Lennox iComfort Wi-Fi Setup Manual page 78

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Complete iComfort Systems — Air Handler and Heat Pump Unit
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An iComfort air handler (CBX32MV or CBX40UHV) with an
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iComfort heat pump (XP17, XP17N, XP21, XP21N or XP25)
unit.
IMPORTANT! Be sure to set up the air handler control for heat
strips (if used) prior to powering up the system and thermostat.
1. Configure air handler control (AHC) for auxiliary heat
strips if used.
2. Wiring—See Communicating System and optional
accessories Wiring diagrams.
• 4-conductor thermostat wire from the iComfort Wi-Fi
thermostat to the air handler (R, i+, i-, C)
• 4-conductor thermostat wire from the air handler
terminal strip to the iComfort
• Wiring as required for accessories
3. DO NOT cut any option link on air handler control.
4. After the entire system is wired, power up the system; the
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iComfort Wi-Fi thermostat will check the system for
installed communication devices.
5. On the thermostat, go past the "Add or remove
non-communicating equipment" to the "To adjust a
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If the thermostat "System Setting" does not offer a choice for emerg. heat and or the electric heat will not function; the
electric heat has not been configured. Configure the electric heat as described on Page 74, or for complete detail, see
the Air Handler installation instructions. Reconfigure the iComfort
the setup button and following the prompts.
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High & low balance points are enabled and adjusted under the installer section of the thermostat. In the equipment button
select "System" and press edit. Scroll down to "Balance Point Control" and press edit and select Enabled and then save.
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An outdoor temperature sensor is provided in an iComfort
home screen of the thermostat, you must turn on (or off) the "Outdoor Temp Display". From the Home screen, press press
for more area and select the HELP icon. Press the user preferences box and scroll down to "Outdoor Temp Display".
Press the modify button and use the up/down arrows to select On (or Off) and then press the save button. Press done
to return to the Home screen.
507343-01
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heat pump (R, i+, i-, C)
TIPS
Page 78
setting" screen. Select "System" from the device list using
the up/down arrows and press the edit button
6. Select Balance Point Control and press edit. Use the
down arrow to select Enabled and press save. High and
Low Balance Points will appear in red.
7. Complete Balance Point Control by editing the High and
Low Balance Points. It is not necessary to change the
defaults, but you must save each setting. The red settings
will go away after pressing save. Press the back button
to return to the adjust screen.
8. Use the arrows to select air handler from system devices
list and press edit. From this air handler screen you will
have access to the various airflow settings. Set the
system air volumes according the needs of the home.
When all CFM settings are complete, press the back
button. Address any red settings as described in steps 6
and 7. Press next step to advance to the tests button.
9. Test the system operation and confirm the system is
electrically energized and operational. Particularly, test
the heat strips (when used) to ensure the auxiliary stages
operate as designed. Press done.
10. Exit the installer setup mode by selecting the EXIT button.
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system by entering the installer program and selecting
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heat pump unit. To display the outdoor temperature on the