Lennox iComfort S30 Assembly instructions

iComfort®S30 (12U67)
Installation and Setup
Guide
Color Touchscreen Programmable Wi-Fi
Communicating Thermostat
507326-01 04/15

2
TABLE OF CONTENTS
Shipping and Packing List 2...........................................
General 2...........................................................
Installing Control System Components 3................................
Mag-Mount Installation 3............................................
HD Display Installation 4............................................
Smart Hub Installation 4.............................................
Wiring for Control System Components 5...............................
Configuring Heat Sections on Air Handler Control 10......................
Smart Hub Operations 11.............................................
Smart Hub Indicators and Connectors 12..............................
Connecting Mobile Application to Smart Hub 13........................
Installer System Setup 14.............................................
Dealer Control Center 16..............................................
Equipment - System 17..............................................
Equipment - System 17.............................................
Equipment - Heat Pump 22..........................................
Equipment - Air Conditioner 24.......................................
Equipment - Air Handler 24..........................................
Equipment - Furnace 25.............................................
Equipment - Thermostat (HD Display) 26..............................
Equipment - Zoning Control 27.......................................
Equipment - Add / Remove Equipment 27.............................
Equipment - Reset All Equipment 27..................................
Notifications 28....................................................
Maintenance History 49.............................................
Tests 49...........................................................
Diagnostics 49.....................................................
Information 49.....................................................
System Configurations 50.............................................
Glossary 59.........................................................
FCC Compliance 60..................................................
Replacement Parts 60................................................
Index 61............................................................
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 qualified installer, service agency or the gas supplier
SHIPPING AND PACKING LIST
1 - iComfort®S30 which includes:
> High definition (HD) wall mounted display interface with a Mag-Mount wall
base and optional use wall plate
> Smart Hub controller
4 - Mounting screws
4 - Wall anchors
1 - Installation and Setup and User Guides
1 - Warranty certificate
GENERAL
This iComfort®S30 is an electronic communicating, color display touchscreen and
7-day programmable interface which communicates directly with a Smart Hub. The
Smart Hub 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 using a remote Internet connection via computer or personal
communicating device. This home environmental control system also supports:
SWireless bands 802.11b, 802.11g and 802.11n,
SLennox wireless point-to-point connection to other Lennox Smart Hubs in
home and other mobile devices running Lennox applications.
SThree languages are supported (English, Français and Español),
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),
SLennox iComfort®Equipment Interface Module (Catalog number 10T50)
(connects the iComfort ®S30 to non-communicating indoor and outdoor units.
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 a outdoor temperature
sensor factory installed,
SEnhance defrost control options for Lennox communicating heat pumps using
Intellifrost Adaptive Defrost Control, part number 103369-04 or later.

3
INSTALLING CONTROL SYSTEM COMPONENTS
Before beginning installation, note the type of equipment, number of stages, and
any accessories being installed.
DO
SRead this entire document, noting which instructions pertain to your equipment
and system requirements.
SMake sure that all wiring conforms to local and national building and electrical
codes and ordinances.
SUse thermostat wire pair between the iComfort®and the optional outdoor
temperature sensor (may be separate wire pair or two wires of a multi-wire
cable).
SInstall the Smart Hub near the indoor unit using field-provided fasteners.
SInstall the Smart hub on a flat surface away from indoor unit to minimize
vibration. Securing Smart Hub to a wall stud is desirable.
DO NOT
SInstall on voltages higher than 30VAC.
SShort (jumper) across terminals on the gas valve or at the system controls to
test installation. This will damage the iComfort®S30 and void the warranty.
SInstall HD display on outside walls or in direct sunlight
SInstall Smart Hub to indoor unit or equipment that could induce unit vibration
to the unit.
Sexceed 300 feet (91m) run when using 18 GAUGE thermostat wire or larger
Sallow load from any thermostat connection to be more than 1 AMP.
MAG-MOUNT INSTALLATION
1. Unpacked the HD Display and mag-mount (wall base)
2. Remove Mag-Mount access cover to allow installation to an interior wall that
is not in direct sunlight or ventilation.
MAG-MOUNT ACCESS
COVER MAG-MOUNT WITHOUT
ACCESS COVER
WALL PLATE
(OPTIONAL)
3. Install Mag-Mount in desired location away from direct sunlight or any
discharge vents.
1/4”
STRIP 1/4” INSULATION FROM
END OF EACH WIRE
AB
C
CUT OR DRILL A SMALL HOLE
FOR THERMOSTAT WIRING
PULL ABOUT 3” OF THERMOSTAT WIRE
THROUGH OPENING AND REMOVE OUTER
THERMOSTAT WIRE JACKET.
THIS WILL HELP IN
ROUTING THE
THERMOSTAT WIRING TO
THE PROPER MAG-MOUNT
TERMINALS
USE MAG-MOUNT AS TEMPLATE
TO MARK DESIRED MOUNTING
HOLE LOCATIONS ON WALL.
D
DRILL 3/16” HOLES AT
MARKED LOCATIONS ON
WALL FOR ANCHORS
E
SCREW DOWN THE
ANCHORS UNTIL
FLUSH WITH WALL.
INSERT PROVIDED
WALL ANCHORS IN
HOLES.
FG
H
USE A LEVEL TO ALIGN ON WALL
HORIZONALLY.
SECURE MAG-MOUNT TO WALL WITH
PROVIDED FASTNERS AND CONNECT
CONTROL WIRING. PROVIDED WALL
PLATE MAY USED IF DESIRED.
REPLACE ACCESS COVER
I
ACESS COVER.
WALL PLATE (USE IS
OPTIONAL)
MAG-MOUNT WITHOUT
ACCESS COVER
3/8” DIAMETER
HOLE
Figure 1. Mag-Mount Installation

4
HD DISPLAY INSTALLATION
1. Line up HD display with MAG-MOUNT base.
2. Insert bottom of the HD display at 30 degree angle into tabs at bottom of the
MAG-MOUNT wall base.
TAB
WITH COVER
WITHOUT COVER
TABS
3. Rotate the HD display upward until it snaps into place by pressing on sides.
4. To remove HD display from MAG-MOUNT base simply rotate in either direction
the HD display 30 degrees and pull off. Failure to rotate display before
pulling off requires much more force to be used and may pull out wall
anchors.
NOTE: If the HD display is removed from the MAG-MOUNT base, the HD display
will shut down and not be able to communicate with the system. System can be
control from mobile devices or dealer web portal if registration has been completed.
SMART HUB INSTALLATION
1. Use the following procedure to install the Smart Hub controller. Refer to figures
3 through 11 for making control wiring connections.
2. Mount the Smart Hub near the indoor unit using field-provided fasteners.
3. Unfold both antennas to the vertical position. Adjustments may be required to
optimized transmitting and receiving.
NOTE - DO NOT mount the Smart Hub to indoor unit, duct work or equipment that
could induce vibration to the module. Mount Smart Hub on flat surface away from
indoor unit to minimize vibration. Securing module to a wall stud is desirable. If
mounted on metal surface other than above, antennas need to be perpendicular to
the metal surface.
CAUTION
Magnetic Field - Magnets located in this product have far-reaching, strong
magnetic fields. They could damage TVs and laptops, computer hard drives,
credit and ATM cards, data storage media, mechanical watches hearing aids and
speakers.
Keep HD Display away from devices and objects that could be damage by strong
magnetic fields.
ACCESS COVER SMART HUB WITHOUT
ACCESS COVER
SMART HUB
1/4”
STRIP 1/4” INSULATION FROM
END OF EACH CONTROL WIRE
A
B
C
USE SMART HUB AS TEMPLATE TO MARK DESIRED MOUNTING LOCATIONS ON WALL OR STUD.
CAUTION; DO NOT OVERTIGHTEN LOWER MOUNTING SCREW, MAY DAMAGE SMART HUB.
SECURE MAG-MOUNT TO WALL WITH
FIELD-PROVIDED FASTNERS
.
FRONT. REAR.
KEYHOLE
THROUGH-
HOLE
Figure 2. Smart Hub Controller Installation

5
WIRING FOR CONTROL SYSTEM COMPONENTS
The figure below illustrates the basic Lennox communication control wiring to all system components.
iComfort®
FURNACE (IFC) OR AIR HANDLER (AHC)
SMART HUB
IComfort®
OUTDOOR UNIT
(AC OR HP)
MAXIMUM TOTAL LENGTH OF ALL CONNECTIONS ON THE RSBUS IS LIMITED TO 1500FT.
WIRE GAUGE OF RSBUS WIRE IS 18.
C
i+
i-
R
A
i+
B
-
A
i+
B
-
HD DISPLAY
OPTIONAL DISCHARGE AIR
SENSOR (SEE DAS NOTE ON
PAGE 5)
OPTIONAL OUTDOOR AIR
SENSOR (SEE OAS NOTE ON
PAGE 5)
Figure 3. iComfort®Communicating System Wiring 1
24VAC
HEAT PUMP UNIT
- 1 OR 2 STAGE
iComfort®AIR HANDLER (AHC)
OPTIONAL OUTDOOR
AIR SENSOR (SEE OAS
NOTE ON PAGE 5)
OPTIONAL DISCHARGE AIR SENSOR
(SEE DAS NOTE ON PAGE 5)
MAXIMUM TOTAL LENGTH OF ALL
CONNECTIONS ON THE RSBUS IS
LIMITED TO 1500FT.
WIRE GAUGE OF RSBUS WIRE IS 18.
RSBUS
SETUP NOTES:
CUT Y1-Y2 ON-BOARD
LINK FOR 2-STAGE OUT
DOOR UNITS
CUT R-O ON-BOARD
LINK FOR OUTDOOR
HEAT PUMP UNITS
A
i+
B
-
A
i+
B
-
SMART HUB
HD
DISPLAY
Figure 4. iComfort®Communicating Indoor/Non-Communicating Outdoor
(HP) System Wiring
DAS NOTE: The discharge air sensor is intended to be mounted downstream of the heat exchanger and air conditioning coil. It must be placed in free airflow, where other
accessories (such as humidifiers, UV lights, etc.) will not interfere with its accuracy. Wiring distance between the IFC or AHC and the discharge air sensor should not
exceed 10 feet when wired with 18-gauge thermostat wire. 2
OAS NOTE: The optional outdoor temperature sensor wiring distance between the IFC or AHC should not exceed 200 feet when wired with 18-gauge thermostat wire.
RSBUS NOTE Maximum total length of all connections on the RSBus is limited to 1500 ft. (450 m). Maximum length between components is 300 ft. (90 m).

6
IComfort®FURNACE (IFC) OR AIR HANDLER (AHC)
24VAC AC UNIT
- 1 OR 2 STAGE
SETUP NOTE:
CUT Y1-Y2 ON-BOARD LINK
FOR 2-STAGE OUTDOOR
UNITS
OPTIONAL DISCHARGE AIR
SENSOR (SEE DAS NOTE ON
PAGE 5) OPTIONAL OUTDOOR AIR
SENSOR (SEE OAS NOTE
ON PAGE 5)
A
i+
B
-
A
i+
B
-
SMART HUB
HD DISPLAY
Figure 5. iComfort®Communicating Indoor/Non-Communicating (AC)
Outdoor System Wiring
24VAC FURNACE OR AIR
HANDLER
(1 OR 2 STAGE)
EQUIPMENT INTERFACE
MODULE (EIM)
ICOMFORT®
INDOOR UNIT
SEE EQUIPMENT INTERFACE
MODULE INSTALLATION
INSTRUCTIONS FOR ADDITIONAL
CONFIGURATIONS.
A
i+
B
-
A
i+
B
-
SMART HUB
HD DISPLAY
Figure 6. iComfort 30®Control System, Equipment Interface Module,
Non-communicating (Conventional) Indoor Unit and iComfort®Outdoor
Unit.
IN-ZONE
THERMOSTATS
PWR
D+
D-
C
PWR
D+
D-
C
PWR
D+
D-
C
PWR
D+
D-
C
ICOMFORT®INDOOR UNIT
(SEE IHARMONY®DAMPER CONTROL MODULE INSTALLATION INSTRUCTION FOR
CONNECTIONS TO DAMPERS AND SENSOR INPUTS.)
DAMPER CONTROL
MODULE (DCM)
A
i+
B
-
A
i+
B
-
HD
DISPLAY
SMART HUB
Figure 7. iComfort Wi-Fi®, iHarmony®Damper Control Module, and Communicating Indoor Unit

7
+- AB ODT
FLOAT
Switch
DH DH
Gh Rf Cf Gs YW
HVAC EQUIP .
DH
C
G
R
R
I+
I-
C
iComfort
Enabled
HVAC Unit
NC NO
NC
NO
R
I+
I-
C
iComfort Smart-Hub
SPDT RELAY
Rf WGhGsCf
HVAC EQUIP
HVAC
EQUIPMENT
DH NC
ACITIES
R
I+
I-
C
iComfort Smart-Hub
R
I+
I-
C
AUXILIARY DEHUMIDIFIER MODELS HCWHD-090
AND HCWHD-135
NOTE: HCWHD-065 IS NOT COMPATIBLE
AUXILIARY DEHUMIDIFIER MODELS HCWHD3-070 AND HCWHD-095
Figure 8. Optional Accessories Wiring (Dehumidifiers)

8
SLP98 & G71MPP FURNACE (IFC) OR AIR
HANDLER (AHC)
NOTE: 24V UV LIGHT APPLICATIONS
IN AN ICOMFORT®SYSTEM, NEITHER FURNACE NOR AIR HANDLER TRANSFORMER
WILL HAVE ADEQUATE VA TO POWER 24V UV LIGHT APPLICATIONS. AN ADDITIONAL
TRANSFORMER FOR UV LIGHT APPLICATIONS IS REQUIRED. UV LIGHT WIRING CON
NECTIONS ARE INDEPENDENT OF HVAC SYSTEM OPERATION; SEE UV LIGHT INSTAL
LATION INSTRUCTIONS.
NOTE: ICOMFORT®SENSES HUMIDITY & CONTROLS 24V “H” OUTPUT (& 120V “H”
OUTPUT) TO CYCLE HUMIDIFIER BASED ON DEMAND. NO OTHER CONTROL OR HU
MIDISTAT REQUIRED.
OPTIONAL OUTDOOR AIR SENSOR FOR USE WITH HUMIDIFIER (IF NOT ALREADY IN
THE SYSTEM FOR OTHER FUNCTIONS. BUILT INTO ALL ICOMFORT OUTDOOR UNITS).
(SEE OAS NOTE ON PAGE 81)
SL280, EL296 FURNACE
48G96 Relay
GND
IN
ICOMFORT®
OUTDOOR UNIT
SMART HUB
FOR SL290 & EL296, SEE HUMIDIFIER DIAGRAM BELOW
(BOTTOM RIGHT)
120VAC<-------HUMIDIFIER CONNECTIONS------> 24VAC
A
i+
B
-
A
i+
B
-
SMART HUB
HD DISPLAY
OPTIONAL DISCHARGE
AIR SENSOR (SEE DAS
NOTE ON PAGE 5)
OPTIONAL OUTDOOR
AIR SENSOR (SEE OAS
NOTE ON PAGE 5)
Figure 9. Optional Accessories Wiring (Humidifiers)

9
RSBUS
LVCS VENTILATION CONTROL
SYSTEM
ICOMFORT
FURNACE OR AIR
HANDLER
HEPA BYPASS FILTER X2680 HEPA
INTERLOCK KIT
PASS INDOOR BLOWER MOTOR
COMMON WIRE THROUGH CUR
RENT LOOP.
SEE HEPA INTERLOCK KIT FOR
INSTALLATION DETAILS
ICOMFORT
OUTDOOR AIR
CONDITIONING
OR HEAT PUMP
STANDARD 1 OR 2 STAGE
AC OR HP UNIT
ICOMFORT
FURNACE
OR AIR
HANDLER
ICOMFORT
FURNACE OR AIR
HANDLER
(POWER COMPANY INTERRUPTION
SYSTEMS ARE WIRED SAME AS
OVERFLOW SWITCH)
ICOMFORT 2-STAGE
FURNACE
CUT
R-DS
W914
DS
R
26L56 CURRENT SENSING RELAY KIT.
NOTE: PASS THE BLOWER MOTOR L1 WIRE
THROUGH THE
CURRENT LOOP ON THE CURRENT SENSING
RELAY AS SHOWN.
SLP98 & G71MPP FURNACE
(IFC) OR AIR HANDLER (AHC)
f
Vent ODT
HVAC HEAT OR COOL CALL, OR THE FAN IS IN CONTINUOUS OPERATION, THE VENTILATION CONTROLLER WILL
OPEN OA DAMPER TO VENTILATE IF THE OUTDOOR TEMPERATURE AND INDOOR HUMIDITY ARE WITHIN THE
LIMITS OF THE VENTILATION CONTROLLER.
LVCS. SET CYCLE TIME TO 1 HOUR; SET VENTILATION TIME TO 60 MINUTES.
NOTE: USE THE ICOMFORT®S30 CIRCULATE FAN PERCENTAGE OF ON TIME TO CONTROL VENTILATION TIME.
A
i+
B
-
A
i+
B
-
HD
DISPLAY
SMART HUB
Figure 10. Optional Accessories Wiring
INDOOR UNIT CONTROLLER
OUTDOOR UNIT
ICOMFORT®S30
SMART HUB
Single wire to
terminal C
Single wire to
terminal C
Unused wires
Unused wires
RSBUS
MINIMUM WIRE SIZE IS
18 GAUGE
BEST PRACTICES! KEEP ALL COMMUNICATION WIRING AS FAR
AWAY FROM HOUSE ELECTRICAL WIRING AND LARGE ELECTRIC
AL APPLIANCES AS POSSIBLE (15' [5M] RECOMMENDED).
MAXIMUM TOTAL LENGTH OF ALL CONNECTIONS ON THE
RSBUS IS LIMITED TO 1500 FT. (450 M). MAX. LENGTH BETWEEN
COMPONENTS IS 300 FT. (90 M).
COMMUNICATING SYSTEMS USING THE ICOMFORT®S30
REQUIRE FOUR THERMOSTAT WIRES BETWEEN THE HD
DISPLAY, SMART-HUB AND THE FURNACE/AIR HANDLER
CONTROL AND FOUR WIRES BETWEEN THE OUTDOOR
UNIT AND THE FURNACE/AIR HANDLER CONTROL. WHEN A
THERMOSTAT CABLE WITH MORE THAN FOUR WIRES IS
USED, THE EXTRA WIRES MUST BE PROPERLY CONNEC
TED TO AVOID ELECTRICAL NOISE. THE WIRES MUST NOT
BE LEFT DISCONNECTED.
NOTE: THE ICOMFORT® S30 DOES
NOT REQUIRE SHIELDED CABLE WIR
ING.
USE WIRE NUTS TO BUNDLE THE UNUSED WIRES AT EACH END
OF THE CABLE. A SINGLE WIRE SHOULD THEN BE CONNECTED
TO THE INDOOR UNIT END OF THE WIRE BUNDLE AND ATTACHED
TO THE “C” TERMINALS AS SHOWN IN THE DIAGRAM ABOVE.
Figure 11. Thermostat Wire Termination in Communicating System

10
CONFIGURATING HEAT SECTIONS ON AIR HANDLER CONTROL
IMPORTANT: PRIOR TO RUNING THE ICOMFORT S30 INSTALLER SETUP,
ELECTRIC HEAT MUST BE MANUALLY CONFIGURED!
IMPORTANT: After electric heat strips are installed, the air handler control must be
manually configured to detect the number of electric heat sections. (See also
506181-01 for complete configuration guide.)
This procedure is applicable only to the CBX32MV-XX-230-6-06 and higher and
CBX40UHV (all models). To configure the heat strips so that they will be detected
by the thermostat:
SPower must be applied to the air handler but NOT to the thermostat. Remove
thermostat from base plate or remove wires to thermostat at the air handler.
SOn the air handler control, unit should be in idle mode (decimal blinks at 1
Hertz—0.5 second ON, 0.5 second OFF.
SSelect field test mode—press and hold the push button until solid “–” appears;
release button. Display will blink.
SPress the push button and wait for the display LED to show “H” (capital H), then
release the button.
SThe air handler control cycles the indoor blower motor “on” to the selected heat
speed and stages the electric heat relays “on” and “off” to automatically detect
the number of electric heat sections. The air handler control stores the number
of electric heat sections, then automatically exits “Field Test Mode”.
SAt this point, the iComfort®S30 will now detect the heat strip information stored
in the air handler control.
OUTDOOR
AIR SENSOR
HEAT
1234
COOL
1234
DELAY
1234
ADJUST
NORM + −
HUMIDIFICATION
SMART AUTO
EVENHEAT
1234
BLOWER
ONLY CFM
100 11 5 130
85
Y1−Y2 2−STAGE COMPR R−O HEAT PUMP R−DS DEHUM
OR
C
W1
W2
G
Y2
Y1
C
R
DH
H
L
O
DS
W3
FUSE 3AMP
XFMR 24V
24 VAC
COM
3
69
1
4
7
XFMR LINE
G
2
58
P8
L1
L2
L2 L1 INDOOR
BLOWER
POWER
EARTH
INDOORBLOWER
SIGNAL
45 6
12 3
A92
INTEGRATED
CONTROL
OUTDOOR UNIT
LINK
I + I − I + I −RC
I + I −RC
THERMOSTAT
HUMIDITROL
DH
DISCHARGE
AIR SENSOR
HARMONY
PUSHBUTTON LED
Air Handler Control

11
SMART HUB OPERATIONS
Smart Hub Wi-Fi
The Smart Hub internal Wi-Fi module can remain connected to the home Wi-Fi
network (and the internet) while establishing and maintaining special ad-hoc Wi-Fi
P2P (peer-to-peer) network connections (Smart Hub Wi-Fi network) with nearby
mobile devices. These direct connections are independent of the home Wi-Fi
network and operate whether the home Wi-Fi network is connected to the Internet
or not, or whether the home Wi-Fi network is operating or not.
This special Smart Hub Wi-Fi network can connect a Smart Hub to nearby
Wi-Fi-capable mobile devices such as smart phones and tablets that are running
the Lennox iComfort®S30 service mobile application.
A service technician in the home can use a smart phone or tablet running the
iComfort®S30 service mobile application to connect to a nearby Smart Hub
whether or not the Smart Hub is connected to the home Wi-Fi network, the home
Wi-Fi network is operating, or the home Wi-Fi router is connected to the Internet.
More than one mobile device can connect to the Lennox-managed local network
through the Smart Hub Wi-Fi network.
The iComfort®S30 service mobile application running on a mobile device cannot
reach a Smart Hub through the Internet or through the home Wi-Fi network. The
mobile device must be Wi-Fi-capable, must be located in the home, and must use
Smart Hub Wi-Fi to connect to a Smart Hub.
A mobile device connected to a Smart Hub through a Smart Hub Wi-Fi network
cannot see or interact with the Internet through the Smart Hub even if the Smart
Hub is connected to the Internet through the home Wi-Fi network. The service
technician cannot check email or do an Internet search on a mobile device through
a Smart Hub Wi-Fi connection.
Lennox-Managed Local Network
Smart Hubs have the ability to connect to other iComfort®S30 devices running
Lennox software to create a special Lennox-managed local network. A
Lennox-managed local network is independent of the actual physical network it is
running on, and can operate over the home Wi-Fi network or over the Smart Hub
Wi-Fi network.
A Lennox-managed local network is similar to the home LAN (local area network)
that operates over the home Wi-Fi network in that it provides a means for devices
to communicate with each other. A Lennox-managed local network is different from
the home LAN in that it allows only Lennox devices to connect to it. A
Lennox-managed local network operates only between:
SA Smart Hub and other Smart Hubs installed in the home, over the home Wi-Fi
network
SA Smart Hub and a nearby Wi-Fi-capable mobile device running the iComfort®
S30 service mobile application, only over a Smart Hub Wi-Fi network
Up to eight Smart Hubs, each controlling a separate HVAC system in a home, can
be connected together over a Lennox-managed local network. And, even if eight
Smart Hubs are connected to each other over the Lennox-managed local network
running on the home Wi-Fi network, a mobile device running the iComfort®S30
service mobile application can still connect to the Lennox-managed local network
over the Smart Hub Wi-Fi network.
Wi-Fi-capable mobile devices running the iComfort®S30 service mobile
application must be on the premises and connect directly to a Smart Hub through
a Smart Hub Wi-Fi network. The iComfort®S30 service mobile application cannot
connect to a Smart Hub through the home Wi-Fi network or from the Internet.
Lennox Center Push Button Switch
The Smart Hub center push button switch:
SResets the Smart Hub
SStarts the process of creating a special Lennox-managed local network
between two iComfort®S30 devices
SStarts the process of adding another iComfort®S30 device to an existing
Lennox-managed local network
A iComfort®S30 device can be another Smart Hub installed in the home or a Wi
Fi capable mobile device like a smart phones or a tablet running the iComfort®S30
service maintenance application.
A Lennox-managed local network can connect Smart Hubs together through the
home Wi-Fi network or connect a Wi-Fi-enabled mobile device running the
iComfort®S30 service maintenance application to a Smart Hub through a Smart
Hub Wi-Fi network.

12
The identity of devices requesting connection to a Smart Hub is rigorously
authenticated before connection is allowed to ensure that only iComfort®S30
devices connect to a Smart Hub.
Smart Hub Indicators and Connectors
The Smart Hub using spring loaded
push connectors for wiring
connections.
Five indicators are located on the front of the Smart Hub
enclosure (near the top edge). One indicator location is
reserved for future expansion and has no icon and no
current function. The other four locations have icons
depicting Smart Hub functions and are back-lit by
LEDs. From left to right:
WI-FI – INDICATES THE STATUS OF THE INTERNAL WI-FI MODULE AND WHETHER OR
NOT IT IS CONNECTED TO THE HOME WI-FI NETWORK.
THERMOSTAT – INDICATES THE STATUS OF THE THERMOSTAT MAG-MOUNT AND HD
DISPLAY AND WHETHER OR NOT THE SMART HUB CAN COMMUNICATE WITH THE HD
DISPLAY.
HVAC – SHOWS THE STATUS OF THE HVAC EQUIPMENT IN THE HOME CONTROLLED
BY THIS SMART HUB, AND WHETHER OR NOT THE SMART HUB CAN COMMUNICATE
WITH THEM.
ALERT – SHOWS IF THERE IS A CRITICAL ALERT CONDITION.
SMART HUB INDICATOR DISPLAY LOCATION
Figure 12. Smart Hub Indicators and Connectors
These LEDs have a red LED chip and a green LED chip in the package and can
show red, green, or amber colors, steady or flashing.
As a general rule:
SUnlit indicators show there is no power to the Smart Hub or its software has
suffered a critical initialization error.
SSteady amber indicators show Smart Hub boot up and self-check processes
are in progress or have completed. Boot up and self checks normally complete
rapidly, so amber indicators may appear only briefly (except for the Wi-Fi
indicator).
SFlashing amber Wi-Fi indicator shows that the Wi-Fi module check is in
progress. Steady amber Wi-Fi indicator shows that the Wi-Fi module has
passed its check but is not connected to the home Wi-Fi network.
SFlashing green indicators show acquisition and test of resources across wired
interfaces to the Mag-Mount / HD Display and to installed HVAC equipment
SSteady green indicators show that the associated function is connected and
operating normally.
SFlashing red indicators show a problem with the associated function.
SFlashing red ALERT indicator shows that a critical alert condition exists. If one
of the other indicators is also flashing red, that is the likely source of the alert.
If no other indicators are flashing red, the source of the alert is not defined.
CENTER PUSH BUTTON INDICATOR
The center push button has a RGB (red-green-blue) LED backlight that indicates
the Lennox-managed local network communication status of the Smart Hub, and
if the Smart Hub is transferring a software image from a flash drive plugged into
the USB port. While this LED indicator can show any color, it is currently limited to
amber, green, or blue.
When the Smart Hub is in a normal steady state, -- when the Smart Hub is in
normal day-to-day operation -- the center push button backlight shows:
SSteady blue when there is only one Smart Hub in the home and it is not
connected to a mobile device running a iComfort®S30 application.
SSteady blue when there is more than one Smart Hub in the home, but this
Smart Hub is not connected to any other Smart Hub.
SSteady green when the Smart Hub is connected to another Smart Hub in the
home through a Lennox-managed local network.
During various Smart Hub transient states -- when the Smart Hub is engaged in
a special task that should complete soon -- the center push button backlight shows:
SSteady amber (briefly) while the Smart Hub conducts self tests and boots up.
SFlashing amber while software or firmware updates for an iComfort®S30
system component or a connected field-upgradable HVAC asset is being
transferred from files on a flash drive plugged into the Smart Hub USB port.
SSteady blue while the Smart Hub conducts checks on its internal Wi-Fi module
and remote HVAC assets. (Icon indicators show progress.)
SFlashing green when the Smart Hub is attempting a Lennox-managed local
network connection with another Smart Hub in the home or with a mobile
device running the iComfort®S30 service maintenance application.
SSteady green when the Smart Hub is connected to a mobile device running the
iComfort®S30 service maintenance application through a Lennox-managed
local network connection. (This is considered a transient state because the
mobile device will disconnect from the Lennox-managed network when the
task at hand is complete.)

13
MOBILE APPLICATION DIRECT CONNECTION TO ICOMFORT®S30 SMART HUB
LENNOX CENTER
BUTTON (LED RING)
CONNECTING MOBILE APP TO ICOMFORT®S30 SMART HUB USING SMART-HUB WI-FI*
1. Press the center Lennox button once on the Smart-Hub. After pressing, center green ring LED starts blinking.
2. Launch Lennox Service Mobile Application if not yet running.
3. Select DIRECT-xy-ABCD SSID* and connect to it. (*example)
4. Connect and enter "PIN”. The character ABCD in SSID is the PIN.
5. After connecting to the mobile device the center green ring LED stays solid green.
6. Proceed to the Installer System Setup section to continue.
RESTARTING SMART HUB
RESETTING SMART HUB - Pressing the center Lennox button for more than 5 seconds will restart the SMART HUB.
ICOMFORT SMART HUB NORMAL CONDITION
* SMART-HUB WI-FI is a self-contained Wi-Fi network (peer-to-peer) hosted by the SMART-HUB and totally
independent of any other local network. SMART-HUB WI-FI is used to connect multiple SMART-HUBs de
vices and mobile devices running running either the Consumer or Dealer Mobile applications. Mobile devices
will require the SMART-HUB SSID and PIN number to connect. Both SSID and pin number are located on the
SMART-HUB device. If multiple SMART-HUBS are installed, access to only one is required to control the en
tire system.
Figure 13. Connecting Mobile Application to iComfort®S30 Smart Hub using Smart Hub Wi-FI

14
INSTALLER SYSTEM SETUP
The following procedures are written for the installer setup using the HD wall
display.
When power is first applied to the system all communicating devices attached to
the system (air handler or furnace, outdoor unit or zoning control) will automatically
be configured using optimal factory default settings based on system type,
capacity and other configuration considerations.
BOOTUP SCREEN
When power is applied to the system, the HD display or sometimes referred to as
thermostat will display a welcome screen. For the dealer mobile application, refer
to figure 13 for establishing a wireless connection between the mobile application
and Smart Hub
If there is an issue with communication between any component attached to the
iComfort® S30, a critical alert message will appear on the screen. The alert
message will provide detail information concerning the possible cause. Once the
issue is corrected and power is restored to the system the first screen in the initial
setup sequence will appear.
critical
your thermostat cannot connect to the
equipment
Please make sure the equipment is wired
correctly and reboot it
for assistance please contact
1-800-0-Lennox
try again
NOTE: If a critical low battery screen is displayed, the system will automatically
start charging the HD display internal battery. On the screen the word “charging”
will appear. Once “charging” disappears (typically 3 to 10 minutes) then the display
will automatically start-up.
DEALER INFORMATION
The first screen in the installer system setup sequence is the dealer information
screen. Here either the dealer ID and/or phone number can be added. When the
system is connected to the Internet, the remaining information is automatically
populated by the Lennox server. All information can be entered manually if desired
however.
NOTE: Not all information for this screen is viewable on a single screen. Use a
finger to swipe up to access the remaining information on the screen.
Information Required:Dealer ID and / or dealer phone number. Information that
can be manually entered is name, email website, dealer address which includes
address 1, address 2, city state and zip code. Once completed press continue.
Warning Screen: If either the dealer ID or phone number is NOT provided, a
warning screen will appear. The warning screen will provide information on the
limitation imposed on the system if this information is not provided. Press no to
return to the previous screen to complete the information requested or press yes
to continue.
GENERAL INFORMATION
IMPORTANT: IF THE FOLLOWING INFORMATION IS NOT COMPLETED THE
ICOMFORT®S30 WILL NOT BE ASSOCIATED TO THE DEALER IN DAVENET.
On this screen general information needs to be verified or changed. Press any item
to change its contents. A pop-up screen will appear that will allow the information to
be added or changed.
Information Required:
1. Select desired language (ENGLISH, FRANÇAIS, ESPAÑOL).
2. Select country / region.
3. Select time and date which includes time, date, time zone, daylight savings
time (ON/OFF) and temperature unit (Fahrenheit or Celsius).
Once completed press continue.
HOME ADDRESS
On this screen the homeowner address needs to be verified or changed. Press any
line item to change its contents. Information to be added is address 1, address 2,
state, city and zip code.
Complete the requested information and press the continue button.
EQUIPMENT FOUND
This screen will display any communicating equipment the system has detected
(air handler, outdoor unit, smart hub and zoning control during initial powering up
of the system.

15
NOTE: When a Lennox Equipment Interface Module (EIM) is used and configured
either as a furnace or air handler, then the component would appear as either
EIM-Furnace or EIM-Air Handler. When using a EIM the outdoor unit may be either
a Lennox communicating or any standard 24VAC non-communicating unit.
NOTE: Not all equipment may be visible from the equipment found system screen.
Use a finger to swipe up to access additional information (if applicable) listed at the
bottom of the system box.
If non-communicating equipment needs to be added, it can be done so from this
screen.
NON-COMMUNICATING EQUIPMENT
When selecting the non-communicating (24VAC) equipment icon a screen will
appear listing various equipment that can be added. When selecting a applicable
component, a green check will appear next to the item.
NOTE - Also a temporary dialog box will appear indicating: Updating - Wait while we
check for dependencies.
NOTE: Selecting an outdoor unit type only appears if a communicating outdoor unit
is not detected by the system. Selections are one or two stage heat pumps or air
conditioners. Other equipment that can be added are humidifiers and
dehumidifiers.
Once completed press done which will display the equipment now screen. There
the additional non-communicating equipment will now be displayed along with the
communicating equipment.
Once completed press continue.
REMINDERS
This screen allows you to set reminders as either disabled or 3, 6, 12 or 24 months
and also custom by specific date.
Reminders may be set for replace filter 1, replace filter 2, replace UV blub, replace
humidifier pad, PureAir maintenance and maintenance reminder. Once a reminder
is set for a specific item, press done to return to the previous screen.
Once completed press continue.
IHARMONY ZONING
This screen will only appear if the iHarmony®zoning system is detected.
This screen allows you to rename each zone using provided preset names or
custom name. This screen will not appear if iHarmony component hardware is not
detected by the system.
Press on any zone to rename it. A screen will display that list several predefined
names that can be used which are master bedroom, guest bedroom, kitchen, living
room, media room, dining room library or custom. When a predefine name is
selected, a green check-mark will appear next to the selected name.
When creating a custom name, select custom, enter a name and press back to
return to the previous screen. A new unique zone name can be created for all four
zones.
Once done, press done to return to the zoning screen and verify the new name is
being used for the specific zone.
Once completed press continue.
SET UP AIRFLOW PER ZONE
This screen will allow the installer to setup the airflow per zone. The types of
circulation per zone are:
SBlower Circulation Airflow (gray) which includes total, assigned, minimum
and maximum airflow
SHeating Circulation Airflow (red) which includes total, assigned, minimum
and maximum airflow
SCooling Circulation Airflow (blue) which includes total, assigned, minimum
and maximum airflow.
Press on the circled green arrow to select a specific zone. The zone will explain to
allow the installer to adjust CFMs for each circulation airflow type. Use the plus and
minus buttons to adjust CFMs up and down.
Once completed press continue. The next screen that will appear is the Dealer
Control Center.

16
DEALER CONTROL CENTER
This menu provides access to the dealer for performing various functions as listed below:
dealer
control center
equipment
settings
tests
notifications
information
diagnostics
maintenance
history
exit
Use to make changes to equipment settings and
add or remove non-communicating equipment or
accessories. In addition the reset all equipment
option is available. This will allow the installer to
reset all equipment and reconfigure.
Use to display
system notifications
Use to display system
maintenance history
Use to run test on
system components
Use to run
diagnostics on
system components
Use to display
system information
Exit to Home
screen.

17
EQUIPMENT
Selections listed in this section are dependent on system hardware configuration.
Not all options will be available.
NOTE: When changing the default settings for any parameter, there is a possibility
that it will affect the settings for another parameter. If this happens, a pop-up
message will be displayed listing the other affected parameters and their new
automatically set values.
equipment name
display
filter 1 timer selection
filter 2 timer selection
uv bulb timer selection
zone 1
zone 2
zone 3
continues blower cmf
alerts
name
Changing Temperature Control Mode
warning
ok
has affected the following parameters:
new value
Temperature Control
Mode
Wall Insulation 2
1
SMART HUB
The following is a complete list of all possible parameters under System.
Parameters actually available are dependent on the Lennox communicating
equipment type detected and non-communicating equipment added.
ABOUT
This screen provides information concerning language supported, equipment type
name, control software revision, model, control mode number, control serial
number, control hardware revision, protocol revision number, device product level,
24VAC average power consumption, 24VAC peak power consumption, compatible
devices list, application code memory size and micro-controller part number.
EQUIPMENT NAME
A unique name can be assigned to this component. Name can be up to 29
characters. Name can consist of letters, numbers, special characters and spaces.
PUREAIR TIMER SELECTION
The PureAir™ Air Purification System combines multiple air purification
technologies into a single, state-of-the-art, air purifier. This selection allows timer to
be based on either calendar time or system run-time. Default is calendar time.
SMOOTH SETBACK RECOVERY
When enabled, smooth set back begins recovery up to two hours before the
programmed time so that the programmed temperature is reached at the
corresponding programmed event time. Assume 12°F per hour for first-stage
gas/electric heating and 6°F per hour for first-stage compressor based heating or
cooling. With Smooth Set Back disabled, the system will start a recovery at the
programmed time. Options are enabled or disabled. Default is enabled.
GAS HEATING ACTIVATION TEMP DIFFERENCE
Range is 0.5 to 10°F. Default is 1.5°F and can be set in increments of 0.5°F.
Adjustments are in increments of 0.5°F. When the system is dual-fuel and steady
state while operating at full HP demand, this is the amount of °F below the set point
that is allowed before allowing to switch to gas heat.
ELECTRIC HEAT CONTROL MODE (XC17, XP17, XC21 AND XP21 ONLY)
In heat pump applications, the electric heat is staged to provide supplemental heat
to meet desired comfort levels. When the electric heat section is used in
applications that do not have a heat pump, the elements are staged to limit heat so
that it meets heating demands only. Options are standard and EvenHeat. Default is
EvenHeat.
EVENHEAT DISCHARGE TEMP
When in EvenHeat Control Mode, the iComfort®S30 will stage the electric heat
sections to maintain a constant Discharge Air Temperature. The system must have
a discharge sensor connected to the system to show this parameter.
NOTE: Not selectable on XC/XP25 applications. Electric heat elements will be
staged on by the demand of the iComfort®S30.
Range is 85 to 130ºF. Default is 85ºF. Adjustments can be made in increments of
15ºF.
GAS HEAT CONTROL MODE (SLP98 ONLY)
Options are Staged, Load Tracking Variable Capacity and Variable Capacity.
Default is Staged.
Staged
Some furnaces can be configured to provide up to four stages of gas heat
operation. When staged heating is chosen, the iComfort®S30 allows you to choose
between 1, 2, 3 and 4 stages of heat. Single*stage heat: 1st stage provides 100%
of full capacity.
STwo*stage heat: 1st stage provides 70% of full capacity; 2nd stage provides
100% of full capacity.

18
SThree*stage heat: 1st stage provides 60% of full capacity; 2nd stage provides
80% of full capacity; 3rd stage provides 100% of full capacity.
SFour*stage heat: 1st stage provides 35 or 40% of full capacity; 2nd stage
provides 60% of full capacity; 3rd stage provides 80% of full capacity; 4th stage
provides 100% of full capacity.
Load Tracking Variable Capacity
Load tracking variable capacity will smoothly track the load (sensible temperature
changes) up and down and adjust the furnace heating rate both ways.
Variable Capacity
Variable capacity only tracks the load upward (rising temperature). Variable
capacity uses the iComfort®S30 stage differentials but not stage timers.
NUMBER OF GAS HEATING STAGES
This is applicable to the SLP98V only. Number of selectable stages when Gas Heat
Control Mode is set in "Staged" mode. Options are 1 through 4. Default is 4.
UNDERSTANDING MODULATING STEP CHANGE AND
STEADY STATE PI GAINS
Each of these terms has a multiplier (or gain) associated with it called the
proportional gain and the integral gain respectively and affect responsiveness and
stability
SStandard is a moderate gain suitable for nearly all installations.
SMore Aggressive is a set of slightly higher gains that will make the system
more responsive to changes, and will try harder to stay on the set point. This
setting may cause some systems to oscillate.
SLess Aggressive is a set of slightly lower gains that will make the system less
responsive and help to stabilize an oscillating system by sacrificing a small
amount of time to set point.
None of the above options will cause the system to end a call if the demand for
heating or cooling remains above the minimum capacity of the system since the
algorithm is designed to find the demand that allows the system capacity to exactly
match the house heating or cooling loss, creating a balance and constant
temperature.
MODULATING GAS HEATING STEADY STATE PI GAIN (SLP98V ONLY)
This is applicable to the SLP98V only. Steady state gain controls the demand when
the system is not responding to a sensed temperature change away from the
iComfort®S30 setting.
Options are Less Aggressive, Standard and More Aggressive. Default is Standard.
Recommend not changing this setting.
MODULATING GAS HEATING STEP CHANGE PI GAIN (SLP98V ONLY)
This is applicable to the SLP98V only. Step change gains deal with set point
changes and affects how fast the system reaches the next set point (Example:
Adjustment to the iComfort®S30 setting).
Options are Less Aggressive, Standard and More Aggressive. Default is Standard.
Recommend not changing this setting.
MODULATING GAS HEATING CYCLES PER HOUR (SLP98V ONLY)
This feature is activated when the structure BTU load is less than the minimum
Heat Pump heating capacity of the outdoor unit. The system will be cycled "ON"
and "OFF" at the selected cycles per hour to maintain the settings of the iComfort®
S30. (This governs how many cycles per hour the system will try to run when it
needs to run at less than minimum capacity)
Range is 4 to 10 cycles. Default is 6 cycles. Adjustments are in increments of 0.5
cycles.
MODULATING HP HEATING STEADY STATE PI GAIN (XP20 AND XP25)
Steady state gain controls the demand when the system is not responding to a
sensed temperature change away from the iComfort®S30 setting.
Options are Less Aggressive, Standard and More Aggressive. Default is Standard.
Recommend not changing this setting.
MODULATING HP HEATING STEP CHANGE PI GAIN (XP20 AND XP25)
Step change gains deal with set point changes and affects how fast the system
reaches the next set point (Example: Schedule change or adjustment to the
iComfort®S30 setting.
Options are Less Aggressive, Standard and More Aggressive. Default is Standard.
Recommend not changing this setting.
MODULATING HP HEATING CYCLES PER HOUR (XP20 AND XP25)
This is applicable to the XP25 only. This feature is activated when the structure
BTU load is less than the minimum Heat Pump heating capacity of the outdoor unit.
The system will be cycled "ON" and "OFF" at the selected cycles per hour to
maintain the settings of the iComfort®S30. (This governs how many cycles per
hour the system will try to run when it needs to run at less than minimum capacity)
Range is 3 to 6 cycles. Default is 4 cycles. Adjustments are in increments of 0.5
cycles.

19
AUX HEATING ACTIVATION THRESHOLD
This is an adjustment to hasten or delay the aux heat activation. This adjusts how
far below the set point the temperature must fall with the HP at 100% before
allowing electric heat to come on.
Range is 0 - 10°F with increments of 0.25°F. The default setting is 2.5°F.
COOLING MODE
Options are Normal and Comfort. Default is Normal. The normal setting cools the
home to the desired temperature setting. Comfort is when a two-stage cooling
system's 2nd stage is locked in until the demand is satisfied.
MODULATING COOLING STEADY STATE PI GAIN (XP20, XC20, XP25 AND
XC25 ONLY)
Steady state gain controls the demand when the system is not responding to a
sensed temperature change away from the iComfort®S30 setting. Options are less
aggressive, standard and more aggressive Default is standard.
MODULATING COOLING CHANGE STATE PI GAIN (XP20, XC20, XP25 AND
XC25 ONLY)
Step change gains deal with set point changes and affects how fast the system
reaches the next set point
Options are less aggressive, standard and more aggressive Default is standard.
MODULATING COOLING CYCLES PER HOUR (XP20, XC20, XP25 AND XC25
ONLY)
This feature is activated when the structure BTU load is less than the minimum
Heat Pump cooling capacity of the outdoor unit. The system will be cycled "ON"
and "OFF" at the selected cycles per hour to maintain the settings of the iComfort®
S30. (This governs how many cycles per hour the system will try to run when it
needs to run at less than minimum capacity)
Range is 3 to 6 cycles hours. Can be adjusted in increments of 0.5. Default is 4.
TEMPERATURE CONTROL MODE
Options are Normal and Comfort. Default is Normal. The normal setting cools or
heats the home to the desired temperature setting. Comfort is when a two-stage
cooling system's 2nd stage is locked in until the demand is satisfied.
SINGLE SETPOINT MODE (NON-ZONING SYSTEMS ONLY)
Options are enabled or disabled. Default is disabled. The Single Set Point
algorithm allows the user the set only one temperature set point value rather than
one value for heating and a different value for cooling. When zoning is present, the
following SSP settings are not available. When enabled the following parameters
are automatically configured for optimal settings.
PARAMETERS DESCRIPTIONS
SSP HEATING CANCEL COAST COUNTER
INCREMENT SLOPE
Range is 0 to 0.75°F. Default is 0.25°F. Adjust
ments are in increments of 0.12°F
SSP HEATING CANCEL COAST COUNTER
DECREMENT SLOPE
Range is 0.25 to 2°F. Default is 0.5°F. Adjust
ments are in increments of 0.12°F
SSP COOLING CANCEL COAST COUNTER
INCREMENT SLOPE
Range is 0.75 to 0°F. Default is 0.25°F. Adjust
ments are in increments of 0.12°F.
SSP COOLING CANCEL COAST COUNTER
DECREMENT SLOPE
Range is -2 to 0.25°F. Default is 0.5°F. Adjust
ments are in increments of 0.12°F.
SSP HEATING LOCKOUT OUTDOOR TEMP
When the outdoor temperature is above this set
ting, heating is not allowed if single set point is
running.
Range is 80 to 50°F. Default is 65°F. Adjust
ments are in increments of 1°F.
SSP COOLING LOCKOUT OUTDOOR TEMP
When the outdoor temperature is below this set
ting, cooling is not allowed if single set point is
running.
Range is 60 to 30°F. Default is 40°F. Adjust
ments are in increments of 1°F.
AUTO CHANGEOVER - TEMP DEADBAND
Prevents the Heating and Cooling from being set closer together than 3ºF or
greater than 9ºF (Dead- band).
Range is 3 to 9°F. Default is 3°F. Adjustments are in increments of 1°F.
MAX HEAT SETPOINT
The highest temperature setting that the heat set point can be set on the iComfort®
S30.
Range is 40 to 90°F. Default is 90°F. Adjustments are in increments of 1°F.
MIN COOL SETPOINT
The lowest temperature setting that the cool set point can be set on the iComfort®
S30.
Range is 60 to 90°F. Default is 60°F. Adjustments are in increments of 1°F.
HEAT COOL STAGES LOCKED IN
Default is disabled (heat/cool stages are turned off separately). If changed to
Enabled, heat/cool stages are turned off together. Options are enabled or disabled.
Default is disabled.
1ST THROUGH 6TH STAGE DIFFERENTIALS
Number of stages in iComfort®S30 is dependent on equipment that is installed.
NOTE: XC/XP25 variable capacity systems will stage electric heat but not on
differentials. It will use the iComfort®S30 PI logic to stage the electric heat). If the
system has a variable capacity furnace or zoning all stage differentials will be
ignored.

20
STAGE DELAY TIMERS
Enabled setting: When "ON" all stage delay timers (stages 2 through 6) are
enabled and will serve to bring on additional stage(s) of cooling or heating on a
timed basis (default 20 minutes) Disabled setting: All stages delay timers are
disabled. Heat/cool stages are changed based on temperature.
NOTE: The second-stage delay timer (when stage timers is Enabled) is used for
both HEATING and COOLING. However, if the system has a variable capacity
furnace, zoning or variable outdoor unit, all stage delay timer will be ignored.
2ND THROUGH 6TH STAGE DELAYS
2nd thru 6th Stage Delay timer (where applicable) - If staged delay timers are
"Enabled", the default is 20 minutes but can be programmed from 5 to 120 minutes
in 5-minute increments. If the first stage fails to advance the ambient temperature
toward the set point by 1.0°F in the programmed delay time, then the second stage
is activated. However, if the system has a variable capacity furnace, zoning or
variable outdoor unit, all stage delay timer will be ignored.
Range is 5 to 120 minutes. Default is 20 minutes. Adjustments are in increments of
5 minutes.
LOCK IN 2ND STAGE HP BY OUTDOOR TEMP (XP21 ONLY)
This accessory allows the unit to lock in 2nd stage HP heating when the outdoor
temperature goes below the jumper pin setting.
Options are off, 40°F (4°C), 45°F (7°C), 50°F (10°C) and 55°F (13°C). Default is off.
BALANCE POINT CONTROL
If system is set up as dual fuel or heat pump and electric heat, the low and high
balance point exists. The balance points feature requires that a sensed outdoor
temperature is provided to the iComfort®S30.
NOTE: When balance point control is ENABLED, the low and high balance point
fields will be turned "ON" and show RED. A message will be displayed asking you to
review the low and high balance point settings and save all RED settings.
Highlighted fields in RED must be saved to allow exit from that screen.
Options are enabled or disabled. Default is disabled. When enabled, both low and
high balance points are controlled.
HIGH BALANCE POINT
Setting used to prevent the furnace or electric heat from heating the structure.
(Alert 19 - Minor - Notification only - The outdoor temperature is higher than the
level where the furnace or electric heat is programmed to heat the home.)
Range is 17 to 75°F. Default is 50°F. Adjustments are in increments of 1°F.
LOW BALANCE POINT
Setting used to prevent the heat pump from heating the structure. (Alert 18 - Minor -
Notification only - The outdoor temperature is below the level where the heat pump
is programmed to heat the home)
Range is 20 to 72°F. Default is 25°F. Adjustments are in increments of 1°F.
ELECTRIC HEAT STAGES DURING DEFROST
Can increase or decrease the number of electric elements to come on during a call
for defrost. (iComfort®S30 will have a demand for heat.)
Range is 0 to 5 electric heat stages. Default is 2. Adjustments are in increments of
1.
MIN DEHUMIDIFICATION SETPOINT
Adjustable dehumidification range on the iComfort®S30.
Range is 40 to 60%. Default is 40%. Adjustments are in increments of 1%.
HUMIDITROL COMFORT ADJUST
Options are Maximum Overcooling, Midpoint Overcooling and Minimum
Overcooling. Default is Maximum Overcooling.
SMaximum Overcooling: Indoor temperature > (greater than) 2°F above
heating setpoint.
SMidpoint Overcooling: Indoor temperature > (greater than) HEAT setpoint
+ COOL setpoint / 2.
SMinimum Overcooling: Indoor temperature > (greater than) 2°F below
cooling setpoint.
NOTE: XP25 is not currently compatible with Humiditrol (EDA).
MAX HUMIDIFICATION SETPOINT
Maximum allowed set point for humidification.
Range is 15 to 45%. Default is 45%. Adjustments are in increments of 1%.
DEW POINT ADJUSTMENT
Range is -15 to 15°F. Default is 0°F. Adjustments are in increments of 1°F.
The Dew Point Adjustment can be set from -15% to +15%. These settings allow
adjustments to the Dew Point setting for the home. Some homes may require an
adjustment to help maintain comfort. If condensation is present on windows, set
the adjustment lower, between -15% to -5%. If the home feels dry, set the
adjustment upwards, between +5 to +15%.
AUTO CHANGEOVER - HUMIDIF. DEADBAND
Prevents the Humidification and Dehumidification settings from being closer
together than 5% or greater than 10% (Dead-band).
Range is 5 to 10%. Default is 5%. Adjustments are in increments of 1%.