Greenheck Fan SSSMD-201 User Manual

Model SSSMD-201 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)

Application

Model SSSMD-201 is a 304 stainless steel leakage rated smoke 

damper with 3V style blades. The SSSMD-201 has been qualified to 

2000 fpm (10.2 m/s) and 4 in. wg (1 kPa) for operational closure in 

emergency smoke control situations.  Model SSSMD-201 may be 

installed vertically (with blades running horizontally) or horizontally 

and is rated for airflow and leakage in either direction.

Ratings

 

Leakage Class:  

l 

 

Pressure:  

4 in. wg (1 kPa) - differential 

 

 

pressure 

 

Velocity:  

Operational rated to 2000 fpm 

 

 

(10.2 m/s) 

 

Temperature:  

350°F (177ºC) with all actuators. 

 

 

Higher temperature ratings with

 

 

some actuators. 

Standard Construction

 

Frame:  

5 in. x 1 in. (127mm x 25mm) 16 ga. 

 

 

(1.5mm) 304 stainless 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:  

16 ga. (1.5mm) 304 stainless steel, 

 

 

reinforced with 3 longitudinal 

 

 

structurally designed vee’s.  

 

Seals: 

Flexible 304 stainless steel jamb 

 

 

seals. 

 

Linkage: 

304 stainless steel - concealed in 

 

 

jamb. 

 

Axles: 

1

/

2

 in. (13mm) dia. 304 stainless 

 

 

steel. 

 

Bearings: 

304 stainless steel sleeve type.

Size Limitations

 

Minimum Size: 

8 in. W x 6 in. H 

 

 

(203mm W x 152mm H) 

 

Maximum Size:  

 

Single Section -  

32 in. W x 50 in. H 

 

 

(813mm W x 1270mm H) 

 

 

36 in. W x 48 in. H 

 

 

(914mm W x 1219mm H) 

 

Multiple Section -  

144 in. W x 100 in. H 

 

 

(3658mm W x 2438mm H) 

 

 

288 in. W x 50 in. H 

 

 

(7315 mm W x 1270mm H)

Optional Features

• OCI (Open closed indication switches)

•  Electric or pneumatic actuators to accomplish smoke 

management and system functions.

• Fail open

Model SSSMD-201

Smoke Dampers

*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.

H*

W*

LH

RH

“UL CLASSIFIED (see complete marking on 

product)”

“UL CLASSIFIED to Canadian safety standards 

(see complete marking on product)”

 

Standard 555S (Listing #R13317)

R

Greenheck Fan Corporation certifies that the model 

SSSMD-201 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 Pro-

grams. The AMCA Certified Ratings Seal applies to 

air performance ratings only. 

Installation instructions available at www.greenheck.com