An indoor unit

An indoor unit in an air conditioning system is a component that sits inside the room you want to cool or heat. It is one of the two main components of a split air conditioner, which is used for direct contact with the indoor air and allows temperature, humidity and air quality to be regulated.

Indoor unit functions:

Evaporator: The indoor unit contains an evaporator which is responsible for absorbing heat from the indoor air. The refrigerant passes through the evaporator, where it changes from a liquid to a gas state, absorbing heat and cooling the surrounding air.

Fan: An internal fan circulates air from the room through the evaporator. In this way, it allows the evaporator to absorb heat from the air, which lowers the temperature in the room.

Control elements: The indoor unit can contain regulators, such as thermostats or remote controls, which allow you to set the desired temperature and control the operation of the air conditioner.

Filters: Some indoor units contain filters that clean the air of dust, dirt and allergens. This ensures better air quality in the room.

Types of indoor units:

Indoor units may differ in their design and installation method:

Wall units: They are installed on the wall in a convenient place and come in different sizes and shapes.

Floor units: These units are placed on the floor and vents are often located above them.

Ducted units: These units are installed in the ceiling or wall and the air is distributed through ducts to several rooms.

Cassette units: Cassette units are installed in a ceiling cassette and the vents are directed downwards.

The indoor unit is the component that is directly visible and perceptible in the room. It is an important factor for the efficiency and comfort of air conditioning, because it is responsible for the distribution of regulated air to the internal environment of the building.