Lennox iComfort CBX32MV-06 Setup Manual Download

Page: 41 / 43

iComfort Wi-Fi

7-Day Programmable Communicating Thermostat

Page 41

PARTIAL ICOMFORT™ SYSTEMS

ICOMFORT FURNACE AND NON-COMMUNICATING LENNOX (CONVENTIONAL) AIR CONDITIONER

An iComfort-enabled gas furnace (G71MPP, EL296V, SLP98, SL280) with a
conventional non-communicating air conditioner.

Wiring

—See

Communicating Indoor / Non- Communicating Outdoor

System Wiring

diagram on on page 35 and

Optional Accessories Wiring

on page

37 for any accessories being installed with the system.

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 AC 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 AC 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 AC 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 AC 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.

ICOMFORTFURNACE AND NON-COMMUNICATING (CONVENTIONAL) HP UNIT (DUAL-FUEL)

NOTE - DO NOT use a conventional non-communicating heat pump unit in an iComfort dual fuel system.

TIPS

A conventional thermostat capable of controlling a dual fuel system, like the ComfortSense

7000, must be selected for this type of application.

ICOMFORT AIR HANDLER AND NON-COMMUNICATING LENNOX (CONVENTIONAL) AIR CONDITIONER

An iComfort air handler (CBX32MV or CBX40UHV) with a conventional
non-communicating AC unit.

NOTE - 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.

Wiring

—see

Communicating Indoor / Non- Communicating Outdoor

System Wiring

diagram on page 35 and

Optional Accessories Wiring

page 37 for any accessories being installed with the system.

4-conductor thermostat wire from the iComfort Wi-Fi

thermostat to the

air handler (R, i+, i-, C)

iComfort air handler to conventional AC (5 – 8 wires). (Y1, Y2, C, R,
W1,W2)

Wiring as required for accessories

3. On 2-stage AC, cut the “W915 2 Stage Compr” on-board clippable link.

4. On air handler control, remove jumper between W1 & W2 for two-stage electric

heat only.

5. After the entire system is wired, power up the system; the iComfort Wi-Fi

thermostat will check the system for installed communication devices.

6. In the installer setup button, select “Add or Remove non-communicating

equipment“ by using the

yes

button.

7. Select the “Outdoor Unit Type” from the device list using the up/down arrows

and press the

edit

button. Then select the AC type (1-stage AC or 2-stage AC)

and press the

save

button.

8. On the thermostat, go past the “Add or remove non-communicating

equipment” to the “To adjust a setting” screen.

9. 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.

10. 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 have been detected and are operational. Press

done

11. Exit the installer setup mode by selecting the

EXIT

button.

TIPS

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 38, or for complete detail, see the Air Handler installation instructions. Reconfigure the iComfort system by entering
the installer program and selecting the

setup

button and following the prompts.

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 air handler control.