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Home A/C a-coil for a air compressor air dryer?

27K views 14 replies 7 participants last post by  66GMC 
#1 ·
I have been reading it is a good idea to cool the air coming from the pump before it goes to the tank and have a water trap after the cooler. Alot of guys have used an automotive evaporator or condenser to cool the air. I have an old a-coil from home unit and was thinking of using it. I was going to plumb it between the pump and tank and have a water trap before it goes into the tank. Also would add a fan to blow into the a-coil just like your furnace does to dissipate the heat. Of course I would have to eliminate the expansion valve on the a-coil to remove that restriction.
Any thoughts?
 
#4 ·
As far as restrictions go, it looks to be ok. It has a 3/8(I think) small line going in and that splits off into smaller 1/4(I think) lines an goes into the core.
The a-coil is the evaporator portion that is in the house above the furnace fan. The condensor is the part outside and would be way too big to mount anywhere. I have that unit also and was going to scrap it.
 
#5 ·
Of course you are right. I engaged my typing finger before I put my brain in gear. I was thinking of automotive unit. I would think the home evaporator would work great. You would need to have a small tank to catch the water before it got to your compressor tank but that should not be too hard to find either. This is something I have also wanted to do. I hope you will post your progress along with a few pictures as you go. Good luck.

John L
 
#6 ·
The more I think about it the more i am leaning towards a trans cooler or condensor from a car/truck. The a-coil is so big and takes up alot of room I don't have. I can pick up a trans cooler from the local pick n pull for 10.00 and it would be small enough that it would not take up much room.
I am thinking going up the wall from my compressor to the cooler, then out of the cooler down to a tee w/a leg w/a drain at the end, then back to the tank.
 
#9 ·
Got a new camera,see if this works.One is the "infamous" Franzinator....with external cooling coil(total loss system,IOWs 1/4" tubing taps into water supply but instead of tying back in,it simply fills a bucket.Only use this when AC is runnin non-stop.....and the water is simply adj to dribble).

The other pic is a copper coil.Its 3/4 that was simply coiled around a big sander drum or sumthing?Anyway its gonna be installed after comp.....

I need to tig up another expansion chamber on comp outlet...then plumb the above coil in....just need the time to do it....duh.

Good luck with your system.
 

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