21-CONTENTS
GUN Page 9 May 28/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
CHAPTER 21 - AIR CONDITIONING
TABLE OF CONTENTS
_________________
Chapter Section
Subject_______ Subject ____ Effectivity_______ Page ___________
SUPPLEMENTAL HEATING SYSTEM 21-45-00
Description and Operation 1 ALL General 1 Component Details 1
Heater - Shoulder Air Supply 1 Heaters - Foot Electric 1 Surface Operation 1 Adjustment/Test 501 ALL System Test - Supplemental 501 Heating System HEATER - SHOULDER AIR SUPPLY 21-45-02 Removal/Installation 401 ALL HEATERS - FOOT ELECTRIC SURFACE 21-45-01 Removal/Installation 401 ALL
COOLING 21-50-00
_______
21-CONTENTS
GUN Page 10 May 28/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757 MAINTENANCE MANUAL
CHAPTER 21 - AIR CONDITIONING TABLE OF CONTENTS
_________________ Chapter
Section
Subject_______ Subject_______ Page____
COOLING PACK SYSTEM 21-51-00
Description and Operation 1
General 1
Component Details 4
Air Cycle Machine 15
Altitude Switches 31
Automatic-Pack-Temperature 28
Controller
Cabin Air Supply Check Valve 34
Compressor Outlet Overheat 33
Switch
Compressor Outlet 33
Temperature Sensor
Condenser 19
Flow Control and Shutoff 4
Valve
Flow Control Card 34
Low Limit Control Valve 21
Pack Outlet Overheat Switch 33
Pack Temperature Sensor 31
Plenum/Diffuser Assembly 15
Primary Heat Exchanger 13
Reheater 17
Secondary Heat Exchanger 15
Split-Duct Water Separator 21
Standby-Pack-Temperature 28
Controller
Temperature Control Valve 25
Water Extractor 19
Operation 35
BITE 49
Control 54
Functional Description 35
Component Location 101
Component Index
Component Location
EffectivityALL
ALL
21-CONTENTS
GUN Page 11 May 28/00
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 757 MAINTENANCE MANUAL
CHAPTER 21 - AIR CONDITIONING
TABLE OF CONTENTS_________________
Chapter
Section
Subject Subject_______ _______ Page____ Effectivity___________
Adjustment/Test 501 ALL
Heat Exchanger Test 532
Operational Test - Pack High 513
Flow Inhibit
Operational Test - Pack 509
Temperature Control
Pack Temperature Sensor Test 520
Pack/Zone System Health Check 525
Inspection/Check 601 ALL
ASSEMBLY - PLENUM/DIFFUSER 21-51-16
Removal/Installation 401 ALL
CARD - FLOW CONTROL 21-51-09
Removal/Installation 401 ALL
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