DISTRIBUTION SYSTEM
COCKPIT DISTRIBUTION
SYSTEM
A single duct routes conditioned bleed-air
from the tailcone into the cockpit where it is
distributed through sidewall diffusers and
under glareshield outlets (Figure 11-7).
Va r i a b l e o p e n i n g d i r e c t i o n a l o u t l e t s
(WEMAC) are located on the cockpit head-
liner, one on each side, and distribute ECU con-
ditioned cold air to each crew member (Figure
11-8). The outlets can be adjusted to control
the direction and the volume of airflow.
CABIN DISTRIBUTION SYSTEM
A separate duct from the ECU routes condi-
tioned air to the cabin (Figure 11-1).
The distribution duct for the cabin branches into
two ducts within the tailcone area to deliver
conditioned bleed-air to both sides of the cabin
(Figure 11-7). Inside the cabin these ducts
branch again to route air down to the cabin
floor diffusers and up to cabin overhead dif-
fusers on each side (Figure 11-9). Duct split-
ter mechanisms are located at the duct branch
points on both sides of the cabin. The splitters
are thermal/mechanical devices that automat-
ically divert more air to the floor ducts as the
temperature in the ducts becomes hotter.
Conditioned cold air, directly from the ECU,
is also distributed to the cabin via overhead
mounted variable opening outlets, located
above each passenger seat (Figure 11-10).
11-11
FOR TRAINING PURPOSES ONLY
L E A R J E T 4 5
P I L O T T R A I N I N G M A N U A L
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Figure 11-8. Cockpit Overhead WEMACs
Figure 11-9. Cabin Air Distribution
Figure 11-10. Cabin Air Distribution
WEMACs