R22 pressure on 90 degree day

When I got the call back for high pressure I decided to jump out the pressure limit switch and observe the startup pressures with my gauges. I was amazed to observe that this unit starts on the high side at about 550 psi (which seems extraordinarily high) and then drops down to a normal operating pressure within about 15 seconds.

Step #1 - If there is any frost on the outside unit, get it completely defrosted first. Step #2 - Check all the obvious things first, filter, coils, blower wheel, etc. If the unit isn't clean, it will be really hard to check. When charging in heat mode, read manufacturer specifications first.The term gauge signifies that the pressure has been read from a gauge that actually measures the difference between the pressure of the fluid or gas and the pressure of the atmosphere. Psig is equal to psis at sea level (14.7 psi). Psig is equal to psia – 14.7 at sea level. Psia is absolute pressure, which means it is gauge pressure + 14.7 psi.HVAC Technician: HVAC Guru. suction pressure. Star Rating Link DIRECT LINK. Ask Your Own HVAC Question. Also a R 404a freezer and cooler pressures The normal pressures for an r404a cooler and freezer. HVAC Guru. 24,469 Satisfied Customers. 20yrs in the HVAC industry with certificates and degrees.27.4 90.8 207.7. 2.7. 28.3 92.6 210.8. 4.8. 25.7 87.4 201.8. 4.1. 26.5 89.1 204.7. Temp (°F) Pressure Temp (psig) (°C) 5.4. 24.9 85.7 198.8 Saturation Pressure-Temperature Data for R22 (psig)* Temp (°F) Pressure Temp (°C) Temp (°F) Pressure Temp (°C) Temp (°F) Pressure Temp (°C) Created Date:As a ballpark & it depends on a lot of factors, suction should be in the range of 60 to 80 & head should be in the range of 150 to 300. I've got a 2.5 ton heatpump, @ 90 degrees in heat mode the suction should be @ 74 and the head should be @ 255. Reply. 05-28-2005, 07:33 PM #6. david2641.

Pressure drop in a pipe due to fittings such as elbows, tees, valves, expanders and reducers based on 3K and 2K method. Units; Contact; Fluid Flow Pipe Fitting Losses ... 90° Elbow K Threaded, r/D=1: 0.27: Threaded, Long Radius, r/D=1.5: 0.27: Flanged, Welded, Bend, r/D=1: 0.27: Flanged, Welded, Bend, r/D=2 ...R-134a TEMPERATURE PRESSURE CHART (Tabla de Temperaturas y Lecturas) Ambient Temperature °F / °C (Temperatura Ambiental) Low-Pressure Gauge (Puerto de Servicio del Lado ... 90°F (32°C) 45-55 psi / 310-379 kPa: 250-270 psi / 1724-1862 kPa: 95°F (35°C) 50-55 psi / 345-379 kPa: 275-300 psi / 1896-2068 kPa: 100°F (38°C)What should the suction pressure be on a 85 degree day on a R22 split unit? Updated: 9/18/2023. Seannyspecial ∙ . Lvl 1. ∙ 10y ago. Study now. See answer (1) Best Answer. Copy. 60psi. Wiki User.Jun 14, 2013 · With clean coils both inside & outside, an inside temperature of 75° with. 50% humidity, I would expect a low side of roughly 70 PSI, and an hi-side pressure of roughly 20-30° above outside ambient temperature. (depending on efficiency of unit) which would correspond to 243-278 PSI.Posted: 7/6/2012 2:35:12 PM EDT. My HVAC contractor recently saw head pressure of 350-400, normal to low suction. He diagnosed it as a restriction in the condensor coil, replaced condensing unit. The "changeout team" that installed the condenser saw exactly the same situation on the new unit. They left and now waiting for a re-evaluation from ...Differentiate between R454B and other refrigerants, like R22, R410a, and so on. Use it to calculate the required R454B superheat and total superheat. ... From the PT chart, we can read that the pressure of liquid R454B on a 90-degree day is 262.5 psig. Similarly, we can see that the vapor pressure of R454B on a 90-degree is 251.9 psig.Degree Days Calculator. This online calculator pulls weather station data--including heating and cooling degree days (HDD and CDD)--from more than 900 weather stations around the United States and Canada. Use the weather normalization data here to adjust your building's or industrial plant's energy usage data for changes in weather.what should be the normal reading on hi and low side on a 95 degree day. ... I would expect a low side of roughly 70 PSI, and an hi-side pressure of roughly 20-30 above outside ambient temperature (depending on efficiency of unit) which would correspond to 243-278 PSI. ... You will see that low a liquid line reading on heat pumps which usually ...

At 318.5 PSI, the saturated temperature is 100°F. If you measure 118 PSI on the low-pressure side of the system, then you know that the saturated temperature of the refrigerant flowing through the middle of the evaporator coil is at 40°F. This is a useful number when combined with the temperature of the tubing near the pressure port.The term gauge signifies that the pressure has been read from a gauge that actually measures the difference between the pressure of the fluid or gas and the pressure of the atmosphere. Psig is equal to psis at sea level (14.7 psi). Psig is equal to psia - 14.7 at sea level. Psia is absolute pressure, which means it is gauge pressure + 14.7 psi.Based on NOAA records, the year 1955 holds the record for the most 90 °F days in Madison history. There were 40 days with a high temperature of at least 90 degrees that year. How many so far this year (2024)? It has not reached 90 degrees Fahrenheit in Madison so far in 2024. As of May 18, the highest temperature this year is 87 °F.The operating pressures of R22 and 410A are different, which affects how air conditioning systems are designed and function. R22 Pressure: R22 operates at lower pressures compared to 410A. This means systems designed for R22 cannot handle the higher pressure of 410A without modifications.

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This table represents a pressure temperature chart for R134A. R-134A is a refrigerant frequently used in automobile air conditioning. Additionally, for larger chilled water systems in commercial and industrial chilled water systems. Furthermore, R-134A is an HFC or hydrofluorocarbon refrigerant and, as noted, is used for automotive air ...It takes 75 to 120 minutes to cool a home 5 degrees and 150 to 240 minutes to cool a home 10 degrees. Or: 1 hour 15 minutes to 2 hours = 5 degrees cooler. 2 hours 30 minutes to 4 hours = 10 degrees cooler. There's a more detailed chart below.Base Temperature (Tbase) for our analysis: 18°C. Using the Degree Day formula: DD = (25°C + 15°C) / 2 - 18°C DD = (40°C / 2) - 18°C DD = 20°C - 18°C DD = 2°C. In this example, the Degree Days for the given day and base temperature are 2°C. This indicates that the temperature on that day was 2 degrees above our specified base ...New branded medicines are coming to market with ever-higher price tags as soon as the first day. Amgen Inc's (NASDAQ: AMGN) lun... New branded medicines are comi...

Temp for return side: 68F. When I figure super heat or sub cool on these saturation temps and line temps my super cool/sub cool show I guess a major overcharge. The outside low side line is just sweating a little not much and not icing up. 66.2 – 42 = 24 superheat. 104 – 83 = 21 sub cool.Gauge pressure T T T-4 (8") -.28 -27.6 .75 737 73,746 73.7 10.7 -53.3 -47.4 225.8-3 (6") -.21 -20.7 .82 806 80,641 80.6 11.7 -50.0 -45.6 227.6-2 (4") -.14 -13.8 .89 875 87,536 87.5 12.7 -47.0 -43.9 229.3 ... 27 1.90 186.2 2.93 2,875 287,484 287.5 41.7 3.5 -15.8 257.3Realistically, you are likely to measure indoor WB temperature between 64°F and 70°F on a 100-degree day. That means that the target superheat on a 100-day is between 6.0°F and 15.0°F . In the same way, you can use this target superheat chart to determine target superheat for 55°F to 128°F outdoor temperatures and 50°F to 76°F indoor WB ...May 28, 2005 · As a ballpark & it depends on a lot of factors, suction should be in the range of 60 to 80 & head should be in the range of 150 to 300. I've got a 2.5 ton heatpump, @ 90 degrees in heat mode the suction should be @ 74 and the head should be @ 255. Reply. 05-28-2005, 07:33 PM #6. david2641.Based on the 1991-2020 climate normals, the Twin Cities airport averages about 13 days per year with 90-degree F high temperatures. In 1988, the station observed a record 44 such days. There have been three years with no 90 F days in the Twin Cities: 1902, 1915, and 1993. Following are the top years for 90-degree F high temperatures in the Twin ...R22 Suction Pressure At 80 Degrees . Psi is the common measurement for pressure used in terms of pounds per square inch. No longer in active...150 head pressure 60 suction pressure. R22 Should cool right. 78 degrees suction line 84 degrees head line. New filters. Clean coils. 70 degrees air temp at the registers. What the heck? Optional Info … read moreHigh Performance HVAC Refrigerant Pressure Temperature Chart. PT Chart for Common Refrigerants; Refrigerant Pressure Temperature Chart – PT Chart for R-410A, R-134A, and R-22. Metering Devices – Subcooling and Superheat – Refrigerant Oil

The operating pressures of R22 and 410A are different, which affects how air conditioning systems are designed and function. R22 Pressure: R22 operates at lower pressures compared to 410A. This means systems designed for R22 cannot handle the higher pressure of 410A without modifications.

And yea I checked the recovery tank, my pressure was low for the ambient temp by about 11 degrees, I figured it should be higher than expected if air was present, not sure why it was lower. unless I'm mistaken, r22 when exposed to atmosphere should be something like minus 41 degrees.Based on NOAA records, the year 1955 holds the record for the most 90 °F days in Madison history. There were 40 days with a high temperature of at least 90 degrees that year. How many so far this year (2024)? It has not reached 90 degrees Fahrenheit in Madison so far in 2024. As of May 18, the highest temperature this year is 87 °F.Transcribed image text: 10. If the condenser saturation pressure for an R-22 system is 226.4 psig and the condenser outlet temperature is 90 degrees, what is the condenser subcooling? a. 110 degrees b. 90 degrees c. 20 degrees d. 10 degrees.Splits, Swings, And Loads. In air-cooled condensers, the temperature difference between the ambient and the condensing temperature is referred to as the condenser split. For example, if the condensing temperature is 110 degrees F and the ambient is 80 degrees, the condenser split would be 30 degrees. (The condensing temperature in any system is ...Absolute pressure KG/CM2 KPA-G Gauge pressure T T T PSIG KG/CM2 Mbar Pascals PSIA Dew Bbl Farenheit Celsius Kelvin Dew Bbl Dew Bbl Refrigerant R-22 Pressure / Temperature chart Absolute pressure KPA Gauge pressure KG/CM2 KPA-G T T T HVACSuite.comJake Clark, certified flight instructor, discusses the oil pressure gauge on the R22.I came across a walk in cooler yesterday that had a R-22 system in it. It was out of refrigerant. I recharged it but I wasnt sure what the normal operating pressures are for it. It is a meat storage walk in. A 67 suction pressure seem kind of high (I stopped at about 40 PSIG because I was getting a cool suction line). Does anyone have any information …R-22 Low-Side pressure when compressor is OFF = R22, at 70 deg F, R22 vapor pressure at sea level will be 121.5 psi. or 176.5 psi at 90°F ambient temperature, system OFF, Note that when a refrigeration system has been off long enough to reach its normal, idle state, both high-side and low-side refrigerant pressures will be equal and will ...

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Low side should usually be ~70-75 psi at that indoor temp and high side should be 170+psi (depending on how dirty your coil is and seer rating). And while you can't tell exactly how much refrigerant you're down without exact numbers for your system (metering device, indoor wetbulb, dirty coil) you can usually tell if you're low. You have 45º ...Study with Quizlet and memorize flashcards containing terms like The approximate box temperature of a medium temperature walk- in refrigerator is:, Walk-ins usually have lower box temperatures than reach-ins because:, A walk-in refrigerator and an A/C system are both R22 and the ambient air at their condensers is 95°. The A/C unit's condensing temperatures will be: and more.what kind of suction pressures are you guys getting with mo99 on resi splits (1.5-5 ton)? i usually try to go by the chart on the unit but the charts are for r22. will mo99 run at the same pressure as r22? i mean its the same unit. when i charge replacement dry units with mo99, it seems like the suction pressure never goes above 55psi. maybe 60 if its really hot out.clean up, operate system for 10 hr. Monitor pressure drop across drier. If pressure drop exceeds 3 psig, replace suction-line and liquid-line filter driers. Be sure to purge system with dry nitrogen and evacuate when replacing filter driers. Continue to monitor pressure drop across suction-line filter drier. After 10R22 changes from a liquid to a gas in the evaporator coils of the air handler. Normal temperatures: With compressor running and as reference, on a 90 degree F. day: - Goodman runs 45degrees F on low pressure side and 115degrees F on high pressure side. - 2 ton York runs 40degrees F on low pressure side and 110degrees F on high pressure side.145 °F. 571.7 psig. 150 °F. 607.6 psig. 155 °F. 645.2 psig. 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 examples of how you can use this chart:Temp. Temp. Temp. Temp. Temp. Temp. Temp. Temp. ( F) Liquid Vapor ( C) ( F) Liquid Vapor ( C) ( F) Liquid Vapor ( C) ( F) Liquid Vapor ( C)-49 1.9 10.4-45.0 1 30.4 20.2 -17.2 51 99.8 80.5 10.6 101 228.8 199.3 38.3-48 1.2 9.8-44.4 2 31.4 21.0 -16.7 52 101.7 82.2 11.1 102 232.2 202.4 38.9-47 0.4 9.2-43.9 3 32.3 21.8 -16.1 53 103.7 84.0 11.7 103 235.6 205.6 39.4Step #1 - If there is any frost on the outside unit, get it completely defrosted first. Step #2 - Check all the obvious things first, filter, coils, blower wheel, etc. If the unit isn't clean, it will be really hard to check. When charging in heat mode, read manufacturer specifications first.Pressure-Temp Chart-40-35-30-25-20-15-10-5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 130 135 140 145 150 0.5 2.6 4.9 7.4 10.1 13.2 16.5 20.1 24.0 28.2 32.8 37.7 43.0 48.8 54.9 61.5 68.5 76.0 84.0 92.6 102 111 121 132 144 156 168 182 196 211 226 243 260 278 297 317 337 359 382 Physical Properties of ... ….

Apr 2, 2024 · What is an AC PT chart? The conventional PT chart defines the saturated refrigerant pressure, in Psig with a column of pressure on the left side. Single refrigerant components and azeotropes boil and condense at a single temperature for a given pressure. How much R-22 is in a 5 ton unit?Diagnose problems for your R-22 appliance with our complete Pressure Chart. Pressure for all temperatures of this refrigerant.If you see a liquid line pressure that is more than 30 degrees saturation above outdoor temperature (like a 440 PSI liquid pressure on an R410a system on a 90-degree day), do not proceed until you have further addressed the possible causes of high head, regardless of what the superheat or subcool might be reading.With clean coils both inside & outside, an inside temperature of 75° with. 50% humidity, I would expect a low side of roughly 70 PSI, and an hi-side pressure of roughly 20-30° above outside ambient temperature. (depending on efficiency of unit) which would correspond to 243-278 PSI.A: Thank you for your inquiry on the Everbilt 1/2 in. Copper Pressure 90-Degree Cup x Cup Elbow Fitting. Cup is the term used in the Product Name and the application, in this case "sweat", is what is used in the image with the line art. If you have additional questions, you can reach a NIBCO Technical Services Advisor, M-F 8am - 5pm EST, by phone at (888) 446-4226.What is the working pressure of R407C compared to R22? ... For R22, the discharge side is 240psi and suction side is 70 psi. Is it similar for R407C? ... 01-11-2010, 07:56 PM #2. Brian_UK. View Profile View Forum Posts View Blog Entries View Articles Moderator ...PSI refers to the minimum amount of air pressure needed to support your vehicle at its maximum load. Tire pressure can also change drastically in winter temperatures. For every 10 degrees F change in ambient temperature, tire pressure will change by approximately 1 PSI. That's why you always check pressure when the tires are cold, meaning ...The things you do need to be aware of are that one, the sun can heat your tires between 10 and 50 degrees F. That means you will want to check your tire pressure before the sun heats them up. When sitting in the sun or driving, the tire pressure will increase 2% for every 10 degrees F the tire temperature goes up. R22 pressure on 90 degree day, 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 300-350 psi on the low side and 575-625 psi on the high side. ... (1.7 to 15.6°C) for the evaporator coil temperature and 90 to 135 degrees Fahrenheit (32.2 to 57.2°C) for the condenser coil ..., In the case of a blend, you Simply read the saturated temperature next to the pressure in the vapor (dew point) column of the chart. When checking the subcool condition the technician will measure the temperature of the liquid line, and the pressure at that point and subtract the measured temperature from the saturated temperature at the end of ..., 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 ..., Most of you know R-32 as a necessary component in the widely popular HFC blend known as R-410A Puron. R-32 along with R-125 gets you that R-410A that is found in nearly every air conditioner today. However, in recent years there has been a push to slowly phase down R-410A. That is because of 410A's very high Global Warming Potential, or GWP., We would like to show you a description here but the site won't allow us., Buy Air Conditioner Refrigerant Low and High Pressure Gauge 70mm/2.7inch for R410A R134A R22 PSI PA AC Pressure Gauges ... This item can be returned in its original condition for a full refund or replacement within 30 days of receipt. ... Blue Dial, 1/8" NPT Lower Mount, 30inHg-0-250psi, 250-500psi Retarded Range, R-404A, R-22, R-410A, Degree F ..., Refrigerant Pressure Temp. Select Refrigerant:, Barg is the gauge read pressure. The term gauge signifies that the pressure has been read from a gauge that actually measures the difference between the pressure of the fluid or gas and the pressure of the atmosphere. Psig is equal to psis at sea level (14.7 psi). Psig (inches of mercury) is equal to psia - 14.7 at sea level., If you’re a fan of reality television, chances are you’ve heard of TLC’s hit show, 90 Day Fiancé. This popular series follows the lives of couples who have applied for or received ..., Pressure enthalpy chart r22 pdf Thermodynamic Properties of Refrigerant - R22 - Properties of R22 - vapor volume, enthalpy and entropy at pressures from 30 to 260 psia Tag Search en: refrigerant temperature pressure chart R22, R410A, R12, R134A, R401A, R409A, R502, R404A, R507A, R408A, R402A 3 System Considerations for Refrigerant Blends with Temperature Glide […], COMPRESSOR WITH LEAKY VALVES MEASURED VALUES Compressor discharge temp.: 225°F Condenser outlet temp.: 75° Evaporator outlet temp.: 25° Compressor inlet temp.: 55V Ambient temp.: 75° Box temp.: 25° Compressor volts: 230 Compressor amps: low Lowside (evaporating pressure (psig): 11.6 (10°) Highside (condensing) pressure (psig): 95 (85°) CALCULATED VALUES °F, 65 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 ..., A. 95 degrees f outside, 80 degrees inside, 50% humidity B. 95 degrees outside, 70 degrees inside, 40% humidity C. 90 degrees outside, 80 degrees inside, 30% humidity D. 100 degrees outside, 75 degrees inside, ... The discharge pressure will be lower than normal D. The suction and discharge pressure will both be higher than normal Ans. D., Based on NOAA records, the year 1955 holds the record for the most 90 °F days in Madison history. There were 40 days with a high temperature of at least 90 degrees that year. How many so far this year (2024)? It has not reached 90 degrees Fahrenheit in Madison so far in 2024. As of May 18, the highest temperature this year is 87 °F., These are saturation temperatures for a given pressure. On a 85-90 degree day, the suction pressure should be about 45-50 psi. Don't know what pressure is, I don't have a p.t. chart. Your discharge air temp should be about 40-45 degrees F. at the vents. If pressure is too high, you have overcharged. Check the receiver tank for refrigerant level., What are the ordinary static pressures that you all are used to for a 410A unit on a 65 degree day? I'm working on a York condenser that went out on Low Pressure weeks ago. I topped her off with a few pounds of 410A and now it trips on High Pressure, but I was confident in my original charge because of the pressures/temps I observed at the time., The method of air conditioner charging you use will depend on the type of refrigerant in your system. R-22 is normally added in the vapor state (with the container right side up) to the suction line of the system. Blended refrigerants, such as R-410a, are normally added in the liquid state by turning the container upside down., 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 Potential (GWP) refrigerants with a GWP of over 750, will be banned together with the systems using that gas. R410A has a GWP > 2,000., From the PT chart, we can read that the pressure of liquid R454B on a 90-degree day is 262.5 psig. Similarly, we can see that the vapor pressure of R454B on a 90-degree is 251.9 psig. Example 7: What Are R454B Pressures On A 95-Degree Day? From the PT chart, we can read that the pressure of liquid R454B on a 95-degree day is 282.5 psig., 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., While capacities of both systems were approximately equal at the 35.0 °C (95.0 °F) rating point, at the 54.4 °C (130.0 °F) outdoor temperature the R410A capacity was 9 % below that of R22. For the same test points, the R410A COP (EER) was 4 % and 15 % lower than the R22 COP (EER), respectively., AZ-20 (R-410A) pressure is about 60% (1.6 times) greater than R-22. Only use servicing equipment and components designed for AZ-20 (R-410A). - Recovery cylinder service pressure rating 400 psig, e.g. DOT 4BA400 and DOT BW400. - Manifold sets must be 800 psig high-side and 250 psig low-side with 550 psig low-side retard., Determine the amount of subcooling by subtracting the liquid line temperature from the saturation temperature of the refrigerant. According to industry standards, superheat should be 12-15 degrees in ambient air temperature below 85°F and 8-12 degrees in warmer air. Subcooling should be 5-18 degrees, with higher values when the equipment has a ..., pressure side, etc.). It is also recommended to have spare seals for other components available during restart of the system. The same type of seal can be used; it should just be a new one that has not previously been in R-22 service. A rigorous leak check regime pre- and post-retrofit will minimize any refrigerant losses. Obviously, any seals ..., Measure this pressure and convert the pressure to saturated temperature (sat temp) using a P/T chart, the gauge face, an app, or a digital manifold. (We have quick charging and troubleshooting cards available that also include a P/T chart.) On the gauge face in the picture below, the pressure measured is 318 PSIG., May 1-16 is when a swath from the coastal Southeast to the Gulf Coast can expect the first 90-degree day, including Raleigh, North Carolina, and Mobile, Alabama. Parts of the southern Plains and a ..., Outside was around 90 degrees ... 150 head pressure 60 suction pressure. R22 Should cool right. 78 degrees suction line 84 degrees head line. ... Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, ..., (The 2 degrees is because 15°C is 2 degrees below the base temperature of 17°C, and the 0.5 days are because 00:00 to 12:00 is half a day. We calculate the heating degree days for each period in the day, and then add them together to get the total for that day: 1.5.), R22 HCFC 86.5 Temp °F R22 psig-40 0.5-35 2.6-30 4.9-41.5 723.7 205.1 32.7 75.3 0.294 ... 90 95 100 105 110only. 115 120 125 130 135 140 145 150 382 Version 3.31122 WARNING: Cancer and Reproductive Harm ... Technical Information Sheet Pressure- Temp Chart Physical Properties of Refrigerants R22 Environmental Classification Molecular Weight ..., R22 Pressures On A 80-Degree Day? On an 80°F day, the pressure of R22 is 143.6 psig. R22 Pressures On A 85-Degree Day? On an 85°F day, the pressure of R22 is 155.7 psig. R22 Pressures On A 90-Degree Day? On a 90°F day, the pressure of R22 is 168.4 psig. R22 Pressures On A 95-Degree Day? On a … See more, Head on 410 at 100° will be in the 375 - 400 range depending on surrounding conditions, sun, heat load inside, dirt on the coil. high suction pressure could be from a high load, bad compressor, bad-wrong-nonexistant metering device. There are a multitude of things that can cause pressures to be high or low depending on the situation., Turn the thermostat to cool and set the target temperature at least 10 degrees lower than the indoor temperature. Let the system operate for at least 10 minutes to let pressures equalize. Record the suction line pressure. Use a temperature measuring device to measure the temperature of the suction line., R410A PRESSURE-TEMPERATURE CHART Saturation Pressure-Temperature Data for R410A (psig)* ECLPC-1 Rev 1 - 02/22. Created Date: 2/25/2022 1:24:53 PM ...