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Troubleshooting
CNT-SVX07C-EN 67
Normal
operation
The controller opens and closes the outdoor air damper based on the controller’s occu-
pancy mode and fan status. Normally, the outdoor air damper is open during occupied
mode when the fan is running and closed during unoccupied mode. (See “Modulating
outdoor/return air dampers” on page 43.
Unit
configuration
The controller must be properly configured based on the actual installed end devices and
application. If the unit configuration does not match the actual end device, the outdoor air
damper may not work correctly.
Manual output test The controller includes a manual output test sequence you can use to verify output oper-
ation and associated output wiring. However, based on the current step in the test
sequence, the outdoor air damper may be open. Refer to the “Manual output test” on
page 52.
Table 22. Outdoor air damper remains open (Continued)
Probable cause Explanation