Air Handler And Air Conditioner - Lennox iComfort Wi-Fi Setup Manual

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Complete iComfort Systems — Air Handler and Air Conditioner
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An iComfort air handler (CBX32MV or CBX40UHV) with an
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iComfort air conditioner (XC17, XC21 or XC25 only).
IMPORTANT! Be sure to configure the air handler control so
that heat strips (if used) information will be detected by the
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iComfort thermostat. This must be done 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
C)
• 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.
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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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An outdoor temperature sensor is provided in an iComfort
the 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.
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Turn the Indoor Humidity Display on and off in a similar manner as above.
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iComfort Wi-Fi
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air conditioner (R, i+, i-,
TIPS
Page 77
5. On the thermostat, go past the "Add or remove
non-communicating equipment" to the "To adjust a
setting" screen.
6. Use the arrows to select Air Handler from system devices
list; 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 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.
7. Test the system operation and confirm the system is
electrically energized and operational. Particularly, test
the heat strips (when used) to insure the auxiliary stages
operate as designed. Press done.
8. 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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air conditioning unit. To display the outdoor temperature on
7-Day Programmable Communicating Thermostat