Multi Solution


Multi Central Air Conditioner Solution

Multi air conditioner is a variant that combines central air conditioning and local commercial air conditioning. The Multi air conditioning system consists of 1 outdoor unit that can be connected to multiple indoor units. The Multi air conditioner unit has many advantages as follows:

    • Save space, ensure aesthetics: Multi air conditioners only need 1 outdoor unit to connect to many indoor units, making balconies, loggias or facades neater.
    • Save energy and increase cooling productivity: Thanks to Inverter technology, the system can adjust the capacity according to actual needs, helping to limit electricity waste and maintain a stable temperature in each space.
    • Independent operation and control: The indoor unit lip can be turned on/off and the temperature can be set according to each room. Users only need to cool the area in use, not have to operate the entire system at the same time.
    • Quiet and durable operation: Multi air conditioners operate stably, limiting noise and reducing the continuous operation of the compressor. As a result, the equipment can operate more durably and for a longer time.
    • Optimize installation and maintenance costs: Sharing outdoor units helps reduce the number of outdoor equipment and save installation space. When maintaining, it will also be easier for technicians to check than many separate outdoor units.
    • High flexibility: The Multi system can be connected to many indoor units such as wall-mounted, cassette ceiling, concealed ceiling with duct or ceiling. As a result, users can easily choose the right equipment for each room and interior style.
  • Haier’s Multi air conditioner has the following outstanding features:
    • Luxurious Design: The newly designed outdoor unit and integrated grille effectively conceal the fan inside, providing a more elegant and harmonious appearance with the built environment
    • More energy efficient: Mishubitshi Electric DC full inverter compressor, larger heat exchanger and DC fan motor, low standby power design, all these problems help to ensure high energy efficiency.


    • Quieter: the design reduces sound pressure from 51 to 46 dB(A) and sound power from 64 to 58 dB(A). Besides, the large fan diameter helps to increase rotation speed and reduce noise, and the low-noise compressor with multiple layers of soundproofing material will help reduce noise effectively.


    • Wireless control: through an app installed on the phone that connects all indoor and outdoor units via wireless transmission
    • Central Control: Multiple multi outdoor units can be connected to the central controller directly without the need for an intermediate connector


    • Flexible: Up to 5 indoor units can be connected to 1 outdoor unit. Each indoor unit can be controlled separately. Many different types of indoor units can be used to connect to 1 outdoor unit, such as wall-mounted indoor units, cassette indoor units, ducted ceiling indoor units, etc.


    • Easy to install and maintain: The maximum pipe length difference is 100m, the height difference between indoor and hot units is 15m. Saving time in connecting wires, the shared valve design allows 1 vacuum for all indoor units, the display panel allows frequency display and fault alarm, allows the connection of a computer via the data port so that technicians can check the detailed operation data of the system.

Outdoor unit details, model xxxxWEAFRA

    • Outdoor Unit Power 4KW(1.5HP), 4.8KW(2HP), 5.8KW(2.2HP), 7.3KW(2.8HP), 7.8KW(3HP), 10.5KW(4HP), 11.8KW(4.5HP)

Indoor unit details, models ASxxPBTHRA, AdxxS2SS1FA(H), AdxxS2SM9FA(H), ABxxS2SC2FA(H), AbxxS2SR1FA(H), AbxxS2SA1FA(H)

    • Indoor unit power 2.5KW(1HP), 3.5KW(1.3HP), 5KW(2HP), 7.1KW(2.7HP), 9KW(3.5HP)

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