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post #11 of 18
R240 more commonly known as propane is a readily available refrigerant. Just don't smoke whilst your handling it!

If your already going to recharge it its probably best to renew the POE Oil in the compressor whilst your at it.
    
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post #12 of 18
You also need to be extremely careful about leaks and handling of propane. You don`t always smell a small leak in a space that has just enough ventilation to cover the smell. Personally, I`d use something else, even though it would be a lot more expensive.
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post #13 of 18
Quote:
Originally Posted by hvacgaspiping View Post
You also need to be extremely careful about leaks and handling of propane. You don`t always smell a small leak in a space that has just enough ventilation to cover the smell. Personally, I`d use something else, even though it would be a lot more expensive.
A tip I picked up was warm soapy water smothered over all the brazed connections. If it bubbles up, you got a leak! Vaccuum, braze, recharge. A major danger with propane is that it will actually pool on the floor because its more dense than air, so it takes a while before it reaches your nose!
    
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post #14 of 18
Quote:
Originally Posted by alk View Post
A tip I picked up was warm soapy water smothered over all the brazed connections. If it bubbles up, you got a leak! Vaccuum, braze, recharge. A major danger with propane is that it will actually pool on the floor because its more dense than air, so it takes a while before it reaches your nose!

You hit the nail about propane pooling on the floor. You also must remember that an electronic leak detector won`t work for detecting propane, and if you try it you`re liable to blow yourself up. It specifically says on the detector, "do not use in an explosive atmosphere".
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post #15 of 18
Thread Starter 
I wouldn't use propane as a coolant =o.

R-22 sounds cool.
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post #16 of 18
Quote:
Originally Posted by Drax View Post
I wouldn't use propane as a coolant =o.

R-22 sounds cool.
Nether would I. But I'd use it as a refrigerant! There is a difference!
    
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post #17 of 18
Quote:
Originally Posted by hvacgaspiping View Post
Guys,

Before you start substituting refrigerants, be SURE that the oil in the compressor is compatible with the refrigerant you are changing to. You could end up with a scrambled compressor.
Duracool is compatible with any compressor. It can be used in either and R12 system or an R134a system, with either PAG or ester oils. It certainly won't harm your compressor; it actually will be a lot easier on it since it takes a lower head pressure than R134a


---Craig
post #18 of 18
Quote:
Originally Posted by alk View Post
R240 more commonly known as propane is a readily available refrigerant. Just don't smoke whilst your handling it!

If your already going to recharge it its probably best to renew the POE Oil in the compressor whilst your at it.
Propane is r290. And here in the states is illegal to use as a refrigerent. But it performes slightly better than r22.
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