Other Configurations
VRF DX Kit
DX Kit for connecting AHU to VRF
Hitachi DX-Kit (Direct Expansion Kit) seamlessly connects Hitachi VRF equipment with third-party direct heat exchangers, such as air handling units (AHU) or air curtain equipment. Thanks to its various flexible benefits, it is suitable for different applications such as schools with gymnasiums, hotels, or factories. The kit consists of a control box and an expansion valve box.
Hitachi DX-Kit: Versatile AHU Connection
1 VRF ODU to 1 AHU: 50% < Connection Ratio against ODU ≤ 100%
1 VRF ODU to 1 AHU (Separate Type Heat Exchanger): 50% < Connection Ratio against ODU ≤ 100% (Maximum number of DX-kit connections = 5)
1 VRF ODU to Multiple AHUs: 50% < Connection Ratio against ODU ≤ 100% (Different capacity AHUs can be connected)
1 VRF ODU to Multiple AHU/IDU: Connection Ratio against ODU ≤ 110%
Precise temperature control
Inlet air temperature control
Outlet air temperature control
Duty control
Our direct expansion kit makes AC installation more flexible
It has an IP54 enclosure rating for the expansion valve box.
The maximum total piping length can be up to 1000m.
The height difference between the HVAC outdoor unit and AHU can be up to 50m.
The thermistor length can be up to 10m.
Plus, you can control and monitor it without needing to move from where you are using Hitachi's centralized controller, Central Station, which is available through H-LINK connection.
Products compatible with this equipment
air365 SideSmart
The World's First Slim Modular VRF Unit solves the hassle of finding the perfect fit for your space and capacity requirements.
air365 Max
air365 Max is an end-to-end VRF solution that maximizes heating and cooling while minimizing the environmental impact, thanks to its energy-efficient design.
