Greenheck SMD-301 User Manual

SMD-301

Application

Model SMD-301 is a leakage rated smoke damper with extremely low leakage. The SMD-301 serves the function of both a control damper and 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 kPa) Model SMD-301 may be installed vertically (with blades running horizontal) or horizontally and is rated for airflow and leakage in either direction.

UL555S Leakage Rating Leakage Class: I Operational Rating Maximum Velocity: 4000 fpm (20.3 m/s) Maximum Pressure: 4 in. wg (1 kPa) Maximum Temperature: 350ºF (177ºC) depending on actuator

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 Bronze 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

Double Flange

Smoke Dampers

Steel Airfoil Blades

UL 555S Leakage Class I

Model SMD-301 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 (#2330-0981:104)

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

Standard 555S (Listing #R13317)

Greenheck Fan Corporation certifies that the model SMD-301 shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance

with AMCA Publication 511 and comply with the requirements of the AMCA Certified Ratings Programs. The AMCA Certified Ratings Seal applies to air performance ratings only.

Size Limitations

W x H

Minimum

Size

2000 fpm (10.2 m/s)

Inches 8 x 6

mm 203 x 152

4000 fpm (20.3 m/s)

Inches 8 x 6

mm 203 x 152

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: 120V, 24V, 230V, Pneumatic

Maximum Size

Single

Section

32 x 50 or

36 x 48

813 x1270 or

914 x 1219

32 x 50 or

36 x 48

813 x 1270 or

914 x 1219

Multiple Section

128 x 100 or

256 x 50

3251 x 2540 or

6502 x 1270

128 x 50

3251 x 1270

*W&H dimensions furnished approximately 1/4 in. (6mm) undersize. Right hand drive is shown. Left hand drive is available upon request. Damper also may be rotated 180° in the field for opposite side drive.

(Add sleeve thickness for overall sleeved damper dimension)

Installation instructions available at www.greenheck.com

5D 6D

4 (W) (H)

3.14

5D 6D

Options & Pressure Drop SMD-301

Options for SMD-301:

• 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/ft3 (1.201 kg/m3).

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.

5D 6D

Figure 5.3

Figure 5.2

4 (W) (H

3.14

)

Figure 5.5

12x12

48x12

24x24

36x36

12x48

AMCA 5.2 Pressure Drop SMD-301

5D 6D

4 (W) (H)

3.14

Velocity

(fpm)

Pressure Drop

(in. wg)

Velocity

(fpm)

Pressure Drop

(in. wg)

Velocity

(fpm)

Pressure Drop

(in. wg)

Velocity

(fpm)

Pressure Drop

(in. wg)

Velocity

(fpm)

Pressure Drop

(in. wg)

500 0.03 500 0.01 500 0.01 500 0.01 500 0.02 1000 0.12 1000 0.06 1000 0.061000 0.051000 0.08 1500 0.26 1500 0.12 1500 0.121500 0.12 1500 0.18 2000 0.46 2000 0.22 2000 0.222000 0.21 2000 0.33 2500 0.72 2500 0.34 2500 0.342500 0.332500 0.51 3000 1.04 3000 0.49 3000 0.493000 0.483000 0.74 3500 1.41 3500 0.67 3500 0.673500 0.653500 1.00 4000 1.84 4000 0.87 4000 0.884000 0.854000 1.31

12in. X 48 in.

(

305mm x 1219mm) 48 in. x 12 in. (1219mm x 305mm) 24 in. x 24 in. (610mm x 610mm) 36in. x 36 in. (914mm x 914mm) 12 in. x 12 in. (305mm x 305mm)

* Sizes are in inches.

Greenheck Fan Corporation certifies that the model SMD-301 shown herein is licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication 511 and comply with the requirements of the AMCA Certified Ratings Programs. The AMCA Certified Ratings Seal applies to air performance ratings only.

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