iComfort Wi-Fi
®
7-Day Programmable Communicating Thermostat
Page 79
Partial iComfort
®
System — iComfort
®
Furnace and Non-Communicating Lennox Brand (conventional) Air
Conditioner
An iComfort
®
as furnace (G71MPP, EL296V, SLP98, SL280)
with a conventional non-communicating Lennox brand air
conditioner.
1. Wiring—See Communicating System and optional
accessories Wiring diagrams.
4-conductor thermostat wire from the iComfort Wi-Fi
®
thermostat to the gas furnace (R, i+, i-, C)
Conventional thermostat wire with 2 to 4 conductors
from the furnace terminal strip to the air conditioner
unit (Y1, C, & on some models, R & Y2)
Wiring as required for accessories
2. Cut option link 2-stage compr (Y1 to Y2, W915) on
furnace control on two-stage Lennox brand conventional
air conditioner units only.
3. After the entire system is wired, power up the system; the
iComfort Wi-Fi
®
thermostat will check the system for
installed communication devices.
4. In the installer setup button, select “Add or Remove
non-communicating equipment“ by using the yes button.
5. Select the Outdoor Unit Type from the device list using the
up/down arrows and press the edit button. Then select
the air conditioner type (1-stage AC or 2-stage AC) and
press the save button.
6. Select the outdoor unit capacity and minimum outdoor unit
capacity (2-stage only). Press save after editing each
setting. Press back when finished to return to the adjust
screen.
7. Use the arrows to select Furnace from system devices
list; press edit. From this Furnace screen you will have
access to the various airflow settings. Set the system air
volumes according the needs of the home. When you
change certain settings, the system will prompt you to
“please view and save all red settings”. Use the arrows to
select the red settings and press edit. Either make
changes or not, but press save either way. The red
settings will go away after pressing save. When all CFM
settings are complete, press the back button. Press next
step to advance to the tests button.
8. Using up/down arrows, select the test options individually
(if so desired, you may choose to TEST ALL) and press
the select button. (If selecting individual tests, repeat until
you have selected all you intend to run.)
9. Press the start button. Confirm the air conditioner unit is
electrically energized and operational. Press done.
10. Exit the installer setup mode by selecting the EXIT button.
TIPS
If the thermostat “System Setting” only shows “heat only“ or “off“ choices and does not offer a choice for “cooling” you
must “Install” the non-communicating air conditioning unit. Select “Add or Remove non-communicating” under the setup
button in the Installer Section. Select “Outdoor Unit Type”, press the edit button and then choose “1 Stage AC” or “2 Stage
AC” and press the save button.
On two-stage air conditioners you must cut the “W915 2 Stage Compr” link on the furnace control.
Partial iComfort
®
System — iComfort
®
Furnace and Non-Communicating Lennox Brand (Conventional) Heat
Pump Unit (Dual-Fuel)
If using a conventional non-communicating heat pump unit in an iComfort
®
dual fuel system then a iComfort
®
Equipment
Interface Module must be used and set up as a communicating heat pump.
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