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ZONE TEMPERATURE
The zone temperature indication is green.
XX: Invalid signal.
The cockpit and cabin compartment temperature is also
displayed on the CRUISE ECAM page.
Zone temperature is normally displayed in green.
XX(amber): Temperature data is not available.
TEMPERATURE UNIT
The temperature unit of measure is indicated in cyan.
ºC: Degrees Celcius.
TMUAIR508-T02 LEVEL 1
EFFECTIVITY 21-60-00 Page 4
Nov 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 38
ALL
ZONE TEMPERATURE CONTROL - ECAM PAGES PRESENTATION
TMUAIR508-P02 LEVEL 1
EFFECTIVITY 21-60-00 Page 5
Nov 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 39
ALL
THIS PAGE INTENTIONNALY LEFT BLANK
TMUAIR508 LEVEL 1
EFFECTIVITY 21-60-00 Page 6
Nov 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 40
ALL
21 - AIR CONDITIONING
21-60-00 ZONE TEMPERATURE CONTROL -
SYSTEM WARNINGS
CONTENTS:
Pack 1 (or 2) Overheat
Pack 1 (or 2) Fault
Pack 1 (or 2) Off
Pack 1 (or 2) Regulation Fault
Pack 1 + 2 Fault
Cockpit (or FWD Cabin or AFT Cabin) Duct Overheat
Hot Air Fault
Trim Air Sys Fault (Trim Air Valve Fault)
Zone Regulation Fault
Left + Right Cabin Fan Fault
Lavatory + Galley Fan Fault
Trim Air Sys Fault (Trim Air Sys Overpressure)
TMUAIR401 LEVEL 3
EFFECTIVITY 21-60-00 Page 1
Sep 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 41
ALL
TMUAIR401-P01 LEVEL 3
ZONE TEMPERATURE CONTROL - SYSTEM WARNINGS
EFFECTIVITY 21-60-00 Page 2
Sep 30/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 42
ALL
21 - AIR CONDITIONING
21-50-00 ZONE TEMPERATURE CONTROL -
FLOW CONTROL & PACK COMPONENTS
D/O
CONTENTS:
Ozone Filter (Option)
Flow Sensor - Flow Control Valve
ByPass Valve (BPV)
Ram Air Inlet Flap
Anti-ice Valve (AIV)
Air Cycle Machine (ACM)
Exchangers - Reheater - Condenser
Water Extractor
Check valve
Self Examination
TMUTEMD0A LEVEL 2
EFFECTIVITY 21-50-00 Page 1
Jul 31/00
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 21 AIR CONDITIONING
UF94200
EFFECTIVITY Page 43
ALL
ZONE TEMPERATURE CONTROL - FLOW CONTROL & PACK COMPONENTS D/O
OZONE FILTER (OPTION)
An ozone filter is installed upstream of each Flow
Control Valve. It is used for catalytic removal of
ozone from the hot bleed air supplied to the pack.
FLOW SENSOR - FLOW CONTROL VALVE
A flow sensor connected to the FCV senses a
differential pressure equivalent to the airflow
through the valve inlet. This differential pressure
is transformed into an electrical signal and sent to
the pack controller for actual flow calculation.
According to the actual flow calculation and the flow
demand, the pack controller generates an FCV drive
signal in order to control the FCV torque motor (M).
The valve butterfly is thus electro-pneumatically
operated.
The FCV has a shut-off solenoid (S), which is energized
in case of:
- engine start,
- opposite engine start provided the crossbleed
valve is detected open (the FCV reopens 30
seconds after the end of the engine start
sequence),
- ENG FIRE P/B released out,
- DITCHING P/B pressed in,
- applicable PACK P/B set to OFF.
The FCV also automatically closes in case of:
- low bleed pressure (valve spring loaded
closed),
- compressor overheat (muscle pressure venting
by means of the Compressor PNeumatic Overheat
Sensor(CPNOH)).
BYPASS VALVE (BPV)
The ByPass Valve regulates the pack discharge
temperature by adding hot bleed air to the air cycle
machine for quick pack response.
The ByPass Valve is electrically operated by a stepper
motor (M) controlled by the pack controller according
to the the water extractor temperature.
RAM AIR INLET FLAP
The ram air inlet flap modulates the airflow through
the exchangers in order to control the temperature of
the pack outlet.
The ram air inlet flap is actuated by an electric
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