Thread: Phase Change
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Unread 08-21-2002, 10:43 PM   #123
|PuNiSh3R|
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Join Date: May 2002
Location: Pennsyltucky
Posts: 255
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argh.. you are F"d sonix..

First off.. you plan to do direct die.. which means you are going to have to break that system.. which means BYE BYE R-22! Unless you KNOW someone who can get you GOOD r-22..

134a SUCKS ass.. horrible.. horrible..

That compressor should be good for you.. I would try to find an R-12 compressor though.. just because it will use a lot less electricity.. but that's just my thought..

Unless your Maze3 has a metal top you can't use it.. The extreme cold you will put on it will destroy that lexan.. or atleast the seal.. I highly doubt it will be able to wistand the refrigeration process.. if so.. DAMN! who knows though.. if that block was tested to 1000+ PSI like they say.. then I don't know.. I guess it should work..

But on the other hand it won't work GOOD.. to little channel for the liquid freon to pick up much heat.. You are going to need to have a wrap of evaporator outside of the block then to let the freon properly boil off.. I would suggest wrapping this extra evaporator around part of your condensor.. Like.. some of the tubing that goes from your compressor to the condensor (the high side)... I personally would find a block with a lot more channel though.. something like the maze1.. or maze2 would do better.. with that larger water channel and it's quite long.. Bowman made his own evaporator-"water"block.. which has a ton of channel in it I believe.. ask him for help on that..

I am dealing with my own problems now.. I have this r-12 compressor.. filled with 134a.. things work great.. the temp falls nice and fast.. then it will go up to like 40F.. then fall again.. it's really weird.. I have frost all the way up to my compressor.. The actual condensor is barely warm.. but when I turn the condensor fan off.. the temps rise steadily.. weird..

I think I have a good mix of ester oil and mineral oil in this sytem lol.. that's not good I know I know.. also the PSI on the low side really fluctuates a lot.. like up down up down.. in between like.. 5+/- PSI.. it will just jump back and forth .. from say.. -5" vacuum to like -10" vacuum.. just keeps jumping bam bam bam..

The system is clear though.. no blocks in the lines... the high side PSI is also low.. like only around 120PSI.. Should be around 150 I believe.. hmm.. I don't know whether to keep adding freon or let some out.. GRR!! I only have about 6oz or so in.. plus my DD supercube condensor has 1/2" tubing in it.. which doesn't help me any.. but I'd think with that large tubing I'd be packing more freon.. I don't know what to do..
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