Learjet 20 Series Pilot Training Manual page 171

LH ENGINE
BLEED AIR
WING ANTI-ICE
WINDSHIELD HEAT
ANTI-ICE
(IF INSTALLED) PRESSURIZATION
JET PUMP
HYDRAULIC
RESERVOIR PRESSURE
LEGEND
BLEED AIR
REGULATED BLEED AIR
RH ENGINE
BLEED AIR
Figure 9-1. Pneumatic System—SNs 23-003 through 24-349 and 25-003 through 25-226
LEARJET 20 SERIES PILOT TRAINING MANUAL
ENGINE
FRONT
FRAME
HEAT
CONTROL VALVE
✽
✽ ✽
ENGINE
FRONT
FRAME
HT
FOR TRAINING PURPOSES ONLY
ON
AIR
BLEED
✽
OFF
LH ENGINE
BLEED-AIR
SHUTOFF VALVE
FLOW
TO CABIN
ON
AIR
BLEED
OFF
BLEED-AIR
SHUTOFF
VALVE
RH
ENGINE
✽
BLEED-AIR SHUTOFF VALVES ARE INSTALLED ON
23-003 THROUGH 23-029 UNLESS MODIFIED BY SK140.
✽ ✽
SN 24-297 THROUGH -349 AND 25-135 AND -181
THROUGH -226
FlightSafety
international
9-3