(12) is not large enough to drop the muscle pressure very much. The action of the valve is identical for icing of the low-pressure side of the condenser, where the pressures are sensed at ports (5) and (3). If the pack controller 7HH (27HH) is unable to control the bypass valve 10HH (30HH) the solenoid (10) is de-energizd which closes the vent (12). The muscle pressure supply is then governed through the pressure regulator (9). The vent flow is controlled with the pack pneumatic temperature sensor (11). The pressure in the pneumatic actuator (valve angle) is controlled with the pneumatic sensor.
F. Compressor Discharge Temperature-Sensor
**ON A/C 001-003, 051-054,
(Ref. Fig. 010)
R **ON A/C 004-049, 055-099, 101-149, 151-199, 201-299, 301-399,
(Ref. Fig. 010A)
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
The compressor discharge temperature-sensor 12HH (32HH) consists of one platinum resistor potted in a stainless-steel ventilated-tube housing. A 3-pin electrical connector is also included. The sensor is located in the compressor outlet duct of each air conditioning pack 10HM (11HM). It is connected to the pack controller 7HH (27HH) primary-computer for control functions and overheat detection.
R 1EFF : 001-049, 051-099, 101-149, 151-199, 1 21-61-00Page 85 1201-299, 301-399, 1Aug 01/05 1 1 1CES 1
Anti-Ice Valve 17HH, 37HH - Schematic
Figure 009A
R 1EFF : 401-499, 1 21-61-00 Page 86
1 1 Aug 01/05
1 1
1CES 1
Pack Discharge Temp. Sensor, Compressor Discharge Temp. Sensor, Compressor
Overheat Sensor, Bleed Temp. Sensor
Figure 010
R 1EFF : 001-003, 051-054, 1 21-61-00 Page 87
1 1 May 01/05
1 1
1CES 1
Pack Discharge Temp. Sensor, Compressor Discharge Temp. Sensor, Compressor
Overheat Sensor.
Figure 010A
R 1EFF : 004-049, 055-099, 101-149, 151-199, 1 Page 8821-61-00
1201-299, 301-399, 1 Aug 01/05
1 1
1CES 1
R **ON A/C 401-499,
R R R R R R R R R R R R R R E. Anti-ice Valve (Ref. Fig. 009A) In each air conditioning pack 10HM (11HM), the anti-ice valve 17HH (37HH) is located in a duct between the upstream side of the primary heat exchanger and the turbine outlet. The anti-ice valve consists of an actuator assembly and a valve body assembly. They are bolted together and internally connected. A butterfly valve is driven by a stepper motor through reduction gears which have mechanical end stops. A cam installed on the shaft, operates a limit switch which signals fully closed to the ACSC. Step counting will signal the ACSC the valve position. The ACSC uses this information for BITE and ECAM display. A manual override and visual position indicator device is installed on the bottom of the shaft.
F. Compressor Discharge Temperature-Sensor (Ref. Fig. 010B) The compressor discharge temperature-sensor (CDS) 12HH (32HH) is located in the compressor outlet duct of each air conditioning pack 10HM (11HM). The CDS is a duplex PT100 temperature sensor and measures the compressor outlet air temperature. Both sensor elements of each CDS are linked to the corresponding ACSC lane 1 and 2. The ACSC will use the measured temperature to control the compressor outlet temperature and to generate a warning in case of overheat in flight. On ground the corresponding pack is switched off by the ACSC additionally.
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
G. Compressor Overheat Sensor
**ON A/C 001-003, 051-054,
(Ref. Fig. 010)
R **ON A/C 004-049, 055-099, 101-149, 151-199, 201-299, 301-399,
(Ref. Fig. 010A)
Pack Discharge Temp. Sensor, Compressor Discharge Temp. Sensor
Figure 010B
R 1EFF : 401-499, 1 21-61-00Page 90 1 1 Aug 01/05 1 1 1CES 1
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
The compressor overheat sensor 15HH (35HH) is located in the compressor outlet duct (close to the compressor discharge temperature sensor 12HH (32HH)). The sensor is connected to the pack controller 7HH (27HH) secondary-computer for overheat detection. The sensor also provides compressor outlet temperature on ECAM. This will ease troubleshooting.
H. Water Extractor Temperature-Sensor (Ref. Fig. 011) The water extractor temperature-sensor 11HH (31HH) consists of two thermistors potted in a hermetically sealed steel housing. A 6-pin electrical connector is also included. One thermistor is connected to the pack controller 7HH (27HH) primary-computer the other to the secondary computer. They both give control information.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：A320飞机维护手册 AMM AIR CONDITIONING 空调 4(156)
