Mini split air conditioner is also known as split units. There are basically 2 casings that are mounted one at the indoor and the other at the outdoor. Compared to the window units, it is less noisy as the outdoor unit is mounted outside of the building or house with piping connecting the two units.
Mini Split Air Conditioner Indoor Unit
The indoor unit is installed inside the room to be air conditioned. It can be mounted on the ceiling, wall or simply as a console unit on the floor. The other term which is used for the indoor unit is Fan Coil Unit or FCU. It consists of the following parts:
An indoor wall mounted unit in a mini split system. Other type of indoor units such as ceiling expose FCU, Ceiling Concealed FCU and Ceiling Cassette FCU are also used.
Mini Split Air Conditioner Outdoor Unit
The outdoor unit is installed outside the building and consists of the following parts:
During installation, it is always a good idea to keep the distance between the indoor and outdoor units as close as possible. Back to back installation is the best. As the distance increase, the pressure drop in the suction and liquid lines also increases resulting in the reduction of the unit capacity.
Compared to window air conditioner, this unit is quieter as the compressor is located at the outdoor unit. This is one of the main advantage of mini split air conditioner compared to window air conditioner. In the effort to make the unit even less noisy, some manufacturers placed the capillary tube at the outdoor unit to reduce the hissing noise of the refrigerant at the outlet end of the capillary tube.
Mini Split Heat Pump
If you are looking for unit which can be used as heating as well as cooling, mini split heat pump unit is a unit that is able to cool the room during summer and heat the room during winter. A 4-Way-Valve is used to accomplish this. During heating operation, it reverses the flow of the refrigerant which results in the evaporator to act as a condenser and the condenser as evaporator.
Visiting HVAC events and trade shows are one of the best way to equip yourself with the latest happenings in the air conditioning and refrigeration field. See the listing of events for year 2017-2018.
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Direct Expansion System uses components such as the compressor, evaporator coil, metering device and condenser coil to expand the refrigerant and cool the room.
Here are the air conditioners frequently asked questions and answers.