Pressure on 410a refrigerant

That's correct! Refrigerant 410a, also known as R-410a, is a hydrofluorocarbon (HFC) refrigerant commonly used as a replacement for R-22 in residential and light commercial air conditioning and heat pump systems. It has become the leading choice for such systems due to its high cooling capacity and significantly higher pressure compared to R-22.

Pressure on 410a refrigerant. TEMPERATURE - PRESSURE CHART FOR R-22, R-410A, R-407C, R-134A & R-404A REFRIGERANTS FYI #289 9/17/2009. updated 10/10/2012. Data points are reproduced …

Recharge kit with gauge and hose $29.95. Now with a new shut-off valve standard ¼ ” SAE. R410A 2 lb. FREE SHIPPING NATIONWIDE (CONTINENTAL US) 100% VIRGIN FACTORY SEALED. GUARANTEED PRODUCT QUALITY. Ability Refrigerant stocks a large store of R22, R410A, MO99, 407C, 404A and R134A. VIEW SAFETY DATA SHEET. 95%.

R410A is a blend of two hydrofluorocarbon (HFC) refrigerants: R32 and R125. These two components work together to create a refrigerant with excellent thermodynamic properties. R32 provides high energy efficiency, while R125 contributes to the stability and heat transfer performance of R410A. When it comes to the chemical composition of R410A ...Measuring the pressure of R134A refrigerant on a hot summer day. The pressures in the PT chart are expressed in psig or gauge pressure. That’s very practical; we always use a pressure gauge meter when measuring the pressure in refrigerant lines.. Note: R134A is chemically named 1,1,1,2-Tetrafluoroethane. For on-site use, we include a printable …Understanding R410A Refrigerant. R410A refrigerant, also known as Puron, Forane 410A, Genetron R410A, EcoFluor R410, and Suva 410A, is a popular choice for air conditioning applications. It has a higher cooling capacity and is more energy-efficient than older refrigerants like R-22.Or download onto your own device. P-T Calculator. This comprehensive Pressure/Temperature calculation tool provides several unique features designed to make the HVAC/R technician’s job easier. Available for iOS and Android devices: For more information, call 800-262-0012. or e-mail [email protected] miles south of Nashville, outside the city of Columbia, where the restaurants offer Bar-B-Q and catfish, is an unlikely piece of smokestack America. There, nestled amid the p...November 2, 2003. Several major manufacturers are producing comfort air conditioning equipment using refrigerant 410A. The trend towards the use of R-410A continues to grow and there is a demand for technicians who are comfortable working with this higher-pressure replacement for refrigerant 22. Due to the differences between R-22 and the …Mini Split Adapter, R410A Adapter, R-410a Refrigerant Adapter, 5/16In SAE Female Quick Couplers to 1/4In SAE Male Flare, 45 Degree Charging Vacuum Adapter, R410a Manifold Gauge Set, (2 Packs) 54. $899. FREE delivery on $35 shipped by Amazon. Usually ships within 2 to 4 weeks.1. Optimal Cooling. When the low side pressure operates within the recommended range for 410a, your system can efficiently absorb heat from your indoor environment. Any deviation from this range might compromise the cooling efficiency, leaving certain areas less cooled than others. 2.

Table of Contents. Refrigerant R-410A Pressure Temperature Chart - This R410A PT Chart will help you when charging a system that utilizes R-410A. Furthermore, R410A is …Quick Example: Let’s say that we have a 3-ton 16 SEER AC are using R-410A refrigerant and want to calculate R-410A superheat. With low side blue gauge on the suction line service port, we measured 130 psi pressure that correlates (according to R-410A PT chart) to about 45°F. The clamp-on thermometer shows that the saturated refrigerant ...The R410A PT chart can be used to answer questions like: What are normal operating pressures for 410A? What is the pressure of r410a at 72 degrees Fahrenheit? What should gauge read for 410A? You can also use the R-410A PT chart to adequately calculate the superheat, total superheat, and subcooling temperatures.R-410A refrigerant costs approximately $8 to $12 per pound or about $200 to $300 per 25-pound container. Starting in 2020, the EPA banned the import and purchase of R-22 Freon. If you have an older unit that takes R-22 refrigerant, you can’t simply add R-410A because of the pressure differences between the two products.30 Oct 2019 ... This video will explain you about safety precautions to be taken while handling R-410a refrigerant, it alos explain about pressure testing, ...What is the function of the fan in a refrigerator? Can a refrigerator keep cool without a fan? Advertisement Many older refrigerators and most small refrigerators (like small bar a...number for specific refrigerant). R-410A is a high-pressure refrigerant that requires the other components of the system to be rated for R-410A. For compressor lubrication, the refrigerant requires POE oil. Tranes ’ BCHC and BCVC 024-090 blower coil air hand ler products have also b een redesigned for use with the higher pressures of R-410A.

The low side pressure of a typical R410A mini split is between 110-140 psi depending on the operating conditions. Though it can vary, the low side pressure of a mini split should not fall below 100 psi or raise beyond 160 psi. The working pressure of mini splits is depending on factors such as the weather and cooling load.Recently a new refrigerant, R-410A, has been formu-lated and currently is being used in the HVAC/R industry. It was developed primarily because the pro-duction of R-22 is scheduled to stop soon. The phaseout schedule for R-22, as mandated by the Environmental Protection Agency (EPA), will be dis-cussed in more detail at the end of …The normal pressure for a typical R-401A mini-split ranges from 110-140 psi. However, keep in mind that the working pressure depends on factors like cooling load and weather. … 410A refrigerant (ASHRAE designation: R-410A [50/50]), have been developed and are presented here. These tables are based on extensive experimental measurements. Equations have been developed, based on the Martin-Hou equation of state, which represent the data with accuracy and consistency throughout the entire range of

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Freon™ 404A (R-404A) is a blended hydrofluorocarbon (HFC) refrigerant comprised of R-125, R-134a, and R-143a. It was designed to replace R-502 and R-22 used in commercial refrigerator equipment for low and medium temperature ranges. Its properties make it ideal for use in display cases, refrigerated vehicles, ice makers, and other applications.Suva® 410A refrigerant [ASHRAE designation: R-410A (50/50)], have been developed and are presented here. These tables are based on extensive experimental measure- ... of temperature, pressure, and density. Vapor enthalpy and entropy are calculated from the standard Martin-Hou equations. Additional equations have been developed for the ...The 410A Pressure-Temperature Calculator is a powerful tool for HVAC professionals, enabling quick and accurate pressure calculations for the R-410A refrigerant. By simplifying complex calculations, it aids in the design, maintenance, and troubleshooting of HVAC systems, ensuring they operate efficiently and effectively.Thermodynamic Properties of DuPontŽ Suva ® 410A Refrigerant English (I/P) Units New tables of the thermodynamic properties of DuPont™ Suva® 410A refrigerant [ASHRAE designation: R-410A (50/50)], have been developed and are presented here. These tables are based on extensive experimental measure-ments. Equations have been developed, based ...

Typical Low Side Pressure Range for R410A in the field: 115-120 psi. Typical High Side Pressure Range for R410A in the field: 410-420 psi. By 2025, high Global Warming …R-410A Environmental Classification HFC Molecular Weight 72.6 Boiling Point (1atm,°F) -61.0 Critical Pressure (psia) 691.8 Critical Temperature (°F) 158.3 Critical Density (lb./ft^ …Effects of Overcharging the Refrigerant Level in an Air Conditioner, Heat Pump, or other refrigeration equipment. Effects of too much refrigerant in the system - overcharging, over-metering, or other high refrigerant pressure situations: normally we want the low side pressure to be as low as possible for refrigeration systems. Excessive refrigerant in …Because R-410A differs from R-22 in several respects, including operating pressure, some trade schools offered classes and certifications for R-410A specifically. These are not equivalent to a section 608 certification.The weight of an empty R-410A refrigerant cylinder can vary, but it is typically around 20 to 25 pounds (9 to 11.3 kilograms). What refrigerant is replacing R410A? Several low-GWP refrigerants, such as R-32, R-454B, and R-452B, are being considered as replacements for R-410A in various regions.20 Mar 2024 ... This video is a few minutes on hvac refrigerant pressure switches. You can find them in straight ac units or heat pumps but they are not ...Feb 2, 2003 · The higher pressure of R-410A makes it less safe than R-22. Although the pressure of this refrigerant is about 60 percent higher than R-22, the systems, components, service tools, and refrigerant cylinders (both new and recovery) are all designed to safely handle this pressure with a safety margin similar to that for other refrigerants, such as ... Refrigerant Pressure-Temperature Home Back. Choose Refrigerant: R-410A R-22 °C °F: Psig-40-39-38-37-36 ... The low side pressure of a typical R410A mini split is between 110-140 psi depending on the operating conditions. Though it can vary, the low side pressure of a mini split should not fall below 100 psi or raise beyond 160 psi. The working pressure of mini splits is depending on factors such as the weather and cooling load.

Cooling Pressure (PSI) @ Service Port (Tolerance +/‐5) Outdoor Temp (°F) Refrigerant Pressure vs. Temperature Charts for Pioneer Split Systems (R410a) 68 115 119 123 127 131 135 139 143 147 71 120 124 128 132 136 140 144 148 152 ‐ m p (°F) 74 125 129 133 137 141 145 149 153 157

Forane 410A Pressure Temperature Chart Forane 410A, R-410A, Pressure Temperature Chart, PT Chart, HVAC, refrigeration, air conditioning, refrigerant gas5 Jun 2021 ... Comments1 · Charging R-410A Refrigerant into an Air Conditioner! · How I Add Refrigerant to an Air Conditioner · R22 and R410A Refrigerant ...HIGH PRESSURE R-410A R-454B R-32 Flammability ASHRAE® Class 12L 2L Toxicity1 ASHRAE® Class Lower (A) Lower Lower OEL 1000 850 1000 Effi ciency (COP) 7.99 8.16 8.22 Capacity Change baseline ~3% loss ~8% gain GWP2 2088 467 675 Atmospheric Life 17 years 3.6 years 5.2 years Equipment that uses high-pressure refrigerants: scroll …The experimental apparatus established in the present study, as schematically shown in Fig. 1, to investigate the condensation heat transfer and associated frictional pressure drop of refrigerant R-410A in a vertical PHE consists of four independent loops and a data acquisition system.It includes a refrigerant loop, two …Refrigerants - Physical Properties. 1) Production of R11 or CFC-11 was halted by the clean air act on January 1, 1996. 2) Production of R12 or CFC-12 (Dichlorodifluoromethane) was halted by the clean air act on January 1, 1996. 3) R22 or HCFC-22 is a single component HCFC refrigerant with low ozone depletion potential.You can see that this R410A pressure chart includes high and low side pressures at temperatures ranging from -60 °F to 155 °F. Higher temperature equates to higher pressure. Here are 4 examplesof how you can use this chart: Example 1: What is the pressure of r410a at 72 degrees Fahrenheit? We can see that at … See more Saturation Pressure-Temperature Data for R410A (psig)*. ECLPC-1 Rev 1 – 02/22. R410A is very commonly used refrigerant that is known as AZ-20”, “Genetron R410A”, “Puron. It is patented by Honeywell. It is mostly used freon in AC systems and works as a replacement for R22. Here we will make an R410A Pressure-Temperature Chart that will help you find its working for different temperature ranges.An R-22 Replacement for New ACs and Heat Pumps. Freon™ 410A (R-410A) refrigerant offers higher cooling capacity and significantly higher pressure than R-22 for use in systems specifically designed for R-410A. This hydrofluorocarbon (HFC) refrigerant is compatible with polyolefin (POE) oils and replaces R-22 in positive displacement air ...Mar 16, 2024 · The purpose of the 410A PT Calculator is to accurately determine the pressure of R-410A refrigerant at various temperatures. Given the non-linear relationship between temperature and pressure for R-410A, the calculator provides a quick and accurate way to perform these calculations, essential for efficient HVAC system design, troubleshooting ...

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Use a pressure conversion chart to change the high side pressure to saturated temperature. Deduct the liquid-line temperature from the saturation temperature of R-410A refrigerant in the condenser to compute the sub-cooling value. On the manufacturer's data sheet find the correct operating pressures for the circumstances … Water-cooled systems utilizing R410a refrigerant demand special regulating valves first introduced by Metrex Valve in 2000. Higher system pressures also make longer pipe separations achievable. Compressor displacement decreases by 30% and the heat transfer ratio improves by 35%. This allows for the use of smaller physical size system-components ... Freon™ Pressure/Temperature Chart App. The P/T Calculator provides technicians with refrigerant data on the go. Learn More. Sales & Support. Where to Buy; ... Freon™ 410A (R-410A) Refrigerant; Freon™ MO29 (R-422D) Refrigerant; Freon™ MO59 (R-417A) Refrigerant; Freon™ 123 (R-123) Refrigerant;Refrigerant Pressure - Temperature Chart. Pressure values are displayed for R-22, R-410a, R-407c, R-134a and R-404a refrigerants. Items Displayed in Red shows pressure in inches of Mercury. Items Displayed in Black shows pressure in pounds per inch gauge. Data points are reproduced based on available information.Dec 18, 2023 · R-410A refrigerant costs approximately $8 to $12 per pound or about $200 to $300 per 25-pound container. Starting in 2020, the EPA banned the import and purchase of R-22 Freon. If you have an older unit that takes R-22 refrigerant, you can’t simply add R-410A because of the pressure differences between the two products. What is R-410A? R-410A is an HFC refrigerant that is a blend of the HFC R-32 and the HFC R-125. This refrigerant was designed to be a safe, non-toxic, non-flammable, and reliable alternative to the HCFC R-22. It was invented in 1991 but did not begin to see real popularity until the 2000’s.A typical R410A refrigerant tank is pressurized to about 400 psi while the typical low side pressure of a mini split is 110-140 psi. So, if you didn’t wait for the pressure to stabilize every time you release the refrigerant into the mini split, you may end up putting too much refrigerant in the mini split.The Internet of Things—a world where most working objects are online in some fashion—promises to change everyday life and boost the economy. But who knew it could make it cheaper t... ….

R-410A! AVAILABLE IN SIZES "REFRIGERANT Type Size R-410A Cylinder 25 lb. 100 lb. 850 lb. 1,450 lb. R-410A Composition: (R-32 / 125) • (50 / 50 wt%) Application: Air conditioning equipment and heat pumps. Only for newly manufactured equipment, NOT for retrofitting R-22 Performance: Pressures are 60% higher than R-22, therefore should …For the most part the standard procedure is to add a little 410a and bring the pressure up to 117 - 120psi on the low pressure line then see if ...What is the function of the fan in a refrigerator? Can a refrigerator keep cool without a fan? Advertisement Many older refrigerators and most small refrigerators (like small bar a...sure. R-410A is a higher-pressure refrigerant than R-22 and should be used only in equipment specifically designed for R-410A. R-410A systems can be designed to provide higher energy efficiency than R-22 and will meet and exceed U.S. Department of Energy efficiency guide-lines. Equipment designed for R-410A has up to 60 percent greater …Eco-Safe R-410A Refrigerant & MrCool. August 10, 2016. By MR COOL. Eco-safe R-410A refrigerant is the new standard for American air conditioners and heat pumps. As you might expect, it’s also the main refrigerant we use here at MrCool. The government, of course, required companies like us to adopt refrigerants like R-410A, but do you know why?r-410a pressure temperature chart psig f° psig f° psig f° psig f° psig f° psig f° 12 -37.7 114 37.8 216 74.3 318 100.2 420 120.7 522 137.6 14 -34.7 116 38.7 218 74.9 320 100.7 422 121 524 137.9 16 -32.0 118 39.5 220 75.5 322 101.1 424 121.4 526 138.3November 2, 2003. Several major manufacturers are producing comfort air conditioning equipment using refrigerant 410A. The trend towards the use of R-410A continues to grow and there is a demand for technicians who are comfortable working with this higher-pressure replacement for refrigerant 22. Due to the differences between R-22 and the newer ...system charge chart - refrigerant 410a pressure at suction service port (psig) connect pressure gauges to suction and liquid ports on unit. measure air temperature to outdoor coil. place an "x" on the appropriate chart where the suction and liquid pressures cross. if "x" is below ambient temperature line, add charge and repeat step 3. Pressure on 410a refrigerant, Refrigerant Pressure - Temperature Chart. Pressure values are displayed for R-22, R-410a, R-407c, R-134a and R-404a refrigerants. Items Displayed in Red shows pressure in inches of Mercury. Items Displayed in Black shows pressure in pounds per inch gauge. Data points are reproduced based on available information., An R-22 Replacement for New ACs and Heat Pumps. Freon™ 410A (R-410A) refrigerant offers higher cooling capacity and significantly higher pressure than R-22 for use in systems specifically designed for R-410A. This hydrofluorocarbon (HFC) refrigerant is compatible with polyolefin (POE) oils and replaces R-22 in positive displacement air ..., R22 can absorb and release less heat which can lead to compressor burnout over time. On the other hand, R-410A can handle more heat allowing the compressor to run cooler. The compressors used in new AC units are built to withstand greater pressure that is caused by R-410A refrigerant., SUBJECT: TEMPERATURE - PRESSURE CHART FOR FYI #289 9/17/2009 R-22, R-410A, R-407C, R-134A & R-404A REFRIGERANTS ADVANTAGE Engineering, Inc.525 East Stop 18 Road Greenwood, IN 46142 317-887-0729 fax: 317-881-1277 web site: www.AdvantageEngineering.com email: [email protected], The temperature glide of the refrigerant R-410A and its potential direct substitutes are shown in Fig. 12, which was developed using the REFPROP database [64], keeping the condensation pressure at 20 bar, as a reference, and the evaporation pressure at 5 bar. Moreover, the average operating temperatures (equivalent to …, TEMPERATURE - PRESSURE CHART FOR R-22, R-410A, R-407C, R-134A & R-404A REFRIGERANTS FYI #289 9/17/2009. updated 10/10/2012. Data points are reproduced based on available information. Advantage assumes no responsibility or liabililty for data errors. ADVANTAGE Engineering, Inc. 525 East Stop 18 Road Greenwood, IN 46142 …, The primary reasons for doing this are simple. One, if you recharge the refrigerant at incorrect pressure and temperature, some of your system components may fail. ... it has a lower global warming potential than R-410A. 407C has a GWP of 1774, while 410A is at 2088. The refrigerant is also safe to use if you use the proper procedure …, Some people have low blood pressure (hypotension). It is only a problem if it causes dizziness, fainting, or shock. Learn about what can cause it. You've probably heard that high b..., Refrigerants - Pressure vs. Temperature Charts Temperature and pressure chart for refrigerants R22, R410A, R12, R134A, R401A, R409A, R502, R404A, R507A, R408A and R402A. Search Search is the most efficient way to navigate the Engineering ToolBox. Popular internal searches in the Engineering ToolBox, Varies by Manufacturer. Refrigerant R410a 25lb Cylinder Application: R-410A has replaced R-22 as the preferred refrigerant for use in residential and light commercial air-conditioning and heat pump systems. It has a higher cooling capacity than R-22 and is significantly higher in pressure. R410A was not designed to retrofit existing R22 syst., The high side pressure, in contrast, refers to the refrigerant pressure in the discharge line. This is basically the pressure after the compressor. Even though the ideal pressure range for an R-401A air conditioner falls in the range of 110-140, its low side pressure should not be less than 100 psi, nor should it be more than 160 psi., r-410a pressure temperature chart psig f° psig f° psig f° psig f° psig f° psig f° 12 -37.7 114 37.8 216 74.3 318 100.2 420 120.7 522 137.6 14 -34.7 116 38.7 218 74.9 320 100.7 422 121 524 137.9 16 -32.0 118 39.5 220 75.5 322 101.1 424 121.4 526 138.3 , This is a Step by Step Process (In Real-time) of Adding R-410A Refrigerant into a System that is a little Undercharged! We use the Subcooling Process to show you how far the Charge is off and Exactly what we need to do to Add Refrigerant and How to Verify that we have the Correct Charge once we are complete. Support-Tool List-, Systems operating on R410A run at a pressure of about 1.6 times that of similar systems operating on R22. Energy efficiency is comparable to R22. Although R410A is a zeotropic refrigerant, the whole refrigerant behaves almost as if it was an azeotrope. This is because there are only two refrigerants in the mixture and these two refrigerants ..., R22 Refrigerant Pressure Temperature Chart. Pressure Temp Chart R-11, R-12, R-22, R123, R134A, R404A, R-500, R502. Using an HVAC refrigerant pressure temperature chart is necessary to be sure a unit is operating correctly. Below are three free pressure temperature charts that can be used to troubleshoot an HVAC unit., 3 Aug 2020 ... Question: An air conditioner with refrigerant R-410a has a high-side pressure of 340 psig and a temperature of 95°F. According to the ..., All welded OEM pressure transmitter for use on refrigeration application with R22 and R410A refrigerant up to 400 psig. 17.609G Pressure Transmitter. 17-609G data sheet; Pressure Range: 0 – 400 psi g; Output: 4 – 20mA / 2 wire; Supply Voltage: 8 – 32V dc; Electrical Connection: Male & female plug ISO 4400 , FreonTM 410A is a non-ozone depleting blend of two HFC refrigerants. It exhibits higher pressures and refrigeration capacity than R-22. The compositions of FreonTM 407C and …, All welded OEM pressure transmitter for use on refrigeration application with R22 and R410A refrigerant up to 400 psig. 17.609G Pressure Transmitter. 17-609G data sheet; Pressure Range: 0 – 400 psi g; Output: 4 – 20mA / 2 wire; Supply Voltage: 8 – 32V dc; Electrical Connection: Male & female plug ISO 4400, What is the pressure at 100 degrees on 410A? At around 100 degrees Fahrenheit (approximately 37.8°C), the pressure for R-410A could be approximately 300 …, The 410A Pressure-Temperature Calculator is a powerful tool for HVAC professionals, enabling quick and accurate pressure calculations for the R-410A …, This is where our friend R-410A came into play. New machines from 2010 and onwards were banned from using R-22. Instead, they were outfitted with R-410A. If you would like to read more about R-410A refrigerant please have a look at our Puron fact sheet. R-410A PT Chart. Let’s take a look at our pressure table for R-410A Puron., Most technicians in the HVAC field know the normal range of operation for the low-pressure side of an air conditioning system. This tends to be around 60 PSI to 85 PSI for R-22 and 105 PSI to 143 PSI for R-410A and is dependent upon operating conditions. On the high-pressure side of the system, there is a wide variation in …, R-410A, also known as HFC-410A, is a type of refrigerant used in commercial refrigeration and air conditioning systems. It is used in residential and commercial applications that include heating and cooling as well as dehumidification. Unlike older refrigerants like R12 or R22, R410A does not contain chlorine or bromine (which makes it non ..., 410A operates at a much higher pressure than R-22, between fifty to sixty percent higher. To accommodate this increased pressure the compressors and other components are built to withstand the greater stress. Some people describe these components as having a ‘thicker wall.’. If you were to use an R-22 compressor on a …, Jan 4, 2023 · R32 is a single compound, while R410A is made from a mixture of R32 and R125. R410A has high pressure making it difficult to handle. R32 has higher cooling efficiency. In AC gas refilling, less R32 is required than R410A. R32 is moderately more flammable than R410A. What are the Advantages of Switching to R32. More efficient. , 20 Mar 2024 ... This video is a few minutes on hvac refrigerant pressure switches. You can find them in straight ac units or heat pumps but they are not ..., What is R-410A? R-410A is an HFC refrigerant that is a blend of the HFC R-32 and the HFC R-125. This refrigerant was designed to be a safe, non-toxic, non-flammable, and reliable alternative to the HCFC R-22. It was invented in 1991 but did not begin to see real popularity until the 2000’s., Composition of refrigerant r410a. Refrigerant R410-a is a two-component substance. The composition of the r410a refrigerant includes: Refrigerant r32, difluoromethane (50%); Refrigerant r125, pentafluoroethane (50%). The components that make up 410 refrigerant gas have similar characteristics and the dependence of boiling …, Forane 410A Pressure Temperature Chart Forane 410A, R-410A, Pressure Temperature Chart, PT Chart, HVAC, refrigeration, air conditioning, refrigerant gas, Why R-410A Is Being Phased Out. Because R-410A operates at such high pressures, there is an increased risk of an environmentally harmful refrigerant leak during maintenance and repair work. The R-410A phase-out means new HVAC systems will use more sustainable refrigerants. The American Innovation and Manufacturing (AIM) Act of 2020 directed ..., Recharge kit with gauge and hose $29.95. Now with a new shut-off valve standard ¼ ” SAE. R410A 2 lb. FREE SHIPPING NATIONWIDE (CONTINENTAL US) 100% VIRGIN FACTORY SEALED. GUARANTEED PRODUCT QUALITY. Ability Refrigerant stocks a large store of R22, R410A, MO99, 407C, 404A and R134A. VIEW SAFETY DATA SHEET. 95%., This article refers to troubleshooting refrigerant charge on 410a and R22 residential air conditioning systems. Although many of the principles will carry over to other types of refrigerants and drop-ins. ... R410a suction pressure may be around 120psi, and R410a head pressure may be anywhere from 225psi to 350psi. Many conditions could apply ...