Originally Posted by Richard Wooldridge

Hi Brian,
1. You are correct in that the valve works as you described, ie I could have left off the plug and the bleed. I felt it gave a little smoother action with the bleed than without. No, I haven't tried it in extremely low temperatures, in fact we never get those kind of temps here in SW Washington. I've never seen it go below 18 degrees.
2. The stranded wire lets a small amount of air pass through between the strands, a very easy way to control the bleed air, as evidenced by Mercedes's use of this kind of bleed in all of the ACII systems. You can just cut the wire to whatever length it takes to get the bleed you want.

On a different subject, I checked in my factory manual, it has a good description of the operation for each pushbutton, and in all positions except economy and off the AC compressor is engaged continuously, and the heat is controlled by adding heat to the AC. I suppose this gives the system a dehumidifying effect. Also, I expect that the heat would be mostly shut off in warm weather.

The problem I was having with my monovalve was that when I slowed down to 25mph or less, the heat would come on even with the AC turned to max cool. This setup fixes that!