SESMDR-501

Application

Smoke Dampers

UL 555S Leakage Class I

Model SESMDR-501 is a severe environment 316SS leakage round smoke damper with extremely low leakage. The SESMDR-501 has been qualified to 3,000 fpm (15.2m/s) and 4 in. w.g. (1 kPa) for operational closure in emergency smoke control situations, for use in HVAC system applications.

Ratings

Leakage:

Class I

Pressure:

4 in. wg (1 kPa) - differential pressure

Maximum Velocity:

3000 fpm (15.2 m/s)

Temperature:

350°F (177°C) depending on the actuator

Standard Construction

Frame/Sleeve: 20 ga. (1mm) 316 stainless steel integral sleeve

Blades: Double skin 316 stainless steel (14 ga. [2mm] equivalent) round style blades

Seals: Silicone rubber

Axles: 1⁄2 in. (13mm) dia. 316 stainless steel Bearings: 316 stainless steel

Model SESMDR-501 meets the requirements for smoke dampers established by:

National Fire Protection Association NFPA Standards 92A, 92B, 101 & 105

IBC International Building Codes SBCCI Standard Building Codes New York City (MEA listing #260-91-M)

California State Fire Marshall Listing #: 2330-0981:113

“UL CLASSIFIED (see complete marking on product)”

“UL CLASSIFIED to Canadian safety standards (see complete marking on product)”

Standard 555S (Listing #R13317)

Size Limitations:

Minimum Size: 6 in. diameter (152mm)

Maximum Size: 24 in. diameter (610mm)

Optional Features:

•Electric or pneumatic actuators to accomplish smoke management and system functions.

•Open/Close Indicator (OCI) for remote indication of blade position- not 316SS.

•14 ga. (2mm) or 16 ga. (1.5mm) integral sleeve

Specifications

True Round 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 92A, 92B, 101 & 105.

Dampers shall be tested, rated and labeled in accordance with the latest edition of UL Standards 555S. Dampers shall be UL labeled for use in dynamic systems. The damper shall have a dynamic closure airflow rating equal to or greater than the airflow at the damper’s installed location and a dynamic closure pressure rating of 4 in. wg (1 kPa).

Dampers shall have a UL 555S leakage rating of Class I and a temperature rating of 250º F (121ºC) minimum. Dampers shall have a UL555S operational airflow rating equal to or greater than the airflow at its installed location and an operational pressure rating of 4 in. wg (1 kPa). Damper actuators shall be factory mounted and qualified for use with the damper in accordance with UL555S.

D*

*Dimension furnished approximately 1⁄8 in. (3mm) undersize.

Installation instructions available at www.greenheck.com.

Damper actuators shall be (specified select one of the following) electric type for 120 (or 24) volt operation or pneumatic type for 25 psi minimum (30 psi maximum) operation. Manufacturer’s submittal data shall indicate actuator space requirements around the damper.

All UL555S 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 or horizontally.

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.

Basis of design is Greenheck’s model SESMDR-501.

Copyright © 2008 Greenheck Fan Corporation SESMDR-501 Rev. 7 June 2008

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Greenheck Fan SESMDR-501 specifications Smoke Dampers
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SESMDR-501 specifications

The Greenheck Fan SESMDR-501 is a state-of-the-art ventilation solution designed for various commercial and industrial applications. It stands out due to its robust design, exceptional performance, and energy efficiency, making it a preferred choice among HVAC professionals.

One of the main features of the SESMDR-501 is its high-efficiency motor that is specifically designed for optimal performance. This motor is incorporated with innovative technologies that reduce energy consumption while delivering consistent airflow. The fan's power options include both single-phase and three-phase configurations, which provides flexibility for different installation scenarios.

The SESMDR-501 is equipped with an advanced airfoil blade design, which enhances the overall efficiency of the unit. These blades are crafted to minimize noise levels, making the SESMDR-501 suitable for applications where acoustics are a concern, such as schools, offices, and hospitals. This fan ensures quiet operation without compromising on performance.

Another significant characteristic of the SESMDR-501 is its user-friendly control options. Equipped with variable speed drives, the fan allows for precise control over airflow, optimizing energy usage based on specific needs. This adaptability makes it an ideal choice for systems that require varying air volumes throughout the day.

Durability is key in the design of the SESMDR-501. Constructed from high-quality materials, the fan is resistant to corrosion and wear, ensuring long life and reduced maintenance. It is offered in various coatings and finishes, allowing customization to match specific environmental conditions.

Additionally, the SESMDR-501 adheres to industry standards, including those set by AMCA and UL, ensuring reliable performance and safety. It is compatible with many types of building automation systems, making it easy to integrate into existing HVAC infrastructures for improved operational efficiency.

In summary, the Greenheck Fan SESMDR-501 is a versatile and efficient ventilation solution that combines advanced technology with durability. Its features, including an efficient motor, quiet operation, user-friendly controls, and robust construction, make it an excellent choice for anyone seeking reliable air movement in commercial or industrial settings.
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