Honeywell Home Wi-Fi Series User manual

User Guide
Smart Programmable
Thermostat
RET97E5D Wi-Fi Series
HOLD
M37771

69-2803ES—05 ii
In the box you will find
• Thermostat
• Wallplate (attached to
thermostat)
• Screws and anchors
• Quick Start Guide
• Thermostat ID Card
• Wire labels
• User Guide
• Quick Reference Card

Welcome
Congratulations on your purchase of a
smart programmable thermostat. When
registered to 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.
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 with common 24 volt systems such as forced air,
hydronic, heat pump, oil, gas, and electric. It will not work with millivolt systems,
such as a gas fireplace, or with 120/240 volt systems such as baseboard
electric heat.
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 honeywellhome.com/wifi-thermostat or call 18557335465 for assistance
before returning the thermostat to the store.

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About your new thermostat
Controls and Home screen
quick reference .................................................. 5
Preset energy-saving schedules................. 6
Installation
Installing your thermostat............................. 8
Connecting to your WiFi network...........26
Registering your thermostat online ........31
Operation
Setting the clock..............................................36
Setting the fan .................................................37
Selecting system mode ................................38
Adjusting program schedules....................39
Overriding schedules temporarily............40
Overriding schedules permanently.........41
Unregistering thermostat............................42
Disconnecting WiFi......................................43
Special features...............................................45
Setting functions and options...................48
Appendices
Frequently asked questions .......................55
Troubleshooting ..............................................61
Limited warranty.............................................67
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

5 69-2803ES—05
Controls and 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.
The screen lights when you press any button. It stays lit for 8 seconds after you
complete changes.
M31586
HOLD
Set up messages
describe steps in the
WiFi set up process
WiFi status
Set clock, day,
or schedule
Select fan
settings
Additional
settings
Temperature
adjustment buttons
Permanent override
button
Select system
mode

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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. Savings may
vary depending on geographic region and usage. To change the settings, see pages
3941.
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 °

7 69-2803ES—05
Setting up your thermostat
Setting up your WiFi programmable thermostat is easy. It is preprogrammed and
ready to go as soon as it is installed and registered.
Install your thermostat.
Connect your home WiFi network.
Register online for remote access.
Before you begin, you may want to watch a brief installation video.
Use the QR Code®at the front of this guide, or go to
honeywellhome.com/support
2
3
1

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Installing your thermostat
You might need the following tools to install this thermostat:
• No. 2 Phillips screwdriver
• Small pocket screwdriver
• Pencil
• Level (optional)
• Drill and bits (3/16” for
drywall,
7/32” for plaster) (optional)
• Hammer (optional)
• Electrical tape (optional)
1 Switch OFF power to your
heating/cooling system.
Important! To protect your
equipment, switch OFF the power to
your heating/cooling system at the
breaker box or the system switch.
or
M31535
Circuit breaker
box
Heating/cooling
system power
switch