Greenheck MS7520A2015-B User Manual

Model SMD-302M

APPLICATION

Model SMD-302M is a leakage rated modulating smoke damper with class II leakage. The SMD-302M 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 2000 fpm (10.2m/s) and 4 in. wg (1 kPa) Model SMD-302M may be installed vertically (with blades running horizontal) or horizontally and is rated for airflow and leakage in either direction.

UL 555S Leakage Rating

Leakage Class: II Operational Rating Maximum Velocity: 2000 fpm (10.2m/s) Maximum Pressure: 4 in. wg (1 kPa) Maximum Temperature: 250ºF (121ºC)

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 1 in.

(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 II

Model SMD-302M 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)

Greenheck Fan Corporation certifies that the model SMD-302M 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

Inches 8 x 6 32 x 50 128 x 100

mm 203 x 152 813 x1270 3251 x 2540

Minimum

Size

Maximum Size

Single

Section

Multiple Section

OPTIONS:

• 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

*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)

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

Installation instructions available at www.greenheck.com

Pressure Drop Data SMD-302M

5D 6D

4 (W) (H)

3.14

5D 6D

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-302M

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 0.06 1000 0.05 1000 0.08 1500 0.26 1500 0.12 1500 0.12 1500 0.12 1500 0.18 2000 0.46 2000 0.22 2000 0.22 2000 0.21 2000 0.33 2500 0.72 2500 0.34 2500 0.34 2500 0.33 2500 0.51 3000 1.04 3000 0.49 3000 0.49 3000 0.48 3000 0.74 3500 1.41 3500 0.67 3500 0.67 3500 0.65 3500 1.00 4000 1.84 4000 0.87 4000 0.88 4000 0.85 4000 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-302M 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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