Honeywell RTH8580WF User manual

User Guide
Wi-Fi Touchscreen
Programmable Thermostat
Model RTH8580WF

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In the box you will find
• Thermostat
• Wallplate (attached to thermostat)
• Screws and anchors
• Coin cell battery (inside the back
of the thermostat)
• Quick Start Guide
• Thermostat ID Card
• Wire labels
• User Guide

Welcome
Congratulations on your purchase of a
Honeywell Wi-Fi touchscreen programmable
thermostat. When registered to Honeywell’s
Total Connect Comfort Solutions, you can
remotely monitor and control the heating and
cooling system in your home or business— you
can stay connected to your comfort system
wherever you go.
Honeywell’s Total Connect Comfort is the
perfect solution if you travel frequently, own
a vacation home, a business or manage an
Investment property or if you are simply looking
for peace of mind.

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This thermostat works on 24 volt systems. It will NOT work on 120/240 volt systems.
This thermostat contains a Lithium battery which may contain Perchlorate material.
Perchlorate Material—special handling may apply.
See www.dtsc.ca.gov/hazardouswaste/perchlorate
MERCURY NOTICE: Do not place your old thermostat in the trash if it contains
mercury in a sealed tube. Contact the Thermostat Recycling Corporation at www.
thermostat-recycle.org or 1-800-238-8192 for information on how and where to
properly and safely dispose of your old thermostat.
NOTICE: To avoid possible compressor damage, do not run air conditioner if the
outside temperature drops below 50°F (10°C).
Need help?
Visit wifithermostat.com or call 1-855-733-5465 for assistance before returning the
thermostat to the store.

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About your new thermostat
Home screen quick reference .....................5
Message center messages.........................6
Preset energy-saving schedules.................8
Installation
Installing your thermostat..........................10
Connecting to your Wi-Fi network.............27
Registering your thermostat online ........... 32
Operation
Setting the clock........................................37
Setting the fan...........................................38
Selecting system mode.............................39
Adjusting program schedules....................40
Overriding schedules temporarily .............41
Overriding schedules permanently ...........42
Setting vacation hold.................................43
Setting filter reminder intervals .................44
Cleaning the screen..................................45
Unregistering thermostat...........................46
Disconnecting Wi-Fi ..................................47
Special features ........................................48
Setting functions and options....................51
Appendices
Frequently asked questions ...................... 59
Troubleshooting.........................................62
Limited warranty........................................68
Table of contents

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Features of your Wi-Fi 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
Your new thermostat provides:
• Smart Response Technology
• Compressor protection
• Heat/cool auto changeover

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Home screen quick reference
Once your Wi-Fi thermostat is installed, it will display the home screen. Portions of this
display will change depending on how you are viewing it. To change settings, simply press
the appropriate area lightly with your finger.
Unless you change the lighting function, the screen is always lit at low intensity. When you
touch the screen, the screen brightens.
Set clock
Message center
Select fan mode
Select system mode
Program schedules
Override schedule
Wi-Fi status
Schedule is on (does not
display when off)
Additional settings
Lock screen for cleaning
M31565
MORE
Inside

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Message center messages
The Message Center at the top of the screen communicates Wi-Fi connection and
registration status. It also displays the MAC ID and MAC CRC for registering the
thermostat at mytotalconnectcomfort.com
Displayed before you begin Wi-Fi setup.
Displayed while connecting to the Wi-Fi network.
Displayed after connecting to the Wi-Fi network.
[Wi-Fi network name] Displayed when connected to the Wi-Fi network.
Displayed when Wi-Fi connection is complete.
Displayed when the thermostat fails to establish a connection
to the Wi-Fi network.
Displayed when the thermostat is connected to the Wi-Fi
network but not registered at mytotalconnectcomfort.com
Displays the thermostat’s MAC ID and MAC CRC for
registering at mytotalconnectcomfort.com
[Found on your ID card]
[Found on your ID card]

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Message center messages
Displayed when the thermostat is registered at
mytotalconnectcomfort.com
Displayed when the thermostat is removed from your Total
Connect Comfort account.
Wi-Fi signal strength. Displayed when the thermostat
is connected to the Wi-Fi network and registered at
mytotalconnectcomfort.com
Displayed if there is no Wi-Fi signal.

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Preset energy-saving schedules
This thermostat is pre-set with energy-saving program settings for four time periods.
Using the default settings can reduce your heating/cooling expenses by as much as 33%
if used as directed. Savings may vary depending on geographic region and usage.
Default Heat Settings Default Cool Settings
WAKE
6:00 am 70 °78 °
LEAVE
8:00 am 62 °85 °
RETURN
6:00 pm 70 °78 °
SLEEP
10:00 pm 62 °82 °
To change the settings, see pages 40–43.