Ecobee 3 smarter wi-fi thermostat User manual

1
User Guide
ecobee3
©2014 ecobee
477 Richmond St West | 2nd Floor, Toronto | Ontario |
M5V 3E7 | Canada Toll free 1.877.932.6233
www.ecobee.com
e3-UG-R001

2
Table of Contents
Overview .................................................................................. 4
Getting Help .................................................................................... 4
Touch Screen................................................................................... 4
Web Portal ....................................................................................... 5
Guided Setup Process ............................................................. 5
Step 1. Wiring Configuration.......................................................... 5
Step 2. Accessory Confirmation ................................................... 5
Step 3. Temperature Preference Setup ....................................... 6
Step 4. Equipment Configuration ................................................. 6
Heat Pumps.................................................................................. 6
Furnaces/Boilers........................................................................... 6
Fans ............................................................................................... 6
Humidifier...................................................................................... 6
Dehumidifier................................................................................. 6
Ventilators (ERV/HRV) ................................................................. 7
Step 5. Name Your Thermostat ..................................................... 7
Step 6. Configure Ideal Temperatures......................................... 7
Step 7. Select Current HVAC System Mode................................ 7
Step 8. Configure Sensor Settings ................................................. 7
Step 9. Wi-Fi Configuration ............................................................ 7
Step 10. Date & Time ...................................................................... 8
Step 11. Web Portal/Mobile App Registration ............................ 8
Basic Functions ........................................................................ 9
Home Screen................................................................................... 9
Standby Screen............................................................................... 9
Adjusting the Temperature............................................................ 9
Main Menu..................................................................................... 10
Quick Changes ............................................................................. 10
Weather ......................................................................................... 11
System Icons .................................................................................. 11
Selecting System Operation Mode ............................................ 11
HVAC System ............................................................................. 11
Fan............................................................................................... 12
Humidifier (if installed)............................................................... 12
Dehumidifier (if installed).......................................................... 12
Ventilator/HRV/ERV (if installed).............................................. 13
Adjusting Sensor Modes ............................................................... 13
Smart Home/Away.................................................................... 13
Follow Me ................................................................................... 13
Adjusting Comfort Settings .......................................................... 14
Setting Your Weekly Schedule .................................................... 15
Going on Vacation....................................................................... 16
Caring for your Thermostat................................................... 17
Cleaning......................................................................................... 17
Rebooting ...................................................................................... 17
Resetting the Thermostat ............................................................. 17
Troubleshooting............................................................................. 17
Reminders & Alerts ................................................................ 18
Viewing Reminders ....................................................................... 18
Viewing Alerts ................................................................................ 18
Configuring Reminders & Alert Preferences.............................. 18
HVAC Maintenance ................................................................. 18
Furnace Filter.............................................................................. 19
Ventilator Filter (if installed) ...................................................... 19
UV Lamp ..................................................................................... 19
Low Temp Alert .......................................................................... 19
High Temp Alert ......................................................................... 19
Aux Heat Runtime Alert ............................................................ 19
Aux Outdoor Temp Alert .......................................................... 19
Low Humidity Alert..................................................................... 19
High Humidity Alert.................................................................... 19
Display Alerts on Thermostat.................................................... 19
Enable Heating/Cooling Alerts................................................ 19
Lost Communication With Sensor/Low Battery Alerts .......... 20
Customizing Your Thermostat............................................... 20
Date & Time ................................................................................... 20
Temperature Display..................................................................... 20
Heating/Cooling Ranges ............................................................. 21
Thermostat Name ......................................................................... 21
Screen Brightness .......................................................................... 21
Active to Standby Screen Timer ................................................. 21
Hold Action Duration.................................................................... 21

3
Smart Recovery............................................................................. 22
Access Control .............................................................................. 22
Configuring Wi-Fi Settings .....................................................23
Wi-Fi Radio ..................................................................................... 23
Network .......................................................................................... 23
Advanced Settings ................................................................... 23
Diagnostics..................................................................................... 23
Managing Your Account ......................................................24
Registering ..................................................................................... 24
Making Changes to Your Account ............................................ 24
Moving to New House.................................................................. 24
Changing Thermostat Owner ..................................................... 24
Installation Settings ................................................................ 24
Equipment Wiring.......................................................................... 24
Equipment Settings ....................................................................... 24
Heat Pump ................................................................................. 24
Furnace....................................................................................... 25
Humidifier.................................................................................... 25
Dehumidifier............................................................................... 25
Ventilator .................................................................................... 26
Reconfiguring Equipment ........................................................ 26
Thresholds....................................................................................... 26
Auto Heat/Cool......................................................................... 26
Heat/Cool Min Delta ................................................................ 26
Compressor Min Cycle Off Time.............................................. 26
Compressor Min Outdoor Temp.............................................. 27
AC Overcool Max ..................................................................... 27
Aux Heat Max Temp ................................................................. 27
Heat Differential Temp.............................................................. 27
Heat Dissipation Time................................................................ 27
Heat Min On Time...................................................................... 27
Cool Differential Temp.............................................................. 28
Cool Dissipation Time................................................................ 28
Cool Min On Time...................................................................... 28
Compressor Reverse Staging................................................... 28
Compressor Stage 2 Temp Delta ............................................ 28
Compressor Stage 1 Max Runtime ......................................... 28
Compressor to Aux Temp Delta .............................................. 28
Compressor to Aux Runtime .................................................... 29
Temperature Correction........................................................... 29
Installer Code............................................................................. 29
Test Equipment .............................................................................. 29
Wiring Diagrams .................................................................... 30
Conventional heating and cooling ........................................... 30
Heat Only.................................................................................... 30
Heat and Cool........................................................................... 30
Heat and Cool (2 Stage Heat)................................................ 30
Heat pumps ................................................................................... 31
Air or Geothermal Heat Pump with Auxiliary Heat ............... 31
Air or Geothermal Heat Pump (2 Stages) with Auxiliary Heat
..................................................................................................... 31
Boiler or radiant systems............................................................... 31
Boiler or Radiant System with Air Handler and Conventional
Cooling or Heat Pump.............................................................. 31
Boiler or Radiant System (2 stages) with Air Handler and
Conventional Cooling or Heat Pump..................................... 32
Accessory devices ........................................................................ 32
PEK thermostat wiring ................................................................... 32
Icon Reference ...................................................................... 33
Home Screen................................................................................. 33
System Operation ......................................................................... 33
Menus ............................................................................................. 33
Comfort Settings............................................................................ 33
Weather.......................................................................................... 33
WiFi Connectivity........................................................................... 33
Menu Reference.................................................................... 33
Approvals............................................................................... 35
FCC Compliance Statement ................................................ 35
3-Year Limited Warranty ....................................................... 36
End User Software License Agreement ............................... 37

4
Overview
Do you hear that?
That’s the sound of hundreds of thousands of ecobee-ers
welcoming you to the hive.
Congratulations on the purchase of your new ecobee3 smarter
wi-fi thermostat with remote sensor. This guide will provide an
overview of the features and capabilities of the new product
and will help you get up and running.
Make sure you also take a look at the Quick Start Guide and the
Installation Guide that come in the box with your ecobee3.
Remote sensors –Deliver the right temperature in the rooms
that matter most as well as detect when these rooms are
occupied.
Smart –Your ecobee3 understands your home’s unique
energy profile and the weather outside, making sure you’re
comfortable at all times.
Intuitive –With its 3.5" full color touch display, your ecobee3
has intuitive controls just like your smartphone.
Accessible from anywhere –Monitor and control the
temperature in your home anytime, anywhere, on your
smartphone, tablet, or computer.
Getting Help
If you have any questions, we have answers. Visit
https://www.ecobee.com/faqs/ecobee-3 for tutorials, how-to
videos and FAQs.
Technical support is also available by email or by phone:
[e-mail]
1.877.932.6233 (North America)
1.647.428.2220 (International)
Touch Screen
Your ecobee3 has a touch screen, similar to that used in
smartphones and tablets.
Touch items to select or activate them. For
menus with a >, this will expand the menu to
display additional options or submenus.
Swipe up and down to display additional
information. Swiping on a temperature bar will
also adjust the settings up or down.
Swipe left and right to scroll horizontal lists that
contain multiple items to choose from.
Exit or go
back
To exit a submenu, touch .
To close the main menu, touch .

5
Web Portal
Once registered (page 8), you can log in to your web portal
and manage your ecobee3 from your computer or tablet.
From the web portal, you can:
Control current temperature and operation
Adjust your schedule
Set vacation periods
View the weather forecast for your area
Set thermostat preferences
Manage all your ecobee thermostats
Save energy with HomeIQ and insights
To access your customized web portal, visit ecobee.com and
click on the Login link.
To select a tile, touch or click on it. To close a tile and return
back to the main screen, touch or click (top-right corner).
Guided Setup Process
The Installation Guide that ships with your ecobee has the
necessary instructions to wire up and install your device. After
installing your ecobee3 thermostat on the wall and powering it
up, you will be guided through the first-run process. Complete
these steps to get it configured and connected online so you
can make use of all its smart features.
This will take you through the following steps:
Wiring configuration and equipment configuration
Setting your preferences
Wi-Fi configuration
Registering your ecobee3
If you make a mistake at any time or want to review a setting,
you can touch Back to display the previous screen.
Step 1. Wiring Configuration
Your ecobee3 automatically detects and displays which wires
are connected to it when it first powers on. It will warn you if
you’ve wired a configuration that it doesn't recognize.
If the reported connections are different than what you have
actually connected, call ecobee support for guidance.
Touch Next to continue.
Step 2. Accessory Confirmation
Your ecobee3 will ask if you have any accessories like
humidifier, dehumidifier, or ventilator connected to it.
Touch Yes if you have one of these devices; otherwise touch
No.
If you selected Yes, you will need to specify if the accessory is
internally powered:
Touch Yes if your accessory is externally powered
(i.e. the ecobee3 does not provide power to it). This is the
case if there are connected to both ACC+ and ACC-.

6
Touch No if your accessory receives power from your
ecobee3. There will be a single wire to ACC+.
Need Help? See page 32 for information on how to determine
your accessory device's power configuration.
Touch Next to continue.
Step 3. Temperature Preference Setup
Your ecobee3 will ask you to select Fahrenheit or Celsius as your
preferred temperature units. Touch Next to continue.
Step 4. Equipment Configuration
Your ecobee3 will ask you to configure your equipment.
Depending on your wiring, different options will be available.
These options will configure basic system operation as well as
optimize the system for your specific type of equipment.
Review the list to see if any devices require additional
configuration ("Configuration needed") and if the default
settings are valid.
Once you are done, touch Next to continue.
Heat Pumps
If you have a heat pump installed:
1. Select the heat pump menu.
2. Select Air to Air or Geothermal depending on the type of
your heat pump system
3. Specify what the heat pump runs when the O/B
Reversing Valve is engaged: On Cool runs cooling when
O/B engages (most cases), or On Heat runs heating
when O/B engages.
4. Touch Next. You will be returned to the Equipment
configuration menu.
Furnaces/Boilers
If you have a furnace or boiler installed:
1. Select the heating menu.
2. Configure the heater type:
Furnace: Optimizes ecobee3 for systems using forced
air
Boiler: Optimizes your ecobee3 for systems using
radiators or in-floor heat.
3. Touch Next. You will be returned to the Equipment
configuration menu.
Fans
If your furnace uses forced air, you may configure fan
operation:
1. Select Fan menu.
2. Select Fan operation:
Thermostat: Your ecobee3 thermostat controls the fan
during heat and cool cycles.
HVAC: Your equipment controls the fan during heat
and cool cycles (typical configuration).
3. Touch Next. You will be returned to the Equipment
configuration menu.
Humidifier
If you have a humidifier installed:
1. Select Accessory menu.
2. Select Humidifier.
3. Touch Next.
4. Select the type of humidifier you have: Evaporative or
Steam. If unsure, select Evaporative.
5. Touch Next. You will be returned to the Equipment
configuration menu.
Dehumidifier
If you have a dehumidifier installed:
1. Select Accessory menu.
2. Select Dehumidifier.

7
3. Touch Next.
4. Select Open if the dehumidifier is active when the relay is
open; otherwise select Closed. If unsure, select Closed (if
the dehumidifier runs when it shouldn't, you can change
this option in the Equipment Configuration menu (page
24).
5. Touch Next. You will be returned to the Equipment
configuration menu.
Ventilators (ERV/HRV)
If you have a ventilator (ventilator, ERV or HRV) installed:
1. Select Accessory menu.
2. Select Ventilator.
3. Touch Next.
4. Select the type of ventilator you have installed:
Ventilator, Energy Recovery Ventilator or Heat Recovery
Ventilator.
5. Touch Next.
6. Select the preferred minimum runtime (min/hr) when your
home is occupied and the runtime for when your home is
unoccupied. If unsure, keep the default 20 min/hr value
or contact a professional.
7. For HRVs, select whether or not you would like to use it t
use it to dehumidify in winter.
8. For Ventilators, select whether or not you would like to
enable free cooling.
9. Touch Next. You will be returned to the Equipment
configuration menu.
Step 5. Name Your Thermostat
After configuring your equipment, you will be prompted to give
your ecobee3 a name. Select a name from the list or enter your
own using the on-screen keyboard.
This name will appear in your web portal, so pick a name that
makes it easy to identity your thermostat (this is especially
important if you have more than one in your house).
Touch Next to continue.
Step 6. Configure Ideal Temperatures
Next, slide the set-point bubble up and down to select the
preferred, normal temperature for your home during winter and
summer (touch Next after each). This setting will be used to
generate the default comfort settings.
Step 7. Select Current HVAC System Mode
Select the operating mode of your HVAC equipment. For
example, if you want to set your HVAC system to heat, select
Heat. If you do not want the system to run, select Off.
Touch Next to continue.
Step 8. Configure Sensor Settings
Your ecobee3 includes sensors that can determine when you
are home. You can have your thermostat automatically go into
energy savings mode when you are away. For a detailed
description of how the settings work, see page 13.
1. Enable or disable Smart Home/Away setting.
If enabled, your ecobee3 senses when you are home
during a scheduled Away period, or away during a
scheduled Home period, and will automatically override
your scheduled settings to maximize comfort and
savings.
2. Touch Next to continue.
Step 9. Wi-Fi Configuration
To get the most out of your ecobee3, it needs to connect to
your home's Wi-Fi network.
Touch Next to configure your network settings. If you do not
want the ecobee3 to connect to the Internet, touch Skip and
confirm the action by pressing Next.
When configuring your network settings, your ecobee3 will
display a list of all visible Wi-Fi networks along with their signal
strength. If your network has weak signal strength, try moving
your router closer to the ecobee3.

8
If your network appears in the list
1. Select your network from the list
2. Touch Next.
3. Enter your password, if prompted.
4. After connecting to the Internet, your ecobee3 will
register itself with the ecobee servers and provide you
with a 4-digit registration code.
5. Write down the 4-digit code. You will need it when
registering your ecobee3 (You can register from either
ecobee's Mobile App or Web Portal).
If it's not listed, select My network is not visible and touch Next
(you will have to enter your network parameters manually,
including the SSID).
1. If your network is password-protected, enter the
password.
2. This will take you through the manual Wi-Fi set-up process
where you will have to enter in information about your
network such as if it’s a DHCP or a static IP, the network
SSID name, the encryption, the password etc.
3. After connecting to the Internet, your ecobee3 will
register itself with the ecobee servers and provide you
with a 4-digit code.
4. Write down the 4-digit code. You will need it when
registering your ecobee3 (You can register from either
ecobee's Mobile App or Web Portal).
Touch Next to continue.
Step 10. Date & Time
The Date & Time screen lets you configure your time zone
settings. If you didn't configure Wi-Fi in the previous step, you
may need to reconfigure the current time and date. These
settings are required in order for the scheduling features of your
ecobee3 to work properly.
If Wi-Fi is configured:
1. Touch Time zone.
2. Select your country from the list and touch Next.
3. Select your time zone by picking the name of the nearest
community from the list.
4. Touch Next.
5. Touch Next to continue.
If Wi-Fi is not configured:
1. Touch Date.
2. Slide up and down to set the current date and touch
Save
3. Touch Time.
4. Slide up and down to set the current time and touch
Save.
5. Touch Time zone.
6. Select your country from the list and touch Next.
7. Select your time zone by picking the name of the nearest
community from the list.
8. Touch Next.
9. Touch Next to continue.
Step 11. Web Portal/Mobile App Registration
After setting up Wi-Fi on your ecobee3 and obtaining the
registration code, you need to configure your account from
either the ecobee3 Mobile App or the Web Portal.
To register from the Web Portal:
1. From a web browser, visit www.ecobee.com
2. Click on the Register link.
3. Follow the on-screen instructions to register your account.
To register from the Mobile App:
1. Download the app to your iPhone or Android device
from the respective app store.
2. Launch the ecobee3 app.
3. Follow the on-screen instructions to register your account.

9
Basic Functions
The bright, easy-to-read touch screen on your ecobee3
thermostat makes it simple to review and adjust settings any
time you want.
Home Screen
Your ecobee3 will automatically display the home screen when
you approach it.
1
Current system mode and any equipment
currently running
2
Current relative humidity
3
Current indoor temperature
4
Messages indicating any special operating
mode or state (e.g. resume, temperature
hold, etc)
5
Main menu. If a dot appears on the icon,
you have important message(s) to read.
6
Weather forecast
7
Quick Change menu
8
Adjustable heat and cool set points. If the
System Mode is set Auto, both are
displayed; otherwise only heat or cool is
displayed.
Standby Screen
The standby screen activates whenever the thermostat is not in
use. It shows the current indoor temperature and outdoor
weather conditions.
1
Current indoor temperature
2
Current outdoor weather
conditions
The standby screen is configurable. You can adjust:
Standby screen activation time (page 21)
Standby screen brightness (page 21)
Adjusting the Temperature
You can override the scheduled temperature by moving the
bubble on the temperature slider up or down. The blue number

10
represents the cool set point; the orange number represents the
heat set point.
The new desired temperature will be the set point used for the
Hold. The duration of the Hold is the last configured value (the
default value is Until I change it, meaning it keeps the value
indefinitely, until you choose to revert to the schedule or
change it). You can adjust the default Hold time in the
Preferences menu (page 21).
To cancel the current Hold, touch the Hold message box
displayed on the Home screen. You can touch the box
anywhere and not just the X displayed on the box.
Main Menu
To show the main menu, touch the screen and touch .
Registration
Registers your ecobee3. This menu item
disappears after you have registered.
System
Selects mode of operation:
heat/cool/auto, fan on/off, and any
accessory (page 11)
Sensors
Manages sensors and lets you adjust Smart
Home/Away and Follow Me settings (page
13)
Schedule
Manages temperature according to time
and day (page 15)
Comfort
Settings
Manages temperature for different climate
states (Away, Home, Sleep) (page 14)
Vacation
Manages thermostat settings for a vacation
period (page 16)
Reminders
& Alerts
Displays any reminder or alert messages
(page 18)
Settings
Manages display preferences (°F/°C,
date, brightness), Wi-Fi, and equipment
operating parameters (thresholds,
sensors, etc) (page 20)
About
Displays technical information about your
thermostat (page 17).
Quick Changes
The Quick Changes screen lets you quickly adjust the operation
of the ecobee3 and your equipment.
1
Current time and date display
2
Home and Away buttons. Touch these buttons
to override your programmed schedule. To
cancel this action, touch the message box on
the Home screen.
3
Toggle fan between Auto and On. Touch On
to run the fan continuously. Touch Auto to run
the fan according to the Minimum Runtime per
Hour setting (page 24).
4
If you have a ventilator, ERV or HRV installed,
touch On to run the device for 20 minutes
(page 26)
5
Icons indicate if heat, cool, fan, and any
accessories are actively running (see page 11

11
for icon descriptions)
6
Internet connection and ecobee server
connection status. If this icon is red, you can
contact our technical support team for help
(page 4).
Hint: You can also apply quick changes from the web portal by
clicking on the Fan or Quick Changes tiles.
Weather
Touch the Weather icon to display a local weather forecast for
the week as well as a detailed daily forecast.
1
Current weather conditions
2
Current outdoor temperature
3
Probability of precipitation (POP), relative
humidity, and daily high/low temperature
4
24-hour weather forecast
Note: To receive the local weather forecast, you must first
register your thermostat (page 22). For a complete list of
weather icons, see page 33.
System Icons
The icons on the Home screen and Quick Changes menu show
information about the status of your HVAC system.
Heat
An orange heat icon indicates that your
thermostat is calling for heat. A white heat
icon indicates that your system is in heat or
auto mode but is not currently calling for heat.
Cool
A blue cool icon indicates that your
thermostat is calling for cool. A white cool
icon indicates that your system is in cool or
auto mode but is not currently calling for cool.
Fan
A fan icon indicates that your thermostat is
calling for the fan to run.
Auto
If both heat and cool icons are shown, your
system is in Auto mode, meaning your
ecobee3 will call for heat or cool as required.
Selecting System Operation Mode
The System menu controls the basic operation of the different
components in your HVAC system, including the heat/cool
mode, fan operation, and the operation of accessories like
humidifiers, dehumidifiers, and ventilators.
HVAC System
The HVAC System settings depend on the type of system you
have. Depending on your system, one or more the following
options are shown:
Cool: Turn on the air conditioner when the current
temperature rises above the set temperature.
Heat: Turn on the heat when the current temperature drops
below the set temperature.
Auto: Activate the heating or cooling system as required to
keep your home within the configured range of set
temperatures.

12
Aux: Only use the auxiliary or backup heat source to
maintain the heat set point temperature. This option only
appears if auxiliary heat is configured in the Equipment
menu.
Off: Turn the system off. When the system is off, only the
current temperature will be displayed on the Home screen.
On Thermostat and Mobile:
Select Main Menu > System > HVAC System
On Web:
Select System tile > HVAC
Fan
The Fan menu displays the current furnace fan setting.
Depending on your system, one or more of the following options
are shown:
On: Force fan to run continuously, regardless of the
scheduled programming. The fan will also run if the System
Mode is Off.
Auto: Enable fan when the system is actively heating or
cooling your home, or to satisfy the Minimum Fan Runtime
setting (page 12).
On Thermostat and Mobile:
Select Main Menu > Quick Changes > Fan
On Web:
Select Fan tile
Minimum Fan Runtime (Auto mode only)
When the fan is in Auto mode, ecobee3 operates it according
to the Minimum Fan Runtime setting. You can adjust this setting
from 0 to 55 minutes.
When your system is in heat or cool mode, the fan will always
run for this minimum amount of time. A longer runtime improves
air circulation and results in a more consistent temperature than
with the Auto setting while being more cost-effective than the
On setting.
Your ecobee3 will meet this minimum runtime over the hour
while making sure it never runs for less than five minutes.
On Thermostat and Mobile:
1. Select Main Menu > System > Fan
2. Swipe left or right to adjust the value.
On Web:
1. Select System Tile > Fan
2. Swipe or drag left or right to adjust the value.
Humidifier (if installed)
The Humidifier menu enables or disables the humidifier, if
installed:
On: Run the humidifier to increase the humidity to the
configured set point.
Off: Do not operate the humidifier.
Frost control: Automatically maintain the humidity to stay
comfortable but prevent condensation or frost on your
windows
To adjust the humidity set point and other options, see page 14.
On Thermostat and Mobile:
Select Main Menu > System > Humidifier
On Web:
Select System tile > Humidifier
Dehumidifier (if installed)
The Dehumidifier menu enables or disables the dehumidifier, if
installed:
On: Run the dehumidifier to reduce the humidity to the
configured set point.
Off: Do not operate the dehumidifier.
To adjust the dehumidifier set point, see page 12.
On Thermostat and Mobile:
Select Main Menu > System > Dehumidifier

13
On Web:
Select System tile > Dehumidifier
Ventilator/HRV/ERV (if installed)
The Ventilator/HRV/ERV menu configures the operation of a
ventilator, a Heat Recovery Ventilator (HRV) or an Energy
Recovery Ventilator (ERV), if installed:
Occupied minimum runtime: Configure how many
minutes per hour the device will run during occupied
periods, such as when you’re home or asleep.
Unoccupied minimum runtime: Configure how many
minutes per hour the device will run during unoccupied
periods, such as when you’re away.
Ventilation devices are important to maintain indoor air quality
and, depending on where you live, this might be regulated. The
amount of indoor air required to maintain sufficient indoor air
quality depends on how big your house is, how many people
live there, and the capacity of your ventilation device. You
should consult with a local contractor who can guide you on
how often you should be running your ventilation device.
For devices configured as ventilators (i.e. not HRVs or ERVs) you
can enable a feature called “free cooling” on your ecobee3.
When the outdoor temperatures are cooler than indoors and
your system is calling for cool, your ecobee3 will turn on your
ventilator to bring in outdoor air instead of running your air
conditioner. To configure free cooling options, see page 26.
On Thermostat and Mobile:
1. Select Main Menu > System > Ventilator/HRV/ERV
2. Adjust the Occupied Min Run Time and Unoccupied Min
Run Time by selecting each option and swiping left or
right to adjust the values.
3. If supported by your device, enable or disable Free
Cooling.
On Web:
1. Select System tile > Ventilator/HRV/ERV
2. Adjust the Occupied Min Run Time and Unoccupied Min
Run Time by selecting each option and swiping left or
right to adjust the values.
3. If supported by your device, enable or disable Free
Cooling.
Adjusting Sensor Modes
Your ecobee3 supports wireless remote sensors that detect
motion and temperature in different rooms (one was included
with your thermostat). Your ecobee3 also has a built-in motion
sensor. With these sensors, you can optimize the operation of
your thermostat to ensure comfort in the rooms and times that
matter most.
For information about installing new sensors, see the ecobee
Installation Guide, or the documentation included with the
sensor itself.
Smart Home/Away
Smart Home/Away applies all the sensors in your network –
including the sensors built-in your thermostat. It works by
following your schedule unless any sensor in your network is in
conflict with your schedule. In other words, if your ecobee3
senses that you are home during a scheduled Away period, or
away during a scheduled Home period, it will automatically
override your schedule by placing you in Smart Home/Away
mode to maximize comfort (Smart Home) and savings (Smart
Away).
On Thermostat:
1. Select Main Menu > Sensors > Smart Home/Away
2. Touch Enable to have your sensor network and
thermostat detect occupancy. To have your thermostat
strictly follow your programmed schedule, touch Disable.
Follow Me
Follow Me is a feature that applies to a selected group of the
sensors in your network (including the sensor built-in your
thermostat). It works by looking for motion triggered by any of

14
the selected sensors. If motion is detected, the temperature
reading from that sensor will be used by your ecobee3 to
decide when to operate your heating or cooling system. This
ensures that you are comfortable in the rooms that you are
occupying. If more than one sensor detects motion, the
average of these sensors will be used. Your ecobee3 makes
changes gradually when many sensors are detecting motion to
make sure there are no sudden or large changes for your
heating and cooling system to deal with.
When Follow Me is disabled, your ecobee3 will continuously use
the average temperature readings from all the sensors that
you’ve selected as the desired temperature to control your
ecobee3. For example, suppose you have a room in your house
that is far from your thermostat and you want this room to be at
the thermostat's set temperature, regardless if motion is
occurring. In this case, set Follow Me to Disable and only select
this room. Your ecobee3 will now only use the temperature in
this room to decide when to operate your heating or cooling
system.
On Thermostat:
1. Select Main Menu > Sensors > Follow Me
2. Enable or disable the Follow Me feature.
3. If enabled, select which sensors are affected by pressing
on each checkbox.
Adjusting Comfort Settings
You can configure your ecobee3 to fit your schedule and
comfort needs while maximizing your energy savings.
Your ecobee3 organizes your temperature and fan settings into
different Comfort Settings. These settings are used in the
Schedule, Smart Home and Quick Changes menus
By default, your ecobee3 includes three configurable Comfort
Settings:
Away: Settings for when you are not at home.
Home: The normally settings for when you are at home and
awake.
Sleep: Settings for when you are sleeping.
Note: You can create new Comfort Settings (or remove them)
from the Web Portal.
On Thermostat and Mobile:
1. Select Main Menu > Comfort Settings
2. Select the Comfort Setting you want to customize.
3. Adjust the set points for heat and cool, as well as fan
mode as required.
4. Touch Save.
On Web:
1. Select Schedule tile.
2. Select the Comfort Setting you want to customize, or
select New Comfort Setting to add a new one.
3. Adjust the name, set points for heat and cool, as well as
fan mode as required.
4. Select if this Comfort Setting is for when the home is
Occupied or Unoccupied.
5. Select Save. The new Comfort Setting will appear in the
Schedule tile as well as on the thermostat itself.

15
To delete a Comfort Setting:
1. Select Schedule tile.
2. Select the Comfort Setting you want to delete.
3. Select Delete.
4. Confirm by selecting Delete.
Setting Your Weekly Schedule
Your heating and cooling needs change depending on the
time of day, day of the week, as well as when you are home or
away. For example, if there’s no one in the house during the
workday you might want to let the temperature go up in the
summer, to reduce energy used by the air conditioning system,
and down in the winter, to reduce heating energy.
The ecobee3 adapts to how your home and heating and
cooling equipment perform. Intelligent algorithms combine
weather data, your equipment run times and occupancy
schedules to optimize performance and maximize energy
savings. This means you can be comfortable when you are
home and save money when you are not.
On Thermostat and Mobile:
1. Select Main Menu > Schedule
2. Touch the day of the week you want to adjust.
3. Select an existing scheduled activity to edit. You can also
create a new activity by touching +.
4. Select Start time.
5. Swipe to select the new time value. Note: You can only
select time values that are at least 30 min after the
previous activity to 30 min before the next scheduled
activity (i.e. you cannot overlap activity times).
6. Touch Save.
7. If you have added a new activity, you need to select
Comfort Setting to use.
8. Touch Save.
9. Touch the Back arrow to return to the Schedule screen
where you can make additional changes as required.
Hint: You can copy the entire schedule from one day to
another day (for example, if all your week days follow the same
schedule). Display the first day, touch the copy button, select
which days to apply the changes to, and touch Save.
On Web:
To edit an existing activity:
1. Select Schedule tile.
2. Select an existing scheduled activity to edit.
3. Select Start time.
4. Select Save.
To create a new activity:
1. On the Schedule tile, select Add activity.
2. Select the day.
3. Select Next.
4. Select the Comfort Setting to use during the activity.
5. Select Next.
6. Select Start time.
7. Select Save.
To copy the entire schedule from one day to another day (for
example, if all your week days follow the same schedule):
1. On the Schedule tile, select Copy.
2. Select the day to copy.

16
3. Select Next.
4. Select the days that will use the copied schedule (you
can select more than one).
5. Select Save.
Going on Vacation
Your ecobee3's Vacation feature helps you conserve energy
while you are away for extended periods of time. It also ensures
your home is comfortable when you return.
A vacation event has a start date and time, as well as an end
date and time. You can enter any number of vacations, as long
as each has a unique start time.
The Vacation feature overrides your programmed schedule –
you can leave your Schedule settings as-is when you go away
for a special or unscheduled trip.
On Thermostat and Mobile:
1. Select Main Menu > Vacation
2. Touch + to create a new vacation event.
3. Select Vacation schedule.
4. Enter the Departure date and time.
5. Touch the Back arrow.
6. Select Vacation settings.
7. Select Heat or Cool to enable/disable heat and cool
during the vacation event.
8. Configure the set point(s) for heat and/or cool during the
vacation event by selecting Heat set to or Cool set to,
adjusting the temperature, and then pressing Save.
9. Touch the Back arrow.
10. Touch Save.
The vacation event is now set. You can adjust it at any time by
selecting it from the Vacation menu.
To delete a vacation event:
1. Select Main Menu > Vacation
2. Select the vacation you want to delete.
3. Touch Remove .
4. Confirm the deletion by pressing Delete.
On Web:
1. Select Vacation tile.
2. Select New Vacation
3. Enter the depart and return date and times
4. Select Heat and Cool.
5. Enable or disable heat and cool during the period as
required.
6. Select the set points for heat and/or cool.
7. Select Save.
8. Select Fan and set the minimum fan run time per hour, if
different than your normal settings.
9. Select Save.
The vacation event is now set. You can adjust it at any time by
selecting it from the Vacation tile.

17
Caring for your Thermostat
Cleaning
You can clean your ecobee3 screen by spraying water on to a
clean, microfiber cloth. Wipe the surface of the screen with the
dampened cloth.
Note: Never spray any liquids directly onto your ecobee3.
Rebooting
You can reboot your ecobee3 by gently pulling the thermostat
from the back plate. To pull the thermostat off the wall, make
sure you that firmly hold on to the black front of the thermostat.
Ensure that you are not pulling the white trim plate as that is
attached to the wall.
Rebooting will not alter programming or configuration options.
Resetting the Thermostat
At some point during the life of your ecobee3 thermostat you
may want to quickly reconfigure it or restore it to the default
state.
Reset Registration: Deletes your registration settings (i.e.
username and password). Equipment settings and personal
preferences are kept as-is.
Reset Preferences: Resets all your preferences, reminders,
alerts and programming back to the default state.
Reset All: Resets the Smart Si thermostat back to its default
factory settings and removes any registration information.
On Thermostat:
1. Select Main Menu > Settings > Reset
2. Select a reset option:
Reset Registration
Reset Preferences
Reset All
3. Touch Yes to confirm the reset.
Troubleshooting
The About menu shows technical information about your
ecobee3, including:
Thermostat name
Software version
Serial number
Contact information for support
Wi-Fi settings
This information is useful when troubleshooting network issues or
contacting ecobee technical support.
On Thermostat or Mobile:
Select Main Menu > About
On Web:
Select About tile.

18
Reminders & Alerts
The Reminders and Alerts list displays the reminders and alerts
that help you know if you need to attend to your HVAC system
or when to perform periodic maintenance.
NOTE: To use and receive email alerts, this thermostat must be
connected to the Internet via Wi-Fi and the end-user must have
a valid email address.
Viewing Reminders
The Reminders list displays the reminders and alerts that help the
homeowner know when to perform periodic maintenance.
On Thermostat and Mobile:
1. Select Main Menu > Reminders & Alerts > Reminders
2. Select the reminder you want to view.
3. For example, if you receive a Furnace Filter or UV Lamp
Change reminder and you have changed the filter or
lamp, or arranged to have your equipment serviced,
touch Filter/Lamp Changed or Service Scheduled;
otherwise touch the Back arrow.
Hint: If the frequency of the reminder is not correct, touch Edit
when viewing the reminder to adjust the settings as required.
On Web:
1. Select Reminders & Alerts tile.
2. Select Reminders.
Viewing Alerts
Your ecobee3 can generate alerts if the temperature in the
home goes over or under a pre-programmed level. This protects
the home from damage due to freezing and/or excessive heat.
This alert, along with optional technician contact information,
will be displayed on the screen. If the homeowner registers the
thermostat, the alert will be emailed to them and be displayed
on the web portal.
On Thermostat and Mobile:
1. Select Main Menu > Reminders & Alerts > Alerts
2. Select the alert you want to view.
3. Touch OK to return to the Alert list.
Hint: If the alert is not configured correctly, touch Edit when
viewing the alert to adjust the settings as required.
On Web:
1. Select Reminders & Alerts tile.
2. Select Alerts.
Configuring Reminders & Alert Preferences
You can configure how and when your ecobee3 generates
reminders and alerts.
Note: Only the options relevant to your equipment are shown in
the thermostat menus.
On Thermostat and Mobile:
1. Select Main Menu > Reminders & Alerts > Preferences
2. Configure each reminder/alert setting as required.
On Web:
1. Select Reminders & Alerts tile.
2. Select Preferences.
3. Configure each reminder/alert setting as required.
HVAC Maintenance
The HVAC Service (maintenance) reminder generates an alert
telling the homeowner that regularly scheduled maintenance is
required.
This reminder, along with technician contact information, can
be displayed on the screen. If homeowners register their
thermostats, the reminders will be emailed to them and be
displayed in the web portal.
You can set the Last Service date, turn the Reminder On or Off,
and set the Frequency of the maintenance interval in months.

19
Furnace Filter
Generates an alert that indicates it is time to clean or replace
the filter on the furnace, if installed. You can set the Last Filter
Change date, turn the Reminder On or Off, and set the
Frequency of the maintenance interval.
Ventilator Filter (if installed)
Generates an alert that indicates it is time to clean or replace
the filter on the ventilator, if installed. You can set the Last Filter
Change date, turn the Reminder On or Off, and set the
Frequency of the maintenance interval.
UV Lamp
If the HVAC system uses a UV lamp for air purification, your
ecobee3 can generate an alert indicating that it is time to
clean or replace the lamp. You can set the Last Lamp Change
date, turn the Reminder On or Off, and set the Frequency of the
maintenance interval.
Low Temp Alert
Sets the temperature at which the thermostat will generate a
Low Temperature Alert. The range can be:
Enable/Disable: Configures if alert is shown on thermostat.
A temperature range of 35 to 68 °F (1.5 to 20 °C).
High Temp Alert
Sets the temperature at which the thermostat will generate a
High Temperature Alert. The options are:
Enable/Disable: Configures if alert is shown on thermostat.
A temperature range of 60 to 104 °F (15.5 to 40 °C).
Aux Heat Runtime Alert
Sets the amount of time that the Auxiliary heat source, if
installed, is can run continuously before an alert is generated.
The options are:
Disabled: No alert will be generated.
A time from 30 min to 8 hrs
Aux Outdoor Temp Alert
If you have a heat pump with an auxiliary heat configuration,
you can configure your ecobee3 to generate an alert if the
auxiliary heat is called for when the outdoor temperature
exceeds this programmed set point. The programmed set point
can be between 32 to 80 °F (0 to 26.5 °C)
This feature requires an Internet connection to function properly.
Low Humidity Alert
Sets the percentage of relative indoor humidity at which the
ecobee3 will generate a Low Humidity Alert. The options are:
Off: No alert will be generated.
A humidity range of 5% to 95%.
High Humidity Alert
Sets the percentage of relative indoor humidity at which the
ecobee3 will generate a High Humidity Alert. The options are:
Off: No alert will be generated.
A humidity range of 5% to 95%.
Display Alerts on Thermostat
Select Disable if you do not want any of the alerts to be
displayed on the ecobee3 thermostat screen. Alerts will
continue to be displayed on the web portal and sent via email.
Enable Heating/Cooling Alerts
Select Disable to disable alerts for heat/cool error conditions. If
disabled, alerts indicating that the system failed to heat or cool
will not appear in the screen, web portal, or emails.

20
Lost Communication With Sensor/Low Battery Alerts
Select Disable to disable alerts when sensor battery is low or
communication with the sensor is lost.
Customizing Your Thermostat
You can customize the operation and display of your ecobee3
to suit your personal preferences.
Note: System settings are only configurable from the thermostat
itself, not the Mobile App. Some settings, where indicated, are
also configurable from the Web Portal.
Date & Time
You can configure the time to use a 12 or 24-hour format.
Note: The current date and time are programmed during initial
setup and automatically from the Internet. If you need to adjust
the data and time, log in to your personalized web portal.
On Thermostat:
To adjust the time format:
1. Select Main Menu > Settings > Date & time
2. Select Time format.
3. Touch 12 hr or 24 hr.
On Web:
1. Select Settings tile.
2. Select Time.
3. Select 12 Hour or 25 Hour.
Temperature Display
You can configure the ecobee3 to display the temperature
values in Fahrenheit or Celsius.
On Thermostat:
1. Select Main Menu > Settings > Preferences
2. Select Temperature display.
3. Touch °F or °C.
On Web:
1. Select Settings tile.
2. Select Preferences.
3. Select Temperature Display.
4. Select Fahrenheit or Celsius.