what is the charging schedule for a 2 1/2 ton unit 70degree ambient temp what is the suction pressure supposed to be
To convert an HVAC system from R22 to R410a using a conversion kit, the process typically involves recovering the existing R22 refrigerant, replacing the compressor oil with a compatible oil for R410a, installing a new filter drier, flushing the system to remove any remaining R22, and then charging the system with the new R410a refrigerant. It is important to follow manufacturer guidelines and consult with a professional HVAC technician to ensure proper conversion and system performance.
To determine if a refrigerant charge is correct using R22, you would need to measure the suction and discharge pressure and temperature, calculate the superheat and subcooling values, and compare them to the manufacturer's specifications or recommended values for the specific system. Adjust the refrigerant charge if the measurements are outside the acceptable range to ensure optimal system performance.
No
NO ! and Why?
No, R22 is for refrigerators and home AC. It runs at a different pressure and you can't use one for the other.
No R134a is used only the cars, and R22 is only used for home central ac system. If you would like more information about R134a you can log on to www.idqusa.com.
No the whole system need to be evacuated of the r22 before you put r22a in the system. It's against the law to mix 2 different freons together and also dangerous.
The condensing temperature for an R22 system with a head pressure of 296 psig would typically be around 120-130°F. This is based on the saturation temperature corresponding to a pressure of 296 psig on the R22 pressure-temperature chart.
The conversion rate of refrigerant R22 to horsepower is not a simple one-to-one ratio. The amount of refrigerant R22 required for a system depends on different factors such as the type of system, size of the system, and operating conditions. It is best to consult manufacturer specifications or a professional HVAC technician for precise information.
The simple answer is that an R12 system wasn't designed for R22. There are different pressures reached, there are different compressor oils used, and R22 may not even be compatible with a compressor designed for R12. Changing an R12 system to R22 could be done, but it would require extensive conversion, and would still be undesirable - R22 is being phased out, largely because it's a carcinogen and because of the harsh environmental effects.
Not unless you like the idea of destroying your AC system.
No, you should not mix R22 and R22a refrigerants together. Mixing different refrigerants can lead to system inefficiency, reduced cooling capacity, and potential damage to the equipment. It is important to use the correct refrigerant specified by the manufacturer for your system.