Single split air conditioner

A single split air conditioner is used for cooling and heating one room. The system consists of one indoor unit and one outdoor unit that together serve one climate zone, such as a living room, bedroom, office, retail space or workshop.

At Hewa, you will find wall-mounted single split air conditioners in various capacities, including 9000, 12000, 18000 and 24000 BTU. When selecting the right system, check room volume, cooling capacity, heating capacity, sound level, pipe length, mounting position, electrical connection and outdoor unit placement.

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Selecting a single split air conditioner

A single split air conditioner is intended for cooling and heating one separate room. The system consists of one wall-mounted indoor unit and one outdoor unit. This makes the setup clear, efficient and suitable for rooms where multiple indoor units are not required.

Single split air conditioners are often used in living rooms, bedrooms, home offices, retail spaces, practice rooms and workshops. When several rooms need separate control, multi split air conditioning is often more logical. For installation and finishing, air conditioning installation material is important.

Important when choosing single split air conditioners

  • Select the correct capacity, such as 9000, 12000, 18000 or 24000 BTU
  • Match cooling capacity and heating capacity to room volume and heat load
  • Check sound level, air distribution, controls and required comfort mode
  • Check maximum refrigerant pipe length, height difference and condensate drain
  • Check mounting position of the indoor unit and outdoor unit
  • Use suitable refrigerant pipework, trunking, isolator switch and mounting material
  • Have refrigerant work carried out by a qualified F-gas technician

One indoor unit and one outdoor unit for one climate zone

The main advantage of a single split air conditioner is the direct combination between indoor unit and outdoor unit. Capacity is matched to one room, keeping control straightforward and making the installation less complex than systems with several indoor units.

When selecting the right model, the room heat load must be reviewed carefully. Large windows, solar radiation, insulation level, ceiling height, usage hours and internal heat sources can influence the required capacity. A system that is too small may not reach the desired temperature, while an oversized system may control less smoothly and feel less comfortable.

Frequently asked questions about single split air conditioners

What is a single split air conditioner?

A single split air conditioner is an air conditioning system with one indoor unit and one outdoor unit. It is intended for cooling and often also heating one separate room.

Which room is a single split air conditioner suitable for?

A single split air conditioner is suitable for living rooms, bedrooms, home offices, retail spaces, practice rooms or workshops. Capacity must be matched to room volume and heat load.

Which BTU capacity do I need?

The correct BTU capacity depends on room size, insulation, solar radiation, window area, usage profile and required temperature. This should preferably be assessed technically before selecting the system.

Can a single split air conditioner also heat?

Many modern single split air conditioners can heat as well as cool. Check heating capacity, efficiency, operating range and performance at lower outdoor temperatures for each model.

Who may install a single split air conditioner?

Refrigerant work on split air conditioners must be carried out by a qualified F-gas technician. Electrical connection, isolator switch and safety protection must also be installed correctly.

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