Lennox S40 Installer Quick Start Manual

Lennox ® S40 Smart Thermostat Installer Quick Start Guide
508295-01 October 2022
Running Wires and Installing Sub-base
Step 1
A. Use sub-base as a template to mark the desired mounting hole locations on the wall. Drill holes and use provided
wall anchors if needed.
B. Pull about three inches (75mm) of thermostat wire
through the opening and remove the outer thermostat
wire jacket.
IMPORTANT: Seal wire hole in wall to prevent
cold or hot air from affecting the internal
temperature sensor of the thermostat.
WARNING
Improper installation, adjustment, alteration,
service or maintenance can cause property
damage, personal injury or loss of life.
Installation and service must be performed by
a licensed professional HVAC installer
(or equivalent) or a service agency.
Attaching Thermostat to
Step 3
Sub-base
A. Hold the thermostat by the edges, line it up with the
sub-base (horizontal position) and move the
thermostat toward the sub-base.
B. Center the cavity on the back of the display over the
sub-base.
C. Gently press on the edges of the thermostat until
you hear the mounting snaps engage. Be careful
not to apply force directly on the glass.
D. Once the thermostat is connected, it may take up
to 45 seconds for it to power up.
NOTE: If the thermostat is removed from the sub-base,
the thermostat will shut down and will not be
able to communicate with the system.
NOTE: Do not remove the label covering the
thermostat screen until after power is applied
to the system.
Step 4
Commissioning using the
Lennox S40 Smart Thermostat
®
Shows welcome screen. Error
will show if the thermostat is not
Welcome
connected properly. Select
Language.
Select
Select continue setup process
method
through the thermostat.
to setup
IMPORTANT
Dealer
Enter dealer ID number. If not
Info
available, enter phone number
associated with the dealer
account. This will enable ability
to do advanced diagnostics and
remote sharing, if permitted by
homeowner.
General Set time, date, language and
temperature (Fahrenheit or Celsius).
Information
Automatically detects communicating
equipment and equipment interface module
Equipment (EIM) if present. Non-Communicating
equipment is added in this screen. Smart
Found
Zoning may appear after this screen if
installed along with airflow per zone screen.
Specify reminder types and reminder
frequency (ex: change filter every 3
Reminders
months).
NOTE: Installer, please share the homeowner quick start guide with homeowner.
Install sub-base with arrow
Drill hole and run
wiring
Thermostat Sub-base
Mounting Snaps
(Front View)
Thermostat
(Rear View)
Commisssioning using the Lennox
Technician App
1. Thermostat will show welcome screen. Error will show if the
thermostat is not connected properly. Select your desired
language.
2. Select Continue setup process through the Technician
App to use the Lennox Smart Technician App.
®
3. The next screen is the QR codes for both IOS and Android
If you have not already downloaded the app, here is an
opportunity to do so now.
4. Start the Technican app on your mobile device. The first
screen to appear is the Welcome screen. Here you willl
select the desired language for the Lennox
®
Technician App.
5. Select Configure new system.
6. Connect with Thermostat. Make sure your mobile device's
bluetooth is enabled.
7. Return to the thermostat and select Start. The thermostat
will now display an ID number.
8. Return to the Lennox Smart Technician App and look for
®
the thermostat's ID on the app screen. It will be the same
as displayed on the thermostat's screen.
9. Select the thermostat's ID listed on the app.
10. A screen will indicate it is connecting to the thermostat. If
connection is successful the next screen will indicate so.
IMPORTANT:
11. Enter dealer ID number. If not available,
enter phone number associated with the dealer account.
This will enable ability to do advanced diagnostics and
remote sharing if permitted by homeowner.
12. Set time, date, language and temperature unit (Fahrenheit or
Celsius).
13. Automatically detects communicating equipment
and EIM. Non-Communicating equipment is
added in the next screen. Smart Zoning may appear after
this screen if installed along with airflow per zone screen.
14. Specify reminder types and reminder frequency
(ex: change filter every 3 months).
15. Continue with the on-screen prompts to complete
the setup of the system.
To intially add Lennox Smart Sensors, Lennox
®
Quality Monitor and Lennox Wireless Extenders, the
®
Lennox Smart Technician App must be used. Go to
®
Menu > Settings > Advanced Settings > View Support
Service Control Center > Equipment Settings > Add Sensors.
Scan QR Code for S40 Installation
Wiring Connections
Step 2
pointing up.
NOTE: For basic communicating wiring Options 2 and 3 and different equipment configurations,
please reference the Lennox S40 Smart Thermostat Installation and Setup Guide.
Use the sub-base as
a template to
mark the desired
mounting hole
locations on the wall.
Lennox Communicating
Smart
®
Helping Homeowner Connect to Wi-Fi
Step 5
1. From the thermostat's home screen, go to Menu > Settings > Wi-Fi.
2. Slide the option to the ON position to enable Wi-Fi.
3. Press on Not Connected to display a list of available access points.
4. Locate home network and select the network name.
Smart 5. Enter the home Wi-Fi network password and press join to continue. If successful the
Thermostat Connectivity Status indicator as illustrated below will show checkmarks
across all connections.
NOTE: If you wish to see the characters you are typing, check show password. The thermostat will
support up to a 63 character password. Passwords cannot contain blank spaces or % symbol.
NOTE: Whether connecting to a visible or hidden network, if successful, a check mark
will appear above both the router and Internet icons. For information on connecting
to hidden networks, please reference the S40 Homeowner Guide.
ADVANCED DIAGNOSTICS & REMOTE SHARING
Protect homeowner investment and peace of mind with active monitoring of system
operations through the Lennox
provides basic maintenance reminders, alerts homeowner of potential issues, and can
even allow the homeowner to remotely share diagnostics with the Lennox dealer to
Smart Air troubleshoot and fix problems. This proactive care helps eliminate downtime
®
and avoid unnecessary service visits and repair costs, ensuring nothing short of perfect air.
Please share this information with homeowner as you ask them to accept the Advanced
Diagnostics & Remote sharing permissions.
and Setup Guide
lennoxsmartertogether.com/dealer-access
Indoor Unit Communicating Control
(Using Non-Shielded Wiring)
18 or 22AWG
Standard Thermostat
Cable (4-Conductor)
Lennox Communicating
Outdoor Unit
OPTION 1
IMPORTANT
S40 Smart Thermostat. This feature is free of charge and
®
Français / Español
lennoxsmartertogether.com/spanish-french
Thermostat