I bought a "Sure don't fit" VA unit and was VERY disappointed with the directions and some of the parts as to the way they didn't work/fit properly.
Another thing I didn't like is there vents aren't very OE looking.
No where did I see any mention of 50/50 mix of water and coolant.
I also didn't like the fact you are supposed to discard the Astro Vent system and the pass. side kick panel vent.
The defrost vents they provided wouldn't stay on and would be a big problem if they fell off after the dash was together.
My directions didn't have any charging pressures or how much coolant to put into the system.
They also didn't mention what the black knob on the unit was for?
I figured it out after reading other directions from there web site that it's the temp. control, just in case your unit isn't cooling or freezes up.
The connection on my condenser were mickey mouse and I actually had one break and had to custom make a part to repair it.
Poor planning of the routing of the heavy A/C hoses causes undue stress on the connections and will eventually cause leaks.
SS540 is correct about the grommets they supply as they are a fits-all type and will have a large gap on one side if the tubing isn't in the center as it passes through them.
I finally got the unit working and with all the mods I made it works well, but if I was to do it over I would buy it in pieces, that way I could control how things were mounted and routed.
TC buddy, I feel ya' on the problems that come up with some so called "Direct Fit" systems but you're way off topic comparing your problems with a direct fit system with a GEN II unit. They have nothing in common. If you just need to vent about the problems you had, that's cool. That's why this place exsists. But please, start your own thread next time. The only constructive thing you said was that next time, you'd do what I did; buy the universal fit unit and put it in your way. My experience was very different than yours and the ONLY problems I encountered were caused by me. I wasted two fittings by not paying attention. Other than that, it went in like a breeze. Sure, it took a lot of work to make the plates and trial mock-up all the lines but in the end, it's worth it. To me. I'm not about keeping the car looking stock. That's a different thread altogether.
The Vintage Air Gen II Compac directions are very clear.
I used reducers (3" to 2.5") available from VA and used the stock vents.
The 50/50 mix warning is on every page in bold print.
I yanked my entire factory "old tech elephant" anyway and pulled the fresh air vent because I wanted to run the hose thru there. Bye-bye fresh air vent. Hello smooth firewall.
I used sheet metal screws to attach the defrost vents, just like the factory did. Maybe sewing machines use Elmers glue, but not Chevy's.
My instructions include charging instructions and amounts for R-134.
There is no black knob on a GEN II. Maybe its newer or maybe because it's all electric?
I only bought the EVAPORATOR (the part inside the car). It has male o-ring fittings for the a/c and standard hose nipples for the htr hoses. All other fittings in my system are crimp-on o-ring style. Including the htr hoses.
The CONDENSOR (in front of the radiator) will have the same o-ring fittings on it and will be a direct-fit unit from Classic Auto Air.
Since I used only bulkhead style connections to go thru the firewall and at the engine bay, I didn't have to worry about grommets etc. I MADE my own mounting plates, as usual, to get the look I want.
My experience with the Vintage Air GenII Compac unit was very positive and I am extremely pleased with the outcome.