Too Much Oil In Refrigeration Compressor

Oil Maintanence Resolution: Below is a list of the different oil types for the different refrigerants in our units. However, there's often enough pressure left in the system to engage the compressor for short periods. Only hire qualified HVAC professionals Because a leaking refrigerant line is a delicate issue, one that has been fixed the wrong way can also result in compressor failure. This means that there is still some of the refrigeration process going on inside the tubing, and there will be a build-up of frost or ice on the exposed section. There are 3,082 oil free refrigeration compressor suppliers, mainly located in Asia. com Blogs Car Info Our Show Mechanics Files Vehicle Donation A/C question: how much oil to add on a recharge?. Also check if oil has leaked. This would vary with the different models. A new compressor is generally dry. Due to the design of your air conditioning system, too much oil can clog the system and too little oil will lead to premature failure of the compressor. Charge weights: Repeat Start low on % guess of weight. Electrical problems. Too little will result in premature compressor failure, so this is tight balancing act. But there is no way to tell how much for sure. Don’t worry if you’re putting it on too thick or thin, just so long as every part of it is covered. In an absorption refrigerator, a suitable combination of refrigerant and absorbent is used. A rep for the company that supplied the compressor said that it was not filled with oil but merely enough to wet the parts. While the compressor will continue to pump the same “volume” of refrigerant, the mass flow (in lbs/min) will decrease, reducing its effective pumping capacity. You should always attempt to verify the information with your vehicle manual or information provided on the underhood stick, sometimes also located on the top of the accumulator. It says nett oil pressure is good between 20-60 psi. I found an R134a Oil Spec Chart that shows Porsche's Nippondenso compressor as using an oil viscosity of 46. Install half oil charge into the compressor and the remainder throughout the system. 2) Drain the oil from the replacement compressor and refill. Use QwikShot® refrigerant & oil pretreatment Anytime you perform a HCFC to HFC conversion Flush all components (line set) that are being reused Only use a flushing agent that also removes acid, moisture and oil like Qwik System Flush® 17. When you’re finished with an egg, put it in the egg carton, small pointed side down. Soft rolls of large diameter copper pipe (tubing) simply can't fit in small diameter boxes and would thus cost a tremendous amount for shipping. At any normal temperature, the vapor pressure of the oil in a refrigeration system is much lower than the vapor pressure of the refrigerant, and during shut down periods, as a result of the miscibility of refrigerant in oil, refrigerant in contact with the surface of an oil pool is absorbed into. Charging pump and simple filling. Air compressor oil-fill sight glass. Too much oil in the system can puddle in the condenser and obstruct the flow of refrigerant causing a drop in cooling performance. A proper oil charge is also needed. Having constructed one now, I can say from experience that in theory it's a simple idea, but to make something that's going be safe, robust and will last lands a few more. Make certain you do not add too much coolant. Compressors themselves may also develop a refrigerant leak, which usually necessitates their replacement. It should be one that can be used with ordinary standard lubricating oils where possible, avoiding glycerine,or similar semilubricants which often lead to excessive wear on the moving parts. The evaporator is attached to an air handling mechanism or a forced air furnace. Do you think it is low on oil? How do I know if it has too much or not enough oil?. b)dirty scale traps. Too much oil will increase discharge air temperature. NOTE! Refrigerant and oil capacity guides are based on data provided by sources such as AllData and Mitchell. Like vapor recovery compressors, casinghead compressors operate with low suction pressures, high compression ratios, and low gas throughput rates. So, make sure you check your new compressor, even if the manufacturer says it already comes with oil in it. Basic Air Conditioning Piping Recommendations – Suction Lines – Part 2 Posted on June 19, 2013 by yorkcentraltechtalk Okay — hopefully I’ve made my point that the two factors — suction line pressure loss and suction line velocity –are the most important parts of sizing suction lines for any air conditioning system — either. The objective of this paper was to use data from part-load operation ( Widell and Eikevik, 2008 ) in a model that provided a more optimal operation of the compressor system, both with and without a. the compressor back and forth a few times to help the oil reach the oil drain hole. Too much refrigerant in the system will result in liquid still evaporating back to a gas past the end of the evaporator and inside the tubing going back to the compressor. then levels out, High side pressure about 150-170psi. The valve may be fine, but if you had compressor issues it may be plugged with debris. You certainly can add your own refrigerant, but be careful to not put too much in. Be sure there is the correct total amount of oil, 160 +/- 20 cc or 9. At the end of the discharge process in the screw, no clearance volume remains. You should also note if your new compressor came with any oil already in it. Motors utilized in ammonia refrigeration system compressors are the open drive type and not hermetic due to ammonias incompatibility with copper. "7/8 inches of oil on the stick is equivalent to 11 ounces". Oil in the Refrigeration System. stances is using the wrong oil when servicing the compressor and other equipment. This type of synthetic lubricant is among the first developed for commercial and industrial use, and PAG oil comes in different viscosities for specialty applications. Too much moisture in systems with evaporating temperatures below 0°C could form ice which. If not a sight glass like the one in the photo above, then the cap of your oil fill port may also contain a dipstick. The actual amount of cooling a chiller performs depends on how much refrigerant (cfm) it moves through the compressor. Once you install the new compressor, have the system evacuated again to a complete vacuum, then add the correct amount of refrigerant along with the correct amount of oil for your car. If leak tracer is not available, brush soap water on the suspected leak and look for bubbles. It will run extreme high pressures and can damage the compressor or blow a line. So, make sure you check your new compressor, even if the manufacturer says it already comes with oil in it. Put oil back into compressor. Charge weights: Repeat Start low on % guess of weight. Here’s how it happens and some suggestions on how to solve and even prevent the problem The High Cost of Ignoring Chiller Oil Buildup BY MARK KEY BY MARK KEY O il entrained in a chiller’s refrigerant charge unnecessarily costs owners. Even if a compressor is still turning, it may have to be replaced if it is leaking, making excessive noise or not working correctly. In some cases, it would be more cost effective to replace the whole system. I would check on the type of oil also, all PAG oils are not the same. Three LED flashes indicate excessive torque is required to start compressor. Since it is not possible to see the oil level, make an estimate (the refrigeration shop should be able to help here) and, with a tube connected to the inlet, start the compressor and suck some oil into the unit. Once you install the new compressor, have the system evacuated again to a complete vacuum, then add the correct amount of refrigerant along with the correct amount of oil for your car. to fix your ac. So, if you don’t know how much oil was drained from the compressor, then you won’t know how much remains in the system, and then you will not know how much to add back. Use the recommended refrigerant oil, and never mix two different types of oil together. Hey guys, My beater is a 98 Civic and the A/C wasn't blowing as cool as usual so I tried one of those DIY kits from Autozone that has r134a refrigerant + oil to help seal leaks. CAUTION: ND-8 PAG refrigerant oil is used in the Denso 5SE12C A/C compressor. Too much dirt in the oil will damage the screw element. For example, the oil in a scroll compressor provides a seal between the fixed scroll and orbiting scroll, maintaining a boundary between the low pressure gas and the high pressure gas (figure 2). for the compressor vitality - a high level of moisture in the AC system can cause corrosion and reduce compressor lubrication significantly. There are 3,082 oil free refrigeration compressor suppliers, mainly located in Asia. The compressor however will get very hot. decreasing its freezing point, however too much water will cause the oil to turn to sludge, therefore maintaining a water content of ≤ 0. The oil is now again injected in the screw element to do its job again. This is also required to be described to the user. The compressor clutch circuit is opened if the pressure in the system drops too low. I haven't read further into the instructable, But also drain as much of the refrigerant oil as possible, and replace it with air-compressor oil, which will not foam, and cannot be contaminated like the refrigerant oil does. Too much oil will cause as many issues as too little. that was in addition to the oil in cans because you said your system dry so I am assuming dry of oil too. then I followed with a 13oz can of 134a refrigerant. The plug connected to the mains will also heat up abnormally or may even melt the wiring due to the extra current it trie. This will keep oil from returning to the compressor and will normally show up as too low a reading on the low pressure gauge. The line should be coiled horizontally rather than vertically. For Oil Refrigerant Capacity for Honda Civic 2006. Charge A/C system with correct quantity of refrigerant oil (para. When I attach my guages large amounts of thich oily foam come out. The oil filter has an internal by-pass valve which opens when the pressure difference over the filter becomes too high (when the filter is vey dirty or when the oil is still very cold). Poor line conditions can cause higher pressure drop or even restrict refrigerant flow. Check to pressures to know whether or not the system has been overcharged. POE Oil, or Poly Olester Oil, is a synthetic oil that was designed to meet the needs of the changing refrigeration industry. If refrigerant oil did the same thing—that is, if it remained in the. With few exceptions, all compressors that are lubricated with oil will discharge oil into the gas stream. The oil travels with the refrigerant and back to the compressor. Factory outlines correct level for original compressor in the service manual, but in your case, you will have to get Sanden to tell you how much oil it needs. A current draw of 1. Many things can cause oil carry-over in compressed air systems. A complete system requires 8 oz of PAG oil. System under charged or too much oil. " Where are you referencing the Grasso design floor of 51 psi nett oil differential pressure from? On our compressor "log" sheets the company recently added a "normal range" key. Check the pump manufacturer's specs for the recommended viscosity of refrigerant OIL to use with that pump and check the vehicle manufacture's specs as to how much refrigerant OIL is used in the system and how much is attributable to the receiver / drier and only add the amount attributable to the receiver / drier back into the system. Oil flooding is indicated by poor condensing action, causing increased head pressure and high pressure on the low side. The oil viscosity is recommended at 8 mm2 /s at any temperature. The evaporator is attached to an air handling mechanism or a forced air furnace. Even small amounts of oil with large amounts of additives can, over time, cre-ate big problems in refrigeration systems. Also, the type that comes in the "ready to charge" cans is pretty generic and more than likely not the correct viscosity for your system. Adding too much refrigerant can diminish. Even if a compressor is still turning, it may have to be replaced if it is leaking, making excessive noise or not working correctly. A blockage in the system. Available in multiple varieties to suit different A/C system specifications, ACDelco Air Conditioning Compressor Oils are the solution to your compressor oil problems. Or better yet, Total system oil capacity. We wish we could. This would be an indication that the system has lost some or all of its refrigerant charge. Requirements of Compressor Oil: Refrigeration system is a clean, sealed and enclosed environment. END OF TESTING! AIR CONDITIONER COMPRESSOR NOTE Before beginning compressor troubleshooting or inspection procedures, always clean away oil, grease, dirt, and refrigerant residue. Thus, the solubility in R290 rotary compressors has a greater impact on the. Too much oil in the system can puddle in the condenser and obstruct the flow of refrigerant causing a drop in cooling performance. Ford Mustang V6 2005-2014: How to Recharge A/C. If the running time is too short, more of the frozen oil will be deposited in the system and cannot be returned to the compressor. with two cans of refrigerant R-134a, 12 oz. In addition to that, I am supposed to add additional oil depending on the components replaced. AIR DRYER INSTRUCTION MANUAL 3 condensed moisture, oil and solids are separated from the compressed air and discharged from the system by an automatic condensate drain trap. The oil will not circulate without refrigerant. This is a result of the type of oil protection that is required for. Super-Heat – Gas refrigerant at the evaporator output (and suction input to the compressor) has been heated above the critical liquid/gas saturation temperature – refrigerant is all gas. Do not overcharge and do not add too much oil or it may cause damage. " Where are you referencing the Grasso design floor of 51 psi nett oil differential pressure from? On our compressor "log" sheets the company recently added a "normal range" key. Finding refrigerant leaks on the compressor or lines means that the compressor is working harder than expected. Since the oil spreads out through the refrigerant there is no way to measure how much oil is in your system. I try to add it more slowly, but it still tops off quickly and then I'm back to cleaning up overflows and wondering how much oil I lost relative to how much is required to be in the compressor. Most DIY "recharge cans" that contain oil you buy at FLAPS say on the back in fine print "not for use on Hybrid cars". Clean Oil in a system insulates the evaporator and the condenser, thus reducing efficiency. "7/8 inches of oil on the stick is equivalent to 11 ounces". In addition to that, I am supposed to add additional oil depending on the components replaced. damage the expansion valve D. Charging pump and simple filling. Do not put oil since the compressor already has enough oil in it. To overcome this limitation, restrict the maximum amount of HGBP to a quantity that maintains sufficient refrigerant velocity for oil entrainment. refrigerant fill should be good and low fill should not cause too high torque on the compressor anyway. the oil actually is moved by the refrigerant and moves thru the entire system. Best thing to do is dump the factory fill oil out of the used compressor or new compressor and install fresh out of the can (sealed) genuine ford oil, and get the compressor installed in 15 minutes and sealed and in a vacuum or top with nitrogen until you can get it to a shop to do the vacuum. If the Freon leaks out so does the lubrication. For a new compressor, you should mix up one small can of oil, 4 oz. Refrigerator compressor oil level - Compressor oil changing pump for refrigerator. Cooling coil ice & frost formation diagnosis & cure in the air conditioner or heat pump; refrigerant piping line frost causes & remedies. If you're using a rebuilt compressor from Deere, it should have sufficient oil in it for the system to work fine, at least they always have for me. The line should be coiled horizontally rather than vertically. The filter could be blocked. 4 Fluke Corporation Troubleshooting HVAC/R systems using refrigerant superheat and subcooling Measuring liquid line temperature with a DMM and a pipe clamp. A quarter cup of mineral oil should easily do 4 to 6 dozen. The quantities listed in this link are for the entire system, not just the compressor. Is that mean 130 gr will be amount of our refrigerant system or Do I have to determine how much oil should be in the refrigerant system ?. When charging the system I installed five ounces of oil in combination with just under 2 pounds of refrigerant as recommended by the factory. in controlling the operation of the condenser, the operator should take into account that most likely the heat transfer rate btu/per sq ft per second in the condenser will:. Factory outlines correct level for original compressor in the service manual, but in your case, you will have to get Sanden to tell you how much oil it needs. You might get to hear what a breaking rod sounds like. Its possible to get too much oil in the system and it can do damage. It's just a pain. Units need oil to work properly for sure, but an oil leak is also a refrigerant leak. Refrigerant is a gas or light liquid in your air conditioning system so if you added too much oil it is possible the compressor is struggling to move that much oil. If the control starts operating as a result of malfunction in the compressor lubricating system, a lamp and/or a hooter (visibleaudible alarm) will be activated. GM states that the V5 compressor should be used with special non foaming oil GM PN. Too much oil and/or way-overfilled refrigerant can get a liquid slug into the compressor and kill it pretty fast (which is also why I turned over the compressor by hand earlier). with the same amount that was drained from the original [20 m (0. Between the 2 Priuses in Florida and the label under the hood on the GM about the oil required for the Mitsubishi high voltage compressor, looks like universal ester oil may be OK. Fourth, if a compressor is removed, some oil will be in the compressor and some will be in the system. If I'm to. Reinstall the new compressor into the truck. Again, the lines should allow oil to flow back to the condensing unit. Is that mean 130 gr will be amount of our refrigerant system or Do I have to determine how much oil should be in the refrigerant system ?. The oil charge. Note adding ref. Most people jump to the conclusion that there is a mechanical rotor lock up inside compressor and this is a mistake on Danfoss BD compressors. A/C PRO is the easy DIY car A/C repair that saves time & money. Compressor may not be working or the system may have a leak and has lost the entire refrigerant charge. The oil travels with the refrigerant and back to the compressor. If it's adjusted too high, the compressor is going to cycle off before the system reaches the effective/efficient pressure differential in the system that the refrigerant relies upon to operate at its most effective/efficient cooling capacity, right?. i added oil too much oil and need to remove some of it. Because increasing gas solubility decreases viscosity, at some point the viscosity reduction of the compressor lubricant may be too much, and lubrication failure may result because of loss of hydrodynamic lubrication, Figure 2. The extent to which these dissolve in the compressor oil varies for the different components. So manifold purchase if calculated in terms of money is already utilized, however all friends carried in their own can of freon and I topped it up for free, and they took back the left over gas for. Bearing types When reviewing oil analysis re-sults it is very important to know which compressor the oil sample has been taken from. Topping off the A/C system annually without adding lubricant assures a slow compressor death. Every compressor has a site glass which is used to determine the level of oil in the compressor. I have a 99 Chevy (mfg date 10-29-98) K1500 truck, extended cab, 4x4, 5. 8oz which is half of 5. Answer: There's a small leak of refrigerant (R-134a) in the system, and you lost most of the charge over the winter months. Since it is not possible to see the oil level, make an estimate (the refrigeration shop should be able to help here) and, with a tube connected to the inlet, start the compressor and suck some oil into the unit. I flushed the system with an air gun and got quite a bit of oil out of the condenser, evaporator, and compressor. b)expansion valve and evaporator coils. I talking about the compressor crankcase filling up with oil!! Large amounts of oil!!! How is it possible to have too much refrigeration oil in the compressor? It should be a simple procedure. In addition to that, I am supposed to add additional oil depending on the components replaced. Subcooling on systems that use a thermostatic expansion valve (TXV) should be approximately 10F to 18F. The 220 ml is for a new compressor in a new system. A small amount of oil is combined with the Freon gas to lubricate the compressor. The oil amount drained from the old compressor (B) is 50 cm³. It had no oil in it so I added 1 oz. Lastly, the proper evacuation, leak. I think I may have too much oil in the system. This occurs when the TXV is feeding the evaporator with too much of the refrigerant, more than it can evaporate, and thus harming the compressor eventually as the liquid refrigerant is going back to the compressor. • Excessive amperage indicates that too much refrigerant is entering the compressor • Turning the adjusting screw into the valve reduces the refrigerant pressure returning to the compressor • Turning the screw out of the valve increases the refrigerant pressure returning to the compressor. Refrigerant will condense in any cold part of a system during the off cycle. A misaligned control settings, make sure the air damper and cold control have not been bumped and are out of normal settings. I was using it the other day blowing out a hay baler and when I got done there was oil blowing out the oil filler vent. Line Coiled Horizontally and Refrigerant Boiling Points. 6L - Answered by a verified Ford Mechanic We use cookies to give you the best possible experience on our website. Refrigerant charging is dependant on the type. Too much oil in system. This ensures proper lubrica-tion of the compressor. Charge the system with [Front only: 600±25g (21. The coldest parts of the system are the evaporator and suction line. The refrigerant oil is suspended in the Freon and too much oil will clog the components and be detrimental to its operation. Then wipe the oil off that came out. i added oil too much oil and need to remove some of it. Too little oil will damage the compressor. If volume is greater than 5 oz, replace with 5 oz. Proper oil levels is important to keep your air compressor working efficiently and so you should make it a priority to check your oil levels regularly and know how much oil your. If you add too much AC oil. Faulty Evaporator Coils. Normally, the velocity of the refrigerant pushes the oil back to the compressor. First, it may stem from an excessive amount of compressor oil in the system. Since the oil spreads out through the refrigerant there is no way to measure how much oil is in your system. Our comprehensive product portfolio includes valves, sensors, electronics, pumps, heat exchangers and compressors, including our pioneering oil free centrifugal Danfoss Turbocor ® compressor. Yet another problem with a neutralization reaction is that the neutralizing materials are solids and must be dissolved into a liquid solvent carrier or. Refrigerant compressor runs for the extended period of time. On this page of Costimates. Re: Air-con Refrigerant: How much to fill? Yes, My car issues were solved by I, me, myself, I mean, i topped up mine as well many cars of friends. If the pressure is too low add refrigerant but you say it works fine, i. Be sure there is the correct total amount of oil, 160 +/- 20 cc or 9. Great Deals on all Dixie Narco DNC1203 Refrigeration Compressor Deck Right Now To Provide A High End Really feel To Your House!, Fill in the rest of the space with stunning Dixie Narco DNC1203 Refrigeration Compressor Deck, You're going to get additional information about Dixie Narco DNC1203 Refrigeration Compressor Deck, Browse a wide selection of Dixie Narco DNC1203 Refrigeration Compressor. Oil streaks in the sight glass usually indicate a low charge and that the compressor is pumping oil from its pump. Refrigerant compressor runs for the extended period of time. This would cause a low oil level in the compressor’s crankcase sight glass. A leak of 1 kg of refrigerant causes approximately the same environmental damage as driving a van 10,000 miles. Check actual flow through the dryer. That's the proper way of doing things and not risking compressor seizure due to "too much" or "too little" of anything. All those vehicles use the same ref. A larger analysis showed that much could be gained by integrating refrigeration systems with heating systems (Gjøvåg, 2004, Aprea et al. The total system oil capacity for many late model passenger car A/C systems is only about 4 ounces (120 ml). Damage to condensing coils. Honda Fit: A/C Refrigerant Oil Replacement (With A/C) Recommended PAG oil: SP-10 P/N 38897-P13-A01AH: 120 mL (4 fl·oz) It is important to have the correct amount of refrigerant oil in the A/C system to ensure proper lubrication of the A/C compressor. This can cause compressor frosting and noise, higher pressures, and low superheat (less refrigerant evaporation than needed). The oil, which is used to lubricate the compressor, travels with the refrigerant through the system. So manifold purchase if calculated in terms of money is already utilized, however all friends carried in their own can of freon and I topped it up for free, and they took back the left over gas for. Most DIY "recharge cans" that contain oil you buy at FLAPS say on the back in fine print "not for use on Hybrid cars". Check system refrigerant charge. You probably already know that the vacuum ports are not isolated from the oil supply like the pressure port. Introduction. Relationship Between Refrigeration Oil And Compressor 1. Page 87-90 says "Refrigerant in compressor". HVAC-02, Air Conditioning Troubleshooting and Repair Introduction Since I'm constantly receiving questions on 944 air conditioning systems, I figured it's time to come up with come helpful troubleshooting tips. The compressor runs fine, but I only tried it for a few seconds for fear of destruction. It is also crucial to ensure the correct filling quantities. The longer the compressor ran, the more oil returned. Check for too much oil in refrigerant. It is designed to gauge how much you know. The other link said 1. with the same amount that was drained from the original [20 m (0. Vacuum Pumps Common Problems and Troubleshooting Vacuum pumps and systems are one of the widely used equipment in process plants. Soft rolls of large diameter copper pipe (tubing) simply can't fit in small diameter boxes and would thus cost a tremendous amount for shipping. If you are replacing the dryer, good idea, it needs an ounce of oil added to the new one before you install it. The refrigerant oil should be disposed of in the same container as engine coolant. Although Copeland Scroll refrigeration compressors have more oil capacity (140 oz. If the control starts operating as a result of malfunction in the compressor lubricating system, a lamp and/or a hooter (visibleaudible alarm) will be activated. This will cause the float to rise too often because of increased levels of an oil and liquid refrigerant mixture in the bottom of the separator. The compressor is protected from overloads by current-operated circuit breakers. Dear Angie: Is it possible for an HVAC technician to overfill an air conditioning system with too much refrigerant (my system uses R-22)? For example, if the system needs two pounds, is it possible for the technician to force in, say, three or four pounds? If so, can this damage the A/C system or cause it to malfunction and stop cooling?. Straight 10 or 20 feet lengths simply costs too much to ship. Find the panel on the side of the compressor; it’s held by one or two screws. condenser inlet is top tube at condenser. Without oil the compressor will lock up. since you had so much debris in your system,i would add a suction line filter to protect the new compressor. By all means, don't let the engine turn the compressor without any oil inside it. (Note that this is a scroll, so you don't have to worry about pumping liquid (too much oil in the compressor to start with). Proper oil levels is important to keep your air compressor working efficiently and so you should make it a priority to check your oil levels regularly and know how much oil your. I added oil and I pulled a vacuum for about a hour and went to fill my ac system and both the high and lowside stay at the same pressure while the compressor is engaged. SUCTION PRESSURE TOO LOW OR TOO HIGH. Re: Air-con Refrigerant: How much to fill? Yes, My car issues were solved by I, me, myself, I mean, i topped up mine as well many cars of friends. Adding oil to the system is similar to adding refrigerant. In many cases, when a system is topped off or recharged with refrigerant the oil is either omitted or completely forgotten about. Sometimes all they need is a full charge of refrigerant. I put 4 oz in the compressor, 2 oz in the evaporator and 2 oz in the condensor. This may lead to damage of the movable parts in the compressor. Drain oil, refill with oil of proper viscosity. After 30 minutes of pulling vacuum things tend to get a little warm. Specs are for total system capacities. Therefore, the oil behavior should be observed. If it's adjusted too high, the compressor is going to cycle off before the system reaches the effective/efficient pressure differential in the system that the refrigerant relies upon to operate at its most effective/efficient cooling capacity, right?. Missing fins derogate condenser efficiency. Too much oil decreases cooling because it coats the interior fins and blocks heat transfer. plus account for compressor too. Not enough, bye bye compressor, too much, the refrigerant can't move proper and there will be an extra strain on the compressor. The main danger with too much refrigerant inside an air conditioner is that it can damage to the compressor. more refrigerant without high-pressure cut-out. Pump down, remove restriction, examine and clean screens. The extra refrigerant can also flood the compressor and damage its mechanical components. New purgers may be just the ticket to consider on your next chiller service call, to protect customers' valuable chillers from the dangers of contaminants. Due This refrigerant will also dilute the lubricating oil in the compressor sump. I have many lubricants here, motor oil, 2-stroke oil, bike chain oil, etc. Honda has issued a service bulletin to address Honda oil consumption problems on the following vehicles all with the V6 engine: 2008-11 Accords and Odyssey minivans 2009-11 Pilot SUVs and 2010-11 Accord Crosstour crossover models. Effects of too much refrigerant in the system - overcharging, over-metering, or other high refrigerant pressure situations: normally we want the low side pressure to be as low as possible for refrigeration systems. If you're using a rebuilt compressor from Deere, it should have sufficient oil in it for the system to work fine, at least they always have for me. Flushing can also be used to remove excess oil from the system (too much oil can cause cooling problems). This simple fix recharges the R-134a (freon), stop leaks & gets your A/C cold again. g If compressor has 130 gr. I flushed the system, so I needed to add a total of 10 to 12 fluid ounces of oil. It should be one that can be used with ordinary standard lubricating oils where possible, avoiding glycerine,or similar semilubricants which often lead to excessive wear on the moving parts. All that's needed is a 110volt refrigerator or freezer. Too much refrigerant dissolved in oil; Remedy. My system took 8oz of Pag oil. I talking about the compressor crankcase filling up with oil!! Large amounts of oil!!! How is it possible to have too much refrigeration oil in the compressor? It should be a simple procedure. Often the compressor discharge is routed to either a booster or flash gas compressor or to a low-pressure gathering system. Is there too much refrigerant in the system? Can I release some?. welding residue, the reaction between refrigerant and oil, etc. Now in liquid form at high pressure, the refrigerant. Refrigerant compressor runs for the extended period of time. A low oil level can starve the compressor for oil and lead to compressor failure. That's the proper way of doing things and not risking compressor seizure due to "too much" or "too little" of anything. The most obvious symptom that a vehicle needs to be recharged is that there will be a noticeable loss in the overall cooling capability of the AC system. The oil is less likely to migrate back and the lower discharge pressures mean a less aggressive pump back of what ever oil did return. They confirmed that what matters is the total quantity of oil in the system, and not where you put it. • Always use the correct compressor oil for your air conditioning system. This ensures proper lubrica-tion of the compressor. b : What are the consequences of oil presence in the refrigeration system ? All the oil does not stay in the compressor cranckase and a part is brought into the refrigeration system: During stages of start-up of the compressor, due to the sudden evaporation of the refrigerant dissolved in the oil ; By the piston rings in piston compressors; By. I haven't read further into the instructable, But also drain as much of the refrigerant oil as possible, and replace it with air-compressor oil, which will not foam, and cannot be contaminated like the refrigerant oil does. Charging pump and simple filling. While the compressor will continue to pump the same “volume” of refrigerant, the mass flow (in lbs/min) will decrease, reducing its effective pumping capacity. Check for refrigerant shortage. Table 1 shows how many cfm of refrigerant are required per ton of cooling for the popular refrigerants. I recently replaced the compressor, expansion valve and drier on my 1997 Sebring (Sanden TRS090 compressor). There needs to be a full charge of refrigerant oil in the system, not too little, or too much. pressure sensor took about 20 min to get off too. If there is oil in the condenser, evaporator, lines you need to remove oil from that 220ml. Some DIYers then hotwire the low pressure switch to force the compressor clutch to engage while they recharge. , and the pressure gauge shows a reading that corresponds to the room temperature. 4% is acceptable. Drain that oil into a measuring cup- subtract from total. If you were asked if your technicians were overcharging your customers, you might interpret that as an issue pertaining to the customer's repair bill. Missing fins derogate condenser efficiency. You know that.