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®
ICOMFORT WI-FI
THERMOSTAT - TECHNICAL DESCRIPTION AND FEATURES
®
The 24VAC iComfort Wi-Fi
thermostat is an electronic communicating, color
display touchscreen and 7-day programmable thermostat. It stores system
parameters and settings in non-volatile memory (i.e., it retains data when electrical
power fails or is turned off).
®
The iComfort Wi-Fi
thermostat can connect to online services via the Internet
through the homeowner's Wi-Fi access point. 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.
Refer to page 35 for information on making connections to the thermostat.
The thermostat also supports:
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three languages (English, French, Spanish),
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air conditioning units 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),
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variable-capacity /
multiple-stage
(gas/electric/heat pump/ac)
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dual-fuel capable (icomfort™-enabled HP only) with two balance points.
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Indoor Air Quality with time based notification of consumables including
media filters, UVC bulbs, humidifier pads, and PureAirt system catalyst
service / replacement,
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Iharmony™ Zoning System (2 - 4 zones)
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Lennox Equipment Interface Module (provides icomfort Wi-FI
non-communicating indoor unit,
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humidification measurement and control.
IMPORTANT
Connections to non-communicating outdoor units and accessories are described in
the Quick-Start Installation guide. Wiring diagrams are also provided beginning on
page 35 of this manual.
ADDITIONAL FEATURE SUPPORTS
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Dew point adjustment control
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Humiditrol
Enhanced De-humidification Accessory (EDA)
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Multiple-stage HVAC systems
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Variable capacity (modulating indoor and outdoor units)
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Equipment maintenance reminders
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Autochangeover mode -- Permits control of heating, cooling, humidification,
and De-humidification without user involvement
OUTDOOR TEMPERATURE SENSOR
All Lennox branded communicating outdoor units contain a built-in outdoor
temperature sensor.
INSTALLATION AND SETUP
COMMUNICATION ERROR SCREEN
During initial thermostat start-up if the following screen appears (see figure 1), this
will indicate that the thermostat has been incorrectly wired or has shorted wires.
Turn power off to the system and verify that all wiring is correct.
Figure 1. Communication Error Screen
507152-01
heat/cool,
universal
compatibility
®
ADJUSTING SYSTEM SETTING
SET TIME AND DATE
Use the arrows to select Time and Date; press edit to proceed to the "Set current
time and date" screen.
system settings
Time and Date
Daylight Saving Time
Circulate Fan ON Time
System Name
Dealer Number
Dealer Name
Dealer Address
Dealer Phone
Dealer Email
9:39 am Aug 15, 2012
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Figure 2. View/Edit Time and Date
When "Time and Date" screen appears, enter the correct date as follows:
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Use the left and right arrows to change the month and year.
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Touch a day of the month to select it.
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Press on the hour or minute; up down arrows appear to allow change.
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Touch the am/pm field to toggle it between am and pm.
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When the correct date and time is set, press save to save settings and return
to previous settings screen.
Touch next to continue to next screen.
system settings
January 2012
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Figure 3. Set Current Time and Date
CIRCULATE FAN ON TIME SETTING
NOTE - If the circulate fan mode is on, a timer is set to measure all the time that the
fan is blowing, regardless if it is running to deliver heating or cooling or just for
circulation.
"Circulate" is enabled on the user's home screen or system settings page. It keeps
air circulating from 15% to 50% percent of time. The following settings approximate
how long the fan will run at these typical settings:
15% (9 minutes fan run time per hour)
25% (15 minutes fan run time per hour)
35% (21 minutes fan run time per hour)
45% (27 minutes fan run time per hour).
Page 2
To adjust a setting, highlight it,
then press edit
current value:
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7/2013
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