Carrier bryant Evolution Connex Control SYSTXBBECC01-C Installation Instructions Manual page 20

"Searching for outdoor unit." If it is not corrected, the Evolution Connex
Control will go into its DEMO operating mode. If a control is operating
in Demo mode and you wish to install it with equipment, navigate to the
Installer menu and perform a re-install to re-learn the equipment.
TIP: Troubleshoot ABCD communication bus problems by removing all
but the indoor unit and system control from the ABCD bus circuit. As
each bus segment is verified, connect the next component and continue to
troubleshoot as required.
5.2. Searching for Outdoor Unit
The Evolution Connex Control will then proceed to communicate with
the outdoor unit by displaying "Searching for outdoor unit". This
includes Evolution small packaged products (SPP) and Evolution System
geothermal units.
NOTE: If the outdoor unit cannot be found, the control will display
"Outdoor unit not found".
• Select the appropriate unit installed; then, touch NEXT.
AC1Stage —
*
AC2Stage —
*
HP1Stage —
*
HP2Stage —
None —
*. Network Interference Module (NIM) may be required for these
selections to be displayed.
NOTE: For some communicating products (SPP and geothermal
package units), the selection screen may not be needed and may not
appear.
1-stage air conditioner
2-stage air conditioner
1-stage heat pump
2-stage heat pump
No outdoor unit installed
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