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Trane VAV-UCM 4.2 - Diagnostic Log and Table

Trane VAV-UCM 4.2
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VAV-SVX01C-EN 59
Troubleshooting
Diagnostic Log
The Diagnostic Log reports diagnostic and informational modes/items that are not in the unit’s
normal operation.
Some of the items reported (see Figure 35, p. 59) are listed to aid in understanding current
operation. Reported items are: 1) Timed Override Exists, 2) Cancel Timed Override, 3) Auxiliary
Temperature Sensor Not Present, 4) Unoccupied Request from Zone Sensor ** Function, 5) Max
Flow Request from Zone Sensor * Function, 6) Calibration in Progress, and 7) Pressure Dependent
Operation.
Figure 34. Diagnostic log
Figure 35. Items reported

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