Operational Test of the Pack Temperature-Control System

TASK 21-61-00-710-001-A
Operational Test of the Pack Temperature-Control System

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Referenced Information

REFERENCE	DESIGNATION
TASK 24-41-00-861-002-A	Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01	Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02	Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A	De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01	De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02	De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-32-00-860-002-A	Procedure to Get Access to the SYSTEM REPORT/TEST/AIR COND Page
TASK 31-60-00-860-001-A	EIS Start Procedure
TSM 21-61-00-810-820	Pack 1 Electrical Component with Short Circuit (AIR PACK 1 REGUL FAULT)
TSM 21-61-00-810-821	Pack 2 Electrical Component with Short Circuit (AIR PACK 2 REGUL FAULT)
TSM 21-61-00-810-863	Pack 1 Control - No Test Result
TSM 21-61-00-810-864	Pack 2 Control - No Test Result
TSM 21-61-00-810-888	MCDU - NO TEST Indications

3. Job Set-up
Subtask 21-61-00-861-059-A

A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).

Subtask 21-61-00-865-075-A

B. Make sure that this(these) circuit breaker(s) is(are) closed:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
49VU	AIR COND/AFT CARGO/VENT/CTL & MONG	31HN	C07
** ON A/C NOT FOR ALL
49VU	AIR COND/AFT CARGO/VENT & HTG/CTL & MONG	31HN	C07
** ON A/C NOT FOR ALL
49VU	AIR COND/TEMP CTL/SYS 1 CHAN B/28VDC	52HH	D08
** ON A/C NOT FOR ALL
49VU	AIR COND/FWD CARGO/VENT/CTL & MONG	2HN	C08
** ON A/C NOT FOR ALL
122VU	AIR COND/ZONE TEMP CTL/28VDC/SYS2	4HK	V20
122VU	AIR COND/ZONE TEMP CTL/28VDC/SYS1	3HK	V19
122VU	AIR COND/ZONE TEMP CTL/115VAC/SYS2	2HK	V18
122VU	AIR COND/ZONE TEMP CTL/115VAC/SYS1	1HK	V17
122VU	AIR COND/PACK TEMP/CTL SYS1/2/115VAC	21HH	W22
122VU	AIR COND/PACK TEMP/CTL SYS1/2/28VDC	23HH	W21
122VU	AIR COND/PACK TEMP/CTL SYS1/1/115VAC	1HH	X22
122VU	AIR COND/PACK TEMP/CTL SYS1/1/28VDC	3HH	X21
122VU	AIR COND/PACK TEMP CTL SYS2/2/28VDC	24HH	Y21
122VU	AIR COND/PACK TEMP CTL SYS2/2/115VAC	22HH	Y20
122VU	AIR COND/PACK TEMP CTL SYS2/1/28VDC	4HH	Y19
122VU	AIR COND/PACK TEMP CTL SYS2/1/115VAC	2HH	Y18
** ON A/C NOT FOR ALL
122VU	AIR COND/AFT CARGO VENT/FAN	30HN	S22
** ON A/C NOT FOR ALL
122VU	AIR COND/TEMP CTL SYS 2/CHAN A/115VAC	53HH	W22
122VU	AIR COND/TEMP CTL SYS 2/CHAN A/28VDC	55HH	W21
122VU	AIR COND/TEMP CTL SYS 1/CHAN A/115VAC	49HH	X22
122VU	AIR COND/TEMP CTL SYS 1/CHAN A/28VDC	51HH	X21
122VU	AIR COND/TEMP CTL SYS 2/CHAN B/28VDC	56HH	Y21
122VU	AIR COND/TEMP CTL SYS 2/CHAN B/115VAC	54HH	Y20
122VU	AIR COND/TEMP CTL SYS 1/CHAN B/115VAC	50HH	Y18

Subtask 21-61-00-860-051-A ** ON A/C NOT FOR ALL

C. Aircraft Maintenance Configuration
(1) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
(2) Make sure that on the ECAM BLEED page both of the pack flow-control valve symbols show closed.

NOTE: The test is only available if both pack flow-control symbols show closed on the BLEED page.

(3) On the AIR COND panel 30VU, make sure that:

the HOT AIR pushbutton switch is in the on position (the OFF and FAULT legends are off).
the PACK 1 and the PACK 2 pushbutton switches are in the off position (the OFF legends are on).

(4) On one MCDU get the SYSTEM REPORT/TEST AIR COND menu page (Ref. AMM TASK 31-32-00-860-002).

Subtask 21-61-00-860-051-B ** ON A/C NOT FOR ALL

NOTE: The test is only available if both pack flow-control symbols show closed on the BLEED page.

(3) On the AIR COND panel 30VU, make sure that:

the HOT AIR pushbutton switch is in the on position (the OFF and FAULT legends are off).
the PACK 1 and the PACK 2 pushbutton switches are in the off position (the OFF legends are on).

(4) On the CARGO HEAT panel 22VU, make sure that the HOT AIR pushbutton switch is in the on position (the OFF and FAULT legends are off).
(5) On one MCDU get the SYSTEM REPORT/TEST AIR COND menu page (Ref. AMM TASK 31-32-00-860-002).

4. Procedure
Subtask 21-61-00-710-050-B ** ON A/C NOT FOR ALL

A. Operational Test of the Pack Temperature-Control System

ACTION	RESULT
1.On the AIR COND menu page:	On the MCDU:
push the line key adjacent to the TEMP CTL indication.	the CAB TEMP CONT menu page comes on.
2.On the CAB TEMP CONT menu page:
push the line key adjacent to the TEST indication.	the CAB TEMP CONT TEST page comes on. the message PACK 1 AND 2 SELECT OFF comes on.
3.On the CAB TEMP CONT TEST page:
push the line key adjacent to the CONTINUE indication.	the message IN PROGRESS MAX 300S comes on, then the messages TEST OK and END OF TEST comes on.

NOTE: If the test shows:
NO TEST RESULT RECEPTION FROM P1/P2 CONT instead of TEST OK:

do the related trouble shooting procedure TSM 21-61-00-810-863 or TSM 21-61-00-810-864.
NO TEST RESULT RECEPTION FROM P1/P2 CONT instead of TEST OK and the post flight report gives the warning AIR PACK 1/2 REGUL FAULT:
do the related trouble shooting procedure TSM 21-61-00-810-820 or TSM 21-61-00-810-821.

Subtask 21-61-00-710-050-C ** ON A/C NOT FOR ALL

A. Operational Test of the Pack Temperature-Control System
(1) Make sure that all bleed air sources (Engine, APU and/or HP ground supply) are disconnected or shut down.

NOTE: The presence of bleed air pressure in the system could lead to test performance failure.

ACTION	RESULT
1.On the AIR COND menu page:	On the MCDU:
push the line key adjacent to the TEMP CTL indication.	the CAB TEMP CONT menu page comes on.
2.On the CAB TEMP CONT menu page:
push the line key adjacent to the TEST indication.	the CAB TEMP CONT SYSTEM TEST page comes on. the message SELECT PACK 1 AND 2 OFF comes on. NOTE: If the test shows: NO TEST: PACK1 NOT OFF and PACK2 NOT OFF instead of TEST OK but the pack pushbutton switches are in the off position: do the related trouble shooting procedure TSM 21-61-00-810-888.
3.On the CAB TEMP CONT SYSTEM TEST page:
push the line key adjacent to the START TEST indication.
4.On the CAB TEMP CONT SYSTEM TEST page:
push the line key adjacent to the CONFIRM START OF TEST indication.	the message TEST IN PROGRESS 240 S comes on, then the message TEST OK comes on.

5. Close-up
Subtask 21-61-00-860-050-A

A. Put the aircraft back to its initial configuration.
(1) On the MCDU, push the line select key adjacent to the RETURN indication until the CFDS menu page comes into view.
(2) De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).

[Rev.10 from 2021] 2026.04.02 06:11:37 UTC