Lennox iComfort S30 User manual

507537-02
10/2016
Supersedes 9/2016
Software Version 3.2
(12U67)
iComfort®S30 Smart
Thermostat
User Guide
Color Touchscreen Programmable Wi-Fi
Communicating Thermostat

2
TABLE OF CONTENTS
FEATURES 2..................................................
HOME SCREEN 3..............................................................
TEMPERATURE DIAL FEATURE 3....................................
SCREEN ELEMENTS 3...........................................
NOTIFICATIONS 4...............................................
SETTINGS 7..................................................................
WI-FI 7.......................................................
HOME INFO 9..................................................
ACCOUNT 9...................................................
AWAY 10......................................................
FEELS LIKE™ 10................................................
FAN 11.......................................................
HEAT &COOL 11................................................
MORE ON AUXILIARY HEAT 11......................................
HUMIDITY 12...................................................
HUMIDITY CONTROL 12...........................................
HUMIDIFICATION CONTROL CENTER 12................................
DEHUMIDIFICATION CONTROL CENTER 12..............................
DEHUMIDIFICATION SET POINT 12...................................
HUMIDIFICATION ACCESSORY INSTALLED 12............................
IHARMONY ZONING 14............................................
NOTIFICATIONS 14...............................................
ADVANCED SETTINGS 14..........................................
GENERAL 14...................................................
DISPLAY 15....................................................
USING THE SECURE WEB PORTAL 15.................................
FCC COMPLIANCE STATEMENT —PART 15.19 16........................
FCC INTERFERENCE STATEMENT —PART 15.105 (B) 16....................
RF EXPOSURE INFORMATION 16.....................................
FEATURES
This iComfort®S30 Smart Thermostat is an electronic communicating, color
display touchscreen and 7-day programmable interface which communicates
directly with the Smart Hub Controller. The Controller stores system
parameters and settings in non-volatile memory (i.e., retains data when
electrical power fails or is turned off). After online registration is completed, the
system may then be accessed by the homeowner from anywhere via computer
or mobile device (Internet connection required). This home environmental
control system also supports:
SWireless bands 802.11b, 802.11g and 802.11n
SLennox wireless point-to-point connection to other iComfort®S30 Smart
Thermostat Smart Hub Controllers in the home and other mobile devices
running the iComfort Thermostat mobile App
SThree languages are supported (English, Français and Español)
SSmart Away™ - Uses the iComfort Thermostat application to control the
home temperature while unoccupied (geo-fencing)
SFeels Like™ - Controls the system using outdoor / indoor temperatures
and indoor humidity to create the optimal comfortable conditions in the
home
SClimate IQ™ - Monitors current climate conditions and automatically
removes excess humidity when necessary (requires iComfort®
communicating outdoor unit)
SPerfect Temperature (Single Set Point) - In non-zoning applications this
allows a single temperature setting to be used to cool or heat the home
SAir conditioning or heat pump units with up to four stages of heat / two
stages of compressor operation (2 stages of heat pump heating, 2 stages
of auxiliary back-up heating, 2 stages of emergency heating)
SVariable - capacity / multiple - stage heat/cool, universal compatibility
(gas/electric/heat pump/air conditioner)
SDual-fuel capable (iComfort®heat pump only) with two balance points
SIndoor air quality with time‐based notification of consumables including
media filters, UVC bulbs, humidifier pads, and PureAir®system catalyst
service / replacement
SiHarmony®zoning system (2 - 4 zones)
SHumidification measurement and control
SDew point adjustment control
SHumiditrol®Enhanced Dehumidification Accessory (EDA)
SEquipment maintenance reminders
SHeat/Cool mode -- Permits control of heating, cooling, humidification, and
dehumidification without user involvement
SAll Lennox branded iComfort®outdoor units have an outdoor temperature
sensor factory installed
SEnhanced defrost control options for Lennox communicating heat pumps
using Intellifrost Adaptive Defrost Control
SPerformance reports are available through the homeowner web portal.
SThe iComfort®Thermostat App is available for IOS 6.0 and higher (App
Store) and Android 4.1 and higher (Google Play)
NOTE - Due to Lennox’ ongoing commitment to quality, features and options
are subject to change without notice and without incurring liability. Improper
installation, adjustment, alteration, service or maintenance can cause property
damage or personal injury. Installation and service must be performed by a
qualified installer and servicing agency.

3
HOME SCREEN
TEMPERATURE DIAL FEATURE
2:31 am
heat−to cool−to
80
inside 57%
heat/cool
away
0
ⒸⒷ
Ⓐ
Ⓔ
Ⓓ
Ⓕ
modes /schedules 78
75
tue | Mar 31, 2015
living room
Figure 1. Temperature Dial Feature
A. This is the maximum heat position indicator on the dial. This object will be
red/white in color. Selecting this object will bring up the temperature
adjustment dial for the heat-to setting adjustment.
B. This is the maximum cool position indicator on the dial. This object will be
blue/white in color. Selecting this object will bring up the temperature
adjustment dial for the cool-to setting adjustment.
C. This is the location where no system demand will be active. For example, in
figure 1, the system would be off between A and B locations.
NOTE - By default, the system is configured not to allow the heating and cooling
settings to be any closer than 3°F when the system is running in heat / cool
mode (auto-changeover).
D. When there is an active call for heating, this area of the dial will have a red
background with yellow and dark red flames animation.
E. When there is an active call for cooling, this area of the dial will have a blue
background with snow flakes animation.
F. The yellow line indicates the actual room temperature on the temperature
dial indicator.
SCREEN ELEMENTS
2:31 am
heat−to cool−to
80
inside 57%
heat/cool
away
0
ⒸⒷ
Ⓐ
Ⓔ
Ⓓ
Ⓕ
modes /schedules
78
75
tue | Mar 31, 2015
living room
ⒼⒽ
Ⓘ
Ⓙ
outside
88o
99 78o
o
9
ⓀⓁ
Ⓜ
Ⓝ
Figure 2. Screen Elements
A. The MENU button is for accessing notifications and settings.
B. A circle with a number indicates new notifications. Press menu >
notifications to display active notifications. Types of notifications include:
critical, warnings reminders, and general information. This can also be
sorted by last 24 hours, last 30 days, last 12 months or all notifications.

4
NOTIFICATIONS
Table 1. Notifications Types
Notification Type Color What it means
Critical Red Indicates something has malfunctioned and needs
immediate attention. Contact your service technician.
Warnings Orange
Indicates an emerging or developing issues that will
require attention. One example is excessive run
times. Contact your service technician.
Reminders Yellow
Indicates filter, UVA light replacement or maintenance
is needed, based on run time or calendar schedule.
See table 2 service codes.
Info Blue Indicates various system modes, for example away
mode.
NOTE - Selecting the ALL option displays all of the above.
Table 2. Reminders (Service Alerts)
Number Value
3000 Filter 1
3001 Filter 2
3002 Humidifier Pad
3003 UV Light
3004 Maintenance
3005 PureAir Maintenance
4001 User Wi-Fi state change, disable
4002 Firmware download failed
4003 Image file download failed
C. This is the current time, day of the week and date (month/day/year). This
information can be adjusted from menu > settings > general > date & time
screen.
D. This will be displayed when the system is configured for zoning or more than
one iComfort S30 Smart Thermostat is installed in the home. The iHarmony
system can support up to four zones. By default, the zones are labeled Zone
1, Zone 2, Zone 3 and Zone 4. There are also four dots underneath the name
that indicates which zone is active on the HOME screen. Additional dots may
be present if a second system is present. The zone being displayed will be a
solid white circle. See figures 3 on how to rename each zone.
Each zone can also be renamed from menu > settings > iharmony zoning.
zones
80° 80°
80° 80°
Zone 1 Zone 2 Zone 3 Zone 4
INDICATES ZONE
ACTIVE ON HOME
SCREEN
PRESS ON THIS ICON TO EDIT
THE ACTIVE ZONE NAME.
ZONES WILL CHANGE TO EDIT.
WHEN EDITING ZONES THE
PENCIL ICON CHANGES TO Ⓧ.
IN EDIT MODE ALL OF THE ZONES
ARE UNDERLINED. PRESS ON ANY
ZONE TO RENAME. PRESS ⓍTO
EXIT.
NOTE: ZONE NAME MUST BE 22 CHARACTERS OR
LESS.
SYSTEM
Figure 3. Zoning Pop-Up Display (single system)
zones
80° 80°
80° 80°
Zone 1 Zone 2 Zone 3 Zone 4
SYSTEM
SYSTEM 2
80°
Zone 1
Figure 4. Zoning Pop-Up Display (multiple systems)

5
E. This area displays various functions that are either pending or currently
active. Indicators are humidifying, dehumidifying, cooling, heating, ambient
lockout, emergency heat, cleaning air, transitioning to next schedule, load
shedding and fan is running. Indicators:
SHeating - System is heating the home.
SCooling - System is cooling the home.
SHumidifying - If humidification equipment is installed and configured,
the system will display this message when adding humidity to the air
in the home.
SDehumidifying - The system can be used in cooling mode to help
remove excessive humidity as determined by the user setting. Go to
menu > settings > humidity > and turn on dehumidify. Then adjust
the acceptable low and high humidity levels in the home with the
dehumidification set-point slider.
SDefrosting - The system is de-icing the outdoor unit coil (only when
required).
SEmergency heat - All heat pumps operating in northern climates
(below 35°F) normally need a supplemental heating source. Usually
it is in the form of electric heating provided by the indoor unit. Other
sources could be gas, oil, or hot-water back-up systems as well. The
supplemental heat is also referred to as "second-stage" or "back-up"
heating, with "first-stage" being the heat pump only. Emergency heat
is when you use your supplemental heat (2nd stage) by itself, without
the use of your heat pump (1st stage heat). Not available for non-heat
pump systems.
SAux. heat - Is only available with heat pump system. If outdoor
temperature is above the high balance point, only the heat pump will
operate (Default 50°F high). If outdoor temperature is below the low
balance point, only auxiliary heating will operate (Default 25°F low). If
outdoor temperature is in-between the high and low balance point,
both the heat pump and auxiliary heat sources can operate.
SWill start soon - A 5 minute safety delay prevents the compressor
from operating too soon after shut-down to allow internal pressures
to equalize.
SAmbient lockout - Prevents heat pump operation when outdoor
temperature is below -4°F.
STransitioning to next schedule - The system is following an active
schedule and is transitioning to the next temperature setting based on
a time indicator.
SFan is running - Displayed whenever the system is heating or cooling.
See table 3 on page 6 for fan mode descriptions.
SAllergen Defender is working - When Internet weather is enabled
and pollen count is high in the home's location, the fan will run between
heating or cooling systems to help clean the air. This feature can be
turned on under modes / schedules on the home screen. Select the fan
icon located in the upper right-hand of the screen.
F. Away - When away icon is touched, the system will automatically use energy
saving settings (heat-to 62 and cool-to 85). Temperatures can be adjusted
by pressing on the available temperature setting (i.e., heat-to or cool-to). To
exit away, press the cancel icon. In a zoning system, all zones are set to a
single heat-to and cool-too setting. Note that when manually selecting Away
from the home screen, the Smart Away feature (if enabled under settings)
will be temporally disabled until Away is canceled. See page 10 for additional
information.
G. Pressing on the heat-to area will allow the temperature setting to be
changed.
H. Pressing on the cool-to area will allow the temperature setting to be
changed.
NOTE - If the system is running on a schedule, any adjustment will display
schedule will hold until next period or select duration of hold. Touch hold
or duration to select the desired time. The hold period can be canceled by
pressing the cancel icon on the right side of the Home Screen.
I. Select Mode: Touch modes/schedules to select the system mode of
operation, run a schedule, fan mode and turn the system off. To exit this
screen, press the home icon.
Figure 5 shows the various modes of operation. To select a mode for the
system or a specific zone, press the desired operation. The gray shaded area
indicates the item has been selected.
NOTE - Options are dependent on system configuration. For example, emerg
heat will be auxiliary heat for heat pump systems only.
select mode
cool only
heat only heat / cool
emerg heat
schedules
auto
Figure 5. Select Mode

6
Fan Operation
There are three fan modes of operation, which are auto, on and circulate.
Pressing on the fan icon will allow selection of the desired fan mode.
Table 3. Fan Operation
Fan Icon Fan Mode Mode Description
ON
Fan is NOT following the schedule
and runs continuously until it is
changed from the selected mode.
AUTO Fan will follow the fan setting in the
selected schedule.
CIRCULATE
Fan is following schedule and cy
cles during periods of equipment
inactivity. Circulate run time is de
pendent on user settings.
Schedules
When selecting schedules, the available options are schedule IQ, summer,
winter, spring/fall and save energy. Schedules are all predefined and can be
changed or renamed by selecting edit schedules.
Schedule IQ - This schedule operates in heat / cool mode and answering a few
simple questions will allow the system to know how to set the temperature for
the home based on time settings.
By default there are two time and temperature settings which can be adjusted
using the edit schedules option.
@ home day - default time is 7:00AM with a low temperature setting of 67°F
and high temperature setting of 80°F.
@ home night - default time is 11:00PM with a low temperature setting of 66°F
and high temperature setting of 84°F.
away - Smart Away is used to set the temperature while the home is
unoccupied. Default low temperature setting of 62°F and high temperature
setting of 85°F.
Temperatures for “home day”, “home night” and “away” can be adjusted by
sliding the low and high temperature circle left or right on the slider.
cancel done
set time
559
006
701 PM
AM
Figure 6. Set Schedule Time Screen
For each time setting, a specific fan operation can be set as well. Options are
on, auto and circulate. Other options are rename the schedule and restore
defaults. Press the home icon to exit the screen.
J. Indicates the actual mode of operation the system is running.
K. This is the “inside” room temperature.
NOTE - If the “feels like” option is enabled, feels like will appear above the
temperature. This feature can be enabled in the user settings.
L. This icon and number represents the humidity level inside the home at the
thermostat location only. This will only be displayed if enabled in the user
settings for display. The rain drop will be displayed as different levels based
on humidity percentage are detected in the home.

7
M.Items that may appear in this area of the screen are as follows:
Is displayed when a manual temperature override
has been set. Press cancel to return to the cur
rent schedule.
Indicates the system is set to “Perfect Temp”.
Allows the current temperature to reach desired
setpoint without system operation by “coasting” to
the set cooling setpoint. Press cancel to return to
the current schedule.
Indicates the system is set to “Perfect Temp”.
Allows the current temperature to reach desired
setpoint without system operation by “coasting”
to the set heating setpoint. Press cancel to re
turn to the current schedule
N. This area of the screen will display either the outdoor temperature or weather
forecast depending on system settings. The outdoor weather option under
menu > settings > display > outdoor weather has to be ON and outdoor
temperature is set to either Internet (AccuWeather) or sensor.
Press on the weather section of the Home screen to display detail
information concerning local weather. The weather displayed is also
dependent on the user correctly adding the home info. Go to menu >
settings > home info and verify or add the home information.
If only the outdoor sensor is to be used, go to outdoor temperature and set to
sensor.
NOTE - If Internet and weather provider are selected, weather information will
only be displayed once the iComfort S30 Smart Thermostat has been setup
and connected to the Internet.
SETTINGS
The setting screen will allow the homeowner to connect to their home Wi-Fi
router and give their system a name. See list of settings for options.
wi−fi local
smart away on
off
auto
feels like
fan
heat & cool
humidity
iHarmony zoning
general
display
account
settings
notifications
home info
wi−fi local
away
name upstairs
offFeels Like
fan
heat & cool
humidity
general
display
home info
account
settings
notifications
advanced settings
iHarmony zoning
off
auto
WI-FI
This is for connecting the iComfort S30 Smart Thermostat to a secure home
wireless network.
NOTE - A router with Bonjour capabilities is required for this function. Check
the router functions if Smart Hubs do not connect. Apple Bonjour®is an
implementation of zero-configuration networking (Zeroconf), a group of
technologies that includes service discovery, address assignment, and host
name resolution.
NOTE - Never use a home guest account. Never use an open router
connection (non-secure). Always use a secure connection physically located
in the home where the thermostat is located.

8
Access Point is Visible
1. Slide the option to ON to enable Wi-Fi.
2. Wi-Fi network will show not connected. Press on not connected.
3. Select a network will be displayed listing all detected networks within
range. Select your home network by pressing on the network name.
NOTE - The iComfort S30 Smart Thermostat can connect to a home wireless
router that uses up to 32 characters in the access point name (visible or
hidden).
4. When connecting to a secure home Wi-Fi network, a password will be
requested. Enter your home Wi-Fi network password and press join to
continue.
NOTE - If you wish to see the characters you are typing, check show password.
The iComfort S30 Smart Thermostat will support up to a 63 character
password.
Access Point is Hidden
1. Slide the option to ON to enable Wi-Fi.
2. Wi-Fi network will show not connected. Press on not connected.
3. Select other.
4. The “enter new network information” screen will appear. Enter the name
of the hidden network.
NOTE - The iComfort S30 Smart Thermostat can connect to a home wireless
router that uses up to 32 characters in the access point name (visible or
hidden).
5. Select Security. Options are: none, WEP, WPA and WPA2. If your home
Wi-Fi connection is unsecured, then Wi-FI security must be enabled using
WPE, WPA or WPA2 via the router before proceeding. Consult your router
documentation on how to enable Wi-Fi security.
6. Once security type is selected, a password field will appear. Enter the
password to access your home Wi-Fi network.
NOTE - If you wish to see the characters you are typing, check show
password. The iComfort S30 Smart Thermostat will support up to a 63
character password.
7. Press join.
Whether connecting to a visible or hidden network, if successful, a check mark
will appear above both the router and Internet icons.

HOME WI-FI
ROUTER
INTERNET
ACCESS SERVER
CONNECTION
S30
THERMOSTAT
Troubleshooting Wi-Fi Connection
The following terminology is used in this troubleshooting section:
SReceived Signal Strength Indication (RSSI). RSSI is an indication of the
signal strength of the Wi-Fi router being received by the scanning device
(i.e., smart phone). Therefore, the higher the RSSI number (or less
negative in some devices), the stronger the signal.
SWireless Bands 802.11a, g and n. These are wireless networking
standards that extends bandwidth throughput up to 130mbps using the 2.4
GHz band.
SInternet Protocol Address (IP address). This is an address assigned by
your home router for each network device (e.g., computer, printer,
thermostat).
Electromagnetic Interference Causing Poor Connectivity
Locate the thermostat and router away from other devices that could possibility
interfere with wireless communications. Some examples of other devices that
could interfere are:
SMicrowave ovens
SWireless cameras
SPortable phones and bases
SBaby monitors
SWireless speakers
SBluetooth devices
SGarage door openers
SNeighbor's wireless devices
To eliminate a possible source of interference, temporally disable any devices
and see if Wi-Fi performance has improved.
Received Signal Strength Indication (RSSI)
The ideal signal strength range for the iComfort®S30 Smart Thermostat is -1 to
-69 RSSI. The signal strength can be viewed from the thermostat interface.
1. Press NETWORK SETTINGS; this screen shows a graphical view of
buttons representing OPEN and SECURE wireless networks, along with
a button for adding a network.

9
2. Select the access point that has already been established and connected.
When selecting the info icon, a screen will appear which will display an
option to forget the network and IP address assigned to the iComfort®S30
Smart Thermostat by your router, sub-net mask, router, DNS and RSSI.
If the RSSI signal strength is anywhere between -9 to -69, then the signal
strength is sufficient. If outside this range, then either relocate the router
closer to the thermostat, add a repeater, or move the Smart Hub. Adjusting
antennas on router and/or Smart Hub may resolve the issue.
Home Network ........................
IP address 192.168.1.4...............
subnet mask 255.255.255.0............
router
DNS
RSSI -40............................
i
forget this network
Figure 7. Verifying Signal Strength
HOME INFO
Selecting this option will allow the home information to be verified and corrected
if necessary. If the home information is missing, then enter the information now.
This information is required to register the system when creating an account.
The information is also used to determine the local weather if the outdoor
temperature display is set to AccuWeather.
Remove Home
There is also a selection option called remove home. Using this feature will
remove the system information from the consumer portal account. This will only
remove the system that is currently being accessed.
ACCOUNT
The account screen will allow the user to setup an account so they may access
their system remotely from the consumer portal. Reasons to create an account:
STo enable remote access to the system using a mobile device with the
iComfort Thermostat App installed. This will allow remote adjustment for
temperature settings and other features.
STo enable the Smart Away feature discussed later in this instruction.
STo directly communicate to the Dealer any issues the system may be
incurring.
This menu allows three options:
Using Existing Account
If an S30 account has already been created, then use the sign in option to
access your account. Enter your email address and password to connect your
system to your online account.
Creating a New Account
1. Use this option to create an account. Enter your email address and desired
password. Select create new account.
2. The new account screen will appear. Enter your first name, last name and
phone number (optional).
3. Enter an email address and repeat to verify.
4. Create a password under the set password location. Retype the password
to verify.
5. Check the box that will allow your dealer to receive service alerts and
possibly fix your issue remotely (recommended).
6. Check that you agree to the Lennox EULA. Press on LENNOX EULA to
read the end-user license agreement.
If the setup and connection to the Lennox server is successful, a green check
mark will appear above the server icon under the Wi-Fi menu option.


10
Generate Pin
If you do not wish to create your account using the Creating a New Account
screen, then you will need to select the Generate Pin option and write down
the pin number that appears on the screen. The pin number will be used to
associate your system to your user account. First, create your account using
either the iComfort Thermostat App or consumer website. The first time you
login to your account the screen will indicate no iComfort detected. Press on
the thermostat image, enter your pin number, and press add. If you enter the
number incorrectly the screen will indicate the number entered is invalid. Retry
again. When successful, the setup will continue on to the next applicable
screen. If you are adding an additional system to your account, press on the
menu and select add iComfort.
NOTE - The generate pin option is not required if the account is setup from the
thermostat or this is a new additional system, login to the account from the new
thermostat.
Move Out
There is also a selection option after the account is setup and active which is
called move out. Using this feature just like the remove home feature, will
remove the system/home address information from the consumer portal
account or mobile application. This will only remove the system that is currently
active. Your account is still valid.
AWAY
Away (Smart Away) is a feature that can be enabled once you have created
and registered your account. Both Home Info and Account menu options must
be completed before this option can be enabled. Once enabled, you can set the
low and high temperature settings when smart away determines that no one is
home. The Smart Away feature depends on the iComfort Thermostat App
running on your mobile device (smart phone or tablet).
NOTE - When Away is selected on the home screen, Smart Away is disabled
until Away is canceled from the home screen.
Smart Away can also be enabled from your mobile device, once you have
installed the Lennox iComfort Thermostat App and logged in. Go to the menu
> settings > away and turn ON smart away. To allow the mobile device you
are on to use this feature, turn ON participate. The away fence option will
appear and by default, the setting is for one mile. The range for this setting is
1/4 to 4miles.
It is also recommended to enable location services on your mobile device to
enhance the location accuracy when traveling away from home. Consult your
mobile device user guide for instructions.
away
smart away
Use the iComfort app to control the temperatures in your home while you are away
reset smart away
Turn participate off in all mobile devices (there are currently 2 mobile devices participating)
on
min
away set−points
Please make sure to install the iComfort S30 mobile App to participate in Smart Away.
You can also configure the away fence in the mobile App.
There are currently 2 mobile devices participating.
55°
85°
55°
Figure 8. Smart Away Screen
FEELS LIKE™
The feels like feature uses a combination of outdoor temperature and indoor
humidity to come up with the feels like comfort level in the home.
NOTE - Feels Like is not a temperature setting but the temperature that the
space feels like based on current outdoor temperature and indoor humidity. To
adjust Feels Like, lower indoor temperature, or both indoor temperature and
humidity percentage settings.
feels like
feels like
Display and control your system using feels like temperatures instead of actual temperatures
on
indoor
humidity
indoor
temperature
outdoor
temperature feels like
++
Feels like temperatures factor in the outdoor temperature
and indoor humidity for more accurate control of the temperatures in your home
= 75°
Figure 9. Feels Like™ Screen

11
FAN
Go to menu > settings > fan to turn on or off Allergen Defender. Fan mode
options for circulate can be adjusted on this screen as well. Adjustments
between 9 to 27 minutes on how long the air will circulated each hour. The
circulate option runs during any mode selected except when the system is
turned off.
Allergen Defender: When Internet weather is enabled and pollen count is high
in the home's zip code, the fan will run between heating or cooling systems to
help clean the air.
HEAT & COOL
This screen allows changes to how the system operates. Options are single
set-point, heat pump mode (normal or comfort), auxiliary heat and safety
protection.
1. Perfect Temp: Option will only be available in non-zoning systems. This
option allows the user to control both heating and cooling temperatures
with one single temperature setting. Default is off.
2. Select Heat Pump Mode: (only available with system using a heat pump).
Options are normal and comfort. Default is normal. Descriptions for what
each setting does is displayed on the screen.
3. Wider Set-Point Range: Changes the default low and high maximum
temperature setting from 60-90°F to 40-99°F.
4. Auxiliary Heat:(only on heat pump systems): An additional heat source
will be used automatically when the indoor temperature drops to a
temperature that can be adjusted using the slider temperature setting tool.
5. Safety Protection: Alerts you if the home gets too cold or hot. This is set
under this menu option on the setting for both low and high temperatures.
The system will automatically turn on either cooling or heating if the home's
interior temperature reaches either the low or high setting. A notification is
also sent to the Home screen notification area and iComfort Thermostat
App.
MORE ON AUXILIARY HEAT
Auxiliary heat is the use of an additional heat source, when the heat pump BTU
capacity is not sufficient to keep up with the home's heating demand;
sometimes it is also called supplemental heat.
When used in a dual-fuel mode, auxiliary heating is accomplished with a gas
or oil fired unit. In this mode of operation, the heat pump must shut down and
uses just the auxiliary heating unit for heating.
If the system is an air handler with electric heat, the auxiliary heat will be in
conjunction with the heat pump when the home heating requires it.
Another use of auxiliary heat with heat pump systems includes a setting called
balance point. Balance point puts temperature limits on when the heat pump
and electric heat work together or independently. When the outdoor
temperature is above the default high balance point of 50°F (default), only the
heat pump will be allowed to run (no auxiliary heat). When the outdoor
temperature is below the default low balance point of 25°F (default), only the
auxiliary heat is allowed to run (no mechanical heat pump operation). When the
outdoor temperature is between the low and high balance point settings both
heat sources are allowed to satisfy the heating demand.

12
HUMIDITY
Some options that are available under this section are dependent on whether
humidification or dehumidification accessories are installed. In addition,
modulating outdoor units (XC20, XP20, XC25 and XP25) will affect availability
of various menu options as well. Possible options are:
HUMIDITY CONTROL
Soff
Shumidify (option available when humidification accessory is installed)
Sdehumidify
Shumidify + dehumidify (option available when humidification accessory is
installed)
HUMIDIFICATION CONTROL CENTER
When humidify is enabled, the options are as follows and are dependent on
equipment type and accessory installed.
SNormal — Recommended for moderate climates. This runs the humidifier
when there is a call for heat and humidification.
SMax — Recommended for drier climates. This runs the humidifier when
there is a call for humidification only.
DEHUMIDIFICATION CONTROL CENTER
When dehumidify is enabled, the options are as follows and are dependent
on equipment type and accessory installed.
SNormal — Recommended for moderate climates. This runs the
dehumidifier when there is a call for cooling and dehumidification.
SMax
—Single and Two-Stage Outdoor Units or Modulating outdoor
units without a Discharge Air Temperature Sensor (DATS)
Installed. Recommended when outdoor air is excessively humid. May
cool your home below the set temperature.
—Modulating Outdoor Units with DATS installed. Recommended
when outdoor air is excessively humid. Adjusts cooling based on duct
sensor data. May cool your home below the set temperature.
SClimate IQ (Auto) — Automatically adjusts fan speeds and cooling power
based on local weather conditions, using Climate IQ technology. May cool
your home below the set temperature.
DEHUMIDIFICATION SET POINT
The slide bar adjustment tool allows selection between 40% to 60%.
OVERCOOLING
The slide bar adjustment tool allows selection between 0°F to 4°F. This
adjustment is only available when Max or Climate IQ (Auto) is selected.
HUMIDIFICATION ACCESSORY INSTALLED
Humidity Control: Options are: off, humidify, dehumidify and humidify +
dehumidify when a humidifier is installed. When installed, a dew point slider
bar option will appear under the humidity menu. By default the dew point slider
is set to OFF.
HUMIDIFY
1. When Humidify is selected, options under Humidification Control
Center are normal, max and dew point option to ON or OFF. Default is
OFF.
2. Humidification set points are adjustable. Range is 15% to 45% humidity.
Default is 40%.
3. When dew point is set to ON, the slide bar adjustment appears with a
range of -15% to 15%. Default is 0%.
DEHUMIDIFY
1. When Dehumidify is selected, options under Dehumidification Control
Center are normal, max and Climate IQ (Auto), depending on hardware
configuration.
2. In addition, dehumidification set-point is adjustable. Range is 40% to 60 %
humidity. Default is 50%.
HUMIDIFY + DEHUMIDIFY
1. When Humidify + Dehumidify is selected, options under Humidification
Control Center are normal and max.
2. Options under Dehumidification Control Center are normal, max, and
Climate IQ (Auto), depending on hardware configuration.
3. When dew point is set to off, the option for set points on the slider is
Humidification (left slider) and Dehumidification (right slider). Range is
15% to 60 % humidity.
4. When dew point is set to on, the range is -15% to 15%.

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Table 4. Humidity Control Modes of Operations
HumidificationOnly
Normal
These thermostat modes allow the homeowner to control the relative humidity (RH) between 15% and 45%. The following conditions must be
met for either mode to operate:
"humidification mode has been enabled, and
"the unit is in HEAT mode, and
"humidification demand exists
Additionally, the NORMAL mode requires that heat demand exists.
Max
40%
humidification set−point
45%
15%
Dehumidification Only
Normal "Both Staged and Modulating Outdoor Units: This setting is recommended when the air outside is not too humid.
Max
"Staged Outdoor Unit: This setting is recommended when the outdoor air is excessively humid. This setting may cool your home below the set
temperature in order to remove excessive indoor humidity.
"Modulating Outdoor Unit: Recommend when the outdoor air is excessively humid. This setting adjusts cooling based on duct sensor data. This
setting may cool your home below the set temperature. NOTE: Discharge air temperature sensor (catalog number 88K38) is required.
Climate IQ (Auto) "Both Staged and Modulating Outdoor Units. This setting automatically adjusts both indoor fan speed and cooling power based on local climate
conditions using Climate IQ®technology. This setting may cool your home below the set temperature.
overcooling
Available only
with Max and
Climate IQ
(Auto) 0°F
0°F
4°F
2°F
48%
dehumidification set−point
60%
40%
Humidification +
Dehumidification
15%
40% 48%
humidification set−point + dehumification set−point
60%
Dew point
Dew point adjustment mode will change the humidification set point based on the outdoor temperature and a user-defined dew point adjustment setting.
0%
dew point
15%
−15%
on
1Modulating outdoor units are XC20, XP20, XC25 and XP25
NOTE - Humidification/Dehumidification information is applicable for non-zoning systems only for the iComfort S30 Smart Thermostat using firmware version
3.15 or later.

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IHARMONY ZONING
This option will only appear on the menu if an iHarmony®zoning system is
installed.
1. Zoning: This section allows the user to turn ON or OFF zoning. If zoning
is automatically detected by the system, the default is ON.
2. Zones 1 through 4: Pressing on the right arrow will bring up a screen so
that each zone can be renamed if desired.
NOTIFICATIONS
This section allows the user to setup reminders for various accessories. By
default all listed items are disabled. The reminders can be set for 3, 6, 12 or 24
months and a custom reminder by specific date can be set.
ADVANCED SETTINGS
This section is for installers and technicians ONLY to customize system
settings and run various diagnostic tests.
SView dealer control center - allows installers and technicians to perform
custom configurations tailored for the homeowners unique requirements.
SRestart - Options are to restart Smart Hub or thermostat or both.
SPair Smart Hub to iComfort Dealer Mobile Setup App - this allows an
installer to pair their mobile device to start the initial commissioning of the
system, or a technician to use a mobile device to perform custom
configurations or troubleshooting.
GENERAL
This section provides information and setting changes for various displayed
items.
About
This page will provide detailed information concerning the HD-Display
(thermostat info) and Smart Hub. Provided are: model number, serial number,
hardware, software and Wi-Fi revisions.
In addition, for thermostat and Smart Hub, a software update option is listed.
Select software update and set Automatic Updates to YES or NO (default is
NO). You can also select check for updates now.
Dealer Info
This page will display or allow information to be changed concerning the dealer.
Items included on this page are name, address1, address2, city, state, zip
code, country/region, phone, email and website. There is a dealer access
option at the bottom of the page. Press the >button to access the dealer access
page.
Dealer Access
1. Remote View: This option allows the dealer access to remotely view your
system. Options are ON and OFF. Default is OFF.
2. Remote Control: There are two options under this section, OFF and
ON/ALWAYS. Selecting the desired option will place a green check mark
next to the feature.
3. Alerts and Notifications: Default is OFF. Turning on this feature will allow
automatic notifications to be sent to your dealer concerning maintenance.
Screen Lock
There are three options for screen locking. Default is unlocked.
SUnlocked - Changes can be made to any settings.
SPartially Unlocked - Screen is locked but temperature settings can be
changed.
SLocked - No changes can be made.
To unlock partially locked or locked, press anywhere on the screen and hold for
five seconds.
Date & Time
The following items can be set on this screen:
1. The clock can be changed to 24 hour (military). Default is OFF.
2. The following settings are only available if the system is not connected to
the Internet.
SDaylight Savings - ON or OFF. Default is ON.
STime Zone: Options are Pacific, Mountain, Central and Eastern.
Default is Central. Select time zone and press SET.
SSet Time - Local time can be adjusted. Press SET to finish.
SSet Date - Current date can be set. Press SET to finish.
NOTE - If the system is connected to the Internet, only changing to the 24 hour
clock can be selected.
Language
This allows the language used on the screen to be changed. Options are
English, Français and Español. Default is English.

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DISPLAY
The following setting options available are:
1. Outdoor Weather - Turn ON to display weather on the HOME screen.
2. Outdoor Temperature Display - Options are:
SInternet (AccuWeather) - Will display weather provided by
AccuWeather for the local area based on the homeowner zip code.
NOTE: Thermostat has to be connected to the Internet, system is
registered, and you are logged into myicomfort.com for this feature to
work. See menu > system settings > account to verify.
SSensor - Display outdoor temperature only from installed remote
outdoor sensor.
3. Outdoor Air Quality - Turn ON to display outdoor air quality on the
weather screen.
4. Indoor Humidity - Turn ON to display indoor humidity above the indoor
temperature on the HOME screen.
5. Proximity Sensor - When turned ON, the display will wake up
automatically upon approach.
6. Screen Saver - Options for this feature are:
SOff
SWeather - If turned on, will allow up to 26 animated weather screen
savers based on the AccuWeather outdoor weather forecast for the
local zip code. NOTE: Thermostat has to be connected to the Internet,
system is registered, and you are logged into myicomfort.com for this
feature to work. See menu > system settings > account to verify.
SPower Save - Screen is blank until the screen is touched or activated
by proximity sensor if enabled.
SLogo - Displays the Lennox Logo.
7. Screen Brightness - Options are ON or OFF.
SIf set to ON, control of screen brightness is automatically controlled by
the system.
SIf set to OFF, screen brightness can be adjusted using the sliding scale
adjustment tool.
8. Temp Scale - User can set to either Fahrenheit or Celsius temperature
display.
9. Clean Screen - Locks the screen and allows user 30 seconds to clean the
screen. During this period, the screen will not respond to any input.
USING THE SECURE WEB PORTAL
Access all the great Wi-Fi enabled features on your iComfort®thermostat from
our secure web portal.
www.myicomfort.com
After signing in from your computer, tablet or smart phone, you will be able to
view your iComfort system settings, adjust the temperature and view reminders
and alerts – just as you would on your iComfort thermostat at home. With a
familiar look and settings this simple, you should feel right at home.
From the web portal welcome page, you may also click on links to launch an
interactive demo or learn more about iComfort.
MOBILE APPLICATIONS
iComfort® Thermostat App(Homeowner)
The free iComfort® Thermostat App is available for use on iPhone®, iPad®and
Android™ devices.
Apple, the Apple logo, iPhone and iPad are trademarks of Apple Inc. registered in the US and other
countries.
Android is a trademark of Google Inc. Use of this trademark is subject to Google permission.

16
FCC COMPLIANCE STATEMENT — PART 15.19
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference
that may cause undesired operation.
FCC INTERFERENCE STATEMENT — PART 15.105 (B)
This equipment has been tested and found to comply with the limits for a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful interference in a
residential installation. This equipment generates, uses and can radiate radio
frequency energy and, if not installed and used in accordance with the
instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and
on, the user is encouraged to try to correct the interference by one of the
following measures:
SReorient or relocate the receiving antenna.
SIncrease the separation between the equipment and receiver.
SConnect the equipment into an outlet on a circuit different from that to which
the receiver is connected.
SConsult the dealer or an experienced radio/TV technician for help.
RF EXPOSURE INFORMATION
This equipment complies with FCC radiation exposure limits set forth for an
uncontrolled environment. In order to avoid the possibility of exceeding the
FCC radio frequency exposure limits, human proximity to the antenna shall not
be less than 20cm during normal operation.

17
A
Account
Creating a New Account, 9
Using Exisiting Account, 9
Advanced Settings, 14
Allergen Defender, 5, 11
Ambient Lockout, 5
Automatic Updates, 14
Auxiliary Heat, 5, 11
Away, 5
C
Clean Screen, 15
Climate IQ (Auto), 13
Coast to Perfect Temp (Heating), 7
Coasting to Perfect Temp (Cooling), 7
Cool Position Indicator, 3
Cooling, 5
D
Date and Time, 4, 14
Daylight Savings, 14
Set Date, 14
Set Time, 14
Time Zone, 14
Daylight Savings, 14
Dealer Access, 14
Remote Control, 14
Remote View, 14
Dealer Info, 14
Alerts and Notifications, 14
Dehumidification
Climate IQ (Auto), 13
Max, 13
Normal, 13
Dehumidify, 12
Dehumidifying , 5
Dew point, 13
Display, 15
Clean Screen, 15
Indoor Humitidy, 15
Outdoor Air Quality, 15
Outdoor Temperature Display, 15
Outdoor Weather, 15
Proximity Sensor, 15
Screen Brightness, 15
Screen Saver, 15
Temperature Scale, 15
E
Emergency Heat, 5
F
Fan
Circulate, 6
On, 6
Operation, 6
Fan is running, 5
Fan Mode Options, 11
Feels Like, 10
G
General, 2, 14
About, 14
Date and Time, 14
Dealer Info, 14
Lanugage, 14
Screen Lock, 14
Generate Pin, 10
H
Heat and Cool, 11
Perfect Temp, 11
Heat Position Indicator, 3

18
Heat Pump Mode, 11
Heating , 5
Hidden Networks, 8
Home Info, 7, 9
Home Screen, Notifications, 3
Humidification
Max, 13
Normal, 13
Humidification Accessory Installed, 12
Humidifiy, 12
Humidify + Dehumidify, 12
Humidifying , 5
Humidity, 12
Humidity Level, 6
I
iHarmony, 4
iHarmony Zoning, 14
Indoor Humitidy, 15
L
Language, 14
M
Max Dehumidification, Single and Two-Stage
Outdoor Unit, Modulating Outdoor Unit,
Modulating Outdoor Unit with DATS
Installed, 13
Move Out, 10
N
Notifications, 3, 14
Critical, Warnings, Reminders, Info, All, 3
O
Outdoor Air Quality, 15
Outdoor Temperature Display, 15
Outdoor Temperature Sensor, 7
Outdoor Weather, 7, 15
Overcooling, 12
P
Perfect Temp, 7, 11
Pin Number, 10
Proximity Sensor, 15
R
Reminders, 4
Remove Home, 9
Router Signal Strength, 8
S
Safety Protection, 11
Schedule, Time Setting Screen, 6
Schedule Hold Until Next Period, 7
Schedule IQ, 6
Schedules, 6
Screen Brightness, 15
Screen Lock, 14
Locked, 14
Partially Unlocked, 14
Unlocked, 14
Screen Saver, 15
Service Alerts, 4
Settings, 7
Wi-Fi, 7
Software Update, Automatic Updates, 14

19
T
Temperature Scale, 15
Transitioning to next schedule, 5, 7
W
Wi-Fi, 7
802.11a, g and n, 8
Access Point, 8
Hidden Networks, 8
Poor Connectivity, 8
Router Signal Strength (RSSI), 8
Security, 8
Selelct a Network, 8
Weather Provider, 7
Wider Set-Point Range, 11
Will Start Soon, 5
Z
Zoning, Maximum Character Length for
Name, 4
Zoning Pop-Up Display, 4

20