| Correct fittings with HC12 Duracool [message #286896] |
Tue, 08 September 2015 20:00  |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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I understand when you retro fit an R12 System to 134a that you are to put the 134a type addaptors on as an indicator to future civilizations that the system is charged with HCFC 134a. What is correct if you put in HC12 Duracool? Schraders or add on 134a addaptors?
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: Correct fittings with HC12 Duracool [message #286900 is a reply to message #286896] |
Tue, 08 September 2015 20:33  |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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John,
Duracool is a configured to be used to replace R134. So, yes, it might be easier to put the 134 conversions on the access fittings.
But, if you don't want to mess with the traditonal access fitting used with an R-12 system, you can use your old service manifold if you get a 134 tapper to open the Duracool can and the adapter to screw a 1/4 flare (the old standard) on a 1/2 Acme fitting (the 134 service size). They are less available now than they used to be, but they can still be found at real parts stores.
Matt
JohnL455 wrote on Tue, 08 September 2015 21:00I understand when you retro fit an R12 System to 134a that you are to put the 134a type addaptors on as an indicator to future civilizations that the system is charged with HCFC 134a. What is correct if you put in HC12 Duracool? Schraders or add on 134a addaptors
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: Correct fittings with HC12 Duracool [message #286902 is a reply to message #286896] |
Tue, 08 September 2015 23:35 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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I have installed Duracool in both types of systems. I would suggest that you install R-134 adapters. Then you can use a standard R-134 charging hose that is designed for R-134 and Duracool cans.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Correct fittings with HC12 Duracool [message #286951 is a reply to message #286896] |
Wed, 09 September 2015 13:59 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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I'm trying to work backwards on a mystery vehicle and I don't know what is in there. It's an R12 system that was retroed to HC12, but then it leaked and they took it in to some garage and there are now 134a add on's on it. Is there a way to figure out what is in there? I think 134a is toxic with flame present?? A geiger sniffer would be triggered by 134a but not HC12 or would remnants set it off??
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: Correct fittings with HC12 Duracool [message #286978 is a reply to message #286951] |
Wed, 09 September 2015 20:17 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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John,
It is a pretty safe bet that if they took it to any garage (and particularly in IL) that it was filled with 134. And yes, 134 does burn to toxic by-products and it will also support combustion, so lighting the exiting stream might be a real bad idea.
Matt - not a 134 lover
JohnL455 wrote on Wed, 09 September 2015 14:59I'm trying to work backwards on a mystery vehicle and I don't know what is in there. It's an R12 system that was retroed to HC12, but then it leaked and they took it in to some garage and there are now 134a add on's on it. Is there a way to figure out what is in there? I think 134a is toxic with flame present?? A geiger sniffer would be triggered by 134a but not HC12 or would remnants set it off??
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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