Air conditioning is very much a part of modern living. It has influenced building architecture and design, including the rise of skyscrapers. It can make life much more comfortable during hot summer months, and they can be lifesavers during heat waves. Of course, there is also a down side to air conditioners but for all its impact on society, it relies on relatively simple principles of physics and chemistry.
Basically, an air conditioner consists of a compressor, a condenser, an expansion valve, and an evaporator. It also has fans to draw warm air from the room and deliver cool air inside, a thermostat to regulate the compressor, a power switch to turn the unit on, and perhaps a timer but these do not play a direct role in cooling the air.
Cooling begins with the compression of the refrigerant, which may be Freon or a CFC, by the compressor thus heating the gas. It then passes through the tubes of the condenser where it dissipates some of the heat, liquefying the gas in the process. The liquefied but still compressed refrigerant passes through an expansion valve into the larger tubes of the evaporator. Pressure drops at this point along with a further decrease in temperature. Owing to the low boiling point of refrigerants, the liquefied Freon or CFC immediately begins to boil, and is transformed back into a gas. This evaporation absorbs heat around the evaporator tubes making the area cooler. It is the air in this area that is blown by the fan into your room or car.
The principle indeed sounds simple, but as with any mechanical device, it requires maintenance. The action of the compressor and the fans can vibrate the air conditioner causing some joints to loosen and perhaps the refrigerant to leak. The same is true with its electrical components. Continuous usage can overload fuses or burn some wiring. And because it filters air it draws from the room, it also needs cleaning.
The old adage about an ounce of prevention being better than a pound of cure applies not only to your health but to air conditioners as well. Even if there is no obvious problem with your air conditioner, it is prudent to inspect it regularly to avoid bigger problems. Here are some of the things you can check on your own:
In addition to these regular check-ups, it is also advisable to have the unit inspected by a professional air conditioner technician periodically, preferably before the onset of summer when it will most likely be working overtime. Have them check the tubes for possible leaks especially at those points where they connect to the compressor and expansion valve. Inspect the electrical system and take preemptive measures if there is any potential for break down. It would be most inconvenient if your unit broke down in the middle of summer and you have to wait a few days for it to be fixed.
If, in spite of taking these precautionary measures, you still hear funny sounds from the unit, or it refuses to run, or it runs but does not deliver cool air, immediately turn it off and call a North Texas air conditioning repair expert help. Operating it any further may result to greater damage.
There are plenty of air conditioning repair companies available so that choosing one will probably be more of a problem than looking for one. We understand the difficulty in trying to make the right decision when picking out a service company. Give Blessed Air & Refrigeration Service a call today at 903-821-5295 and we’ll do everything we can to make sure you’re glad you did.