A320 Trouble Shooting Manual 排故手册 AIR CONDITIONING 空调2(137)

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 3. Fault Confirmation
__________________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 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.
R **ON A/C 401-499,
 A. Do the operational test of the cockpit and cabin temperature-control system with CFDS/MCDU (Ref. AMM TASK 21-63-00-710-004).
 「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 : ALL ∞∞21-63-00∞∞∞∞∞∞∞∞∞∞Page A208
 Aug 01/05 CES **ON A/C ALL

 4. Fault Isolation
_______________
R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 301-399,
 A. If the test gives the maintenance message TRIM AIR PRESS VALVE OR PRESS SWITCH:
 - replace the trim air pressure-regulating valve filter (Ref. AMM TASK 21-63-00-920-001).
 (1) If the fault continues:

 - replace the VALVE-PRESSURE REGULATING (14HK) (Ref. AMM TASK 21-63-52-000-001) and (Ref. AMM TASK 21-63-52-400-001).

 (2) If the fault continues:

 - replace the PRESSURE SWITCH-HOT AIR (26HK) (Ref. AMM TASK 21-63-19-000-001) and (Ref. AMM TASK 21-63-19-400-001).

 (3) If the fault continues:

 - do a check and repair the wiring (Ref. ASM 21-63/01) and (Ref. ASM 21-63/03) from:

 - the VALVE (14HK) to the ZC (8HK),

 - the VALVE (14HK) to ground,

 - the VALVE (14HK) to the CB (3HK) via the P/BSW (7HK),

 - the SWITCH (26HK) to the ZC (8HK) and,

 - the SWITCH (26HK) to ground.

 

 B. If the test gives the maintenance message TEST OK, but the POST FLIGHT REPORT and the PREVIOUS LEG REPORT give the maintenance message TRIM AIR PRESS VALVE OR PRESS SWITCH:
 - replace the PRESSURE SWITCH-HOT AIR (26HK) (Ref. AMM TASK 21-63-19-000-001) and (Ref. AMM TASK 21-63-19-400-001).
 (1) If the fault continues:
 - replace the VALVE-PRESSURE REGULATING (14HK) (Ref. AMM TASK 21-63-52-000-001) and (Ref. AMM TASK 21-63-52-400-001).
R **ON A/C 401-499,
 A. If the test gives the maintenance message TRIM AIR PRESS VALVE(14HK) OR PRESS SWITCH(26HK):
 - replace the trim air pressure-regulating valve filter (Ref. AMM TASK 21-63-00-920-001).
 (1) If the fault continues:
 - replace the VALVE-PRESSURE REGULATING (14HK) (Ref. AMM TASK 21-63-52-000-001) and (Ref. AMM TASK 21-63-52-400-001).
 「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 : ALL ∞∞21-63-00∞∞∞∞∞∞∞∞∞∞Page A209
 Aug 01/05 CES

 (2) If the fault continues:

 - replace the PRESSURE SWITCH-HOT AIR (26HK) (Ref. AMM TASK 21-63-19-000-001) and (Ref. AMM TASK 21-63-19-400-001).

 (3) If the fault continues:

 - do a check and repair the wiring (Ref. ASM 21-63/01) and (Ref. ASM 21-63/03) from:

 - the VALVE (14HK) to the ACSC1 (47HH),

 - the VALVE (14HK) to ground,

 - the VALVE (14HK) to the CB (3HK) via the P/BSW (7HK),

 - the SWITCH (26HK) to the ACSC1 (47HH) and,

 - the SWITCH (26HK) to ground.

 

 B. If the test gives the maintenance message TEST OK, but the POST FLIGHT REPORT and the PREVIOUS LEG REPORT give the maintenance message TRIM AIR PRESS VALVE (14HK) OR PRESS SWITCH(26HK):
 - replace the PRESSURE SWITCH-HOT AIR (26HK) (Ref. AMM TASK 21-63-19-000-001) and (Ref. AMM TASK 21-63-19-400-001).
 (1) If the fault continues:
 - replace the VALVE-PRESSURE REGULATING (14HK) (Ref. AMM TASK 21-63-52-000-001) and (Ref. AMM TASK 21-63-52-400-001).
 **ON A/C ALL
 C. Do the test as given in the Para. 3.A.
 「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 : ALL ∞∞21-63-00∞∞∞∞∞∞∞∞∞∞Page A210
 Aug 01/05R
 CES

 TASK 21-63-00-810-850

 Pack 1 Trim Air Check Valve Fault
 1. Possible Causes
_______________
 - CHECK VALVE-TRIM AIR (18HM)
 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
　
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