R **ON A/C 051-052, 106-149, 303-399,
5. Close-up
________ R **ON A/C 051-052,
A. Put the aircraft back to its initial configuration.
TASK 21-63-00-810-824
FWD Cabin Duct Overheat Detection
1. Possible Causes
_______________
- SENSOR-DUCT TEMPERATURE,FWD CABIN (16HK)
- SENSOR-DUCT OVHT TEMPERATURE,FWD CABIN (19HK)
- VALVE-TRIM AIR,FWD CABIN (12HK)
- VALVE-PRESSURE REGULATING (14HK)
- CONT-ZONE TEMPERATURE (8HK)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 21-63-00-710-004 Operational Test of the Cockpit and Cabin Temperature Control with CFDS/MCDU AMM 21-63-15-000-001 Removal of the Duct Temperature Sensors 15HK, 16HK and 17HK AMM 21-63-15-400-001 Installation of the Duct Temperature Sensors 15HK, 16HK and 17HK AMM 21-63-18-000-001 Removal of the Duct Overheat-Temperature Sensors 18HK, 19HK and 20HK AMM 21-63-18-400-001 Installation of the Duct Overheat-Temperature Sensors
18HK, 19HK and 20HK AMM 21-63-34-000-001 Removal of the Zone Controller (8HK) AMM 21-63-34-400-001 Installation of the Zone Controller (8HK) AMM 21-63-51-000-001 Removal of the Trim Air Valve (11HK,12HK,13HK) AMM 21-63-51-400-001 Installation of the Trim Air Valve (11HK,12HK,13HK) AMM 21-63-52-000-001 Removal of the Pressure Regulating Valve 14HK AMM 21-63-52-400-001 Installation of the Pressure Regulating Valve 14HK ASM 21-63/02 ASM 21-63/03 ASM 21-63/03
3. Fault Confirmation
__________________
A. Do the operational test of the cockpit and cabin temperature-control system with CFDS/MCDU (Ref. AMM TASK 21-63-00-710-004).
NOTE : If a fault is detected, the ZC gives a fault code for shop
____ maintenance in addition to the related CFDS message(s). For detailed information see the applicable Page Block 301.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : 051-052, ∞∞21-63-00∞∞∞∞∞∞∞∞∞∞Page 260
Aug 01/05R
CES
4. Fault Isolation
_______________
A. If the test confirms the fault:
- do a check that the resistance of the FWD cabin-duct temperature sensor (16HK) measured between connector A/E and A/F and connector A/C and A/D is in these limits (Ref. ASM 21-63/03):
Temp (Deg.C) OHMS ---------------------------
+ 10 18820 +/- 5 %
+ 18 13340 +/- 5 %
+ 25 10000 +/- 5 %
+ 30 8197 +/- 5 %
+ 40 5598 +/- 5 %
+ 50 3903 +/- 5 %
(1) If the resistance values are out of the specified limits:
- replace the SENSOR-DUCT TEMPERATURE,FWD CABIN (16HK) (Ref. AMM TASK 21-63-15-000-001) and (Ref. AMM TASK 21-63-15-400-001).
(2) If the resistance values are in the specified limits:
- do a check and repair the wiring (Ref. ASM 21-63/03) from:
- the SENSOR-DUCT TEMPERATURE,FWD CABIN (16HK) to the ZC (8HK) and,
- the SENSOR-DUCT TEMPERATURE,FWD CABIN (16HK) to ground.
(3) If the fault continues:
- do a check that the resistance of the FWD cabin-duct overheat sensor (19HK) measured between connector A/A and A/B is in these limits (Ref. ASM 21-63/03):
Temp (Deg.C) OHMS ---------------------------
+ 10 18820 +/- 5 %
+ 18 13340 +/- 5 %
+ 25 10000 +/- 5 %
+ 30 8197 +/- 5 %
+ 40 5598 +/- 5 %
+ 50 3903 +/- 5 %
(a) If the resistance values are out of the specified limits:
- replace the SENSOR-DUCT OVHT TEMPERATURE,FWD CABIN (19HK) (Ref. AMM TASK 21-63-18-000-001) and (Ref. AMM TASK 21-63-18-400-001).
(b) If the resistance values are in the specified limits:
- do a check and repair the wiring (Ref. ASM 21-63/03) from: 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 AIR CONDITIONING 空调2(118)
