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icomfort Wi-Fit 7−Day Programmable Communicating Thermostat
Page 69
icomfortt enabled Air Handler & conventional non−communicating 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.
2. WiringĊsee Communicating Indoor / Non−Communicating Out-
door System Wiring diagram on Page 59 and Optional Accessories
Wiring (Page 61) for any accessories being installed with the system.
D 4−conductor thermostat wire from the icomfort Wi-Fit thermostat
to the air handler (R, i+, i−, C)
D icomfort air handler to conventional AC (5 – 8 wires). (Y1, Y2, C,
R, W1,W2)
D Wiring as required for accessories
3. On 2−stage AC, cut the W915 2 Stage Compr" onboard 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-
Fit thermostat will check the system for installed communication de-
vices.
6. In the installer setup button, select Add or Remove non−communicat-
ing 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 de-
vices" to the To adjust a setting" screen. Select the System" from the
device list using the up/down arrows and press the edit button
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 ener-
gized 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
S 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 64,
or for complete detail, see the Air Handler installation instructions. Re-
configure the icomfort system by entering the installer program and se-
lecting the setup button and following the prompts.
S 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.
S On two−stage Air Conditioners you must cut the W915 2 Stage Compr"
Link on the air handler control.