Air Cond

Question 1

ENG 1(2) BLEED (Normal) Bleed valve opens if….

Answer 1

1. Upstream pressure is above 8 psi
2. APU BLEED is OFF or APU VALVE is closed
3. No leak, over pressure, or overtemp detected
4. ENG FIRE pb has not been activated
5. ENG start valve closed

Question 2

An ENG 1(2) BLEED FAULT light means?

Will Fault light go out if fault no longer exsits?

Answer 2

1. Over pressure
2. Bleed air overheat
3. Leak
4. Not closed for ENG START
5. Not closed with APU bleed ON

Yes

Question 3

The RAM AIR valve will open if pressed ON and?

Answer 3

1. Ditching is in normal position
2. Cabin diff press less than 1 psi

Question 4

An APU BLEED FAULT light means?

Answer 4

APU leak detected

Question 5

An APU BLEED ON (Blue) light means?

Answer 5

APU VALVE IS OPEN

Question 6

When the X BLEED knob is selected SHUT it commands?

Answer 6

Crossbleed valve closed

Question 7

The X BLEED selector knob in AUTO will command the valve to open and close when?

Answer 7

Open if APU bleed is Open

Closed if APU bleed is Closed

Question 8

The X BLEED selector knob in OPEN commands?

Answer 8

Valve open

Question 9

PACK 1(2) pushed in and no FAULT light means the pack control is …..

Answer 9

Automatic

Question 10

A PACK 1(2) FAULT light comes on with what 3 things?

Answer 10

1. Pack control valve disagrees with selected position
2. Compressor outlet overheat
3. Pack outlet overheat

Question 11

When the HOT AIR light is not lit, it means the hot air pressure is regulated?

Answer 11

Automatically

Question 12

A HOT AIR FAULT light means?

Do the valves close automatically?

Answer 12

Duct overheat

Yes

Question 13

When HOT AIR is selected OFF, what valves close?

Will this reset the Fault?

Answer 13

The HOT AIR and TRIM AIR valves close.

Yes

Question 14

The ZONE TEMP selector range is….

Answer 14

64 to 86

Question 15

When the PACK FLOW selector knob is set to NORM the flow is?

Answer 15

Automatic

Question 16

When the PACK FLOW selector knob is set to HIGH the pack flow =

When the PACK FLOW selector knob is set to LOW the pack flow =

HIGH flow is automatic with what 2 conditions?

Answer 16

HIGH = 120%

LOW = 80%

APU is being used or Single Pack