Automotive Air Conditioners
Car air conditioning (A/C) system has been introduced in 1940. Answering consumers’ demand for comfort while driving in unbearable heat. It uses refrigerant in cooling the air and take away the heat from the car’s passenger compartment. Aside from that, it also dehumidifies (removal of excess moisture) and cleans the air that enters the car.
Cars that were manufactured in late 1995 are equipped with R-134a air conditioning system, which is ozone friendly because it does not contain CFCs. It is nonflammable and nontoxic.
Previous car models came with R-12 refrigerant and the most common brand name was Freon. During that time, when a car owner was having problems with the car’s air conditioning system, a visit to a local retailer offering recharge kit, cans of Freon and basic knowledge on how to do will repair the air conditioning system.
However, when studies made confirmed that R-12 was damaging the ozone layer, countries like United States banned its manufacture.
Three basic components make up the A/C system. These are the following:
1. Compressor – considered the heart of A/C system. Functions include transferring and compressing refrigerant gas to let the heat out from the car.
2. Condenser – It removes the heat from refrigerant and cools down high-pressured gas.
3. Evaporator – Acts as the heater core of the A/C system to remove the heat from inside the car. The refrigerant then condenses the air to transform it into water.
Common problem
The common issue about car air conditioning system from the time it was introduced is the existence of odor coming from the A/C vents. This is common complaint against R-134 system. Mechanics and car manufacturers concluded that it is caused by accumulated bacteria and fungus in the evaporator core. Because A/C is loaded with moisture, it attracts the microbes.
The solution offered by automakers is making the blower motor works in drying out the evaporator after the A/C system is turned off. This breakthrough is called Electronic Evaporator Dryer, introduced by General Motors.
Automotive companies provide the best value for money, effort and time.
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This might sound good to other car owners but not to all. Installing this system can cost hundred of dollars. Many car owners have settled to alternative solutions to fight the odor. Using antibacterial chemicals such as Lysol is good for short-term solution.
Keeping a can of Lysol handy can go along way. Just spay it inside the car and in the air intake once a week and the odor will disappear for a specific period. Another technique to eliminate the odor is by turning off the A/C system at least one mile before reaching the destination. This will allow enough time for the evaporator to dry out. This can be the easiest and least expensive way in combating the issue.
Caring for the Air Conditioning system
Every now and then, depending on how often the air conditioning system is used, it must be recharged to work efficiently. Sometimes, a water leak from the A/C system’s condenser can affect the refrigerant. This should signal the car owner to see the mechanic at once. The A/C system will be fixed before being refilled.
Replacing the filter once every three months will also help the A/C system’s performance. This is where the dust builds up when the A/C system is running. Setting the A/C to one specific temperature also helps it perform well, switching it from one temperature to another every now and then makes it difficult for the system to adjust accordingly.