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DFDR-XXX, ssDFDR-XXX, 

FDR-XXX, and ssFDR-XXX MoDels

 

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 Hour Round Fire Dampers

Vertical and Horizontal Mount

Part Number 462721

saFety WaRNING:

Improper installation, adjustment, alteration, 
service or maintenance can cause property 
damage, injury or death. Read the installation, 
operating, and maintenance instructions thoroughly 
before installing or servicing this equipment.

This manual is the property of the owner, and is required for future maintenance. Please leave it with the owner when 
the job is complete.

WaRRaNty

Greenheck warrants this equipment to be free from 
defects in material and workmanship for a period of one 
year from the purchase date. Any units or parts which 
prove to be defective during the warranty period will 
be repaired or replaced at our option. Greenheck shall 
not be liable for damages resulting from misapplication 
or misuse of its products. Greenheck will not be 
responsible for any installation or removal costs. 
Greenheck will not be responsible for any service work 
or backcharges without prior written authorization. 

Due to continuing research, Greenheck reserves the right to change specifications without notice.

“Ul ClassIFIeD (see complete marking on product)”

“Ul ClassIFIeD to Canadian safety standards (see 

complete marking on product)”

 

UL Standard 555 (Classification #R13317)

DFDR-XXX, SSDFDR-XXX, FDR-XXX, and SSFDR-XXX 

Model Dampers are intended for installation in accordance 

with fire damper requirements established by:

National Fire Protection association 

    NFPA Standards 80, 90A, & 101

BoCa  National Building Codes
ICBo  Uniform Building Codes
IBC International Building Codes  
sBCCI  standard Building Codes
New york City 

(MEA listing #260-91-M)

ReCeIVING aND HaNDlING

Upon receiving dampers, check for both obvious 
and hidden damage. If damage is found, record all 
necessary information on the bill of lading and file 
a claim with the final carrier. Check to be sure that 
all parts of the shipment, including accessories, are 
accounted for.
Dampers must be kept dry and clean. Indoor storage 
and protection from dirt, dust and the weather is highly 
recommended. Do not store at temperatures in excess 
of 100°F (37°C).

INstallatIoN sUPPleMeNts

Refer to the appropriate Greenheck installation 
supplements for special rquirements:

• Steel Deck Supplement

Installation, Operation and Maintenance Instructions

Summary of Contents for DFDR-XXX

Page 1: ...ntinuing research Greenheck reserves the right to change specifications without notice UL CLASSIFIED see complete marking on product UL CLASSIFIED to Canadian safety standards see complete marking on product UL Standard 555 Classification R13317 DFDR XXX SSDFDR XXX FDR XXX and SSFDR XXX Model Dampers are intended for installation in accordance with fire damper requirements established by National ...

Page 2: ...red to prevent overspray if wall texturing or spray painting will be performed within 5 feet of the damper Excessive dirt or foreign material deposits on damper can cause torque requirements to exceed damper design 7 Caulking is not allowed between the damper sleeve and the wall or floor opening annular space However caulking may be applied to the retaining plates and a field applied sealant may b...

Page 3: ...BLY TO WALL AND FLOOR OPENINGS Damper assemblies must be installed in wall floor openings using a single retaining plate on either side of the wall floor or by using a retaining plate on both sides of the wall floor The use of a second retaining plate is allowed but is not necessary A single retaining plate is provided with the dampers A second retaining plate can be ordered as an option The retai...

Page 4: ...P D BYJNVN XPPE TUVET JO P D BYJNVN XPPE TUVET JO Fig 4 4 DFDR XXX Blade Orientation Normal 30 Off Horizontal Maximum 30 Off Horizontal Maximum Axle Axle Axle 30 30 Round duct connections shall be attached with 8 sheet metal screws as follows Ducts 22 in 559mm dia and smaller shall have three screws Ducts larger than 22 in 559mm dia and up to including 24 in dia shall have five screws NOTE All bre...

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