Damper Sizing Information, Specifications

Damper Sizing Information

Dampers larger than maximum single section size are supplied as a factory assembly of two or more sections of equal size. The following figures show maximum damper section size and assembly configurations for multi-section dampers.

Multi Section

Single Section

30”

24” 48”

24”

Transitioned Damper Dimensions

When a fire/smoke damper is being used in conjunction with round or oval ductwork, the SSFSD-211 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. (
D*+ 2 in. (	51mm) +T	s				W*+	2 in. (51mm)+T
							2 in. (51mm)+T
								s
			W*+ 2	in. (51mm)+T	s			s
			W*+ 2	in. (51mm)+T

D* + 2 in. (51mm)+T	s	H*+ 2 in. (51mm)+T	s
		H*+ 2 in. (51mm)+T	s
		21/8 in.
		(54mm)
		(54mm)

16 in. (406mm)	D*	16 in. (406mm)
16 in. (406mm)		16 in. (406mm)
Min.		Min.

TYPE R

Specifications

		H* + 2 in. (51mm)+T	s
	H*		s
1	H*		21/8 in. H*
2 /8 in.
(54mm)			(54mm)
W*			W*
			W*
		16 in. (406mm)
		Min.
TYPE O			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)

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 the latest edition of NFPA 80, 90A, 92A, 92B, 101, & 105 and further shall be tested in accordance with the latest edition of UL Standards 555 and 555S. Dampers shall have a UL 555 fire rating of 11⁄2 hours and be of low leakage design qualified to UL555S leakage class I.

Each damper /actuator combination shall have a UL555S elevated temperature rating of 250°F (121°C) minimum and shall be operational and dynamic 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 (24 or 230) volt operation or pneumatic type for 25 psi minimum (30 psi maximum) operation.

The Damper Manufacturers submittal data shall certify all air performance pressure drop data is licensed 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. Dampers shall be labeled with the AMCA Air Performance Seal.

Damper blades shall be 16 ga. (1.5mm) 304 stainless steel 3V type with three longitudinal grooves for reinforcement. Blades shall be completely symmetrical relative to their axle pivot point, presenting identical resistance to airflow and operation in either direction through the damper (blades that are non-symmetrical relative to their axle pivot point or utilize blade stops larger than 1/2 in. [13mm] are unacceptable). Damper frames shall be 304 stainless steel formed into a structural hat channel shape with reinforced corners. Bearings shall be 304 stainless sleeve type rotating in extruded holes in the damper frame. Jamb seals shall be stainless steel compression type.

All UL 555 and 555S Dynamic Closure Ratings, Operational Ratings and Leakage Ratings shall be qualified for airflow and pressure in either direction through the damper. UL ratings shall allow for mounting damper vertically (with blades running horizontal) or horizontally.

Basis of design is Greenheck Model SSFSD-211.

SSFSD-211 Rev. 5 March 2008

SSFSD-211 specifications

The Greenheck Fan SSFSD-211 is a high-performance fan designed to meet the diverse needs of various commercial and industrial applications. Known for its robust engineering and efficient operation, the SSFSD-211 stands out as an essential component in ventilation systems, providing quality airflow with optimal energy efficiency.

One of the key features of the SSFSD-211 is its durable construction. Made from high-quality materials, the fan is built to withstand harsh environments, ensuring longevity and reliable performance. The design includes a robust motor assembly and a corrosion-resistant housing, making it ideal for applications exposed to moisture or other challenging conditions.

The SSFSD-211 incorporates advanced aerodynamic design principles which facilitate increased airflow and reduced noise levels. This fan model utilizes precision-engineered blades that are optimized for airflow efficiency, allowing it to deliver high volumes of air while minimizing energy consumption. The low noise operation is particularly beneficial in settings where maintaining a quiet environment is crucial.

Energy efficiency is a hallmark of the SSFSD-211. The fan is designed to operate at lower energy costs without sacrificing performance. Utilizing high-efficiency motors and variable speed drives, the fan can adjust its performance in real time, responding to the changing demands of the system and ensuring optimal operation at all times. This capability not only saves energy but also reduces overall operational costs.

Furthermore, the SSFSD-211 is equipped with advanced control options that enhance its flexibility and ease of use. Building managers and facility operators can integrate the fan into existing building management systems, allowing for remote monitoring and control. This feature aids in ensuring that ventilation systems operate efficiently and effectively, meeting the requirements of indoor air quality standards.

In addition to its performance features, the SSFSD-211 also prioritizes maintenance and serviceability. The design allows for easy access to the motor and other critical components, simplifying routine inspections and maintenance tasks. This accessibility helps to minimize downtime and maintain the efficiency of the ventilation system.

Overall, the Greenheck Fan SSFSD-211 is an exceptional choice for those in search of a reliable, efficient, and high-performing fan for a variety of ventilation applications. With its combination of innovative design, energy efficiency, and user-friendly features, the SSFSD-211 continues to set a standard in the field of commercial and industrial ventilation solutions.