(2)
The compressor discharge temperature-sensors 12HH (32HH) are installed between the compressors of the air-cycle machines 10HM1 (11HM1) and the main heat exchangers 10HM7 (11HM7).
(3)
The water extractor temperature-sensors 11HH (31HH) are installed in the water extractors 10HM8 (11HM8) upstream of the reheaters 10HM3 (11HM3).
(4)
The bleed temperature sensors 18HH (38HH) are installed in the bleed air ducts upstream of the flow control valves 8HB (11HB).
(5)
The pack discharge temperature-sensors 13HH (34HH) are installed at the pack outlet (close to the pack outlet pneumatic-sensor).
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C. Temperature Sensors The temperature sensors are installed to send temperature data to the pack controllers 7HH (27HH).
(1)
The compressor-overheat sensors 15HH (35HH) are installed between the compressors of the air-cycle machines 10HM1 (11HM1) and the main heat exchangers 10HM7 (11HM7).
(2)
The compressor discharge temperature-sensors 12HH (32HH) are installed between the compressors of the air-cycle machines 10HM1 (11HM1) and the main heat exchangers 10HM7 (11HM7).
(3)
The water extractor temperature-sensors 11HH (31HH) are installed in the water extractors 10HM8 (11HM8) upstream of the reheaters 10HM3 (11HM3).
(4)
The pack discharge temperature-sensors 13HH (34HH) are installed at the pack outlet (close to the pack outlet pneumatic-sensor).
R **ON A/C 401-499,
C. Temperature Sensors The temperature sensors are installed to send temperature data to the ACSC's 47HH (57HH).
(1)
The compressor discharge temperature-sensors 12HH (32HH) are installed between the compressors of the air-cycle machines 10HM1 (11HM1) and the main heat exchangers 10HM7 (11HM7).
(2)
The water extractor temperature-sensors 11HH (31HH) (pack temperature sensors) are installed in the water extractors 10HM8 (11HM8) upstream of the reheaters 10HM3 (11HM3).
(3)
The pack discharge temperature-sensors 14HH (20HH) are installed at the unpressurized side of the bulk head close to the pack discharge duct (one per pack).
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D. Pneumatic Compressor Overheat-Sensors The pneumatic compressor-overheat sensors 10HM9 (11HM9) are installed downstream of the compressors of the air-cycle machines 10HM1 (11HM1). They are connected to the flow control valves 8HB (11HB). If the compressor outlet temperature increases above a predetermined value (aprrox. 230 deg.C), the pneumatic compressor overheat-sensor gives a signal to reduce the airflow via the flow control valve.
R **ON A/C 401-499,
D. Pressure Sensors The pressure sensors are installed to send pressure data to the ACSC's 47HH (57HH).
(1) The Pack Discharge Pressure Sensor (PDPS) 14HH (20HH) is mounted on each side of the air conditioning bay center beam.
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
E. Pack Outlet Pneumatic-Sensors The pack outlet pneumatic sensors 10HM10 (11HM10) are installed on the condensers 10HM2 (11HM2). They are connected to the anti-ice valves 17HH (37HH). If there is a failure in a pack controller 7HH (27HH), the pneumatic sensor transmits the pressure to the applicable anti-ice valve. If the pressure at a pneumatic temperature sensor increases or decreases (because of an increase or decrease in temperature) the anti-ice valve opens or closes to maintain the pack outlet temperature at about 15 deg.C
(59.00 deg.F).
**ON A/C 001-003, 051-054,
F. Pack Controllers The pack controllers 7HH (27HH) are the computers for the pack temperature control-system. They do the calculations necessary for operation of the air conditioning packs 10HM (11HM). They are installed in the racks 95VU and 96VU of the avionics compartment. They have the following functions:
-
to receive, to calculate and to send the necessary signals (ARINC 429 data bus) to the zone temperature controller 8HK,
-
to send the necessary signals to the P/BSW 6HB (7HB) on the panel 30VU in the cockpit,
-
to calculate and send the necessary signals to the air-inlet flap actuators 8HH (28HH) to open and close the ram air inlets,
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本文链接地址：A320飞机维护手册 AMM AIR CONDITIONING 空调 4(144)
