nest PROTECT User manual

Google Nest Protect (Wired 120V ~ 60Hz)
Smoke and carbon monoxide alarm
User’s Guide
Let’s get started

Inside the box you’ll nd:
Nest Protect Backplate 4 mounting screws 120V connector
3 wire connectors
5
Meet your Nest Protect
Nest Protect is designed to detect smoke and
carbon monoxide in a residential environment.
It has multiple sensors to help it understand what’s
happening in your home, including a Split-Spectrum
Sensor to detect a wide range of slow-smoldering
and fast-aming res.
This guide covers the installation of Nest Protect
(Wired) - Model number 06C.
Requirements
You need Wi-Fi, an iOS or Android phone or tablet,
and a free account in order to use some Nest Protect
features: spoken room names, wireless mobile
notications, and soware updates. During setup,
Wi-Fi and a free account are required for wireless
interconnect and room naming. Aer all the Nest
Protects in your home are connected, they can
communicate with each other without Wi-Fi.

5.3 in
(13.5 cm)
1.5 in
(3.9 cm)
Micro-USB connector
(not for normal use).
AC connector pins for
the 120V connector.
Baery compament:
Three AA Energizer® Ultimate
Lithium baeries (L91).
The horn enables Nest Protect
to ale you with a loud
emergency sound.
The speaker allows Nest
Protect to speak with a
human voice.
Push the buon to hush alarms
or run a test.
The light ring changes color to
ale you.
6

GET IT ON
7
1. Get the Nest app
Before you install your Nest Protect on the ceiling
or wall, you’ll need to set it up with the Nest app.
Download the app from the Apple App Store or
Google Play and create a free account. You can
use a phone or tablet for setup.
Setup and installation
(Professional installation recommended)
The installation of a smoke and CO alarm should be
made by a qualied technician, and all wiring used to
install this alarm should be made in accordance with
aicles 210, and 300.3B of the National Electrical
Code ANSI/ NFPA 70, NFPA 72, and/or applicable
codes in your local jurisdiction.
Refer to the included Safety and Warranty
document for regulatory information and
additional precautions.

Already added New
8
Tip: Your Nest Protect came packed in a plastic
cover. Keep the cover on so your Nest Protect
stays clean until you install it.
3. Have more Nest Protects?
The Nest app will ask if you have more Nest Protects
to set up. If you do, it’ll take you through a faster
setup. Be sure to keep all your Nest Protects together
until they’re all set up and ready to be installed.
Tip: Lay everything out on a table for easy setup.
2. Set up Nest Protect
The Nest app will guide you through each step:
scanning the Nest Protect QR code, connecting it to
the internet, and connecting it to other Nest Protects
in your home. Go to g.co/nest/installprotect to
watch the video.

Breaker box
WARNING
ELECTRICAL SHOCK HAZARD
Failure to turn o the power may result in
serious electrical shock, injury and death.
9
4. Test before you install
Once you’re done seing up all of your Nest
Protects, make sure they’ve been added to your
account. Push the buon on one Nest Protect and
follow the instructions. All of your Nest Protects
should speak up. Now you can install them on the
ceiling or wall.
Tip: To double check Nest Protect’s room name,
press the buon once. You’ll hear the location you
assigned it during setup. It’ll say something like,
“Ready in the bedroom.”
5. Turn o power
Protect yourself and avoid blowing a fuse. Switch o
the correct circuit breaker for the room where you
are installing Nest Protect or remove the fuse from
the fuse box.

1
22
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7. Remove the old backplate
Unscrew the backplate from the electrical box. Save
the screws to install the Nest Protect backplate later.
6. Remove your old smoke alarm
To prevent electrical shock, make sure the green
power light is o on the alarm. You may have to twist
the alarm to release it. Carefully remove it to keep
from damaging your ceiling or wall.
Tip: Your old smoke alarm might make a loud noise
when you disconnect it.

BEDROOM MASTER
BEDROOM
LIVING/
FAMILY
ROOM
KITCHEN
GARAGEBASEMENT
HALL
ATTIC
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Location in your home
The National Fire Protection Association (NFPA)
recommends installing a smoke alarm in the
following areas:
• On every oor, including nished aics and
basements.
• Inside and outside every sleeping area.
• At the top of the rst- to second-oor
stairway and on the basement ceiling near
the entry of the stairs.
• In homes with more than 1,000 square feet
(93 m2) on one level, additional alarms may
be required.
Nest Protect should be installed at least
10 feet (3 m) away from cooktops or
cooking appliances.
Nest Protect should NOT be installed in
unnished aics or garages.

White:
Neutral line
Black:
Power line
Bare copper
Red/orange/yellow:
Interconnect
3/8 in (1 cm)
The exposed wire should be straight.
12
9. Aach the Nest connector
Hold the white wire ends together, cap them with a
wire connector and twist clockwise until it’s secure.
Do the same with the black wires. There’s no need
for the red/orange/yellow wire. Simply cap it with a
wire connector and twist until secure.
8. Remove the old connector
Unscrew the wire connectors to detach the 120V
connector from your old smoke alarm.

Figure 2
Figure 3
Figure 4
12 in
(30.5 cm)
Maximum
BEST
ON CEILING
CEILING
WALL
OKAY
ON WALL
Figure 1
NOT IN
THIS AREA
ANYWHERE IN
THIS AREA
NOT IN
THIS AREA
ANYWHERE IN
THIS AREA
4 in
(10 cm)
4in
(10 cm)
3ft
(0.9 m)
3ft
(0.9 m)
3ft
(0.9 m)
13
Placement on the ceiling or wall
Installing on the ceiling is recommended.
Mark where the screws will go using the base
as a guide. If you’re installing on the wall,
make sure it’s within 12 inches of the ceiling.
Placement on a sloped ceiling
If you have a sloped, peaked or cathedral ceiling,
Nest Protect should be 4 inches to 3 feet
(10 cm – 1 m) from the highest point.

14
Tip: All smoke alarms prefer to live in a dust
free area, so remove any dust before you
install Nest Protect.
10. Install the new backplate
Screw the Nest Protect backplate to the electrical
box, reusing the old screws. You can also screw the
backplate directly into the wall or ceiling with the
Nest Protect screws. Make sure the screws are all
the way in and snug against the backplate.
11. Connect power
Plug the 120V connector into the back of your
Nest Protect.

2
2
1
1Breaker box
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12. Install your Nest Protect
First, tuck any excess wiring into the electrical box.
Line up the three tabs on the back of your Nest
Protect with the notches on the backplate. Hold Nest
Protect against the backplate and turn it clockwise.
Continue turning until it’s square with the wall or
ceiling. Install the rest of your Nest Protects if you
have more.
13. Switch power back on or replace the fuse
Tip: If you ever need to remove it (for cleaning or
baery replacement), turn o power to your Nest
Protect at the breaker box or remove the fuse rst.
Then turn counterclockwise until it disconnects from
the backplate.
14. Press to test
Press the buon on one Nest Protect. It will tell you
what to do next. Every Nest Protect in the house
should speak up, conrming that they’re connected
to each other.

16
Heads-Up and Emergency Alarms
Silencing
Heads-Up ales and some Emergency Alarms can
be hushed by using the Nest app or pressing the
buon. In some cases, the smoke level may be too
high for the Emergency Alarm to be hushed. Only
silence an alarm once you have checked conditions
at the Nest Protect that rst sounded the alarm.
Do not silence Nest Protect by disconnecting it
from line voltage and removing the baeries. This
will disable the alarm so it cannot sense smoke or
carbon monoxide, leaving you at risk.
Because there are many dierent types of res,
you may experience an Emergency Alarm without
having rst experienced a Heads-Up ale. This
means that critical levels of smoke or CO occurred
extremely quickly and Nest Protect has to sound the
Emergency Alarm.
Have more than one Nest Protect?
Aer all the Nest Protects in your home are
connected to each other, if there’s a Heads-Up or
an Emergency Alarm in one room, they’ll all tell you
what the danger is and which room it’s in.
If multiple Nest Protects are interconnected, a
Heads-Up ale or Emergency Alarm can be silenced
only at the Nest Protect that originally sounded the
ale. You’ll need to go to that room to silence all
the Nest Protects in your home. Always check the
conditions near the Nest Protect that rst detected
the smoke or carbon monoxide before silencing it.
Ales
When Nest Protect has something to say, it will
speak to you in words and light up instead of just
beeping. Nest Protect has two kinds of voice ales:
Heads-Up and Emergency Alarms.
When smoke or carbon monoxide levels are
heightened but haven’t yet reached Emergency
Alarm levels, Nest Protect can sound a Heads-Up as
an early warning. Nest Protect will pulse yellow and
tell you where there’s smoke or carbon monoxide.
You’ll get an Emergency Alarm when smoke or
carbon monoxide reach critical levels. Nest Protect
will pulse red, sound a loud alarm, and tell you what
room the emergency is in. If there’s both smoke and
CO present, the smoke alarm will take priority.

What You Hear
Silencing
What It Means What To Do
“HEADS-UP. THERE’S
SMOKE IN THE [ROOM
NAME]. THE ALARM
MAY SOUND.”
Smoke levels are rising. Put out the source of the
smoke. Then use the Nest
app or press the buon to
hush the ale.
Open a window or door
to get fresh air. Then use
the Nest app or press the
buon to hush the ale.
Get out of the house
immediately.
Make sure you’re safe and
have put out the source of
smoke or carbon monoxide.
Make sure you’re safe and
have put out the source or
smoke or carbon monoxide.
1) Operate reset/
silence buon.
2) Call your re dept. or 911.
3) Move to fresh air.
4) Do not reenter the
premises until the
emergency services
tell you to.
Carbon monoxide
levels have been high
for a while.
You’ve hushed an ale.
Nest Protect will now keep
quiet, unless smoke or
carbon monoxide remains
at critical levels.
Smoke or carbon monoxide
levels are decreasing.
The carbon monoxide in
the room has reached
critical levels.
“HEADS-UP. THERE’S
CARBON MONOXIDE IN
THE [ROOM NAME]. THE
ALARM MAY SOUND.”
(Alarm horn)
“EMERGENCY. THERE’S
CARBON MONOXIDE IN
[ROOM NAME]. MOVE
TO FRESH AIR.”
(Alarm horn)
“EMERGENCY. THERE’S
SMOKE IN [ROOM NAME].”
“SMOKE ALARM HUSHED.”
“CARBON MONOXIDE
ALARM HUSHED.”
“THE ALARM IS OVER.”
YELLOW pulses.
YELLOW pulses.
RED pulses.
RED pulses.
YELLOW or
RED pulses.
GREEN pulses.
What You See
Heads-Up and Emergency Alarms
The smoke in the
room has reached
critical levels.
Ales
17

18
Daily Use
Power
Nest Protect (Wired 120V) has a small green light
located at the top of the buon. It will be on as
long as Nest Protect is geing AC power from the
electrical wires.
If there’s a wiring problem or power outage, the
green light will turn o and Nest Protect will switch
to backup baeries. You’ll also see a yellow (instead
of green) Nightly Promise light when you turn o the
lights for the night.
Nightly Promise
Nest Protect continuously tests itself, so you don’t
have to wonder if it’s working. Nightly Promise
repos on every Nest Protect in your home.
When you turn out the lights for the night, Nest
Protect will glow green for a moment – that means
everything is working. If it glows yellow, one of the
Nest Protects in your home needs your aention.
For instance, the baeries are low, Wi-Fi is down,
or there’s an issue with the sensors. Just push the
buon or use the Nest app to see what’s wrong.
Pathlight
Usually Nest Protect has its light turned o, but it
can light your way as you walk underneath it in the
dark. You can enable or disable Pathlight and set its
brightness with the Nest app.
Daily Use and Emergency Preparation
Emergency Preparation
Testing
Peorm a manual test of your wired Nest Protect
at least weekly. During a test, all interconnected
Nest Protects in your home check their sensors,
power, Wi-Fi connection, light ring, emergency horn,
speaker and microphone.
When you run a test, Nest Protect will give you a
countdown before sounding the alarm so you have
time to move away from the loud noise.
Test procedure:
1. Sta a test by pressing the buon twice.
2. Nest Protect will say: “This is only a test. The alarm
will sound.”
3. Ensure that the alarm sounds and the light
illuminates on each Nest Protect.
4. Once the Nest Protect has made sure it’s working, it’ll
tell you everything’s okay. If you have interconnected
Nest Protects, all of them should speak.
Sound Check
Nest Protect can automatically peorm a monthly
test to conrm that its speaker and horn are
working properly. You can choose to enable this
option during initial setup with the app, but you can
change it at any time. For more information, visit
g.co/nest/soundcheck

Daily UseEmergency
Preparation
You turn o the
room lights for
the night, and
the GREEN light
pulses once.
WHITE light.
BLUE rotates.
Sleep well thanks to
Nightly Promise.
Press the buon. Nest
Protect will walk you
through next steps.
Nest Protect has tested
its sensors, power and
Wi-Fi to conrm they are
working correctly.
Pathlight lights your way at
night as you pass under it.
To set up or run a
manual test.
“READY. PRESS TO TEST.”
Daily Use And Emergency Preparation
WARNING
• DO NOT stand close to the alarm when the
horn is sounding. Exposure at close range may
be harmful to your hearing. When testing, step
away before the horn stas sounding.
• If the alarm ever fails to test correctly,
have it replaced immediately! If the alarm
is not working properly, it cannot ale you
to a problem.
• DO NOT use a match, cigaree or any other
makeshi re to test the smoke alarm.
• To test the CO alarm, NEVER use vehicle
exhaust! Exhaust may cause permanent
damage and will void your warranty.
• NEVER use an open ame of any kind to test
this alarm. You might accidentally damage or
set re to the unit or to your home.
GREEN light above
the Nest logo. Nest Protect is working. The green light means
AC power is connected.
19
What You Hear What It Means What To Do
What You See

3
2
1
3
2
1
6
5
4
3
2
1
3
2
1
6
5
4
Replacing the backup baeries
In case of a power outage, Nest Protect will use
three AA Energizer® Ultimate
Lithium baeries (L91) for
backup. These baeries can be
purchased at your local retailer.
1. Turn o power to Nest Protect
at the breaker box (see p.9)
2. Twist Nest Protect
counterclockwise until
it disconnects from the
backplate.
3. Detach the power connector from the back of
Nest Protect and open the baery door.
4. Replace the baeries. Align the + positive
and - negative ends with the markings in the
baery compament.
5. Close the baery compament. Do not force the
door closed.
6. Reaach the power connector.
7. Push Nest Protect onto the backplate and turn it
clockwise until you feel it grip.
8. Turn power to Nest Protect back on at the
breaker box.
9. Press the buon twice.
Servicing
If your Nest Protect needs servicing, rst contact
our suppo team at g.co/nest/suppo to get a
return number and shipping information.
Cleaning your Nest Protect
Nest Protect has been designed to be as
maintenance free as possible, but you should keep
it clean. As with any smoke alarm, dust buildup on
the outside or inside of Nest Protect can stop it
from working properly.
To clean Nest Protect:
1. Remove it from the wall or the ceiling
(turn counterclockwise until it comes o
the backplate).
2. Wipe the outside with a clean, slightly damp cloth.
Don’t use any soaps or solvents.
3. Place Nest Protect on a so, dry cloth with
the buon facing down. Open the baery
compament door and remove the baeries.
Remove the screws and li o the back. Be
careful to not lose the screws.
4. Gently vacuum the inside. Make sure to clean
all the way around the mesh sides of the smoke
chamber (the large metal circle).
Note: Never use detergents or solvents (like glass
cleaner) on your Nest Protect and do not spray air
fresheners, hair spray or other aerosols near it. Do
not get water inside the alarm or paint over it.
20
General Maintenance

General Maintenance
YELLOW pulses. Low baery. Change the baeries of
Nest Protect now.
Nest Protect has tested
its sensors and there is
a problem.
Nest Protect has expired
and reached the end of
its life.
Replace Nest Protect now.
There’s a problem with the
horn of Nest Protect.
Replace Nest Protect now.
YELLOW pulses. Change the baeries of
Nest Protect soon.
Low baery.
YELLOW pulses.
YELLOW pulses.
General maintenance
YELLOW pulses. Clean according to
instructions on p. 20.
If the problem persists,
replace Nest Protect.
“THE BATTERY IS LOW
IN THE [ROOM NAME].
REPLACE THE BATTERY
NOW.” Single chirp every
60 seconds.
“THE SENSORS HAVE FAILED
IN THE [ROOM NAME].
REPLACE NEST PROTECT
NOW.” Single chirp every
60 seconds.
“NEST PROTECT HAS
EXPIRED. REPLACE IT
NOW.” Two chirps every
60 seconds.
“NEST PROTECT CAN’T
SOUND THE ALARM IN
THE [ROOM NAME].”Two
chirps every 60 seconds.
“THE BATTERY IS LOW
IN THE [ROOM NAME].
REPLACE THE BATTERY
SOON.”
WARNING
• Use only baeries specied by Google. Use of a
dierent baery model will have a detrimental
eect on the smoke alarm operation.
• Never remove the baeries to stop an unwanted
alarm (caused by cooking smoke, etc.)
Removing the baeries disables the alarm so it
cannot sense smoke or carbon monoxide (CO).
Instead open a window or fan the smoke away
from the unit.
• The baeries cannot work until you install
the baeries in the correct position
(Match + to + and - to -).
• Once Nest Protect has expired you’ll
no longer be protected from smoke or
CO if you don’t replace it.
21
What You Hear What It Means What To Do
What You See

22
Expiration
Like any smoke and CO alarm, Nest Protect has a
limited life. You will need to replace Nest Protect
aer 10 years with a brand new Nest Protect. You
can check the date of replacement wrien on the
back of Nest Protect to see when it will expire.
About two weeks before it expires, Nest Protect will
light up with a yellow light. Press the buon and it will
say, “Nest Protect has expired. Replace it now.” Buy
a new alarm and recycle the expired one. Make sure
you test your new Nest Protect once it’s installed.
Recycling and Disposal
Once Nest Protect has expired you will need to
recycle it according to local regulations. Please
visit g.co/nest/recycle for more information.
Reseing Nest Protect
You can reset Nest Protect to erase all your seings
and reset the wireless interconnection with other
Nest Protects. You may want to do this when you
move to a new home. Follow the steps below on
each Nest Protect you want to reset.
1. Press and hold the buon. Nest Protect will chime
and glow blue.
2. Keep holding the buon until Nest Protect begins
to say its version number. Then release the buon.
3. Nest Protect will sta a verbal countdown
and tell you it’s erasing all seings. You can
cancel the reset by pressing the buon during
the countdown.
4. Aer a few seconds it will resta.
Your Nest Protect will still detect smoke and carbon
monoxide aer being reset.
Go to g.co/nest/protectreset for complete
reset instructions.
General Maintenance