Airbus 320 Air Conditioning

BLEED

CAUTION, do not use HP GND air with APU bleed

Regulated pressure 44 +/- 4 psi Leak detection - single loop for APU and pylon ducts - double loop for wing ducts

SKIN EXCH OUTLET BYPASS VLV

Temperature control - HI TEMP if 290°C > 5sec or 270°C > 15sec or 257°C > 55sec - LO TEMP if < 150°C Pressure control - HI PRESS if > 60psi - LO PRESS if < 4psi

AVIONICS VENTILATION CONFIGURATIONS: CLOSED, on GND (skin9°-12°C) SMOKE CONFIG Air from avionics bay

ENG A/ICE VALVE ENG 1 [DC1] ENG 2 [DC2] valve opens if unpowered

SKIN HEAT EXCHANGER

AEVC [DC1] [DC ESS SHED]

5th 9th

PACK 1 FLOW CONTROL VALVE [DC ESS SHED]

SKIN AIR INLET VLV

AIRCOND INLET VALVE

BLEED VALVE ENG 1 [DC ESS SHED] ENG 2 [DC2] STARTER VLV

pressure indication OVERPRESS VALVE (85psi)

HYD RES

WATER TANK

SAFETY VALVES WING ANTI ICE VLV [AC ESS SHED] Valve closes if unpowered

HP GND CONNECT

only SLATS 3,4 & 5 are heated

OUTFLOW VALVE

APU

ELECTRONIC APU LIMITATIONS CONTROL BOX BLEED RPM min 95%, max 107% (auto shut down) [BAT] VALVE running EGT max 682°C (5sec) or 700-742 start EGT max 900°C > 25'000ft B start EGT max 982°C < 25'000ft APU FF LOW OIL LEVEL => 10 hrs APU ops start cycles: S 1min S 1min S 60min APU Enveloppe: STARTER START with AC pwr up to 39'000ft [BAT] START with EMER ELEC pwr up to 25'000ft APU LP VLV BLEED ON 2packs max 15'000ft, 1 pack max 20'000ft [DC BAT] BLEED ON for engine start max 20'000ft [HOT 1] BLEED for WING A/ICE not permitted APU FUEL FLOW ~130 kg/hr APU PUMP [DC BAT] P [AC ESS SHED]

FF

FWD CARGO COMP

B2

MOT 1 [DC ESS]

CPC 1 [DC ESS]

MAN MOT [DC BAT]

MAN V/S SWITCH

MOT 2 [DC2]

CPC 2 [DC2]

A321 only

OUTLET ISOL VALVE

SMOKE DETECT CONTROL UNIT SDCU CH1 [DC ESS SHED] CH2 [DC2]

SQUIBS B [DC BAT]

EXTRACT FAN [AC1] AFT CARGO COMP

A321 only

BULK INLET ISOL VALVE CABIN AMBIENT AIR

ZONE CTL CH1 [AC1/DC1] CH2 [AC2/DC2]

B1

X-BLEED VLV AUTOCTL [DC2] MANCTL [DC ESS SHED]

HOT BLEED COLD FAN AIR COLD AIR FROM PACK MIXED CONDITIONNED AIR

PACK 2 CTL CH1 [AC1/DC1] CH2 [AC2/DC2]

FF FF

temperature indication

FLAP VALVE

EMER RAM AIR AIRCOND GND [DC ESS] CONNECT PACK 2 FLOW CONTROL VALVE [DC2] PACK 2

LOOP A LOOP B

COCKPIT

TRIM AIR VALVES

MIXING UNIT

(ENG 1 only) BLEED MONITORING COMPUTER BMC 1 [DC ESS SHED] BMC 1 [DC2]

PACK 1 CTL CH1 [AC1/DC1] CH2 [AC2/DC2]

PACK CTL Prim fail => flow not optimized Sec fail => ECAM sgnal lost Both fail => 15°C by a/ice vlv ZONE CTL Prim fail => 24°C by packs CABIN Sec fail => no effect AIR Both fail => 20°C pack 1 10°C pack 2 FILTER CAB FAN 1 [AC1]

HOT AIR PRESS REG VLV

SKIN EXCH INLET BYPASS VLV cargo under-floor

HP VLV ENG 1 [DC ESS SHED] ENG 2 [DC2]

ZONE CTL CH1 [AC1/DC1] CH2 [AC2/DC2]

PACK 1

BLOWER COCKPIT EXTRACT PANELS FAN FAN SKIN AIR [AC1] [AC2] EXTRACT AVIONICS VLV EQPMT

FILTER

FAN AIR VALVE ENG 1 [DC ESS SHED] ENG 2 [DC2] regulates BLEED temp at 200°C

SKIN EXCH ISOL VLV

AIRCOND

CAUTION, do not use GND AIRCOND air with air from packs simultaneously

CARGO VENTILATION CONTROL

FWD CABIN

TRIM AIR VALVES AFT CABIN CAB FAN 2 [AC2] FILTER

SATCOM

CABIN AIR (85% recycle air)

PRESSURIZATION - 2 safety valves (max 8.6psi or -.25psi) - if RAM AIR ON and ∂p9550+/-350ft)

FIRE PROTECTION & CARGO VENT SMOKE DETECTORS F

FIRE DETECTORS

B

FIREX BOTTLES

ELECTRICAL SUPPLY ENG 1 loop A [DC ESS], loop B [DC2] ENG 2 loop A [DC2], loop B [DC ESS] APU loop A & B[DC BAT] ENG 1&2 BTL 1 squib A [HOT1] squib B [HOT2] ENG 1&2 BTL 2 squib A [DC2] squib B [DC2] APU BTL squib A [HOT1] squib B [DC BAT] APU auto extinguish [DC BAT]

ENGINE

ENG cool-down time 3' or 1' if required by ops A319: CFM56-5B6/2 23'500lbs TOTAL TANKS CAPACITY (den 0.80kg/l) A320: CFM56-5B4/2 27'000lbs FF A320E: CFM56-5B4/P 27'000lbs CENTER TANK CENTER TANK HP VLV [DC ESS] A321: CFM56-5B1/2 30'000lbs 6600kg 6560kg X-FEED N1 100% = 5000 rpm OUTER to INNER TRANSFER FUEL METERING VLV MOT 1 [DC ESS SHED] N2 100% = 14460 rpm - XFR valves open when INNER have ~750kg IDG OIL COOLER LP VALVE MOT 2 [DC1] - T/O only with Outer TK full IGNITION SERVO FUEL FADEC MOT 1 [DC ESS] - Automatic XFR after landing ENG ENG1&2 A [AC ESS] HEATER ENG1&2 CH A [DC ESS] MOT 2 [DC2] (to avoid, switch REFUEL panel PWR ON!) PMP or [AC STAT INV] FUEL/OIL HEAT ENG1 CHB [DC BAT] jet pump or transfer via DEFUEL/XFR valve ENG1 B [AC1] 1 ENG2 CHB [DC2] see OMB vol.2 1.4 / 28.4 ENG2 B [AC2] LP VALVE DEFUEL MOT 1 [DC ESS] XFR FQI 1 2 1 2 MOT 2 [DC2] XFR VALVES VLV CH1 [DC ESS SHED] 1 [DC ESS SHED] INNER TANKS CENTER to WING TRANSFER CH2 [DC2] WING TANKS 2 [DC2] -Valve opens until wing tank is full then wait 2 x 5540kg 2 x 6200kg until 250kg are used and re-opens - Gravity transfer from CTR TK OUTER TANKS only possible if >2000kg in CTR XFR RH 1 RH 2 LH 1 LH 2 CTR1 center tank these REFUEL VALVE 2 x 704kg [AC1] [AC2] VLV [AC1] [AC2] [AC1] are trapped [DC2] refueling on L[DC1] [DC1] [DC2] [DC1] [DC2] [DC1] batteries with R[DC2] [DC ESS] [DC ESS] CTR2 [HOT1] REFUEL REFUEL REFUEL [AC2] COUPLING VALVE COUPLING [DC2] VENT TANK FUEL IMBALANCE A319/A320 ~50kg INNER TK Full, max 1500kg TANK PUMPS WING PUMPS INNER TK 4300kg, max 1600kg A321 FUEL IMBALANCE INNER TK 2250kg, max 2250kg FUEL TEMPERATURE TOTAL CAPACITY WING TK Full, max 1350kg no limitations below 2250kg JET A1 min -43°C max +54°C WING TK 4000kg, max 1500kg OUTER TK max 530kg, if OUTER+INNER same (den 0.80kg/l) JET A min -36°C max +54°C WING TK 2350kg, max 2350kg or INNER of empty OUTER equal or higher (up to 3t) of JET B, JP-4, JP-5, JP-8, RT, TS-1 see OM B 1.1.1 no limitations below 2350kg opposite INNER

FUEL A319/A320

refueling / defueling lines feeding lines

FUEL EIU NOZZLES ENG1 [DC BAT] ENG2 [DC ESS]

19088kg

A321 FUEL

18960kg

!!! NOT FOR OPERATIONAL USE !!! ©Pierre-Michel Gasser, 14.05.2007