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True TSSU-60-16 prep table


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5 replies to this topic

#1 certified tech group 51

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Posted 12 February 2013 - 10:53 AM

Unit has no charge.............Old R12 system.........A lot of work to convert to a newer refrigerant.........Plus with all of the grease , I probably burn the place down..........Do not know if Hot-Shot  is the way to go......I am leaning towards Choice  R420A, but my parts house has not heard of it....Suppose to have the same P/T relationship, plus use the same oil.............I already have the Hot-Shot on hand........Anyone else use R420A ????.



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#2 KurtiusInterupptus

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Posted 12 February 2013 - 11:09 AM

I have used 420a as a drop in for 12 for a few years...always worked great for me...approx. 10% less than rated charge, if memory serves...
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#3 jumptrout

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Posted 12 February 2013 - 02:37 PM

HotShot is fine.

Since you have it on hand,use it.



#4 Cactus Bob

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Posted 12 February 2013 - 08:06 PM

409A is another drop in replacement

 

Hot shot will work

 

True stopped using R12 in 1993-4 , so this unit is at least 19 years old

don't get married to it


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#5 dimitri77565

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Posted 12 February 2013 - 11:27 PM

I use hot shot for Old & new  R12 Or R134  also hot shot seems to clean small restrictions,  after charging add a "Leak Sealer"

 

unless u have a GE with the rusted return line witch normally u must replace due to the size of the HOLE (LOL).  Have used them for the last 2 years with %100 success.

 There are 2 types 1 is delivered by the oil in the system the other witch I prefer is delivered by the freon.   Many brands most are the same.



#6 certified tech group 51

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Posted 14 February 2013 - 11:01 PM

Went to look for a jug of what i thought was R409 but it turns out to be  Suva MP 39 ( R 401A)........I think I will use the MP39.......... been there about 6 years , forgot about it....................This is what happens when the warehouse/shop has a lot of 'stuff' in it.. :rolleyes: ............Thanks  for the help.......






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