Lynch Air Conditioning & Refrigeration
Lynch Air Conditioning & Refrigeration
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    • AIR TO AIR SOLUTIONS
    • WHY AIR TO AIR ?
  • Heat Pumps
    • Air to Water
    • Geothermal Heat Pumps
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  • More
    • Home
    • Contact Us
    • AIR TO AIR
      • AIR TO AIR SOLUTIONS
      • WHY AIR TO AIR ?
    • Heat Pumps
      • Air to Water
      • Geothermal Heat Pumps
      • Emergency Breakdown

  • Home
  • Contact Us
  • AIR TO AIR
    • AIR TO AIR SOLUTIONS
    • WHY AIR TO AIR ?
  • Heat Pumps
    • Air to Water
    • Geothermal Heat Pumps
    • Emergency Breakdown

Air to Air Heat Pumps: Efficient Heating and Cooling Solutions

Split Air to Air System

Multi-Split Air to Air System

Multi-Split Air to Air System

Diagram of a house with two air conditioning units connected to indoor air handlers.

A split system is a heating and cooling setup with one outdoor unit connected to one indoor unit.


The indoor unit heats or cools a single room or area, while the outdoor unit removes or supplies heat. It moves heat through refrigerant pipes.


Split systems are ideal for single rooms, offices, or open-plan areas where only one indoor unit is needed.

Multi-Split Air to Air System

Multi-Split Air to Air System

Multi-Split Air to Air System

Diagram of a house with a multi-zone air conditioning system.

An air-to-air multi-split system is a heating and cooling setup with one outdoor unit connected to several indoor units.


Outdoor units are available with 2, 3, 4, or 5 ports, allowing multiple indoor units to connect depending on how many rooms need climate control.


Each indoor unit can control the temperature in its own room, so different rooms can be heated or cooled separately.



Ducted / Ceiling Concealed System

Diagram of a home air conditioning system with ducts, indoor, and outdoor units.

A ducted ceiling concealed system is a heating and cooling setup where the indoor unit is hidden above the ceiling, with air supplied through discreet grilles or diffusers into each room.

It provides a clean modern look, low visible equipment, and even air distribution throughout the home. Zoning controls can also allow different areas to be managed separately.

These systems are ideal for new builds because ductwork and ceiling space can be planned during construction, making installation easier and more efficient. They are a popular choice for homeowners wanting high comfort, quiet operation, and a premium finish.  

Air to Air Indoor Types

Four different types of Mitsubishi air conditioning units shown in a grid.

Indoor units are available in several styles to suit different spaces and layouts. 

Cassette units (Top Left) are fitted into suspended ceilings and distribute air in four directions, making them ideal for offices or open areas. 

Highwall units (Top Right) are the most common wall-mounted option, perfect for homes, bedrooms, and living spaces. 

Floor mount units (Bottom Left) are installed low on the wall near floor level, ideal where wall or ceiling space is limited.

 Under ceiling units (Bottom Right) are mounted directly beneath the ceiling and are well suited to shops, large rooms, or areas without ceiling void space.

Lynch Heating & Cooling

Railway Park, Drumroosk Middle, Donegal, Ireland

+353 85 860 2614

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