and function of the conditioned air system controls and instruments for the power unit conditioned air system are
described as follows.
Panel Illumination Lamps (fig. 2-16).
Description. The four panel illumination lamps are hooded filament type lamps. The hoods are adjustable
for directing the illumination on the panel.
Purpose. Illuminates the instrument panel for night operations.
Panel Lights Switch (fig. 2-16).
Description. A two position ON-OFF toggle switch.
Purpose. Energizes and de-energizes the four panel illumination lamps.
Auxiliary Power Switch (fig. 2-16).
Description. A two position toggle switch.
Purpose. Energizes an auxiliary power outlet circuit to prevent operation of the cooled air system and
permit maximum 400
Figure 2-16. Instrument panel (conditioned air system controls).