PACK 2 WATER
PACK DUMP (SMACCS) VALVE SEPARATOR
SEE F SHT 4 PACK 2 HEAT
PACK 1 WATER
PACK 1 AIRFLOWEXCHANGERSEPARATOR SENSOR
PACK 1 CATALYTIC
SEE G SHT 4
SEE H SHT 4OZONE CONVERTER
PACK 1 HEAT PACK AIRFLOW
EXCHANGER
SIGNAL SEE D SHT 3
CONDITIONER
SEE C SHT 3
PACK 1 WATER
ASPIRATOR PACK 2 FLOW
CONTROL ANDSEE I SHT 4 SHUTOFF VALVE
PACK 2 WATER ASPIRATOR
PACK 3 CATALYTIC
WATER LINE
OZONE CONVERTER
TO ASPIRATOR
PACK 3 WATER SEPARATOR
PACK 1 AIR CYCLE PACK 3 FLOW CONTROLMACHINE (ACM) AND SHUTOFF VALVE, AND(EXAMPLE)
PACK DUMP (SMACCS) VALVE SEE E SHT 3
PACK 2 ACM
PACK 3 WATERPACK 3 ACM ASPIRATOR
AIR CONDITIONING EQUIPMENT BAY
NOTE: SMACCS IS SMOKE MODE AIRCONDITIONING CONTROL SYSTEM.
Cooling - Component Location
Figure 102 (Sheet 2)
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747-400 FAULT ISOLATION/MAINT MANUAL
RAM AIR INLET DUCT
HEAT EXCHANGER
RAM AIR EXIT DOORSCOMPRESSOR BYPASS CHECK VALVE
PACK 1 HEAT EXCHANGER (EXAMPLE)
AIRFLOW SIGNAL CONDITIONER, M594D
COMPRESSOR DISCHARGE
C
TEMP BULB, T479,
T481, T483 COMPRESSOR TURBINE OUTLET COOLING AIROUTLET (CONDITIONED AIR) CHECK VALVE
RAM AIR RAM AIR SYSTEM SCREEN INLET DUCT
TO HEAT
EXCHANGER
COMPRESSOR DISCHARGE OVERHEAT SWITCH, S517, S520, S522
COMPRESSOR INLET
TURBINE
BY-PASS
INLET FAN DIFFUSER
AIR CYCLE AND INLET HOUSING
TURBINE INLET MACHINE
PACK 1 AIR CYCLE MACHINE (EXAMPLE)
E
Cooling - Component Location (Details from Sht 2)
Figure 102 (Sheet 3)
D22166
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747-400 FAULT ISOLATION/MAINT MANUAL
FILTERS
PACK DISCHARGE TEMPERATURE SENSOR A PACK DISCHARGE (REF) TEMPERATURE SENSOR B
(REF) PACK DISCHARGEFLOW CONTROL AND OVERHEAT SWITCH,SHUTOFF VALVE, S518, S519, S521
V93, V94, V95 WATERPACK DUMP (SMACCS) VALVE SEPARATOR(PACKS 1 AND 3), V556, V557
PACK 1 FLOW CONTROL AND SHUTOFF VALVE,
AND SMACCS VALVE (EXAMPLE)
F
TO WATER ASPIRATOR
WATER SEPARATOR DRAIN PACK 1 WATER SEPARATOR (EXAMPLE)
G
ASPIRATOR AIR SUPPLY
AIRFLOW SENSOR,CONDITIONED T423, T424, T425AIR DUCT WATER ASPIRATOR
FROM WATER SEPARATOR DRAIN
PACK 1 WATER ASPIRATOR (EXAMPLE)PACK 1 AIRFLOW SENSOR (EXAMPLE)
H I
Cooling - Component Location (Details from Sht 2)
Figure 102 (Sheet 4)
D22249
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PACK 2 COMPRESSOR BYPASS CHECK VALVE
PACK 2 WATER
PACK 1 COLLECTOR
COMPRESSOR
BYPASS CHECK
SEE J
VALVE
FWD PACK 3 WATER COLLECTOR
PACK 3 SEE KCOMPRESSOR
PACK 1 WATER
BYPASS CHECK
COLLECTOR
VALVE
SEE J
HEAT
EXCHANGER HEAT EXCHANGER
FLOW CONTROL AND
WATER
SHUTOFF VALVE
COLLECTOR
WATER COLLECTOR
FLOW CONTROL AND SHUTOFF VALVE
TURBINE
FWD
BYPASS
PACK DUMP VALVE
(SMACCS) VALVE (PACK 1 ONLY)
INBD INBD FWDPACK DUMP
WATER COLLECTOR (SMACCS) VALVE (PACK 1 SHOWN, PACK 2 ALMOST THE SAME) WATER COLLECTOR
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