Diagnostics; Installation Report; Connect To Lennox Smart Technician App; Displaying Outdoor Temperature (Sensor) And Indoor Humidity On The Thermostat Home Screen - Lennox S40 Installation And Setup Manual

to the touch tests to run screen. Touch the left arrow at the top left side of
screen to return to the Dealer Control Center

Diagnostics

This screen allows the installer to test all major communicating components
of the system indoor unit (air handler or furnace), outdoor unit (air conditioner
or heat pump) and zoning control (if applicable). Pressing the stop diagnostics
button will pause the diagnostic function.
Touch the left arrow at the top left side of screen to return to the Dealer Control
Center.

Installation Report

This section lists information on Installer and customer information. In
addition, installation date which included current date, time, outdoor and
indoor temperatures and indoor humidity. The communicating equipment
automatically found will also be listed in this section. Information listed for
equipment is equipment name, model number, serial number and firmware
version.

Connect to Lennox Smart Technician App

This will allow the service technician to connect the Lennox
Application for servicing purposes. Follow the on-screen instructions to pair
the service app to the thermostat. The provided Quick Start Guide has a QR
code that can be scanned to download the Lennox Smart Technician App to
your mobile device.
Displaying Outdoor Temperature (Sensor) and Indoor
Humidity on the Thermostat Home Screen

Displaying the Outdoor Sensor Temperature on the Home Screen

An outdoor temperature sensor is provided in all Lennox communicating
outdoor units. To display the outdoor temperature on the home screen of the
Thermostat, you can enable this feature under the dealer control center. Use
the following procedure to enable the outdoor temperature sensor display.
1. Select Menu and then select Settings.
2. Select Advanced Settings and then select View Support Service
Control Center.
3. Select Equipment Settings and then select Thermostat.
4. Scroll down the list and select Outdoor Temperature Source and select
Sensor.
5. Select < Back and the Exit.
6. Select Menu > Display Settings.
7. Select Homescreen and set Outdoor Weather to On
8. Select Home icon to return to the home screen.

Displaying the Indoor Humidity on the Home Screen

To enable the Indoor Humidity Display on the Home screen use the following
procedure:
1. Select Menu and then select Display Settings.
2. Select Homescreen and set Indoor Humidity to On
3. Select Back and then select Home to return to the home screen.
NOTE: By default the Humidity Display is set to ON.

Specific Configurations

Dehumidification Settings

All controls for dehumidification are listed at Menu > Settings > Humidity.
Under Humidity, select dehumidify to enable dehumidification. By default it
is disabled.
When dehumidify is enabled, the options are as follows and are dependent on
equipment type and accessory installed.
Smart Technician
®
• Basic — Recommend when the air outside is not too humid.
• Max —
NOTE: Recommend use of DATS catalog number 88K38 when variable
• Climate IQ (Auto) — Automatically adjusts fan speeds and cooling power
based on local climate conditions, using Climate IQ technology. May cool
your home below the set temperature.
39

Dehumidification Setting Options

» Single and Two-Stage Outdoor Units or Variable Capacity outdoor
units without a Discharge Air Temperature Sensor (DATS)
Installed. Recommend when outdoor air is excessively humid.
May cool your home below the set temperature.
capacity outdoor units are used.
» Variable Capacity Outdoor
Recommended when outdoor air is excessively humid. Adjusts
cooling based on duct sensor data. May cool your home below the
set temperature.
Units with DATS installed.