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A recovery cylinder which is half full of recovered R-410A at 90 degrees F in the absence of non-condensables will be pressurized to?
A recovery cylinder that is half full of recovered R-410A at 90 degrees F will be pressurized to approximately 50-60 psi. This pressure is determined by the saturation pressure of R-410A at that temperature. Since R-410A is a blend of refrigerants, it does not have a true boiling point, but at 90 degrees F, it will exert this pressure in the absence of non-condensables. Always ensure proper safety protocols when handling refrigerants.
Is freon the same as R-22 and what is the price per pound for freon?
Freon is a brand name now commonly used in the industry for most refrigerants (as the brand Kleenex is commonly used for all facial tissues). R-22 is a blend that is scheduled to be obsolete in 2020. Manufacturers may not produce R-22 air conditioners and heat pumps after January 1, 2010. A 30 pound tank of R-22 is about $375 or $12.50 per pound as of 05-2014. This is actually about $1 less than R-410a, yet service companies will charge as much as $70 per pound to the consumer. Freons require special certifications to purchase which are costly to obtain thru classes & federal EPA monitoring and testing plus the old freon must be reclaimed and recycled or destroyed by special collection processes and expensive equipment, all which is figured into the consumers final cost per pound. So There is reason for this other than to encourage the consumer to purchase a new system. The most common new refrigerant being used in new systems is R-410A and is commonly referred to by the brand name Puron. R-410A is NOT a retrofit replacement for R-22 in existing systems as it requires higher system pressures. Currently, the best retrofit replacements for R-22 are R-421A and R-422B (trade name NU22B). These may be substituted for R-22 after a complete system evac and filter change with no oil change required. Another excellent retrofit is R-427A which was designed exclusively for retrofit use, however it does require an oil change.
The internal pressure of a cylinder with one ounce of liquid R-410A refrigerant which has been sitting in a 100 degree Fahrenheit truck is?
The internal pressure of the cylinder containing R-410A refrigerant would be approximately around 186 psi when sitting in a 100 degree Fahrenheit environment. This pressure value is based on the saturation pressure of R-410A at 100°F. Make sure to consult a pressure-temperature chart for accurate readings.
What is the 410a operating pressure?
The 410a operating pressure is 7.037 Barg or 102.036 psig.
What internal pressure of a cylinder with one ounce of liquid R-410A refrigerant which has been sitting in a 100 degree Fahrenheit truck is?
The internal pressure of a cylinder containing R-410A refrigerant with one ounce of liquid will depend on various factors such as the temperature-pressure relationship for R-410A and any external conditions affecting the temperature of the refrigerant. However, at 100 degrees Fahrenheit, the pressure of R-410A is approximately 228 psi.
The minimum safety-relief pressure for a R-410A cylinder is .?
minimum pressure is 525 psig for R-410A
If the evaporator outlet temperature on a r-410a system is 50p and the evaporator superheat is 10p, what is the evaporating pressure of the refrigerant in this system?
8.2
What is the internal pressure of a cylinder with one ounce of liquid R-410A refrigerant which has been sitting in a 100 degree Fahrenheit truck is?
The internal pressure of the cylinder would depend on the temperature of the refrigerant. At 100 degrees Fahrenheit, the pressure of R-410A refrigerant would be approximately 212 psi at equilibrium.
What is the low side and high side pressure for r410a?
Technicians with R-22 experience will need to become familiar with working with high and low side pressures that are much higher when using R-410A. A typical R-22 system operating normally with a head pressure of 260 psig at a 120-degree condensing temperature and a low side pressure of 76 psig at a 45-degree evaporator saturation temperature will find the equivalent pressures in a R-410A system to be much higher.A normally operating R-410A system with the same condensing temperature of 120 degrees and a 45 degree evaporator saturation temperature will have a high side pressure of 418 psig and a low side pressure of 130 psig.Although refrigerant 410A is a near-azeotrope and has a slight temperature glide, there is no need to correct for refrigerant dew point and bubble point differences. Superheat and sub cooling calculations can be calculated the same way we have always done with R-22 refrigerant. The only difference will be the higher pressure-temperature relationship when reading the temperature-pressure chart. The temperature glide for R-410A is only .3 degrees Fahrenheit and can be ignored and fractionation is not a concern.
Why you cant pump down r-410a system?
You can pump down an R-410A system, but it may not be as effective as with other refrigerants due to the higher operating pressures of R-410A. It can take longer to remove all the refrigerant from the system due to its higher pressure. It's important to use a reclaimer to capture and store the refrigerant properly during the pump down process.
To change the compressor on a system containing R-410A you must isolate the compressor then?
To change the compressor on a system containing R-410A you must isolate the compressor then?
The minimum safety-relief pressure for a R-410A cylinder is?
The minimum safety-relief pressure for a R-410A cylinder is typically around 550 psi. This pressure is set to prevent over-pressurization of the cylinder, ensuring safe handling and storage of the refrigerant. It is important to always refer to the manufacturer's guidelines for specific pressure requirements.
Can you mix 410a with r-12 in a cars ac system?
No
A recovery cylinder which is half full of recovered R-410A at 90 degrees F in the absence of non-condensables will be pressurized to?
A recovery cylinder that is half full of recovered R-410A at 90 degrees F will be pressurized to approximately 50-60 psi. This pressure is determined by the saturation pressure of R-410A at that temperature. Since R-410A is a blend of refrigerants, it does not have a true boiling point, but at 90 degrees F, it will exert this pressure in the absence of non-condensables. Always ensure proper safety protocols when handling refrigerants.
