High subcool - The liquid line temperature is 88 ° F. Subtracting the two numbers gives 36 ° F. High superheat and high subcooling indicates a problem with the metering device. Keep in mind that subcooling won't increase on systems with a liquid line receiver, as extra liquid will fill the receiver instead of backing up in the condenser. Receivers are rare ...

 
Normal Subcooling High Superheat. Find out what it means when your system has normal subcooling but high superheat, and learn how to diagnose and resolve this issue. Normal Subcooling Low Superheat. Learn about the implications of normal subcooling with low superheat and discover the potential causes and solutions for this unique situation.. French kiss animated gif

High superheat high subcooling. Usually caused by a blockage in the line, coils, or in the orifice. High subcooling normal superheat. Might be caused by a flooded condenser. …Jul 16, 2020 · High Suction - Low Superheat and No Subcooling. 2.5 ton lennox condenser. 3 ton drive on blower. 3.5 ton evap. 50 evap. 45 SLT. 100 condensing temp. 105 LLT. Changed 3.5 ton txv to 2.5 but WTF. Example of how to fix a 3 ton 16 SEER AC unit running on R-22 freon that has high superheat and low subcooling: Add R-22 refrigerant (but only after you fix the leak, more below). High Superheat = Amount of refrigerant in the evaporator coil is too low. Low Subcooling = Amount of refrigerant in the condenser coil is too low. 1) Overcharging the system will cause high subcool. When there is excess refrigerant in the system, condensation and evaporation do not take place the way they …High side pressure and subcool become the determining factor in charging because of the TXVs ability to change flow rate. Superheat still can be measured though to determine if a TXV is operating properly. Some TXVs can be manually adjusted to change spring pressure and flow rate.May 21, 2015 ... Do not try this at home! HVAC training is required!Subcooling is when the temperature of the refrigerant liquid is below the saturation temperature. This can happen at the beginning of the refrigeration cycle, when the system is first turned on, or if there’s a problem with the system. Subcooling is the difference between the saturation temperature and the actual liquid refrigerant temperature. Subcooled Boiling. In subcooled boiling, the temperature of most of the liquid is below the saturation temperature and bubbles formed at the surface may condense in the liquid. This condensation (collapsing) produces a sound of frequency ~ 100Hz – 1 KHz. This is why an electric kettle makes the most noise before the water comes to saturated ...Jul 13, 2016 · 42671 posts · Joined 2008. #5 · Jul 14, 2016. R410A at 60 PSIG is a sat temp of 9°F, so your original SH would have been 67°. Most compressors don't fair well with vapor return temps above 67°F for long periods of time. Its easier to determine if its low on charge or not when you run it in second stage. 1) Overcharging the system will cause high subcool. When there is excess refrigerant in the system, condensation and evaporation do not take place the way they …Subcooling should be 5-18 degrees, at the high end of that spectrum when the equipment has a TXV. Always go by the manufacturer’s specifications. Using superheat and subcooling data in troubleshooting: Low superheat: Too much refrigerant in the evaporator. It’s likely overcharged. High superheat: Too little refrigerant in the …13. Install the new subcool high pressure P/T sensor (black connector) into the Supermanifold (Figure 8): a. Install and hand-tighten the subcool high pressure P/T sensor until the sensor O-ring just makes contact with the Supermanifold (Figure 9). NOTE: Use an inspection mirror to visualize this and subsequent steps.Excessive or high superheat is an indication of insufficient refrigerant in the evaporator coil for the heat load present. This could mean that not enough refrigerant is entering the coil or this could also indicate an excessive amount of heat load on the evaporator coil.High Superheat and High Subcooling. This combination is a perfect example of why you can’t use manifold pressures alone to troubleshoot a refrigeration problem. They will fool you every time and result in a misdiagnosis. A system running high superheat and subcooling has a high-side restriction somewhere. The issue could be a liquid line ...The condensing (high-side) pressure will also have a corresponding saturation temperature on the gauge. Write this temperature down along with the liquid line temperature reading from your digital thermometer. It should be lower than the temperature reading on your high-side gauge. Subtract the two temperatures to calculate subcooling. TGA Subcool Seeds, a leader in the cannabis industry, revolutionized the seed business with their "open source breeding" approach. Originating in 2001 by pioneers frustrated with industry falsehoods, this brand has crafted 37 distinctive marijuana strains over a decade. With strains designed to alleviate various ailments and a dedication to ...Feb 2, 2020 · Staff. Feb 2, 2020. #1. After several years of battling a rare condition, well-known grower/breeder Subcool has died. He suffered from Alpha 1-antitrypsin deficiency (AAT) and COPD. Little is known about Subcool's personal life before he became a hot cannabis cultivator, famous for breeding such strains as Vortex and Jack the Ripper. Aug 31, 2016 ... This is highly dependent on the condenser coil design and the efficiency of the system since higher efficiency systems generally have well ...Jul 8, 2022 · How to Check Subcooling. Attach the thermometer to the liquid line. This time, near the condenser. Then take the head pressure in Psi and convert it to the temperature on the pressure/temperature chart. Assuming you are dealing with a R22 system, let’s say the head pressure is 260Psi. This will convert to 120F. A Complete Guide to Correcting Low Superheat High Subcooling. By Scott Maupin October 1, 2023. Refrigeration systems are the unsung heroes of modern life, quietly working behind the scenes to keep our food fresh, our homes comfortable, and countless industrial processes running smoothly.of the high side in °F. (Inner most # on high side gauge). C. SUBCOOLING = B - A. D. The ideal subcooling range is 8-15 °F. If your subcool is low you simply ...High subcool, and high superheat? One of my friends got into the trade recently at another shop in my city. He does service and is fairly green. Occasionally he calls me for advice …The subcool will rise a bit too but since as the head pressure rises as well, the fixed metering device will meter more refrigerant into the evaporator no matter what the evaporator heat load is and the superheat will start to drop dramatically. This will have an effect on subcool to a small extent but not as much as the system with a txv.Both are out of cooling. and both have high superheat. like suction 20psi -7F, suction line temp 78F, head pressure 190psi, 97F, liquid line temp 72F, out door dry bulb temp 73F, Wet bulb at register indoor 19F, indoor dry bulb temp at register 78F. ... High superheat with high subcool in piston system; Cookie ConsentVocational, Technical or Tra... 3,129 satisfied customers. I have high suction pressure and slightly low to correct head. I have high suction pressure and slightly low to correct head pressure. It is a heat pump operating in heat mode. Filters are clean and indoor coil is … read more.Business, Economics, and Finance. GameStop Moderna Pfizer Johnson & Johnson AstraZeneca Walgreens Best Buy Novavax SpaceX Tesla. CryptoMay 21, 2015 ... Do not try this at home! HVAC training is required!May 28, 2023 ... All my favorite HVAC tools: https://www.amazon.com/shop/thediyhvacguy?ref=ac_inf_tb_vh Ac Service Tech Charging Book: ...Oct 4, 2018 ... The cooling process takes place inside of the system's evaporator coil. As high-pressure liquid refrigerant flows into the evaporator coil, it ...Subcool: 8 F Trane R410A system has a design subcool of 10 +/- 3 degrees so my subcooling is within the threshold. ... lines of a restriction after the TXV within the cap tubes that is starving the evap coil giving me a low suction/very high superheat. Since my job at this moment is to keep a unit running and make sure that happens through the ...TGA Subcool Seeds, a leader in the cannabis industry, revolutionized the seed business with their "open source breeding" approach. Originating in 2001 by pioneers frustrated with industry falsehoods, this brand has crafted 37 distinctive marijuana strains over a decade. With strains designed to alleviate various ailments and a dedication to ...SUPERHEAT METHOD. 1. Take the suction line pressure and temperature at the condenser's suction service valve (air conditioning) or service port at the compressor (heat pump). If you use a probe-type thermometer, put a …When the device overfeeds, there are high chances for both the suction pressure and the discharge pressure to increase. 3. Reduced airflow through the evaporator. One of the most common reasons for low superheat is due to reduced airflow. With reduced airflow, there isn’t enough warm air to vaporize the refrigerant.The legendary cannabis breeder known as Subcool survived a nearly fatal diagnosis, the fiery destruction of his home and possessions, and a messy divorce from …Calculate. This free online tool allows HVAC professionals to quickly calculate Superheat and Subcooling measurements for both R22 & R410A refrigerants.This 3D video shows setting a charge by subcool on a TXV system In 3D. Learn how to charge a TXV air conditioner or heat pump using the sub cooling method wi...To give a simple example using the 100°-110° over ambient rule, if it were 60° outside, you could say that the charge is about correct by the 100°-110° over ambient rule. If it were 30° outside, the 100°-110° over ambient rule would show undercharge (or other conditions that can cause high discharge line temp; see this article). If, for ...1. a) Most walk-in coolers and freezers use a TX valve to regulate the flow of refrigerant into the evaporator. If the superheat is low the TX valve will allow refrigerant to flow into the evaporator at a rate that exceeds the capacity of the evaporator and as a result liquid will enter the suction line.Fill your container with 1/3 super soil (as directed on the bag), then fill the rest with Coco Loco soil. You will need not only your super soil but also Coco Loco (or other high-quality coco or regular organic soil) to help your young plants transition into the “hot” super soil. Fill bottom third with super soil, top half with Coco Loco.1. Low Refrigerant Charge (Low Subcooling) Or High Refrigerant Charge (High Subcooling) The most common cause for non-normal subcooling is a wrong refrigerant charge. If the system is overcharged (too much freon), we will get high subcooling. In the system is undercharged (low refrigerant charge), we will measure low subcooling.Subcooling. The term subcooling (also called undercooling) refers to a liquid existing at a temperature below its normal boiling point. For example, water boils at 373 K; at room temperature (293 K) liquid water is termed "subcooled". A subcooled liquid is the convenient state in which, say, refrigerants may undergo the remaining stages of a ... of the high side in °F. (Inner most # on high side gauge). C. SUBCOOLING = B - A. D. The ideal subcooling range is 8-15 °F. If your subcool is low you simply ...High Efficiency Subcool Condenser. 2013-01-1295. Sustainable reduction of the CO2 emissions of future vehicles goes hand in hand with the increase in efficiency of ancillary units. Of particular importance is the reduction of fuel consumption attributed to the vehicle's air conditioning system. The innovative development of a condenser with a 3 ...Oct 6, 2020 ... Welcome to Enertech University, online training by Enertech. Learn more about Superheat and Subcooling Calculations presented by Enertech's ...Sorry I typed in the wrong temperature of the evaporator and condenser temperature and the superheat and subcool. Temp outside was near 100F probably 98F, inside was 79F. High side: P = 304.6 psig . T = 94.9 F .When you read a higher level of subcooling, that means the system has more liquid stacked in the condenser. Any refrigerant below the condensing temperature is ...Aug 31, 2016 · The subcool will rise a bit too but since as the head pressure rises as well, the fixed metering device will meter more refrigerant into the evaporator no matter what the evaporator heat load is and the superheat will start to drop dramatically. This will have an effect on subcool to a small extent but not as much as the system with a txv. Subcooling is a process that takes place inside of your condenser coil shortly before the refrigerant moves on to the evaporator coil. This article takes a closer look at the important role that subcooling plays in overall air conditioning efficiency. The Nature of Subcooling. Before getting to the specifics of subcooling, you should know what ...of the high side in °F. (Inner most # on high side gauge). C. SUBCOOLING = B - A. D. The ideal subcooling range is 8-15 °F. If your subcool is low you simply ...July 24, 2022 by World Wide FAQS. High Subcooling is an indication that more than the designed amount of refrigerant is “backing up” or “packed” into the condenser. This can be caused by overcharge, restriction (such as a contaminated line drier or kinked liquid line), or an undersized or failing closed metering device.In instances when HVAC systems have negative subcooling values, it is an indication that there will be a move opposite of standard subcooling (or an increase in temperature). When there is a negative subcooling result, there is a good chance that the system is actually superheating its refrigerant rather than subcooling it. Superheat.The most common cause for non-normal subcooling is a wrong refrigerant charge. If the system is overcharged (too much freon), we will get high subcooling. In ...A reminder why subcooling is important: Among other things, if the subcooling is too low, the condenser will “run out of” refrigerant prematurely at higher load conditions, overheating the compressor and reducing performance and efficiency. If the subcooling is too high, the system will be overcharged, reducing performance, efficiency, …Apr 8, 2020 · If the actual subcooling is higher than the target subcooling, the unit’s refrigerant charge level is overcharged. Some refrigerant will need to be recovered into a recovery bottle. • Actual Subcooling +/-3° F Target Subcooling = Correct Refrigerant Level. • Actual Subcooling < Target Subcooling = Add Refrigerant. High subcool. Got called to look at a newer install not cooling well. The subcool is running at about 20. Outside temperature only about 75*, high pressure at 280, temp of 67.8 and low at 120# with 63.8*. Also they have a drier on suction side only, believe the line set was not replaced only condenser and AH. will return soon and need a plan of ... Jul 8, 2014 ... This one is a response to a comment about using high outdoor ambient to charge an air conditioner using sub cool. This video is part of the ...The liquid line temperature is 88 ° F. Subtracting the two numbers gives 36 ° F. High superheat and high subcooling indicates a problem with the metering device. Keep in mind that subcooling won't increase on …Mar 11, 2018 · Split system high subcool/high superheat So i installed a 2.5 ton amana split system in a house last summer and at startup everything was running good. I got called out late in the season and had high subcooling and high superheat. Jun 5, 2021 ... In this HVAC Training Video, I Show 7 Scenarios on How to Measure the Subcooling on R-410A Air Conditioners! These are used as Practice ...Both are out of cooling. and both have high superheat. like suction 20psi -7F, suction line temp 78F, head pressure 190psi, 97F, liquid line temp 72F, out door dry bulb temp 73F, Wet bulb at register indoor 19F, indoor …Defining High Subcooling. High subcooling is when the refrigerant in your HVAC system cools below its saturation temperature more than it should. Excessive subcooling, on the other hand, is when this process is taken to extremes, leading to a significant drop in the system’s performance and energy efficiency. Jul 13, 2007 · The unit is 8 years old. Indoor temp= 81, RH=68. Outdoor temp=93. Suction press=65 (should be 38F), Actual suction temp=81F same as room. Superheat=81-38=43 High. Discharge press=350, (should be 143F) Actual temp=130F. Subcool=143-130=13 Normal. Compressor amps rated at 22, pulling only 18. May 2, 2009 · Suction is 50, Discharge is 225. Subcool temp is 14, superheat is 36 (Fahrenheit I assume). Is it really the evaporator being starved of air? The house was built in 1979. The unit is 11 years old and it has recently had its condenser fan motor replaced. According to these links, the suction is low, discharge is normal, Subcool and superheat are ... The basic cooling process begins as liquid refrigerant under high pressure is forced through a metering device into a lower pressure region within an evaporator ...The saturated liquid curve is the curve separating the subcooled liquid state and the two-phase state in the T-s diagram. If a water exists as a liquid at the saturation temperature and pressure with quality of x = 0, it is called a saturated liquid state (single-phase). If the temperature of the liquid is lower than the saturation temperature ...May 14, 2023 ... HVAC Service Call: York RTU Low Superheat High Subcooling (Rooftop Package Unit High Head Pressure) HVAC Service Call: York RTU Not Cooling ...Rated Load Amps - 21.79. Subcooling for Normal Operation - 7 degrees F. Approach Value for Normal Operation - 11 degrees F. Liquid Line Pressure +or-10 / Vapor Line Pressure + or -5 at 85 F - 318/143. Liquid Line Pressure +or-10 / Vapor Line Pressure + or -5 at 95 F - 369/145. Measurements. Geographic Location - Central Florida (Lots of Heat ...of the high side in °F. (Inner most # on high side gauge). C. SUBCOOLING = B - A. D. The ideal subcooling range is 8-15 °F. If your subcool is low you simply ...May 28, 2023 ... All my favorite HVAC tools: https://www.amazon.com/shop/thediyhvacguy?ref=ac_inf_tb_vh Ac Service Tech Charging Book: ...1) Overcharging the system will cause high subcool. When there is excess refrigerant in the system, condensation and evaporation do not take place the way they …Liquid Subcooling: What it is and When to Apply it. Subcooling is often a lightly understood practice for new HVACR technicians entering the field. This blog post seeks to outline what it is, why it’s useful, and some of its best practices. In most cases, a new-to-the-field HVACR technician can tell you, in general terms, what liquid ...TGA Subcool Seeds, a leader in the cannabis industry, revolutionized the seed business with their "open source breeding" approach. Originating in 2001 by pioneers frustrated with industry falsehoods, this brand has crafted 37 distinctive marijuana strains over a decade. With strains designed to alleviate various ailments and a dedication to ...High Superheats — High superheats also are caused by the evaporator and compressor being starved of refrigerant. With the TXV restricted, the evaporator will become inactive and run high superheat. This will cause the compressor superheat to be high. The 100 percent saturated vapor point in the evaporator will climb up the evaporator coil ...Subcool, born Montgomery Ball, went on to develop Team Green Avenger Seeds (TGA Subcool Seeds/TGA Genetics/The Dank) and pioneer cultivars like Jack the Ripper and Space Queen. "My primary original goal was to create a line of marijuana seeds that grew out to be high-yielding, fruit-flavored hybrids," he told Big Buds in 2016.Goodman heatpump subcooling too high. I recently check my 2 1/2 ton R410a heatpump for pressures and subcooling in heat mode. All pressures at outside ambient temp (47 degrees) were within extended performance data ranges, however the subcooling was 27 degrees. This is well higher than normal recommended levels for this …Subcool’s Greatest Hits: Awesome Marijuana Cultivation Weed Nerd Videos. In the world of commercial marijuana strain breeding and seed production, there’s a guy named Subcool who creates tens of thousands of true-growing reliable cannabis seeds every year. Subcool’s cannabis seed company TGA (The Green Avengers) offers nearly …Subcool's Super Soil was something that gave me good results to begin with, but a closer look at the recipe and some research of my own, there's definitely a better solution. ... Here is the Recipe: 8 large bags of a high-quality organic potting soil with coco fiber and mycorrhizae (i.e., your base soil) 25 to 50 lbs of organic worm castings 5 ...R-410A is considered to be a more efficient refrigerant than R-22 because it helps HVAC equipment achieve higher SEER ratings. Additionally, R-410A has higher thermodynamic and transport properties making it more efficient in the refrigeration system than R-22. Therefore, this gives R-410A a higher refrigeration capacity than R-22.High Suction - Low Superheat and No Subcooling. 2.5 ton lennox condenser. 3 ton drive on blower. 3.5 ton evap. 50 evap. 45 SLT. 100 condensing temp. 105 LLT. Changed 3.5 ton txv to 2.5 but WTF.High subcooling can cause reduced cooling capacity and compressor damage, as well as increase the risk of liquid refrigerant flooding the compressor. In addition to a malfunctioning TXV, other factors that can cause high subcooling include a dirty condenser coil or restricted airflow over the condenser. ... Check the subcool outside …What causes low superheat and high subcooling? Because these readings are normal, the low suction pressure is caused by insufficient heat getting to the evaporator rather than low refrigerant. CAUSE #2: A faulty, plugged-in, or undersized metering device is to blame. As refrigerant is added to TXV systems with high superheat, double-check the ...A high subcool is often accompanied by high head pressure and, conversely, a low subcool by low head pressure. Subcool is always a very important calculation to take because it lets you know whether or not the metering device is receiving a full line of liquid. Typical ranges for subcooling are between 8 and 14° on a TXV system, …An essential tool for charging 410A by subcooling is a set of HVAC gauges. These gauges allow you to measure the pressure in your system, helping you determine the correct refrigerant charge. Make sure to use gauges specifically designed for …Jan 1, 2024 ... High subcooling will reduce the performance of the refrigeration system and ultimately damage the compressor valves. Hence it is recommended to ...Jun 13, 2017 ... For more tips, visit our website, http://www.edgetekhvac.com. To download a copy of our job sheet, visit our online literature library at: ...Subcooling = high side pressure readings converted to temperature using a P/T chart for your refrigerant, then take the line sensible temp ...1) Overcharging the system will cause high subcool. When there is excess refrigerant in the system, condensation and evaporation do not take place the way they …1. a) Most walk-in coolers and freezers use a TX valve to regulate the flow of refrigerant into the evaporator. If the superheat is low the TX valve will allow refrigerant to flow into the evaporator at a rate that exceeds the capacity of the evaporator and as a result liquid will enter the suction line.How to Check Subcooling. Attach the thermometer to the liquid line. This time, near the condenser. Then take the head pressure in Psi and convert it to the temperature on the pressure/temperature chart. Assuming you are dealing with a R22 system, let’s say the head pressure is 260Psi. This will convert to 120F.Fill your container with 1/3 super soil (as directed on the bag), then fill the rest with Coco Loco soil. You will need not only your super soil but also Coco Loco (or other high-quality coco or regular organic soil) to help your young plants transition into the “hot” super soil. Fill bottom third with super soil, top half with Coco Loco.Feb 7, 2018 · Subcooling should be 5-18 degrees, at the high end of that spectrum when the equipment has a TXV. Always go by the manufacturer’s specifications. Using superheat and subcooling data in troubleshooting: Low superheat: Too much refrigerant in the evaporator. It’s likely overcharged. High superheat: Too little refrigerant in the evaporator ...

What causes low superheat and high subcooling? Because these readings are normal, the low suction pressure is caused by insufficient heat getting to the evaporator rather than low refrigerant. CAUSE #2: A faulty, plugged-in, or undersized metering device is to blame. As refrigerant is added to TXV systems with high superheat, double-check the .... La weather monthly

high subcool

1. Low Refrigerant Charge (Low Subcooling) Or High Refrigerant Charge (High Subcooling) The most common cause for non-normal subcooling is a wrong refrigerant charge. If the system is overcharged (too much freon), we will get high subcooling. In the system is undercharged (low refrigerant charge), we will measure low subcooling.The Third Dimension strain > TGA Subcool Seeds Regular Marijuana Seeds | Hybrid | THC content 15-20% | High yield Buy cheap & anonymous . ... Regular Marijuana Seeds | Hybrid | THC content 15-20% | High yield. TGA Subcool Seeds 5/5 (9) Characteristics. Flowering Time. 6 - 8 weeks. Height. medium average stretch. Genotype. indica-sativa …Hi. It's Paul again. Measuring superheat and subcooling is essential for optimal performance of a refrigeration system. First, let's look at superheat. As ...May 14, 2023 ... HVAC Service Call: York RTU Low Superheat High Subcooling (Rooftop Package Unit High Head Pressure) HVAC Service Call: York RTU Not Cooling ...May 28, 2003 · Additional problems with high superheat could indicate a system undercharge, refrigerant restriction, moisture in the system, blocked filter-drier, or excessive evaporator heat loads. Use Subcooling To Troubleshoot. Refrigerant is usually subcooled between 10 degrees and 20 degrees at the outlet of the condenser. Here is a chart that contains low superheat causes and low subcooling causes: Indoor airflow (CFMs) is too low. Oversized AC unit. Outdoor airflow is too low (or condenser coils heat exchange is impeded). High refrigerant charge (overcharged AC unit). Metering device (TXV, AEV, or piston) is overfeeding.Jun 5, 2021 ... In this HVAC Training Video, I Show 7 Scenarios on How to Measure the Subcooling on R-410A Air Conditioners! These are used as Practice ...Aug 7, 2009 · 8 large bags of a high-quality organic potting soil with coco fiber and mycorrhizae (i.e., your base soil) 25 to 50 lbs of organic worm castings 5 lbs steamed bone meal July 24, 2022 by World Wide FAQS. High Subcooling is an indication that more than the designed amount of refrigerant is “backing up” or “packed” into the condenser. This can be caused by overcharge, restriction (such as a contaminated line drier or kinked liquid line), or an undersized or failing closed metering device.May 1, 2019 · Both are out of cooling. and both have high superheat. like suction 20psi -7F, suction line temp 78F, head pressure 190psi, 97F, liquid line temp 72F, out door dry bulb temp 73F, Wet bulb at register indoor 19F, indoor dry bulb temp at register 78F. At the start of the suction. The Third Dimension strain > TGA Subcool Seeds Regular Marijuana Seeds | Hybrid | THC content 15-20% | High yield Buy cheap & anonymous . ... Regular Marijuana Seeds | Hybrid | THC content 15-20% | High yield. TGA Subcool Seeds 5/5 (9) Characteristics. Flowering Time. 6 - 8 weeks. Height. medium average stretch. Genotype. indica-sativa …In this HVAC Video, I Explain Superheat and Subcooling in the Refrigeration Cycle to Understand the Operation Easier! I go over how to understand the importa...The following readings were taken on a 87 degree day aproximately 50% humidity with a indoor temperature of 82 degrees. Low pressure 62psi @ 65 degrees superheat=30 degrees, High pressure 330psi @ 90 degrees sub cooling = 40 degees. inside temperature differential aprox 14 degrees.42671 posts · Joined 2008. #5 · Jul 14, 2016. R410A at 60 PSIG is a sat temp of 9°F, so your original SH would have been 67°. Most compressors don't fair well with vapor return temps above 67°F for long periods of time. Its easier to determine if its low on charge or not when you run it in second stage.High Superheat and High Subcooling. This combination is a perfect example of why you can’t use manifold pressures alone to troubleshoot a refrigeration problem. They will fool you every time and result in a misdiagnosis. A system running high superheat and subcooling has a high-side restriction somewhere. The issue could be a liquid line ...of the high side in °F. (Inner most # on high side gauge). C. SUBCOOLING = B - A. D. The ideal subcooling range is 8-15 °F. If your subcool is low you simply ....

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