Honeywell Home THX321WF2001W User manual

T10 & T10+ Pro Smart thermostat with RedLINK® 3.0
User Guide
THX321WFS3001W (T10+ with Sensor included)
THX321WF3003W (T10+ No sensor)
THX321WFS2001W (T10 with Sensor included)
THX321WF2003W (T10 No sensor)
THX321WF2001W (Number on back of T10 thermostat)
C7189R3002-2 (2 pack wireless
temperature/humidity/motion sensor)
C7189R2002-2 (2 pack wireless
temperature/humidity/motion sensor)
C7089R3013 (wireless outdoor sensor for T10+ models)
Note: T10+ models available in YTHM1004R kits
with EIM and accessories
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Welcome
This user guide is designed to help you get acquanted with your new T10 & T10+ Pro Smart thermostat with RedLINK 3.0.
Check out the table of contents on page 2 to browse by topic.
Need help? Get in touch.
WEB: honeywellhome.com
PHONE: 18006333991
SOCIAL: Twitter: @HoneywellHome, Facebook: Honeywell Home

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TABLE OF CONTENTS
Thermostat Features..........................................................................page 3
Thermostat overview..........................................................................page 4
Resideo App overview ........................................................................page 5
Basic thermostat operation
Main thermostat menu options ....................................................page 6
Using Priority for sensors ................................................................page 6
Selecting system mode.....................................................................page 8
Auto changeover mode.....................................................................page 9
Emergency heat mode ......................................................................page 9
Setting the fan................................................................................... page 10
Setting the Time/Date.................................................................... page 11
WiFi settings and connectivity
Connecting to a WiFi network ..................................................... page 12
Disconnecting and reconnecting to a WiFi network.......... page 13
Turning thermostat WiFi on and off ........................................ page 13
Apple® HomeKit™ Setup................................................................. page 13
Scheduling options
Scheduling on thermostat............................................................ page 14
Scheduling on App....................................................................page 1516
Geofence and Smart scheduling ............................................... page 16
Schedule override on device........................................................ page 17
Setting Preferences (language, time/date, F/C, etc.) ....... page 18
Cleaning the display ....................................................................... page 19
Security settings ............................................................................... page 19
IAQ Control
Humidification settings................................................................. page 20
Dehumidification settings............................................................ page 21
Ventilation settings ......................................................................... page 22
Advanced features
Adaptive Intelligent Recovery...................................................... page 23
Compressor protection .................................................................. page 23
P + I control ......................................................................................... page 23
Alerts and notifications...........................................................page 2425
Maintenance reminders ................................................................ page 26
Identifying a wireless sensor ....................................................... page 27
Replace sensor batteries............................................................... page 28
Frequently Asked Questions (FAQs) ..................................page 2930
Troubleshooting................................................................................ page 31
Regulatory information.................................................................. page 32
Specifications .................................................................................... page 32
Warranty information ..................................................................... page 33

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Thermostat Features
Flexible scheduling: You can choose to use location-based temperature control (geofence technology), program a set schedule or
use a combination of both to make sure your home is always comfortable.
• Location-based temperature control: Using geofence technology, the T10 & T10+ Pro Smart thermostat will automatically
use your smartphone’s location, which can save you energy when you leave and make your home comfortable by the time
you return.
• Smart Scheduling: Adds a Sleep period to location-based temperature control.
• Time-based scheduling: You can program a schedule where every day is different, a schedule where weekdays and
weekends are different or a schedule where every day is the same. There are four adjustable periods per day: Wake, Away,
Home, and Sleep.
• No schedule: You can also choose not to set a schedule and adjust the thermostat manually.
• You can also choose not to set a schedule and adjust the thermostat manually
• Schedule Using Sensors
• Up to 20 wireless indoor temperature/humidity/motion sensors per thermostat.
• Sensor Priority for each program period or when used manually.
Tip: The Resideo app can be used to manage multiple thermostat and multiple users in a household.
!Smart Alerts: The T10 & T10+ Pro Smart thermostat will send alerts for things like extreme indoor temperatures and
reminders for things like filter changes.
Auto change from heat to cool: When Auto mode is selected, the T10 & T10+ Pro Smart thermostat can automatically
determine whether your home needs heating or cooling to reach the desired temperature.
Adaptive Intelligent Recovery: The T10 & T10+ Pro Smart thermostat learns your heating and cooling cycle times to make
sure the system delivers the temperature you want, when you want it.

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Getting the most from the T10 & T10+ PRO Smart Thermostat
Prioritize Rooms
Prioritize a specific room or multiple rooms, or let comfort follow your move using built-in motion detection.
Control on the Go
Adjust your thermostat from anywhere using your tablet or smartphone.
Save Energy
With geofencing, you can save money on the most expensive part of your energy bill while you’re away.
Simple Installation
The thermostat automatically programs itself. Just answer a few simple questions and you’ll be up and running in no time.
WholeHome Range
With a 200-foot range, 20 sensors with temperature, humidity, and occupancy detection can connect to your thermostat from
throughout your home.
Know Your Home Is Safe
Get customizable alerts on your mobile device when the basement is so cold a pipe could burst, or if the baby’s room is getting
too hot.
Using Your Thermostat
The screen will wake up by pressing the center area of the displayed temperature.
74
2
18%
Indoor Temperature
Displays the current
indoor temperature.
Adjust Temperature
Touch the up and
down arrows to
set your desired
temperature.
Current Priority
Displays the type of
priority and number
of rooms being
prioritized.
Menu
Contains features
such as mode, fan,
schedule, priority,
and other thermostat
settings.
Indoor Humidity
Displays the current
indoor humidity.
Desired
Temperature
Displays the desired
temperature.

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Using the Resideo App
Cha
nge System
Mo
de
Ch
ange Fan
Se
tting
Set Desired
Temperature
Set Sensor Priority
Change Schedule
Type
Access Menu
Options
Available options
shown in screens
below
Home Screen
The Resideo App is regularly enhanced and may change.
Menu Options

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Main Menu on Thermostat
From Home Screen, press the menu icon at bottom of the
display (3 horizontal lines). If this is not shown at home
screen, touch screen to wake display first.
Main Menu options
System mode (Available modes vary depending on how the
thermostat was configured)
• Heat
• Off
• Cool
• Auto – Operation on page 9.
• Em Heat – Operation on page 9.
Fan (Fan setting not available for all system types)
• Auto (Fan only runs with a call for heat or cool, or if set to
run with Hum, Dehum, or Vent call)
• On (fan runs continous)
• Circulate (fan runs randomly approx. 33% of the time)
Priority
If wireless indoor temperature/humidity/motion sensors are
used, select which sensors are used for temperature control.
You can choose active sensor (ones detecting motion) or
manually select which sensors to use.
Schedule
• Create new schedule (Set a time-based schedule)
• Disable schedule
• Reset to default Schedule
NOTE: To enable geofencing, use the Resideo app.
Management:
Devices & Sensors
• View the temperature and humidity reading from
individual sensors
• Identify a wireless indoor sensor
• Add a new wireless indoor sensor
• Remove a wireless indoor sensor
Thermostat information
• Mac Address
• IP Address
• Date Code
• Model Number
• Build Date
• Collection Version
• WiFi Bootloader Version
• WiFi Application Version
• RedLINK Application Version
Equipment Status
• System mode
• Heat stages (on or off)
• Cool stages (on or off)
• Fan on or off
• IAQ (Hum, Dehum, or Vent) on or off
Dealer Information
• Model number
• Date code
• Dealer company name and contact information if
provided by installer.
Configuration:
• WiFi
• Connect App
• Connect HomeKit
• Security
• Preferences
• Installer Options
Scroll down to see more options

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Selected Rooms
Rooms you manually select create an average
temperature in your home.
Unselected Room
Will not contribute to the average temperature.
Selected Room
Will contribute to the average temperature.
72 72
72 72
72 72
72 72
ProSeries
ProSeries
Active Rooms
Rooms with detected motion are automatically
selected to create an average temperature in
your home
.
Room without Activit
y
No motion is detected. Will not contribute to
the average temperature.
Room with Activit
y
Motion is detected. Will contribute to the
average temperature.

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Selecting system mode
Touch homescreen to wake the thermostat.
Touch the menu icon and then touch “Select Mode.”
• Heat: Controls the heating system.
• Cool: Controls the cooling system.
• Off: Turns the heating and cooling systems off.
• Auto: When enabled, the thermostat will automatically
use heating or cooling to reach the desired temperature.
Operation on page 9.
• Em Heat: Controls auxiliary or emergency heat; only
available on systems with a heat pump. Operation on
page 9.
Notes:
• All available modes may not be shown for some
applications. Scroll down to see more mode options (if
available).
• Auto mode may not appear on the thermostat screen or
in the app depending on your equipment, and how your
thermostat is configured.
• When Auto is selected, “Heat to” and “Cool to” will both
be shown from the “active” home screen.
• Em Heat is only available for heat pump systems. The
thermostat must also be configured to control a heat
pump and an auxiliary/emergency heat stage.
• When Auto is selected, “Heat to” and “Cool to” will both
be shown from the “active” home screen.

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Auto Changeover operation
Auto changeover is available if the thermostat is configured for at least 1 heat stage and 1 cool stage and the installer enabled
auto changeover.
When configured this way, you can select “Auto” as one of the options under “System mode”.
When in auto mode, the customer can always set the heat and cool setpoint to the same temperature, regardless of the
differential setting although most customer prefer to have a cool setpoint that is at least 3 degrees above the heat setpoint.
When configured for 0 differential by the installer, we enforce a 1.5°F differential behind the scenes to ensure the heat doesn’t
come on after cooling shuts off or vice-versa.
The differential is the minimum number of degrees the temperature needs to rise or fall before switching from heat to cool while
in auto changeover mode. Example: With a 3 degree differential, If heat and cool were both set for 70, and heat had been used
last, the temperature would need to rise at least 3 degrees above the heat setpoint before the thermostat would turn on cooling.
Then it would cycle cooling on and off to maintain setpoint and the temp would need to drop at least 3 degrees below the cool
setpoint before heat could come on.
If the AC is used for dehumidification then we enforce an additional temp drop below the overcooling amount, prior to switching
back to heat.
Em Heat mode
Emergency heat runs when you manually switch the thermostat to the em heat mode. When the thermostat is in emergency heat
mode, the heat pump is locked out. When the thermostat is set to em heat mode, the heat pump is locked out and the backup
heat is used to maintain the heat setpoint.
Emergency heat mode is only available when the thermostat was configured for a heat pump with Backup heat by the installer.
From home screen touch the menu icon and then “system Mode”. You can set the thermostat to heat, off, cool, emergency heat,
or auto (auto only available if configured by installer).

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Setting the Fan
Note: Fan setting not available for all system types.
1. Touch any part of the display to wake the thermostat.
2. Touch the MENU icon at the bottom of the screen.
3. Touch Fan
Choose on, auto, or circulate.
Touch arrow in upper left to return to previous screen.
Auto setting only runs the fan with the heating or cooling
system.*
On setting runs the fan continuously.
Circ setting runs the fan approx 33% of the time to ensure air
circulation.
* The fan may also run with the humidifier, humidifier, or
ventilator depending on how the thermostat was configured.
Scheduling the Fan
You can set the fan to on, auto, or circ for each program when
using time-based scheduling or geofencing.