Forum Discussion
Matt_Colie
Jun 11, 2013Explorer II
J-D,
That is one of the beauties of HC-12a, it compatible with mineral, PAG and Ester oils and all the rubber hoses and o-rings. I can put it in an old R-12 system and it will work and it won't tear-up things that were just fine.
Yes, it is a mixture of pure propane (not fuel gas) and isobutane. If you are afraid of less than 3 pounds of that in the engine box, remember that if it gets released, it is gone in a moment. Compare this to gasoline or diesel fuel......
You do know that the ignition by-products of 134 are extremely toxic as is 134 as it is. It never was a good idea.
I don't know what Maxfrig is, the charts read a lot like HC-12a. I have never used it.
No matter what you use as charge, you still need to evacuate the system even if you are not using a refrigerant like 134 that can become corrosive with exposure to moisture. The problem is that the non-condensable gasses (air stuff) gets in the way and the moisture will freeze and plug important parts.
Matt
That is one of the beauties of HC-12a, it compatible with mineral, PAG and Ester oils and all the rubber hoses and o-rings. I can put it in an old R-12 system and it will work and it won't tear-up things that were just fine.
Yes, it is a mixture of pure propane (not fuel gas) and isobutane. If you are afraid of less than 3 pounds of that in the engine box, remember that if it gets released, it is gone in a moment. Compare this to gasoline or diesel fuel......
You do know that the ignition by-products of 134 are extremely toxic as is 134 as it is. It never was a good idea.
I don't know what Maxfrig is, the charts read a lot like HC-12a. I have never used it.
No matter what you use as charge, you still need to evacuate the system even if you are not using a refrigerant like 134 that can become corrosive with exposure to moisture. The problem is that the non-condensable gasses (air stuff) gets in the way and the moisture will freeze and plug important parts.
Matt
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