Set Up Module Control
The Module Control options are configured and tuned during the commissioning of each Module.
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
The System must be on and the blowers operating to calibrate the airflow manually. If either condition does not exist, the display will prompt you to turn on the System and
Note 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 at the bottom of the screen. As the blower frequency is adjusted, the coil differential pressure will change. The Std Dry column in the table below gives the recommended coil differential pressure for each Precision Air Conditioner model.
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| Coil Differential Pressure Values |
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Model | Std Dry | Min | Max | Alarm Clear | Airflow Alarm |
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IR 40 CA | 0.44 | 0.34 | 0.54 | 0.24 | 0.20 |
All values are displayed in inches water column ("WC)
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 at the bottom of the screen. As the blower frequency is adjusted, the coil differential pressure will change. When the Coil DP value matches 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.
NetworkAIR IR Operation, Maintenance, and Troubleshooting | 17 |
