Hi Guys,
I have cars with both r12 and r143a. I was hoping to buy a manifold gauge, maybe the r134a and screw on adapters on the ends so it will fit r12 set up fittings/cylinder. Well, I heard its not that simple cuz the gauges are affected differently depending if r134a or r12.
1) I dont get it, PSI is PSI, isnt it??
2) An old timer here said I need 1/2"X1/4" ACME adapters which will fit an r134a manifold and adapt for an r12 setup. Would this work?
3) I also heard there may be a type of Table/chart which details ambient temperature, humidity, etc to help one figure out the ideal low side PSI when adding refrigerant. Is this table available anywhere, if such a thing?
4) Must I buy 2 manifolds, for each refrigerent?
Thanks, People!
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beware of the arrival
Edited: Wed October 28, 2009 at 3:46 PM by pippo
This set will work with both R12 & R134a.
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1. Yes.
2. The 1/2" ACME thread was specified for R134a, to replace the 1/4" flare used with R12. Most R134a connections use a quick coupler and the connectors you will need are included in the gauge set TRB recommended. I purchased one of these sets and have been very satisfied.
3. Check the Tips & Procedures page for a "R134a Pressure/Temperature Relationship Chart"
4. No. But make sure you purge properly so as not to cross contaminate.
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Thanks, TRB. Ive seen these types in my search for an edjukation on this. And, the price is not bad. BUT, still I need to understand what does this dual manifold have that say, an r134a one doesnt have, with adapters? Oh, is mastercool the same as ackits? Just want to know who to patronize.......
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beware of the arrival
oops. He cat beat me to it...LOL.
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beware of the arrival
Mastercool is a line of products we offer but is not an ACkits.com company.
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