Model SMD-301V Smoke Dampers

Steel Airfoil Blades UL 555S Leakage Class I

Application

Model SMD-301V is a vertical blade low leakage rated smoke damper. High strength airfoil blades insure lowest resistance to airflow in HVAC systems with velocities to 4000 fpm (20.3m/s) and 4 in. wg (1.0 kPa).

UL555S Leakage Rating

Leakage Class:

I

Operational Rating

2000 fpm (20.3 m/s) up to

Maximum Velocity:

 

100 in. x 32 in. H

 

(2540mm x 813mm) or

 

4000 fpm (20.3 m/s) up to

 

50 in. x 32 in. (1270mm x 813mm)

Maximum Pressure:

4 in. wg (1 kPa)

Maximum Temperature:

350ºF (177ºC)

Standard Construction

Frame: 5 in. x 1 in. (127mm x 25mm) galvanized steel hat channel with reinforced corners. A low profile head and sill are used on sizes less than 17 in. (432mm) high to maximize free area and performance.

Blades: Double skin airfoil shape of galvanized steel with full length structural reinforcement. 14 ga. (2 mm) equivalent thickness.

Seals: Extruded silicone rubber blade seals. Flexible stainless steel jamb seals.

Linkage: Concealed in jamb.

Axles: 1/2 in. (13mm) dia. plated steel.

Bearings: 304 stainless steel

Size Limitations:

Minimum Size:

6 in. W x 8 in. H

Maximum Size:

(152mm W x 203mm H)

 

Single Section:

50 in. W x 32 in. H

 

(1270mm W x 813mm H)

Multiple Section:

100 in. W x 32 in. H

 

(2540mm W x 813mm H)

Optional Features:

 

Model SMD-301V meets the requirements for smoke dampers established by:

National Fire Protection Association

NFPA Standards 92A, 92B, 101 & 105

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

CSFM California State Fire Marshal

Leakage (Smoke) Damper Listing (#3230-0981:104)

“UL CLASSIFIED (see complete marking on product)”

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

Standard 555S (Listing #R13317)

W*

H*

OCI (Open closed indication switches)

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

Transitions (R, C, O)

POC retaining angles

Momentary Switch

Sealed transitions and sleeves

*W&H dimensions furnished approximately 1/4 in. (6mm) undersize.

Installation instructions available at www.greenheck.com

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Greenheck Fan SMD-301V dimensions Application, Standard Construction, Size Limitations, Optional Features

SMD-301V specifications

The Greenheck Fan SMD-301V is a high-performance, energy-efficient fan that is widely recognized in the HVAC industry for its innovative design and advanced features. This model, part of the SMD series, is engineered to deliver superior airflow while ensuring low energy consumption, making it an ideal choice for various applications such as commercial buildings, industrial facilities, and institutional environments.

One of the main features of the SMD-301V is its direct drive motor design. This configuration eliminates the need for belts and pulleys, reducing maintenance requirements and enhancing reliability. The motor is also specifically designed for high efficiency, which helps to lower operating costs. With this direct drive attribute, Greenheck ensures quieter operation and a more compact physical footprint, which is often necessary in tight installation spaces.

The SMD-301V is equipped with a backward-inclined impeller, a design that enhances performance by optimizing airflow and minimizing noise levels. This impeller type is known for its ability to maintain efficiency under varying airflow conditions, making it suitable for both constant and variable air volume applications. The fan is capable of providing a stable airflow even in challenging environments, which is a significant advantage when dealing with fluctuating demand.

Another significant characteristic of the SMD-301V is its robust construction. Built from high-quality materials, including corrosion-resistant coatings, it is designed to withstand harsh environmental conditions and ensure long life. Additionally, the fan features an integrated control system, allowing for precise adjustments and enhanced performance monitoring. This integration offers users the opportunity to optimize their systems for maximum efficiency and ease of operation.

The SMD-301V meets rigorous industry standards for performance and safety, making it a reliable choice for various applications. Its compliance with Energy Star guidelines aligns with sustainability initiatives, further highlighting its appeal to environmentally conscious organizations.

In summary, the Greenheck Fan SMD-301V stands out due to its advanced engineering, energy-efficient operation, and user-friendly features. Its combination of a direct drive motor, backward-inclined impeller design, and robust construction make it a top choice for anyone seeking reliable ventilation solutions. The integration of modern control technologies ensures optimal performance, making it an essential component for efficient HVAC systems.