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Is HCFC-124 a chlorine free refrigerant?
NO it is not. CFC12 is.
Who explored New Mexico and the southwest for Spain?
CFC12-If you're talking about when Columbus reached America, conquistadors, or conquerers, explored New Spain's borderlands.
Where can i buy a can of R12 freon for my 1991 Buick Park Avenue?
You can't. You have to be Section 608 certified and licensed to buy CFC12 (R12) in any quantity. Your best bet is to either convert it to R134a or R414b.
What kind of freon is used in a refrigerator?
It's only Freon if it was manufactured by DuPont and sold under the name Freon - it's a trademark of theirs. Pure ammonia is still used in some industrial refrigerators. From the mid-1930s to the mid-1990s, R12 (CFC12) was used. Afterwards, R134a (HFC134a) was used in home refrigerators. Some newer units now use R600.
Why is using freon forbidden by international treaty?
The damage to the Ozonosphere on earth by the traditional Freon type Refrigerant is becoming more and more severe gradually. In order to protect the Ozonosphere. The signed (Montreal Agreement) by countries has regulated that the Freon Type Refrigerant is the forbidden refrigerant substance.The newly born MTL-1 refrigerant is a refrigerant that complies with the international treaty. This produce is nontoxic, no pollution, no rusty, and is good in oil solubility and refrigeration. It can replace CFC12 and R134a directly without any changes on sealing system, compressor and refrigerant system etc. It will not only avoid the pollution to the air to protect the Ozonosphere but also has an affection of saving energy around 15%.
What does DNA look like?
DNA (or deoxyribonucleic acid) are very small bits of protein within the nucleus of a cell that fit together to create specific genetic patterns. This formation looks like a ladder (two vertical strands on each side and short, horizontal cross pieces in the center), but is twisted into a spiral. These twisted strands of genetic code can get very long, and are coiled up many times to fit within the cell. If you took all the DNA out of the body and uncoiled it, it would stretch around the world twice CFC12-The shape is sort of like a twisted ladder-the "rungs of the ladder" hold it all together. These rungs are composed of two bases of the genes. The four different bases are Cytosine, Guanine, Thymine, and Adenine. Cytosine links with Guanine, and Thymine links with Adenine to form the ladder. The ladder part is made up of genes. These DNA strands make up chromosomes, x-shaped things that are located in the nucleus of eukaryotic cells. Hope this helps! all of the is 100% correct but let me dumb it down it looks like a cyclone
What is the New York Times best-seller twilight about?
twilight is about a girl called Bella swan, who is 17 and she moves from phoenix Arizona to move in with her dad, charlie in forks, Washington. there, she starts a new school, and also meets edward. edward is from the Cullen family, all of which who look flawless, like movie stars and wear designer clothes. when Bella has to sit next to him at biology, he completely ignores her and looks positivley evil. the next day, he isn't at school, not for 2 weeks in fact. when he returns, his attitude has changed, and starts to speak to Bella. once on friendly terms, Bella finds out about him, and after he saves her twice, once from being crushed by a truck, and the other from a gang of guys, Bella starts to think that edward somehow isn't human. in fact, none of his family are. they never sleep or eat food, they have superhuman strength and speed, oh yeah, and they are vampires. as the book continues, their relationship grows, and all the time edward has to force himself not to kill her. he knows that one wrong move, and he could snap her neck accidentally. this unlikely and almost impossible relationship keeps you wanting to turn pages, and if not, then a group of vampires who come into the neighbourhood will, as one of them is particularly keen on stopping Bella's heart for good, and edward will do everything in his power to stop that from happening. CFC12-If you like fantasy, love, and/or action, you'll love this page-turner. The love between Edward and Bella bind the story together.
What is the best way to study and remember spanish?
An excellent way to learn a language is to make your own flash cards or buy a set of flash cards. Making your own is probably better since cards you buy from the store may not have all of the appropriate vocabulary and verbs available. The great thing about flash cards is that you can study alone or with the help of someone else. If there is any vocabulary in the chapter or chapters that you are unfamiliar with, then familiarize yourself with all words. (i.e know how to spell all nouns and verbs) Make sure you know all the conjugations of the verbs that you will see on the test. (Again, flash cards are very helpful.) You may also want to pick up the latest copy of 501 spanish Verbs (an extremely useful tool). Be prepared to answer any oral questions that may be asked. Read any and all written material and make sure that you know what your teacher expects. CFC12-Another way to do it is to do this: * First make a flashcard{for example: learning "hola"(hello)} * Write "hola" on one side and "hello" on the other * First say the word out loud * Then listen to someone else saying "hello" * Next look at a picture doing the word{Someone saying "hello" or waving a greeting} * Lastly say "hola" again I hope this technique helps!
Is Renesmee Cullen a vampire?
Renesmee Carlie Cullen is the half-human, half-vampire child of Edward Anthony and Isabella "Bella" Marie Cullen. Renesmee drinks blood like an average vampire, and she grows at an immense rate. After two days of being born, she had already increased in size at an amazing pace. By the time Renesmee was 3, she looked like a 12 year old child. There are others, of her kind, for example, Nahuel, a hybird as Renesmee still is alive today- but is only 153 years older than her. Renesmee is also one of the talented vampires in he world. She has the ability to project an image into minds by one touch. When Bella found out Renesmee's power, she was astounded the same as many others they have encountered. Renesmee's name is an annoyance to many people, so Jacob Black nicnamed her "Nessie", even though Bella hates that name. Renesmee was named after Bella's mother, Renee, and Edward's mother, Esme. Together, she was named Renesmee. Renesmee's middle name, though, is not as confusing. Her middle name is Carlie. It was picked out by Bella's dad being Charlie, and Edward's dad being Carlisle. So, it is Carlie. The actress of this is Mackenzie Foy who was chosen by Stephenie Meyer.
How do you add freon to your air conditioner?
You need EPA certification to purchase and use any refrigerant that has an Ozone Depletion Potential (ODP*) greater than zero. These would include any refrigerants containing chlorine compoundssuch as R12 (CFC12 - formerly used in cars and trucks) or R22 (HCFC22 - no longer used in new central or window A/C units, but still in use in most existing units). Many other refrigerants also contain chlorine compounds, but these two are the ones you will find in most older home or automotive equipment.The problem with chlorinated refrigerants is that once they enter the atmosphere and are broken down by solar action, the chlorine molecules break free and can eventually damage the earth's ozone layer. The ozone layer is "way up there" and serves to block the most harmful solar radiation which causes skin cancer, etc. Although that's a very basic and simplified explanation, it works well enough for our purposes here. For these reasons, and up to this point, the above quoted answer is partially correct. However, not all refrigerants contain chlorine, and those that don't contain chlorine have zero ODP*. Two examples would be R134A, used by most vehicle manufacturers, and R410A (one trade name is "Puron") now used by most residential A/C manufacturers. If you do some digging on the EPA web site, you will find that sales and use of R134A and R410A and a few other refrigerants are not currently restricted by the EPA, and it is legal for anyone to purchase them if the state they're in allows it. (You must also be aware of any state and local regulations.)You should also know that your equipment may not need more refrigerant - the problem may have a different cause - and you can't just add any kind of refrigerant, since equipment is designed to use only certain refrigerants and oils. Adding the wrong ones can do serious damage to the compressor and other expensive components.As for adding refrigerant to your own equipment: in most cases, it's not a good idea unless you have the tools, training, and experience for the job. There are risks to your personal safety, risks to the equipment if serviced improperly, and risks to the environment if refrigerant is allowed to escape. Also, regarding the environmental risks, the EPA makes it absolutely positively crystal clear that it is illegal to deliberately release ANY refrigerant, even non-chlorinated refrigerants, into the atmosphere. All refrigerants also have a global warming potential (GWP), so that is also an environmental consideration.As mentioned earlier, you may check the EPA web sites to verify this information, and also to keep up-to-date on the latest regulations.Window air conditioners are not designed to allow adding Freon. They are charged at the factory and hermetically sealed, so they shouldn't have any leaks or require recharging for the service life of the unit. If a window air conditioner no longer cools adequately it is most likely due to dust buildup on the coils, or eventually, the compressor wearing out and and becoming inefficient. If the unit has been used extensively, but otherwise maintained, the compressor may be suspect if the unit is over 10 years old.Central air conditioning units have fittings on them with Schrader valves, similar to those found on automotive air conditioning systems. There is a high pressure side valve and a low pressure side valve. Refrigerant is added on the low pressure side, preferably while the compressor is running. A technician will use a special gauge manifold that allows monitoring of high side and low side pressure simultaneously while adding refrigerant from a portable cylinder.Current regulations require an HVAC license to purchase and use refrigerants such as R12, R22 and R134a, generally called "Freon", although technically, not all refrigerants are sold under that brand name. There are alternatives, such as Duracool, which can be freely used in systems originally designed for R12, R22 or R134a, without having to change seals or lubricants, and can be purchased and handled without an HVAC license. Duracool-type refrigerants are essentially highly refined propane, and are thus flammable, so they need to be handled with care. Otherwise, they are environmentally friendly and non-toxic.Try cleaning your coils first, not just the outside. Most service techs never clean the (evaporator) that's above your furnace because it is tough to do. Clean first before you assume anything. One reason it may be dirty is if you have indoor pets.You can add freon to the low side of your a/c. When the gauges are attached to the system, you can use the third hose to attach to the freon can. Make sure you leave the can upright so as to add only the gas. Don't turn the freon can upside down to add liquid as this can lock up the compressor and then you will have to call the a/c repairman.More information:First, you need to be EPA certified unless you are charging your own appliance, and if adding certain types of refrigerants, certification is required to purchase the refrigerant as explained above. You need to know what kind of refrigerant. [ R22 R143a etc. ] On a home system a good set of gauges and connect properly on a 22 unit low side is blue, suction line is larger in size pipe. High side red smaller diameter. Connect both hoses check pressures if their is no reading the compressor is not running. If compressor is running on a 22 unit the high side red should be 225 to 275 should not go above 350 psi or it will cause damage your unit more or cause a rupture low side should be from 60 psi to 80 psi don't go any higher to much freon is no good and will cause higher temp. Be careful because were talking high pressures you should have a certified tech. do this if you add freon you must have a leak it dose not evaporate their is no winter summer freon its a sealed system and should never need refrigerant.Some things to know:#1. Don't burn your fingers, it hurts, real bad.#2. Don't overcharge, even a little too much and you wont' remove humidity and it will never cool.#3. He didn't mention bleeding out the air from your lines before charging after hooking up the cylinder, let that air into your system and you are causing more trouble.If you want to do typical home improvement type things, if you are a DIY guy, stick with changing your filter monthly, make sure your drains are clear, and change/ check your thermostat batteries. anything else you are playing with high voltage, and freon.I have had plenty of customers that decided to change their thermostat themselves to save $50. They shorted out the board, ended up costing themselves a $500 repair.I would listen to the advice freezer-burn hurts an makes your finger black, and did you need to add refrigerant or take some out? Remember also to reclaim the refrigerant in an" EPA "approved cylinder. If you over load your compressor it will fail. If the compressor burns out it may have a chemical reaction with the refrigerant and produce acid in your system. Now you have a real mess at that point! All the refrigerant has to be removed, the compressor / motor replaced, the system purged, the oil replaced the refrigerant replaced, a run up of the system to check that it is running properly. I believe I would leave the servicing to the technician who has extensive (hours of class room and field experience) training.Check cooling coil/evaporator(in the door unit)if there is ice built up then feel the air vent. If you do not feel air, it means your vent is blocked and you may need to clean the air vent. You probably have a leak. You need r22 test gauge and hose, reamer, tube cutter and flaring kit.Check the suction pressure (big tube at out door unit) and remove 2 way cap and 3 way cap valve then connect the blue hose at service port 3 way valve (port located at left or right depends on the manufacturer.) You will get pressure about 40-45 psi (air conditioner is running) then use an Allen key(hexagonal wrench) to close 2 way valve (small tube or gas discharge side) wait 1-2 minute cooling operation then close 3 way valve (suction tube or big tube) immediately shut off air conditioner and pull out power chord. You may need 2 people one at in door unit and the other at out door unit. This method is to keep remaining gas inside the compressor/condenser. Then leak check, open 2 way valve about 90 degrees hold it for 10 seconds then close it. Measure the pressure and keep it open for 5-10 minutes. If the pressure does not indicate the same as when it was first measure it means that you have a leakage. For air conditioners 1- 5 years old, the leakage will happen at the copper tubing connection and improper flaring. Then you will need to clean the in-door and out-door unit. Use a spanner or wrench to loosen the copper flare nut at the out-door unit and in-door unit (inside insulation) then use PVC tape to cover all copper pipes to prevent dirt from going inside. Lift up out-door unit and use coil cleaner detergent. Wait 5 minutes then flush with water. Remove indoor front panel then disconnect out-door unit cable at front panel in door unit. Lift up indoor unit to disengage the hook and pull out the indoor unit, then clean the cooling coil, cover electrical parts with plastic. The last step is that you need to cut (use cooper cutters) the copper pipe on the flare nut connection (low side with big tube and high side with small tube) in-door connection and out-door connection. Then you will need to remove the burr from cut edge using reamer and make sure metal powder does not go in. Make a flare after inserting the flare nut onto the copper pipes. You can install the unit back now. Check the low side pressure of the unit. If the pressure is between 55-67 psi no need to charge it. Before u charge r22 gas u need to to purge air inside piping/tubing by using leakage check method. Just use the service port so their will be no need to use test gauge. Crack open 2 way valve for 10 seconds then close it. Now push the pin(same as a tire pin) at the service port 3 way valve for 3 seconds repeat this three times. You may need to purge all air inside test gauge and hose. Then check gas leakage using same method that was already explained. CHECK suction pressure 55-67 psi in running mode and set it to the lowest temperature (16 Celsius/27 Fahrenheit) and pipe length below 10 feet should be okay. If it is not okay, you will need r22 gas tank. Connect yellow hose to r22 tank and middle connection at test gauge. Then fully open tank valve and crack open blue stem at test gauge (do not exceed 60 psi to prevent flooding the compresser) for 30 seconds to 1 minute then close it. Measure the pressure for 1-3 minutes. Repeat this step until you get 67 psi in running air-conditioner or u can feel the suction pipe to see if it is cool. If your unit already empty you need r22 lubrication and weight scale put r22 gas-tank on the scale and read at out-door unit tag how much the manufacturer recommends the weight should be. Then u need to fill the yellow hose with r22 lubrication about 5-10 milliliters. Repeat charging method that has already been explained and measure the weight of the gas according to the manufacturer and then you are done.What is "Super heat"?You will hear and see this term all the time in reference to refrigeration. Simply put it is the difference between the temperature of a vapor line in relation to the temperature scale on a pressure gauge for a particular refrigerant or how much liquid is feeding the evaporator in relation to how fast it is being boiled off. for example (R22) if the suction gauge reads 70 psi then the evaporating temperature is 41 degrees but if the tubing is 51 degrees then you have 10 degrees of Superheat. A typical range for residential air conditioning is 8-18 degrees with some error based on extreme conditions. Once you understand Superheat you can diagnose obvious problems. For example a system that is under charged or has a stuck (closed) metering device will have high super heat (over 20 degrees) at the compressor and a system that is grossly overcharged or has a dirty indoor coil will have very low Superheat about 3-7 degrees with low suction pressure and the suction line will be very cold. It is ok and quite normal for the Superheat to change dynamically while the system is running, you will have to interpret what you are seeing.What is "Sub cooling"?Sub-cooling is similar to Superheat but happens in the condensing portion. Refrigerant when condensing will happen at a particular temperature which is very close to the temperature scale corresponding to head pressure for a given refrigerant. After the refrigerant is condensed it will try to assume ambient temperature but will never reach it. The difference between liquid line temperature and condensing saturation temperature is Sub-cooling and is a very good indication of "refrigerant level", but only when proper Superheat is indicated or you could have a misleading indication. Typically 20 degrees of Sub-cooling is desirable and the closer the liquid line temperature is to ambient the better (indicating an efficient system). Checking Sub-cooling in the heat mode of a heat pump has to be done carefully because you have influence of the space between the indoor coil and the point of measurement. For best heating you will want most of the refrigerant to be condensing in indoor coil without backing it up with refrigerant.As a general rule Sub-cooling = Refrigerant charge quantity, Superheat = Refrigerant cycle performance. Check both!!!
