(b) If the plenum chamber is damaged:
- replace the PLENUM CHAMBER (11HM5) (Ref. AMM TASK 21-52-22-000-001) and (Ref. AMM TASK 21-52-22-400-001).
(8) If the fault continues:
(a) Replace the VALVE-ANTI-ICE (37HH) (Ref. AMM TASK 21-61-41-000-001) and (Ref. AMM TASK 21-61-41-400-001).
R **ON A/C 401-499,
B. For a Compressor Discharge Overheat Condition:
(1) If you select on the panel 30VU NORM airflow and the pack 2 flow indicator on the ECAM BLEED page moves to the HI indication:
- replace the FLOW CTL SYSTEM - PACK 2 (24HB) (Ref. AMM TASK 21-51-51-000-001) and (Ref. AMM TASK 21-51-51-400-001).
「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 ∞∞21-61-00∞∞∞∞∞∞∞∞∞∞Page 215
Aug 01/05 CES (2) If the fault continues:
- do a check that the resistance of the compressor discharge sensor (32HH) measured between connector A/A and A/B is in these limits (Ref. ASM 21-61/02):
Temp (Deg.C) OHMS ---------------------------
+ 10 103.9 +/- 0.5
+ 20 107.8 +/- 0.5
+ 30 111.7 +/- 0.5
+ 50 119.4 +/- 0.5
+ 70 127.1 +/- 0.5
+ 100 138.5 +/- 0.5
(a) If the resistance values are out of the specified limits:
- replace the SENSOR-COMPRESSOR TEMPERATURE (32HH) (Ref. AMM TASK 21-61-11-000-001) and (Ref. AMM TASK 21-61-11-400-001).
(3) If the fault continues:
- do a check that the pack 2 ram-air inlet-flap is in the open position.
(4) If the pack 2 ram-air inlet-flap is closed:
- do a check for a ground signal at the ACSC2 (57HH) connector AA/10A (Ref. ASM 21-61/01).
(a) If there is a ground signal:
- do a check of the RELAY-WHEEL 3 SPEED (24GG) and replace it if necessary (Ref. ASM 21-61/01).
(b) If the fault continues:
- do the test for the BSCU (10GG) as given in the AMM TASK 32-42-34-400-001 para. 5.A (Ref. AMM TASK 32-42-34-400-001).
1 If the test gives a different maintenance message, refer to
_
the Fault Symptom List.
(c) If the fault continues:
- replace the CONT-AIR COND SYSTEM 2 (57HH) (Ref. AMM TASK 21-61-34-000-002) and (Ref. AMM TASK 21-61-34-400-002).
C. For a Pack Outlet Overheat Condition
(1) If there is no airflow at the pack 2 ram-air outlet:
- replace the MACHINE-AIR CYCLE (11HM1) (Ref. AMM TASK 21-52-21-000-001) and (Ref. AMM TASK 21-52-21-400-001).
(2) If the fault continues:
- do a check that the resistance of the pack discharge sensor (34HH) measured between connector A/A and A/B is in these limits (Ref. ASM 21-61/02):
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 401-499, ∞∞21-61-00∞∞∞∞∞∞∞∞∞∞Page 216
Aug 01/05 CES Temp (Deg.C) OHMS ---------------------------
+ 10 103.9 +/- 0.5
+ 20 107.8 +/- 0.5
+ 30 111.7 +/- 0.5
+ 50 119.4 +/- 0.5
+ 70 127.1 +/- 0.5
+ 100 138.5 +/- 0.5
(a) If the resistance values are out of the specified limits:
- replace the SENSOR-PACK OUTLET TEMP (34HH) (Ref. AMM TASK 21-61-15-000-001) and (Ref. AMM TASK 21-61-15-400-001).
(3) If the fault continues:
(a) Remove the inspection panel from the pack 2 ram-air inlet plenum (11HM14).
(b) Do a check of the water injector nozzle for damage or wear:
- if the water injector nozzle is worn or damaged replace it (Ref. AMM TASK 21-52-00-960-001).
(c) Do a check of the main heat exchanger (11HM7) for contamination:
- ff the main heat exchanger is clogged do the cleaning of the clogged main heat exchanger (11HM7) and the clogged primary heat exchanger (11HM6) (Ref. AMM TASK 21-52-00-100-001).
- Install the inspection panel on the pack 2 ram-air inlet plenum (11HM14).
(4) If the fault continues:
- do a check of the reheater (11HM3) for contamination (Ref. AMM TASK 21-52-00-780-001).
NOTE : This sub-paragraph (4) is only applicable to reheaters with
____ the P/N 755A0000-04 and previous. It is not applicable to reheaters with the P/NIs 755A0000-04 Amendment A or subsequent.
(a) If the reheater is clogged:
- do the cleaning of the clogged reheater (11HM3) (Ref. AMM TASK 21-52-00-100-002),
(5) If the fault continues:
- do the cleaning of the clogged condenser (11HM2) (Ref. AMM TASK 21-52-00-100-003),
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(19)
