Greenheck Fan Ventilation Hood DFDR XXX User Manual

Part Number 462721  
DFDR-XXX, ssDFDR-XXX,  
FDR-XXX, and ssFDR-XXX MoDels  
112 Hour Round Fire Dampers  
Vertical and Horizontal Mount  
Installation, Operation and Maintenance Instructions  
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)  
“Ul ClassIFIeD (see complete marking on product)”  
“Ul ClassIFIeD to Canadian safety standards (see  
complete marking on product)”  
UL Standard 555 (Classification #R13317)  
saFety WaRNING:  
ReCeIVING aND HaNDlING  
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.  
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).  
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.  
INstallatIoN sUPPleMeNts  
Refer to the appropriate Greenheck installation  
supplements for special rquirements:  
• Steel Deck Supplement  
Due to continuing research, Greenheck reserves the right to change specifications without notice.  
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.  
 
Installation - Continued  
• Place the damper and attached retainer plate into the  
wall/floor opening.  
2.sleeVe leNGtH aND Wall/FlooR  
tHICKNess  
• If a second retaining plate is being used, secure it on  
the opposite side of the wall/floor  
Insert the damper assembly into the prepared opening,  
to appropriate depth (see page 2, Fig. 1).  
Do Not PosItIoN RetaINeR Plate(s) IN  
FRaMe GRooVe  
Recommended maximum and minimum insertion depth  
C
can be exceeded as long as the  
of the damper  
L
blade remains within the plane of the wall/floor.  
Verify position, blade orientation, and actuator  
clearance then tighten the retainer plate clamping  
screws. The retainer plate(s) must overlap the wall/  
floor opening a minimum of 1 inch (25mm). Secure  
the retainer plate(s) to the wall using appropriate  
fasteners (minimum #8 sheet metal screws) at the  
four corners of each retainer plate when two retainer  
plates are used and also within 3 in. (19mm) of the  
center of each plate when one retainer plate is used.  
IMPoRtaNt saFety DaNGeR! To avoid causing  
death or serious bodily harm to building occupants, do  
not insert screws into the damper frame unless used  
for duct connection within 2 in. (51mm) of the frame  
end.  
The sleeve may extend a maximum of 6 in. (152mm)  
beyond both sides of the wall or floor. Recommended  
standard sleeve lengths for various wall/floor  
thicknesses are:  
Opening + 2 in. Min.  
Fig. 2  
Wall/Floor Thickness  
Dimension (Tw)  
Inches (mm)  
Sleeve Length  
Dimension (L)  
Inches (mm)  
Up to 61 2-65)  
61 2 81 2-65 2 5-6)  
81 2 -01 25-6 2 567)  
-3 5/8 2346)  
-5 5/8 2397)  
-7 5/8 2448)  
Wall/Floor Opening  
= Nominal Size + 7/8 in. Min.  
Clamping  
Screw  
Nut  
1.00 in. Typ.  
Fasteners  
3.DUCt to sleeVe CoNNeCtIoNs  
Dampers are supplied with sleeves from the factory  
and can be installed without the need for additional  
field installed sleeves.  
Retaining  
Gauge of factory furnished sleeve determines the  
Plate Assembly  
type of duct to sleeve connections required (see table  
below). Any duct connection other than the breakaway  
connections are considered rigid.  
Clamping Screw  
Sleeve Gauge  
(mm)  
Duct Dimension  
Maximum  
Inches (mm)  
Type of Duct to  
Sleeve Connection  
Permitted  
5.Recommended Preparation of openings in  
Wood and Metal stud Walls  
• Frame wall openings as shown below. (see Fig. 3)  
• Double vertical studs are not required for openings  
36 in. x 36 in. (914mm x 914mm) or smaller.  
• Gypsum wall board must be fastened 12 in. (305mm)  
on center to all stud and runner flanges surrounding  
opening. (see Fig. 4)  
-0 ga. 23.5)  
-4 ga. 25)  
54 26-0)  
Rigid or Breakaway  
-6 ga. 2-.5)  
50 ga. 2-mm)  
54 26-0)  
Breakaway only  
Sleeve thickness must not be less than the gauge of the  
connecting duct.  
• All construction and fasteners must meet the  
requirements of the appropriate wall design (See UL  
UL Standard 555 requires all ducts to terminate at fire damper  
sleeves.  
Fire Resistance Directory) and/or local codes.  
DAMPER FRAME  
Fig. 3  
4.seCURING tHe DaMPeR/sleeVe asseMBly  
to Wall aND FlooR oPeNINGs  
METAL  
STUD  
1.00  
MIN  
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.  
DO NOT PLACE  
RETAINER PLATE  
IN THIS GROOVE.  
DAMPER FRAME  
• The retaining plate(s) will open up for easy installation  
when the clamping screw is loosened. If necessary,  
remove the clamping screw and nut (see Fig. 2).  
WOOD  
STUD  
1.00  
MIN  
(IMPORTANT: The clamping mechanism should  
face away from the wall/floor). Retainer plate(s) are  
designed to mount flush to the wall/floor and hold the  
damper in the wall/floor opening.  
DO NOT PLACE  
RETAINER PLATE  
IN THIS GROOVE.  
3
 
6.Round Duct Connections  
Round duct connections shall be attached  
with #8 sheet metal screws as follows:  
• Ducts 22 in. (559mm) dia. and smaller shall have three  
screws.  
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.BYJNVN  
NFUBMꢂTUVETꢅ  
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.BYJNVN  
NFUBMꢂTUVETꢅ  
$FJMJOHꢂ3VOOFS  
ꢀꢁꢂJOꢃ  
• Ducts larger than 22 in. (559mm) dia. and up to  
including 24 in. dia. shall have five screws.  
Note: All breakaway connections described may  
have duct sealant, PA2084T Duct Sealant Adhesive  
manufactured by Precision or DP1010 Water Base Duct  
Sealant manufactured by Design Polymetrics, applied  
in accordance with SMACNA recommendations.  
ꢁꢄꢂJOꢃꢂPꢃDꢃ  
.BYJNVN  
ꢁꢂJO ꢃ  
ꢁꢂJO ꢃ  
ꢁꢂ1BOIFBE  
4DSFXT  
ꢀꢆꢂJOꢃꢂPꢃDꢃ  
.BYJNVN  
ꢀꢆꢂJOꢃꢂPꢃDꢃ  
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XPPEꢂTUVETꢅ  
XPPEꢂTUVETꢅ  
Fig. 4  
'MPPSꢂ3VOOFS  
DFDR-XXX Blade orientation  
30°  
Axle  
Axle  
30°  
Axle  
30° Off Horizontal  
(Maximum)  
30° Off Horizontal  
(Maximum)  
Normal  
Damper Maintenance  
Dampers do not typically require maintenance as long as they are kept dry and clean. If cleaning is necessary, use mild  
detergents or solvents. If lubrication is desired for components such as axle bearings, do not use oil-based lubricants  
or any other lubricants that attract contaminants such as dust.  
Dampers must be maintained, cycled, and tested at intervals not less than every six months and in accordance with the  
latest editions of NFPA 90A & 92A, UL864 and local codes.  
Damper troubleshooting  
The following is a possible cause and correction list for common concerns with the dampers.  
Symptom  
Possible Cause  
Corrective Action  
Frame is out of round causing blades to  
interfere with frame  
Adjust frame such that it is round  
Damper does not fully open and/or fully  
close  
Screws interfere with blade  
Contaminants on damper  
Locate screws and remove  
Clean with a non2oil based solvent 2see  
Damper Maintenance)  
Link separated  
Heat  
Replace link  
Copyright © 2006 Greenheck Fan Corporation  
462721 DFDR-XXX FS Rev. 4 December 2006  
4
 

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