AIR COND Panel

Question 1

Temperature Selectors - Cockpit/FWD/AFT

Answer 1

Cold 64F, 12oClock 76F, Hot 86F

Question 2

PACK FLOW Selector - LO

Answer 2

80% - select if 115 or less

Question 3

PACK FLOW Selector - NORM

Answer 3

100% - select if 115 or more

Question 4

PACK FLOW Selector - HI

Answer 4

120% - Select if hot/humid

Question 5

PACK 1 2 pb - Pushed

Answer 5

Opens pack value unless:
-Ditching switch selected
-Overheat in compressor outlet
-Start in process
-Air pressure low
Fire pb released

Question 6

PACK 1 2 pb - Fault light (Amber)

Answer 6

Overheat of compressor outlet or pack outlet

Disagreement of value position

Question 7

PACK 1 2 pb - OFF light (White)

Answer 7

Pack flow control valve closed

Question 8

ENG 1 2 BLEED pb - Pushed

Answer 8

Opens bleeed valve unless:

• Leak
• Overheat
• Overpressure
• Start value open
• APU bleed valve open
• Air 8 psi or less
• Fire pb released

Question 9

ENG 1 2 BLEEED pb - Fault light (Amber)

Answer 9

Leak
Overheat
Overpressure downstream
Start in process and valve not closed
APU bleed on and valve not closed

Question 10

ENG 1 2 BLEED pb - OFF light (White)

Answer 10

Bleed valve closed

HP valve closed

Question 11

RAM AIR pb - ON light (White)

Answer 11

If ditching switch is NOT selected:

• RAM AIR inlet opens
• Outflow valve opens 50% if:
  
  • Differential psi<1, and
  • not being controlled manually

Question 12

APU BLEED pb - Fault light (Leak)

Answer 12

Leak

Question 13

APU BLEED pb - ON light (White

Answer 13

Opens valve when pushed and:

• N>95%
• No leak

Question 14

X BLEED Selector - SHUT

Answer 14

Closed

Question 15

X BLEED Selector - AUTO

Answer 15

Opens if:
-APU bleed valve is open
Closed if:
-APU bleed valve is closed
-Wing, pylon or APU leak (except during start)

Question 16

X BLEED Selector - Open

Answer 16

Open

Question 17

HOT AIR pb - Fault light (Amber)

Answer 17

Overheat detected and closes:

• Hot air valve
• Trim air valve

Question 18

HOT AIR pb - OFF light (White)

Answer 18

Hot air valve closed

Trim air valve closed