Forward Overhead Panel 700/800/900
| Display Selector |
| APU |
OFF – Normal position when the APU is not running.
- Positioning switch to OFF with the APU running trips the
APU generator off the bus(es), if connected, and closes the
APU bleed air valve. The APU continues to run for a 60
second cooling period.
- The APU air inlet door automatically closes after shutdown.
Operate the APU for one full minute with no bleed air load prior to
shutdown. This cooling period is recommended to extend the
service life of the APU. When the APU switch is moved to OFF,
this time delay is met automatically.
Moving the APU switch to OFF trips the APU generator, closes the
APU bleed air valve and extinguishes the APU GEN OFF BUS
light. Shutdown occurs automatically after 60 seconds. When the
APU speed decreases sufficiently during shutdown, the fuel valve
and inlet door close.
(Move the APU Switch to START and click with the mouse)
shutdown. This cooling period is recommended to extend the
service life of the APU. When the APU switch is moved to OFF,
this time delay is met automatically.
Moving the APU switch to OFF trips the APU generator, closes the
APU bleed air valve and extinguishes the APU GEN OFF BUS
light. Shutdown occurs automatically after 60 seconds. When the
APU speed decreases sufficiently during shutdown, the fuel valve
and inlet door close.
(Move the APU Switch to START and click with the mouse)
