Central Air Conditioner - How To Get The Best One?

central air conditioner reviewsCentral air conditioning systems are energy moving or converted machines that are designed to cool or heat the entire house. These systems don't create heat or cool. They just remove heat from one area, where it is undesirable, to an area where it is less significant or makes no difference. Everything depends on the settings, provided by the user. Central units have a centralized duct system. The duct system (air distribution system) has an air handler, air supply system, air return duct, the grilles and register, which circulate warm air from a furnace or cooled air from central air conditioning units to the room. It returns that air back to the system and starts again. It uses AC refrigerant (also known as Freon) as a substance to absorb the heat from indoor evaporator coils and rejects that heat to outdoor condenser coils or vice versa.

There is a wide range of central air conditioning systems in the present market and it is advisable to consider your choice well, before actual purchase. There are different types and forms of central units, but there are two types for residetial usage, which you will see: split system and package air conditioning units.

Split systems have two separate metal cabinets for indoor and outdoor. These two cabinets are connected to each other with copper refrigerant tube. Indoor units are also known as air handler, they contain the blower, furnace (for heat season), metering device, evaporator coils, control and other electrical parts. The outdoors units, condensers, are square or round shaped metal cabinets containing a compressor, condenser fans and condenser coil plus the electrical parts.

Package unit is a self-contained air conditioning appliance, which have all the components built into one metal cabinet. Package appliances are normally located out of the building, on the top of the roof or on window.

Window air conditioner is a package unit that has less capacity and one fan motor with a double shaft that runs the blower and condenser fan. While larger package appliances have better air conditioning or heating capacity with two motors fan. One fan is for evaporator and the other for condenser. A rooftop unit in light commercial is normally air-to-air or air cooled conditioner units. It is fixed on the top of the building just to save building space.

Even though package unit is located outside or on the top of the roof, it needs an air distribution system, control connection and must be connected to a power line by a licensed electrician. Except window units, as it does not need a duct system it just blows air freely to open space.

central air conditioners reviews While making up your mind about the purchase of central air conditioning unit, you should take a look at the seasonal energy efficiency ratio. This is called the SEER rating. In simple terms, SEER is calculated by dividing the cooling capacity of a continuously operating air conditioner by the electrical input required to run it. The value is expressed in numbers. A SEER 10, for example, is now the lowest number allowed and any number larger, than that, is accordingly more efficient and will cost less to operate. Most manufacturers now offer SEER 10, 11, 12 and 13 models, and some offer SEER 14. This gives you five separate efficiency options, with model numbers usually keyed to the SEER numbers, so they are easy to recognize.

If you have some doubts about the purchase of central air conditioning system or you still don't know what type of appliance it is better to choice, then we would strongly advise you to read users' reviews. They can play the decisive part in the selection of the right system for your house and in such a way you can also learn more about the operation and maintainance of this type of products.