2024 Low head pressure normal suction

You are showing low head. Look at it this way. If everything is working properly you would have 8°-12° SC and 10°-20° SH. So lets look at just the SH side first. …. H2o electron geometry and molecular geometry

Mar 24, 2023 · Low suction pressure and low head pressure can cause decreased cooling capacity, reduced energy efficiency, and increased wear and tear on the compressor. TXV failure can also be caused by a rub out on the bulb tube and an external equalizer without a core depressor installed on a port that has a Schrader core in place. When it comes to fashion, comfort is key. Low wedge sandals are the perfect way to look stylish and feel comfortable at the same time. With a variety of styles and colors available... Typical low pressure or suction side pressure for R410A is about 120 psi, varying by ambient temperature, here assuming 75°F, may vary by equipment and metering controls. 3. Typical high side pressure for R410A is < 600 psi at an ambient outdoor temperature of 95 °F, may vary by equipment. 4. NPSH can be defined as two parts: NPSH Available (NPSHA): The absolute pressure at the suction port of the pump. AND. NPSH Required (NPSHR): The minimum pressure …Our diagnostic sheet shows that liquid line restrictions cause low suction pressure and normal to low head pressure, not high head pressure. That’s because the compressor requires refrigerant of a specific density to pump refrigerant into the high side of the system; when the suction pressure is low, the compressor can’t move as much ...60 ton split.2 circuits. both have high head and low suction. circuit 1 300#hp-35 suction. circuit 2 325 head-38 suction. R-22. fan belt is tight. evap is clean. both circuits flashing at sight glass. 85 ambient.200 ft. pipe run at same elevation.unit has history of failing compressors.unit also has history of normal suction pressures.im in the field 3 years now and this is the first time ive come across this. residential split system 1.5 tons and i had a good suction pressure but my head pressure was super low, only 150-160. the strange thing is operations seemed pretty normal. cold suction line, warm liquid line, condenser was putting out good heat, good indoor air flow, cl...Jul 8, 2019 · High Suction Pressure R-410a. i went to check an 3.5 ton a/c brand is a ICP (international comfort products) Model WAPL424A1, not cooling my pressures were low side 185 to 190 and high side was around 350 on a 107F hot day. It has a piston as a metering device and compressor was running at 11.50 amps and RLA is 17.25 amps. So we replace the compressor (same model #), replace the liquid line filter dryer, and evacuate to 500 microns. I weigh the charge in per the manual = unit's orignal charge + addl ounces per foot of lineset - total of 5# 6 oz. Start unit up, damn it, looks wrong immediatelY: Suction: 149.5 psi. Suction Temp: 55.4*F.Cooling. In the cooling mode, running in outdoor temperatures below 55 degree without a "low ambient control' will cause symptoms very similar to low refrigerant. The cold outside air will cause the head pressure to drop which, in-turn, causes the suction pressure to drop. Try blocking part of the outdoor fan discharge to increase …rmosden, hvacmatt123 liked this post. A cold suction line (low superheat) with low suction pressure is a symptom of low evaporator air. A liquid restriction would result high superheat (warm suction line). The high head probably due to the other guys overcharging, trying to get the suction pressure up.After the system runs for a while, raise the RPMs up to about 1,500. The system should be about 25 to 30 psi on the low side and 200 to 250 psi on the high side. If the ambient temperature is higher or lower than normal (70 to 80°F) …Apr 9, 2024 · 12. What is the normal suction pressure for neonates?-60 to -80 mmHg. 13. What are the contraindications of suctioning? Occluded nasal passages, nasal bleeding, epiglottis or croup, acute head face or neck injury, bleeding disorder, laryngospasm, irritable airway, and upper respiratory tract infection. 14. What is a Lukens trap? May 9, 2016 · The technician instantly notices the suction pressure is reading 50 psig (26°). For the outdoor temperature and humidity conditions that day, the normal suction pressure should be about 70 psig (41°). The head pressure also is low at 190 psig for the 90° day. The head pressure should be in the 255-265 psig range. 410a low suction pressure. I injected super seal in a 410a system that had a tiny leak that I could not find. 2 years later I come across the problem of low suction pressure normal head pressure. Replaced txv and had same problem. Replaced compressor and had the same problem. Could the super seal be clogging the txv or evaporator or condenser ...im in the field 3 years now and this is the first time ive come across this. residential split system 1.5 tons and i had a good suction pressure but my head …Apr 22, 2024 · If the suction pressure is 45 psi, (which converts to 22 ° F) and the suction temp is 32 ° F, the system still has 10 ° F of superheat. The fact that these readings are normal indicates the low suction pressure is not caused by low refrigerant, but insufficient heat getting to the evaporator. CAUSE #2: Defective, plugged, or undersized ... Mar 9, 2020 · Often, liquid refrigerant will accumulate in the bottom of the condenser and receiver, and condenser subcooling readings will be normal to high because of this. The system will have symptoms of low suction pressures, high evaporator and compressor superheats, normal to high condenser subcooling, low compressor amp draws, and low head pressures. Oct 7, 2023 · Pressure gauges provide readings of the condensing and suction pressures, allowing technicians to monitor and adjust the head pressure as needed. B. Measuring Head Pressure in Refrigeration Systems To measure head pressure in refrigeration systems, technicians connect pressure gauges to the service ports on the high and low sides of the system. 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. Fig. 3.55 illustrates this by plotting the pump discharge head vs. flow for high- and low-suction tank conditions. The control valve, however, tries to maintain a steady pressure. As a result, the flow rate varies as the suction pressure varies. In some cases, the flow rate may drop to below the recommended minimum at very low head conditions. You are showing low head. Look at it this way. If everything is working properly you would have 8°-12° SC and 10°-20° SH. So lets look at just the SH side first. What causes high SH, low on charge or a restriction. 8° SC would discount the low on refrigerant right. That leaves a restriction.The high head leads to poor heat rejection and the higher pressures can force more of the available refrigerant into the evaporator and show up as normal or high suction pressure with normal or low superheat. Also make sure the outdoor fan motor is running in the proper direction. Reply.Gonzo, if your evap was dirty you would have a low suction and low superheat. Not dirty evap let that go. High suction low head, with 100 lb suc and 100 degree ambient your head should be quite a bit higher. Really need the amp draw of comp and rated RLA but appears to be a compressor issue.They seem low, check pressure at the compressor, unless there's a long distance between the evap and the cond unit it should get you close enough. your pressures are low, 200-225/55-60 would be closer 90* SCT would be 200psig and 25* SST would be 60ish ... with 175 head 50 box temp i would expect suction to be low 30s to 20s. ice …If you own a Waterpik and are experiencing low pressure issues, don’t worry – you’re not alone. Low pressure can be frustrating, but luckily, there are several troubleshooting step... Study with Quizlet and memorize flashcards containing terms like In order for a system to operate correctly, the high side of the system must have enough _____, If there is a lack of refrigerant in a system, each pounds of refrigerant will not completely __________, When a system is undercharged, the total amount of latent heat absorbed into the evaporator refrigerant is increased over what an ... Read also: R410a Pressure Chart High and Low Side. psi: Pound per square inch, unit of pressure. FAQ What is the normal suction pressure on a 404a walk in the freezer? The normal suction pressure on a 404 a walk in freezer is around 10-20 psig (10 is ideal) on the suction side if working properly. And the high side is about 180 or so.This is the pressure in the air conditioner's refrigerant suction line (low side pressure during compressor operation) and this will be a relatively low number, often less than 100 psi. ... Low-side pressure during normal operation of the same compressor model and refrigerant and the same outdoor air temperature of 85 °F called for 45 °F ...60 ton split.2 circuits. both have high head and low suction. circuit 1 300#hp-35 suction. circuit 2 325 head-38 suction. R-22. fan belt is tight. evap is clean. both circuits flashing at sight glass. 85 ambient.200 ft. pipe run at same elevation.unit has history of failing compressors.unit also has history of normal suction pressures.Explore a comprehensive guide to troubleshooting low suction pressure and maintaining normal head pressure in HVAC systems. Learn about the causes, effects, and solutions for low suction pressure, as well as preventive measures to ensure optimal system performance.Restriction in the Refrigerant Flow. Another cause of low suction pressure high head pressure can be a restriction in the refrigerant flow. This can be caused by a blockage in the refrigerant lines or a problem with the compressor, and can lead to low suction pressure and high head pressure. 3. Faulty Compressor.An R-22 evaporator running at 40F saturation temperature will have a corresponding pressure of 68.5 psig. Should the suction pressure drop below 57 psig, the coil temperature will drop below 32F causing moisture in the air to freeze on it (see Figure 4) causing no end of trouble. A R-410A evaporator running below 100 psig will freeze-up just ...307. Post Likes. Low suction/low head pressures. Bevearage air Prep table not cooling- R134a, AEA4440YXA hermetic. pressures were about what they should be …Over time, refrigerant can leak out of an air conditioning system, keeping it from doing its job. A Freon recharge is a very common AC repair, though if you need one, there’s probably also a leak somewhere that needs repairing. The average refrigerant refill cost is $200–$640 for a central AC unit, though fixing the leak may cost more.Low condensing (head) pressure; Low condenser split; Normal to a bit high condenser subcooling; and/or; May be a local cool spot or frost after the restriction. ... The compression ratio will be high from the low suction pressure causing low volumetric efficiencies. The compressor will simply not be pumping much refrigerant, and all components ...Read also: R410a Pressure Chart High and Low Side. psi: Pound per square inch, unit of pressure. FAQ What is the normal suction pressure on a 404a walk in the freezer? The normal suction pressure on a 404 a walk in freezer is around 10-20 psig (10 is ideal) on the suction side if working properly. And the high side is about 180 or so.There is no such thing as normal head pressure. It is all based on temperature and calculations. ... with correct freon type. low suction pressure can be caused by no blower motor, closed or ...Both fans working fine. Good air flow through evaporator and condenser. There are no leaks, and no icing. I have tried adjusting the charge to raise the low side pressure, but in doing so would also raise the high side exponentially. (i.e. Increase the suction pressure by 20 psi, and the head pressure would jump as much as 150 psi)On 2012-04-28 by (mod) - high pressure on the suction side of an AC system. Not sure, but that hi pressure on the suction side sounds as if perhaps a refrigerant metering valve is stuck wide open. On 2012-04-13 by Glenn . Have a 2 ton R22 compressor with low pressure at 120. High side is at 80. What might be the problem? On 2012-01-12 by lopezTable 1: R134a Saturation Properties pressure table (Reference: www.chemours.com) Back to the problem at hand. For any refrigeration cycle/AC unit there are two operating pressures: suction pressure and discharging pressure, high and low settings for each pressure line determined by the manufacturer will stop the unit.The compressor is still cooling, but not to its rated capacity, which can cause refrigerated products to spoil faster and frozen products to begin to thaw. There are three main reasons why a compressor will simultaneously have a low head pressure and a high suction pressure: 1. Bad (leaky) compressor valves; 2. Worn compressor rings; and.Low head pressure. Decreased capacity. 1 of 100. ... High suction pressure, Higher than normal discharge pressure. Constant evaporator pressure. 90 of 100. Term. IF a TXV sensing bulb becomes detached from the suction line it will cause. ... Low suction pressure, High discharge pressure.How to Fix Low Suction Pressure Issues. If there is excessive moisture in system: replace the drier. If you find a flattened or kinked hose: replace the hose. If the compressor pistons have worn out: replace the compressor. If there is a shortage of refrigerant: add refrigerant. If there is a leaking compressor head gasket: replace the head gasket.Low condensing (head) pressure; Low condenser split; Normal to a bit high condenser subcooling; and/or; May be a local cool spot or frost after the restriction. ... The compression ratio will be high from the low suction pressure causing low volumetric efficiencies. The compressor will simply not be pumping much refrigerant, and all components ...Low condensing (head) pressure; Low condenser split; Normal to a bit high condenser subcooling; and/or; May be a local cool spot or frost after the restriction. ... The compression ratio will be high from the low suction pressure causing low volumetric efficiencies. The compressor will simply not be pumping much refrigerant, and all components ... At an absolute pressure of 101.3 kN/m 2 (normal atmosphere) the boiling starts at 100 o C. Net Positive Suction Head - NPSH. The Net Positive Suction Head - NPSH - can be defined as. the difference between the Suction Head, and; the Liquids Vapor Head; and can be expressed as. NPSH = h s - h v (3) or, by combining (1) and (2) 224. Post Likes. Ambient is pretty low. From my experience you should be around 130-150 psi and 14-18 psi when box is at 38 and ambient is between 80-95 degrees. If this unit is going to be in a hot restaurant kitchen I would definitely try to …Although cryptos enjoyed strong performances earlier, a lack of fundamental catalysts may apply some pressure on the sector. The fiat alternative narrative isn’t quite panning out ...High Head Pressure, Normal Suction Pressure . High Head Pressure, Normal Suction Pressure is a common problem that can occur in an air conditioning system. It occurs when the compressor’s condensing unit has difficulty turning the refrigerant from gas to liquid because of high outside temperatures or inadequate airflow through the outdoor coil.Low-side pressure during normal operation of the same compressor model and refrigerant and the same outdoor air temperature of 85 °F called for 45 °F temperature entering the compressor (subtract 40 °F from incoming air temperature) which on the service chart indicates that the incoming or suction line pressure would be about 75 psi.Table 1: R134a Saturation Properties pressure table (Reference: www.chemours.com) Back to the problem at hand. For any refrigeration cycle/AC unit there are two operating pressures: suction pressure and discharging pressure, high and low settings for each pressure line determined by the manufacturer will stop the unit.How to Use a Pool Vacuum. Visit HowStuffWorks.com to learn more about how to use a pool vacuum. Advertisement Using a pool vacuum makes the task of cleaning the floor of the pool e...Jack Ma's Ant Group and Alibaba have come under increasing regulatory pressure from Chinese authorities in recent months. Jump to Alibaba jumped as much as 5% on Tuesday after CNBC...Low Load. While we often think of the combo of low suction, superheat, and head pressure as being caused by low airflow, it actually falls under a larger heading of low evaporator load. That simply means that the quantity of heat being picked up in the evaporator is lower than the refrigerant mass flow rate requires for the desired operation.How to Use a Pool Vacuum. Visit HowStuffWorks.com to learn more about how to use a pool vacuum. Advertisement Using a pool vacuum makes the task of cleaning the floor of the pool e... 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, there’s absolutely ‘no’ set point pressure for 410a, r22, or anything else. Educate yourself on whats going on in the heat transfer process. Do it until all the pressure from the low side AC is out before disconnecting everything you used. e. Disconnect the Compressor. Now, after releasing the pressure from the low side AC, disconnect the line connecting the low-pressure side of the compressor to the suction line. Finally, open the valves.Do you find yourself constantly frustrated with low water pressure in your home? Whether it’s a weak shower, slow-filling toilet, or inadequate water flow in your kitchen sink, low...High head - normal suction; Cookie Consent ... Suction pressure: 110ish head pressure: 400 reached 550 when I put my wind breaker over the top - Condenser coil was clean ... Also I recovered a bit of gas and it just became low suction (90) , high head (350), high super heat, high subcooling. Reply . 06-11-2020, 06:08 PM #4.High Head Pressure, Normal Suction Pressure . High Head Pressure, Normal Suction Pressure is a common problem that can occur in an air conditioning system. It occurs when the compressor’s condensing unit has difficulty turning the refrigerant from gas to liquid because of high outside temperatures or inadequate airflow through the outdoor coil.Low head pressure may occur simulataneously with high pressure on the suction side of an air conditioner, heat pump or refrigeration system compressor system. If the system is continuing to cool it may be doing so at reduced capacity, observed as a loss of up to ten degrees of temperature drop across the coil.Article ID: 64. Last updated: 16 May, 2017. Cooling. Re: Low Suction Pressure. A heat pump or air conditioner runs with a lower-than-normal suction …Do you find yourself constantly frustrated with low water pressure in your home? Whether it’s a weak shower, slow-filling toilet, or inadequate water flow in your kitchen sink, low...A blockage causes high head pressure while suction pressure remains low. This imbalance puts strain on the compressor and reduces cooling efficiency. To troubleshoot, technicians will check for dirty filters, malfunctioning expansion valves, and debris in condenser coils. Clearing these blockages restores proper function to the refrigeration cycle.Because discharge gases have leaked through the rings and into the crankcase, the suction pressure will also be higher than normal. The resulting symptom will be a lower head pressure with a higher suction pressure. The symptoms for worn rings on a compressor are very similar to leaky valves.The normal position for a suction service valve during normal operation is ____. back seated. front seated. cracked off the back. mid-seated. 16 of 21. ... Which of the following is another type of low ambient temperature head pressure control? Choose matching definition. air volume control using shutters and fan cycling.Low-Pressure Suction Side. The low-pressure side, when connected to the gauge, should read less than 100 psi. PSI is the common measurement for pressure used in terms of pounds per square inch. By the time the refrigerant reaches these lines it has lost most of its heat and has collapsed into a liquid state, taking up less volume.We don't normally see buy-points deals this good. Update: Some offers mentioned below are no longer available. View the current offers here. Radisson Rewards is offering a 100% bon...I have a suction pressure of 70, converted temp of 41, suction line temp of 51, head pressure of 250, converted temp of 117, head line temp of 96. Air entering condenser is 82 and exit is 100. Air entering evaporator is 76 and exiting is 52.If an ice machine with a water-cooled condenser has an operating head pressure below normal but still within the manufacturer's recommended range, ____. ... suction pressure, head pressure, and the sight glass ... producing little or no cooling, and experiencing high head pressure. The high head pressure may be due to ____.If this is so always evaporating above zero, 4 or 5 deg celcius, R407c will have a low pressure (suction ) of about 50 psi. and a high pressure ( discharge ) of about 280 psi, which is about 55 deg celcius, cooling cycle. Standing pressure ( system not running ) will depend on surrounding temperature of outdoor unit.Justin Berman has one of the most important jobs at Dropbox. As head of security, he oversees the company’s cybersecurity strategy, its defenses and works daily to keep its more th...Oct 17, 2013 · The compressor is still cooling, but not to its rated capacity, which can cause refrigerated products to spoil faster and frozen products to begin to thaw. There are three main reasons why a compressor will simultaneously have a low head pressure and a high suction pressure: 1. Bad (leaky) compressor valves; 2. Worn compressor rings; and. Low-side pressure during normal operation of the same compressor model and refrigerant and the same outdoor air temperature of 85 °F called for 45 °F temperature entering the compressor (subtract 40 °F from incoming air temperature) which on the service chart indicates that the incoming or suction line pressure would be about 75 psi. low head pressure generally causes insufficient refrig-erant to be fed to the evaporator. 2. Any system using hot gas for defrost or compressor capacity control must have a normal head pressure to operate properly. In either case failure to have sufficient head pressure will result in low suction pressure and/or iced evaporator coils. After the system runs for a while, raise the RPMs up to about 1,500. The system should be about 25 to 30 psi on the low side and 200 to 250 psi on the high side. If the ambient temperature is higher or lower than normal (70 to 80°F) … I have a suction pressure of 70, converted temp of 41, suction line temp of 51, head pressure of 250, converted temp of 117, head line temp of 96. Air entering condenser is 82 and exit is 100. Air entering evaporator is 76 and exiting is 52. 30 suction pressure is definitely a bit high. It should be running at 10-20psig (10 is ideal) on the suction side if working properly. And the high side should be about 180 or so. I hope I have earned a 5 star rating. We are on the honor system here.While a blood pressure of 120/80 is normal for people over 18, for those under age 18, normal is based on a percentile rating for the teen’s age, height and gender, according to Ki...Are you confused about all the different blood pressure readings? You aren’t alone. Read this quick guide to learn more about the difference between systolic and diastolic, what no... Terms in this set (24) When a redfrigeration systems's suction line is noticeably cold instead of just being cool, it probably contains___refrigerent. low-pressure liquid. When a refrigeration systems's liquid linw is noticably hot instead of just being warm. probably contains ____ refrigerant. high-pressure vapor. Cooling. In the cooling mode, running in outdoor temperatures below 55 degree without a "low ambient control' will cause symptoms very similar to low refrigerant. The cold outside air will cause the head pressure to drop which, in-turn, causes the suction pressure to drop. Try blocking part of the outdoor fan discharge to increase …Fan pressure sw ., cut out / cut in, PSIG 190 - 240 High pressure cut out / cut in, PSIG 500 / 390 Compressor Amps, beg . - end, freeze 5 .8 - 5 .0 Compressor Amps, harvest 6 .8 Cycle Time (minutes) Ambient Air Temp (deg . F) Water Temp 70 80 90 50 13 13-14 17 70 13-14 14 17-18 80 14-15 15 19-20 90 15-16 17 21-22 Low Side PressuresThe system actually works fairly well even on hot days, its just 2-3 degrees off the thermostat setting. The suction pressure is 95 PSI, about 28 degrees, but the superheat is normal, at 10. The liquid line pressure is fine, the outside coil is clean and the subcooling is 10, which is what the manufacturer calls for.

Fig. 3.55 illustrates this by plotting the pump discharge head vs. flow for high- and low-suction tank conditions. The control valve, however, tries to maintain a steady pressure. As a result, the flow rate varies as the suction pressure varies. In some cases, the flow rate may drop to below the recommended minimum at very low head conditions.. Dutch bros points expire

Over time, your vehicle's air-conditioning system may leak out enough freon to require a recharge. This is a normal occurrence due to seal shrinkage and compressor inactivity durin...Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. On 2020-07-14 - by (mod) - when you have abnormally high refrigerant pressure on the low side. Wilson when you have abnormally high refrigerant pressure on the low side or suction side I suspect blockage in the refrigerant line or failed thermostatic expansion valve On 2020-07-13 by Wilson phanSuction pressure, head pressure, subcooling, superheat, Delta T. Taking all five of these calculations into account on every service call is critical. Even if further diagnostic tests must be done to pinpoint the problem, these five factors are the groundwork before more effective diagnosis can be done. I would also add static pressure as an …Understanding head and suction pressures helps grasp HVAC functionality better. Suction pressure is on the low side; it pulls refrigerant into the compressor. Head Pressure: Pushes refrigerant through; Suction Pressure: Pulls it back for compression; This push-pull dynamic keeps your space cool or warm depending on need.Jack Ma's Ant Group and Alibaba have come under increasing regulatory pressure from Chinese authorities in recent months. Jump to Alibaba jumped as much as 5% on Tuesday after CNBC...Low-side pressure during normal operation of the same compressor model and refrigerant and the same outdoor air temperature of 85 °F called for 45 °F temperature entering the compressor (subtract 40 °F from incoming air temperature) which on the service chart indicates that the incoming or suction line pressure would be about 75 psi.The compressor is still cooling, but not to its rated capacity, which can cause refrigerated products to spoil faster and frozen products to begin to thaw. There are three main reasons why a compressor will simultaneously have a low head pressure and a high suction pressure: 1. Bad (leaky) compressor valves; 2. Worn compressor rings; and.be very nearly equal on both LP and HP gauges. The actual static pressure will depend on the ambient temperature. To ensure it is on the right level, refer to a static pressures table applicable for R134A refrigerant (N.B. not shown on this poster). A low static pressure means a too low system charge, indicating a leak that must be found and ...4. Post Likes. Very high suctuion and head pressure on heating mode. Hello, I have a Rheem (2015) heat pump 2ton 410A, on cooling mode the system runs great; suction and liquid pressure are ok 185/360, super heat 10 F, with 90F outdoor temperature, now the winter is coming and the system on heating mode the gages read …There are three main reasons why a compressor will simultaneously have a low head pressure and a high suction pressure: 1. Bad (leaky) compressor valves; 2. …If you own a Waterpik and are experiencing low pressure issues, don’t worry – you’re not alone. Low pressure can be frustrating, but luckily, there are several troubleshooting step...Dealing with low water pressure in your home? This guide explains the potential underlying problems and five simple, effective solutions for fixing them yourself. Expert Advice On ...Oct 17, 2013 · The compressor is still cooling, but not to its rated capacity, which can cause refrigerated products to spoil faster and frozen products to begin to thaw. There are three main reasons why a compressor will simultaneously have a low head pressure and a high suction pressure: 1. Bad (leaky) compressor valves; 2. Worn compressor rings; and. High Suction Pressure! I have a 3Ton Carrier Heat Pump unit using 410A that has extremely high suction pressure around 250PSI. I also have a low liquid line pressure around 300PSI and my sub-cooling is around 40-50 Degrees. I have checked for a stuck liquid line solenoid but this system does not have one, and I checked the ….

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