Forward Overhead Panel 800/900
Air Conditioning PACK Switch
OFF –
AUTO –
- With both packs operating, each pack regulates to low flow.
- With one pack operating, the operating pack regulates to
high flow in flight with the flaps up.
- When operating one pack from the APU (both engine
BLEED air switches OFF), regulates to high flow.
HIGH –
- Pack regulates to high flow.
- Provides maximum flow rate on the ground with the APU
BLEED air switch ON.