Pressure- Temp Chart Physical Properties of Refrigerants R22 Environmental Classification Molecular Weight Boiling Point (1atm,°F) Critical Pressure (psia) Critical Temperature (°F) Critical Density(lb./ft^ 3) Liquid Density (20 °F,lb./ft^3) Vapor Density (bp,lb./ft^ 3) Heat of Vaporization(bp,BTU/lb.) Specific Head Liquid( 20 °F, BTU/lb. °F)RS-44b Pressure/Temperature Comparison VALUES SHOWN: PSIG * DENOTES HG" RS-44b RS-44b R-22 TEMPERATURE LIQUID VAPOR BUBBLE PT. DEW PT. °C °F PSIG PSIG PSIGpressure replacement for R-22 in positive displacement, direct expansion (DX) air conditioners and heat pumps. This refrigerant is also suitable for use in many medium-temperature refrigeration systems that formerly used R-22. Freon™ 407C is the registered trademark for a blend of HFC-32/HFC-125/HFC-134a with a correspondingOne of the most common problems that happens when water pressure is too high is leaks in the plumbing. High water pressure can also cause faucets to make too much noise or cause sp...R22 Cooling - Low Suction Pressure. A heat pump or air conditioner runs with a lower-than-normal suction pressure. Customer typically reports low or no cooling. 1. Check Refrigerant Pressures. Hook-up refrigerant gauges to the pressure ports on the unit. Allow the unit to run for 5-10 minutes.R22 refrigerant, (also known as R-22 Freon and HCFC-22 Freon) is a chemical used in both air conditioners and heat pumps to cool your home. On January 1, 2020, the U.S. …Mar 31, 2015 ... R22 Under Charged System - HVAC Training Solutions. 64K views · 9 years ... R-22 and R-410A Operating Pressures on Air Conditioners! Checking ...Let’s use the target superheat formula and calculate this manually: Target Superheat (R-410A) = (3 × 69°F – 80°F – 105°F) / 2 = 11.0°F. We see that the target superheat for R-410A refrigerant in this system is 11°F. You can use the target superheat calculator above to get to this result much quicker.Aug 8, 2023 · 407C Pressures vs R22: An In-Depth Analysis. The pressure at which 407C and R22 work is one of the primary differences. R22 has a higher pressure than 407C, which indicates it takes more energy to compress and circulate. This can result in increased operational costs, and in certain cases, a shorter equipment lifespan. R22 refrigerant, (also known as R-22 Freon and HCFC-22 Freon) is a chemical used in both air conditioners and heat pumps to cool your home. On January 1, 2020, the U.S. … Higher than that. Need suction and liquid line temp to, cant diagnose off just pressures. RIP Ozone. Please call a real pro in you have bo business being on your own if you dont know what superheat and subcooling are. What is the normal operating pressures for a heat pump in heat mode on a 35 degree day? Reply . 12-08-2010, 07:40 PM #2. karsthuntr. View Profile65 psi R22 saturation temp is 37.5. Hard to believe it’s cooling the box at that saturation temp, maybe keeping it in the low 40s. Also you have no superheat. I’d expect to find high subcooling. Sounds likely overcharged. The reason the suction pressure doesn’t change when the solenoid valve closes is because the compressor doesn’t stay ...To make a short story long, R410A and R22 are refrigerants. They are both good refrigerants and they both work, but they have to be charged in the system at different pressures. R410A is a higher pressure system and R22 is a lower pressure system.Whether you have an established pressure washing business or you're just getting started, our pressure washing equipment list will help ensure you have everything you need. If you ...mitsubishi mr slim R22 proper pressures @94 degrees. I have worked a Mitsubishi Mr slim with freon R22 and was wondering why the liquid line is cool and sweating back to condensing unit.What is the proper liquid and suction line pressures for this system on a 92 degree day. Mini's, while technically a split system, are configured differently ...R-22 Replacements Pressure-Temperature Guide Key: Green (in of Hg) = Vacuum Black (psig) = Saturated Vapor (calculate Superheat) Bold (psig) = Saturated Liquid (calculate Subcooling)Temperature and pressure chart for refrigerants R22, R410A, R12, R134A, R401A, R409A, R502, R404A, R507A, R408A and R402A. Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!The increasing pressure, especially in Europe, to speed-up the HCFCs substitution, forced the research to find suitable candidates to replace R 22; it is desirable that the " optimum candidate " could be also a valid R 502 alternative. ... R22, in conjunction the lower politropic index, will be reflected in a higher compressor volumetric ...A pressure mark is a sign of physical damage to the inside of an LCD screen. It is related to, but not always synonymous with, the problem of dead or stuck pixels. Usually it is no...That was developed to replace R22. It is a new, more environmentally-friendly alternative to the older. More toxic refrigerant. The 410A and R22 are different in composition and properties. 410A has an increased boiling point. Which means that it can be used in higher temperatures. But it also means that it has a higher pressure. When compared ...Well water pressure tanks are connected to water wells and perform several vital functions in water supply systems. Here’s what you need to know about well water pressure tanks. A ...Critical Pressure (psia) 723.7 Critical Temperature (°F) 205.1 Critical Density (lb./ft^ 3) 32.7 Vapor Density (bp,lb./ft^ 3) 0.294 Heat of Vaporization (bp,BTU/lb.) 100.5 Global Warming Potential (CO2 = 1.0) 1810 ASHRAE Standard 34 Safety Rating A1 Refrigerant Boiling Point Physical Properties Refrigerant -80°F -40°F 0°F 40°F 80°F 120°F ...The Land Rover Tyre Pressure Chart with Recommended Tire Pressures and Torque setting, Land Rover Tyres in Norwich. Call (01603) 462959. Pure Tyre 01603 462959. Send a Whatsapp: 07451 277211 Normal Hours: Mon - Fri 8am - 6pm Out of Hours: 24 Hour Emergency Service Home; Tyre Info.A pressure mark is a sign of physical damage to the inside of an LCD screen. It is related to, but not always synonymous with, the problem of dead or stuck pixels. Usually it is no...R22 refrigerant, or R22 Freon, is used in a number of AC systems built before 2010. It was discovered that the chemicals that makeup R22 are detrimental to the ozone layer. The Environmental Protection Agency (EPA) launched a 10-year plan in 2010 to phase out ozone-depleting substances. For homeowners with HVAC units that were built prior to ...A proper tech would check pressures, temperatures (suction and discharge line, supply air and return air) compressor and blower motor amps (blower motor at the furnace/air handler). What type of metering device? There's thermo expansion valves, pistons, and capillary tubes. All of these would give us different readings.R22 has a very similar boiling point to R290 (-41.4°F to 44°F; that’s only a 2.6°F difference). At 100°F, however, the pressure of R22 is 195.9 psig and the pressure of R290 has a pressure of 174.3 psig (check the R290 PT chart below). This is a 20+ psig difference and you will easily tell if you have an R290 or R22 freon.Whether you have an established pressure washing business or you're just getting started, our pressure washing equipment list will help ensure you have everything you need. If you ...Whether you have an established pressure washing business or you're just getting started, our pressure washing equipment list will help ensure you have everything you need. If you ... To make a short story long, R410A and R22 are refrigerants. They are both good refrigerants and they both work, but they have to be charged in the system at different pressures. R410A is a higher pressure system and R22 is a lower pressure system. Thermodynamic properties of R22, like vapor volume, enthalpy and entropy at pressures from 30 to 260 psia . Engineering ToolBox - Resources, Tools ... Temperature and pressure chart for refrigerants R22, R410A, R12, R134A, R401A, R409A, R502, R404A, R507A, R408A and R402A. Search BP. BP. BP. -114.6°F. -115.6°F. -126.1°F. Before adding refrigerant charge, evacuate to proper vacuum level to remove non-condensable gases and to evaporate and remove moisture in the system. This chart shows the vacuum level and the temperature at which water will vaporize. The suction pressure of AC for R22 refrigerant is about 60 TO 70 PSI and the discharge pressure is 250 TO 300. What is boiling point of R-22? R22 is a colorless, …R22 gauge pressure is 10.9 bar or 158.2 psi. High side pressure typically varies by equipment and metering controls. Low pressure or suction side typically varies by equipment. Low-pressure refrigerant turns on the carrier HVACR at 50 psi (R22 pressure at 30 degrees) and closes at 100 psi (R22 pressure at 85 degrees).Whether you have an established pressure washing business or you're just getting started, our pressure washing equipment list will help ensure you have everything you need. If you ...Using the formulas provided: Condensing Temperature = 35°C + 10°C = 45°C. Evaporation Temperature = 27°C – 20°C = 7°C. These calculations serve as rough estimates. To ascertain the operational pressures of the compressor: For R22 refrigerant: High pressure is approximately 1.75 MPa. Low pressure is approximately 0.6 MPa.R407c is an HFC refrigerant that will replace the R22 refrigerant, as per Montreal Protocol. It is a mixture of R32 (23%), R125 (25%), and R134a (52%) that has a boiling point of -46.84°F. The same as R22, due to useful pressure-temperature properties, R407c is used in air conditioning systems, cars, and refrigeration units. Below, you will ...The compound gauge at left is used on the low pressure side of the system and shows pressure readings in black, from 0 to 300 psi gauge pressure. [Click any image to see an enlarged, detailed version.] Temperature corresponding to pressure is shown in red on this gauge for R12 and R22, or for newer refrigerants on newer gauges.Up to 10% lower capacity. Lubricant Recommendation: Compatible with mineral and alkylbenzene oil and if oil return becomes a concern, addition of polyolester lubricant in 5% increments could help resolve the issue. Retrofitting to: R-422B for R-22 Air Conditioning page 95. R-422B for R-22 Refrigeration page 95.R22, also known as hydrochlorofluorocarbon 22 (HCFC-22), is a refrigerant responsible for absorbing and removing heat from your air conditioner, heat pump, and car air conditioning system. Unfortunately, R22 is a contributor to global warming and the depletion of earth’s ozone layer. To reduce its harmful effects on the environment, R22 is ...The compound gauge at left is used on the low pressure side of the system and shows pressure readings in black, from 0 to 300 psi gauge pressure. [Click any image to see an enlarged, detailed version.] Temperature corresponding to pressure is shown in red on this gauge for R12 and R22, or for newer refrigerants on newer gauges.R422D, also known as Freon MO29, is an R22 retrofit refrigerant comprised of R125 (65.1%), R134a (31.5%), and R600a (3.4%). It has a low boiling point of -44.7°C (-48.5°F) at 1 atmospheric pressure. That’s why is used in low-temp applications such as air conditioners and cars. Here is what you can use this R422D pressure temperature chart for:Refrigerant R22 - Thermodynamic Properties Thermodynamic properties of R22, like vapor volume, enthalpy and entropy at pressures from 30 to 260 psia. Refrigerants Commonly used refrigerants - the methane series, ethane series, propane series, cyclic organic compounds, zeotropic blends, azeotropic blends and organic compounds.Step 12. Compare the super-heat reading to the gauge's psi reading. If the super-heat reading is more than 20 degrees above the P/T chart's reading, then add R-22 until the super-heating reading reaches the optimal range -- between 8- and 18-degree super-heat, depending on the environmental conditions. Many technicians charge the system until ...Fr 22 Refrigerant. 44. Freon™ Refrigerant. For more information on Freon™ refrigerants, visit freon.com. The information set forth herein is furnished free of charge and based on technical data that Chemours believes to be reliable. It is intended for use by persons having technical skill, at their own risk.R-22 Refrigerant Fact & Information Sheet. R-22 refrigerant, or Freon, was and still is one of the most popular refrigerants used in the world. R-22 is an HCFC refrigerant and can harm the Ozone layer. It was originally invented by a partnership with General Motors and the DuPont company all the way back in the 1930’s.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.For thermodynamic performance to be optimized particular attention must be paid to the fluid’s thermal pressure coefficients and thermodynamic properties. A new analytical expression based on the statistical mechanics is derived for R11, R13, R14, R22, R23, R32, R41, and R113 refrigerants, using the intermolecular forces theory. In …R407c is an HFC refrigerant that will replace the R22 refrigerant, as per Montreal Protocol. It is a mixture of R32 (23%), R125 (25%), and R134a (52%) that has a boiling point of -46.84°F. The same as R22, due to useful pressure-temperature properties, R407c is used in air conditioning systems, cars, and refrigeration units. Below, you will ...Hello what pressures should I see with my system, R22 4 Ton Goodman unit installed in '97. Take into account Texas at 100°F outside ambient temp. I think it may be a bit low on refrigerant judging from the indoor air temps only drop about 15° in to out, it used to do better than that. Thanks!Pacific. DuPont Australia P.O. Box 930 North Sydney, NSW 2060 Australia 61-2-99236111 DuPont Far East Inc. 6th Floor Bangunan Samudra No. 1 JLN. Kontraktor U1/14, SEK U1 Hicom-Glenmarie Industrial Park 40150 Shah Alam, Selangor Malaysia Phone 60-3-517-2534 DuPont Korea Inc. 4/5th Floor, Asia Tower #726, Yeoksam-dong, Kangnam-ku … 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 317-887-0729 fax: 317-881 ... R407c is an HFC refrigerant that will replace the R22 refrigerant, as per Montreal Protocol. It is a mixture of R32 (23%), R125 (25%), and R134a (52%) that has a boiling point of -46.84°F. The same as R22, due to useful pressure-temperature properties, R407c is used in air conditioning systems, cars, and refrigeration units. Below, you will ...Diagnose problems for your R-22 appliance with our complete Pressure Chart. Pressure for all temperatures of this refrigerant.R-22a is a hydrocarbon refrigerant blend with primary components including flammable substances such as propane and butane. In some cases, it may also contain small amounts of other hydrocarbons or a pine-scented odorant. This refrigerant is a highly flammable, colorless gas that is heavier than air. “R-22a” has been sold under the names ...What should my normal operating pressures on 410a systems be? R410a suction pressure may be around 120psi, and R410a head pressure may be anywhere from 225psi to 350psi. Many conditions could apply here, …In this HVAC Refrigerant Charging Video I go over what it means to have low R22 Freon or Low R410A Suction Vapor Pressure along with a Low Superheat. I expla...Higher than that. Need suction and liquid line temp to, cant diagnose off just pressures. RIP Ozone. Please call a real pro in you have bo business being on your own if you dont know what superheat and subcooling are.The saturate pressure-temperature curves of R417a, together with R22, R407c, and R410a, are plotted together in Figure 2 that shows the pressure level of R417a to be about 10% less than that of ...When servicing and repairing HVAC systems containing R22 refrigerant, having the proper PT reference charts is critical. R22 PT charts provide technicians with essential data on this refrigerant’s pressure and temperature relationship during different phases and conditions. By matching system pressures taken during diagnosis to the expected temperatures on …On a 70°F day, the pressure of R22 is 111.3 psig. R22 Pressures On A 75-Degree Day? On a 75°F day, the pressure of R22 is 132.2 psig. R22 Pressures On A 80-Degree …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.Most of us have experienced having our blood pressure taken, as it’s standard practice in virtually every medical provider’s office, from an optometrist to a general practitioner. ...For thermodynamic performance to be optimized particular attention must be paid to the fluid’s thermal pressure coefficients and thermodynamic properties. A new analytical expression based on the statistical mechanics is derived for R11, R13, R14, R22, R23, R32, R41, and R113 refrigerants, using the intermolecular forces theory. In … This script determines the gas pressure based on temperature of R22 refrigerant. R22 or HCFC-22 is a single component HCFC refrigerant with low ozone depletion potential. It has long been used in a variety of air conditioning and refrigeration applications in a variety of markets, including appliance, construction, food processing, and ... Suction Pressure/EVAP DTD Rule of Thumb Another common old-school rule of thumb is that suction pressure should be close to the outdoor temperature in an R22 system. However, this rule of thumb (obviously) does not work on an R-410A system. A more applicable guideline is 20°-25° suction saturation below outdoor ambient.When you’re diagnosed with high blood pressure, your doctor will likely help you adopt a new health regimen to improve your diet and start exercising. If your blood pressure is ver...Up to 10% lower capacity. Lubricant Recommendation: Compatible with mineral and alkylbenzene oil and if oil return becomes a concern, addition of polyolester lubricant in 5% increments could help resolve the issue. Retrofitting to: R-422B for R-22 Air Conditioning page 95. R-422B for R-22 Refrigeration page 95.R410A Systems Run at a Different Pressure. Compared to an R22 system, an R410A air conditioner runs at a higher pressure. These systems operate at about 130 pounds per square inch (psi). In AC mode, an R22 evaporator coil will run at about 70 psi. Therefore, newer systems run at nearly double the pressure, assuming they’re …R22 refrigerant, (also known as R-22 Freon and HCFC-22 Freon) is a chemical used in both air conditioners and heat pumps to cool your home. On January 1, 2020, the U.S. …In this HVAC Training Video, I show you How to Read the Refrigerant P/T Chart for the Pressure-Temperature Relationship. This is used to determine the Temper...However, they have added load capacity above certain pressures. Light and Standard Load tires have a maximum capacity pressure rating of 35-36 psi and Extra load tires have a maximum capacity pressure rating of 41-42 psi. The maximum allowed pressure listed on a tire's sidewall can be higher however.Fr 22 Refrigerant. 44. Freon™ Refrigerant. For more information on Freon™ refrigerants, visit freon.com. The information set forth herein is furnished free of charge and based on technical data that Chemours believes to be reliable. It is intended for use by persons having technical skill, at their own risk.June 9, 2022 by Brian Cole. R422B is a hydrofluorocarbon refrigerant that comprises of three components. They include two hydrofluorocarbons, R-125, R-134A, and one hydrocarbon, R600A. The refrigerant comes with a variety of features, benefits, and applications. One of the most notable functions is that 422B is a drop-in replacement for R22.BP. BP. BP. -114.6°F. -115.6°F. -126.1°F. Before adding refrigerant charge, evacuate to proper vacuum level to remove non-condensable gases and to evaporate and remove moisture in the system. This chart shows the vacuum level and the temperature at which water will vaporize.Condensing Unit. 1-1⁄2 HP R-22 condensing unit / evaporator assembly. Horizontal line-set sloped down from evaporator compressor. Optimized refrigerant charge / adjusted TXV superheat setting. Ran R-422D, R-427A, and R-438A with MO & POE (camera) 100°F Ambient / 0, 25, & 50°F Box Temps – “Dry Coil” tests.R407c is an HFC refrigerant that will replace the R22 refrigerant, as per Montreal Protocol. It is a mixture of R32 (23%), R125 (25%), and R134a (52%) that has a boiling point of -46.84°F. The same as R22, due to useful pressure-temperature properties, R407c is used in air conditioning systems, cars, and refrigeration units. Below, you will ...The R410a systems also use synthetic oil for lubrication instead of mineral oil as in R22 systems. The synthetic oil is more soluble and more effective for the whole system. Therefore, R410a performs better than R22 and has improved machine performance. R410a Vs. … This script determines the gas pressure based on temperature of R22 refrigerant. R22 or HCFC-22 is a single component HCFC refrigerant with low ozone depletion potential. It has long been used in a variety of air conditioning and refrigeration applications in a variety of markets, including appliance, construction, food processing, and ... Make your job easier with our handy refrigerant pressure temperature HVAC app with R-22 included.R-22 Replacements Pressure-Temperature Guide Key: Green (in of Hg) = Vacuum Black (psig) = Saturated Vapor (calculate Superheat) Bold (psig) = Saturated Liquid (calculate Subcooling)Refrigerant Pressure-Temperature Home Back. Choose Refrigerant: R-410A R-22 °C °F: Psig-40-39-38-37 ...Pressure Temperature Charts. °F. °C. R-22. -40. -40.0. 0.5. -35. -37.2.
30 lb. R-22. Cylinder. 50 lb. 125 lb. 1000 lb. 1750 lb. 7th Edition 2020 Refrigerant Reference Guide 17. National Refrigerants, Inc. Product Data Summary and Thermodynamic Tables. . Food lion sales flyer
R-22 Refrigerant Fact & Information Sheet. R-22 refrigerant, or Freon, was and still is one of the most popular refrigerants used in the world. R-22 is an HCFC refrigerant and can harm the Ozone layer. It was originally invented by a partnership with General Motors and the DuPont company all the way back in the 1930’s.One of the most common problems that happens when water pressure is too high is leaks in the plumbing. High water pressure can also cause faucets to make too much noise or cause sp...Most rookies set it for the minimum, like 35 psig differential. Should be 100 psig differential. I always set R-22 to cut in at 275, and cut out at 175. It's not adjustable, the switch opens at 170 psi and once the pressure increases past that, it closes. Reply. 11-06-2021, 04:17 PM #18.Home HVAC Pressure enthalpy chart R22 Pressure Enthalpy Chart. HVAC; Pressure enthalpy chart; R22 Pressure Enthalpy Chart. By. Paul Evans - Apr 7, 2019. 2. Facebook. Twitter. Pinterest. WhatsApp. R22 Pressure enthalpy chart. Scroll down to find download buttons for pressure enthalpy charts in either Metric or Imperial …pressure replacement for R-22 in positive displacement, direct expansion (DX) air conditioners and heat pumps. This refrigerant is also suitable for use in many medium-temperature refrigeration systems that formerly used R-22. Freon™ 407C is the registered trademark for a blend of HFC-32/HFC-125/HFC-134a with a correspondingNov 13, 2020 · R22 pressure at 85 degrees shows a vapor pressure of around 170 psi at the sea level. On the low-side R22 pressure at 85 degrees displays 60 psi, whereas on the high-side R22 pressure at 85 degrees shows 250 psi. For servicing of the compressors, the right way is to follow the service manual. 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 317-887-0729 fax: 317-881 ... Argument #1: Pressure. Tube-side materials in R-410A coils need to be thicker due to the higher operating pressures associated with R-410A relative to R-22. We’re not arguing that there’s not a difference in operating pressure between the two. There is – roughly 130 PSI for R-410A evaporators compared to about 70 for R-22. R22 REFRIGERANT PRESSURE / TEMPERATURE CHARTS [Web Article] Troubleshooting, repairing, + R22 chart downloads. REFRIGERANT PRESSURE / TEMPERATURE CHARTS for R-22, R-410A, R-134A, R-404A REFRIGERANTS [PDF] Advantage Engineering, Inc. 525 East Stop 18 Road Greenwood, IN 46142USA, Tel: 317-887-0729 Web site: www.AdvantageEngineering.com Email ... R22, also known as HCFC-22, is a colorless gaseous hydrochlorofluorocarbon refrigerant commonly used in HVAC systems for residential air conditioning and refrigeration. Introduced in the 1970s, R22 became widely used as a refrigerant due to its stability, safety, and energy efficiency properties. However, R22’s chlorine content also makes it ...For light trucks at 65 to 80 psi, add 5 psi. Then for Class A RVs at 100 to 110, you should add 10 psi from the recommended minimum. There are a lot of details that need to be considered as well as the age …R-22 Refrigerant Fact & Information Sheet. R-22 refrigerant, or Freon, was and still is one of the most popular refrigerants used in the world. R-22 is an HCFC refrigerant and can harm the Ozone layer. It was originally invented by a partnership with General Motors and the DuPont company all the way back in the 1930’s.Nov 13, 2020 · R22 pressure at 85 degrees shows a vapor pressure of around 170 psi at the sea level. On the low-side R22 pressure at 85 degrees displays 60 psi, whereas on the high-side R22 pressure at 85 degrees shows 250 psi. For servicing of the compressors, the right way is to follow the service manual. 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. The low pressure side is the larger of the 2 pipes coming out of or going into the outside compressor unit. The high pressure side is the small diameter line. The low pressure side carries R22 gas while the high pressure line carries R22 in a liquid state. R22 changes from a liquid to a gas in the evaporator coils of the air handler. Temperature and pressure chart for refrigerants R22, R410A, R12, R134A, R401A, R409A, R502, R404A, R507A, R408A and R402A. Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!R22 Refrigerant - Properties - Imperial Units; Temperature (o F) Pressure (psia) Liquid Density (lb/ft 3) Vapor Volume (ft 3 /lb) Enthalpy (Btu/lb) Entropy (Btu/lb o F) Liquid Vapor Liquid Vapor-130.00: 0.696: 96.46: 58.544-23.150: 89.864-0.06198: 0.28082-120.00: 1.080: 95.53: 38.833-20.594: 91.040-0.05435: 0.27430-110.00: 1.626: 94.60: 26.494 ....