Diagram of HVAC Venting?

[Ti Kan]

What you refer to as "condensor" is actually the evaporator.
The real condensor is in at the radiator.

On the type 81/85 cars, there is only one air flap that is actuated
when you turn on the A/C.  It's driven by a vacuum solenoid in the center
"box" below the plenum, and opens and closes the intake chamber.
When in heat/fresh air mode, air is allowed in to the blower motor
(the ducting inside the dash is such that only the outboard vents,
defrost and footwell vents get heated, the center vent doesn't).
When in A/C mode, air is blocked, the intake air to the blower and
all vents is drawn through the evaporator at the passenger side
footwell.  Thus, on these cars in A/C mode we have mandatory "recirc"
operation.

With the hood up and the plenum cover off (that black plastic rain drip
thing that also covers the wiper motors), you should be able to see the
vacuum solenoid operate when you move the temperature lever to full
cold and turn on the A/C.

-Ti
01 S4 2.7 biturbo quattro
84 5000S 2.1 turbo
80 4000 2.0
--
    ///  Ti Kan                Vorsprung durch Technik
   ///   AMB Laboratories, Sunnyvale, CA. USA
  ///    ti at amb.org
 //////  http://www.amb.org/ti/
///

David.Ullrich at ferguson.com writes:
> Anyone know where I can get a diagram of the HVAC venting system on my 1987=
>  Coupe GT? I need one that shows all of the various parts including dampers=
> , and parts that direct air over the condenser. Here's the situation (if I =
> mess up any terms, I apologize in advance): I had the AC system converted t=
> o R134a while it was being repaired (it had TONS of leaks). Well, it is not=
>  getting as cold as I think it should. I took it back to the shop that did =
> the work. We tested the system, it's full (no leaks) and is building proper=
>  pressures. The temp at the center vents is around 65 degrees when outside =
> temp is 85. Not terrible, but we both think it should be in the low 50s or =
> 40s. The condenser (part under the dash, I think that's the condenser) is g=
> etting plenty cold and is sweating like crazy. According to him, this means=
>  the system is working properly, so it is his thought that there must be an=
>  air leak in the venting system or that the air is not being directed over =
> the cold condenser properly. he is a very good GENERAL mechanic, but does n=
> ot specialize in Audis. So, he has tasked me with coming up with as much in=
> fo and diagrams as possible. So, if anyone can direct me to any diagrams, i=
> t would be GREATLY appreciated. Also, any suggestions on things to check wo=
> uld also be great!
>
> TIA!
>
> Dave
>
> 1987.5 Audi Coupe GT "Special Build" 2.3 - Anthracite Black
> 1998 VW Passat GLS 1.8T - For Sale CHEAP