Because older A/C systems were designed to use R-12 coolant and they do not run as efficiently using R-134. Manufacture of R-12 was banned in the US due to concerns over it's adverse effects on the ozone layer.
Chat with our AI personalities
Unless It Has Been Refitted For R134 It Will Use R12. Best Way To Work This: Have A Good A/C Tech Update To R134 And Test Your System. You Will No Longer Be Able To Get R12 Well Some People Have Some Stashed About ( Cost Is High ) There Is Supposed To Be A Freon That Will Mix With R12 But I Have Heard That It Will Not Cool As Well. Good Luck
Check the ports to add freon--the low side is a large hose --the high pressure is the small line--on the large line if the valve is the large style----the freon is R134--if the valve is the small style it is R12--no longer used --retro valves are available to convert R12 systems to R134 R12 fittings can't be connected to R134 gauges, and vice versa. If it's R12 you won't be able to connect the hose from the supply can to fill it, or do anything else with R134 equipment.
Yes but EXTREMELY hard and confusing. Like Zelda games for old systems.
So you look cool, and play your music so LOUD, that old people hate you.
The newer Freon (r134) does not mix with the old Freon. The system needs to be flushed, special oil added so that r134 will be compatible with the system gaskets, then a vacuum pulled. Then the Freon can be added.
Am I cool? How old is he? Is pie good? Do you like spinach?
No, that's why it was used in (old) transformers to cool the windings.
I think a good game for 11 year old girls are ggg.com
If it old and they have paid their time for the crime and to society and making a good life for their self and paying back I think it's cool.
Cool cars often become even more cool when they are old. People remember the cars that were cool when they were teenagers. Later when they have more money, they may want to buy one. This makes old cool cars sometimes expensive collectors' items. Bad cars sometimes become cool when they are old, but usually not. Normal cars almost never become cool when they are old, except when they are so old that there are almost no cars from their era at all.
There are kits available, which consist of o-rings that are resistant to the corrosive properties of the R134, you will need the refrigerant, someone to remove the old refrigerant since it is illegal to release it into the atmosphere, and someone to vacuum pressurize the system prior to filling with the new refrigerant.
Legacy Systems