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Computer provided that the BLOWER and EXTRACT
pushbuttons are set to AUTO.
BLOWER PUSHBUTTON
In case of system malfunction, the FAULT light comes
on amber and disappears when the BLOWER pushbutton
switch is set to OVERRIDE.
FAULT: -Blowing pressure low
-Duct overheat
-Computer power supply failure
-Smoke warning
OVRD: -The system goes to closed circuit
configuration.
-Air from air conditioning system is added to
ventilation air.
-The blower fan stops.
NOTE: If EXTRACT and BLOWER pushbuttons are selected
OVRD, the blower fan stops, the skin exchanger
outlet bypass and skin exchanger inlet bypass
valves close, the air conditioning inlet valve
open and the skin air outlet valve partially
opens.
EXTRACT PUSHBUTTON
In case of system malfunction, the FAULT light
comes on amber and disappears when the EXTRACT
pushbutton switch is set to OVERRIDE.
FAULT: -Extract pressure low
-Computer power supply failure
-Smoke warning
OVRD: -The system goes to closed circuit
configuration.
-Air from air conditioning system is added to
ventilation air.
SKIN AIR INLET VALVE
The skin air inlet valve position indication is
normally green and becomes amber in case of
disagreement or during transit.
The INLET indication is normally white. It becomes
amber in case of blower fan fault.
VENT INDICATION
The VENT indication is normally white. It becomes amber
in case of blower fan fault or extract fan fault.
VENT: Normal (white)
VENT: Blower or Extract fan fault (amber)
SKIN AIR OUTLET VALVE (EXTRACT VALVE)
The skin air outlet valve position indication is
normally green and becomes amber in case of
disagreement. The EXTRACT indication is normally
white. It becomes amber in case of extract fan fault.
TMUVEN903-T01 LEVEL 1
EFFECTIVITY 21-26-00 Page 2
Sep 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 206
ALL
AVIONICS VENTILATION - SYSTEM CONTROLS AND INDICATING
TMUVEN903-P01 LEVEL 1
EFFECTIVITY 21-26-00 Page 3
Sep 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 207
ALL
THIS PAGE INTENTIONNALY LEFT BLANK
TMUVEN903 LEVEL 1
EFFECTIVITY 21-26-00 Page 4
Sep 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 208
ALL
21 - AIR CONDITIONING
21-26-00 AVIONICS VENTILATION -
SYSTEM WARNINGS
CONTENTS:
Blower Fault
Extract Fault
Skin Valve Fault
Avionics System Fault
Avionics Smoke
TMUVEN501 LEVEL 3
EFFECTIVITY 21-26-00 Page 1
Nov 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 209
ALL
AVIONICS VENTILATION - SYSTEM WARNINGS
BLOWER FAULT
Aural warning sounds, MASTER CAUT and BLOWER FAULT
lights come on. VENT and INLET words become amber on
the ECAM in case of low blowing pressure or duct
overheat.
TMUVEN501-T01 LEVEL 3
EFFECTIVITY 21-26-00 Page 2
Nov 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 210
ALL
AVIONICS VENTILATION - SYSTEM WARNINGS - BLOWER FAULT
TMUVEN501-P01 LEVEL 3
EFFECTIVITY 21-26-00 Page 3
Nov 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 211
ALL
AVIONICS VENTILATION - SYSTEM WARNINGS
EXTRACT FAULT
Aural warning sounds, MASTER CAUT and EXTRACT FAULT
lights come on. VENT and EXTRACT words become amber
on the ECAM in case of low extract pressure.
TMUVEN501-T02 LEVEL 3
EFFECTIVITY 21-26-00 Page 4
Nov 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 212
ALL
AVIONICS VENTILATION - SYSTEM WARNINGS - EXTRACT FAULT
TMUVEN501-P02 LEVEL 3
EFFECTIVITY 21-26-00 Page 5
Nov 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 213
ALL
AVIONICS VENTILATION - SYSTEM WARNINGS
SKIN VALVE FAULT
Aural warning sounds, MASTER CAUT comes on. The skin
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