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NetworkAIR FM DX 60 Hz Operation, Maintenance, and Troubleshooting
29
Module Control
The Module Control options are configured and tuned during the commissioning of each Module.
Caution: The settings in the Module Control menu are defined at the factory. Changing
the settings incorrectly can cause serious malfunctions and damage to your System. Only
qualified service personnel should make changes to these settings.
Calibrate airflow manually
Note: The System must be on and the blowers must be operating to calibrate the airflow
manually. If either condition does not exist, the display will prompt you to turn on the
System and blowers.
Nom Coil DP. Set the nominal coil differential pressure.
Blower Spd. Adjust the frequency of the blower.
Coil DP. Displays the coil differential pressure. The coil differential pressure changes as the blower
frequency is adjusted. The Std Dry value in the table below gives the recommended coil differential
pressure for the FM DX Precision Air Conditioner.
Calibrate airflow automatically
Nom Coil DP. Set the nominal coil differential pressure.
Start/Abort. Start the automatic calibration. If calibration is in progress, this line displays: Abort.
Coil DP. Displays the coil differential pressure. The coil differential pressure changes as the blower
frequency is adjusted. When the Coil DP values match the Nom Coil DP value, the System will
display Calibration Complete. If the System cannot align the two values, the System will display
Calibration Failed after two minutes. You must manually calibrate the airflow if automatic
calibration fails.
Coil Differential Pressure Values
Downflow DX only
0.32
Downflow Multi/Econ
* Indicates Standard Dry nominal point
Upflow DX only
Coil dP (in WC)
SCFM 7600
0.43
0.59
7100
Coil dP (in WC)
SCFM
Coil dP (in WC)
SCFM 7600
0.36
8100
0.49
0.67
7600
8100
0.41
8600*
0.55
0.76
8100*
8600*
0.46
9100
0.62
0.86
8600
9100