaceable battery. The smoke alarm ensures protection in the event of a
power failure.
•Smoke Alarm SMART HUSH Control
•Voice message system
•Powered by 3V DC non-replaceable sealed lithium battery.
•Wireless interconnectable to QUELL compatible alarms.
•One large, user- friendly button.
•LED safety light on model Q4000LDCS-WCH and Q4000LDCS-WBH to help illuminate escape pathways
2. Product Specifications
Models
Q4000DCS-WCB with voice
Q4000DCS-WBB with voice
Q4000DCS-WCL with voice
Q4000DCS-WBL with voice
Q4000LDCS-WCH with Light
Q4000LDCS-WBH with Light
Electrical Rating
3V sealed lithium battery
Radio Frequency
925MHz
Sensor
Photoelectric
Wireless Interconnecting
Smoke Alarms
up to any combination of 23 QUELL wireless smoke alarms models. Compatible
models are Q2300W and Q4000 Series
Wireless Range At least 100m line of sight. Distance vary depending on obstructions.
Operating Temperature 0 °C to 40°C
Operating Humidity Up to 93% Humidity (Non-Condensing)
Storage and Transport Conditions - 20° C to +60° C, 5-95%RH (non-condensing)
Audiable Alarm 85 decibels at 3 metres with voice message “Fire!”

5
3. Recommended Locations for Smoke Alarms
Refer to your local state and federal laws or contact your local fire brigade to determine the minimum
installation requirements (Figure 3.1 A and Figure 3.1 B ).
Recommended Locations
•In every room where someone sleeps with the door closed. The closed door may prevent an alarm located outside
from waking the sleeper.
•In the immediate area of bedrooms and the exit path from all sleeping areas (Figure 3.1 A).
•In stairways, as stairways act like chimneys for smoke and heat.
•In any room where large electrical appliances are operated (e.g., portable heaters or humidifiers).
•If a hallway or room is more than 9.1m long put alarms at both ends.
•For maximum household protection see Figure 3.1 C. Ordinary residential construction.
Things to Consider:
•Smoke from a fire will rise to the ceiling and spread horizontally.
•Mounting the smoke alarm in the centre of the ceiling places it closest to all points in the room.
•When mounting an alarm on the ceiling, locate it at a minimum of 30cm from the side wall (Figure 3. 2A).
•For sloped, peaked or cathedral ceilings the alarm should be placed between 500mm and 1500mm from the highest
point of the ceiling (Figure 3.2A and 3.2B).
•Smoke alarms in rooms with ceiling slopes greater than 1m in 8m horizontally, should be located on the high side of
the room (Figure 3. 2 A ).
For Wall Mounting:
When mounting the alarm on the wall, use an interior wall with the top edge of the alarm at a minimum of 10cm and a
maximum of 30cm below the ceiling (Figure 3.2 A).

6
DINING
ROOM
LIVING
ROOM
Smoke Alarms for Minimum Protection
Not within 3m of cooking appliances
Smoke Alarms for Additional Protection
KITCHEN
BEDROOM
BEDROOM BEDROOM
LIVING
ROOM KITCHEN
BEDROOMBEDROOM HALL
BASEMENT
FIGURE 3.1 A FIGURE 3.1 B
FIGURE 3.1 C
SINGLE FLOOR PLAN MULTIPLE FLOOR PLAN
BEDROOM
FAMILY ROOM
WORKSHOPBASEMENT
KITCHEN
HALL
GARAGE
MASTER
BEDROOM
FIRE
EXTINGUISHERS
SMOKE
ALARMS
FIRE BLANKET
TOTAL HOME PROTECTION

7
CEILING
300 mm
MINIMUM
100 mm
MINIMUM
300 mm
MAXIMUM
SIDE WALL
BEST
PLACEMENT
ACCEPTABLE
PLACEMENT
DO NOT INSTALL
DEAD AIR
NOT IN
THIS AREA
ANYWHERE IN THIS
AREA
NOT IN
THIS AREA
ANYWHERE IN THIS
AREA
SLOPED CEILING
500mm
1000mm
1000mm
500mm
Smoke alarm should
be located between
500mm and 1500mm
of the highest point.
DEAD AIR
DEAD AIR
DO NOT INSTALL
DO NOT INSTALL
FIGURE 3.2 A
FIGURE 3.2 B
CEILING APEX

8
4. Locations To Avoid
•Smoke alarms should not be installed within 0.9m(3 ft)
•of the door to a bathroom containing a tub or shower
•forced air supply ducts used for heating or cooling
•ceiling or whole house ventilating fans
•other high air flow areas
•Areas where curtains or other objects will block the sensor. Smoke must be able to reach the sensor to accurately
detect conditions.
•Install at least 300mm away from a light fitting.
•No closer than 400 mm outside the circumference of a ceiling fan.
•Keep out of insect infested areas.
•Avoid excessively dusty, dirty or greasy areas.
•Do not install in areas where the temperature is colder than 0°C or hotter than 40°C.
•Do not install in areas where the relative humidity (RH) is greater than 93%.
•Normal cooking may cause nuisance alarms. If a kitchen alarm is desired, it should have an alarm silence feature and
should not be installed within 3m of cooking appliances.
•Avoid dead air spaces such as the peak of an “A” frame ceiling. “Dead Air” at the top may prevent smoke from reaching
the alarm in time to provide early warning. Refer to Figure 3.2A and 3.2B
NOTE: Smoke alarms are not to be used with detector guards unless the combination (alarm and guard) has been
evaluated and found suitable for that purpose.

9
5. Installation
Upon initial power being applied (from rotating onto mounting plate or moving the red activation wheel to the
“ON” position - see Figure 7.1-B) these units are ready to connect to a network.
NOTE: At any time during wireless alarm setup, if you have a problem, you can push and hold the Test/Hush
button on any problem unit until you hear three (3) beeps (approx 8 sec), and then release the button. The unit
will reset the unit’s wireless settings (described in Section 7.3). Once wireless settings are reset, the unit will
prompt the user to follow Quickstart instructions.
NOTE: Wireless units will emit a series of LED flashes, tones, and voices as the unit(s) search for a wireless alarm
setup. If you are intending to use wireless units without the wireless function, ignore these notifications, and
the wireless function will eventually turn off. You can turn the wireless function on again at a later date if desired.
See Section 7.2.
NOTE: After activation, the battery can be turned off by turning the switch anti-clockwise. If the alarm is
removed from the mounting plate, the battery will remain active.
Wireless
These models have wireless alarm interconnect capability. When one interconnected unit sounds an alarm, all other
compatible wireless units in the wireless alarm network will alarm. These alarms connect to each other wirelessly
via communication on the 915-928 MHz band.
•A maximum of 24 Quell Safety devices may be interconnected. The interconnect system should not exceed
the following individual limits: 12 smoke alarms and/or 18 alarms total (smoke, CO, Smoke/ CO Combination,
heat, etc.) and/or 6 remote signaling devices and / or relay modules.
•Maximum distance between wireless interconnect models is greater than 100 meters in open air.
COMPATIBLE WIRELESS INTERCONNECT UNITS
DC Models: Q4000DCS-WCB, Q4000DCS-WCL,
Q4000DCS-WBB, Q4000DCS-WBL,
Q4000LDCS-WCH (Safety Light),
Q4000LDCS-WBH (Safety Light)

10
6. Installation / Mounting Instructions
CAUTION: THIS UNIT IS SEALED INCLUDING THE BATTERY. THE COVER IS NOT REMOVABLE!
Once the steps to setup the wireless alarm network have been completed(See section 7), please proceed to the
following installation steps.
1. To obtain aesthetic alignment of the alarm with the hallway or wall, the “A” line on the mounting bracket should be
parallel with the hallway when ceiling mounting or horizontal when wall mounting.
2. After selecting the proper smoke alarm location as described in Section 6, attach the mounting bracket to the
ceiling as shown in Figure 6-A. For wall mounting see Figure 6-B. Place the mounting plate on the wall; be sure the
“A” line is horizontal (parallel to the floor). Use the screws and anchors provided to secure the mounting bracket (use
3/16” drill bit for anchors).
3. This alarm has a battery permanently sealed inside; No battery installation is necessary.
Align the alarm with the mounting plate and rotate clockwise (right) until the unit stops and clicks into place.
• Install the alarm fully on the mounting bracket by rotating the alarm in a clockwise direction.
NOTE: The alarm will mount to the plate in four (4) positions (every 90 degrees).
The alarm is now activated! After installation/activation, test your alarm as described in Operation and Testing section.
WARNING : FAILURE TO PROPERLY INSTALL AND ACTIVATE THIS ALARM WILL PREVENT PROPER
OPERATION OF THIS ALARM AND WILL PREVENT ITS RESPONSE TO FIRE HAZARDS.
Figures 6-C
Figures 6-B
When mounting
in a hallway, the
“A” line should
be parallel with
the hallway.
Alignment Marks
(”A” Line) on
Mounting
Bracket
When wall
mounting, the
“A” line should
be horizontal.
Remove
Install
A
Figures 6-A

11
7. Activation and Wireless alarm network
7.1 Setting Up a Wireless Alarm Network
Creating an interconnected wireless alarm network is a simple process, with
intelligent “self-enrollment” features, and user-friendly voice prompts.
A. REMOVE ALL DEVICES FROM THEIR PACKAGING
B. POWER UP ALL DEVICES
•Locate the red wheel on the back of the device. Turn the red wheel to
the “ON” position on ALL devices using the white tool included with the
Quick Start Guide.
•Once powered, the light rings will glow red and voice message will announce, “Ready to connect. Follow Quick
Start instructions.”
NOTE: If no further steps are taken within 15 minutes of initial power up, a voice prompt, “No devices found, not
connected” will be heard once, and the wireless function will turn off. The
unit will then perform as a standard stand alone alarm. See Section 7.3 for
re-activating wireless.
C. PICK ONE DEVICE
NOTE: This chosen device will be the “host” of the wireless alarm
network. Keep this unit separated from the others. For best results, after
wireless setup is complete, install the host in a central location.
Press and hold the button on only ONE device until you hear two beeps.
Release button. You will hear “Searching for other devices”.
•The light will pulse and device will sound a continuous “Sonar” ping
until step E is complete.
D. RELAX AND WAIT
NOTE: For reference, these non-host units are called “Peers”.
Wait until all other devices (Peers) have connected to network. Once
connected, each device will speak, “Success now connected!”
•Once connected, the lights will glow green.
E. PICK ONE DEVI CE
Press and hold the button on only ONE device until you hear 2 beeps.
Release button. “Sonar” ping will stop.
•Device will announce that setup is complete and the number of connected devices.
Figure 7.1-B
ON
OFF
ACTIVATION
TOOL
Figure 7.1-C
DON'T press buttons
on other devices
“Searching for
other devices.”
Hold for
5 seconds
Figure 7.1-D
“Success, now
connected!”
Figure 7.1-E
Hold for
5 seconds

12
F. WIRELESS SETUP COMPLETE!
If all devices flash green and “Sonar” ping has stopped, the devices are now connected. Congratulations!
IMPORTANT: If for some reason, you forget which unit is the host, follow these simple steps to re-confirm the host
and the Peer units.
1. Press and hold the button on any unit for 4-5 seconds until 2 beeps are heard. Release button.
2. Observe the LED ring on each unit. The host will be fading green on/off every 2 seconds. The Peers will be fading
green on/off every 4 seconds.
3. After confirming the host, press and hold the button on any unit for 4-5 seconds until 2 beeps are heard.
G. PLEASE SELECT LOCATION AND INSTALL ALARM
Please see section 6 “Installation / Mounting Instructions”
7.2 Adding Another Wireless Device to an Existing
Wireless Alarm Network
For various reasons, you might want to add additional units to your existing wireless alarm network. Modifying your
existing wireless alarm network is easy and user-friendly.
A. REMOVE THE NEW DEVICE FROM ITS PACKAGING.
B. POWER UP NEW DEVICE
Locate the red wheel on the back of the device being added. Turn the red
wheel to the “ON” position using the white activation tool included in the
Quick Start Guide or a standard screwdriver.
•Once powered, the light ring will glow red.
C. PICK ONE INSTALLED DEVICE
Press and hold the button on ONE INSTALLED device on your network until
you hear two beeps. Release button. You will hear “Searching for other
devices.”
•Light will pulse green and device will sound a continuous “Sonar” ping
until step E is completed.
Figure 7.2-B
ON
OFF
PERMANENTLY
DISABLE and
DISCHARGE
alarm
Break
tab
SMOKE ALARM: 3 long beeps, repeating
CO ALARM: 4 quick beeps, repeating
STANDBY: Green LED blink every 60s
FAULT: Amber LED blink with chirp every 30s
LOW BATTERY: Amber LED blink every 5s, chirp every 60s
END OF UNIT LIFE: Amber LED blink every 5s, chirp twice every 30s
Push button to test weekly.
See user guide for more information
USE ACTIVATION
TOOL OR SCREWDRIVER
Figure 7.2-C
Device Being Added
“Searching for
other devices.”
Installed Device

13
D. RELAX AND WAIT
Wait until the new device has connected to the network. Once connected,
the new device will speak, “Success now connected!”
•Once connected, the light ring will glow green.
E. FINISH ADDING NEW DEVICE  COMPLETE WIRELESS
NETWORK SETUP
Press and hold the button on the INSTALLED device for 5 SECONDS until you
hear two beeps. Release button. ”Sonar” ping will stop.
•Device will announce that setup is complete and the number of
connected devices.
7.3 Resetting a Device’s Wireless Settings
If you encounter an issue at any point during the wireless network setup
process, you may reset the device by following the directions below.
A. BEGIN RESET
Press and hold the button on the device for 8-9 seconds until you hear
3 beeps. Release button. You will hear the words “Resetting wireless settings.”
B. CONCLUDE RESET
Light ring will flash green once and then it will pulse red. You will hear the
words, “Ready to connect, follow quick start instructions.”
•Device has been reset.
•See Section 7.1 to begin set-up of a new wireless alarm network,
or Section 7.2 for adding this device to an existing alarm network.
NOTE: If no further steps are taken within 15 minutes of
resetting the unit’s wireless settings, a voice prompt “No devices found, not
connected” will be heard once, and the wireless function will turn off.
The unit will then perform as a stand alone alarm. See Section 7.2 for adding
this device to an existing alarm network.
Figure 7.3-B
“Ready to
connect, follow
Quick Start
instructions.”
Figure 7.3-A
Hold for
8-9 seconds
“Resetting
wireless
settings.”
Figure 7.2-E
Added Device
“Setup
complete!”
Installed Device
Figure 7.2-D
“Success, now
connected!”

14
8. Operation and Testing
Operation
The alarm is operating once it is activated and testing is complete. When products of combustion (smoke) are sensed, the
unit sounds a loud alarm with voice messages. See Sections 9 and 10 for alarm signal descriptions.
Testing
Test your alarm weekly by pressing and releasing the test button quickly. A quick beep will confirm the button has been
pushed followed by voice prompts that will inform you of the upcoming test sequence. See Section 10: Other Alarm
Visual and Audible Indicators table. The alarm and voice (and any interconnected units) will sound if the electronic
circuitry, horn, speaker, and battery are working. If the alarm or voice does not sound, or gives erratic or low volume
sound, the unit must be replaced.
WARNING: DUE TO THE LOUDNESS OF THE ALARM, ALWAYS STAND ABOUT 2.5 FEET AWAY FROM
THE UNIT OR USE EAR PROTECTION WHEN TESTING.
WARNING: DO NOT USE AN OPEN FLAME TO TEST YOUR ALARM, YOU COULD DAMAGE THE
ALARM OR IGNITE COMBUSTIBLE MATERIALS AND START A STRUCTURE FIRE.
Ambient Light Sensing
This unit samples the ambient light conditions of the alarm’s location and, if possible, determines a Night / Day cycle.
A valid Night / Day cycle will delay unit chirps during the night until the next Day cycle begins.
Chirping
When chirping begins during the next Day cycle, you can temporarily silence End of Unit Life or Network Error chirps by
pressing the Test/Hush button. Low Battery chirps cannot be silenced.
If a valid Night / Day cycle has not been established because the unit
is located in either a constantly dark or lighted location, the chirps
mentioned above will not be delayed at night. Moving the unit to a
different location might allow the unit to determine a valid Night /
Day cycle.
WARNING: REPLACE UNIT AS SOON AS POSSIBLE WHEN IN END OF UNIT LIFE OR LOW BATTERY MODE.
POSSIBLE CHIRPING REASONS
End of Unit Life: will be delayed at night
Network Error: will be delayed at night
Low battery: will be delayed at night

15
9. Troubleshooting Guide
Trouble Condition Visual Indications Audible Indications Action:
Low Battery
Amber
LED
ashes
every
5
seconds
Chirp every 60 sec, voice every
30 sec: “Replace alarm.”
Voice stops after 5 mins.
*Remove, discharge, dispose unit, and replace
as soon as possible.
Fault Mode Chirp every 30 sec.
Voice every 30 sec: “Error, see
trouble shooting guide”
After 5 mins: no voice message
*See Cleaning Your Alarm section.
* Push Test/Hush button once to attempt to
reset the unit .
*Red LED will ash out an error code (number
of ashes) when Test/Hush button is push/
released once. Report the number of ashes
to customer service if needed.
End of Unit Life Double chirp every 30 sec.
First 5 mins: Voice every 30 sec:
“Replace alarm, press button to
silence.” Voice stops after 5 mins.
After 7 days: Chirps continue.
Voice every 30 sec for 5 mins:
“Replace alarm.”
* Push/release Test/Hush button to temporarily
silence (see End of Unit Life Hush Mode section
below)
* Remove, discharge, dispose unit, and replace
as soon as possible.
End of Unit Life Hush
Mode (after push/
release Test/Hush
button during End
of Life)
Voice “Temporarily Silenced.”
End of Unit Life chirps silenced
for 24 hrs. (7 days after End of
Unit Life chirps begin, the chirps
cannot be silenced.)
* Remove, discharge, dispose unit, and replace
as soon as possible.
Network Error Chime every 30 secs. Voice
every 30 sec: “Connection Lost.
Press Button to Silence.”
After 5 min: no voice messages
(Note: network must have
3 or more alarms for voice
messages.)
See next page for Network Error
troubleshooting tips.
Network Error Hush
(after button push
during Network Error)
Voice “Temporarily Silenced.”
If you require further information please contact Product Support at 1800 654 435 or write us at: Kidde Australia Pty Ltd, Quell Warranty Returns,
10 Ferntree Palce, Notting Hill, Vic, 3168

16
Network Error Troubleshooting Tips
If you have a unit (or units) in network error and you would like to silence them, you can push and release the Test/Hush
button once on each unit in network error to silence them for 24 hours at a time. NOTE: when you do this, the red LED
will flash out an error code (number of flashes) when the Test/Hush button is push/released once. If the following steps
are unsuccessful, it might be helpful to report the number of flashes to customer service.
Fix 1:
NOTE: If there is only one unit that is giving you trouble, rotating the alarm on the mounting plate may re-orient the
wireless antenna and fix the problem.
1. Press and hold the button on a known working unit (not the unit in network error) for 4-5 seconds until you hear 2 beeps.
2. Go to the room/location of the unit in network error.
3. Rotate the network error unit 90 degrees in either direction on the mounting plate.
4. Press and hold the button on the network error unit for 4-5 seconds until you hear 2 beeps.
5. Within 10 seconds, the network error unit should re-join the wireless network and should show fading green lights,
with a voice “Success, now connected.” If this is the case, press and hold the button on the same unit for 4-5
seconds until 2 beeps are heard.
NOTE: If the unit does not re-join the wireless network, press and hold the button on a known working unit (not the
unit in network error) for 4-5 seconds. Then proceed to “Fix 2.”
Fix 2:
NOTE: In a wireless alarm network, there is a host unit, which controls communication to the other units, which are
called “Peers”. For best wireless range, the host should be located in a central location of the household.
If “Fix 1” does not work or if there are multiple units in network error, the following steps will place the host of the
wireless network at the center of the household.
1. Go to a wireless unit that seems closest to the center of the house.
2. If this unit is not in network error, press and hold the button on that unit for 4-5 seconds until you hear 2 beeps, and a
voice “Searching for other devices,” as well as a sonar ping sound. If it is in network error go to “Fix 3” below.
3. You will now need to locate the host of the system.
a. The host will be fading green on/off every 2 seconds. The Peers of the system will be fading green on/off every
4 seconds.
b. The wireless network will stay open for 15 minutes. If the wireless network closes, press and hold the button on
any known working wireless unit for 4-5 seconds until 2 beeps are heard, followed by voice “Searching for other
devices,” as well as a sonar ping sound, to re-open the wireless network.

17
4. Once you have located the Host of the wireless network, take the host down and swap it with the unit that was deemed to
be in the center of the house (found in steps 1 and 2).
5. Go to each unit that is in network error and press/hold the button on that unit for 4-5 seconds until you hear 2 beeps.
a. The unit should join back to the wireless network,with voice “Success, now connected.” The lights on the unit
should flicker once and then be fading green on/off every 4 seconds. If this is the case, press/hold the button on
any unit to close the wireless network
.
b. If the unit doesn’t join the network, rotate the unit 90 degrees in either direction.
c. If the unit still hasn’t joined the network, press and hold the button on a known working unit for 4-5 seconds to
close the wireless network and then proceed to “Fix 3.”
Fix 3:
If “Fix 2” did not work, use this fix. The following steps will reset the entire wireless alarm network and place the host at the
center of the household.
1. Take all wireless units down from their installed locations and set all units on a table.
2. Reset all the units one by one by pressing and holding the button for 8-9 seconds until you hear 3 beeps and a voice
“Resetting wireless settings.”
NOTE: if resetting the units doesn’t result in the voice message “Ready to connect, follow quick start instructions”, the
unit needs to be replaced with a new one.
3. Create a new wireless alarm network by pressing and holding the button on any unit for 4-5 seconds until you hear 2
beeps, and voice, “Searching for other devices” with a sonar ping. Keep track of this unit, as it will become the host of your
wireless alarm network.
4. Wait for the other units to join the new wireless network. Each unit will announce “Success, now connected.”
5. After each unit has joined, press/hold the button for 4-5 seconds on the host unit.
6. Take the same unit (host) and install it closest to the center of the household.
a. Example 1: For a 2 floor house, install the unit on the main floor near the center of the main floor.
b. Example 2: For a 3 floor house, install the unit on the middle floor near the center of the middle floor.
7. Install the rest of the units around the house (you may place units in any location as instructed by this user guide).
If the network error persists after these attempted fixes, remove the unit, discharge it, and replace it with a new unit as
soon as possible. Contact customer service.

18
10. Other Alarm Visual and Audible Indicators
Operational Mode Visual Indications Audible Indications Action/Note:
Normal (standby) Green LED ashe approx every 60 sec.
Test (button press
when no alarm
condition is present)
•4 patterns of Red/Amber/Green.
•Test: Red LED ashes in time with
alarm pattern. Safety light will briey
illuminate on model Q4000LDCS-
WCH or Q4000LDCS-WBH.
•Green LED fade on/o at test
complete
• Button press sound
•Voice: "Testing, this is very loud. Press
now to cancel test. 5, 4, 3, 2, 1."
•3 long beeps, Voice "Fire!", 3 long
beeps, Voice "Test Complete," Power
on/reset sound.
•Voice "Test Cancelled" if button
pushed before test sequence
begins.
Perform Test/Hush button
press once a week to verify
proper alarm operation
Push/release button before
the countdown ends to
cancel test.
Smoke Alarm
Memory (unit has
experienced a
smoke alarm event
within the last hour)
Red and Amber LED alternate on
1 sec, every 10 sec.
After button push: "Smoke previously
detected" only on the initiating
alarm unit.
Push test button to clear
Alarm Memory. NOTE: stan-
dard test sequence will follow.
(Push/release button again to
cancel test).
Smoke Alarm Hush
Mode, (SMART
HUSH CONTROL)
Red LED ashes every 2 sec. After button push: "Hush Mode
Activated."
Smoke alarm pattern stops.
(If there is too much smoke to allow
Hush: Voice "Too Much Smoke, Alarm
cannot be Hushed" Smoke alarm
pattern continues.)
This feature is to be used
only when a known alarm
condition, such as smoke from
cooking, activates the alarm.
Locate None After button push on non-initiating
unit, only initiating unit continues
alarm pattern.
Use this to quickly locate the
alarm source and determine if
alarm is nuisance or real.
Smoke Alarm Hush
Mode Cancelled
None Voice message "Hush Mode
Cancelled."
When smoke levels drop
below the alarm threshold,
the voice message "Hush
Mode Cancelled" will occur .
Initiating Alarm,
(Multiple alarms in
an interconnected
system)
Red LED will ash on the unit
initiating the alarm, but the red LED
on other interconnected units will
not ash.
Unit in Smoke Alarm mode. Push button on initiating
alarm to silence that unit and
all interconnected units.

19
11. Recognizing Nuisance Alarms
Smoke Nuisance
HUSH: If you know why the alarm is sounding, and you can verify that it is not a life threatening situation, you can push
the button on the initiating unit (green LED flashing every second) to silence the alarm for 8-10 minutes. If the smoke is
not too dense, that unit, and all interconnected units will silence. After the Hush period, the smoke alarm will
automatically reset and sound the alarm if particles of combustion are still present. You can use Hush repeatedly until the
air has been cleared of the condition causing the alarm.
NOTE: Dense smoke will override Hush and sound a continuous alarm. If no fire is present, check to see if one
of the reasons listed in “Locations to avoid” may have caused the alarm. If a fire is discovered, get out and call
the fire department.
This alarm is designed to minimize nuisance alarms. Cigarette smoke will not normally cause the unit to alarm, unless the
smoke is blown directly into the alarm. Combustion particles from cooking may set off the alarm if it is located too close
to a cooking appliance. Large quantities of combustible particles are generated from spills or when broiling. Using the fan
on a range hood which vents to the outside (non-recirculating type) will also help prevent nuisance alarms from occurring
by removing these combustible products from the kitchen.
Locate
In an interconnected system (all units will be alarming together), a unit that detects smoke and initiates an alarm is called
the “initiating alarm unit.” Initiating alarm units will be flashing the Green LED every second during alarm. Depending on
unit locations, and the location of the source of smoke, it is possible to have more than one initiating unit. If you suspect a
nuisance alarm situation, you can use this feature to help you locate the initiating alarm unit(s) in a wireless alarm
interconnect system.
Push the button on any non-initiating wireless unit, and ALL wireless units EXCEPT the initiating alarm unit(s) will silence
for two minutes. You can use the LOCATE feature repeatedly until you find the initiating alarm unit(s), or the air has been
cleared of the condition causing the alarm.
NOTE: Hush and Locate features are dependent on the type of models in your interconnected system.
Non-wireless models cannot receive the wireless Locate feature and will continue to alarm until the initiating unit is
Hushed or the Smoke/ CO condition clears.
WARNING: THIS UNIT DOES NOT DETECT CARBON MONOXIDE CO, BUT IT WILL TRANSMIT A CO
ALARM SIGNAL FROM AN INTERCONNECTED CO OR SMOKE/CO COMBINATION ALARM. THE LOCATE
FEATURE CAN BE USED FOR CO ALARM EVENTS ALSO PUSHING THE TEST/ HUSH BUTTON ON A
COMPATIBLE INTERCONNECTED ALARM, BUT IT IS IMPOSSIBLE TO DETERMINE THE SOURCE OF A CO
ALARM USING SIGHT OR SMELL. ALWAYS CONSIDER A CO ALARM EVENT AS DANGEROUS.
Operational Mode Visual Indications Audible Indications Action/Note:
Normal (standby) Green LED ashe approx every 60 sec.
Test (button press
when no alarm
condition is present)
•4 patterns of Red/Amber/Green.
•Test: Red LED ashes in time with
alarm pattern. Safety light will briey
illuminate on model Q4000LDCS-
WCH or Q4000LDCS-WBH.
•Green LED fade on/o at test
complete
• Button press sound
•Voice: "Testing, this is very loud. Press
now to cancel test. 5, 4, 3, 2, 1."
•3 long beeps, Voice "Fire!", 3 long
beeps, Voice "Test Complete," Power
on/reset sound.
•Voice "Test Cancelled" if button
pushed before test sequence
begins.
Perform Test/Hush button
press once a week to verify
proper alarm operation
Push/release button before
the countdown ends to
cancel test.
Smoke Alarm
Memory (unit has
experienced a
smoke alarm event
within the last hour)
Red and Amber LED alternate on
1 sec, every 10 sec.
After button push: "Smoke previously
detected" only on the initiating
alarm unit.
Push test button to clear
Alarm Memory. NOTE: stan-
dard test sequence will follow.
(Push/release button again to
cancel test).
Smoke Alarm Hush
Mode, (SMART
HUSH CONTROL)
Red LED ashes every 2 sec. After button push: "Hush Mode
Activated."
Smoke alarm pattern stops.
(If there is too much smoke to allow
Hush: Voice "Too Much Smoke, Alarm
cannot be Hushed" Smoke alarm
pattern continues.)
This feature is to be used
only when a known alarm
condition, such as smoke from
cooking, activates the alarm.
Locate None After button push on non-initiating
unit, only initiating unit continues
alarm pattern.
Use this to quickly locate the
alarm source and determine if
alarm is nuisance or real.
Smoke Alarm Hush
Mode Cancelled
None Voice message "Hush Mode
Cancelled."
When smoke levels drop
below the alarm threshold,
the voice message "Hush
Mode Cancelled" will occur .
Initiating Alarm,
(Multiple alarms in
an interconnected
system)
Red LED will ash on the unit
initiating the alarm, but the red LED
on other interconnected units will
not ash.
Unit in Smoke Alarm mode. Push button on initiating
alarm to silence that unit and
all interconnected units.

20
12. Batter y
NOTE: This alarm is powered by a non-replaceable, sealed lithium battery system. No battery installation or
replacement is necessary for the life of the alarm.
IMPORTANT: Constant exposure to high or low humidity or temperatures may reduce battery life.
WARNING: NO SERVICEABLE PARTS INCLUDED. DO NOT ATTEMPT TO OPEN THE ALARM FOR ANY
REASON! DO NOT TRY TO REPAIR THE ALARM BY YOURSELF.
Low Battery
This alarm is equipped with a low battery monitor circuit. If the battery capacity can no longer provide adequate power
for all alarm functions, the low battery condition will occur. See Section 9 : Troubleshooting Guide. The unit must be
replaced within 7 days of the first occurrence of the “Low Battery Warning” to provide continuous alarm protection.
13. Permanently Disable Alarm / Discharge Battery
WARNING: FAILURE TO DISCHARGE ALARM BATTERY AS INSTRUCTED PRIOR TO
DISPOSAL MAY CREATE POTENTIAL FOR LITHIUM BATTERY RELATED HAZARD.
WARNING: DISCHARGING THE ALARM BATTERY IS PERMANENT
•Once the alarm battery has been discharged, it cannot be reactivated!
•Once discharged, the alarm will NO LONGER DETECT SMOKE.
•Once the alarm battery is discharged, the battery is depleted and the alarm will no longer function.
•Once the alarm battery has been discharged, the alarm cannot be mounted onto the mounting plate or reactivated.
To Permanently Disable Alarm / Discharge Battery:
•Rotate the alarm counterclockwise to remove it from the mounting plate.
•Push in the dashed area with a screwdriver to break tab (Figure 12-A).
•After the tab is broken, use the screwdriver to turn the red slotted arrow
to the "Permanently Disable Alarm / Discharge Battery" location. This
will disable the alarm, stop the low battery or end of unit life “chirps” and
render the alarm safe for disposal by draining the battery (Figure 12-B).
Figures 12-A (top) and 12-B (bottom)