VRF Side Flow

Ideal for balconies and narrow spaces, our compact Side Flow VRF system ensures optimal comfort and efficiency for your spaces.

A scalable, flexible solution as needs change over time

One outdoor unit can connect with up to 19 indoor units, making these solutions scalable and affordable for business premises of different sizes, or as the use of different rooms change. Choose from ducted, wall, cassette, floor standing and concealed, for different aesthetic and functional considerations. It can operate in either Heating or Cooling mode, making it ideal for new buildings or refurbs looking for reliable winter heating solutions that can be based on renewables.

Fits on narrow AC balconies, small rooftops and indoor plantrooms

Because of the compact chassis and side air-flow design, the largest capacity models require only 1 metre clearance above the unit, 0.6m behind and 0.2m in front, making them ideal for narrow AC balconies and small rooftops.

High external static pressure setting and integrated DC inverter fan enables placement in an ‘indoor’ plantroom or partially enclosed balcony, so that it can help you to keep the building external aesthetics for your premium look villa application for example.

Lowering the cost of centralized control systems

A common barrier to centralized control of a HVAC systems is the installation and commissioning cost. Hitachi Central Stations lower this barrier thanks to H-LINK wiring, enabling any type of wiring route based on layout rather than on AC system structure. Units can be ‘daisy-chained’ together so that an indoor unit can connect to the nearest indoor unit rather than back to a central control point.

Affordable indoor air quality upgrades

The optional Ionizer Kit for Ducted indoor units which is effective on inhibiting SARS-CoV-2[1] and more than 99% effective on a range of viruses and bacteria[2]

Enhancing indoor comfort for occupants

With CrowdSense[3] technology, select units can determine how many people are in a space and adjust the cooling or heating capacity accordingly, so the room will never get too hot or cold, whether it’s crowded or almost empty

Direct/Indirect Air Flow[4] - occupants can choose whether they want to directly feel airflow. The presence of occupants is detected through a motion sensor which divides the room into 4 zones – one for each louvre. For each of the 4 zones served by a cassette, air can be served either Direct or Indirect. Therefore one zone could receive direct airflow while another has indirect airflow, catering for different personal preferences of people occupying the same area.


[1] Refers to Ionizer Kit test conducted Aug/Sept 2020 at Nara Medical University. Ozone Density : 0.1ppm. Tested Sample: Ozone generator which keeps 0.5~3.0 ppm emission in a space of 6.7L after 3 min generation. Host Cells: VeroE6/TMPRSS2. Washing-out Solution: SCDLP medium. Testing Condition: 19.6~21.8℃, 50.0~59.7%RH (Humidity) . Infectivity Measurement Method: Virus Plaque Assay.
[2] For example, [Escherichia coli] [Staphylococcus aureus], [Influenzas virus] and others. Numerous tests on various products.
[3] Requires optional motion sensor kit available for some Cassette and Suspended Ceiling models
[4] Available on select Cassette models. Requires optional cassette panel with Motion Sensor