A/C Condenser Question -- Mr. Sims, are you out there?
 

I'm considering adding another condenser and fan to my a/c system. The condenser I'm considering has #6 and #8 o-ring fittings. Does it matter which is used for input and/or output? My instinct says the larger fitting should be for output, but I have no specific knowledge to back that up. So, what say you a/c experts -- which fitting is the "innie" and which is the "outtie?" Does it matter?

Thanks! SmileWavy

Scottb,
Have you done the subcooler as Jim and hugh R talked talked back then? Any comment?

I did a ProCooler, and am very happy with the results.

why did you do procooler? Why didn't you do the subcooler so that you can give me some opinion? :)

Scottb, I've got a ProCooler question for you. When you open your system up to add a 4th condenser, will you have to replace your ProCooler like you would a normal drier?

Scottb,

With a condenser, you are hoping to go from hot gas to hot liquid, so the volume rate IN is higher than the volume rate OUT. So, #8 IN, #6 OUT.

Mark: Good question! My hope is that I won't have to replace it if I seal off the system quickly with some duct tape. At some point I'll contact Ron Maxwell at Rennaire and ask him.

I had it bass-akwards! Thanks, Brian.

Scott

Great.....the answer will determine whether or not I do my [evap and front condenser replacement/ Procooler addition] and [underbelly condenser addition] at the same time. Probably best to push the entire project to the winter and do it all together when the A/C is not being used.

I already asked the question because my compressor went out about 6 months after I did the complete barrier hose/procooler replacement.

Ron said it would be fine for a day or so and it was.

I capped the hoses to the compressor during the replacement and have had no issues.

I asked Ron about this as well and the replacement cost is very very low assuming you have proof of purchase. But there again it can probably stand a couple "openings" as long as you cap the hoses so it's not exposed to air too long.


On a side note - Where is Jim. He hasn't showed his face on any of the AC posts in quite some time. Maybe he's just on vacation :D

I would have speculated that it would be fine provided that 1) the system was in tact before being opened - no leaks to let air/moisture in 2) that once the system is opened the exposed ends are capped reasonably well and 3) you pull a good vacuum on it before recharge to remove any water vapor that did get in. Of course here in Arizona we are a lot less worried about humid air!

But it's good to have the expert opinion from Ron. It's also good to know that the replacement cost is low if/when it does need replaced. I never thought to ask that question when I bought mine. Although I'm sure it's written somewhere in the paperwork.

So did I finally shame you into finishing....let me see how long have you been working on this

http://forums.pelicanparts.com/porsche-911-technical-forum/200676-c-condenser-front-rear-tire.html?highlight=condenser

Big fitting in, small fitting out....works just like your body (for most people)

Also, no need to replace the dryer, just put the caps on as soon as you get it off, store in a cool dry place and don't install till your ready to pull a vacuum.

And finally take many pictures.

YES, Take lots of pictures for us visual learners!!! :)

Well, you got me thinking at least. But don't hold your breath....there's no way I'm going to mess with the system until we're deep into the winter months. SmileWavy

I shot him a pm about an a/c question and no reply , he's normally very prompt .

I have been traveling and have been "off the net." As stated before, the larger condenser fitting is the the inlet. I have seen some condensers that use two #8 fittings. It is generally better to install a condenser so that the outlet is lowest as installed and operated in the car; this is to enable better gas liquid separation.

Great to have you back.
It has been strange not havening your name pop up of the millions of summertime AC questions AND It's been hard on Scott fielding all of the questions :D