Forward Overhead Panel 800/900
Recirculation (RECIRC) FAN Switches
OFF -
Fan signalled off.
AUTO –
In-flight –
- The left recirculation fan operates if both packs are
operating unless either PACK switch is in HIGH.
- The right recirculation fan operates if both packs are
operating unless both PACK switches are in HIGH.
On the ground –
- The left recirculation fan operates unless both PACK
switches are in HIGH.
- The right recirculation fan operates even if both PACK
switches are in HIGH.