How a Mini Split AC System Works

If you’re shopping for a Mini Split AC, you want to make sure that you have the right system for your home or business. This includes ensuring that the unit is properly installed. That’s why you should choose a company that is licensed and insured to perform the work. It’s also a good idea to check the brand’s warranty and Btu rating (British Thermal Units). A higher number means that the system can effectively heat and cool more square feet.

Ductless mini splits offer an ideal HVAC solution Mini Split AC for many situations. They are especially effective for rooms that either don’t have air ducts running to them or that have been converted from existing space such as finished basements, sunrooms, home additions and guest rooms. Some are AC-only units for warm climates, while others are a combination of air conditioning and heating that works well in cooler climates.

They don’t require ducts to function, but rather connect to your existing ductwork through a hole in the wall or attic. A piping system of copper tubes runs through this opening, carrying refrigerant to and from the indoor unit as needed to provide cooling and heating.

A reversing valve in the piping allows the system to change directions of flow (from suction to discharge) as needed for optimal performance. A fan in the indoor unit blows air over the evaporator coil to remove heat from the air. The cooled air is then vented outside, and the refrigerant cycle starts over again.

The size of the indoor unit and the amount of available space determine how large an area it can efficiently cool. You can use our exclusive Pick HVAC Btu Calculator to find the correct size for each room or zone in your house.

As with any other HVAC system, mini splits should be regularly maintained in order to operate as efficiently as possible. This is particularly important for preventing the refrigerant from depleating and becoming damaged.

Mitsubishi Electric is the leading manufacturer of mini splits, and has a wide range of single-zone and multi-zone systems to accommodate both cooling and heating needs. They have advanced features such as energy-saving inverter technology, and Hyper Heat to quickly warm up cold spaces. They are among the best in the industry for durability and quality.