Greenheck Fan dimensions SMD-401M Smoke Dampers, Ratings, Standard Construction

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SMD-401M

Smoke Dampers

Extruded Airfoil Blades

UL 555S Leakage Class I

APPLICATION

Model SMD-401M is a class I leakage rated modulating smoke

Model SMD-401M meets the requirements for smoke

damper. The model SMD-401M serves the function of

dampers established by:

both a control damper and smoke damper. High strength airfoil

National Fire Protection Association

blades ensure the lowest resistance to airflow in HVAC systems

NFPA Standards 92A, 92B, 101 & 105

with velocities to 2000 fpm (10.2 m/s ) and 4 wg (1 kPa). Model

IBC International Building Codes

SMD-401M may be installed vertically (with blades running

ICBO Uniform Building Codes

horizontal) or horizontally and is rated for airflow and leakage in

New York City (MEA listing #260-91-M)

either direction.

CSFM California State Fire Marshal

 

Ratings

Leakage Class:

I

Operational Rating: Actual ratings are size dependent.

Max. Velocity:

up to 2000 fpm (10.2 m/s)

Max. Pressure:

4 in. wg (1 kPa)

Temperature:

250°F (121ºC) with all actuators.

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:

Airfoil shape constructed of

 

heavy gauge extruded aluminum.

 

Structural reinforcement through

 

the entire length.

Seals:

Extruded silicone rubber blade

 

seals. Flexible stainless steel

 

jamb seals.

Linkage:

Concealed in jamb.

Axles:

1⁄2 in. (13mm) dia. plated steel.

Bearings:

Bronze sleeve type.

Size Limitations:

Minimum Size:

8 in. W x 8 in. H

 

(203mm W x 203mm H)

Maximum Size:

 

Single Section:

36 in. W x 36 in. H

 

(914mm W x 914mm H)

Multi Section:

144 in. W x 36 in. H

 

(3658mm W x 914mm H)

Leakage (Smoke) Damper Listing (#3230-0981:108)

“UL CLASSIFIED (see complete marking on product)”

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

Standard 555S (Listing #R13317)

LH

H*

RH

W*

Optional Features:

•Galvanized steel sleeves.

•Stainless steel bearings

•OCI (Open closed indication switches)

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

•POC Retaining angles

•Smoke detector

•Momentary switch

•Transitions (R, C, O)

•Sealed transitions and sleeves

*W&H dimensions furnished approximately 1/4 in. (6mm) undersize. (Add sleeve thickness for overall sleeved damper dimension)

Right hand drive is shown. Left hand drive is available upon request.

Installation instructions available at www.greenheck.com

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Contents SMD-401M Smoke Dampers Optional FeaturesRatings Standard ConstructionAmca Test Figures SMD-401M Pressure Drop DataDamper Size 12 in. x 12 305mm x 305mm Damper Size 24 in. x 24 610mm x 610mmActuators and Accessories Damper Sideplate and Sleeve Dimensional DataApplication Data Space Envelopes Required forSpecifications Transitioned Damper Dimensions

SMD-401M specifications

The Greenheck Fan SMD-401M is a highly efficient and versatile air movement solution designed for a variety of commercial and industrial applications. As part of Greenheck's extensive lineup of fans, the SMD-401M combines advanced engineering with innovative technology to meet the demanding needs of HVAC systems.

One of the significant features of the SMD-401M is its energy efficiency. The fan incorporates a high-performance motor that is designed to reduce energy consumption while delivering optimal airflow. This makes it an excellent choice for facilities looking to lower operational costs and reduce their carbon footprint. Additionally, the fan is equipped with a direct-drive design, which enhances reliability by eliminating the need for belts and pulleys, reducing wear and maintenance for the user.

The SMD-401M also includes a durable construction using high-quality materials that ensure longevity and resistance to the elements. The casing is designed to withstand harsh environmental conditions, which makes this fan suitable for outdoor installation. The fan is also lightweight, allowing for easier handling and installation, further adding to its versatility.

Another defining characteristic of the SMD-401M is its quiet operation. The fan is engineered to minimize noise emissions, which is crucial for maintaining a comfortable environment in commercial spaces like offices, schools, or retail establishments. This acoustic performance does not come at the expense of airflow, as the SMD-401M is capable of delivering substantial volumes of air effectively.

Technologically, the SMD-401M features advanced controls that allow for precise adjustments to airflow rates and operational settings. This adaptability enables users to tailor the fan’s performance to specific requirements, enhancing overall system efficiency. Integration with building management systems is also supported, allowing for seamless connectivity and monitoring.

In summary, the Greenheck Fan SMD-401M stands out for its energy efficiency, low noise operation, durable design, and advanced control features. Its ability to perform in diverse environments while delivering reliable service makes it an exceptional choice for engineers, contractors, and facility managers alike. Whether used in ventilation systems or exhaust applications, the SMD-401M exemplifies Greenheck's commitment to quality, performance, and sustainability in air movement solutions.
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