When will the turbine by-pass valve open:
At 35 degrees F to prevent the Water-Separator from icing up
In the Manual Mode, the temperature selector directly controls:
The Refrigeration By-pass valve (mix valve)
Does this airplane have a RAM air system:
Yes - NACA on the right side aft fuselage
In MANUAL how long does it take to cycle the refrigeration (mix) valve for full hot tho full cold:
10 sec