曝光臺 注意防騙 網曝天貓店富美金盛家居專營店坑蒙拐騙欺詐消費者

Temperature Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.20.2
Zone Target Temperatures . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.20.3
Temperature Control With Loss of Trim Air System -
Passenger Backup Temperature Control. . . . . . . . . . . . . . . . . 2.20.3
Temperature Control Non-Normal Operations . . . . . . . . . . . . 2.20.3
Cargo Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.20.3
Air Distribution Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.20.4
Pilot Auxiliary Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.20.4
Equipment Cooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.20.4
Equipment Cooling Non-Normal Operation . . . . . . . . . . . . . . 2.20.4
Equipment Cooling Control Diagram . . . . . . . . . . . . . . . . . . . 2.20.6
April 01, 2001
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
2.TOC.0.2 D6-30151-425
Air Systems -
Table of Contents
Pressurization SystemDescription. . . . . . . . . . . . . . . . . . . . . . . 2.30.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.30.1
Pressurization System Automatic Operation. . . . . . . . . . . . . . . . 2.30.1
Pressurization SystemManual Operation . . . . . . . . . . . . . . . . . . 2.30.2
Pressurization Relief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.30.2
Bleed Air SystemDescription. . . . . . . . . . . . . . . . . . . . . . . . . . . 2.40.1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.40.1
Engine Bleed Air Supply. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.40.1
APU Bleed Air Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.40.2
Ground Bleed Air Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.40.2
Bleed Air Duct System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.40.3
Duct Leak and Overheat Detection System. . . . . . . . . . . . . . . . . 2.40.3
Bleed Air System Non-normal Operations . . . . . . . . . . . . . . . . . 2.40.3
Bleed Air System Schematic. . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.40.4
EICASMessages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.50.1
Air Systems EICASMessages . . . . . . . . . . . . . . . . . . . . . . . . . . 2.50.1
EICAS AlertMessages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.50.1
EICASMemoMessages . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.50.3
April 01, 2001
747 Operations Manual
Air Systems Chapter 2
Controls and Indicators Section 10
Copyright © The Boeing Company. See title page for details.
D6-30151-425 2.10.1
Air Conditioning System
Air Conditioning
ECS Control
Passenger and Flight Deck Temperature Selectors
TEMP
FAULT
SYS
FAULT
SYS
ON
HI FLOW PACK RST
ZONE RST TRIM AIR UPR-RECIRC-LWR
ON
C W
ON ON
STBY OVRD
NORM
EQUIP COOLING
C W
AFT CARGO HT
ON
PACKS 3
B
A
NORM
OFF
2
B
A
NORM
OFF
1 PACKS
B
A
NORM
OFF
AUTO AUTO
ALTN MAN
PASS - TEMP - FLT DECK
OVERHEAD PANEL
C W C W
AUTO AUTO
ALTN MAN
PASS - TEMP - FLT DECK
ECS PANEL
1 2
April 01, 2001
747 Operations Manual
Copyright © The Boeing Company. See title page for details.
2.10.2 D6-30151-425
Air Systems -
Controls and Indicators
1 Passenger Temperature (PASS TEMP) Selector
AUTO -
• provides automatic control of passenger zone temperatures
• sets master temperature for all zones
• range C to W sets temperature from 65°F (18°C) to 85°F (29°C)
• in backup mode, range C to W sets average cabin temperature from 65°F
(18°C) to 85°F (29°C) and cabin temperatue panel control of zone
temperatures is inhibited
ALTN -
• zone trim air valves remain in last position and master trim air valve
remains open
• zone temperature controller bypassed
• pack output temperature regulated to provide average cabin temperature
of 75°F (24°C)
• cabin temperature panel control of zone temperatures inhibited
2 Flight (FLT) DECKTemperature (TEMP) Selector
AUTO -
• provides automatic control of flight deck temperature
• range C to W sets flight deck temperature from 65°F (18°C) to 85°F
　
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