Transitioned Damper Dimensions

When a combination fire smoke damper is being used in conjunction with round or oval ductwork, the FSD-311V can be supplied in a factory sleeve with round or oval transitions on both ends of the sleeve. Dampers should be ordered to the duct dimensions. Drawings below show overall damper size.

D*+ 2 in. (

 

 

 

 

 

 

 

 

51mm) +T

s

 

W*+

2 in. (51mm)+T

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

s

 

 

 

 

W*+ 2

in. (51mm)+T

s

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

D* + 2 in. (51mm)+T

 

s

 

H*+ 2 in. (51mm)+T

s

 

 

 

 

 

 

 

 

21/8 in.

 

 

 

 

 

 

 

(54mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16 in. (406mm)

D*

16 in. (406mm)

 

Min.

 

Min.

TYPE R

 

H* + 2 in. (51mm)+T

s

 

H*

 

 

21/8 in.

 

 

 

 

 

 

 

(54mm)

 

 

 

 

 

 

 

 

 

W*

16 in. (406mm) Min.

TYPE O

21/8 in. H*

(54mm)

W*

TYPE C

*These dimensions are furnished approximately 1/4 in. (6mm) undersize, except round and oval dimensions which are approximately 1/8 in. (3mm) undersize. Ts = (2)(Sleeve Thickness)

Specifications

Combination Fire Smoke Dampers meeting the following specifications shall be furnished and installed where shown on plans and/or as described in schedules. Dampers shall meet the requirements of NFPA 80, 90A, 92A, 92B, 101 & 105 and further shall be tested, rated and labeled in accordance with the latest edition of UL Standards 555 and 555S. Dampers shall have a UL555 fire rating of 1½ hours and be of low leakage design qualified to UL 555S Leakage Class I.

Each damper /actuator combination shall have a UL555S elevated temperature rating of 250°F (121º C) minimum and shall be rated to operate at maximum design air flow at its installed location. Each damper shall be supplied with an appropriate actuator installed by the damper manufacturer at the time of damper fabrication. Damper actuator shall be (specifier select one of the following) electric type for 120 (or 24) Volt operation or pneumatic type for 25 psi minimum (30 psi maximum) operation.

Damper blades shall be of the double skin airfoil type and shall have an equivalent metal thickness of 14 ga. (2mm). Damper frame shall be galvanized steel formed into a structural hat channel shape with

reinforced corners. Bearings shall be 304 stainless steel rotating in extruded holes in the damper frame. Blade edge seals shall be silicone rubber designed to inflate and provide a tighter seal against leakage as pressure on either side of the damper increases. Jamb seals shall be stainless steel compression type. Blades shall be completely symmetrical relative to their axle pivot point, presenting identical resistance to airflow in either direction or pressure on either side of the damper.

Damper must be rated for mounting vertically (with blades running vertical) and be UL 555S rated for leakage and airflow in either direction through the damper. Each damper shall be supplied with 165°F (74°C) RRL.

The Damper manufacturer's submittal data shall certify all air performance pressure drop data is tested in accordance with the AMCA Certified Ratings Program for Test Figures 5.2, 5.3, and 5.5. Damper air performance data shall be developed in accordance with the latest edition of AMCA Standard 500-D.

The basis of design is Greenheck Model FSD-311V.

Copyright ©2007 Greenheck Fan Corporation

FSD-311V Rev. 3 June 2007

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Greenheck Fan FSD-311V installation instructions Transitioned Damper Dimensions, Specifications

FSD-311V specifications

The Greenheck Fan FSD-311V is a highly efficient, industrial-grade fan designed for a variety of commercial and residential applications. As a leading manufacturer of ventilation and air movement equipment, Greenheck has engineered the FSD-311V to deliver optimal performance, reliability, and energy efficiency.

One of the standout features of the FSD-311V is its versatile design, which allows it to function effectively in both supply and exhaust air applications. This adaptability makes it a preferred choice for facilities that require precise climate control, such as warehouses, manufacturing plants, and commercial kitchens. The fan is equipped with a direct drive motor that eliminates the need for belts or pulleys, reducing maintenance needs and enhancing durability.

In terms of technology, the FSD-311V boasts advanced aerodynamic design principles that contribute to its superior air performance. The fan blades are engineered with a specific pitch and curvature to optimize airflow while minimizing noise levels. This is particularly important in environments where ambient sound levels need to be controlled.

Another significant characteristic of the FSD-311V is its energy efficiency. The fan meets or exceeds various energy efficiency standards, making it an environmentally friendly choice for businesses looking to reduce their carbon footprint. By utilizing high-efficiency motors and components, the FSD-311V helps lower operational costs while delivering reliable performance.

The fan is also built for ease of installation and maintenance. Its modular design allows for quick and uncomplicated assembly, while the robust construction ensures longevity and resilience against harsh conditions. Additionally, the FSD-311V features access panels that facilitate easy inspection and service without extensive disassembly, minimizing downtime.

Safety is a key consideration in the design of the FSD-311V. It includes multiple safety features, such as thermal overload protection, to prevent overheating and potential equipment failure. This attention to safety ensures that the fan operates reliably in demanding environments.

In conclusion, the Greenheck Fan FSD-311V is a state-of-the-art solution for effective air movement and ventilation. With its versatile applications, energy-efficient operation, advanced technology, and robust design, it is an excellent choice for industries looking to enhance their environmental control systems while ensuring safety and reliability.