Greenheck Fan OFSD-212 Manual De Usuario

APPLICATION

Model OFSD-212 is an ‘out of the wall’ high performance combina-

tion fire smoke damper with 3V style blades. OFSD-212 is approved 

for use in walls, partitions, and floors with fire resistance ratings less 

than 3 hours. Removal of wall grille allows access to actuator and 

other components. This model's operational ratings of 2000 fpm (10.2 

m/s) and pressures to 4 in. wg (1 kPa). OFSD-212 shall be installed 

vertically (with blades running horizontal) or horizontally and is rated 

for airflow and leakage in either direction.

Ratings

UL555 Fire Resistance Rating:
 

Fire Rating:  

1

1

⁄

2

 

hours in walls  

 

Dynamic Closure Rating:  Actual ratings are size dependent 

 

Max. Velocity:  

2000 fpm (10.2 m/s) 

 

Max. Pressure:  

4 in. wg (1 kPa) - differential 

 

 

pressure

 

Leakage Class: 

II 

 

Operational Rating: 

Actual ratings are size dependent 

 

Max. Velocity: 

2000 fpm (10.2m/s) 

 

Max. Pressure: 

4 in. wg (1 kPa) 

 

Max. Temperature: 

350ºF (177ºC)- depending upon the 

 

 

actuator

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. 

 

Blades:  

16 ga. (1.5mm) galvanized steel, 

 

 

reinforced with 3 longitudinal 

 

 

structurally designed vee's. 

 

Seals: 

Extruded silicone rubber blade seals. 

 

 

Flexible stainless steel jamb seals 

 

Linkage: 

Concealed in jamb 

 

Closure device: 

UL listed 165°F (74ºC) RRL 

 

Axles: 

1

⁄

2

 in. (13mm) dia. plated steel  

 

Bearings: 

Bronze sleeve type 

 

Sleeve: 

Galvanized; wrapped with thermal 

 

 

blanket

 

Size Limitations:

 

Minimum Size:  

12 in. W x 12 in. H 

 

 

(305mm x 305mm) 

 

Maximum Size:  

Single section: 36 in. W x 36 in. H 

 

 

(914mm x 914mm)

Optional Features:

• POC retaining Angles 
• RRL/OCI (open closed indication switches) 
• 165ºF (74ºC), 212ºF (100ºC), 250ºF (121ºC), 350ºF (177ºC) RRL’s 
  available 
• TOR (remote override allows damper to perform smoke 
  management functions during fire emergency.) 
• Electric actuators  
• Momentary switch 
• Security bars 
• Sealed transition and sleeves

Model OFSd-212

Out Of Wall Combination FIRE SMOKE dAMPERS

“uL CLASSIFIEd (see complete marking on 

product)”

“uL CLASSIFIEd to Canadian safety standards 

(see complete marking on product)”

 

Standard 555 & 555S (Listing #R13317) 

* W & H dimensions furnished approximately ¼ in. (6mm) undersize.

  (Add blanket thickness (1⁄8 in.[3mm]) and sleeve thickness for overall 

sleeved damper dimension)

  Oversize wall opening as follows:

  Nominal damper size plus 3⁄8 in.(9.5mm) (see Page 6)

Model OFSD-212 meets the requirements for fire 

dampers, smoke dampers and combination fire 

smoke dampers established by:
National Fire Protection Association 

    NFPA Standards 80, 90A, 92A, 92B, 101 & 105
IBC International Building Codes
ICBO  uniform Building Codes  
CSFM California State Fire Marshal 
  Fire Damper Listing (#3225-0981:103)
  Leakage (Smoke) Damper Listing (#3230-0981:104)
New York City (MEA listing #260-91-M)

R

Greenheck Fan Corporation certifies that the 

model OFSD-212 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