How Your Car's Heating And Air Conditioning System Works
Many of us became used to the comfort offered by our cars ' heating and aircon system
. In the cold months, warm air keeps the chill in check. In the hotter months, the A / C produces cool air to make the driving experience more content.
Like most auto parts and systems, the heater and air conditioner work without our considering them. Sadly , they do suffer wear. They can break down for many reasons, and fail to perform their own roles.
The technology used to design your vehicle's heater and A / C has developed during the past a few decades. But issues can still happen. In this piece, you will learn how the diverse elements work in partnership to guarantee your drive is as cushty as practicable. We'll then take a quick look at one or two issues you can experience down the line.
The Job Of The Compressor: Attached to the side of your car's engine is a component called the compressor. It is a pump that is responsible for compressing refrigerant (e.g. R-134a, Freon, etc.) and sending it to another component called the condenser (described below). In order to fulfill this responsibility, the compressor intakes low-pressure gas from a part called the evaporator. The compressor pressurizes the gas - heating it in the process - before sending it through the system.
The Condenser And Growth Valve : Your A / C system's condenser appears similar to your cooling system's radiator. Also , it works in the same way. Once the high-temperature, pressurised gas from the compressor reaches the condenser, it goes thru a process thru which heat is removed from it. In this process, the refrigerant gas is turned into pressurised liquid before it leaves the condenser on its way to the enlargement valve.
The growth valve manages the quantity of refrigerant that reaches the evaporator ( described below ). When you change the temperature control in your vehicle's cabin, you are changing the setting of this component. The bigger the temperature setting, the less refrigerant that's permitted to pass thru to the evaporator.
Evaporator: Your air conditioner's evaporator has a few responsibilities. First, it is tasked with removing heat from within the cabin of your car. Second, it removes moisture from the air that leaves it and passes through the vents.
By the time the liquid refrigerant arrives from the expansion valve, much of its pressure has dissipated. It enters the evaporator where it is dehumidified prior to its release. The refrigerant then leaves the evaporator and travels back to the compressor to start its journey over. Meanwhile, cold air is blown through your car's vents with a blower motor.
Potential difficulties that may Develop : The commonest issues drivers experience with their car's heating and air conditioner system include a scarcity of cold air, patchy cooling performance, and noise and odour. Shortage of cold air is mostly due to a shortage of refrigerant. This implies there's a leak from the seals or hoses somewhere in the A / C system. Finding such leaks is best left to a trained mechanic who has the required gear.
Random cooling is sometimes attributable to an obstruction due to moisture. Finding the obstruction, like locating a refrigerant leak, can be a challenge unless you've got access to the right diagnosing kit. The issue can also be caused by an electric failure that hinders the compressor clutch from engaging. If the clutch fails to engage, the compressor won't work.
If you hear your car's A/C system making excess noise, have a mechanic check the compressor. There's a high likelihood the component is about to fail, and will need to be replaced. If you smell a musty odor coming from the vents, mold has likely grown on the evaporator. This occurs because moisture collects on the evaporator's surface (recall that the component dehumidifies the liquid refrigerant). Don't ignore the odor. Have the mold cleared out.
The heating and air-con system of your car should operate without any problems for a while. When issues happen nonetheless, the repairs are best left to an engineer.
by: Angela Robbins.
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