Direct Expansion A.H.U, with a built-in DX Coil through expansion directly of refrigerant, is one that applies CDU(Condensing Unit) or Gas Engine heat Pump, which can be operated without central cooling and heating system. Hot-water and water vapor is available for heating coils. in case of low overload on air conditioning and cooling, an electric heater can be set up.

Departments to require air conditioning, at the same time, cooling for room area/ hospitals, hotels, gymnasiums, churches.
Bio clean room in high technology industry facilities to require a precision control of normal air conditioning, cooling, temperature, and humidity.
Facilities to require separately running on air conditioning and cooling.