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Old 08-21-2007, 12:00 AM   #26
nplocoman
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Re: air conditioning refrigerant

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Originally Posted by centsless View Post
Propane will work as a refridgerant, but is flammable, and therefore poses some dangers when used.
Does this also apply to the gasoline, oil and antifreese that is used under high pressures in and throughout the auto's systems?

Last edited by nplocoman; 08-21-2007 at 12:01 AM.
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Old 08-21-2007, 02:52 AM   #27
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Re: air conditioning refrigerant

My mechanic just asked me yesterday about selling a bunch of the 'old style' cooler.
He has 36 cans of 'Cold Shop Silver Seal', 52 cans of 'Sercon' and 9 cans of 'National', all unopened. I think they are all 12 ounces.
Shoot me a pm if interested in at least half of it and i will send you his phone number here in Olympia, WA.
You two can work out price and pickup.
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Old 08-21-2007, 04:03 AM   #28
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Re: air conditioning refrigerant

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Originally Posted by BCOWANWHEELS View Post
PROPANE isnt for the novice a/c guy. i used it for decades with no problems in my semi trucks& pickups. cools twice as good as r12 and no problems. cost me .25 cents to charge my system. just what i do. no more risky than having a gas tank on your vehicle. jmo
bob
Quote:
Originally Posted by nplocoman View Post
Does this also apply to the gasoline, oil and antifreese that is used under high pressures in and throughout the auto's systems?
The thing is that gas is not supposed to enter the cab of the vehicle and the refrigerant does. One reason they stopped putting tanks in the trucks in 73. The other fluids are not pressurized to the extent that the a/c pressurizes the system
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Old 08-21-2007, 09:53 AM   #29
BurnoutNova
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Re: air conditioning refrigerant

Quote:
Originally Posted by BCOWANWHEELS View Post
PROPANE isnt for the novice a/c guy. i used it for decades with no problems in my semi trucks& pickups. cools twice as good as r12 and no problems. cost me .25 cents to charge my system. just what i do. no more risky than having a gas tank on your vehicle. jmo
bob
besides being dangerous, which obdviosly doesnt concern some people... propane doesnt circulate oil through the system like normal freon does. my dad used to have a 92 lumina, and i tested the purity of the system at work and it came up 98% hydrcarbons (almost 100% propane) the compressor was making some grinding noise. after i retrofitted it with r134a and changed the compressor oil, it quieted down quite a bit.
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Old 08-21-2007, 09:57 AM   #30
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Re: air conditioning refrigerant

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Originally Posted by nplocoman View Post
Does this also apply to the gasoline, oil and antifreese that is used under high pressures in and throughout the auto's systems?

how high of pressure does all those fluids get to? maybe 7psi for fuel, and 15-18psi for coolant? and yes i know newer efi stuff may see 55psi for the fuesl system

your a/c system gets up to 200psi, sometimes higher

all in all, propane is dangerous and its not a good idea to use it in you a/c system
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Old 08-21-2007, 05:27 PM   #31
nplocoman
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Re: air conditioning refrigerant

I have to say that using propane is not a good idea in my opion. As far as my statement about gasoline antifreeze and oil, I was just commenting for the sake of conversation and not to offend anyone. I apologize if I did.
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Old 08-30-2007, 02:41 AM   #32
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Re: air conditioning refrigerant

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Originally Posted by BurnoutNova View Post
im sure you mean R-12 everywhere you wrote R-22

R-22 is used in residential/comercial biuldings, but from everythign you said im sure you mixed them up
Burnout, you are ABSOLUTELY correct!

I did mean R12 when referencing R22.
Is it that obvious that I've been a factory rep for an HVAC manufacturer for 7 years?

Anyway, the same principles exist. I'm sorry for any confusion folks.
Hope it helps.
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