Icing Systems

Question 1

At what temperature will the use of the surface deice system can cause permanent damage?

Answer 1

-40C

Question 2

How much ice should you let accumulate before activating the surface deice system?

Answer 2

1/2 to 1 inch of ice.

Question 3

What are the switch three-positions of the surface deice system (direction and result).

Answer 3

Center position is OFF
Down position is MANUAL
Up position is AUTO

Question 4

How does the surface deice system work?

Answer 4

The system uses engine-driven pump pressure and a distributor valve. When the system is not engaged the distributor valve applies vacuum to the boots and when engaged the distributor valve changes from vacuum to pressure to inflate the boots.