Installation Instructions #452763, included with every damper shipment. Sleeves can be field fabricated or factory furnished as a complete damper/sleeve assembly. See Factory Sleeve 
DFD-155 specifications
The Greenheck Fan DFD-155 is a high-performance direct drive fan designed specifically for a variety of applications within commercial and industrial facilities. Known for its efficiency and reliability, the DFD-155 stands out as a key component in ventilation and air management systems.One of the main features of the DFD-155 is its direct drive system. This eliminates the need for belts or pulleys, resulting in less maintenance and improved energy efficiency. Direct drive systems also provide a more compact design, making it easier to integrate the fan into existing layouts or new construction projects.
The DFD-155 is equipped with advanced technologies that enhance its performance. It includes a low-profile design, which reduces space requirements while still delivering high airflow rates. This fan is capable of handling a wide range of airflows, making it suitable for both light and heavy-duty applications. The DFD-155 operates quietly, ensuring minimal noise disruption, which is particularly advantageous in environments requiring focused attention, such as offices or labs.
Constructed from high-quality materials, the DFD-155 is designed for longevity and durability. It features corrosion-resistant coatings, achieving compatibility with various demanding environments, including those with high humidity or corrosive elements. This makes the fan an excellent choice for exhaust applications in kitchens, warehouses, and manufacturing plants.
Energy efficiency is another hallmark of the DFD-155. It meets or exceeds industry standards, helping businesses reduce their operational costs. The fan’s performance is optimized through dynamic balancing and advanced motor control technologies, allowing for smooth operation and lower energy consumption.
Installation and maintenance of the DFD-155 are straightforward. The fan's design allows for easy access to components, which simplifies routine checks and repairs. Additionally, the DFD-155 is compatible with various control systems and can be integrated with Building Management Systems (BMS) for enhanced monitoring and control capabilities.
In summary, the Greenheck Fan DFD-155 excels in performance and reliability while offering a host of features that make it an exceptional choice for ventilation solutions. Its direct drive system, low-profile design, durability, and energy efficiency characteristics make it well-suited for a variety of applications, ensuring optimal air management for any facility.