Siemens BACNET 125-5037 - Manual (Page 42)

Troubleshooting
32 Siemens Building Technologies, Inc.
4. Box sizing information may be incorrect. Check the values of the following points and
correct as needed:
• DUCT AREA
• FLOW COEFF
• CLG FLOW MIN
• CLG FLOW MAX
5. Motor setup information may be incorrect. Check the values of the following points and
correct as needed:
• MTR SETUP
• MTR1 TIMING
• DMPR ROT ANG
6. The box may not have been balanced correctly. Contact your local Siemens Building
Technologies Representative.
7. The air velocity sensor may need calibration. Set CAL AIR to YES to run the calibration
sequence. When CAL AIR returns to NO, indicating that the sequence is finished, run the
checkout procedure again to see whether the problem has been corrected.
Controller could not reach CLG FLOW MAX or above—CHK STATUS = 16
1. Check for the problems described immediately above for CLG FLOW MIN.
2. The box may be starved for air, either because the central air-handling unit is off or
because of low duct static.