21-CONTENTS
GUN Page 8 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL CHAPTER 21 - AIR CONDITIONING TABLE OF CONTENTS
_________________
Subject
_______
WATER SEPARATOR
Maintenance Practices Cleaning Functional Test Installation Removal
EQUIPMENT COOLING SYSTEM
Description and Operation General Card - Equipment Cooling Cleaner - Air Detector - Low Flow Fan - Aft Equipment Cooling Fan - Supply and Exhaust Screen - Fan Sensor - Fan Current Switch - Differential Pressure Switch - Equipment Cooling
Mode Select Switch - Overheat Switch - Skin Temperature Valve - E6/E9 Valve - Fan Check Valve - Ground Exhaust Valve - Inboard Valve - Smoke/Override Valve - 3-Way Operation
Adjustment/Test Inspection/Check CARD - EQUIPMENT COOLING
Removal/Installation CLEANER - EQUIPMENT COOLING AIR
Maintenance Practices Cleaning Removal and Installation Chapter SectionSubject_______ Page
21-51-05201 206201208204
21-58-001 1988777989
981711179
501 601
21-58-05401
21-58-10201 201202Effectivity
ALL
ALL
ALLALLALLALL
21-CONTENTS
GUN Page 9 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
CHAPTER 21 - AIR CONDITIONING
TABLE OF CONTENTS
_________________
Chapter
Section
Subject_______ Subject_______
DETECTOR - LOW FLOW 21-58-02
Maintenance Practices
Cleaning
Removal and Installation
FANS - EQUIPMENT COOLING 21-58-01
Removal/Installation
Cleaning/Painting
SCREEN - EQUIPMENT COOLING FAN 21-58-15
Cleaning/Painting
SCREEN - EQUIPMENT COOLING INLET 21-58-11
Maintenance Practices
Cleaning
Removal and Installation
SWITCH - DIFFERENTIAL PRESSURE 21-58-09
Removal/Installation
SWITCH - OVERHEAT 21-58-08
Maintenance Practices
SWITCH - SKIN TEMPERATURE 21-58-07
Removal/Installation
VALVE - CHECK 21-58-03
Removal/Installation
Inspection/Check
VALVE - EQUIPMENT COOLING 21-58-14
THREE-WAY
Removal/Installation
VALVE - E6/E9 21-58-13
Removal/Installation
VALVE - GROUND EXHAUST 21-58-12
Removal/Installation
VALVE - NINE-INCH DUCT 21-58-04
Removal/Installation
VALVE - SMOKE/OVERRIDE 21-58-06
Removal/Installation
TEMPERATURE CONTROL___________________ 21-60-00
Page____ Effectivity___________
201 ALL
205
201
401 ALL
701 ALL
701 ALL
201 ALL
204
201
401 ALL
201 ALL
401 ALL
401 ALL
601 ALL
401 ALL
401 ALL
401 ALL
401 ALL
401 ALL
21-CONTENTS
GUN Page 10 Feb 18/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
747-400 MAINTENANCE MANUAL
CHAPTER 21 - AIR CONDITIONING
TABLE OF CONTENTS_________________
Chapter
Section
Subject Subject_______ _______ Page____ Effectivity___________
Component Location 101 ALL
Component Index
Component Location
ZONE TEMPERATURE CONTROL SYSTEM 21-61-00
Description and Operation 1 ALL
General 1
Controller - Zone Temperature 11
Module - Cabin Temperature 1
Control
Selector - Cabin Temperature, 11
Digital
Sensor - Duct Temperature 12
Sensor - Pressure, Trim Air 13
Sensor - Zone Temperature 12
Switch - Duct Overtemperature 12
Valve - Flight Deck Flow 13
Regulating
Valve - Modulating, Trim Air 12
Valve - Shutoff, Cargo Trim 12
Air
Valve - Shutoff, Master Trim 12
Air
Operation 13
Adjustment/Test 501 ALL
BITE Test 501
CONTROLLER - ZONE TEMPERATURE 21-61-01
Removal/Installation 401 ALL
FILTER - ZONE TEMPERATURE SENSOR 21-61-06
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