Greenheck OFSD-211 - Manual

APPLICATION

Model OFSD-211 is approved for use in walls, partitions, and floors

with fire resistance ratings less than 3 hours. OFSD-211 is an ‘out of

the wall’ high performance combination fire smoke damper with 3V

style blades. 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). Model OFSD-211 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

UL555S Leakage Rating:

Leakage Class:

I

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:

½ 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-211

Out Of Wall Combination

FIRe SmOKe dAmPeRS

Steel 3V Blades

UL 555S Leakage Class I

UL 555 1

1

⁄

2

Hour Fire Resistance Rating

Horizontal or Vertical Mount

“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

1

⁄

4

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-211 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-211 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