Lennox iComfort S30 Assembly instructions

iComfort®S30
Installation and Setup
Guide
Color Touchscreen Programmable Wi-Fi
Communicating Thermostat
507536-01
9/2015
Supersedes 7/2015
(12U67)

2
TABLE OF CONTENTS
Shipping and Packing List 3.................................
GENERAL 3..........................................
INSTALLING CONTROL SYSTEM COMPONENTS 4.....
Mag-Mount Installation 4....................................
Mag-Mount LEDs 5.........................................
HD Display External Components 5..........................
HD Display Installation 5....................................
Smart Hub Installation 6....................................
WIRING FOR CONTROL SYSTEM COMPONENTS 7......
CONFIGURATING HEAT SECTIONS ON AIR HANDLER CONTROL .
14
SMART HUB OPERATIONS 15..........................
Smart Hub Wi-Fi 15.........................................
Lennox-Managed Local Network 15...........................
Lennox Center Push Button Switch 15.........................
Smart Hub Indicators and Connectors 16.......................
iComfort Smart Hub Normal Condition 16.......................
Center Push Button Indicator 16..............................
ICOMFORT MOBILE SETUP APPLICATION 17............
Operating System Requirements 17...........................
Commissioning 17..........................................
Service 18.................................................
Restarting Smart Hub 18.....................................
Multiple Smart Hub(s) 18.....................................
Alternative Method 18.......................................
INSTALLER SYSTEM SETUP 19.........................
Boot-up Screen 19..........................................
Low Battery Status 19.......................................
Dealer Info 19..............................................
General Information 19......................................
Equipment Found Screen 20.................................
Non-Communicating Equipment 20............................
Reminders 20..............................................
IHarmony Zoning 20.........................................
DEALER CONTROL CENTER 21.........................
Equipment 22...............................................
Smart Hub 22..............................................
Heat Pump 28..............................................
Air Conditioner 29...........................................
Air Handler 29..............................................
Furnace 30.................................................
Thermostat (HD Display) 32..................................
Zoning Control 32...........................................
Add / Remove Equipment 32.................................
Reset 32...................................................
Notifications 33.............................................
Tests 33...................................................
Diagnostics 33..............................................
Information 33..............................................
Dealer — Information 33.....................................
General Information 33......................................
Home Address 33
...........................................
SYSTEM CONFIGURATIONS 34.........................
Complete iComfort® Systems — Furnace and Air Conditioner 34.................
Complete iComfort® Systems — Furnace and HP Unit (Dual-fuel) 35.............
Complete iComfort® Systems — Air Handler and Air Conditioner 36..............
Complete iComfort® Systems — Air Handler and Heat Pump Unit 37.............
Partial iComfort® System — iComfort® Furnace and Non-Communicating Lennox
Brand (conventional) Air Conditioner 38..................................
Partial iComfort® System — iComfort® Furnace and Non-Communicating Lennox
Brand (Conventional) Heat Pump Unit (Dual-Fuel) 38......................
Partial iComfort® System — iComfort® Air Handler and Non-Communicating Lennox
Brand (conventional) Air Conditioner 39..................................
Partial iComfort® System — iComfort® Furnace and Non-Communicating Lennox
Brand (Conventional) Heat Pump Unit (Dual-Fuel) 39......................
Partial iComfort® System — iComfort® Air Handler and Non-Communicating Lennox
Brand (conventional) Heat Pump Unit 40.................................
Partial iComfort® System — iComfort® Equipment Interface Module 41...........
G71MPP or SLP98 Furnace Setting Adjustment 42.............................
FCC COMPLIANCE STATEMENT — PART 15.19 42.......
FCC INTERFERENCE STATEMENT — PART 15.105 (B) 42.
RF EXPOSURE INFORMATION 42.......................
REPLACEMENT PARTS 42..............................
REPLACEMENT ICOMFORT COMPONENT CONTROLS 42
GLOSSARY 43.........................................

3
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 includes a Smart Hub, HD Display, Mag-Mount and optional
use wall plate.
4 - Mounting screws
4 - Wall anchors
1 - Installation and setup guide
1 - User guide
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 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. The iComfort®S30 supports the following
equipment and features:
SWireless bands 802.11b, 802.11g and 802.11n,
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 (two stages of heat pump heating,
auxiliary back-up heating and emergency heating),
SVariable - capacity / multiple - stage heating and colling, universal
compatibility (gas/electric/heat pump/air conditioner)
SDual-fuel capable (iComfort®heat pump only) with high and low balance
points.
SiComfort Mobile Setup application are available for IOS 6.0 and higher
(App Store) and Android 4.1 and higher (Google Play)
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.
SSmart Away™ - Uses the iComfort®Thermostat application to control the
home temperature while unoccupied (geo-fencing).
SFeels Like™ - Control 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®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.
SHumiditrol®Enhanced Dehumidification Accessory (EDA),
SEnhance defrost control options for Lennox communicating heat pumps
using Intellifrost Adaptive Defrost Control, part number 103369-04 or
later.

4
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 procedures pertain to your
specific equipment and system requirements.
SMake sure that all wiring conforms to local and national building and electrical
codes and ordinances.
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/Mag-Mount 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. Install Mag-Mount in desired location away from direct sunlight or any
discharge vents. Use the procedures provided in figure 1, steps Athrough
J.
NOTE - Make sure that Mag-Mount is mounted to a flat surface; if not
connection pins to HD Display may not make contact.
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 OR WALL PLATE
AS TEMPLATE TO MARK DESIRED
MOUNTING HOLE LOCATIONS ON
WALL.
D
DRILL 3/16” HOLES AT
MARKED LOCATIONS ON
WALL FOR ANCHORS
E
INSERT ANCHORS UNTIL
FLUSH WITH WALL.
INSERT PROVIDED
WALL ANCHORS IN
HOLES.
F
G
H
USE A LEVEL TO ALIGN EITHER MAG-
MOUNT OR WALL PLATE ON WALL
HORIZONALLY.
SECURE MAG-MOUNT TO WALL OR
THROUGH WALL PLATE TO WALL WITH
PROVIDED FASTNERS AND CONNECT
THERMOSTAT WIRING. (SEE FIGURE 3) AND
REPLACE ACCESS COVER.
J
REMOVE COVER FROM MAG-MOUNT
BY INSERTING A FLAT-HEAD
SCREWDRIVER IN THE SLOTS ON
EACH SIDE OF THE MAG-MOUNT AND
GIVING IT A GENTAL TWIST. THIS WILL
SEPARATE THE TWO SECTIONS.
WALL PLATE (USE IS
OPTIONAL)
MAG-MOUNT WITHOUT
ACCESS COVER
3/8” DIAMETER
HOLE
NOTE: USING PROVIDED
WALL PLATE IS OPTIONAL.
I
ACCESS COVER
Figure 1. Mag-Mount Installation

5
Mag-Mount LEDs
LED: A blue LED, mounted on the internal circuit board and is visible from
outside the Mag-Mount enclosure near the top-left corner when the HD Display
is off the Mag-Mount. The LEDs indicate the following status:
SSteady - Mag-Mount is receiving power from the Smart Hub.
SFlashing - Mag-Mount is receiving power from the Smart Hub but could
be experiencing one of the following conditions:
nIt is not communicating with the Smart Hub,
nThere has been a software error in the Mag-Mount processor,
nThere has been an internal hardware error in the Mag-Mount.
SOff - Mag-Mount is not receiving power from the Smart Hub or there has
been a serious Mag-Mount internal hardware or software failure.
HD Display External Components
SProximity Sensor - Used when person approaches the HD Display. If the
HD Display in in screen saver mode and motion is detected, the unit will
exit the screen saver and return the HD Display o the home screen.
SPower Button - Used for powering off and rebooting display for
troubleshooting purposes. Press and hold for five seconds to turn off
display unit. Press and hold for five seconds to turn on unit.
SSD Card Connector - for future use.
SUSB Connector - for future use.
SSpeaker
HD Display Installation
CAUTION
Magnets located in this product have far-reaching and 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 and Mag-Mount away from devices and objects that could
be damaged by strong magnetic fields.
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 rotate in either direction
the HD Display 30 degrees and pull away from wall to remove. 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 controlled from mobile devices or dealer web portal once registration
has been completed.
5. Do not remove the label covering the HD Display screen until after power
is applied to the system.

6
CAUTION
1) Battery may need to charge before operation. Once the display
is connected, instructions may appear within 15 seconds with
further detail.
2) TO AVOID BREAKING THE GLASS DISPLAY
a. Do not apply force directly to the glass display
b. Holding the display horizontally
i. Center the display cavity on the base
ii. Press both sides equally until the snaps engage
3) AVOID EXCESSIVE FORCE TO THE CLASS DISPLAY
Smart Hub Installation
1. Use the following procedure to install the Smart Hub controller. Refer to
figures 3 through 12 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 install the Smart Hub to indoor unit, duct work or equipment
that could induce vibration to the module. Install Smart Hub on flat surface away
from indoor unit to minimize vibration. Securing module to a wall stud is
desirable. If installed on metal surface other than above, antennas need to be
perpendicular to the metal surface.
1/4”
STRIP 1/4” INSULATION FROM
END OF EACH CONTROL WIRE
A
BD
USE SMART HUB AS TEMPLATE TO MARK DESIRED MOUNTING LOCA
TIONS ON WALL OR STUD.
CAUTION: DO NOT OVERTIGHTEN LOWER MOUNTING SCREW, MAY
DAMAGE SMART HUB.
SECURE SMART-HUB TO
WALL WITH
FIELD-PROVIDED
FASTNERS
.
FRONT REAR
KEYHOLE
THROUGH-HOLE
CMAKE CONNECTIONS TO SMART HUB
USING WIRING DIAGRAMS PROVIDED
STARTING WITH FIGURE 3 ON PAGE
7.
TOUCH LEVER BACK AND
INSERT WIRE THROUGH
HOLE LOCATED ON
BOTTOM SIDE OF
CONNECTOR. RELEASE
LEVER TO SECURE WIRE.
SMART HUB WIRE
CONNECTORS.
18-GAUGE THERMOSTAT
WIRE
Figure 2. Smart Hub Installation

7
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
MAG-
MOUNT
OPTIONAL DISCHARGE AIR
SENSOR (SEE DAS NOTE ON
PAGE 7)
OPTIONAL OUTDOOR AIR
SENSOR (SEE OAS NOTE ON
PAGE 7)
12VDC
+ -
COM
BUS
A B
COM
BUS
B A
12VDC
- +
Figure 3. iComfort®Communicating System
Wiring
24VAC
HEAT PUMP UNIT
- 1 OR 2 STAGE
iComfort®AIR HANDLER (AHC)
OPTIONAL OUTDOOR
AIR SENSOR (SEE OAS
NOTE ON PAGE 7)
OPTIONAL DISCHARGE AIR SENSOR
(SEE DAS NOTE ON PAGE 7)
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 (NON-COM
MUNICATING)
CUT R-O ON-BOARD LINK
FOR OUTDOOR HEAT
PUMP UNITS (NON-COM
MUNICATING)
SMART HUB
MAG-
MOUNT
COM
BUS
B A
12VDC
- +
12VDC
+ -
COM
BUS
A B
Figure 4. iComfort®Communicating Indoor /
Non-Communicating Outdoor (HP) System Wiring
DAS NOTE:
Installation of discharge air sensor (DAS) (88K88) must comply with the following requirements:
SInstalled downstream of the heat exchanger or electric heat elements.
SIt must be placed in free airflow, where other accessories (such as humidifiers, UV lights, etc.)
will not interfere with its accuracy.
SWiring distance between the IFC or AHC and the discharge air sensor should not exceed 10
feet (3 meters) when wired with 18-gauge thermostat wire.
OAS NOTE
The optional outdoor air (temperature) sensor (OAS) (X2658) wiring distance to either the iComfort
furnace control or iComfort air handler control should not exceed 200 feet when wired with 18-gauge
thermostat wire. Installation of OAS must comply with the following requirements:
SSensor wiring must be run to avoid touching or being close to high voltage wiring and light
ballast.
SChoose a protected outdoor location away from direct sunlight or other heat sources (usually
on the north side of the building).
SEnsure that water will neither collect on, nor wash over the sensor.
SDo not locate the sensor near driveways or similar heat‐absorbing masses which may reflect
stored heat energy onto the sensor and send inaccurate information to the thermostat.
SLocate the sensor away from attic and soffit vents, or furnace venting pipes.
SDo not locate the sensor directly above an air conditioner or heat pump.
THERMOSTAT WIRING NOTE
Thermostat control wiring runs are as follows:
SMaximum total length of all connections on the the system is limited to 1500 feet (450 meters)
total.
SMaximum length between iComfort controls (indoor to outdoor unit) is 300 feet (90 meters).

8
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
(NON-COMMUNICATING)
OPTIONAL DISCHARGE AIR
SENSOR (SEE DAS NOTE ON
PAGE 7) OPTIONAL OUTDOOR AIR
SENSOR (SEE OAS NOTE
ON PAGE 7)
SMART HUB
MAG-
MOUNT
COM
BUS
B A
12VDC
- +
12VDC
+ -
COM
BUS
A B
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®
OUTDOOR UNIT
SEE EQUIPMENT INTERFACE MODULE
INSTALLATION INSTRUCTIONS FOR
ADDITIONAL CONFIGURATIONS.
SMART HUB
IF THERE IS A JUMPER INSTALLED
BETWEEN R AND W2 ON INDOOR UNIT,
THEN REMOVED. IF NOT REMOVE IT MAY
CAUSE ERRONEOUS ALERT CODE 125.
MAG-
MOUNT
COM
BUS
B A
12VDC
- +
12VDC
+ -
COM
BUS
A B
Figure 6. iComfort 30®Control System, Equipment Interface
Module, Non-Communicating (Conventional) Indoor Unit and
iComfort®Outdoor Unit.
DISCHARGE AIR SENSOR
OPTIONAL OUTDOOR AIR
SENSOR
SMART HUB
IN-ZONE
THERMOSTATS
PWR
D+
D-
C
PWR
D+
D-
C
PWR
D+
D-
C
(SEE IHARMONY®DAMPER CONTROL
MODULE INSTALLATION INSTRUCTION
FOR CONNECTIONS TO DAMPERS.
INDOOR
NOTE: USE TERMINAL DESIGNATED “IN
DOOR” ON DAMPER CONTROL MODULE TO
CONNECT TO THE INDOOR UNIT.
PWR
D+
D-
C
iComfort®INDOOR UNIT
iComfort®OUTDOOR
UNIT
TSTAT
IHARMONY ZONING
SYSTEM
To indoor unit
To iHarmony
To Smart
Hub If unable to connect two wires
to indoor unit terminals then
pigtail wiring as exampled
here.
MAG-
MOUNT
COM
BUS
B A
12VDC
- +
12VDC
+ -
COM
BUS
A B
Figure 7. iComfort®S30,
iHarmony®Zoning System, and
Communicating Indoor Unit

9
+- AB ODT
FLOAT
Switch
DH DH
Gh Rf Cf Gs YW
HVAC EQUIP .
DH
C
G
R
NC NO
NC
NO
R
I+
I-
C
SPDT RELAY
Rf WGhGsCf
HVAC EQUIP
DH NC
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
①③
②
④
R
I+
I-
C
ICOMFORT
INDOOR
UNIT
SMART HUB
MAG-
MOUNT
12VDC
- +
12VDC
+ -
COM
BUS
B A
COM
BUS
A B
R
I+
I-
C
SMART HUB
MAG-
MOUNT
12VDC
- +
12VDC
+ -
COM
BUS
B A
COM
BUS
A B
ICOMFORT
INDOOR
UNIT
Figure 8. Optional Accessories Wiring
(Dehumidifiers)

10
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 APPLI
CATIONS. AN ADDITIONAL TRANSFORMER FOR UV LIGHT APPLICATIONS IS
REQUIRED. UV LIGHT WIRING CONNECTIONS ARE INDEPENDENT OF HVAC
SYSTEM OPERATION; SEE UV LIGHT INSTALLATION INSTRUCTIONS.
NOTE: ICOMFORT®SENSES HUMIDITY & CONTROLS 24V “H” OUTPUT (&
120V “H” OUTPUT) TO CYCLE HUMIDIFIER BASED ON DEMAND. NO OTHER
CONTROL OR HUMIDISTAT REQUIRED.
OPTIONAL OUTDOOR AIR SENSOR FOR USE WITH HUMIDIFIER (IF NOT
ALREADY IN THE SYSTEM FOR OTHER FUNCTIONS. BUILT INTO ALL ICOM
FORT OUTDOOR UNITS). (SEE OAS NOTE ON PAGE 7)
SL280, EL296 FURNACE
48G96 Relay
GND
IN
ICOMFORT®
OUTDOOR UNIT
SMART HUB
FOR SL280 & EL296, SEE HUMIDIFIER DIAGRAM BELOW
(BOTTOM RIGHT)
120VAC<-------HUMIDIFIER CONNECTIONS------> 24VAC
SMART
HUB
OPTIONAL DIS
CHARGE AIR SENSOR
(SEE DAS NOTE ON
PAGE 7)
OPTIONAL OUTDOOR
AIR SENSOR (SEE OAS
NOTE ON PAGE 7)
A
i+
B
-
A
i+
B
-
HD
DISPLAY
MAG-
MOUNT
12VDC
+ -
COM
BUS
A B
12VDC
- +
COM
BUS
B A
Figure 9. Optional Accessories Wiring (Humidifiers)