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
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
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
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