A Daikin AHU is a high-performance, modular system designed to condition and circulate air as part of a central HVAC system. It acts as the "lungs" of a building, taking in outdoor or recirculated air, filtering it, and heating or cooling it before distributing it through the ductwork. Its modular design allows it to be customized with various sections for filtration, energy recovery, and precise humidity control.
The Daikin Vision (indoor) and Skyline (outdoor) series are engineered for maximum energy efficiency and exceptional indoor air quality (IAQ).
- Modular "Cabinet" Construction: The unit is built with double-wall panels, often featuring a thermal bridge-free design. This prevents condensation on the outside of the unit and significantly reduces energy loss, which is critical for meeting green building standards like LEED.
- Key Internal Sections:
- Filtration Bank: The prominent V-shaped sections in the image are the filter racks. These can hold various filter types, from standard pleated filters to high-efficiency HEPA filters, ensuring the removal of dust, pollen, and bacteria.
- Heating/Cooling Coils: Behind the panels, the unit contains copper-tube aluminum-fin coils. Chilled water, hot water, or refrigerant (DX) flows through these to adjust the air temperature.
- Fan Array: Many modern Daikin units use an ECM fan array (multiple smaller fans). This provides redundancy—if one fan fails, the others keep the building ventilated—and operates much more quietly than a single large fan.
- Safety and Maintenance:
- The unit features large access doors with high-quality gaskets to ensure a tight seal and easy access for technicians to replace filters or service the motor.
- The smooth interior surfaces are designed to be "anti-microbial," preventing the growth of mold or fungi within the unit.
- Applications:
- Ideal for hospitals, data centers, and commercial offices where precise control over air purity and temperature is a high priority.
