Originally Posted by go6car
I'm a bit late to the party here (been a heckuva month!)
The whole trick for us has been to get both ACs up and running EARLY in the AM, to keep everything cold all day/night long. So far; so good. What's bugging me more is no way to shut off the passenger vents in the dash - can only "deflect" the air. Grrrr......
I have two different types of cab/dashboard A/C vents.
The ones on the drivers side can be closed by pushing the deflectors flat. The ones on the passenger side are different, they are solid inflexible balls that you twist within a "socket" to direct air flow.
I do believe you can close them by rotating the ball so it faces directly into the side of the socket it rotates in.
Maybe a better way to describe it is to point the open end to a position 90 degrees from straight out/wide open. I am fairly certain you can block the air flow. I'll be fussing with the coach today and double check that, I may be wrong.
One other thing to keep in mind... Even if you get the "balls" rotated to block air flow you may still get cold air from the open duct that is attached to firewall and points right down to your feet. It has no deflector, its just an open black plastic pipe.
Normally this would be for heat only but I'm not so sure the HVAC system in the dash board is entirely efficient or that it functions as well as you would expect in an automobile. They all seem to be just a bit ad hoc and they seem to suffer problems frequently; at least based on the numerous posts about problems with dash A/C-heat I've seen.