Hopefully there are three pictures shown here. They show a 14" return flex line that I think has excess line in it, and can be redone to reduce the flex amount. I am having my compressor replaced on Monday, so I have been tossing around the idea to have them fix this if necessary. What I would like them to do is place a 90 degree elbow where it comes thru the wall, should be picture 1 into 2, and then run the flex along the wall to the return box, adding a 90 degree elbow into the box to prevent kinks there. By adding the elbows and stretching the flex between the two elbows along the wall, that should eliminate several feet of 14" duct. That would be very beneficial, correct, with the return air in this line??? Or is it better having lots of 14" line snaking around the attic?
Just in case the pictures don't show, the line comes thru the attic, makes almost a 90 degree turn to parallel the ceiling, goes thru a wall, and then takes a very gracious lazy 90 degree turn, not bending the flex duct, and back to the return box, which is almost against the opposite side of the wall that it penetrates the first time. So it is a big lazy S, and not a tighter S that could be there with the 90 degree elbows. Make sense?