SMD-401M
Smoke Dampers
Extruded Airfoil Blades
UL 555S Leakage Class I
APPLICATION
Model | Model | |
damper. The model | 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 | |
ICBO Uniform Building Codes | ||
horizontal) or horizontally and is rated for airflow and leakage in | ||
New York City (MEA listing | ||
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
“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