W DOC AIRBUS | AMM A320F

Operational Check of Smoke Configuration Control Circuit

TASK 21-26-00-710-003-A
Operational Check of Smoke Configuration Control Circuit

ZONE: 210
1. Reason for the Job
Refer to the MPD TASK: 212600-03
OPERATIONAL CHECK OF SMOKE CONFIGURATION CONTROL CIRCUIT
2. Job Set-up Information
 A. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
210
CKPT,FWD COMPT BHD TO FLT COMPT BULKHEAD
 B. Referenced Information
REFERENCE
DESIGNATION
TASK 21-26-12-000-802-A
Removal of the Avionics-Ventilation Comfort Duct-Temperature-Sensor
TASK 21-26-12-400-802-A
Installation of the Avionics-Ventilation Comfort Duct-Temperature-Sensor
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 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
3. Job Set-up
Subtask 21-26-00-040-075-A ** ON A/C NOT FOR ALL
A. Deactivation of the Avionics-Ventilation Comfort Duct-Temperature-Sensor
   (1) Disconnect the electrical connector from the duct temperature sensor (Ref. AMM TASK 21-26-12-000-802).
Subtask 21-26-00-865-052-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUAIR COND/AVNCS VENT/CTL6HQD06
49VUAIR COND/AVNCS VENT/CTL5HQD05
122VUAIR COND/AVNCS/VENT/MONG3HQY17
** ON A/C NOT FOR ALL
123VUAVNCS VENT/EXTC/FAN2HQAE02
** ON A/C ALL
123VUAVNCS VENT/BLOWER/FAN1HQAD10
** ON A/C NOT FOR ALL
123VUAVNCS VENT/EXTC/FAN2HQAC04
Subtask 21-26-00-941-088-A
C. Safety Precautions
   (1) Make sure that the engine 1 and 2 throttle control levers are at idle.
Subtask 21-26-00-861-052-A
D. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
NOTE: The energization of the aircraft electrical circuits starts a full test of the ventilation system. The test continues for 2 minutes approximately.
Subtask 21-26-00-860-056-C ** ON A/C NOT FOR ALL
E. Aircraft Maintenance Configuration
   (1) On the VENTILATION section of panel 22VU:
  • Make sure that the BLOWER and the EXTRACT pushbutton switches are in the AUTO configuration (the pusbutton switches are pushed and the FAULT and the OVRD legends are off).
   (2) Do the Electronic Instrument System (EIS) start procedure (Ref. AMM TASK 31-60-00-860-001).
   (3) On the ECAM control panel, push the PRESS pushbutton key.
   (4) On the lower ECAM display unit:
  • The CAB PRESS page comes into view and shows the skin air-inlet (INLET) and the skin air-outlet (OUTLET) valves in the open position (if the outside air temperature is more than or equal to 12 DEG.C (53.6 DEG.F)).
NOTE: If the outside air temperature is less than 9 DEG.C (48.2 DEG.F), the skin air-inlet and the skin air-outlet valves are closed).
NOTE: If the avionics duct temperature is less than 40 DEG.C (104 DEG.F), the skin air-inlet and the skin air-outlet valves are closed.
Subtask 21-26-00-860-056-D ** ON A/C NOT FOR ALL
E. Aircraft Maintenance Configuration
   (1) On the VENTILATION section of panel 22VU:
  • Make sure that the BLOWER and EXTRACT pushbutton switches are in the AUTO configuration (the pushbutton switches are pushed and the FAULT and OVRD legends are off).
   (2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
   (3) On the ECAM control panel, push the PRESS pushbutton switch.
   (4) On the lower ECAM display unit:
  • The CABIN PRESS page comes into view and shows that the skin air-inlet (INLET) and the skin air-outlet (OUTLET) valves are in the open position (if the external air temperature is more than or equal to 12 DEG.C (53.6 DEG.F)).
NOTE: If the external air temperature is less than 9 DEG.C (48.2 DEG.F), the skin air-inlet and the skin air-outlet valves are closed.
NOTE: If the avionics duct temperature is less than 40 DEG.C (104 DEG.F), the skin air-inlet and the skin air-outlet valves are closed.
Subtask 21-26-00-860-056-F ** ON A/C NOT FOR ALL
E. Aircraft Maintenance Configuration
   (1) On the VENTILATION section of panel 22VU:
  • Make sure that the BLOWER and the EXTRACT pushbutton switches are in the AUTO configuration (the pusbutton switches are pushed and the FAULT and the OVRD legends are off).
   (2) Do the Electronic Instrument System (EIS) start procedure (Ref. AMM TASK 31-60-00-860-001).
   (3) On the ECAM control panel, push the PRESS pushbutton key.
   (4) On the lower ECAM display unit:
  • The CAB PRESS page comes into view and shows the skin air-inlet (INLET) and the skin air-outlet (OUTLET) valves in the open position (if the outside air temperature is more than or equal to 12 DEG.C (53.6 DEG.F)).
NOTE: If the outside air temperature is less than 9 DEG.C (48.2 DEG.F), the skin air-inlet and the skin air-outlet valves are closed.
NOTE: If the avionics duct temperature is less than 40 DEG.C (104 DEG.F), the skin air-inlet and the skin air-outlet valves are closed.
4. Procedure
Subtask 21-26-00-710-052-B ** ON A/C NOT FOR ALL
A. Operational Test of the Smoke Configuration Control-Circuit
ACTION
RESULT
1.On the VENTILATION section of panel 22VU:
  • Release the BLOWER pushbutton switch.
On the VENTILATION section of panel 22VU:
  • On the BLOWER pushbutton switch, the OVRD legend comes on.
    The blower fan stops.
    On the PRESS page of the lower ECAM DU:
  • The skin air-inlet valve (INLET) and the skin air-outlet valve (OUTLET) close.
NOTE: The skin-exchanger isolation valve and the conditioned-air inlet valve open.
2.On the VENTILATION section of panel 22VU:
  • Release the EXTRACT pushbutton switch.
On the VENTILATION section of panel 22VU:
  • On the EXTRACT pushbutton switch, the OVRD legend comes on.
    On the PRESS page of the lower ECAM DU:
  • The main flap of the skin air-outlet valve is fully closed with the internal flap in fully open position.
    After approximately 30 seconds, on the upper ECAM DU, the message that follows comes into view:
  • VENT BLOWER FAULT
  • VENT EXTRACT FAULT.
    On the panels 130VU and 131VU:
  • The MASTER CAUT lights come on and you can hear a single chime.
    In the nose landing-gear well:
  • You can hear the mechanic call horn.
NOTE: On the panel 108VU, push the RESET pushbutton switch to stop the mechanic call horn.
NOTE: -The extract fan continues to operate when the OVRD legend is on.
- The skin-exchanger isolation valve closes.
3.On the VENTILATION section of panel 22VU:
  • Push the BLOWER and the EXTRACT pushbutton switches.
On the VENTILATION section of panel 22VU:
  • On the BLOWER and the EXTRACT pushbutton switches, the OVRD legends go off.
    On the PRESS page of the lower ECAM DU:
  • The skin air-inlet valve (INLET) and the skin air-outlet valve (OUTLET) open.
NOTE: If the outside air temperature is less than 9 deg.C (48.20 deg.F), the valves stay closed.
On the upper ECAM DU:
  • The messages go out of view.
Subtask 21-26-00-710-052-D ** ON A/C NOT FOR ALL
A. Operational Test of the Smoke Configuration Control-Circuit
ACTION
RESULT
1.On the VENTILATION section of panel 22VU:
  • Release the BLOWER pushbutton switch.
On the VENTILATION section of panel 22VU:
  • On the BLOWER pushbutton switch, the OVRD legend comes on.
    The blower fan stops.
    On the PRESS page of the lower ECAM DU:
  • The skin air-inlet valve (INLET) and the skin air-outlet valve (OUTLET) close.
NOTE: The skin-exchanger isolation valve and the conditioned-air inlet valve open.
2.On the VENTILATION section of panel 22VU:
  • Release the EXTRACT pushbutton switch.
On the VENTILATION section of panel 22VU:
  • On the EXTRACT pushbutton switch, the OVRD legend comes on.
    On the PRESS page of the lower ECAM DU:
  • The main flap of the skin air-outlet valve is fully closed with the internal flap in fully open position.
    After approximately 30 seconds, on the upper ECAM DU, the message that follows comes into view:
  • VENT BLOWER FAULT
  • VENT EXTRACT FAULT.
    On the CAPT and F/O glareshield panels 130VU and 131VU:
  • The MASTER CAUT lights come on and you can hear a single chime.
    In the nose landing-gear well:
  • You can hear the mechanic call horn.
NOTE: On the external power panel 108VU, push the RESET pushbutton switch to stop the mechanic call horn.
NOTE: -The extract fan continues to operate when the OVRD legend is on.
- The skin-exchanger isolation valve closes.
3.On the VENTILATION section of panel 22VU:
  • Push the BLOWER and the EXTRACT pushbutton switches.
On the VENTILATION section of panel 22VU:
  • On the BLOWER and the EXTRACT pushbutton switches, the OVRD legends go off.
    On the PRESS page of the lower ECAM DU:
  • The skin air-inlet valve (INLET) and the skin air-outlet valve (OUTLET) open.
NOTE: If the outside air temperature is less than 9 deg.C (48.20 deg.F), the valves stay closed.
On the upper ECAM DU:
  • The messages go out of view.
5. Close-up
Subtask 21-26-00-860-057-A
A. Put the aircraft back to its initial configuration.
   (1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002).
Subtask 21-26-00-862-052-A
B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
Subtask 21-26-00-440-068-A ** ON A/C NOT FOR ALL
C. Reactivation of the Avionics-Ventilation Comfort Duct-Temperature-Sensor
   (1) Connect the electrical connector to the duct temperature sensor (Ref. AMM TASK 21-26-12-400-802).
[Rev.10 from 2021] 2026.04.02 06:11:00 UTC
"WTRUIB" 2025