Waste Water Ice Protection - Electrical Schematic
Figure 006
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A test button located on top of the control unit, when pressed will start an
internal BITE test to check the system.
Two light emmiting diodes (LED) in the control unit show the correct status
of the system " Heater OK " and " Unit OK ".
**ON A/C 051-051,
(Ref. Fig. 007, 008) The waste water ice protection system cannot be controlled manually. The waste water ice protection system operates automatically when the related circuit breakers are closed. The system is available with the aircraft electrical-circuits energized and through closed circuit breakers 1DU, 20DU, 11DU, 21DU, 32DU, 1DW and 2DW. 115 V AC is supplied from the normal busbar 212XP-A to the control unit 5DU which controls the heater of fwd drain mast 4DU. 115 V AC is supplied from the GND/FLT busbar 212XP-C to the control unit 15DU which controls the heater of aft drain mast 14DU. 115 V AC is supplied from the GND/FLT busbar 212XP-B to the FWD air stop drain valve thermostat which controls the operation of the air stop drain valve heater. 115 V AC is supplied from the GND/FLT busbar 212XP-C to the control unit 25DU which controls the thermostat and heaters of the middle drain mast 24DU. 115 V AC is supplied from the GRN/FLT busbar 212XP-C to the AFT air stop drain-valve thermostat which controls the operation of the air stop drain valve heater. The control unit 33DW controls the related sensor and heaters installed on the drain lines of the aft cargo compartment drainage system. 115 V AC is supplied from the GND/FLT busbar 212XP-C to the control unit 3DW. 28 V DC is supplied from the GND/FLT busbar 602PP to the control unit 3DW. The control unit 3DW controls the related sensor and heaters installed on the drain lines of the fwd cargo compartment drainage system. The sensor measures the waste water drain lines permamently, the control unit compares the measured values with the stored reference values. When icing conditions occure the control unit will turn on the power supply to the tape heating circuits. A test button located on top of the control unit, when pressed will start an internal BITE test to check the system. Two light emmiting diodes (LED) in the control unit show the correct status of the system " Heater OK " and " Unit OK ".
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Waste Water Ice Protection - Electrical Schematic R Figure 006A
R 1EFF : 301-399, 1 30-71-00Page 22 1 1 May 01/05 1 1 1CES 1R Waste Water Ice Protection - Electrical Schematic. R Figure 007
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Drainmast Ice Protection - Electrical Schematic R Figure 007A
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Drainmast Ice Protection - Electrical Schematic
Figure 007B
R 1EFF : 151-199, 401-499, 1 30-71-00Page 25 1 1 Aug 01/05 1 1 1CES 1R Waste Water Ice Protection - Electrical Schematic R Figure 008
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**ON A/C 106-149, 201-299,
(Ref. Fig. 006)
**ON A/C 106-149, 211-299,
(Ref. Fig. 007A)
**ON A/C 106-149, 201-299,
R R R R R R R R The waste water ice-protection system cannot be controlled manually. The waste water ice-protection system operates automatically when the related circuit breakers are closed. The system is available with the energized aircraft electrical-circuits and through the closed circuit breakers 1DU, 11DU, 1DW and 2DW. 115 V AC is supplied from the normal busbar 110XP-B to the control unit 5DU which controls the heater of the forward drain mast 4DU. 115 V AC is supplied from the GND/FLT busbar 210XP-C to the control unit 15DU which controls the heater of the aft drain mast 14DU. 115 V AC is supplied from the GND/FLT busbar 212XP-C through the closed circuit breaker 1DW to the control unit 3DW. 28 V DC is supplied from the GND/FLT busbar 602PP through the closed circuit breaker 2DW to the control unit 3DW. Control unit 3DW controls the related sensor 40DU and heaters 41DU and 42DU installed on the waste water drain-lines. The sensor measures the temperature of the waste water drain-lines permanently, the control unit compares the measured values with the stored reference values. When icing conditions occure the control unit will turn on the power supply to the tape heating circuits. A test button located on top of the control unit, when pressed will start an internal BITE test to check the system. Two light emmiting diodes (LED) in the control unit show the correct status of the system " Heater OK " and " Unit OK ".
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本文鏈接地址：A320飛機維護手冊 AMM ICE AND RAIN PROTECTION 防冰和排雨2(51)
