Greenheck SMD-301V User Manual

Model SMD-301V

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 Maximum Velocity: 2000 fpm (20.3 m/s) up to

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)

Construction Standard Optional

Frame Material Galvanized Steel -

Frame Material Thickness

Frame Type

Blade Material Galvanized Steel -

Blade Material Thickness

Blade Type Double Skin Airfoil -

Linkage

Axle Bearings 304SS -

Axle Material Plated Steel -

Blade Seals Silicone -

Jamb Seals 304SS -

16 ga. (1.5mm) -

5 in. x 1in.

(127mm x 25mm)

hat channel

14 ga. (2mm)

Equivalent

Plated Steel Out

of Airstream,

Concealed in Jamb

Smoke Dampers

Steel Airfoil Blades

UL 555S Leakage Class I

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)

Size Limitations

W x H

Minimum

Size

2000 fpm (10.2 m/s)

Inches 6 x 8 50 x 32 100 x 32

mm 152 x 203 1270 x 813 2540 x 813

4000 fpm (20.3 m/s)

Inches 6 x 8 50 x 32 -

mm 152 x 203 1270 x 813 -

Maximum Size

Single

Section

Multiple Section

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

Features:

• Frames are constructed with reinforced corners. Low profile head and sill are used on sizes less than

17 in. high (432mm).

• Blades are double skin airfoil shape of galvanized steel with full length structural reinforcement

• Actuators: 24V, 120V, 230V, Pneumatic

Installation instructions available at www.greenheck.com

5D 6D

4 (W) (H)

3.14

5D 6D

AMCA 5.2 Pressure Drop SMD-301V

Options for SMD-301V:

• Factory mounted accessories

- Retaining angles

- Quick connect breakaway connections

- S & drive connections

- Access doors

• Greenheck test switches (GTS-3 & GTS-4)

• Momentary test switch

• POC retaining angles

• OCI (Open closed indication switches)

• Sealed transitions and sleeves

• Security bars

• Smoke detectors

• Transitions: R, C, O

Pressure Drop Data

This pressure drop testing was conducted in accordance with AMCA Standard 500-D using the three configurations shown. All data has been corrected to represent standard air at a density of .075 lb/ft

Actual pressure drop found in any HVAC system is a combination of many factors. This pressure drop information along with an analysis of other system influences should be used to estimate actual pressure losses for a damper installed in a given HVAC system.

AMCA Test Figures

Figure 5.3 Illustrates a fully ducted damper. This configuration has the lowest pressure drop of the three test configurations

because entrance and exit losses are minimized by straight duct runs upstream and downstream of the damper.

Figure 5.2 Illustrates a ducted damper exhausting air into an open area. This conﬁguration has a lower pressure drop than Figure 5.5 because entrance losses are minimized by a straight duct run upstream of the damper.

Figure 5.5 Illustrates a plenum mounted damper. This configuration has the highest pressure drop because of extremely high entrance and exit losses due to the sudden changes of area in the system.

(1.2 kg/m

5D 6D

Figure 5.3

Figure 5.2

4 (W) (H

3.14

)

Figure 5.5

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