Lennox iComfort Wi-Fi Setup Manual page 81

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Partial iComfort System — iComfort
Pump Unit
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An iComfort air handler (CBX32MV or CBX40UHV) with a
conventional non-communicating Lennox brand heat pump
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)
• Conventional thermostat wire with 5 to 6 conductors
from iComfort™ air handler to conventional HP (5 – 8
wires). (Y1, C, R, W1, O, and on some models Y2)
• Wiring as required for accessories
3. On air handler control:
• When matched with conventional Lennox brand
2­stage heat pump, cut the Y1­Y2 2 stage comp
on­board clippable link.
• Remove jumper between W1 and W2 for two-stage
electric heat only.
• Cut on-board R-O clippable link.
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. In the installer setup button, select Add or Remove
non-communicating equipment by using the yes button.
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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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If an optional outdoor temperature sensor has been installed, you may display the outdoor temperature on the home
screen of the thermostat. To 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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iComfort Wi-Fi
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Air Handler and Non-Communicating Lennox Brand (conventional) Heat
6. Select the Outdoor Unit Type from the device list using the
7. On the thermostat, go past the Add or remove
8. Select Balance Point Control (if outdoor sensor is
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9. Complete Balance Point Control by editing the High and
10. Use the arrows to select Air Handler from system devices
11. Test the system operation and confirm the system is
12. Exit the installer setup mode by selecting the EXIT button.
TIPS
Page 81
up/down arrows and press the edit button. Then select
the heat pump type (1-stage HP or 2-stage HP) and press
the save button.
non-communicating devices to the To adjust a setting
screen. Select System from the device list using the
up/down arrows and press the edit button.
installed) and press edit. Use the down arrow to select
Enabled and press save. High and Low Balance Points
will appear in red.
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.
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 all CFM
settings are complete, press the back button. Address
any red settings as described in steps 8 and 9. Press next
step to advance to the tests button.
electrically energized and operational. Particularly, test
the heat strips (when used) to insure the auxiliary stages
operate as designed. Press done.
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system by entering the installer program and selecting
7-Day Programmable Communicating Thermostat