AHU, The full name of the air handling unit is the "heart" and "lungs" of the central air conditioning system. It is a large metal box with various functional sections assembled inside for centralized air treatment (filtering, cooling, heating, humidification, dehumidification, conveying, etc.). The treated air is then distributed to each space for adjustment through an air duct. It is widely used in shopping malls, schools, hospitals, laboratories and other industrial and commercial places.

In the AHU box, the fan section is the heart, where the fan is commonly called the "supply fan" or "return fan" and is directly responsible for driving air circulation. Technological advances in the industry have always been centred on making these turbines "more efficient, quieter, smarter and more reliable." From fixed frequency to frequency conversion, AC to EC, from independent operation to system integration. Schniro can provide standardized and customized solutions for the industry. The product size is mainly 280-630mm. Each size has a different voltage configuration, design and motor selection.