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m411b
12-27-2006, 05:31 PM
I went to the Land fill today and picked up some old Dehumidifiers and found big Aspera 1/2hp 12.1cc compressors in 3 of them that all work perfectly. The numbers on them are E7213E 216CG26 & 216CG31. What I am posting about is I have done a search on this forum for Aspera compressors to find out what line out of the compressors are suction. On the compressors currently, shouldn't the line incircled on the right be the suction and the line incircled on the left be the service line? the way they are now is how they were in the dehumidifiers.
http://i120.photobucket.com/albums/o184/m411b/DSCI0028a.jpg

LostInSpace278
12-27-2006, 06:16 PM
Looks like to me, that the one on the right, that you have circled, is crimped shut. If it is, then that is your service line and the one on the left is the suction line.

I found nothing in the google search on the last 2 compressors. So if you could give us everything on the plate, it would be of more help.

One easy way to tell: take the compressor outside, get an extension cord, plug it in. Oil will usally blow out the liquid line and by placing your finger over the other line, it will start to form a vacuum.

m411b
12-27-2006, 06:58 PM
Thanx for the reply. I am just going to use the line on the left as suction. It shouldn't really matter anyhow considering the service line and the suction line go to the same place -- Right?.. The last 2 numbers are after the E7213E, they are just addons to the number. All 3 compressors are E7213E's 1/2hp 12.1cc.

star882
12-27-2006, 07:03 PM
But that would contaminate the oil inside. It's better to try to blow through it with a duster bottle. It will only blow from the suction to the discharge if the service line is closed. (Note that it won't work with a scroll or rotary. But I think that one's a reciprocating.)

m411b
12-27-2006, 07:25 PM
Well I was looking at this and according to the pics the suction and the service lines are the same.
Inside of compressor Post #16 (http://www.xtremesystems.org/forums/showthread.php?t=117425&highlight=Inside+compressor)

star882
12-27-2006, 08:37 PM
In the documentation for the scroll compressor I'm using, it clearly states that the suction and service lines are not the same. I think it has to do with how suction gas should flow over the inner workings to help cool them down.
Just install a service nipple on the service line and connect the suction line to the evaporator or accumulator. That should save from having to use a T fitting.

runmc
12-28-2006, 03:27 AM
In all the compressors I've seen the suction and service can be switched out. I believe there some compressors where this is not true.
I would imagine the larger port on the right is suction and the smaller port on the right is discharge. The port on the left is service.

Good luck with the compressor, it looks promising ;)

m411b
12-28-2006, 07:20 AM
Thanx for all the replies. I'm gonna use the compressor how it sits because thats how it was in the dehumidifier. If I find that it isn't working out I will switch the suction line. One of the other compressors is brazed opposite of this one with both suction and discharge on the right and service on the left, so I figure the suction and the service are the same on these compressors.
Thanx,
m411b