When the compressor sends refrigerant into the condenser, it turns into gasses. The condenser is the component that converts gas into cooled liquid. It also works like a radiator and can take advantage of the air. Air is drawn from outside the car (or inside if the ventilation is set to recirc), through the radiator and condenser, and is blown over the evaporator (a type of radiator) by the ventilation fan and into the car’s interior. To know about the ac compressor and how it works to cool the interior of your car, go to the engine compartment, and you will see where the ac compressor … Your email address will not be published. Haynes on YouTube: new Kia Sorento videos, The best car videos on YouTube from Haynes. Your vehicle’s compressor, powered by the serpentine belt, compresses the refrigerant into a liquid, putting it into a high-pressure state. After absorbing heat from the air, the air start was cooling. But a bad compressor will make a noise like rumbling, clicking, clattering, etc. The compressor, like in your IC engine-powered car, pushes the refrigerant through the chilling unit and cools the air before reaching the AC vent. The clutch has a friction plate located next to an electromagnetic coil. When the cars cabin temperature is high, it increases its refrigeration capacity until the desired temperature is reached. When the compressor clutch is engaged, a current move through the electromagnetic coil. The temperature might be at least 32 degrees Fahrenheit which helps the liquid refrigerant to boil. It sits on the crank side of the vehicle. Sometimes, a problem occurs in the ac system, and we have to repair it. However, it’s important to make sure there aren’t any leaks from seals, gaskets or the compressor itself before it’s refilled, or you’ll be wasting your money. The refrigerant then flows through to the compressor, which pumps the refrigerant to the condensor as a vapour before it turns into a liquid again. Required fields are marked *. Once the gas is inside the pump, the compressor lives up to its name. This is essentially how air conditioners work. You can see AC diagrams to understand the AC system and how the compressor works to cooling the car environment. If the straps have crack or leaks, the ac will not be working correctly. If the AC is turned on, the clutch becomes “energized” and “engages” the armature plate of the compressor belt and compressor drive. So the engine should have in good condition as well as the compressor too. Filed Under: Car Tagged With: How Does Car AC Compressor Work, Your email address will not be published. The problem may happen because of electrical chaos. The orifice and expansion valve works the same and allows the high-pressure liquid and refrigerant to pass a minimal side and the low-pressure side. Because of that, the AC system loses its refrigerant. In evaporator, the refrigerant is in form of a low-pressure gas. Lack of refrigerant or any leakage in it will damage the compressor. In fact, when your vehicle is placed in the DEFROST mode, the air conditioning (A/C) is automatically engaged. Over time the refrigerant can leak from the system and needs to be topped up or entirely replaced. It is powered by an accessory or auxiliary drive belt via the crankshaft and contains refrigerant, which it pumps around a sealed system to condition the air inside a car. Check the fan system, or the air if they work correctly. Hence, the AC starts working. The compressor also has an electrically-operated clutch that turns the compressor on and off as you demand more or less cool air. And when this happens to the refrigerant, it goes to the evaporator. So you need to replace the clutch or repair it. Once the desired temperature is reached, it automatically reduces its capacity to maintain the desired temperature. Basically, … You should test once in a month in every component of your ac system. The drier removes contaminants and moisture from the ac system. How does air-con compressor work? After the refrigerant leaves the evaporator core, it returns to the ac compressor, and the whole thing is just going to keep repeating as long as you turned on your ac. Knowing how the AC compressor work will help you to understand what to do when the AC compressor does not work, and you can redress the damages. If you want to stay cool, a working compressor is essential. It is run by an engine belt. It compresses the refrigerant (also known as Freon) to heat it up, which is then transferred through the condenser, producing cool air. Compressor: This is the heart of your AC system. The compressor connects to the engine with a belt. Car shop vs DIY: how much can Haynes save you? Sometimes they work a bit differently. If there is still no visible sign, then it might be the oil or temperature problem. It only removes hot air from your car. Many drivers believe that air-con can only be used to cool the car, and therefore use it only during the warmer months of the year. This pressure forces the liquid out of the compressor through the hoses in your AC hose assembly, which carry refrigerant through the system. Across from the friction plate is another friction plate attached to the rotor that powers the air conditioner. There are a few reasons for this process. From where the refrigerant goes, it depends on what car model you have. The other components are compressor clutch, ac compressor drive ring, evaporator core, passenger compartment, expansion valve, discharge valve, compressor relay, air conditioning fan, compressor belt, etc.. How Does the Compressor Work. • The compressor clutch coil is simply a large coil of copper wire. The compressor clutch consists of a friction plate positioned adjacent to an electromagnetic coil. An air compressor is an important piece of equipment that people and organizations use to accomplish many tasks. July 6, 2020 by Peter Caldwell Leave a Comment. How does AC Compressor work. The cooling fan is an essential part of the ac, and if you see the fan is not working, the compressor will not release col air. The evaporator contains the refrigerant which cools down the air and also removes moisture from it, which explains why you’ll often get a puddle forming beneath a stationary car with the air-con switched on. You will see a low- and high-pressure hose, a drive belt, and a couple of bolts, which is at least 12 millimeters. It is the most prominent part of the car because when it goes off, you will start sweating. After inspecting the compressor, check the belts and pulley if they are in good condition. The blower blows the cool the air over the evaporator, and the evaporator takes the humidity out, comes cold air from the ac vents, and you have air conditioning in your car. The compressor of the car air conditioning system is driven by the crankshaft of the engine through the belt drive. Most car AC systems use an electromagnetic clutch element that engages the compressor to spin the air conditioning unit. Any AC system requires a refrigerant, such as R-134a. Whenever you turn on the car AC system, the compressor pumps gaseous or vaporized refrigerant to the condenser. We’ve seen people try to create cold air with out one. It is not located in the engine compartments like others, and it is the only one located in the passenger compartment. By doing so, you’ve activated the compressor to compress and hike the temperature of the refrigerant. The condenser is the most natural part of the AC system, which you can check anytime you want. The air conditioner system has a low pressure cut-off switch that shuts off electricity to compressor clutch, disengaging it when the Freon pressure is too low. After expanding, the liquid refrigerant turns into gasses again. The evaporator location is inside your car underneath the dashboard, and the fan is underneath the glove box. The compressor: Pressurizes the refrigerant that cools your air. If there is a problem with the AC compressor, your car’s AC system will not deliver cold air and may even cause the engine to stall if the compressor gets stuck. There are three main components, and a few other parts run the whole system. The overall function of an air conditioner is to collect the heat from inside the car. You can call it the heart of the air conditioning system. Before repairing a bad ac compressor, you need to know the symptoms accurately so that it won’t make any delay. You will find many leak detectors in the market t check the leakage quickly. Your refrigerant should have the exact amount in the compressor all the time. As such, it draws its power from the engine. An air-conditioning compressor is a key component in a car’s air-con system. When this is activated, a current passes through the coil creating a very powerful electromagnetic force (EMF). You see, it is also the job of your refrigerant to transfer the AC oil through the moving parts of your AC compressor. Ac system is a close system that never supposed to be open to any atmospheric pressure. Some symptoms are. When you see the symptoms of a lousy ac system, you should examine some parts to know where the problem is. After those processes, the high-pressure liquid(pressure gas) in the expansion valve will go back to the evaporator. A smoothly running ac will make no noises; also, the fan will work properly. Sometimes, you need to replace the whole compressor. After that, it cools down the air, and the air travel through the dash and comes out from the vents. Leakage can be cured easily, so do not leave it for repair. The car ac compressor needs regular testing for better service. Finally, we are going to discuss the AC compressor’s function in a nutshell. When the clutch is not working or engaging, it is the sign of a bad ac compressor. On the other hand, if your car has an orifice tube system, the refrigerant passes through the tube, and it has a very tiny opening on the low-pressure side, which expands quickly because the high-pressure liquid goes to the low-pressure side of the system. The AC evaporator is a long tube or coil, which also goes back and forth of cooling fins like the condenser. The ac system has many tubes in it. When the refrigerant enters the evaporator and turns out into the liquid, the fan starts to blows warm air over it. There is a receiver drier where the high-pressure liquid travels in it from the condenser. The type of compressor most commonly used now in […] Then the compressor moves the refrigerant into a pipe. If there is any leakage, the ac will not work correctly. The compressor has a magnetic clutch that engages/disengages the compressor as needed. Unlike the old fixed displacement compressor (FDC), the variable displacement compressor (VDC) automatically varies its pumping capacity to meet air-conditioning demands. Automotive air conditioning system uses an electromagnetic clutch mechanism that engages the compressor to turn the AC unit. If there is not any visual problem, check the compressor if there is any damages or leakage. When the comp… To collect the heat, the refrigerant has to be of higher temperature than the air available outside the car. There are three types of air conditioning compressor: When the compressor sends the liquids, the liquids turn into gases because the compressor only compresses gasses, then raises its temperature into the condenser. It has a blower fan that blows air over the evaporator. Hot Air From Vents. The AC system has four basic parts: A compressor, which is powered by the engine using the serpentine belt and has a low side port that is connected to the evaporator along with a high pressure side port which is connected to the condenser using rubber hoses. The expansion valve is attached to the evaporator, and it defines the temperature of the evaporator, and the lid allows the refrigerant to pass to the evaporator. In the case of an undercharged system, your AC compressor cannot be properly lubricated. If your outside condensing unit keeps losing power and tripping the circuit, … If you have a better idea about each component, you will understand how the compressor work. How to replace AC compressor when it does not work anymore? When the refrigerant goes to the low-pressure side of the system, the side is going to cool the air down the refrigerant. An air-conditioning compressor is a key component in a car’s air-con system. When you turn on the ac, the ac compressor clutch engages the compressor shaft that runs through the ac compressor, and then it starts becoming the shaft inside the compressor and compressing the refrigerant. Ac system works by manipulating refrigerant, and all the order and the refrigerant maintain a cycle between a liquid and gas because the refrigerant goes from liquid to gas. Ac system gets its power from the engine. Whether you’re the driver or passenger, you take control of the car’s air compressor the moment you push the A/C button. The main job of an ac compressor is to release cold air to your car. But mainly it happens because both of those things can damage other components. When the refrigerant is drawn into the compressor, it is in a low-pressure gaseous form. The condenser is a long tube that connects to the cooling fins and works as same as the evaporator. The temperature changes in those different states. The first thing you have to do is to turn on the ac to know where the problem might behave. If you turn on your air conditioner and you only get hot air blowing out of the … Your local garage should be able to check the car’s system’s pressure and refill it. After filling the refrigerant into the receiver drier, it also leaves the drier and travel to the expansion valve or orifice. The process works in balancing the AC cycle following the compressor. But if you see the air is not cool enough and releasing hot air, it is the sign of a faulty ac compressor. When the refrigerant reaches into the condenser, the ac fan will blow air over it, which cooling down the refrigerant of the condenser. This cooling system helps you to refresh your mind and make you comfortable to ride long. The job of the compressor is it compresses the refrigerant than it turns out into the liquid. This removes water vapor and keeps the inside of your windshield clear. A compressor is a vital part of the operation of a car’s air conditioning system. Circuit Breaker Tripping. Compressor. The orifice is looking like a tube, and the expansion valve is like a small drier. Typically this works behind the … How does an AC compressor clutch work? The compressor clutch plays a vital role in the ac system. How to change your car’s engine oil and filter. To know about the ac compressor and how it works to cool the interior of your car, go to the engine compartment, and you will see where the ac compressor sits. An air conditioner compressor is the component that raises the temperature and pressure of the vapor refrigerant that leaves the evaporator coil. In this process, it’s going to use a lot of heat. When the refrigerant is low, the ac pressure switch will disable the compressor. In short, the compress helps to compress the low-pressure refrigerant matching the air temperature. Air compressor types. In short, the refrigerant turns into a high-pressure liquid state, and when it leaves the condenser, it still stays in wet condition. Electrical issues within your Hyundai’s air conditioning may be a result of … It is powered by an accessory or auxiliary drive belt via the crankshaft and contains refrigerant, which it pumps around a sealed system to condition the air inside a car. So the gasses turn into liquid again. The other components are compressor clutch, ac compressor drive ring, evaporator core, passenger compartment, expansion valve, discharge valve, compressor relay, air conditioning fan, compressor belt, etc. From inflating kiddie pools to powering paint sprayers and nail guns to driving pneumatic devices and other equipment, an air compressor can be a very handy gadget.But don’t ever wonder, how does an air compressor work? Save my name, email, and website in this browser for the next time I comment. A belt drive attached to the engine spins constantly, providing energy for the AC compressor. The compressor is the core, primary part of every A/C system. In fact not using the air-con at least once a week can harm it, because the refrigerant acts as a lubricant for the system’s seals and gaskets. To check this, set the ac max and wait for a while. An air conditioner (AC) in a room or a car works by collecting hot air from a given space, processing it within itself with the help of a refrigerant and a bunch of coils and then releasing cool air into the same space where the hot air had originally been collected. If the clutch shoe isn't rotating, you'll need to discover the reason and correct it. You should inspect the car engine and the compression before inspecting the compressor part to be sure if any other part has some issues or not. Also, you will get many answers you need to know. Some do-it-yourself kits contain “stop leak.” The entire process is powered by your engine's drive belt (or belts). After activation, the refrigerant is … The evaporator core is the coldest part of the ac system. Your Your car’s air conditioner system has a lot of different components, including the compressor, the receiver dryer, the hoses, the evaporator, and the condenser. • The clutch body/pulley is rotated by the drive belt when the engine is running and rotates around a pulley bearing. The compressor connects to the crankshaft via a drive belt. … Condenser – It is the device looks like a small radiator and is used after the compressor as it provides condensing i.e. Although air-conditioning is an energy-intensive process, and increases the amount of fuel a car uses, modern systems are efficient. Understanding how AC works needs someone better understanding of the whole process. Trust us, it doesn’t work. The belt turns a rotor, which has a friction plate attached to it. Beginner’s Guide: what is a throttle body and what does it do? When it is compressing the refrigerant, it pushes it out and turning into gasses. The receiver-drier is a compassionate thing and can rust quickly. he compressor is the central part to air condition your car like other refrigerators does in your home. The air-conditioning compressor does exactly what its name says -- it compresses refrigerant and sends it to your car's air condenser. The three main components are. Now, are you interested in knowing more about the car air conditioning system? Near the rotor is an electromagnet--a coil of wire which produces a magnetic field when current is run through it. The compressor is what takes the refrigerant (the gas) and pressurizes it, so it will absorb heat and cool the air. The Basics Air Conditioning Theory The Basics Compressor Facts The Basics Safety Switches Basic Auto Air Conditioning Compressor Facts The next most critical part of an air conditioning system in terms of providing optimum performance and trouble-free service is matching the compressor to the other system components. There are a lot of things to know about the car. While there are compressors that use rotating impellers to generate air pressure, positive-displacement compressors are more common and include the … When the driver requests AC, the system provides... • … After the liquid going into the pump, the compressor sends it from the evaporator into a condenser and expansive valve, and then it goes back to the evaporator. When this does not happen, your compressor will end it’s life at an undesired time. If you will familiar with all the components of the air conditioning system, you will understand the vehicle cooling system more frequently. It may have leaks or lack of gas or any other reason. Faulty Air Conditioner: So the reason your car overheats with ac on could be due to a bad or faulty … The cold evaporator core helps remove water vapor from the air. the ac will even start vibrating. After turning into gasses, it goes to the condenser, which is looking like a radiant. Many people think that the compressor creates cold air, which is not valid. It is located in front of the radiator. So we recommend switching on the air-con and turning up the heat on a regular basis during the winter - the dehumidified air generated by air-con is also excellent for clearing steamed-up windows. Compressor: The compressor is a pump driven by a belt attached to the engine's crankshaft. A car AC compressor is an essential element that you cannot think of going out on a hot summer day without it in your car. Keep following the article. The evaporator absorbs the heat of the air that’s flowing over the evaporator. Beginner’s guide: what is a four stroke engine and how does It work. 2. This will allow the compressor drive and the engine to rotate at the same time. The AC compressor is the most integral part of the air conditioning system and is responsible for pressurizing the refrigerant and distributing it. Also, the switch should be strong enough because it controls the high and low-pressure sides. The process creates very high heat, but the twisting tube of condenser flows the refrigerant back and forth and makes it fresh. There’s an Electrical Issue. It will turn out a gaseous state again, so the refrigerant absorbs the heat from the warm air. Cold evaporator core helps remove water vapor and keeps the inside of your ac system and needs to be higher! A smoothly running ac will not be published condition your car 's air.... From Haynes liquid travels in it from the condenser, which you can see diagrams. Problem, check the fan will work properly commonly used now in [ … the. 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