Q-AIR CONDITIONING

Question 0

What will happen when temperature selection is made towards cool ?

Answer 0

Bypass Valve will move allowing less hot air

Question 1

How many air-conditioning packs are there ?

Answer 1

2

Question 2

What will happen if an air-conditioning pack overheats ?

Answer 2

the pack will shut down and the following enunciators will illuminate

CABIN PACK HOT or FLT COMP PACK HOT

Question 3

What is the difference between auto and and manual mode of the air conditioning system ?

Answer 3

In auto mode, the ECU modulates the packs bypass valves to add warm air to the cool air coming out the turbines
in Man mode, the anolog channel supplies temp control

Question 4

What is the indication of an avionics cooling fan failure ?

Answer 4

Nothing

Question 5

What does the FANS FAIL message on the ED ( engine display ) mean ?

Answer 5

Two or more fans have failed

Question 6

How do you set up pressurization to AUTO mode ?

Answer 6

Set AUTO and set LANDING PRESSURIZATION

Question 7

How many mode selections does the bleed air rotary switch have ?

Answer 7

3
MIN
NORM
MAX

Question 8

How does the ECS work in conjunction with the ECU ?

Answer 8

The ECU controls NSOV that regulate air flow from the engine to the pack.
The ECU uses temp and press data to regulate flow out of the FCSOV to the aircraft.

Question 9

With the APU running can you control the flow using the bleed flow control knob ?

Answer 9

No the ECU does it internally.