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Purpose and Learning Objectives. The purpose of this presentation is to provide industry professionals with an overview of the basic concepts and relationships between airflow and pressure, and how these concepts are affected by various outside factors in regard to fans.
The cabin heat switch starts the fuel pump, opens the main fuel supply solenoid, and turns on the combustion air fan, as well as the ventilating air fan if the aircraft is on the ground. When the combustion air fan builds pressure, it allows the ignition unit to start.
All I-Series heaters are TSO C20(A-1) approved. Please refer to the appropriate aircraft Type Certificate (TC), Supplemental Type Certificate (STC), aircraft equipment list, maintenance manuals, and/or Log Book entries for determination.
Cabin Heating and cooling systems provide conditioned air for comfortable operations during various weather conditions. Cabin heat is the system used to condition the air for the pilot and passenger's comfort during colder months and higher altitudes.
The waste water drain-system discharges overboard the waste water from the galley sinks and the lavatory washbasins through heated drain masts. The control and indication of the waste tanks (and potable water tanks) inside the cabin is done via the FAP (Flight Attendant Panel).
The elevated temperature of the ACM compressed air facilitates an easy exchange of heat energy to the ram air. The cooled system air, still under pressure from the continuous system air flow and the ACM compressor, exits the secondary heat exchanger. It is directed into the turbine side of the ACM.
a. Air Turbine Compressor. The cabin and flight compartments are pressur-ized by using two air turbine centrifugal compres-sors (turbo-compressors). Each compressor consists of a turbine section and a compressor section as shown in figure 1-26.
