The DX-Kit, which consists of a control box and expansion valve box, seamlessly connects Hitachi VRF equipment with third-party air handling units (AHU). DX-Kit is specially designed to allow connection of direct expansion coils (DX coil) in a field-supplied Air Handling Unit (AHU) to INVERTER-DRIVEN MULTI-SPLIT SYSTEM HEAT PUMP/HEAT RECOVERY outdoor units for cooling and heating applications. DX-Kit is composed of Control Box for system control with PCB and all the electronic, and Expansion Valve Box for refrigerant cycle control in which an electrical expansion valve is located.
Combines VRF system with third-party AHU
Provides three types of AHU temperature control:
– Inlet air
– Outlet air
– External signal control
Compatible with multiple AHU types including return air, return air/outside air mix, and heat recovery. Flexible installation for expansion valve box and control box with IP54 Enclosure rating.