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CONVERTING A/C SYSTEM 12 TO 134A
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SIMPLICITY View Drop Down
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Joined: 19 Sep 2009
Location: ERATH LOUISIANA
Points: 502 		Post Options Post Options   Thanks (0) Thanks(0)   Quote SIMPLICITY Quote  Post ReplyReply Direct Link To This Post Topic: CONVERTING A/C SYSTEM 12 TO 134A
    Posted: 16 Sep 2010 at 8:43pm
HELLO
  I NEED TO CONVERT A LATE MODEL BLACK BELLY 7060 A/C SYSTEM 12 TO 134A.  . WOULD ANYONE KNOW WHAT IS NEEDED?, WHERE THE THE PARTS CAN BE PURCHASED? AND ANY PARTS #'S WOULD HELPFUL. THANKS
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jb from md View Drop Down
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Joined: 06 Apr 2010
Location: Keymar MD
Points: 450 		Post Options Post Options   Thanks (0) Thanks(0)   Quote jb from md Quote  Post ReplyReply Direct Link To This Post Posted: 16 Sep 2010 at 8:51pm
i dont have part numbers but when we did my 8050 we used a retro fit kit this gives you the o rings,fittings and oil. i suggest taking the compresser off and draining the oil, replace with new oil, get some ac flush to flush out the system this gets rid of old oil and residue in the lines, condenser and evaporator. also replace the dryer and add new oil to that. we have found that when converting to 134 we use about 80% of the r12 capacity we do this alot at the garage i work at and have always had good luck.. its not that bad to do .. hope this helps you ....Jb
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Roddo View Drop Down
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Joined: 16 Jul 2010
Location: Brant, Ontario
Points: 466 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Roddo Quote  Post ReplyReply Direct Link To This Post Posted: 16 Sep 2010 at 8:53pm
If it is still r12, make sure you get conversion oil.  The r12 oil and the 134a oil dont like each other.
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Eugene View Drop Down
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Joined: 11 Sep 2009
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Points: 18 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Eugene Quote  Post ReplyReply Direct Link To This Post Posted: 17 Sep 2010 at 5:48pm
There can be a problem using the old hoses from the R12 system. The hoses need to be barrier hose. This is because R134a contains Chlorine and will gradually disolve the hose. You will probably get years out of it, but it will eventually make the hose porous. When this happens its impossible to find the leak.
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