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Self Examination
TMUIC2205 LEVEL 1
EFFECTIVITY 30-45-00 Page 1
Jul 23/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 85
ALL
WINDSHIELD RAIN PROTECTION-RAIN REPELLENT SYSTEM PRESENTATION
FUNCTION
In heavy rain conditions, a rain repellent liquid,
stored in a pressurized bottle, may be sprayed on the
windshield to improve visibility.
The spray nozzles are permanently purged by air from
cabin hot air supply.
CONTROL
When the rain repellent pushbutton is pressed in, the
solenoid valve opens for a short time.
This causes a measured quantity of rain repellent
liquid to be sprayed onto the related windshield.
To repeat the cycle, the pushbutton must be pressed
again.
On ground, the rain repellent system is inhibited when
both engines are shut down.
CAUTION
The rain repellent liquid is very corrosive.
So do not use rain repellent liquid on a dry windshield.
In event of inadvertent application, wash at the
earliest opportunity.
TMUIC2205-T01 LEVEL 1
EFFECTIVITY 30-45-00 Page 2
Jul 23/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 86
ALL
WINDSHIELD RAIN PROTECTION-RAIN REPELLENT SYSTEM PRESENTATION
TMUIC2205-P01 LEVEL 1
EFFECTIVITY 30-45-00 Page 3
Jul 23/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 87
ALL
SELF EXAMINATION
When is the rain repellent system inhibited ?
A - In flight.
B - On ground.
C - On ground when the engines are shut down.
What should be done in case of inadvertent
application ?
A - Wash at the earliest opportunity.
B - Wash at the next overhaul.
C - No action is necessary.
TMUIC2205 LEVEL 1
EFFECTIVITY 30-45-00 Page 4
Jul 23/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 88
ALL
30 - ICE AND RAIN PROTECTION
30-45-00 WINDSHIELD RAIN PROTECTION-RAIN
REPELLENT SYSTEM DESCRIPTION AND
OPERATION
CONTENTS:
General
Rain Repellent Circuit
Purge Circuit
Operation
Self Examination
TMUICE605 LEVEL 3
EFFECTIVITY 30-45-00 Page 1
Aug 31/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 89
ALL
WINDSHIELD RAIN PROTECTION-RAIN REPELLENT SYSTEM DESCRIPTION AND OPERATION
GENERAL
The system is designed to improve visibility through
the windshield in heavy rain, particulary when the
wipers are not sufficient.
The system operates independently on the captain side
and on the first officer side.
RAIN REPELLENT CIRCUIT
The rain repellent fluid used is of type 3 and is
package in a nitrogen pressurized can.
The can is directly fitted to the rain repellent fluid
gage. A purge pushbutton is used when the can is
replaced.
A nozzle sprays the rain repellent fluid onto the
related windshield through four orifices.
PURGE CIRCUIT
The spray nozzle lines are permanently purged by air
from cabin hot air supply.
The blow out reservoir works as a pressure accumulator,
a decanting reservoir and has a test connection.
OPERATION
Upon actuation of the pushbutton switch, the time
controlled solenoid valve of the associated side
enables fluid release to the spray nozzle for a preset
period of time
The solenoid valve is preset for a period of 0.4 second.
To initiate a new cycle, it is necessary to release,
then to press the pusbutton switch again. Between each
cycle, the lines are automatically and permanently
purged by hot air.
The pressure indication shows the nitrogen pressure
in the bottle. When the needle is in the yellow range,
or the can is completly empty, the bottle should be
replaced.
TMUICE605-T01 LEVEL 3
EFFECTIVITY 30-45-00 Page 2
Aug 31/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 90
ALL
WINDSHIELD RAIN PROTECTION-RAIN REPELLENT SYSTEM DESCRIPTION AND OPERATION
TMUICE605-P01 LEVEL 3
EFFECTIVITY 30-45-00 Page 3
Aug 31/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
　
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