Air Cond & Ventilation System

Pack valve functions are:
Air pressure control only.
Shut off, pressure control and hence flow control.
Shut off, flow control, and temperature control.
Packs push-button ON means that:
Pack valve is fully open in all the cases.
Pack valve is opened if the opening conditions are met or encountered.
Pack valve regulates pressure and airflow in all the cases.
 
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