AIR COND

Question 1

HOW MANY PACKS

AND AIR SOURCES

Answer 1

2 PACKS

3 SOURCES

ENGINES

APU

HP GND AIR UNITS

Question 2

PACK VALVES

Answer 2

TWO PACK VALVES PER PACK

THEY REGULATE THE QTY OF HOT BLEED AIR THAT FLOWS INTO EACH PACK

Question 3

ROLE OF THE PACK

Answer 3

PROVIDE COLD AIR BY COOLING HOT BLEED AIR

BOTH PACKS OPERATE AUTO

AND INDEPENDENTLY OF EACH OTHER

Question 4

EACH PACKS CONTAINS:

Answer 4

1 HEAT EXCHANGER USING EXTERNAL AIR

2 COOLING UNITS ACMs AIR CYCLE MACHINES

IF BOTH ACMs FAIL BLEED AIR IS COOLED BY HEAT EXCHANGER ONLY

THE PACK OPERATES IN BYPASS MODE

Question 5

ECAM

REGUL

Answer 5

REFERS TO ACMs

Question 6

WHAT CONTROLS PACK AND RELATED PACK VALVES

Answer 6

1 PACK CONTROLLER CONTROLS EACH PACK AND ITS RELATED PACK VALVES

Question 7

PACK CONTROLLERS HAVE HOW MANY CHANNELS?

Answer 7

TWO INDEPENDENT CHANNELS

EACH IF THESE CHANNELS CAN CONTROL ONE ENTIRE PACK

IF BOTH CHANNELS FAIL THE PACK IS LOST

Question 8

WHEN WILL PACK CONTROLLERS BE SHOWN ON BLEED SD

Answer 8

NOT NORMALLY SHOWN

ONLY WHEN ONE OR MORE CHANNELS FAIL BOTH PACK CONTROLLERS WILL BE SHOWN

Question 9

THE ROLE OF THE MIXER UNIT

Answer 9

COLD AIR FROM PACKS IS COMBINED WITH RECYCLED COCKPIT AND CABIN AIR IN THE MIXER UNIT

PACKS AND MIXER UNIT ON BLEED AND COND SD

Question 10

ON GND LP GND AIR CONNECTS TO

Answer 10

CONNECTED TO MIXER UNIT

NOT SHOWN ON SD

Question 11

PRIMARY VENT FANS

Answer 11

4 VENTILATION FANS

REFERRED TO AS PRIMARY FANS

NOT NORMALLY ON COND SD UNLESS 1 FAILS

Question 12

SECONDARY VENT FANS

Answer 12

9 SECONDARY FANS

BLOW AIR FROM UPPER DECK AND RECIRCULATE IT IN THE UPPER AND MAIN DECKS

NOT SHOWN SD

Question 13

18 CONTROLLABLE ZONES

Answer 13

COCKPIT

7 UPPER DECK

8 MAIN DECK

2 CARGO ZONES BULK FWD

CREW REST COMPARTMENT

Question 14

HOW IS EACH ZONE TEMP SET

Answer 14

ADJUSTED BY ADDING HOT BLEED AIR TO AIR FROM THE MIXER UNIT

HOT AIR IS ADDED VIA TWO HOT AIR VALVES AND ONE TRIM AIR VALVE PER CABIN ZONE

Question 15

WHAT CONTROLS THE TEMP OF EACH ZONE

Answer 15

CONTROLLED BY TEMP CONTROLLER

TWO INDEPENDENT CHANNELS

EACH CHANNEL CAN CONTROL ALL ZONES

ONLY SHOWN COND SD IF A FAULT

Question 16

BOTH PACKS FAIL

Answer 16

MIXER UNIT CAN RECEIVE AIR DIRECTLY FROM OUTSIDE VIA TWO EMERG RAM AIR INLETS

Question 17

PACK VALVE WILL AUTO CLOSE

Answer 17

NOT SUFF UPSTREAM PRESS

ENG FIRE SW PRESSED

X BLEED VALVE CLOSED

Question 18

BOTH PACK VALVES WILL AUTO CLOSE

Answer 18

RELATED PACK PB SET TO OFF

RELATED PACK OVERHEATS AND AIRCRAFT ON GND

ONE ONSIDE ENG STARTS AND X BLEED VALVES CLOSED

Question 19

ALL PACK VALVES AUTO CLOSE

Answer 19

DITCHING PB SW ON

ONE DOOR OPENED AND AT LEAST ONE ENG RUNNING

ANY ENG STARTS AND X BLEED VLV OPENED

ENG FIRE PBSW OF ANY ENG PRESSED AND X BLEED VLV OPENED

Question 20

AIR COND CONTROLS LOCATED

Answer 20

OVERHEAD PANEL

C FWD

Question 21

AIR FLOW SEL

Answer 21

CONTROLS THE REGULATION OF THE PACK VLVS TO OBTAIN THE DESIRED QTY OF AIRFLOW IN THE AIRCRAFT

Question 22

AIRFLOW SEL

NORM

Answer 22

AIRFLOW AUTO ADJUSTED ACCORDING TO VALUE SET IN FMS FOR POB

Question 23

AIRFLOW SEL

MAN

Answer 23

DEFAULT AIRFLOW VALUE

Question 24

AIRFLOW SEL

LO

Answer 24

80% MAN

Question 25

AIRFLOW SEL HI

Answer 25

120% MAN

Question 26

PACK PBSW CONTROLS

Answer 26

ITS RELATED PACK AND PACK VLVS

Question 27

HOT AIR PBSW CONTROLS

Answer 27

ITS RELATED HOT AIR VLV SHOWN BLEED AND COND SD

Question 28

CABIN KNOB

Answer 28

BOTH COCKPIT AND CABIN SHOWN CRUISE SD IF PURS SEL EACH CABIN ZONE TEMP CAN BE SET AT FAP

Question 29

RAM AIR PBSW

Answer 29

CONTROLS EMERG RAM INLETS SHOWN BLEED SD AND COND SD

Question 30

VENT CONTROL PANEL CAB FANS PBSW

Answer 30

CONTROLS PRIMARY AND SECONDARY FANS ONLY PRIMARY ON COND SD FOR FAILURE ONLY

Question 31

AIR COND CARGO

Answer 31

AIRCON AND VENT SYS OF FWD AND BULK CARGO COMPT FULLY AUTO AFT CARGO COMPT NOT AIRCOND BUT IS VENT BY THE BULK CIRCUIT

Question 32

BULK INLET ISOLATION VLV

Answer 32

AIR FROM CABIN ENTERS INTO BULK THROUGH INLET ISOLATION VLV AN EXTRACTION FAN EXTRACTS AIR VIA OUTLET ISOLATION VLV IN AFT CARGO WHICH IS DISCHARGED OVERBOARD THROUGH THE OUTFLOW VLVS

Question 33

BULK CARGO ISOL VLV

Answer 33

REFERS TO INLET AND OUTLETS ISOLATION VLVS FOR ECAM EXTRACTION FANS ON COND SD ONLY FOR FAILURE

Question 34

BULK CARGO HEATING

Answer 34

IF NECESS TO OBTAIN DESIRED TEMP ELECTRIC HEATER HEATS THE AIR THAT FLOWS INTO THE BULK CARGO COMPT HEATER ONLY SHOWN COND SD FOR FAILURE

Question 35

FWD CARGO COMPT

Answer 35

AS PER BULK AIR FLOWS FROM CABIN INTO FWD CARGO VIA SEVERAL INLET ISOLATION VLVS NOT SHOWN COND SD EXTRACTION FAN EXTRACTS AIR VIA OUTLET ISOLATION VLV WHICH IS DISCHARGED THROUGH THE OUTFLOW VLVS ECAM FWD CARGO ISOL VALVES REFERS TO ABOVE EXTRACTION FAN ONLY COND SD FOR FAILURE

Question 36

FWD CARGO COMPT TEMP ADJ

Answer 36

BY ADDING HOT AIR FROM BLEED SYS TRIM AIR VLV OR COLD AIR FROM MIXER UNIT TRIM AIR VLV ONLY SHOWN COND SD FOR FAILURE

Question 37

CARGO AIR COND PANEL LOCATION

Answer 37

OVERHEAD R FWD

Question 38

CONTROL PANEL BULK ISOL VALVES FWD IS SAME

Answer 38

PBSW CONTROLS ITS RELATED BULK INLET AND OUTLET ISOLATION VLVS

Question 39

CARGO CONTROL PANEL TEMP REGUL

Answer 39

ADJ TEMP

Question 40

BULK HEATER PBSW

Answer 40

CONTROLS RELATED HEATER

Question 41

FWD AND BULK TEMP SHOWN WHICH SD

Answer 41

CRUISE SD ALSO

Question 42

PACK PBSW FAULT

Answer 42

FAILURE HAS BEEN DETECTED IN THE PACK SYS WITH ECAM IN THE CASE OF OVERHEAT THE FAULT LGT REMAINS ON AS LONG AS THE FAILURE CONDITION EXISTS