W DOC AIRBUS | AMM A320F

BITE Test of the Potable Water Ice-Protection

TASK 30-73-00-740-001-A
BITE Test of the Potable Water Ice-Protection

ZONE: 130
ZONE: 150
FIN: 23DW ** ON A/C NOT FOR ALL
FIN: 3DW
FIN: 33DW ** ON A/C NOT FOR ALL
FIN: 53DW ** ON A/C NOT FOR ALL
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
FOR [23DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
No specific
1
ACCESS PLATFORM 2M (6 FT)
FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
No specific
1
ACCESS PLATFORM 2M (6 FT)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
130
FWD CARGO COMPT AFT BULKHEAD OF AVNCS COMPT TO FWD PRESSURE BULKHEAD OF WING CENTER BOX
150
AFT CARGO COMPARTMENT FWD PRESS BULKHEAD TO AFT BULKHEAD OF AFT CARGO COMPARTMENT
FOR [23DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
132JW
FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
132JW
FOR [33DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION- or CONTROL UNIT, POTABLE WATERICE PROTECTION-)
FOR [53DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
152FW
 C. 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)
FOR [23DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
TASK 25-54-12-000-003-A
Removal of the Sidewall Panels in the Forward Cargo Compartment
TASK 25-54-12-400-003-A
Installation of the Sidewall Panels in the Forward Cargo Compartment
TASK 52-30-00-860-001-A
Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A
Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-003-A
Open the FWD or Aft Cargo-Compartment Door with the Hand Pump
TASK 52-30-00-860-004-A
Close the FWD or Aft Cargo-Compartment Door with the Hand Pump
FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
TASK 25-54-12-000-003-A
Removal of the Sidewall Panels in the Forward Cargo Compartment
TASK 25-54-12-400-003-A
Installation of the Sidewall Panels in the Forward Cargo Compartment
TASK 52-30-00-860-001-A
Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A
Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-003-A
Open the FWD or Aft Cargo-Compartment Door with the Hand Pump
TASK 52-30-00-860-004-A
Close the FWD or Aft Cargo-Compartment Door with the Hand Pump
FOR [33DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION- or CONTROL UNIT, POTABLE WATERICE PROTECTION-)
FOR [53DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
TASK 25-55-11-000-003-A
Removal of the Sidewall Panels in the Aft Cargo Compartment - FR47/FR59
TASK 25-55-11-400-003-A
Installation of the Sidewall Panels in the Aft Cargo Compartment - FR47/FR59
TASK 52-30-00-860-001-A
Open the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-002-A
Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
TASK 52-30-00-860-003-A
Open the FWD or Aft Cargo-Compartment Door with the Hand Pump
TASK 52-30-00-860-004-A
Close the FWD or Aft Cargo-Compartment Door with the Hand Pump
3. Job Set-up
Subtask 30-73-00-861-051-A
A. Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
Subtask 30-73-00-865-056-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
2000VUPOT/WASTE WIP-HEATER-LINE21DWA03
2000VUPOT/WASTE WIP-HEATER-LINE1DWA02
2000VUPOT/WASTE WIP-HEATER-CTL2DWA01
** ON A/C NOT FOR ALL
2000VUPOT WIP-HEATER-LINE21DWA03
** ON A/C NOT FOR ALL
2000VUPOT WIP-HEATER-LINE1DWA02
2000VUPOT WIP-HEATER-CTL2DWA01
** ON A/C NOT FOR ALL
2001VUPOT/WASTE WIP-HEATER-CTL32DWD02
** ON A/C NOT FOR ALL
2001VUPOT/WASTE WIP-HEATER-LINE51DWD04
2001VUPOT/WASTE WIP-HEATER-LINE31DWD03
** ON A/C NOT FOR ALL
2001VUPOT/WASTE WIP HEATER CTL32DWD02
Subtask 30-73-00-010-051-A ** ON A/C NOT FOR ALL
C. Get Access
   (1) FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
     (a) Open the forward cargo-compartment door (Ref. AMM TASK 52-30-00-860-001) or (Ref. AMM TASK 52-30-00-860-003).
     (b) Put an ACCESS PLATFORM 2M (6 FT) in position.
     (c) Set the CARGO COMP LT switch 6LU to ON.
     (d) Remove the sidewall panel 132JW (Ref. AMM TASK 25-54-12-000-003).
Subtask 30-73-00-010-051-B ** ON A/C NOT FOR ALL
C. Get Access
   (1) FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-), [23DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
     (a) Open the forward cargo-compartment door (Ref. AMM TASK 52-30-00-860-001) (Ref. AMM TASK 52-30-00-860-003).
     (b) Put an ACCESS PLATFORM 2M (6 FT) in position.
     (c) Set cargo-compartment light switch 6LU to ON.
     (d) Remove sidewall panel 132JW (Ref. AMM TASK 25-54-12-000-003).
   (2) FOR [33DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION- or CONTROL UNIT, POTABLE WATERICE PROTECTION-), [53DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
     (a) Open the aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-001) (Ref. AMM TASK 52-30-00-860-003).
     (b) Put an ACCESS PLATFORM 2M (6 FT) in position.
     (c) Set cargo-compartment light switch 8LU to ON.
     (d) Remove sidewall panel 152FW (Ref. AMM TASK 25-55-11-000-003).
Subtask 30-73-00-010-051-E ** ON A/C NOT FOR ALL
C. Get Access
   (1) FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-), [23DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
   (2) FOR [33DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-), [53DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
4. Procedure
Subtask 30-73-00-740-050-B ** ON A/C NOT FOR ALL
A. Do this test
NOTE: The control units 3DW, 23DW, 33DW and 53DW control and monitors heaters of the potable-water ice protection system (HTR I/II) and of the waste-water ice protection system (HTR III/IV). The result of waste-water ice- protection system is indicated in parentheses, because the principal interest of this test is the potable-water ice protection.
ACTION
RESULT
1.On control unit 3DW:
  • Push and hold the TEST pushbutton switch.
On control unit 3DW:
  • The green LEDs I/II (III/IV) comes on.
  • Release the TEST pushbutton switch.
  • The green LEDs I/II (III/IV) goes off.
2.On control unit 23DW:
  • Push and hold the TEST pushbutton switch.
On control unit 23DW:
  • The green LED I/II and/or (III/IV) come on.
  • Release the TEST pushbutton switch.
  • The green LED I/II and/or (III/IV) go off.
3.On control unit 33DW:
  • Push and hold the TEST pushbutton switch.
On control unit 33DW:
  • The green LEDs III/IV (I/II) comes on.
  • Release the TEST pushbutton switch.
  • The green LEDs III/IV (I/II) goes off.
4.On control unit 53DW:
  • Push and hold the TEST pushbutton switch.
On control unit 53DW:
  • The green LEDs I/II and (III/IV) come on.
  • Release the TEST pushbutton switch.
  • The green LEDs I/II and (III/IV) go off.
Subtask 30-73-00-740-050-C ** ON A/C NOT FOR ALL
A. Do this test.
NOTE: The control unit 3DW controls and monitors heaters of the potable-water ice protection system (HTR I/II) and of the waste-water ice protection system (HTR III/IV). The result of HTR III/IV is indicated in parentheses, because the principal interest of this test is the potable-water ice protection.
ACTION
RESULT
1.On the control unit 3DW:
  • Push and hold the TEST pushbutton switch.
On the control unit 3DW:
  • The green LEDs I/II and (III/IV) come on.
  • Release the TEST pushbutton switch.
  • The green LEDs I/II and III/IV go off.
Subtask 30-73-00-740-050-I ** ON A/C NOT FOR ALL
A. Do this test.
NOTE: The control units 3DW, 23DW, 33DW and 53DW control and monitors heaters of the potable-water ice protection system (HTR I/II and III/IV) and of the waste-water ice protection system (HTR V/VI). The result of waste-water ice protection system is indicated in parentheses, because the principal interest of this test is the potable-water ice protection.
ACTION
RESULT
1.On the control unit 3DW:
  • Push and hold the TEST pushbutton switch.
On the control unit 3DW:
  • The green LEDs I/II (V/VI) come on.
  • Release the TEST pushbutton switch.
  • The green LEDs I/II (V/VI) go off.
2.On the control unit 23DW:
  • Push and hold the TEST pushbutton switch.
On the control unit 23DW:
  • The green LED I/II comes on.
  • Release the TEST pushbutton switch.
  • The green LED I/II goes off.
3.On the control unit 33DW:
  • Push and hold the TEST pushbutton switch.
On the control unit 33DW:
  • The green LEDs I/II and III/IV come on.
  • Release the TEST pushbutton switch.
  • The green LEDs I/II and III/IV go off.
4.On the control unit 53DW:
  • Push and hold the TEST pushbutton switch.
On the control unit 53DW:
  • The green LED I comes on.
  • Release the TEST pushbutton switch.
  • The green LED I goes off.
Subtask 30-73-00-740-050-J ** ON A/C NOT FOR ALL
A. Do this test.
ACTION
RESULT
1.On control unit 3DW:
  • Push and hold the TEST pushbutton switch.
On control unit 3DW:
  • The green LED HEATER I/II and HEATER III/IV come on.
  • Release the TEST pushbutton switch.
  • The green LED HEATER I/II and HEATER III/IV go off.
2.On control unit 23DW:
  • Push and hold the TEST pushbutton switch.
On control unit 23DW:
  • The green LED HEATER I/II comes on.
  • Release the TEST pushbutton switch.
  • The green LED HEATER I/II goes off.
3.On control unit 33DW:
  • Push and hold the TEST pushbutton switch.
On control unit 33DW:
  • The green LED HEATER I/II and HEATER III/IV come on.
  • Release the TEST pushbutton switch.
  • The green LED HEATER I/II and HEATER III/IV go off.
4.On control unit 53DW:
  • Push and hold the TEST pushbutton switch.
On control unit 53DW:
  • The green LED HEATER I/II and HEATER III/IV come on.
  • Release the TEST pushbutton switch.
  • The green LED HEATER I/II and HEATER III/IV go off.
5. Close-up
Subtask 30-73-00-410-052-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
     (a) Install the sidewall panel 132JW (Ref. AMM TASK 25-54-12-400-003).
     (b) Set the CARGO COMP LT switch 6LU to OFF.
     (c) Remove the access platform.
     (d) Close the forward cargo-compartment door (Ref. AMM TASK 52-30-00-860-002) or (Ref. AMM TASK 52-30-00-860-004).
Subtask 30-73-00-410-052-B ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-), [23DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
     (a) Install sidewall panel 132JW (Ref. AMM TASK 25-54-12-400-003).
     (b) Set cargo-compartment light switch 6LU to OFF.
     (c) Remove the access platform(s).
     (d) Close the forward cargo-compartment door (Ref. AMM TASK 52-30-00-860-002) (Ref. AMM TASK 52-30-00-860-004).
   (3) FOR [33DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION- or CONTROL UNIT, POTABLE WATERICE PROTECTION-), [53DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
     (a) Install sidewall panel 152FW (Ref. AMM TASK 25-55-11-400-003).
     (b) Set cargo-compartment light switch 8LU to OFF.
     (c) Remove the access platform(s).
     (d) Close aft cargo-compartment door (Ref. AMM TASK 52-30-00-860-002) (Ref. AMM TASK 52-30-00-860-004).
Subtask 30-73-00-410-052-E ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) FOR [3DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-), [23DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
  • Install the sidewall panel 132JW.
   (3) FOR [33DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-), [53DW] (CONTROL UNIT, POTABLE WATERICE PROTECTION-)
  • Install the sidewall panel 152FW.
Subtask 30-73-00-862-051-A
B. De-energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-862-002).
[Rev.10 from 2021] 2026.04.01 00:32:29 UTC
"Aviabrain" 2025