Lennox iComfort E30 Assembly instructions

iComfort®E30
Smart Thermostat
Installation and Setup Guide
Disponible en español en www.lennoxPros.com.
507686-04 5/2018
Supersedes 507686-03
2018©Lennox Industries Inc.
Dallas, Texas, USA

2
Table of Contents
Shipping and Packing List...............................................................................3
Operating and Storage Environment, Electrical and Dimensions...............3
Installation Recommendations .......................................................................3
Smart Hub Installation, External Components, LEDs, Terminals &
Jumpers.............................................................................................................3
External Components ....................................................................................5
Push Button Function ....................................................................................6
LED Indicators ...............................................................................................6
iComfort Terminals.........................................................................................6
Conventional Equipment Terminal Connections............................................7
Unit Type Jumpers.........................................................................................7
Heat Stage Jumper Positions ........................................................................7
Air Temperature Sensor Connections............................................................8
Mag-Mount LED and Installation.....................................................................8
Installation .....................................................................................................8
LED Indicators .............................................................................................10
HD Display Components and Installation ....................................................10
Installation ...................................................................................................10
External Components .................................................................................. 11
Connecting Low Voltage Wiring.................................................................... 11
Discharge Air Temperature Sensor (DATS) ................................................ 11
Outdoor Air Temperature Sensor (OATS) ................................................... 11
Wiring Specications ...................................................................................12
Reducing Electrical Noise on Communication Bus .....................................12
Wiring Diagrams ..........................................................................................13
Commissioning (Using the Mobile Setup Application)...............................20
Mobile Device Operating System Requirements.........................................20
Service.........................................................................................................20
Alternative Method.......................................................................................21
Multiple Smart Hub(s)..................................................................................21
Restarting Smart Hub ..................................................................................21
Commissioning (Using the HD Display).......................................................21
Boot-up Screen............................................................................................21
Low Battery Status ......................................................................................22
Apple HomeKit Wi-Fi Accessory Conguration ...........................................22
Dealer Info and Language Selection ...........................................................22
Warning Screen...........................................................................................22
General Information.....................................................................................22
Equipment Found Screen............................................................................22
Non-Communicating Equipment..................................................................23
Reminders ...................................................................................................23
Dealer Control Center ....................................................................................24
Equipment ...................................................................................................25
Smart Hub ............................................................................................................................. 25
Air Handler ............................................................................................................................ 31
Furnace ................................................................................................................................. 32
Thermostat (HD Display)....................................................................................................... 32
Mag-Mount ............................................................................................................................ 32
Add / Remove Equipment ..................................................................................................... 32
Reset..................................................................................................................................... 33
Notications .................................................................................................33
Tests ............................................................................................................33
Diagnostics ..................................................................................................33
Installation Report........................................................................................33
Information...................................................................................................34
Dehumidication Settings .............................................................................34
Dehumidication Setting Options ................................................................34
Dehumidication Set Point ..........................................................................34
Advanced Dehumidication Descriptions ....................................................35
Wi-Fi Connection ............................................................................................35
Performance Reports.....................................................................................36
Replacement Parts .........................................................................................37
Mobile Applications........................................................................................37
iComfort Thermostat App (Homeowner)......................................................37
iComfort Mobile Setup App (Installer)..........................................................37
Notications (Alert Codes) ............................................................................37
Alert Code Types .........................................................................................37
Installation Checklist......................................................................................46
Index ................................................................................................................48

3
Shipping and Packing List
Quantity Description
1 iComfort®E30 smart thermostat includes a Smart Hub, HD Display, Mag-Mount and
optional use wall plate.
6 Mounting screws (#6 X 1.25” pan head) - Mag-Mount requires 4 and Smart Hub 2.
6Wall anchors (alligator anged solid wall anchors)
1 Installation and setup guide
1 User guide
1 Checklist
1Warranty certicate
IMPORTANT
The iComfort E30 smart thermostat CAN NOT be connected as a communicating
device to indoor or outdoor units. Only conventional 24VAC wiring to indoor and
outdoor units is supported.
WARNING
This product contains a chemical known to the State of California to cause cancer,
birth defects, or other reproductive harm.
NOTE: Due to Lennox’ ongoing commitment to quality, features and options are
subject to change without notice and without incurring liability.
Operating and Storage Environment, Electrical and Dimensions
• Operating Temperature is -40°F to 175°F (-40°C to 79°C)
• Shipping and storage temperature range is -40°F to 185°F (-40°C to 85°C)
• Operating humidity range is 10% to 90% non-condensing at 104°F (40°C)
• Storage humidity range is 5% to 95% non-condensing at 104°F (40°C)
• E30 Smart Hub Power Input: 24VAC, 1AMP at 60Hz.
• E30 Smart Hub DC Power Output: 12VDC (to Mag-Mount/HD Display)
• Dimensions (H x W x D):
»Mag-Mount: 3-1/4” x 3-1/4” x 1/2” (83 x 83 x 13 mm)
»HD Display: 5” x 7-1/2” x 1” (127 x 19 x 25 mm)
»E30 Smart Hub: 11-1/2” x 7-1/8” x 1-7/8” (292 mm x 181 mm x 48 mm) -
antenna length is 7-1/4” (184 mm)
Installation Recommendations
WARNING
Improper installation, adjustment, alteration, service or maintenance can cause
property damage, personal injury or loss of life.
Installation and service must be performed by a licensed professional HVAC
installer (or equivalent) or a service agency.
Before beginning installation, note the type of equipment, number of stages, and
any accessories being installed.
Do
• Read this entire document, noting which procedures pertain to your specic
equipment and system requirements.
• Make sure that all wiring conforms to local and national building and electrical
codes and ordinances.
Do Not
• Install on voltages higher than 30VAC.
• Exceed 300 feet (91 meters) run when using 18 #AWG thermostat wire or larger.
• Allow power load from any thermostat connection to be more than 1 AMP.
Smart Hub Installation, External Components, LEDs, Terminals & Jumpers
1. Things to consider when installing the Smart Hub:
• Install near the indoor unit such that there is a direct path to the approximate
location of the home Wi-Fi access point (the signal is not blocked by the
indoor unit or duct work, for example).
• Can be attached to a vertical surface such as a wall stud or roof truss web,
or to a horizontal surface such as a oor or ceiling joist, or a roof rafter.
• Smart Hub antenna should be positioned such that it is roughly vertical, no
matter the orientation of the Smart Hub, itself.
• Do not install the Smart Hub on the indoor unit, duct work, or other
equipment that could induce vibration in the Smart Hub.
• Do not install the Smart Hub on or near large metal objects. This could
adversely affect the range and directional coverage of the Smart Hub Wi-Fi
signal.
• If the Smart Hub MUST be installed on a metal object, orientate the antenna
perpendicular to the metal surface.
• In all cases, the Smart Hub antenna orientation may need to be adjusted to
obtain best Wi-Fi results.

4
2. Use the following procedure outlined in “Figure 1. Smart Hub Installation” to install the Smart Hub.
3. For low voltage wiring connections use diagrams in section titled “Connecting Low Voltage Wiring” on page 11.
1/4”
A
BD
W1 W2 W3 GY2Y1 C DS RHOB
UNIT
TYPE
HEAT
STAGES
OUTDOOR
AIR
SENSOR
DISCHARGE
AIR
SENSOR
HP
IFC
AHC
0 1 2 3
COMM
A
BUS
B
12VDC
+ -
ACC2ACC1
Front
(Hinged Cover Removed)
Rear
Keyhole
Use the Smart Hub as a template to mark the desired mounting locations on the wall or stud.
CAUTION: Do not overtighten lower mounting
screw. Doing so may damage the Smart Hub.
Secure Smart Hub to
wall using field-provided
fasteners.
Strip 1/4” insulation from
end of each control wire.
18 #AWG Thermostat Wire
Make connections to the Smart Hub using included wiring
diagrams in this instruction.
Push spring-loaded lever in and insert wire
through hole located on bottom side of connector.
Release lever to secure wire.
Smart Hub to Mag-Mount
Connectors
W1 W2 W3 GY2Y1 C DS RHOB
UNIT
TYPE
HEAT
STAGES
OUTDOOR
AIR
SENSOR
DISCHARGE
AIR
SENSOR
HP
IFC
AHC
0 1 2 3
COMM
A
BUS
B
12VDC
+ -
ACC2ACC1
W1W2 W3 GY2Y1 C DS RHOB
UNIT
TYPE
HEAT
STAGES
OUTDOOR
AIR
SENSOR
DISCHARGE
AIR
SENSOR
HP
IFC
AHC
01 2 3
COMM
A
BUS
B
12VDC
+ -
ACC2ACC1
W1W2 W3 GY2Y1
C
DS RHOB
UNIT
TYPE
HEAT
STAGES
OUTDOOR
AIR
SENSOR
DISCHARGE
AIR
SENSOR
HP
IFC
AHC
01 2 3
COMM
A
BUS
B
12VDC
+ -
ACC2ACC1
Smart Hub may be installed either horizontally or
vertically as illustrated.
Smart Hub illustrated with
hinged cover removed.
24VAC Equipment Connections
C
Figure 1. Smart Hub Installation

5
ExtErnal ComponEnts
W1 W2 W3 GY2Y1 C DS RHOB
UNIT
TYPE
HEAT
STAGES
OUTDOOR
AIR
SENSOR
DISCHARGE
AIR
SENSOR
HP
IFC
AHC
0 1 2 3
COMM
A
BUS
B
12VDC
+ -
ACC2ACC1
12VDC
+ -
COMM
A
BUS
B
Mag-Mount
E30 Smart Hub
(Hinged Cover Removed)
Mag-Mount Power
and Data Connections
24VAC Control Wiring Connections
to Indoor Unit
System Status LED
Mobile Device
Commissioning Status LED
Communication
Status LED
Unit Type and
Heat Stages Jumpers
Antenna
Outdoor and Discharge
Air Sensors
Wall mount
screw location
Reboot and Commissioning
Button
USB Port
Hinged Cover
(Removable)
Wall mount
screw location
E30 Smart Hub
(Rear View)
Wall mount
screw location
Figure 2. E30 Smart Hub Indicators and External Components

6
push Button FunCtion
The Smart Hub push button switch has two primarily functions.
• Rebooting: Press and hold the button for ve seconds to reboot the Smart Hub.
• Commissioning: Quickly press and release the button to start the process of
creating a direct network connection between the Smart Hub and mobile device
running the iComfort Mobile Setup application.
The push button has a LED associated with it that indicates the status of the Smart
Hub commissioning state.
lED inDiCators
Table 1. System and Commissioning LED Indicators
LED
Color Status Description
System Status LED
W1 W2 W3 GY2Y1
C
DS RHOB
UNIT
TYPE
HEAT
STAGES
OUTDOOR
AIR
SENSOR
DISCHARGE
AIR
SENSOR
HP
IFC
AHC
0 1 2 3
COMM
A
BUS
B
12VDC
+ -
ACC2ACC1
LEFT LED -
SYSTEM
STATUS
RIGHT LED -
COMMISSIONING
STATUS
Green System is
normal
A solid green LED indicates
no system errors are
detected. System operating
as designed.
Red HVAC Fault System has critical alert which
needs installer attention.
Amber Wi-Fi Error
Blinking amber LED indicates
either Wi-Fi is not connected,
no Wi-Fi is within range,
or and Wi-Fi hardware
error. Could also indicate
intermittent Wi-Fi connection.
Magenta T-Stat Error
Blinking magenta LED
indicates either Mag-Mount or
HD display not connected.
Cyan Hardware
Error
Blinking cyan LED indicates
E30 internal communication
error.
Commissioning Status LED
Blue System is
normal
No mobile device is directly
connected using Wi-Fi to the
Smart Hub.
Table 1. System and Commissioning LED Indicators
LED
Color Status Description
Green
Blinking green LED indicates the
commissioning button has been activated
and the Smart Hub is waiting for a connection
with a mobile device.
Green A solid green LED indicates a mobile device
is connected to the Smart Hub.
If multiple errors are present, the system status LED will display each active
condition for one second on and one second off.
The system will continue to cycle through all active conditions.
System status errors are displayed in the following priority: HVAC alerts,
thermostats and then Wi-Fi.
IMPORTANT
If any jumpers were set incorrectly AFTER commissioning was completed,
then reposition jumpers to correct conguration. Re-running the commissioning
procedure will be required at the thermostat or with the mobile app.
iComFort tErminals
Table 2. Terminal Designations
Terminal Designation Description Terminal Color
ACC1 Accessories (FOR
FUTURE USE)
Both Red
ACC2 Both White
+ 12VDC output Blue
- 12VDC return Black
ACommunications bus A Yellow
B Communications bus B Green

7
ConvEntional EquipmEnt tErminal ConnECtions
Table 3. Conventional Terminals (24VAC)
Label Description Function
W1
First-stage heat output (rst-stage gas heat output when congured as
furnace (IFC) and rst-stage electric heat output when congured as air
handler (AHC).
W2
Second-stage heat output (second-stage gas heat output when
congured as IFC and second-stage electric heat output when
congured as AHC.
W3 Third-stage heat output (third-stage electric heat output when
congured as air handler)
G
Indoor blower control (continuous fan) (monitoring only). G input may
be connected to IAQ devices such as humidier, Lennox Ventilation
Control System and Heat or Energy Recovery Ventilators to turn the
indoor blower on and off.
Y2 Second-stage compressor output.
Y1 First-stage compressor output.
DS 24VAC dehumidication signal output. The DS terminal is powered
when there is not a dehumidication call.
C
Class II, 24VAC
transformer
common
R and C terminals are used to receive power from
the indoor unit and capable of providing the power
to the Smart Hub and all the associated loads.
The R power input uses a 3A fuse (Lennox part
number 25J49.
RClass II. 24VAC
transformer power
H24VAC humidier signal output.
O
Heat pump
reversing valve
(24VAC = cool)
Used as reversing valve output for heat pumps.
The EIM uses a single-pole dual throw relay to
generate O and B signals. Normally the O output
is open and B output at 24VAC during heating
calls. During cooling calls O is 24VAC and B open.
With relay de-energized 24VAC is present on O
terminal.
When power off/ or control reset, 24VAC power
shall not be present on the O terminal.
B
Heat pump
reversing valve (24
VAC = heat)
unit typE JumpErs
Set the unit type jumper for the type of indoor unit being used (see “Figure 2. E30
Smart Hub Indicators and External Components” on page 5 and “Table 4. Unit
Type Jumpers Positions”). The factory default setting is IFC. If jumper is missing
from header, alarm 130 is activated.
Table 4. Unit Type Jumpers Positions
Jumper
Position Indoor Unit Outdoor Unit
HP DO NOT USE
IFC Conventional Furnace Conventional Heat Pump or air
conditioner
AHC Conventional Air Handler
HP IFC AHC
DO NOT
USE
Figure 3. Unit Type Jumper Positions
hEat stagE JumpEr positions
The heat staging Jumper must be set for the number of stages of electric heat (air
handler) or the number of stage of gas heat (furnace) and stages of heat pump.
Using the heat stages jumper (see gure 3 and table 8).
The factory default setting is position 2. If jumper is missing from header, alarm 130
is activated.
0 1 2 3
Figure 4. Heat Stage Jumper Positions

8
Table 5. Heat Stage Jumpers
Label
(Position)
Air Handler Heat Stages Furnace Heat Stages Heat Pump Stages
Number of Electric Heat Stages Stage Percentage Number of Gas Stages Stage Percentage Number of Compressors Stages Stage Percentage
0 No Electric Heat 0 1 100% 1 100%
1 1 100% 1 100% 1 100%
2
(default) 2 50%, 100% 2 70%, 100% 3 70%, 100%
3 3 33.5%, 66.5%, 100% 2 70%, 100% 3 70%, 100%
If jumper is missing, setting defaults to single stage. Changing jumper position after power-up requires recommission for the change to be recognized.
air tEmpEraturE sEnsor ConnECtions
Table 6. Sensors
Label Function / Description
Outdoor
Air Sensor
Show ambient temperatures (optional if weather feed is
acceptable; use X2658 Outdoor Sensor - 2 terminals).
Wiring distance between the thermostat and the outdoor
temperature sensor can not exceed 200 feet (61 m) when
wired with 18 #AWG thermostat wire.
Discharge
Air Sensor
Optional for diagnostics of indoor air; use 88K38 Discharge
Air Sensor - 2 terminals.
Wiring distance between the furnace or air handler control
module and the discharge air sensor should not exceed 10
feet (3 meters) when wired with 18 #AWG thermostat wire.
Mag-Mount LED and Installation
CAUTION
Magnets located in this product have far-reaching and strong magnetic elds.
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 elds.
installation
WALL PLATE (USE IS
OPTIONAL)
MAG-MOUNT WITHOUT
ACCESS COVER
ACCESS
COVER
WHEN REINSTALLING
A
CCESS COVER MAKE SURE THAT IT
IS SEATED PROPERLY. NOT DOING
SO WILL CAUSE CONNECTION
ISSUES.

9
Use the following procedure for installation of the Mag-Mount where existing
thermostat wiring does not exist:
1. Unpack the HD Display and Mag-Mount (wall base).
2. Determine the best location to install Mag-Mount. Ideal location should be
located away from outside wall, direct sunlight or discharge air vents.
3. Cut or drill a small hole for thermostat wiring.
3/8” (10 mm)
Diameter Hole
4. Pull about three inches of thermostat wire through the opening and remove the
outer thermostat wire jacket.
Seal wire hole in wall to prevent
cold or hot air from aecting temperature
sensor in display
IMPORTANT
Seal wire hole in wall to prevent cold or hot air from affecting temperature sensor
in HD Display.
5. Strip 1/4” (7 mm) insulation from end of each wire.
1/4”
6. Use a level to align either the mag-mount or wall plate on wall horizontally.
7. Remove cover from mag-mount by inserting a at-head screwdriver into the
slot on each side of the mag-mount. Give it a gentle twist to separate the two
sections.
Slot
Slot
8. Use mag-mount as a template to mark the desired mounting hole locations on
the wall.
Use either the Mag-Mount or wall
plate as a template to mark the
desired mounting hole locations
on the wall.
9. Drill 3/16” (5 mm) holes at marked locations on the wall for anchors. Then insert
wall anchors into holes until ush with the wall.
Drill Holes Insert in hole until ush with wall
10. Secure mag-mount to wall or through wall-plate to wall with provided #6 x 1.25”
pan head screws (4).
11. Connect thermostat wiring and reinstall access cover.

10
WARNING
DO NOT over-tighten mounting screws. Doing so my distort the mag-mount
plastic housing and cause connection issues when installed the HD display.
12. Reinstall access cover.
NOTE: Make sure the Mag-Mount cover is reinstalled correctly to the Mag-Mount
base. The cover must be ush with the base or could cause power or
communication issues.
lED inDiCators
1. A blue LED is visible when power is connected to the Mag-Mount and the HD
Display is not installed.
2. The LED has three conditions; steady on, ashing and off. Below is a
troubleshooting guide on Mag-Mount to Smart Hub connections:
Table 7. Communication Error Troubleshooting (Mag-Mount to Smart Hub)
Possible Connection Issues
Mag-Mount
LED Condition
(HD Display
Removed)
E30 Smart Hub -
System Status LED
One communication wire at either the
Mag-Mount or Smart Hub COMM BUS
A or B terminals is disconnected.
Steady Blue Flashing Magenta
LED
Table 7. Communication Error Troubleshooting (Mag-Mount to Smart Hub)
Possible Connection Issues
Mag-Mount
LED Condition
(HD Display
Removed)
E30 Smart Hub -
System Status LED
Both communication wires – at either
the Mag-Mount or Smart Hub COMM
BUS A or B are disconnected.
Flashing Blue Flashing Magenta
LED
Both communication wires – at either
the Mag-Mount or Smart Hub COMM
BUS A or B terminals are reversed.
Flashing Blue Flashing Magenta
LED
Power wires at either the Smart Hub or
Mag-Mount 12VDC + and - terminals
are disconnected.
Off Flashing Magenta
LED.
If terminals are connected correctly,
then check HD Display mounting to
Mag-Mount. HD Display may not be
secured correctly to Mag-Mount.
LED not
visible when
HD Display is
installed.
Flashing Magenta
LED.
HD Display screen
may be either blank
or a message
indicating iComfort
cannot communicate
with the equipment.
HD Display Components and Installation
installation
NOTE: Do not install HD Display or Mag-Mount on outside walls or in direct sunlight.
1. Hold the HD Display by the edges, line it up with the Mag-Mount, and move the
HD Display toward the Mag-Mount.
2. When the magnets in the Mag-Mount attract the HD Display, guide it toward the
Mag-Mount and let the magnets pull it into place.
3. Lightly press on the sides of the HD Display to make sure it is completely
seated on the Mag-Mount.
4. To remove the HD Display from the Mag-Mount, rotate the HD Display right
or left (clockwise or counter-clockwise) at least 30 degrees to disengage the
plastic hooks and then pull it straight off of the Mag-Mount.

11
WARNING
Failure to rotate the HD Display before pulling it off of the Mag-Mount may loosen
the dry wall anchors or pull the Mag-Mount off of the wall due to the increased
forced required to separate the HD Display from the Mag-Mount when it is not
rotated.
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 protective lm covering the HD Display screen until after
power is applied to the system.
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
ExtErnal ComponEnts
• Proximity Sensor - Detects a person approaching the HD Display. If the HD
Display is in Screen Saver mode and the Proximity Detect feature is set to ON,
the proximity sensor takes the HD Display out of screen saver mode and returns
the home screen when someone approaches.
• Power Button - Resets the HD Display when pressed and held for about 5
seconds.
• microSD Card slot - Not functional, for future use
• Micro USB connector - Not functional, for future use
Proximity Sensor
Power Button
microSD Slot
Micro USB Connector
Figure 5. HD Display Components
Connecting Low Voltage Wiring
The following diagrams illustrate the basic Lennox communication control wiring
for all compatible components.
DisChargE air tEmpEraturE sEnsor (Dats)
Installation of discharge air temperature sensor (DATS) (88K38) must comply with
the following requirements:
• Installed downstream of the heat exchanger or electric heat elements.
• It must be placed in free airow, where other accessories (such as humidiers,
UV lights, etc.) will not interfere with its accuracy.
• Wiring distance between the Smart Hub and the discharge air sensor must not
exceed 10 feet (3 meters) when wired with 18 #AWG thermostat wire.
• DATS is highly recommended for all systems to provided more precise
dehumidication operation.
outDoor air tEmpEraturE sEnsor (oats)
The optional outdoor air (temperature) sensor (OATS) (X2658) wiring distance to
iComfort E30 should not exceed 150 feet (45 meters) when wired with minimum
22 #AWG (recommend 18 #AWG) dedicated 2-conductor thermostat cable.
Installation of OATS must comply with the following requirements:
• Sensor wiring must be run to avoid touching or being close to high voltage wiring
and light ballast.
• Choose a protected outdoor location away from direct sunlight or other heat
sources (usually on the north side of the building).

12
• Ensure that water will neither collect on, or wash over the sensor.
• Do not locate the sensor near driveways or similar heat-absorbing masses which
may reect stored heat energy onto the sensor and send inaccurate information
to the thermostat.
• Locate the sensor away from attic and soft vents, or furnace venting pipes.
• Do not locate the sensor directly above an air conditioner or heat pump.
Wiring spECiFiCations
The following is the wiring specication for the system:
• Smart Hub to Mag-Mount wiring size is 18 #AWG.
• Thermostat does not required shielded cable wiring.
• Maximum total length of all connections combined is 1500 feet (457 meters).
• Maximum length between components is 300 feet (90 meters).
rEDuCing ElECtriCal noisE on CommuniCation Bus
This system requires four thermostat wires between the Mag-Mount and Smart
Hub.
When a thermostat cable with more than four wires is used, the extra wires
must be properly connected to avoid electrical noise. The wires must not be left
disconnected.
• 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 “Figure 6. Thermostat Wire Termination
(Electrical Noise)”.
• Keep all wiring as far away from the house electrical wiring and large electrical
appliances as possible. Recommended minimal distance is 15 feet (5 meters).
W1 W2 W3 GY2Y1 C DS RHOB
UNIT
TYPE
HEAT
STAGES
OUTDOOR
AIR
SENSOR
DISCHARGE
AIR
SENSOR
HP
IFC
AHC
0 1 2 3
COMM
A
BUS
B
12VDC
+ -
ACC2ACC1
12VDC
+ -
COMM
A
BUS
B
Unused
wires
Single wire from bundle
to Smart Hub 24VAC
Terminal C
E30 SMART HUB
MAG-MOUNT
Figure 6. Thermostat Wire Termination (Electrical Noise)

13
Wiring Diagrams
The following diagrams are typical low voltage wiring connections for various system congurations.
E30 Smart Hub
Set “Unit Type” to IFC for furnace
and AHC for air handler.
Set “Heat Stages” to number of either gas or
electric heat stages.
Not all furnaces have Y1, Y2 and W2 connections.
Wire E30 Smart Hub direct to air conditioner unit
in those cases.
Remove jumper between R and W2 if present.
Not removing may cause erroneous alert code 125
to appear.
Figure 7. Conventional Furnace or Air Hander with Conventional Air Conditioner

14
E30 Smart Hub
Set “Unit Type” to IFC for furnace
and AHC for air handler.
Set “Heat Stages” to number of
either gas or electric heat stages.
Not all furnaces have Y1, Y2 and O
connections. Wire E30 Smart Hub
direct to heat pump unit in those cases.
Remove jumper between R and W2 if present.
Not removing may cause erroneous alert code 125
to appear.
Figure 8. Conventional Furnace or Air Hander with Conventional Heat Pump

15
3
3
E30 SMART HUB
Set “Unit Type” to IFC for furnace.
Set “Heat Stages” to number of gas
heat stages.
Remove jumper between R and W2
if present. Not removing may cause
erroneous alert code 125 to appear.
NOTE: Defrost temperating is provided
by kit 67M41. Tempering thermostat-
cycles furnace on at 80ºF (26.7ºC) and
off at 90ºF (32.2ºC).
Not all furnaces have Y1, Y2 and O
connections. Wire E30 Smart Hub direct
to heat pump unit in those cases.
Figure 9. Conventional Furnace with Conventional Heat Pump (Defrost Tempering Kit Installed)

16
E30 Smart Hub
Terminals O, DS, Y1 and
Y2 used only on some air
handlers.
Cut on-board links R-DS and
R-0 on CBA32MV, CBX32MV
and CBX40UHV
Set “Unit Type” to IFC for
furnace to prevent fan
operation during
baseboard heating or until
Aquastat closes on hot
water coil heat.
Figure 10. Hydronic Baseboard Heating with Conventional Air Handler (CBX32MV(-6) or CBX40UHV)

17
E30 Smart Hub
Remove jumper between R and W2 if present.
Not removing may cause erroneous alert code 125
to appear.
Aquastat provided by installer. Set air handler
continuous fan speed to desired heating CFM
Figure 11. Hot Water Coil Heat with Aquastat Blower Control - Conventional Air Handler (CBX32MV(-6) or CBX40UHV)

18
E30 Smart Hub
E30 Smart Hub
E30 Smart Hub
Set “Unit Type” to IFC for furnace
and AHC for air handler.
Remove jumper between R and W2 if present.
Not removing may cause erroneous alert code 125
to appear.
NOTE: HRV/ERV units require their own controller. Blower
interlock only to run system blower when HRV/ERV runs.
Figure 12. Optional Accessories with Conventional Outdoor Unit

19
E30 Smart Hub
E30 Smart Hub
Set “Unit Type” to IFC for furnace
and AHC for air handler.
Remove jumper between R and W2 if present.
Not removing may cause erroneous alert code 125
to appear.
EDA Humiditrol can only be installed on matched
systems with variable speed or CBX27 indoor units.
Figure 13. Optional Accessories with Conventional Indoor Unit

20
Commissioning (Using the Mobile Setup Application)
This application tool is used by dealers to commission a iComfort E30 smart
thermostat using a Wi-Fi enabled mobile device.
A temporary Smart Hub local network provides a means for a mobile device using
the iComfort Mobile Setup application to directly communicate with the Smart Hub.
NOTE: The iComfort Mobile Setup application running on a mobile device cannot
connect to the Smart Hub through the Internet or home Wi-Fi network.
To use the iComfort Mobile Setup app, the mobile device must be:
• Wi-Fi capable
• Located in the home near the Smart Hub
NOTE: A router with Bonjour capabilities is required for this function. Check the
router features if the Smart Hub does not connect. Apple Bonjour®is an
implementation of Zero-conguration networking (Zeroconf), a group of
technologies that includes service discovery, address assignment, and
host name resolution.
moBilE DEviCE opErating systEm rEquirEmEnts
The iComfort Mobile Setup application is available for both IOS 6.0 and higher (App
Store) and Android 4.1 and higher (Google Play).
IMPORTANT
If the connection between the iComfort Mobile Setup application and Smart Hub
is idle for three (3) minutes, the Smart Hub will auto-disconnect from the mobile
device. Repeat procedures to reconnect.
1. Download and install the iComfort Mobile Setup application.
NOTE: It is recommended that when using the iComfort Mobile Setup application
to commission the system, remove the HD Display from the Mag-Mount
before starting. Once commissioning is completed, reattach the HD Display
to the Mag-Mount.
2. Go to the Smart Hub and press the commissioning button located on the side
of the unit (see “Smart Hub Installation, External Components, LEDs, Terminals
& Jumpers” on page 3 for location of button).
3. The commissioning status LED will start blinking green for two minutes. During
this time the Smart Hub will broadcast its Wi-Fi identier (SSID).
4. Go to your mobile device’s Wi-Fi connection tool and locate the Smart Hub
Wi-Fi broadcast identier. A typical example of a identier (SSID) is DIRECT-
XY12-3456.
NOTE: Refer to your mobile device’s owners manual on how to use your Wi-Fi
Connection tool.
5. Connect to the Smart Hub by using the last eight digits of the Smart Hub SSID
as the password. In this example, it would be XY123456).
6. Once the mobile device is connected to the Smart Hub, the commissioning
Status LED will turn solid green.
7. Start the iComfort Mobile Setup application and make sure you are connected
to the correct Smart Hub by checking the serial number.
8. Touch the remote-in tab on the iComfort Mobile Setup application home
screen. This will take you to the commissioning screen.
9. You can use the information provided in “Commissioning (Using the Mobile
Setup Application)” on page 20 to complete the commissioning process
using the iComfort Mobile Setup application.
10. If the system has not been commissioned it will go to commissioning screen. If
the system has already been commissioned it will go to dealer control center.
11. Once the commissioning is completed, exit the iComfort Mobile Setup
application.
12. Go to the mobile device’s Wi-Fi tool and manually disconnect from the Smart
Hub.
13. Once disconnected, the Smart Hub commissioning LED turns to a solid blue.
14. Reinstall the HD Display on the Mag-Mount.
sErviCE
To use iComfort Mobile Setup application as a service tool, the commissioning of
the system must have already been completed.
1. Download and install the iComfort Mobile Setup application if not already
installed.
2. Go to the Smart Hub and press the commissioning button once.
3. The LED will start blinking green for two minutes. During this time the Smart
Hub will broadcast its Wi-Fi identier (SSID).
4. If this is the rst time connecting to the target Smart Hub then go to your mobile
device’s Wi-Fi connection tool and locate the Smart Hub Wi-Fi broadcast
identier. A typical example of a identier (SSID) is DIRECT-XY12-3456.
5. If your mobile device had already connected previously to the target Smart
Hub, then touch the applicable Smart Hub SSID on the list and skip to step 7.