Mike,

Thanks for the reply.

After a little more research, I found a reference to the "auto heat" valves which indicates that these should be "off" when using the OTR air conditioning. Haven't found anything in writing about the "coach heat" valves, but your comments make a lot of sense to me.

Lew,

Sounds like you're making progress! Glad to hear that you're feeling better.

Everything's ready and waiting for ya here in PSL. Hope you're up to a road trip soon.