AIR SUPPLY - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
1. General
The air supply system supplies pressurized air to the potable water system (Ref. AMM D/O 38-10-00-00). The pressurized air moves the potable water from the potable water tank to the galleys and lavatories.
** ON A/C NOT FOR ALL The air supply system supplies pressurized air to the potable water system (Ref. AMM D/O 38-10-00-00). The pressurized air moves the potable water from the potable water tank to the galleys and lavatories.
2. Component Location
For the location of the components in the air supply system, refer to the chapter air supply system (Ref. AMM D/O 38-41-00-00).
For the location of the components in the air supply system refer to the chapter:
for Air Supply System (Ref. AMM D/O 38-41-00-00).
for Air Depressurization System (Ref. AMM D/O 38-41-00-00).
For the location of the components in the air supply system refer to the chapter:
for Air Supply System (Ref. AMM D/O 38-41-00-00).
for Air Supply boost System (Ref. AMM D/O 38-42-00-00).
for Air Depressurization System (Ref. AMM D/O 38-41-00-00).
** ON A/C NOT FOR ALL For the location of the components in the air supply system, refer to the chapter air supply system (Ref. AMM D/O 38-41-00-00).
For the location of the components in the air supply system refer to the chapter:
for Air Supply System (Ref. AMM D/O 38-41-00-00).
for Air Depressurization System (Ref. AMM D/O 38-41-00-00).
For the location of the components in the air supply system refer to the chapter:
for Air Supply System (Ref. AMM D/O 38-41-00-00).
for Air Supply boost System (Ref. AMM D/O 38-42-00-00).
for Air Depressurization System (Ref. AMM D/O 38-41-00-00).
3. System Description
Bleed air from the main engines or Auxiliary Power Unit (APU) supplies the air to pressurize the potable water system. On the ground you can use a ground air-pressure supply when the engines or APU bleed air are not available.
The pressure for the potable water system is between 25 psi (1.72 bar) and 28 psi (1.93 bar)
(Ref. AMM D/O 38-41-00-00).
Depressurization system
The depressurization system is to rapidly release the pressure in the potable water system from the FAP.
When you operate the depressurization system:
The air-supply boost system supplies the pressure to the potable water system if no bleed air pressure is available. It makes sure that the potable water system works at the correct pressure (Ref. AMM D/O 38-42-00-00).
** ON A/C NOT FOR ALL Bleed air from the main engines or Auxiliary Power Unit (APU) supplies the air to pressurize the potable water system. On the ground you can use a ground air-pressure supply when the engines or APU bleed air are not available.
The pressure for the potable water system is between 25 psi (1.72 bar) and 28 psi (1.93 bar)
(Ref. AMM D/O 38-41-00-00).
Depressurization system
The depressurization system is to rapidly release the pressure in the potable water system from the FAP.
When you operate the depressurization system:
- The air pressure in the potable water system is released
- The water in the overfloor area drains back into the underfloor, heated part of the potable water system.
The air-supply boost system supplies the pressure to the potable water system if no bleed air pressure is available. It makes sure that the potable water system works at the correct pressure (Ref. AMM D/O 38-42-00-00).
4. Interface
The air supply system has interfaces with:
The air supply system has interfaces with:
- The bleed air system (Ref. AMM D/O 36-11-00-00)
- The potable water system (Ref. AMM D/O 38-10-00-00).