When were CFCs banned in the US?
When were CFCs banned in the US?
1978
What is the reason that CFCs were banned in the 1970’s?
Impact as greenhouse gases CFCs were phased out via the Montreal Protocol due to their part in ozone depletion.
When were CFCs banned in Australia?
31 December 1995
What is the strongest evidence that CFCs are in the stratosphere?
55 Cards in this Set
| R-134 a refrigerant charged systems should be leak checked with: | Pressurized nitrogen |
|---|---|
| What is the strongest evidence that CFC’s are in the stratosphere? | Measurement of CFC’s in air samples from the stratosphere |
What is being done in the US to stop damage to the ozone layer?
Stratospheric Ozone. What is being done in the U.S. to stop damage to the stratospheric ozone layer? A. Using natural gas instead of coal to generate electricity.
What is the best drop-in replacement for R22?
R-407c
Is there a drop-in replacement for R-22?
In the USA there is no drop-in replacement for R22. The EPA guidelines state that there cannot be a drop-in replacement without modifying the system components.
Can you put a 410A condenser on a R22 coil?
Can I use an R410A condenser with an R22 air handler? No, you cannot. To make a short story long, R410A and R22 are refrigerants. They are both good refrigerants and they both work, but they have to be charged in the system at different pressures.
Can R22 and R410A be mixed?
R-22 and R-410a are both refrigerants, true. They can both be used in air conditioners or heat pumps to cool your home during summer. You should never, ever try to mix them in the same system, or use them in a system not rated specifically for that kind of refrigerant.
What would happens if you put R22 in a 410A system?
Understand this: The mineral oil in a compressor has a vapor pressure. If that’s so, then what R22 there is in the system can never evaporate under the higher suction pressure of R410a. It will just flood back to reduce the compressor life and will greatly reduce the system capacity.
Can R12 and R22 be mixed?
R12 and R22 are both now banned by the EPA in the United States. Mixing R22 with R407C or any other refrigerant. According to the 609 EPA rule, mixing refrigerants is illegal and anybody caught doing so will be heavily fined. If your system is running on R22 most likely is using mineral oil to lubricate the compressor.
Can a 410A compressor be used with R22?
No. You can’t do that. It probably wouldn’t work. Even though you put a compressor in there that’s R410A, the rest of condenser probably isn’t tested and rated for operating at R410A pressures because R410A has to operate at a higher pressure.