Greenheck Fan Ventilation Hood 463622 User Manual

Part number 463622  
DFD, FD, FSD Series  
Grille Installation  
Installation Instruction Supplement  
Refer to:  
‘Installation Instructions for FD, DFD, SSFD Models Fire’  
(Part #452763)  
‘Installation Instructions for FSD-XXX, DFD-XXX, CFSD-XXX, &  
SSFSD-XXX, Series Fire & Combination Fire Smoke Damper’  
(Part #461336)  
“UL CLASSIFIED  
(see complete marking on product)”  
“UL CLASSIFIED to Canadian safety standards  
(see complete marking on product)”  
Standards UL555 & UL555S  
‘Installation Instructions for FD & DFD 150X Series Curtain Fire  
Damper’ (Part #453946)  
Classifications filed at UL under Listing #R13317  
Steel stud  
Clearance Requirements  
There is no minimum clearance requirement between the wall opening and  
the sleeve exterior. However, to facilitate installation, clearances between the  
wall opening and the damper sleeve are recommended. Although there is no  
maximum allowable clearance, a minimum overlap of 1 in. (13mm) between the  
wall and the flange/retaining angle must be maintained.  
#10 sheet metal  
screws spaced 6 in.  
on center and a  
maximum of 2 in.  
from the corners  
(minimum of 2  
screws per side).  
Screw into rear  
portion of the studs  
so as to avoid space  
conflicts with the  
grille assembly.  
5/8 in. x 1 in.  
16 ga. angles  
minimum  
1. Single Flange Method  
Damper/sleeve assemblies must be installed in wall openings using flanges  
and sheet metal screws as illustrated and describe below. This method is only  
applicable to 11 hour rated dampere the 3 hour damper and dampers larger than  
36 in. x 36 in. (914mm x 914mm) will require a minimum of 11 in. x 11 in. (38mm  
x 38mm) legs.  
• Flange on front (grille end) of sleeve must be a minimum of 16 ga. (1.6mm)  
steel and have a 5/8 in. minimum flange leg. Using #10 sheet metal screws,  
screw from inside of sleeve through the rear portion of the studs (as shown  
in Figure 1). Space screws a maximum of 6 in. (152mm) on center and a  
maximum of 2 in. (51mm) from the corners (minimum of two screws per side).  
No retaining angles are required on the side of wall opposite from the grille.  
2. Retaining Angle Method  
Damper/sleeve assemblies must be installed in wall and floor openings using  
retaining angles on at least one side of the wall or floor as described below:  
• Retaining angles must be a minimum of 16 ga. (1.6mm) and have a minimum of  
11 in. x 11 in. (38mm x 38mm) legs (see Figure 2).  
Fig. 1  
• For grille installation on fire damper up to 36 in. x 36 in. (914mm x 914mm)  
maximum, angle legs may be reversed and one leg inserted into the wall/floor  
opening providing the required clearance is maintained between angle leg  
fastener and the wall/floor opening. Note: Screws used to attach grille are  
allowed to penetrate reversed angle leg.  
Damper sleeve  
Grille (supplied  
by others)  
• Retaining angles must be attached to the damper using one or more of the  
following methods of attachment (refer to label on outside of sleeve for ‘No  
Screw’ area):  
Tack or spot welds  
• #10 (3 in. .19mmm max.) sheet metal screws  
1 in. (6mm) bolts and nuts  
• 3/16 in. (4mm) steel pop rivets  
A minimum of two connections per side, top and bottom, 12 in. (305mm) O.C.  
maximum. The angles must be attached to all four sides of the sleeve. Ensure  
that attachment device does not interfere with the operation of the damper and  
the free movement of the damper blades. The angles need not be attached to  
each other at the corners.  
• Retaining angles must be attached to the partition using one of the methods  
below (see single side retaining angle-vertical mount supplement part  
#462099):  
• Drywall screws of a length such that the screw engages the steel  
stud/track by 1 in. (13mm) (steel framing).  
• Drywall screws of a length such that the screw engages the wood  
stud by 13 in. (44mm) (wood framing).  
• Steel anchors or self tapping concrete screws penetrating masonry or  
block 11 in. (31mm).  
Fig. 2  
11/2 in. x 11/2 in.  
16 ga. angles  
(minimum)  
Grille (supplied  
by others)  
Copyright ©2007 Greenheck Fan Corporation  
Grille Installation Supplement R3 July 2007  
 

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