11.17 Flashcards
What is used to transport potable water?
A pressurisation tank system or an electric one
What is used for a water pressurisation system?
Aircraft pneumatic system
What is used to prevent pressurised air from contaminating water?
A cellulose air filter
What is used when bleed air is unavailable in a water pressurisation system?
An electrical air compressor
What are isolation valves used for in potable water systems?
Maintenance and removing or installing modular units
Where is the potable water system tank?
Under the cabin floor often in the cargo walls
When is it necessary to completely drain potable drinking water?
-before disinfecting
-when parked in freezing weather
-at least every three years
Where is potable water level shown?
On the flight attendants panel
What does the ‘header’ do?
Supply’s water to the toilet, water heater, mixer valve and wash basin
What is the function of the mixer valve?
Mixed the cold and hot water for the basin
What is the design of the water heater?
It has a small reservoir 1.5 litres with a high wattage heating element.
It has a manual on off indicating light, pressure relief valve, and an overheat switch.
What are the two types of aircraft toilet?
Flush motor/ vacuum
How does a flushable toilet work?
Flushing liquid is sprayed through filters into a bowl in a swirling motion the waste is collected
When is a vacuum generator used in vacuum toilets?
On the ground or in low altitude
