Model SMD-302M
Smoke Dampers
Steel Airfoil Blades
UL 555S Leakage Class II
APPLICATION |
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Model | smoke dampers established by: | |||
with class II leakage. The | National Fire Protection Association | |||
a control damper and smoke damper. High strength airfoil blades | ||||
NFPA Standards 92A, 92B, 101 & 105 | ||||
insure lowest resistance to airflow in HVAC systems with velocities | ||||
IBC International Building Codes | ||||
to 2000 fpm (10.2m/s) and 4 in. wg (1 kPa) Model | ||||
be installed vertically (with blades running horizontal) or horizontally | New York City (MEA listing | |||
and is rated for airflow and leakage in either direction. | CSFM California State Fire Marshal | |||
UL 555S Leakage Rating | Leakage (Smoke) Damper Listing | |||
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Leakage Class: | II |
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Operational Rating | 2000 fpm (10.2m/s) |
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Maximum Velocity: | “UL CLASSIFIED (see complete marking on | |||
Maximum Pressure: | 4 in. wg (1 kPa) | product)” | ||
Maximum Temperature: 250ºF (121ºC) | “UL CLASSIFIED to Canadian safety standards | |||
Standard Construction | (see complete marking on product)” | |||
| Standard 555S (Listing #R13317) | |||
Frame: | 5 in. x 1 in. (127mm x 25mm) |
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| galvanized steel hat channel with |
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| reinforced corners. A low profile |
| Greenheck Fan Corporation certifies that the | |
| head and sill are used on sizes less |
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| than 17 in. (432mm) high to |
| to bear the AMCA Seal. The ratings shown | |
| maximize free area and |
| are based on tests and procedures performed | |
| performance. |
| in accordance with AMCA Publication 511 | |
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| and comply with the requirements of the | ||
Blades: | Double skin airfoil shape of |
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| AMCA Certified Ratings Programs. The | |||
| galvanized steel with full length | R | AMCA Certified Ratings Seal applies to air | |
| structural reinforcement. 14 ga. |
| performance ratings only. | |
| (2 mm) equivalent thickness. |
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Seals: | Extruded silicone rubber blade |
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| seals. Flexible stainless steel jamb |
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| seals. |
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Linkage: | Concealed in jamb. |
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Axles: | 1/2 in. (13mm) dia. plated steel. |
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Bearings: | Bronze sleeve type. |
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Size Limitations:
Minimum Size: | 8 in. W x 6 in. H |
Maximum Size: | (203mm W x 152mm H) |
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Single Section: | 32 in. W x 50 in. H |
| (813mm W x 1270mm H) |
Multiple Section: | 128 in. W x 100 in. H |
| (3251mm W x 2540mm H) |
Optional Features: |
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• Galvanized steel sleeves. |
• Stainless steel bearings |
• OCI (Open closed indication switches) |
• Electric or pneumatic actuators to accomplish smoke |
management and system functions. |
• Transitions (R, C, O) |
• POC retaining angles |
• Momentary Switch |
• Smoke detectors |
LH
W*
H*
RH
• Sealed transitions and sleeves |
*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