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ENVIRONMENTAL CONTROL SYSTEM
Aft Cargo Bay Ventilation System
Flight Crew Operating Manual MASTER
CSP A--013
Cargo Compartment Air System with Air Conditioning --- Schematic <0013><0034>
Figure 08---40---1
RECIRCULATION FAN
CONDITIONED
AIR
DISTRIBUTION
MANIFOLD
CONDITIONED--AIR
SHUT--OFF VALVE
RECIRCULATED
CABIN AIR
CARGO
COMPARTMENT
EXHAUST
INTAKE
TEMPERATURE
CONTROL
SWITCH
OVERHEAT
SWITCH
EXHAUST AIR
SHUT--OFF
VALVE
EXHAUST AIR
TO AFT ECS
COMPARTMENT
HEATER
ASSEMBLY
CARGO
COMPARTMENT
SUPPLY
RECIRCULATED--AIR
SHUT--OFF VALVE
DUCT
OVERHEAT
SWITCH
Vol. 1 08--40--3
REV 56, Jan 31/03
ENVIRONMENTAL CONTROL SYSTEM
Aft Cargo Bay Ventilation System
Flight Crew Operating Manual
CSP A--013
MASTER
Cargo Compartment VentilationSystem --- Schematic <0043><0059>
Figure 08---40---2
RECIRCULATION FAN
RECIRCULATED
CABIN AIR
EXHAUST
INTAKE
EXHAUST AIR
SHUT--OFF
VALVE
EXHAUST AIR
TO AFT ECS
COMPARTMENT
CARGO
COMPARTMENT
SUPPLY
RECIRCULATED--AIR
SHUT--OFF VALVE
REV 56, Jan 31/03
Vol. 1 08--40--4
ENVIRONMENTAL CONTROL SYSTEM
Aft Cargo Bay Ventilation System
Flight Crew Operating Manual MASTER
CSP A--013
Cargo Compartment Air/ventilation System <MST>
Figure 08---40---3
CARGO SOV FAIL status (white)
Comes on to indicate that air supply shut--off
valve has failed (either open or closed).
CARGO FAN FAIL status (white)
Comes on to indicate low air flow at cargo
bay recirculation fan.
Status Page
Primary Page
Air--Conditioning Panel
Overhead Panel
BAGG
COMPT
CONT
DC BUS 1
BAGG
COMPT
FAN
AC BUS 1
BAGG
COMPT
SOV
DC ESS
Cargo Bay Air Conditioning
Switch
Used to select to system mode.
COND AIR -- Temperature
controlled airflow provided
to cargo bay area.
FAN -- Recirculated cabin
exhaust air provided to cargo
bay area.
OFF -- Shuts off airflow to the
cargo bay area.
<0039> <0006>
Cargo Bay Mode Switch
Used to select to system mode.
FAN -- Recirculated cabin
exhaust air provided to cargo
bay area.
OFF -- Shuts off airflow to the
cargo bay area.
<0039>
<0013><0034><0074>
<0043>
<0053>
<0059>
<0039>
<0013><0034><0074>
<0013>
<0034>
<0074>
<0043>
<0053>
<0059>
Vol. 1 08--40--5
REV 56, Jan 31/03
ENVIRONMENTAL CONTROL SYSTEM
Aft Cargo Bay Ventilation System
Flight Crew Operating Manual
CSP A--013
MASTER
A. System Circuit Breakers
SYSTEM SUB--SYSTEM CB NAME BUS BAR CB
PANEL
CB
LOCATION
NOTES
Controller BAGG COMPT
CONT DC BUS 1 1 L3
Cargo Bay
Conditioned
Air System
Heater BAGG COMPT
HEATER AC BUS 1 1 B8
<0013>
<0034>
<0074> Fan BAGG COMPT
FAN AC BUS 1 1 D5
Shutoff Valve BAGG COMPT
SOV DC ESS 4 A12
REV 56, Jan 31/03
Vol. 1 08--40--6
ENVIRONMENTAL CONTROL SYSTEM
Aft Cargo Bay Ventilation System
Flight Crew Operating Manual MASTER
CSP A--013
THIS PAGE INTENTIONALLY LEFT BLANK
Vol. 1 08--50--1
REV 56, Jan 31/03
ENVIRONMENTAL CONTROL SYSTEM
Lavatory and Galley Ventilation System
Flight Crew Operating Manual
CSP A--013
MASTER
Effectivity:
S Aircraft 7002, 7050 and subsequent.
S Aircraft 7003 to 7010, 7015,7016, 7019 to 7021, 7023 to 7025, 7032, 7033, 7036, 7039,
7040 incorporating SB 601R--25--012.
1. GALLEY HEATING SYSTEM
The galley is heated with two 500 watt heaters to provide supplementary heat to the galley and
service door area. One heater uses the air from the right exhaust riser duct and the second
heater warms conditioned air from the right gasper supply duct. The heaters are controlled by
switchlights on the Flight Attendants panel. There is no EICAS display for the galley heating
system.
Each heater incorporates an internal overtemperature switch that removes power to the heater
when the heater outlet temperature becomes excessive. The heater also incorporates an
internal, overheat protection switch which disables the heater when the internal temperature
exceeds a preset limit. Heater #1 has a fan which can be used in conjunction with or separate
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