As surveyors, we are also mechanics, and fishermen, and inventors, and everyting.
I just found out about another MORE EFFECIENT refridgerant.
It just looks good.
Anybody tried it yet?
Anything to make a refridgerant work better is good.
Nate
I'd tend to be suspicious. If it was really better and legal, wouldn't it become the standard and not just sold by some specialty company?
Refrigerants depend on having the right combination of pressures and flow for the boiling point of the material to work right. It seems strange that their "bigger molecules" would work as a direct replacement.
I agree with Bill. If it was better, you would see it being used more widespread.
> It seems strange that their "bigger molecules" would work as a direct replacement.
I used to own an automotive air-conditioning shop for 10 years and grew up in the industry since age nine.
The drop in replacement freons are engineered to pull more heat from the evaporator to the condenser but...
Only as long as the system is operating at peak performance. That means new drier or accumulator, expansion valve or tube, compatible refrigerant oil and a complete flush of the old system freon and oil with nitrogen. In addition if the automobile's engine cooling system (i.e. engine coolant, clutch fan or electric fan, thermostat, water pump etc.) is not operating at peak performance, the high pressure side of the a/c system will reach operating temperatures too high for the replacement freon to work properly.
Basically, one should completely rebuild the a/c system short of replacing the major components like: condenser, evaporator, and compressor (unless compressor is not displacing with proper pressures on both the suction and discharge sides). One should also replace all o-rings as different oils and freons can cause o-ring failures, which lead to leaks. Leaks are almost always the result of the drop in replacement refrigerants because they produce much higher high side pressures.
If one is going to go so far as to do all of this work, it really doesn't make any sense to use the drop in replacement freons for a temperature change of no more than 5 degrees max from a properly operating R134a system.
AS3
Well, it is a done deal now. My dad's van will have it sometime next wk.
We shall see.
Nate
