Carrier Infinity system controller info.
Homeowner manual highlights.
Keyboard Lock-Out
You can lock the Infinity™ Control buttons to help avoid inadvertent changes to your settings. Keyboard lock-out can ONLY be activated from the main screen. To do so, simultaneously press the ZONE and FAN buttons for two seconds. Keyboard lock-out will be indicated by a graphic lock on the screen. To unlock the control, simultaneously press the ZONE and FAN buttons for two seconds.
Service manual:
https://www.manualslib.com/manual/795515/Carrier-Infinity-Control.html#manual
INSTALL / SERVICE MENUS
The "INSTALL / SERVICE" menus contain a set of vital
information. This information enables the Installer or Service
person to view a summary of what has been installed, etc. This
information is not covered in the Owner's Manual.
To enter INSTALL / SERVICE menus, press and hold the
ADVANCED button for at least ten seconds. The following menu
will appear (See Fig. 22)
NOTE: The INSTALL / SERVICE menu will automatically exit
after 60 minutes of no push button activity.
EQUIPMENT SUMMARY: Shows all equipment recognized by
and attached to the system.
INSTALL: Used when adding, changing out, or un- -installing
equipment.
SETUP: Used to view or modify equipment settings.
CHECKOUT: Allows testing of equipment operation
SERVICE: Used to view operation and fault history of equipment
and enter dealer name/phone number for display.