all refrigeration standing pressure in psi
No. You absolutely cannot mix any refrigerants. You should completely recover all the old refrigerant and charge the system, with the new refrigerant, using the superheat method.
Standing pressure in air conditioning refers to the pressure in the refrigerant lines when the system is not actively running or in a static state. It is an important parameter for diagnosing the health of the AC system; for instance, it helps determine if the refrigerant charge is adequate or if there are potential leaks. Typically measured in psi (pounds per square inch), standing pressure can vary depending on the refrigerant type and ambient temperature. Proper evaluation of standing pressure is crucial for maintaining efficient system performance.
Refrigerant is not used to pressurize a system for a standing pressure test because it is a volatile substance, which can pose safety risks at high pressures. In addition, refrigerant can leak easily through seals or connections, which can compromise the effectiveness of the pressure test. Instead, inert gases such as nitrogen are typically used for pressurizing systems during pressure tests.
You cool it and run it through a metering devise.
The pressure and the specific refrigerant properties determine the temperature at which a refrigerant vaporizes. As pressure increases, the boiling point of the refrigerant also increases. Different refrigerants have different boiling points at different pressures.
R22
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The function of the condenser is to release heat from the refrigerant, causing it to condense from a gas to a liquid state. This process increases the pressure of the refrigerant.
When refrigerant leaves a compressor, it is at high pressure and high temperature. The compressor raises the refrigerant's pressure as it compresses the gas, preparing it for the next stage of the refrigeration cycle. This high-pressure refrigerant then moves to the condenser, where it releases heat and changes state.
what happens when refrigerant enters the condenser
Not without a proper conversion.
there is no set answer ,you have to ajust pressure using subcool and superheat. if these terms confuse you i recomend calling an hvac contractor