AAON Orion VCCX2 - Page 90

90
VCCX2 Controller Technical Guide
If the controller is congured to have any of the above air ow
sensors, but the controller does not detect that the sensor is
connected, then the applicable alarm will occur. If the sensor
is properly detected after the unit has alarmed, the alarm will
be cleared.
Missing Expansion Module Alarm
Preheat-X Board Missing
EM1 Expansion Missing
RSM Modules #1 - #4 Missing
Reheat Board Missing
ModGas Board Missing
12 Relay Board Missing
If the controller is congured to have any of the above Expansion
Boards (Modules), but the controller does not detect that board,
then the applicable alarm will occur. If the board is properly
detected after the unit has alarmed, the alarm will be cleared.
SEQUENCE OF OPERATIONS
Alarm Detection and Sensor Failure Alarms