Most new equipment is built for and charged with R410a, a refrigerant with much higher pressures than the R22 used for decades, R22 units are still available, dry charged however, you must fill them with R22 onsite. This is how new R22 compatible equipments being sold still.
r22
it would be R-22.. brand new units will have the new refrigerant and that is R-410
it depends on many factors, like indoor and outdoor temps, and type of system and refrigerant being used.
The two most commonly used refrigerants in home air conditioning units are R-410A and R-22. R-410A is a more environmentally friendly option that has largely replaced R-22, which is being phased out due to its ozone-depleting properties. While R-22 is still found in older systems, R-410A is now the standard for new AC units.
Your condensor outside , where the compressor is . should have an information plate showing the type of refrigerant used
Central unit used with a chiller system or individual units with a evaporator and condenser instead that wall units.
No, manufacturer's cannot make new outside units that use the old R22 refrigerant. However, R22 refrigerant will continue to be made until Jan. 1, 2021, then it will be recycled until Jan 2030 (unless further changed by the law)
Disposable refrigerant containers are only used for virgin refrigerant.
They use R410a eco friendly refrigerant gas now.
In the US, most home central AC units operate on a 240V/30-Amp circuit. However, it is always important to check the unit's nameplate to determine what exact voltage and amperage of fuses that should be used.
Modern home freezers don't contain ammonia; but ammonia can be used as a refrigerant.
Central air conditioning is centralling located and can be used to cool several units. It has a central control that controls temperatures for multiple rooms.