TEMPERATURE CONTROL SWITCHES (REF)
LOWER CARGO TEMPERATURE SENSOR
J
Temperature Control System - Component Location (Details from Sheet 3) Figure 102 (Sheet 4)
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747-400 FAULT ISOLATION/MAINT MANUAL
AFT CARGO ZONE DUCT
TEMPERATURE SENSOR AND
OVERTEMPERATURE SWITCH
SEE N SHT 6
FORWARD CARGO
AREA AFT OF TRIM AIR
CREW REST AREA SHUTOFF VALVE V491SEE L
FORWARD CARGO TRIM AIR
CREW
MODULATION
REST AREA
VALVE, V460
FORWARD CARGO CONDITIONED AIR SUPPLY
SEE K
FORWARD CARGO CONDITIONED AIR SUPPLY DUCT
FORWARD CARGO ZONE DUCT PACK 3 TEMPERATURE SENSOR AND WATER SEPERATOR OVERTEMPERATURE SWITCH (REF)
UPPER
SEE O SHT 6
DECK
FORWARD CARGO CONDITIONED AIR SUPPLY (IN RIGHT AIR CONDITIONING EQUIPMENT BAY)
UPPER DECK TRIM AIR K
MODULATION VALVE, V451
CREW REST AREA TRIM AIR MODULATION VALVE, V554
FLIGHT DECK TRIM AIR MODULATION VALVE, V450
FWD INBD
AREA AFT OF CREW REST AREA
L
Temperature Control System - Component Location
Figure 102 (Sheet 5)
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747-400 FAULT ISOLATION/MAINT MANUAL
FORWARD MAIN DECK ZONE DUCT
UPPER DECK ZONE DUCT TEMPERATURE SENSOR AND
TEMPERATURE SENSOR AND OVERTEMPERATURE SWITCH
OVERTEMPERATURE SWITCH SEE M
CREW REST AREA ZONE DUCTSEE M TEMPERATURE SENSOR AND
OVERTEMPERATURE SWITCH
SEE M
AFT MAIN DECK ZONE DUCT TEMPERATURE SENSOR AND OVERTEMPERATURE SWITCH
SEE M FLIGHT DECK ZONE DUCT TEMPERATURE SENSOR AND OVERTEMPERATURE SWITCH
SEE M
ZONE DUCT TEMPERATURE
SENSOR, T1647, T1648,
T1937, T1929, T1934
ZONE DUCT OVERTEMPERATURE SWITCH, S1894, S1895, S2282, S2279, S2281
ZONE DUCT TEMPERATURE SENSOR AND OVERTEMPERATURE SWITCH
M
AFT CARGO ZONE DUCT TEMPERATURE SENSOR, T1658
AFT CARGO FORWARD CARGO
ZONE DUCT DUCT OVERTEMPERATURE
OVERTEMPERATURE SWITCH, S1904
SWITCH, S1905 FORWARD CARGO DUCT
TEMPERATURE SENSOR, T1657
AFT CARGO ZONE DUCT TEMPERATURE FORWARD CARGO ZONE DUCT TEMPERATURE
SENSOR AND OVERTEMPERATURE SWITCH SENSOR AND OVERTEMPERATURE SWITCH
N FROM SHT 5 O FROM SHT 5
Temperature Control System - Component Location
Figure 102 (Sheet 6)
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FAULT ISOLATION/MAINT MANUAL
MAIN DECK AFT TRIM AIR MODULATION VALVE, V551
LEFT WHEEL
WELL
MAIN DECK AFT TRIM AIR MODULATION VALVE, V552
MAIN DECK FORWARD TRIM AIR MODULATION VALVE, V550
RIGHT WHEEL WELL
SEE P
MASTER TRIM AIR SHUTOFF VALVE, V110
FWD
AIR CONDITIONING EQUIPMENT BAY AND WHEEL WELL
AFT CARGO TRIM AIR
MODULATION VALVE, V461
INBOARD BULKHEAD
AFT CARGO TRIM AIR SHUTOFF VALVE, V494
OUTBD FWD
RIGHT WHEEL WELL
P
Temperature Control System - Component Location
Figure 102 (Sheet 7)
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