Air conditioning maintenance

Air conditioning maintenance is something that can be done in your own home. A central air conditioner has an inside and outside unit. The outside unit expels heat from the inside. The air is cooled on the evaporator which is located on the inside unit. Through the various ducts in the home the cool air is spread evenly all over the house. Then the cycle continues until your house is thoroughly cooled. The condensing unit is on the outside and it is the one responsible for expelling heat outside. These units are sealed and require the attention of a certified professional.

Apart from the central air conditioners there are the car air conditioner, the wall air conditioner, the portable system and the split system air conditioner. Almost all the air conditioners have the following similar parts, the compressor, the condenser, the evaporator, the expansion valve and the drier or accumulator. These parts are interconnected using pipes and valves. Refrigerant is the fluid which is also highly volatile that transports heat from one component to another. The air conditioner basically starts working when you turn on the AC and the refrigerant goes to the compressor where it is compressed and absorbs heat and changes from liquid to gas. Then it goes to the condenser where it is cooled sometimes in some systems the condenser may be fitted with an electric fan. After being cooled and changing back to liquid the refrigerant moves to the evaporator where it is cooled further and then air is blown across it for it to become cool and this cool air is then blown into your environment. The refrigerant then absorbs the heat from the air blown and it reverts to a gas. The drier removes any impurities on the refrigerant using filters and desiccant to absorb any moisture. The expansion valve controls how cool the air you receive will be. Before acquiring a unit you should check how energy efficient it is and for some of the appliances industries they offer free installation of your unit.

The first thing that the technician will check for is leaks using a special dye. This is because refrigerant when exposed through leaking evaporates. He/she will also look at the pressure readings and basically does a visual test to tell whether the air conditioner needs an in depth check. The specialized expert will also be able to change your old refrigerant type to the new environment friendly refrigerant. The technician will also recharge your system for you. If you are low on refrigerant he will do the evacuation then fill it with the appropriate amount of refrigerant. The technician may also recommend that some of the parts be repaired. Although he will not replace anything without your consent and he will show you the price of the item to be replaced and the models available. Then you can return to using your AC normally for several months before scheduling the next maintenance to improve its performance.