Low subcool low superheat

High superheat low subcooling on a TXV system means that there is no sufficient amount of refrigerant in the evaporator and there is low amount of the refrigerant in the condenser unit. This condition is mainly caused by low charge in an air conditioning system and can be fixed by sealing leaks and adequately charging the system with a …

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Subcooling is a measurement of how much the liquid in the condenser cools down before exiting. When the hot gas in the condenser first turns to liquid, its temperature is at the saturation point. This means that the temperature of the liquid as it first forms is at the same temperature at which the refrigerant is condensing — the saturation ...Running low superheat and low subcool....txv stuck open.....you can add and add refrigerant....need new txv. The same situation was happening to me: 410-A condenser, Low SuC and Low SuH, i struggled to find out why. A super dirty conders coil and air in system where 2 things that pop in my head.Over Charge- If refrigerant charge is high, the superheat will be low. The low side pressure will be higher than normal. This indicates the refrigerant did not absorb enough heat to properly change to a vapor. Liquid refrigerant may enter the compressor if superheat is too low. Dirty Evaporator Coil- A dirty air filter, evaporator coil or lack ...Watch on. You can find your target superheat using charts, such as manufacturer-provided ones or universal ones from sources like TruTech Tools or the HVAC School app. You need the outdoor dry-bulb temperature and the indoor wet-bulb temperature; the indoor wet-bulb temperature gives you a better idea of the total indoor load on the coil.Low airflow can be caused by a dirty or clogged air filter or a malfunctioning fan or blower motor, so be sure to investigate those components as the source of insufficient airflow. Low refrigerant charge. As seen in the table in Figure 2, a low refrigerant charge will result in a higher superheat and a lower subcooling and lower evaporator ...tube, the superheat heating will vary between 8 to 20 °F. On newer systems, which use elec-tronic expansion valves and solid state controllers, it is possi-ble to see the superheat setting as low as 5 to 10 °F. A low or zero superheat read-ing indicates that the refrigerant did not pick up enough heat in the evaporator to completely boil into ...

Overcharged systems have higher-than-normal amounts of subcooling. Undercharged systems have low subcooling. Comparing high-side subcooling and low-side system superheat will usually solve most refrigeration cycle problems of overcharge, undercharge, and restrictions. Normal evaporator air temperature drop is 18° to 20°.The increase in temperature above saturation is described as the refrigerant’s superheat value. For example, at 18.42 psig, R-134a has a saturation temperature of 20°F. If its measured temperature is 30°F, the refrigerant is said to be superheated by 10°F. One useful area to measure the refrigerant’s superheated value is at the exit of ...Low subcooling means the condenser is low on liquid and might be low on charge. This is how I understand it, hope this makes sense. This is just the basics, other outside factors, such as fan speed, compressor loading, air temperature, and head pressure controls can have an effect on superheat and subcooling.With charging superheat gets very low and subcooling still low too for a TXV SYSTEM. Initial readings before charging : R-410A. Suction pressure 118 psig. Liquid pressure 330. Subcooling 0.9 degrees. Superheating 27 degrees. Suction line Temp 67 F. Liquid line Temp 102 F. After adding 3 lbs of Freon.An escrow account is used to simplify the collection and payment of real estate-related items. Your lender computes the amount needed to pay escrow items each year and after change... 4. Low Subcooling Caused Poor Compression (Potential Compressor Problem) 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 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 head pressure. Heating.For example, a very low reading (between 0 degrees to 10 degrees subcooling) indicates that the refrigerant did not lose the normal amount of heat in its …Troubleshooting Subcooling Issues Common Causes of Low Subcooling. Low subcooling can be a bit of a headache. Some common causes include undercharged refrigerant, non-condensable gases, or a restricted expansion device. Identifying the culprit and resolving the issue will help get your AC back on track.SH What is the superheat if suction line temperature is 47 "F, low side pressure is 35.1pPSig and you have R-134a refrigerant in the system? SH What is your subcooling if you have R-410A refrigerant in the system, liquid line pressure is 364.8 PSig and liquid line temperature is 90 "F?1. Check Refrigerant Pressures. Hook-up refrigerant gauges to the pressure ports on the unit. Blue --> "True Suction" Low Pressure. Red --> High Pressure (Small liquid line) Allow the unit to run for 5-10 minutes. Monitor pressures as the system operates. Normal R-22 Suction Pressure = 60 - 80psig. 2.Steam at 213 degrees F is superheated by 1 degree F. Superheat is then any temperature of a gas above the boiling point for that liquid. When a refrigerant liquid boils at a low temperature of 40 degrees in a cooling coil and then the refrigerant gas increases in temperature, superheat has been added. If this refrigerant changed from a liquid ...

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SUPERHEAT/SUBCOOL CALCULATOR with Thermometer and P/T Chart (69196) OPERATING STEPS. 1. Press the power button. For SuperHeat or Low Side PT Data. Suction Line “Super Heat” Match low side manifold gauge reading (suction pressure) 2. Use the and to display the desired refrigerant. 3. Press ENTER. For SubCool or High …To check subcooling, attach a thermometer to the liquid line near the condenser. Take the head pressure and convert it to temperature on a temperature/pressure chart. Subtract the two numbers to get the subcooling. For example, 275 psi head pressure on an R-22 system converts to 124°F. The liquid line temperature is 88°F.By Martin King Posted December 9, 2022. 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 importance of both Superheat and Subcooling. I go over the refrigeration cycle, where superheat is found and what will happen if a Piston or capillary tube ...Actual Line Temp – Sat Temp = Total Superheat. 55°F - 37°F = 18°F. 18°F of Total Superheat > 9°F Target Superheat = Undercharged. Since the actual total superheat measured is higher than the target superheat, we would need to add refrigerant a little at a time until the superheat is the same as the target superheat.York Chiller Low Discharge Superheat. Can someone help us with a problem on a York YCAV0247PA46VABB air cooled chiller. We are experiences a low discharge superheat alarm. We have pulled the gas out and weighed it back in to make sure we have the correct amount and all is good there. We started it back up and the alarm is still present.

The condenser subcooling will be normal to a bit high because of this. The refrigerant flow rate will be low through the system from the restriction. This will cause what refrigerant there is in the condenser to remain there longer and subcool more. Note that an undercharge of refrigerant will cause low subcooling. Low Evaporator PressuresJust like with subcooling, low or high superheat readings mean that the system either has too little or too much refrigerant in most cases. Low superheat means that there is too much in the evaporator. High superheat means that there is not enough in the evaporator. High superheat can be caused by restrictions in the line, significant airflow ...A network storage device is one of the best ways to keep your data backed up, but it can be a little pricey to set up and leaving a computer on all the time sucks a lot of power. I...Jess Gordon is the service manager at Tempo Mechanical Services, Irving, TX. The company was Contracting Business magazine's 2003 Residential Contractor of the Year. Jess can be reached at 972-579-2000, or by e-mail at [email protected]. Superheat is a way to ensure that the system is boiling off all of the liquid before it exits the evaporator.The compressor superheat is the sum of the evaporator superheat and vapour line or suction line superheat. The range of low side pressure for the R404 is nearby 20 psig in the usual case, and the inlet temperature of the compressor is 25° C approx.A high superheat is an indication of either a low refrigerant charge or a liquid line restriction problem. To tell the difference between the two problems, we look at subcooling. A system with a low refrigerant charge will have a low subcooling. A system with a liquid line restriction will have a normal to high subcooling.Maryland. Posts. 9. Post Likes. Low Subcooling Low Superheat? I am working on a two stage heat pump with a varable speed air handler. The system runs about 1.5 deg S/C and about 2 deg S/H The delta T is 22 deg. A capacity check shows systems is operation at 122% of publish Capacity. Adding refregerant does not change the S/C …3. Low superheat adjustment 4. Bulb installation a. Poor thermal contact b. Warm location 5. Wrong thermostatic charge 6. Bad Compressor - low capacity 7. Moisture, dirt, wax 8. Incorrectly located external equalizer h h S t L w S n e p S e POSSIBLE CAUSES 1. Moisture, dirt, wax 2. Undersized valve 3. High superheat adjustment 4. Gas charge ...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). To simplify this, we can say that: High Superheat = Amount of refrigerant in the evaporator coil is too low. Low Subcooling = Amount of refrigerant in the condenser ...Study with Quizlet and memorize flashcards containing terms like High Superheat, Low Superheat, High SubCooling and more.Too low is when the liquid stops moving and becomes solid. But seriously, the lower the liquid temp entering the txv, The less energy is wasted to bring that liquid temp down to the evaporating temp. Eg: 55c entering txv down to -10c as it exits txv. Vs 35c to -10c. Or 45c down to -30c vs 25c down to to-25c.162. 25. I know that having both high superheat and low subcooling on an Air-Conditioner (A/C) is a strong indication that an air-conditioner does not have enough refrigerant. When the charge on an A/C is low, there is less refrigerant that enters the evaporator. When there is a lower amount of refrigerant entering the evaporator, it takes …

Bryan with HVAC School goes over AC pressures, subcooling, and superheat in his troubleshooting mindset presentation from the BTrained HVAC training event in...

Subcooling: It’s the process of cooling refrigerant below its saturation temperature. Subcooling increases the efficiency of your HVAC system by making sure the refrigerant is fully condensed before it enters the evaporator. Superheat: This is when the refrigerant gets heated above its boiling point. Superheat prevents liquid refrigerant from ...What causes low superheat HVAC? Low superheat in HVAC can be caused by factors such as low refrigerant charge, a faulty expansion valve, or insufficient heat load on the evaporator. What is normal superheat for 410a? Normal superheat for R-410A systems can range from 5-25°F (2-14°C) depending on the specific system and operating conditions.When the subcool is set at 8C, the cooling capacity of DME is 6.5% lower than R134a but the COP is 2.6% higher. Another important finding in this study is that the best performance of DME over R134a is obtained at low subcool and low superheat.Fig. 6 compares the heat duty of the two tube surfaces under evaporation dominated conditions (high superheat/low subcooling). It can be seen from the figure that the total heat duty from the porous tubes is greater than that of the plain tubes for the entire solution flow regime. As mentioned earlier, the figure also shows that the sensible ...Subcooling: It’s the process of cooling refrigerant below its saturation temperature. Subcooling increases the efficiency of your HVAC system by making sure the refrigerant is fully condensed before it enters the evaporator. Superheat: This is when the refrigerant gets heated above its boiling point. Superheat prevents liquid refrigerant from ...Subcooling The last function of the condenser is to subcool the liquid refrigerant. Subcooling is defined as any sensible heat taken away from 100% saturated liquid. Technically, subcooling is defined as the difference between the measured liquid temperature and the liquid saturation temperature at a given pressure.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.

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The superheat will also be affected by: what stage the unit is in (high, or low) and if its running in dehumidification mode ( a very low airflow, around 275 cfm per ton) Also, the Infinity system has various system airflow settings- efficiency, high, max, that can affect superheat.Measure the actual temperature at the condenser outlet location and compare the two. The difference between the two is Subcooling. What is superheat? Superheat is the difference between the boiling point temperature of the refrigerant in the evaporator coil and the actual temperature of the refrigerant gas as it leaves the evaporator.Great discussions are par for the course here on Lifehacker. Each day, we highlight a discussion that is particularly helpful or insightful, along with other great discussions and ...A low suction superheat does not 'indicate' an overcharge. Low suction superheat is the result of too much refrigerant in the evaporator for the heating loading of the evaporator at that moment in time. Post the startup report data: Outdoor Ambient temperature. Condenser air temp in. Condenser air temp out.Study with Quizlet and memorize flashcards containing terms like FMD UNDERCHARGE, FMD OVERCHARGE, FMD LOW INDOOR AIRFLOW/ LOAD and more.Lowes.com is the official website of Lowe’s Companies, Inc., one of the largest home improvement retailers in the world. The website was launched in 1996 as a way for customers to ...Low suction pressure, low superheat and low subcooling are a good indicator of poor airflow. Generally SH should be 10-15 and SC around 12. Now, once we establish airflow, next step is to confirm metering device - is it a piston or TXV? With a piston, we go by superheat. Add refrigerant to lower superheat or remove refrigerant to raise superheat.If your filter drier was plugged you would have low suction pressure and high superheat. This looks like something is going on internally and stopping your compressor from moving gas. ... When you have a receiver it's normal to have very low subcooling readings between 1 and 3 degrees. This more looks to be low compression if everything he ...An undercharge will have low condenser liquid subcooling readings on the high side, where a dirty air filter for the evaporator will not produce low condenser liquid subcooling readings. ... temperature of 26° from the compressor inlet temperature 28° and finds out that there is only 2° of compressor superheat, as shown in this equation ...You get superheat when you have 100% vapor, and you have subcooling when you have 100% liquid; any liquid-vapor mixtures are in a saturated state. We usually measure superheat outside at the suction or vapor line. It's best to take the superheat reading as close to the port as possible. Anything in the saturated state is boiling; you can only ...Running low superheat and low subcool....txv stuck open.....you can add and add refrigerant....need new txv. The same situation was happening to me: 410-A condenser, Low SuC and Low SuH, i struggled to find out why. A super dirty conders coil and air in system where 2 things that pop in my head. ….

Lots of people saying check airflow, but low airflow cannot lead to high superheat. The refrigerant is entering the evaporator at 23°, but it's 70° by the time it leaves. What is warming it up, if not airflow? The only realistic way to have both high superheat and low subcool is low charge.A system with low superheat and high subcooling has too much refrigerant. The two previous conditions we looked at had high superheat. Low superheat shows too much refrigerant in the evaporator, and it cannot boil it off fast enough. The excess refrigerant could easily make it back to the compressor and cause permanent damage from flood back ...TXV or cap tube, the superheat heating will vary between 8 °F to 20 °F. On newer systems, which use electronic expansion valves and solid state controllers, it is possible to see the superheat set-ting as low as 5 °F to 10 °F. A low or zero superheat read-ing indicates that the refrigerant did not pick up enough heat inJust like with subcooling, low or high superheat readings mean that the system either has too little or too much refrigerant in most cases. Low superheat means that there is too much in the evaporator. High superheat means that there is not enough in the evaporator. High superheat can be caused by restrictions in the line, significant airflow ...By Martin King Posted December 9, 2022. 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 importance of both Superheat and Subcooling. I go over the refrigeration cycle, where superheat is found and what will happen if a Piston or capillary tube ...Shares of MMM flirt with making a new 52-week low, according to the charts....MMM Employees of TheStreet are prohibited from trading individual securities. These recently downgrade...Study with Quizlet and memorize flashcards containing terms like Compressor overheating Low subcooling High head pressure, Higher energy bills Longer run time increased wear and tear on the compressor, Liquid refrigerant is present in your oil have low superheat and more.High subcooling is usually accompanied by high head pressure because liquid is displacing available condensing area. Low superheat, low evaporator load - dirty filter, slipping belt, low fan speed, filthy coil. High superheat, evaporators being starved for refrigerant if suction pressure is low. If suction pressure is high and superheat seems ...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 ...Low subcooling and high superheat are both conditions that can occur in a refrigeration system and indicate a problem with the system's balance. Low subcooling means that there is an insufficient amount of refrigerant in the condenser, which is the part of the system where the refrigerant releases the heat it has absorbed from the evaporator. Low subcool low superheat, Overcharged systems have higher-than-normal amounts of subcooling. Undercharged systems have low subcooling. Comparing high-side subcooling and low-side system superheat will usually solve most refrigeration cycle problems of overcharge, undercharge, and restrictions. Normal evaporator air temperature drop is 18° to 20°., High Subcool Low Superheat. Hi I own two wonderful Trane wethertron heat pumps"8 seer". 85 degree day 115 condensing temp. Low side was 65 psig High side 240 psig. 6.5 superheat and 25 degree subcooling. My first assumption was overcharge due to poor winter performance energizing aux heat strips a lot. Right now in cooling I have a 17 …, Resolution: CGAF chillers: Chillers with R-22 refrigerant. Subcooling between 14-22 degrees F. Superheat between10-16 degrees F. Chillers with 407C. Discharge temperatures will be approximately 25 psi greater. Suction pressure will be approximately 2 psi lower. Superheat will be the same (12-15F), When it comes to purchasing a vehicle, finding an affordable option is often at the top of many buyers’ lists. Two popular choices for budget-conscious individuals are low-cost car..., Join Date. Aug 2019. Posts. 106. Post Likes. "Normal" pressures, low subcool. A lot of times when I am checking TXV equipped units I'll have normal pressures with a very low subcool. For example. 75 indoor. 20 delta t. 85 outdoor. Pressures around 320/130 psi., Troubleshooting, Heat Pump, AC. In this video, I use a job check out sheet of complete system run data to determine what is wrong with the system using subcooling and superheat. Metering device is a Piston., Buy HIATSU Digital Manifold Gauge HVAC Refrigeration Heavy Duty with 2 Wired Temperature High Low Side Pressure Measurement Superheat Subcooling 3 Hose Refrigeration Support 88 Types of Refrigerants: Air Conditioning Line Repair Tools - Amazon.com FREE DELIVERY possible on eligible purchases, The unit cooled the house down to 70 it’s probably 85 outside. These are my readings 296psi high side, 95.8 lstat, 93.6 line temp, 2.3 subcool. 140.6psi low side, 50.1 vstat, 51.3 line temp, 1.2 superheat. 20degree delta tee across the return and supply., York Split AC unit R-22 evap settings; HP 330PSI PT(53°C) RT(47.5°C) 9.5°C SUBCOOLING LP 85 PSI RT(15°C) PT(9°C ) 10.7°C SUPERHEAT. On of the may things bothers me right know is; 1.- The systems is operating between the range of sub-cooling and superheat. 8-12°f or 11-13°C 2.- High side is high of this refrigerant... I meant the PT char for R22 at this temperature is 57°C, the ..., When an evaporator float switch is used in the drain pan of an air conditioner or heat pump, if the drain pan fills up the float will interrupt the low voltage circuit to. the compressor contactor. A system operating with a high superheat and a high subcooling most likely has. A refrigerant restriction., Watch on. You can find your target superheat using charts, such as manufacturer-provided ones or universal ones from sources like TruTech Tools or the HVAC School app. You need the outdoor dry-bulb temperature and the indoor wet-bulb temperature; the indoor wet-bulb temperature gives you a better idea of the total indoor load on the coil., Freezer superheat and subcooling. Hello HVAC tech I am working on a walk in freezer box temp is -10 degrees. this is a R402A refrigerant unit by Larkin it is a Copeland compressor. My suction temp. at the compressor is 33.7 the saturated temp is -32 at 10 psi. the High side is 215 psi saturated temp 89 degrees and the pipe temp is 91 degrees ..., I am testing a new ac condenser. I noticed that the suction pressure and suction pipe temperature are low. The suction pipe temperature drops down to low 30°..., Subcool is subcool. 4f is a bit on the low side. 9f is just fine. The subcool just means there is enough liquid refrigerent built up behind the expansion device to allow proper operation. ... The tech said something about the superheat and subcool degrees being dependent on ambient temps. Hotter day out and subcool would read higher. But the ..., First, measure the superheat right at the evaporator outlet in the same general location as the TXV bulb and equalizer. In most cases, the superheat at that point should be 5-10 degrees, but refer to the manufacturer's specs when in doubt. In some cases, you will not have a pressure port at the evaporator, so you must rely on a pressure reading ..., High Superheat Can Be Caused By Undercharge Of refrigerant, Excessive Load (Just starting Up The system), Liquid Line Restriction (Like Filter Drier Clogged), Underfeeding Metering Device Low Subcooling Can Be Caused By, Suction Pressure was 80, 5 degrees superheat. Liquid line pressure was 208 @ 4.5 degrees subcooling. 90 degree ODT Makes a loud thump when unit turns on after just a second or so. Suspect thats the reversing valve. I am wondering if the reversing valve is by-passing hot liquid into the low side of the system., High Subcool Low Superheat. Hi I own two wonderful Trane wethertron heat pumps"8 seer". 85 degree day 115 condensing temp. Low side was 65 psig High side 240 psig. 6.5 superheat and 25 degree subcooling. My first assumption was overcharge due to poor winter performance energizing aux heat strips a lot. Right now in cooling I have a 17 …, If the head pressure drops too low due to low ambient conditions, this can come into play and impact the ability of the valve to do its job. Once this is all confirmed, then it is simply a matter of checking the superheat at the end of the evaporator. Most A/C systems will maintain 6-14° of superheat at the evaporator outlet., what is the benefit of having a fixed orifice over a TXV? 1) they're cheaper and 2) easier to replace. can we have an orifice and a heat pump true or false. true. what is superheat? the amount of heat added to a gas above its saturation point. what is subcool? the heat removed from a liquid below its saturation point., Subcool is about what it should be on an R410a system for comfort cooling. Even on a packaged unit. I'm guessing very low load on the evap side. Or an air restriction. Edit: also it's like high of 50F where I live so I may be more focused on Heating season not cooling season., Low charge and liquid line restrictions are the two main caused of a starving evaporator. Low charge is pretty easy to determine as both the high and low side pressures will be low, with high super heat and low subcooling. A liquid line restriction is typically accompanied by a "flooded" condenser, sometimes called "stacking;" in which the high ..., Taking care of your pet’s health is essential, but it can be expensive. Fortunately, there are low cost animal clinics available in many areas that can provide quality care without..., Superheating. In thermodynamics, superheating (sometimes referred to as boiling retardation, or boiling delay) is the phenomenon in which a liquid is heated to a temperature higher than its boiling point, without boiling. This is a so-called metastable state or metastate, where boiling might occur at any time, induced by external or internal ..., Jun 26, 2021 ... Comments18 · Flooded Starts on HVACR Compressors · Copeland Discus - Full Inspection & Teardown · Why Measure Both Superheat and Subcoolin..., Watch on. You can find your target superheat using charts, such as manufacturer-provided ones or universal ones from sources like TruTech Tools or the HVAC School app. You need the outdoor dry-bulb temperature and the indoor wet-bulb temperature; the indoor wet-bulb temperature gives you a better idea of the total indoor load on the coil., Superheat and Subcooling are technical readings in an HVAC that measure the Freon (refrigerant) reading. Superheat measures the Freon boiling point in gas form while subcooling measures the Freon in liquid form below the evaporation level. To calculate superheat and subcooling measurements, a specific Mathematical chart is used, and the process ..., We already know there are benefits to keeping your wardrobe simple. To save money while still giving yourself some flexibility, use the capsule wardrobe strategy when choosing whic..., High superheat, low subcooling—or high subcooling, low superheat—can tell us a story about the system and its needs. Ensuring that a system is fully operational within the appropriate ranges means that you need the right tools to read subcooling and superheat temperatures. , Lowes is proud to offer a military discount program to show appreciation for those who have served or are currently serving in the military. This discount program can be used on el..., Here are some other stats they provided: Static pressure = .46 Suction pressure= 134.7 Liquid pressure = 239 Superheat = 2.4 Subcooling = 3.5 Return temp = 72 Supply temp = 54. Seeing no reaction when manipulating the bulb is a concern. A 3 degree subcool is usually not indicative of a failed txv, could just be low on charge., The term Subcool refers to any temperature that is below the saturation condensing point of the refrigerant. Let's say I have a saturation temperature of eighty degrees and the line temperature is at seventy-seven degrees. We now know that we have a three degree Subcool. The efficiency of your system depends on how much liquid refrigerant is ..., Every 24 hours and 50 minutes, the Earth experiences two high tides and two low tides. High tides occur every 12 hours and 25 minutes. From high tide to low tide is a span of six h...