Ventilation

Question 1

What is the purpose of the AVEC?

Answer 1

Automatic control of the avionics ventilation system is provided by a single Avionics Equipment Ventilation Controller (AVEC).

Question 2

When would the intermediate configuration of the avionics ventilation system be used?

Answer 2

The intermediate configuration of the avionics ventilation system is used when you apply takeoff thrust and hot ambient conditions exist.

Question 3

What are the Avionics Ventilation confgurations?

Answer 3

• Open-Circuit
• Close-Circuit
• Intermediate
• Smoke

Question 4

How is battery ventilation achieved?

Answer 4

A venturi in the skin of the aircraft draws air from the space around the batteries and vents it overboard. The resulting airflow ventilates the batteries.

Question 5

When would the EXTRACT pb be used during normal operations?

Ventilation

Answer 5

As called for by the parking checklist, during heavy rain. The ventilation system will enter the closed configuration and coolng will be provided by the air conditioning system.