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Trim Air Valve
Temperature Sensors
TMUVENL0A LEVEL 3
EFFECTIVITY 21-28-00 Page 1
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 273
ALL
FWD CARGO COMPARTMENT VENTILATION/HEATING - COMPONENTS
VENTILATION CONTROLLER
IDENTIFICATION
FIN: 10HN
LOCATION
ZONE: 126
COMPONENT DESCRIPTION
It is a modular construction and consists of:
- AFT cargo ventilation module,
- AFT cargo power relay,
- FWD cargo ventilation module,
- FWD cargo power relay,
- common power supply module,
- spare module connector,
- spare power relay socket.
TMUVENL0A-T01 LEVEL 3
EFFECTIVITY 21-28-00 Page 2
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 274
ALL
FWD CARGO COMPARTMENT VENTILATION/HEATING - COMPONENTS - VENTILATION CONTROLLER
TMUVENL0A-P01 LEVEL 3
EFFECTIVITY 21-28-00 Page 3
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 275
ALL
FWD CARGO COMPARTMENT VENTILATION/HEATING - COMPONENTS
HEATING CONTROLLER
IDENTIFICATION
FIN: 1HC
LOCATION
ZONE: 121
COMPONENT DESCRIPTION
The heating controller consists of a MCU box installed
in the avionics compartment, in rack 95 VU.
Power up test:
- computer internal tests,
- check of sensor,
- check for Trim Air Valve closure,
- check for HOT AIR Pressure Regulating Valve
closure.
Test duration: 40 seconds.
TMUVENL0A-T02 LEVEL 3
EFFECTIVITY 21-28-00 Page 4
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 276
ALL
FWD CARGO COMPARTMENT VENTILATION/HEATING - COMPONENTS - HEATING CONTROLLER
TMUVENL0A-P02 LEVEL 3
EFFECTIVITY 21-28-00 Page 5
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 277
ALL
FWD CARGO COMPARTMENT VENTILATION/HEATING - COMPONENTS
ISOLATION VALVES
IDENTIFICATION
FIN: 4HN, 5HN
LOCATION
ZONE: 132, 131
COMPONENT DESCRIPTION
The electrically operated butterfly valves consist of:
- a 28 VDC motor which drives a gear train,
- two microswitches (signal fully open/fully
closed position of isolation valves to the
ventilation controller),
- a manual override and visual position
indicator.
TMUVENL0A-T03 LEVEL 3
EFFECTIVITY 21-28-00 Page 6
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 278
ALL
FWD CARGO COMPARTMENT VENTILATION/HEATING - COMPONENTS - ISOLATION VALVES
TMUVENL0A-P03 LEVEL 3
EFFECTIVITY 21-28-00 Page 7
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 279
ALL
FWD CARGO COMPARTMENT VENTILATION/HEATING - COMPONENTS
EXTRACTION FAN
IDENTIFICATION
FIN: 6HN
LOCATION
ZONE: 132
COMPONENT DESCRIPTION
The extraction FAN is:
- powered by a 3 phase 4 pole induction motor,
the fan runs at about 11700 rpm,
- thermal switches isolate the electrical supply
in case of stator temperature of 140°C (284°F),
- a relay signals malfunction to the ECAM and
to the CFDS via the ventilation controller.
TMUVENL0A-T04 LEVEL 3
EFFECTIVITY 21-28-00 Page 8
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 280
ALL
FWD CARGO COMPARTMENT VENTILATION/HEATING - COMPONENTS - EXTRACTION FAN
TMUVENL0A-P04 LEVEL 3
EFFECTIVITY 21-28-00 Page 9
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 281
ALL
FWD CARGO COMPARTMENT VENTILATION/HEATING - COMPONENTS
PRESSURE SWITCH
IDENTIFICATION
FIN: 21HN
LOCATION
ZONE: 132
COMPONENT DESCRIPTION
The pressure switch consists of a body with two
pressure ports, a diaphgrapm, a spring, a microswitch
and an electrical connector.
When the DP reaches 1 psi, the spring snaps over and
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