Pilot’s Manual
PM-126A VI-1
TABLE OF CONTENTS
Bleed Air Supply ....................................................................................... 6-1
BLEED Air Switches.............................................................................. 6-1
HP Shutoff Valves .................................................................................. 6-2
Pylon Overheat....................................................................................... 6-2
Tailcone Leak Detection ........................................................................ 6-2
Bleed Air System Schematic (Figure 6-1) ........................................... 6-3
Anti-Ice Systems ........................................................................................ 6-4
Ice Detector System ............................................................................... 6-4
Wing Inspection Light........................................................................... 6-5
Engine and Nacelle Inlet Anti-Ice ....................................................... 6-5
Wing/Stab Anti-Ice System.................................................................. 6-6
Wing/Stab Anti-Ice System Schematic (Figure 6-2)...................... 6-9
Windshield Defog and Ice Protection ............................................... 6-10
Windshield Anti-Ice Schematic (Figure 6-3)................................. 6-11
Baggage Compartment Heating System.............................................. 6-12
Environmental Control System (ECS) .................................................. 6-13
ECS Controller...................................................................................... 6-13
ECS Shutoff Valve ................................................................................ 6-13
Environmental Control Unit (ECU) or Pack .................................... 6-13
Precooler and Heat Exchangers ..................................................... 6-13
Air Cycle Machine (ACM) .............................................................. 6-14
ACM Bypass Valve........................................................................... 6-14
Low Limit Temperature Sensor...................................................... 6-14
Pack Overtemp Sensor .................................................................... 6-14
Air Cycle Machine Controls ........................................................... 6-15
Air Cycle Machine System Schematic (Figure 6-4) ..................... 6-15
Temperature Control System ............................................................. 6-16
Temperature Control Valves ........................................................... 6-17
MANUAL TEMP Switch................................................................. 6-17
Crew and Cabin COLD-HOT Selectors ........................................ 6-17
Temperature Control Schematic (Figure 6-5) ............................... 6-18
Air Distribution.................................................................................... 6-19
Cockpit/Cabin Air Distribution Schematic (Figure 6-6) ............ 6-20
SECTION VI
ANTI-ICE &
ENVIRONMENTAL
Pilot’s Manual
VI-2 PM-126A
TABLE OF CONTENTS (Cont)
Oxygen System........................................................................................ 6-21
Oxygen Storage and Pressure Regulation ....................................... 6-21
Oxygen System Cockpit Controls ..................................................... 6-22
Oxygen System Schematic (Figure 6-7)............................................ 6-24
Passenger Masks.................................................................................. 6-25
Passenger Mask (Figure 6-8) .......................................................... 6-25
Crew Masks.......................................................................................... 6-26
Crew Masks (EROS) (Figure 6-9)................................................... 6-26
Crew Masks (Puritan-Bennett) (Figure 6-10) ............................... 6-27
Pressurization System ............................................................................ 6-28
Cabin Pressure Control System (CPCS) ........................................... 6-28
Ground Mode................................................................................... 6-28
Cabin Pressure Controller (CPC)................................................... 6-28
Emergency Pressurization.................................................................. 6-29
Pressurization Controls and Indicators............................................ 6-30
Cabin Pressurization Control Display .......................................... 6-30
LDG ALT Knob ................................................................................ 6-30
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