AIR CONDITIONING / PRESSURIZATION / VENTILATION Flashcards
1
Q
RAM AIR INLET
A
Only open if differential pressure is lower than 1 PSI
2
Q
AIR CONDITIONING WITH LP GROUND UNIT
A
‐ Do not use conditioned air simultaneously
from packs and LP ground unit.
‐ Airflow supplied by the ground cart
shall not exceed 1.2 kg s (2.60 lb s).
3
Q
AIR CONDITIONING WITH HP GROUND UNIT
A
Do not use HP ground unit when APU supplies bleed air to avoid bleed system damage.
4
Q
CABIN PRESSURE
A
Max Positive differential pressure………….. 8.6 PSI
Max Negative differential pressure………….. -1 PSI
5
Q
AVIONICS VENTILATION
A
OAT = 49 °C no limitation OAT = 55 °C time limit 2 h OAT = 60 °C time limit 1 h OAT = 64 °C time limit 1/2 h
