Greenheck Smoke Dampers SMD-203 Specifications

Application
Model SMD-203 is a leakage rated smoke damper with 3V style
blades. The SMD-203 has been qualified to 2,000 fpm (10.2 m/s) and
4 in. wg (1 kPa) for operational closure in emergency smoke control
situations. Model SMD-203 may be installed vertically (with blades
running horizontally) or horizontally and is rated for airflow and leakage
in either direction.
Ratings
Leakage:
Pressure:
Velocity:
Temperature:
Standard Construction
Frame:
Blades:
Seals:
Linkage:
Axles:
Bearings:
Size Limitations
Minimum Size:
Maximum Size:
Single Section -
Multiple Section -

Optional Features

• 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
• Sealed transition and sleeves
• Fail open
UL 555S leakage class III
4 in. wg (1 kPa) - differential pressure
Consult factory for sizes available in
6 in. wg (1.5 kPa)
Operational rated to 2000 fpm
(10.2 m/s). Rating is for airflow in
either direction through damper.
350°F (177°C) depending on the
actuator
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.
16 ga. (1.5mm) galvanized steel,
reinforced with 3 longitudinal
structurally designed vee's.
Flexible stainless steel jamb seals.
Concealed in jamb.
⁄ in. (13mm) dia. plated steel
1
2
Bronze sleeve type
8 in. W x 6 in. H
(203mm W x 152mm H)
32 in. W x 50 in. H
(813mm W x 1270mm H)
36 in. W x 48 in. H
(914mm W x 1219mm H)
144 in. W x 100 in. H
(3658mm W x 2540mm H)
288 in. W x 50 in. H
(7315 mm W x 1270mm H)
Model SMD-203 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-203 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
R
Programs. The AMCA Certified Ratings Seal
applies to air performance ratings only.
LH
H*
* W&H dimensions furnished approximately
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
Model SMD-203
Smoke Dampers
Steel 3V Blades
UL 555S Leakage Class III
W*
RH
1 / in. (6mm) undersize.
4