(b)
Progress of Power-up Test
1_ How long the computer must be de-energized:
- 2 ms
2_ A/C configuration:
- A/C on ground
- AIR COND panel:
both packs selected OFF
- ECAM BLEED page:
flow control valves closed
1 Duration:
_
-30 s
2 Cockpit repercussions directly linked to power-up test
_ accomplishment (some other repercussions may occur depending on the A/C configuration but these can be ignored):
-ECAM BLEED page: by-pass valve is moving from cool to hot and from hot to cool
(c) Results of Power-up Test
1 Test passed:
_
-ECAM BLEED page: normal display
2 Test failed:
_
-MASTER CAUT ON with gong
-
ECAM warning: AIR PACK 1(2) REGUL FAULT
-
ECAM BLEED page: amber XX in place of pack indications (upper part of the page)
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(2)
Continuous Monitoring The continuous monitoring is done continuously if power is supplied to the system.
(3)
System Test A system test is only done if it is requested on the Multipurpose Central Display Unit (MCDU) after a component is replaced.
B. MCDU The pack controllers 7HH (27HH) send failure data to the zone temperature controller 8HK. The zone temperature controller sends failure data to the Centralized Fault Display System (CFDS) (Ref. 31-32-00). For MCDU data, refer to chapter 21-63-00.
R **ON A/C 401-499,
A. Built-In Test Equipment (BITE) The Air Conditioning System Controller (ACSC) 47HH (57HH) control the Built-In Test Equipment (BITE) function for the:
-pack control and indicating system (Ref. 21-51-00),
-air cooling system (Ref. 21-52-00),
-
pack cooling air control system (Ref. 21-53-00),
-
pack temperature control system (Ref. 21-61-00).
-cockpit and cabin temperature control system (Ref. 21-63-00).
They monitor the hardware and system performance. They send failure data
to the Central Fault Display System (CFDS) controller.
There are the following tests:
-power-up test,
-continuous monitoring,
-system test.
B. Not Applicable
(1) ACSC Power-up Test
(a) Conditions of Power-up Test Initialization
1 How long the computer must be de-energized:
_ -2 ms
2 A/C configuration:
_ -A/C on ground
-AIR COND panel: both packs selected OFF
-ECAM BLEED page: flow control valves closed
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(b) Progress of Power-up Test
1_ Duration:
- 30 s
2_ Cockpit repercussions directly linked to power-up test
accomplishment (some other repercussions may occur depending
on the A/C configuration but these can be ignored):
- on the BLEED page of the lower ECAM display unit, the bypass
valve symboles move from COOL to HOT and from HOT to COOL
(some other repercussions may occur depending on the A/C
configuration but these can be ignored).
(c) Results of Power-up Test
1 Test passed:
_
-ECAM BLEED page: normal display
2 Test failed:
_
-MASTER CAUT ON with gong
-
ECAM warning: AIR PACK 1(2) REGUL FAULT
-
ECAM BLEED page: amber XX in place of pack indications (upper part of the page)
(2)
Continuous Monitoring The monitoring is done continuously after power is supplied to the system. In the event of a failure detection, the system activates the related back-up and discriminates the faulty line replaceable unit.
(3)
System Test A system test is only done if it is requested on the Multipurpose Central Display Unit (MCDU) after a component is replaced.
C. MCDU (Ref. Fig. 018, 019, 020) The ACSC 2 57HH sends failure data to the Centralized Fault Display System (CFDS) (Ref. 31-32-00). You can set the MCDU to show the failures that occurred during the last flight. The data comes from the CFDS (Ref. 31-32-00). You can also start the system test from the MCDU. From the CAB TEMP CONT menu, you can set:
-<LAST LEG REPORT,
-<PREVIOUS LEGS REPORT,
-<LRU IDENTIFICATION, <TROUBLE SHOOT DATA,
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MCDU Page - LAST LEG REPORT, PREVIOUS LEGS REPORT, LRU IDENTIFICATION - EXAMPLE
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本文鏈接地址：A320飛機(jī)維護(hù)手冊(cè) AMM AIR CONDITIONING 空調(diào) 5(2)
