Potable Water Draining - Component Location. Figure 001 (SHEET 1)
R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 38-14-00Page 2 1 1 May 01/05 1 1 1CES 1

 Potable Water Draining - Component Location. Figure 001 (SHEET 2)
R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 38-14-00Page 3 1 1 May 01/05 1 1 1CES 1

 Potable Water Draining - Component Location
 Figure 001A

R 1EFF : 151-199, 301-399, 401-499, 1 38-14-00Page 4 1 1 Aug 01/05 1 1 1CES 1

 **ON A/C ALL

 3. Description
___________
 **ON A/C 001-049, 051-099, 101-149, 201-299,
 (Ref. Fig. 002) Three drain valves and drain ports are installed in the potable water system. The drain valve 14MP drains the potable water tank and the center section of the potable-water distribution system. The motorized drain valve 4MP drains the system's front section. The motorized fill/drain valve 16MA drains the system's rear section. The fill/drain control handle 3254MM which is located on the potable water service panel 2023VU opens the fill/drain valve 16MA. The limit switch 3MP is energized to operate the related overflow and drain valves. The overflow valve 8MP opens to let air into the potable water tank.

R **ON A/C 151-199, 301-399, 401-499,
 (Ref. Fig. 002A) Two drain valves and two drain ports are installed in the potable water system. The fill/overflow drain valve 8MA drains the rear section of the potable-water distribution system. The motorized drain valve 4MP drains the system's front section. The fill/drain control handle which is located on the potable water service panel 2023VU opens the two drain valves at the same time. You can drain the potable water system fully through the two drain ports.
 **ON A/C ALL
 4. Operation
_________

 Water Draining - Electrical Schematic
 Figure 002

R 1EFF : 001-049, 051-099, 101-149, 201-299, 1 38-14-00Page 6 1 1 May 01/05 1 1 1CES 1

 Water Draining - Electrical Schematic
 Figure 002A

R 1EFF : 151-199, 301-399, 401-499, 1 38-14-00Page 7 1 1 Aug 01/05 1 1 1CES 1 **ON A/C 001-049, 051-099, 101-149, 201-299,

 You turn the control handle to DRAIN and pull it out to the stop. This opens the fill/drain valve 16MA and closes the limit switch 3MP. The motorized overflow valve 8MP and the motorized drain valves 4MP and 14MP are energized and move to the open position. On the potable water service panel 2023VU, the drain valve control lights 2MP and 12MP and the overflow valve control light 6MP come on. When the system has drained, you push and turn the control handle to the NORMAL position. The limit switch 3MP opens, the three valves close and the control lights go off. If electric power is not available, you can open the valves manually with the handles installed on the potable water service and the drain panels. The handles are marked SHUT/OPEN.

R **ON A/C 151-199, 301-399, 401-499,
 When you set the control handle to 'DRAIN' and pull it out to its stop, the fill/overflow drain valve opens. This procedure also closes the limit switch 3MP which energizes and moves the motorized drain valve 4MP to the open position. The drain valve control-light 2MP, which is located on the potable water service panel 2023VU, comes on when the motorized drain valve 4MP opens. The two valves close when the system has drained and the control handle is pushed in and set to 'NORMAL'. The drain valve control-light will also go off. You can open the motorized drain valve manually, if electrical supply is not available. A handle, which is located on the drain panel, opens the valve when you move it from SHUT to DRAIN.

 WATER DRAINING (DUMP) - MAINTENANCE PRACTICES
_____________________________________________
 TASK 38-14-00-960-001
 Indication Lamp Replacement
 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE  QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific  adjustable access platform
 No specific warning notice R No specific Torque Wrench : range 0.00 to 1.20 m.daN R (0.00 to 9.00 lbf.ft)
 B. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
24-42-00-861-001  Energize the Ground Service Network from the External Power 24-42-00-862-001 De-energize the Ground Service Network Supplied from the External Power 38-14-00-991-001 Fig. 201
　
中國航空網(wǎng) www.k6050.com
航空翻譯 www.aviation.cn
本文鏈接地址：A320飛機維護手冊 AMM WATER/WASTE 1(67)