(2)
Install the partition 161DW.
(3)
Set the CARGO COMP LT switch 8LU to OFF.
(4)
Close the AFT cargo-compartment door (Ref. TASK 52-30-00-860-002).
(5)
Close the potable water service-panel 171AL.
(6) Remove the access platform.
Subtask 30-72-52-862-050
E. De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
POTABLE WATER ICE PROTECTION - DESCRIPTION AND OPERATION
________________________________________________________
1. General
_______ R The potable water ice protection is installed to prevent ice formation in R the potable water system.
Ice formation in the potable water lines can cause a blockage or damage to
the water lines.
The potable water lines where icing conditions can occur are insulated and
heated by tape electrical heaters.
R A control unit through the temperature sensors controls the operation of the tape electrical heaters. The potable waste water from the galley and lavatory wash basins is dumped through the waste water drain lines and drain masts to atmosphere.
2. Component Location
__________________
R **ON A/C 001-049, 051-099, 101-105, 401-499,
(Ref. Fig. 001)
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL |ZONE | ACCESS | ATA | | | | DOOR | REF
-------------------------------------------------------------------------------3DW UNIT-CTL 132 825 30-73-34 4DW TAPE-HEATER 131 825 30-73-53 9DW TAPE-HEATER 131 825 30-73-53 10DW SENSOR 131 825 30-73-17 16DW TAPE-HEATER 131 825 30-73-53 40DU SENSOR 131 825 30-71-17 41DU TAPE-HEATER 131 825 30-71-53 42DU TAPE-HEATER 131 825 30-71-53
**ON A/C 106-149, 201-299,
**ON A/C 201-210,
(Ref. Fig. 002)
Potable Water Ice Protection - Component Location.
Figure 001
R 1EFF : 001-049, 051-099, 101-105, 151-199, 1 30-73-00Page 2 1201-210, 401-499, 1Aug 01/05 1 1 1CES 1
Potable Water Ice Protection - Component Location
Figure 002
R 1EFF : 001-049, 051-099, 101-105, 201-210, 1 30-73-00Page 3 1 1 May 01/05 1 1 1CES 1
R **ON A/C 106-149, 211-299,
R (Ref. Fig. 002A)
R **ON A/C 106-149, 201-299,
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL | ZONE | ACCESS | ATA | | | | DOOR | REF
-------------------------------------------------------------------------------3DW UNIT-CTL 132 825 30-73-34 4DW TAPE-HEATER 131 825 30-73-53 9DW TAPE-HEATER 131 825 30-73-53 10DW SENSOR 131 825 30-73-17 16DW TAPE-HEATER 131 825 30-73-53
R **ON A/C 151-199,
R (Ref. Fig. 002B)
R -------------------------------------------------------------------------------R FIN | FUNCTIONAL DESIGNATION | PANEL | ZONE | ACCESS | ATA R | | | | DOOR | REF R -------------------------------------------------------------------------------R 3DW UNIT-CTL 132 825 30-73-34 R 10DW SENSOR 131 825 30-73-17 R 4DW TAPE-HEATER 131 825 30-73-53 R 16DW TAPE-HEATER 131 825 30-73-53 R 333DW TAPE-HEATER 131 825 30-73-53 R 334DW TAPE-HEATER 131 825 30-73-53 R 335DW TAPE-HEATER 131 825 30-73-53
R 1EFF : 106-149, 151-199, 201-299, 1 30-73-00Page 4 1 1 May 01/05 1 1 1CES 1
Potable Water Ice Protection - Component Location R Figure 002A
R 1EFF : 106-149, 211-299, 1 30-73-00Page 5 1 1 May 01/05 1 1 1CES 1
Potable Water Ice Protection - Component Location
Figure 002B
R 1EFF : 151-199, 401-499, 1 30-73-00Page 6 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 301-399,
(Ref. Fig. 002C)
-------------------------------------------------------------------------------FIN | FUNCTIONAL DESIGNATION | PANEL | ZONE | ACCESS | ATA | | | | DOOR | REF -------------------------------------------------------------------------------
3DW UNIT-CTL 132 825 30-73-34
10DW SENSOR 131 825 30-73-17
4DW TAPE-HEATER 131 825 30-73-53
16DW TAPE-HEATER 131 825 30-73-53
311DW TAPE-HEATER 131 825 30-73-53
300DW SENSOR 131 825 30-73-17
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