21-10-30 Temp flow and regulation Flashcards
1
Q
When does the ram air inlet flap close automatically?
A
When takeoff power is set and struts compressed.
Landing when struts are compressed and speed is above 70kts
Opens 20s after speed drops below 70kts
2
Q
What is the selectable temperature range?
A
18 degrees - 30 degrees
3
Q
When does the pack flow automatically deliver high flow?
A
Single Pack operation
When APU supplies bleed air
4
Q
What happens if the hot air regulation valve fails?
A
Trim air valve driven to closed position
Pack 1 controls cockpit
Pack 2 controls cabin Fwd and Aft
5
Q
How is temperature regulation achieved?
A
Zone controller computes the demand from selected temp and actual temp
6
Q
What happens if trim air valve fails?
A
Temp regulation of the zone is lost
