icomfort™ Residential Communicating Control System
icomfort Touch™ Communicating Thermostat
Bulletin No. 210538
February 2010
The icomfort Touch™ Communicating Thermostat recognizes and connects to all icomfort™-enabled
products to automatically congure and control the system (based on user-specied settings) for the
highest level of comfort, performance and efciency. Also recognizes model and serial number information
for icomfort™-enabled products to simplify system setup.
Advanced icomfort™ controls in specic heating and cooling units communicate information about various
operating parameters to the thermostat to constantly maintain the most efcient operating conditions
possible. Additional conventional (not icomfort™-enabled) indoor air quality comfort controls (PureAir™
Air Purication System, Healthy Climate® Humidiers, Humiditrol® Enhanced Dehumidication Accessory,
Healthy Climate® Energy/Heat Recovery Ventilators) can be added to the system for a complete totalcomfort system.
Conventional outdoor units (not icomfort™-enabled) can easily be added and controlled by the icomfort
Touch™ Communicating Thermostat.
A simple easy-to-use menu-driven touchscreen allows complete system conguration. Scheduled
maintenance alerts, system warnings and troubleshooting are also displayed in simple English on
thermostat screen.
Easy to read 5.7 in. screen (measured diagonally).
A tabbed interface lists all programming options on the screen.
Installer setup screens allow quick and simple system conguration without a manual, Installer can also
run tests on complete system or individual components for easy maintenance and troubleshooting.
Serial communications bus (RSBus), with less wiring than a conventional heating/cooling system, allows
system communication. Uses 4-wire, 18-gauge standard thermostat wiring.
Thermostat can be recess mounted on a wall (3-gang electrical box required). Subbase with terminal strip
is furnished for easy installtion.
The Optional Outdoor Sensor may be used with an icomfort equipped outdoor unit for a secondary
(alternate) sensor reading.
Optional Outdoor Sensor may be ordered for use with a conventional outdoor unit.
2
Required with Air Handler applications when using EVENHEATER® option. Optional on all other
applications for service diagnostics
49W95
icomfort™-enabled
Air Handler
Variable Speed
Blower
icomfort™ Communicating Control System / Page 2
Page 3
RESIDENTIAL COMMUNICATING CONTROL SYSTEM
SYSTEM COMPONENTS
The complete icomfort™ control system consists of an
icomfort Touch™ Communication Thermostat paired
with an icomfort™-enabled furnace and air conditioner
or an icomfort™-enabled air handler and heat pump
outdoor unit (or furnace for dual-fuel operation). Indoor
units must contain the icomfort™ control. A noncommunicating outdoor unit may be used (some system
features will be reduced).
FEATURED SYSTEM PRODUCTS
icomfort Touch™ Communicating Thermostat
Large full color touchscreen - no hidden buttons or
doors.
Temperature and humidity control (humidify/dehumidify).
Sophisticated control and scheduling.
Also controls conventional (not icomfort™-enabled)
products (includes standard thermostat terminal
designations).
Dave Lennox Signature™ Collection G71MPP
Variable-Capacity, Variable-Speed Furnaces
Energy Star® qualied.
95% AFUE energy efciency.
Variable-capacity operation.
Multi-position design.
icomfort™ control.
Precise Comfort™ technology.
AirFlex™ technology.
Fully insulated cabinet.
SureLight® Control delivers
operation reliability.
Silicon nitride igniter.
Dave Lennox Signature™ Collection XC21 TwoStage Air Conditioners
Energy Star® qualied.
Up to 20.5 SEER cooling
efciency.
icomfort™ control.
SilentComfort™ technology.
Quiet operation, as low as 69
dB.
R-410A refrigerant.
Dependable and efcient twostage scroll compressor.
SmartHinge™ louvered coil
protection.
Optimized for use with the Humiditrol® whole-home
dehumidication system.
Also available - XC17 Single-Stage Air Conditioner.
Dave Lennox Signature™ Collection XP21 TwoStage Heat Pumps
Energy Star® qualied
Up to 18.6 SEER and 9.30
HSPF heating efciency
icomfort™ control.
SilentComfort™ technology
Quiet operation, as low as
69 dB
R-410A refrigerant
Dependable and efcient twostage scroll compressor
SmartHinge louvered coil protection
Optimized for use with the Humiditrol® whole-home
dehumidication system
Also available - XP17 Single-Stage Heat Pump.
Dave Lennox Signature™ Collection CBX40UHV
Variable-Speed Air Handlers
4-way multi-position design.
icomfort™ control.
Variable-speed blower motor.
R-410A refrigerant compatible.
Automatic comfort control for lower,
summertime humidity levels.
Anti-microbial drain pan resists the
growth of mold and mildew.
Healthy Climate® MERV 16 high
efciency air lter.
Includes knock-out for easy installation
of Healthy Climate® germicidal light.
Also available - CBX32MV Variable-Speed Air Handler.
icomfort™ Communicating Control System / Page 3
Page 4
FEATURES
USER SETTINGS
HOME SCREEN (PROGRAM ON)
current temp
70
humidity 45% (OK)
indoors conditions
set
heat to
63
cool to
85
press for more
January 26, 2010 12:00 AM
set hold
1 hour
2 hours
8 hours
24 hours
until next pgm.
custom time
select
setcancel
Indoor Conditions
• Large display of current indoor temperature (°F or °C)
• Current heating setpoint temperature (heat to)
• Current cooling setpoint temperature (cool to)
• Raise / Lower temperature setting arrows (up / downarrows) to set heating or cooling setpoints indenitely
(program off).
If program is “on” screen displays adjustable set hold time
(1, 2, 8, 24 hours, until next program or custom set time)
Both setpoint temperatures and adjustment arrows are
displayed if System is set to Heat/Cool mode.
• Humidity settings (humidity is 45% OK)
• System Mode (system is heating / cooling)
• Program Mode (program is off, program is on)
• Service Alerts (triangle symbol). Touch for details.
Press for more displays Indoor Settings (and dashboard)
screen.
INDOOR SETTINGS AND USER DASHBOARD
weatherHELP
temperature settings
current temp
indoor
humidity
set
heat to
63
cool to
70
program is ON
indoor
settings
85
January 26, 2010 12:00 AM
alerts
system settings
heat & cool
cool only
heat only
off
fan settings
auto
on
circulate
select
select
HOMEzonesprograms
Temperature Settings
• Large display of current indoor temperature (°F or °C)
• Current heating setpoint temperature (heat to)
• Current cooling setpoint temperature (cool to)
• Raise / Lower temperature setting arrows (up / down arrows) to set heating or cooling setpoints indenitely
System Settings
• Heat & Cool
• Cool Only
• Heat Only
• Emergency Heat (if air handler or dual fuel system)
• Off
Selecting Heat Only or Cool Only only displays those
setpoints.
Fan Settings
• Auto
• On
• Circulate
Selecting other tabs on screen displays different
Dashboard Tab screens.
icomfort™ Communicating Control System / Page 4
Page 5
FEATURES
USER SETTINGS
USER DASHBOARD TABS
• Programs Tab
• Indoor Humidity
• Alerts
• HELP
• HOME
• Zones Tab (for future use)
• Weather Tab - Displays outdoor temperature if
icomfort-enabled outdoor unit or optional outdoor
temperature sensor is enabled (set in user setup)
PROGRAMS
programs
press select to turn the program schedule ON or OFF
(program ON)
(program OFF)
do you want to view or
edit the current program?
view/edit
January 26, 2010 12:00 AM
•
Program (Program On, Program Off)
do you want to restore the
original energy saving program?
select
HELP
restore
HOME
• Current Program (View or Edit)
• Restore EnergyStar® Program (Conrm or Cancel)?
View Program
the following program settings have been saved
•
Displays current program
press a program to edit it
press NEW to create a program
time
mon, tue,
wed, thu,
fri, sat,
sun
(program ON)
(program OFF)
heat
cool
fanautoautoautoauto
select
January 26, 2010 12:00 AM
6:00AM8:00AM5:00PM10:00
70
75
62
85
press to edit
new
HELP
PM
70
62
78
82
HOME
Edit Program
select days to schedule
set schedules for a group of days
all 7 days
set schedules for a specific day
mon
•
Set schedule for a group of days (all 7 days, mon - fri,
tuewedthufrisatsun
press next to edit the schedule for
mon - fri
OR
all 7 days
next
cancel
January 26, 2010 12:00 AM
HELP
sat, sun
HOME
sat - sun) or set schedule for each individual day
schedule for all 7 days
time
heat
temp
cool
temp
fan
press and hold a time
button to turn an
individual setting on/off
•
Set time of day, heat temp., cool temp. and fan
6:00
AM
706270
78857862
autoautoautoauto
8:00
AM
January 26, 2010 12:00 AM
5:00PM10:00
cancelback
HELP
PM
62
HOME
settings for days selected (four events per day)
• Skip an event if desired
Restore EnergyStar® Program
• Restores program to EnergyStar® default comfort
settings:
• Left side of screen displays various help screens
depending on which dashboard tab is selected rst
(Indoor Settings, Programs, Indoor Humidity, Alerts)
• Clean Screen (30 second timer for cleaning screen
without affecting settings)
• Use Preferences (see User Preferences section for
details)
HOME
• Returns to home screen
icomfort™ Communicating Control System / Page 5
Page 6
FEATURES
weatherHELP
indoor
alerts
humidity
HOMEzonesprograms
indoor
settings
Time and Date
user settings
Daylight Saving
Time
To change a user setting,
highlight a setting on the left
and then press ‘modify’.
back
done
modify
Circulate Fan ON
Time
Dealer Name
Dealer Address
Dealer Phone
Number
Dealer Email
January 26, 2010 12:00 AM
USER SETTINGS
INDOOR HUMIDITY
weatherHELP
current indoor
humidity level is 45%
45
indoor
settings
•
Set humidity or dehumidify levels (if equipped)
indoor
humidity
(OK)
50
40
cooling
comfort
range
January 26, 2010 12:00 AM
alerts
HOMEzonesprograms
• Humidity adjustable from 15 to 45% relative humidity
(RH)
• Dehumidify adjustable from 40 to 60% relative
humidity (RH)
ALERTS
weatherHELP
Alert 3 of 3
Critical Alert Code:
29
AC reports:
Over Temperature
Protection
10/12/09
5:52 PM
indoor
settings
•
indoor
humidity
January 26, 2010 12:00 AM
alerts
service info
next alert
HOMEzonesprograms
Press the Alert Icon on Home Screen (if program is
running) to display system or device active alerts
If program is not running, press Alert Icon on Dashboard
Screen to display alerts.
• A red Critical Alert indicates that service is required
for a major system component as soon as possible
• A yellow Service Alert indicates required
maintenance (lter replacement, humidier pad
replacement, UV light replacement, PureAir™ Air
Purication System servicing and Maintenance)
• Next Alert scrolls through available system alerts
• Remind Later allows a Service Alert to be postponed
(1 day, 1 week, 1 month, 3 months or a custom time)
icomfort™ Communicating Control System / Page 6
USER PREFERENCES
User Setting Default
Setting
Time and Date Time/date elements
Daylight Saving Time Enabled Enabled, Disabled
Circulate Fan ON Time 35%15 to 45% (in 1%
Dealer Name These may
Dealer Address
Dealer Phone
Dealer Email
show installer
input data but
owner can
change
Dealer Website
Language Displayed English English
Temperature Display
°FFahrenheit (°F) or
Scale
Clock Format 12 Hour12 Hour, 24 Hour
Screen Lock-out Unlocked Unlocked, Partially
Backlight Setting Always On Power Save, Always
Backlight Intensity 100%20 to 100% (in 20%
Outdoor Temp Display Disabled Disabled, Enabled
Indoor Humidity Display Enabled Disabled, Enabled
Filter 1 Timer Disabled Disabled, 3, 6, 12, 24
Filter 2 Timer Disabled
Humidier Pad Timer Disabled
UV Bulb Timer Disabled
Maintenance Timer Disabled
PureAir Timer Disabled
Variable Settings
screen)
increments)
Keyboard input screen
Celsius (°C)
Locked, Fully Locked
On
increments)
Months or Custom
Time
Page 7
FEATURES
INSTALLER SETUP
SYSTEM DISCOVERY
SYSTEM DISCOVERY IN PROGRESS
tests
Thermostat 1
Use this Thermostat?
press here
PLEHputes
After power is applied to the thermostat for the rst
time, it checks the system for installed communicating
devices, the “System Discovery” progress screen is
displayed on the thermostat; followed by the “Use this thermostat?” screen.
critical alert
Active
Critical Alert Code: 31
AIR HANDLER reports:
Lost Communication with
THERMOSTAT −
Latest occurrence: 8/23/09
1:57 PM
press for more
close
During the setup process, alerts may be displayed to
inform the installer of any information that affects the
setup process.
SETUP - SYSTEM SETTINGS
PLEHputes
system settings
Time and Date
Daylight Saving
Time
Circulate Fan ON
time
Dealer Name
Dealer Address
Dealer Phone
Number
Dealer Email
To view/edit a setting,
highlight it, then press edit.
Current Value:
(35%)
edit
back
next step
Use the up / down arrows to scroll through available
settings. Right side of screen displays the current value
of each setting.
Installer System Settings and Default Setting
System
Setting
Range /
Condition
Default
Setting
Modify
with
Time and Date Time and Date Screen and arrow buttons
(see example)
Daylight Saving
Time
Circulate Fan ON
Enabled/
EnabledUp / Down
Disabled
15 to 45% 35%
Arrows
Time
Dealer Namealpha-
Dealer Address- - -
Dealer Phone
numeric
characters
LennoxKeyboard
tool
1-800-9-LENNOX
Number
Dealer Email- - -
Dealer Websitewww.lennox.com
Time and Date Screen
PLEHputes
Time and Date
10:19AM
adjust
Oct15 2009
cancel
save
icomfort™ Communicating Control System / Page 7
Page 8
FEATURES
INSTALLER SETTINGS
Add / Remove / Modify Non-Communicating Devices
System Devices
PLEHputes
system devices
HP
XP19−060−230−06
5809K00015
AIR HANDLER
CBX32MV−60
5809K00020
THERMOSTAT
49W95
A109K00139
SYSTEM
Add or Remove
Non−communicating
equipment?
yes
next stepback
Press “yes” to access non-communicating device list
screen
PLEHputes
non−communicating
device list
HUMIDIFIER
DEHUMIDIFIER
UV LIGHT
to adjust a setting, highlight it,
then press edit
Current Value:
(Not Installed)
edit
back
PLEHputes
system devices
HP
XP19−060−230−06
5809K00015
AIR HANDLER
CBX32MV−60
5809K00020
THERMOSTAT
49W95
A109K00139
SYSTEM
to adjust a device, highlight
it, then press edit
edit
back
reset ALL
next step
about
Use up / down arrow buttons to select device. Press edit
button to modify device settings.
Pressing “about” displays equipment information
depending on type (name, model, serial number,
number of stages, cooling btuh, indoor blower cfm
range, software version, outdoor air temp sensor
installed, etc.)
NOTE - “Reset ALL” resets all devices back to original
factory default settings. Each individual device can be
also reset to factory settings on the selected equipment
screen.
Equipment Name - Press “edit” button to change
equipment name, use keyboard tool to change
Use up/down arrow buttons to highlight and modify
non-communicating device
• Outdoor Unit Type (Not Installed, 1 Stage AC, 2 Stage AC)
• Humidier (Not Installed, Bypass (24 VAC), Power (120 VAC), Bypass and Power)
screen will display parameters to set (Outdoor Unit
Capacity, 18 to 60 kBtu in 1 kBtu increments, default is
60 kBtu)
• Air Conditioner
• Equipment Name
• Compressor Short Cycle Delay (60 to 300 sec. in 60 sec. increments, default is 300 sec.)
• Heat Pump
• Equipment Name
• Compressor Short Cycle Delay (60 to 300 sec. in 60 sec. increments, default is 300 sec.)
• Defrost Termination Temp (50 to 100°F in 10°F increments, default is 50°F)
• Compressor Shift Delay (On/Off)
icomfort™ Communicating Control System / Page 8
Page 9
FEATURES
INSTALLER SETUP
System Devices (Continued)
• Furnace:
• Equipment Name
• Heating Airow Control Type - Selections available
if Discharge Air Temperature Sensor is installed
(Fixed cfm, xed Discharge Air Temperature)
With Discharge Air Temperature:
• Low Heating Discharge Air Temperature Available if Discharge Air Temperature Sensor is
installed (110 to 140°F in 5°F increments, default is 120°F)
• High Heating Discharge Air Temperature Available if Discharge Air Temperature Sensor is
installed (120 to 150°F in 5°F increments, default is 135°F)
With Fixed cfm:
• Low Heating Airow (325 to 1280 in 25 cfm
increments
• High Heating Airow (300 to 1805 in 25 cfm
increments
• Low Cooling Airow (300 to 1390 in 25 cfm
increments
• High Cooling Airow (300 to 2190 in 25 cfm
increments
• Airow Prole Cooling:
A. On (50% for 30 sec., 82% for 7.5 min.); Off (50%
for 30 sec.)
B. On (82% for 7.5 min.); Off (No delays)
C. No delays; Off (45 sec. delay)
D. No delays
• Low HP Airow (300 to 1400 cfm in 25 cfm increments)
• High HP Airow (300 to 1400 cfm in 25 cfm increments)
• Continuous Indoor Blower Airow (300 to 1400 in 25
cfm increments)
• Humidication Airow (300 to 1400 cfm in 25 cfm
increments, default is 500 cfm)
• Dehumidication Airow (60 to 80% RH in 1%
increments)
• Heating Indoor Blower Off Delay (60 to 80 sec. in 10
sec. increments default is 90 sec.)
• Heating Indoor Blower On Delay (15 to 45 sec. in 5
sec. increments, default is 45 sec.)
• Cooling Indoor Blower Off Delay (0 to 30 sec. in 2
sec. increments, default is 0 sec.)
• Cooling Indoor Blower On Delay (0 to 10 sec. in 5
sec. increments, default is 2 sec.)
• HP Indoor Blower Off Delay (0 to 60 sec. in 5 sec.
increments, default is 45 sec.)
• HP Indoor Blower On Delay (0 to 30 sec. in 5 sec.
increments, default is 0 sec.)
All furnace default airow settings are dependent on
furnace capacity.
NOTE - Humidication and Dehumication Airow
settings are only viewable if those non-communicating
products are added during setup.
Air Handler
• Equipment Name
• Electric Heating Airow (1560 to 2150 cfm in 5 cfm increments)
• Low Cooling Airow (450 to 2150 cfm in 5 cfm increments)
• High Cooling Airow (450 to 2150 cfm in 5 cfm increments)
• Airow Prole Cooling:
1. No Delays
2. On (No delays); Off (45 sec. delay)
3. On (82% for 7.5 min.); Off (No delays)
4. On (50% for 30 sec., 82% for 7.5 min.); Off (50% for 30 sec.)
• Low HP Airow (450 to 2150 cfm in 5 cfm increments)
• High HP Airow (450 to 2150 cfm in 5 cfm increments)
• Continuous Indoor Blower Airow (450 to 2150 in 10 cfm increments)
• Humidication Airow (450 to 2150 cfm in 5 cfm increments)
• Dehumidication Airow % (60 to 80% RH in 1%
increments)
• Heating Indoor Blower OFF Delay (0 to 10 sec. in 1
sec. increments, default is 10 sec.)
• Heating Indoor Blower ON Delay (0 to 5 sec. in 1
sec. increments, default is 0 sec.)
• Cooling Indoor Blower OFF Delay (0 to 30 sec. in 2
sec. increments, default is 0 sec.)
• Cooling Indoor Blower ON Delay (0 to 10 sec. in 1
sec. increments, default is 2 sec.)
• HP Indoor Blower OFF Delay (0 to 60 sec. in 5 sec.
increments, default is 45 sec.)
• HP Indoor Blower ON Delay (0 to 30 sec. in 5 sec.
increments, default is 0 sec.)
All air handler default airow settings are dependent on
furnace capacity.
icomfort™ Communicating Control System / Page 9
Page 10
FEATURES
INSTALLER SETTINGS
• Thermostat:
• Temp. Reading Calibration (-5 to 5°F, default is 0°F)
• Humidity Reading Calibration (-10 to 10°F, default is 0°F)
• System
• Equipment Name
• Filter 1 Timer Selection (Calendar or Run Time)
• Filter 2 Timer Selection (Calendar or Run Time)
• UV Bulb Timer Selection (Calendar or Run Time)
• Humidier Pad Timer Selection (Calendar or Run Time)
• PureAir Timer Selection (Calendar or Run Time)
• Smooth Setback Recovery (Enabled/Disabled)
• Electric Heat Control Mode (Standard/EvenHeat)
• Gas Heat Control Mode (Staged/Modulating)
• Auto-Changeover Temp. Deadband (3 to 9°F, default is 5°F)
• Max. Heat Setpoint (40 to 90°F, default is 90°F)
• Min. Cool Setpoint (60 to 99°F, default is 60°F)
• Heat Cool Stages Locked In (Enabled/Disabled)
• 1st Stage Differential (0.5 to 3°F, default is 0.5°F)
• 2nd Stage Differential (0.5 to 8°F, default is 1.5°F)
• 3rd Stage Differential (0.5 to 8°F, default is 2°F)
• 4th Stage Differential (0.5 to 8°F, default is 2.5°F)
• 5th Stage Differential (0.5 to 8°F, default is 3°F)
• 6th Stage Differential (0.5 to 8°F, default is 3.5°F)
• Staged Delay Timers (Enabled/Disabled)
• 2nd through 6th Stage Delays (5 to 120 min. in 5 min. increments, default is 20 min.)
• Locked in 2nd Stage HP by Outdoor Temp (off, 40°F, 45°F, 50°F, 55°F)
• Balance Point Control (enabled/disabled)
• Defrost Target Discharge Temp (50 to 60°F in 1°F increments, default is 55°F)
• EvenHeater® Discharge Temp (80 to 130°F in 1°F increments, default is 85°F)
• Dehumidication Control Mode (Display Ony, Basic, Precision)
• Humidication Control Mode (Display Only, Dewpoint Control)
• OK/Humid Boundary (45 to 60°F in 1°F increments,
default is 50°F
NOTE - Depending on type of system (conventional
heating/cooling or heat pump system) not all system
settings will be displayed.
TESTS
A variety of system tests can be performed by the
installer. Press the tests tab, then press start to begin
system testing.
press start button below to begin system testing
start
setuptestsequipmentHELP
select tests to run
TEST ALL
Blower
HP Heat − 1st
Stage
HP Heat − 2nd
Stage
Defrost Now
Cooling − 1st
Stage
Cooling − 2nd
Stage
alertsdiagnostics EXIT
selected tests
select
skip tests
TEST ALL is the default.
You can also test equipment individually. Use up / down arrow buttons to select device.
Then press select, then start on the next screen to test
all or individual equipment.
setuptestsequipmentHELP
select tests to run
TEST ALL
Blower
HP Heat − 1st
Stage
HP Heat − 2nd
Stage
Defrost Now
Cooling − 1st
Stage
Cooling − 2nd
Stage
select
alertsdiagnostics EXIT
selected tests
TEST ALL
startremove
The remove button allows to you remove individual
equipment from the TEST ALL list if you only want to test
certain equipment. Press the start button to begin testing.
CURRENT TEST: Blower
Check Blower Operation
cancel
next
When a test is running, a status screen will show
which test is being run. A Testing Process is Finished
conrmation screen will appear when testing is complete.
NOTE - The tests feature is not available until after setup
has been completed at least once.
icomfort™ Communicating Control System / Page 10
Page 11
FEATURES
INSTALLER SETTINGS
DIAGNOSTICS
Allows installer to run diagnostic tests on any icomfort
enabled product.
select device to run
diagnostics on
HP
XP19−060−230−
06
5809K00015
AIR HANDLER
CBX32MV−60
5809K00020
Use the up/down arrow buttons to highlight and
press select and start to run diagnostics on selected
equipment.
Screen will display “DIAGNOSTICS IN PROGRESS . .”
and will show a list of values and conditions.
run diagnostics on:
select
diagnostics
select type of device to run
diagnostics on
HP
XP19−060−230−
06
5809K00015
AIR HANDLER
CBX32MV−60
5809K00020
HP
Diagnostics
Line Voltage220 volts
24VAC Voltage24 volts
Y1 − OutputOn
PSC Fan RelayClosed
ECM Fan 1On
ECM Fan 2On
Y2 SolenoidOn
run diagnostics on:
remove
diagnostics
HP
start
done
Use the up/down arrow buttons to scroll through the
availbale information.
EQUIPMENT
The equipment tab allows the same equipment setting
adjustments as in the setup tab, see System Devices,
page 4.
Page 12
Visit us at www.lennox.com
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