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01-03-2004, 01:28 AM #1
Is there anything about R134a that is better than R12?
Is there anything about R134a that is superior to R12 excluding the ability to satisfy the regulations and a relatively low cost of R134a only as a result of government regulations causing R12 price increase?
Relative to R12, R134a:
Sucks because:
Mixture of R134a and its lubricant has affinity for water.
The mixture don't get along with capillary tube as well as R12+mineral oil mixture.
Havea greater potentional of causing a cardiac arrhythmias.
Mixture of R134a+air can ignite under pressure.
If not of government bureaucracy and consequential scarcity increasing the price of R12, R134a costs more.
Higher head pressure, more stress on the compressor, higher leak rate.
Thermodynamic properties that are less desirable than R12.
It doesn't like high condenser temperature.
Rules because:
um.... I don't know.
.....
Does R134a really save the environment compared to R12 used in a responsible manner?
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