Lutron Electronics TH8321WF1043 User manual

Wireless Thermostat
User Guide
TH8321WF1043
(L-HWLV2-WIFI)
Read before installing

33-00066EFS—03 1
Once connected to WiFi, registered to Total Connect Comfort,
and setup with your Lutron system, you can control your
thermostat from anywhere through your smartphone with the
Lutron app, Lutron Connect app for RadioRA 2 and Homeworks
QS, or Total Connect Comfort app.
Features of your wireless thermostat
With your new thermostat, you can:
• Connect to the Internet to monitor and control your heating/cooling system.
• View and change your heating/cooling system settings.
• View and set temperature and schedules.
• Receive alerts via email and get automatic upgrades.
• View outdoor temperature and humidity.
• Download the free Total Connect Comfort app.
• Use with Lutron’s Caséta®Wireless, RA2 Select, RadioRA®2, and HomeWorks®
systems.
Download on
iTunes
GET IT ON
Technical Assistance | 24 hours a day, 7 days a week | www.lutron.com
U.S.A. / Canada: 1.800.523.9466 | Mexico: +1.888.235.2910
Other Countries: +1.610.282.3800
Apple and iTunes are trademarks of Apple Inc., registered in the U.S. and other countries.

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Programming and Operation
Quick reference .................................................................................3
Connecting to WiFi........................................................................5
Registering your thermostat online..........................................8
Setup with a Lutron system..................................................... 11
Setting the time/date ................................................................. 12
Setting the fan............................................................................... 13
Setting system mode.................................................................. 14
Preset energy-saving schedules............................................ 15
Adjusting program schedules................................................. 16
Schedule overrides....................................................................... 18
Menu Options
Viewing equipment status........................................................ 20
Setting vacation, holiday, and events.................................. 21
Setting holiday/event schedules:
commercial use............................................................................. 22
Setting humidification and
dehumidification........................................................................... 27
Setting ventilation........................................................................ 30
Setting preferences..................................................................... 32
Cleaning the thermostat screen............................................ 33
Security settings ........................................................................... 34
Viewing dealer information...................................................... 35
Advanced features........................................................................ 36
Disconnecting your WiFi network....................................... 37
Reconnecting your WiFi network ........................................ 38
Unregistering your thermostat............................................... 39
Checking signal strength.......................................................... 40
Unsuccessful connection.......................................................... 41
Connecting to a hidden WiFi network............................... 42
Appendices
Installer options............................................................................. 44
Troubleshooting............................................................................ 45
Regulatory information.............................................................. 47
Table of contents

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Quick reference: residential use
HOME. Touch to display Home screen.
FAN. Select fan mode.
SYSTEM. Select system mode (Heat/Cool).
MENU. Touch to display options. Start here to
set a program schedule.
Current status. Shows system mode (heat/
cool), outdoor temperature and humidity (with
optional outdoor sensor).
Current schedule. Touch an arrow to change
temperature setting and select a Temporary or
Permanent Hold.
Indoor conditions. Shows indoor temperature
and humidity.
Current time. Touch to set the current time/
date.
Alert Light. On when alert message is
active or system is set to EmHeat.
The screen lights when you
press any button. It stays lit for
45 seconds after you complete
changes. Depending on how
your thermostat was installed,
the screen light may always be
on.

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Quick reference: commercial use
HOME. Touch to display Home screen.
FAN. Select fan mode.
SYSTEM. Select system mode (Heat/Cool).
MENU. Touch to display options. Start here to set
a program schedule.
Current status. Shows system mode (heat/cool),
outdoor temperature and humidity (with optional
outdoor sensor).
Override. Touch to override program schedule.
Current schedule. Touch an arrow to change
temperature setting and set a temporary hold.
Current program status.
Indoor conditions. Shows indoor temperature
and humidity.
Current time. Touch to set the current time/date.
Alert Light. On when alert message is
active or system is set to EmHeat.
The screen lights when you
press any button. It stays lit for
45 seconds after you complete
changes. Depending on how
your thermostat was installed,
the screen light may always
be on.

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Connecting to WiFi
1 Connect to the WiFi network.
1.1 Touch MENU
1.2 Select Wi-Fi Setup.
The thermostat will scan for
available WiFi networks.
1.3 The screen displays “Finding
Networks Please Wait” after
which it displays a list of all WiFi
networks it can find.
1.4 Find the name of the network
you want to use by pressing the
arrow buttons to scroll up/down
or left/right. Press the WiFi
network name, then press Select.
NOTE: If the WiFi network name is
hidden, see “Connecting to a hidden WiFi network” on page 42.
M35347
Select Wi-Fi Network
Your Network
M35349
Finding Networks
Please Wait
DoaIol Inrol Madorl
Wi-Fi Setup
Installer Options
M35352

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1.5 When prompted, press the
screen to edit the password (if
necessary).
1.6 Enter the password.
Press the sor t buttons to
change the letter or number.
Press the button to move to
the next character, or the
button to move to the previous
character.
Use the sor t buttons at the
bottom to change letter case.
Press Done when complete.
Connecting to WiFi
M35346
Delete Space
AC
M35350
Enter Password
Press Here to Edit

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1.7 The screen will let you know
when the connection is
successful. Press Done when the
connection is successful.
If the connection is not
successful, the screen
will explain why not. See
“Unsuccessful connection” on
page 41. Follow instructions
on the screen to try again.
NOTE: Press the tfor more
information about an unsuccessful connection.
1.8 If you want remote access to the thermostat, you must set up an
account at mytotalconnectcomfort.com and add the thermostat to
the account.
NOTE: You will need the thermostat MAC and CRC IDs to add the
thermostat. They are on the screen under Menu, WiFi Setup and on the
Thermostat ID Card packed with the thermostat.
To register your thermostat, follow the instructions beginning on page 8.
Connecting to WiFi
M35351
Connection
Successful
M35360

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M31570
M31570
To view and set your WiFi thermostat
remotely, you must have a Total Connect
Comfort account. Use the following
steps.
1 Open the Total Connect Comfort web
site.
Go to mytotalconnectcomfort.com
Registering your thermostat online

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Registering your thermostat online
2 Login or create an account.
If you have an account,
click Login
– or –
click Create An Account
2a Follow the instructions on the
screen.
2b Check your email for an activation
message from My Total Connect
Comfort. This may take several
minutes.
Note: If you do not receive a response,
check your junk mailbox or use an
alternate e-mail address.
2c Follow activation instructions in
the email.
2d Log in.

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Registering your thermostat online
3 Register your WiFi thermostat.
After you are logged in to your
Total Connect Comfort account,
register your thermostat.
3a Follow the instructions on
the screen. After adding your
thermostat location, you must
enter the thermostat’s unique
identifiers:
• MAC ID
• MAC CRC
Note: These IDs are listed on the
Register Online screen or on the
Thermostat ID Card included in the
thermostat package. The IDs are not
case sensitive.
© 2018 Resideo Technologies, Inc. All rights reser ved. The Honeywell
Home logo is used under license from Honeywell International Inc.
69-2723EFS—03 M.S. Rev. 12-18
Printed in U.S.A.
Resideo Inc., 1985 Douglas Drive North,
Golden Valley, MN 55422
69-2723EFS-03
Thermostat ID Card
Use the MAC ID and CRC ID to register
this product at mytotalconnectcomfort.com
Carte d’identification de thermostat
Utilisez l’identification MAC et l’identification CRC pour enregistrer
ce produit à mytotalconnectcomfort.com
Tarjeta de identificación del termostato
Utilice la identificación MAC y la identificación CRC para inscribir este
producto en mytotalconnectcomfort.com
ww
w
.r
es
i
deo
.
com
MAC ID MAC CRC

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Setup with a Lutron system
When the thermostat is
successfully registered, the Total
Connect Comfort registration
screen will display a SUCCESS
message.
You can now control your
thermostat from anywhere
through your laptop, tablet, or
smartphone using the Total
Connect Comfort app or website.
The thermostat is now ready to be
added to a Lutron Caséta®Wireless,
RA2 Select, RadioRA®2, or HomeWorks®
system. Refer to System Setup
instructions, the Lutron app, or the
Lutron Connect app for RadioRA 2 and
HomeWorks QS for further installation
details.

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Setting the time/date
1 Touch the current time. The screen
displays Select Option.
2 Touch Time or Date, then touch Select.
3 Touch sor t until the proper time/
date is displayed.
4 Touch Done to save or Cancel to ignore
changes.
5 Touch Home to redisplay the Home
screen.
NOTE: When registered to Total
Connect Comfort, the thermostat
automatically sets the time and adjusts
for Daylight Saving Time.
MCR34092
MCR34155
Select Option
Time Date
MCR34094
Please Set Time
6:30 PM

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Setting the fan
1 Touch FAN to display fan settings.
2 Touch On, Auto, Circ, or Follow Schedule.
3 Touch Done to save and exit.
On: Fan is always on.
Auto: Fan runs only when the heating
or cooling system is on.
Circ: Fan runs randomly about 35%
of the time (residential use only).
Follow Schedule: Fan controlled by
program (see pages 15 – 19 ).
NOTE: In commercial use,
touch Auto or On to temporarily
override the programmed fan
schedule.
MCR34096
MCR34097
On Auto Circ

14 33-00066EFS—03
Setting system mode
1 Touch SYSTEM to display system
settings.
2 Touch desired option:
Heat: Controls only the heating
system.
Cool: Controls only the cooling
system.
Off: Heating/cooling systems are
off.
Auto: Selects heating or cooling
depending on the indoor
temperature.
Em Heat (heat pumps with aux.
heat): Controls auxiliary/emergency
heat. Compressor is locked out.
3 Touch Done to save and exit.
NOTE: The Auto and Em
Heat system settings may not
appear, depending on how your
thermostat was installed.
MCR34099
Heat Cool Auto
Off
MCR34098

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Preset energy-saving schedules
This thermostat uses default Energy Saver settings that can reduce your heating/
cooling expenses. To customize settings, see next page.
Wake 6:00 am 70 °F (21.1 °C) 78 °F (25.5 °C) 70 °F (21.1 °C) 78 °F (25.5 °C)
Leave 8:00 am 62 °F (16.6 °C) 85 °F (29.4 °C) 62 °F (16.6 °C) 85 °F (29.4 °C)
Return 6:00 pm 70 °F (21.1 °C) 78 °F (25.5 °C) 70 °F (21.1 °C) 78 °F (25.5 °C)
Sleep 10:00 pm 62 °F (16.6 °C) 82 °F (27.7 °C) 62 °F (16.6 °C) 82 °F (27.7 °C)
Cool
(MonFri)Start time
Heat
(MonFri)Period
Heat
(SatSun)
Cool
(SatSun)
Residential Use
Occupied 1 8:00 am 70 °F (21.1 °C) 75 °F (23.8 °C) On
Unoccupied 1 10:00 pm 55 °F (12.7°C) 85 °F (29.4 °C) Auto
Occupied 2* 12:00 am 70 °F (21.1 °C) 75 °F (23.8 °C) On
Unoccupied 2* 12:00 am 55 °F (12.7°C) 85 °F (29.4 °C) Auto
CoolStart time HeatPeriod Fan
Commercial Use
* Period 2 is cancelled by default. If you activate it, the values shown above are
default settings.

16 33-00066EFS—03
Adjusting program schedules
1 Touch MENU.
2 Select Edit Schedule to display Use
Scheduling Assistant?
• Touch Yes to create a schedule by
answering simple questions.
• Touch No to manually create a
program schedule. See page
17.
MCR34100
MCR34101
Edit Schedule
View Schedule
MCR34102
Use Scheduling
Assistant?

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Adjusting program schedules (continued)
3 Select the days to schedule, touch Next.
4 Touch sor t to set your Wake time for
selected day(s).
5 Touch sor t to set Heat and Cool
temperatures for the Wake period.
6 Touch other time periods (Leave, Return,
Sleep) to set time and temperatures for
each.
7 Touch Done to save and exit (Touch Cancel
to exit without saving changes).
NOTE: Touch Cancel Period to eliminate
any unwanted time period.
NOTE: Touch Fan Setting to customize fan
settings for any time period.
MCR34151
Select the days
to schedule
MCR34152
Set Wake
time & temperature

18 33-00066EFS—03
Overriding schedules: residential use
1 Touch sor t to adjust the
temperature (right side of screen)
and the Hold Until time (left side).
The schedule will resume when the
Hold Until time expires.
2 Select Permanent Hold to keep the same
temperature until you change it or
resume the program schedule.
Touch Cancel Hold at any time to resume
the program schedule.
MCR34103
Temporary Hold
Permanent Hold

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Overriding schedules: commercial use
Touch sor tto adjust the temperature.
It will be maintained until the hold time
you set.
• To change the hold time, touch the
Hold Until arrow buttons. This time
can be adjusted up to the maximum
time set by the installer.
• Touch Override to use a pre-set
occupied temperature if a person
uses the room during an unoccupied
period. The new temperature will be
maintained for 1 hour and can be
adjusted up to the maximum time set
by the installer.
The programmed schedule will resume
when the override timer expires. Touch
Cancel Hold at any time to resume the
program schedule.
MCR34169
MCR34106