Airconditioners - Inverter
Types of Central Air Conditioners A central air conditioner is either a split-system unit or a packaged unit. In a split-system central air conditioner, an outdoor cabinet contains the outdoor heat exchanger, fan, and compressor, and an indoor cabinet contains the indoor heat exchanger and blower. In many split-system air conditioners, the indoor cabinet may contain the a furnace or the indoor heat exchanger of a heat pump. If your home already has a furnace but no air conditioner, a split-system may be the most economical central air conditioner to install.climatisation In a packaged central air conditioner, the heat exchangers, compressor, fan, and blower are all located in one cabinet, which usually is placed on a roof or on a concrete slab next to the house's foundation. This type of air conditioner also is used in small commercial buildings. The supply and return ducts come from indoors through the home's exterior wall or roof to connect with the packaged air conditioner. Packaged air conditioners often include electric heating coils or a natural gas furnace. This combination of air conditioner and central heater eliminates the need for a separate furnace. Installation and Location of Air Conditioners If your air conditioner is installed correctly, or if major installation problems are found and fixed, it should perform efficiently for years with only minor routine maintenance. However, many air conditioners are not installed correctly. As an unfortunate result, modern energy-efficient air conditioners can perform almost as poorly as older inefficient models. Image Cold climate heat pump outside a commercial building. When installing a new central air conditioning system, be sure that your contractor: Allows adequate indoor space for the installation, maintenance, and repair of the new system Uses a duct-sizing methodology such as the Air Conditioning Contractors of America (ACCA) Manual D Ensures there are enough supply registers to deliver cool air and enough return air registers to carry warm house air back to the air conditioner Installs duct work within the conditioned space, not in the attic, wherever possible Seals all ducts with duct mastic and heavily insulates ducts Locates the condensing unit where its noise will not keep you or your neighbors awake at night, if possible Locates the condensing unit where no nearby objects will block airflow to it Verifies that the newly installed air conditioner has the exact refrigerant charge and airflow rate specified by the manufacturer Locates the thermostat away from heat sources, such as windows or supply registers.