Air Conditioning Systems and How They Operate

Many homes are equipped with an HVAC (heating, ventilation, and air conditioning) system that has many moving parts and motors. Over time, these parts can wear down or begin to start-up slowly and ineffectively, decreasing the overall cooling effect of the system. AC repair is generally a multi-step, trouble-shooting process, which involves looking at the motors, fans, and electrical wiring involved in an air conditioning unit.

Air conditioning units operate on a simple scientific principle in which changes of state-from liquid to gas, for example-either absorb heat or give off heat. In the case of air conditioning units, a liquid refrigerant contained in a set of cooling coils is heated by air that runs through it. This induces a state change to gas, which absorbs heat and whisks it away to the outside. Now you have cool air circulating in the home or office. The gaseous refrigerant compressed back into a liquid via a device in the outside unit called a compressor. A set of hot coils then brings the temperature of this heated liquid refrigerant back down. The cycle starts again. Our office performs ac repair in Carrollton and surrounding communities. Should you want colder air in your home but are unable to obtain it.

Given the relative complexity of air conditioning units, it is often necessary to call out a professional. With a bit of information at your disposal, you can make the right choice regarding your system. It will help you inform your repair person.

In most cases requiring AC repair, the ultimate culprit is an electrical malfunction. Sometimes, the electrical control settings for the unit are not properly calibrated. Another common problem involves the mechanical workings of the unit. Refrigerant leaks can destroy the unit’s capacity to effectively cool air, while burnt-out motors eliminate its capacity to condense the refrigerant. Loose belts can stop fans from running properly, making it impossible to circulate air. These can all be problems with the inside or the outside unit, as the compressor is housed outside, while coils and blowers are located both on the inside and the outside.

Check the electric settings and hook-ups. In the majority of situations in which an AC repairperson is called to a job, the problem involves an issue with electric wiring and console settings. Thermostat settings are an obvious start-be sure that you have selected the “cool” setting on the setting knob. Ensure that the circuit breaker has not switched the unit (either inside or outside) off due to a short circuit.

Check the moving parts. Fans allow the unit to circulate air, which, you can imagine, is the name of the game in air conditioning. Some fans have faulty motors, while others have a loose belt. Additionally, mechanical failures in motors are another common culprit, since these motors drive the flow or refrigerant.

Broken unit? Need repair? Call ac repair in Carrollton you can trust your friends at Dagar Heating and Air. The areas number one HVAC contractor.

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