Environmental Control System (ECS)

Question 1

What provides Cooling and Heating to the crew stations

Answer 1

Cooling from ECS
Heating from Bleed air from Engines and APU on start up

Question 2

Where is cooling air always supplied to?

Answer 2

EFABS, PNVS and TADS

Question 3

What do the #1 Vapor Cycle Cooling Systems (VCCS) comprise of?

Answer 3

Forward section of the left and right EFABs, the CPG station, and the TADS/PNVS turret.

Question 4

What do the #2 Vapor Cycle Cooling Systems (VCCS) comprise of?

Answer 4

Aft sections of the left and right EFABS, and pilot crew station.

Question 5

What range can individual crew stations temperatures select?

Answer 5

50º to 90º

Question 6

How can you turn the ECS on and off? Is it crew station dependent?

Answer 6

A/C UTIL page. No, it turns on and off for both crew stations.

Question 7

How long does the IBIT take for ECS1 or ECS2?

Answer 7

Approx 20 min.

Question 8

What is ECS primary purpose?

Answer 8

Protect avionics from excessive temperatures.

Question 9

What cools the Aft left and right avionics bays?

Answer 9

Ambient air only.

Question 10

What are the components of the ECS in the EFAB?

Answer 10

FWD Evaporators 2x, Compressors 2x, AFT evaporators 2x, and Condensers 2x.

Question 11

What provides fresh air to each crew station?

Answer 11

Air Particle Separator Blower.

Question 12

What MPD pages provide ECS status and control?

Answer 12

A/C UTIL, DMS IBIT, and ENG SYS