Greenheck SSFD-150 Installation Instructions page 2

Factory Sleeve Option
SSFD-150 Fire Dampers are available in factory furnished sleeves. Sleeves are 304 stainless steel and are available in
16 and 20 ga. (1mm - 1.5mm) thicknesses and lengths up to 36 in. (914mm).
"K" dimension specifies location of damper within the sleeve. Minimum is 4 in. (102mm), maximum is "L" less 4 in.
(102mm), which allows for mounting angle installation and duct connection at each end of sleeve. If "K" dimension is
not specified, the damper will be centered in the sleeve.
Note: If using access doors, the doors should be installed on the "K" side of the damper.
Type B with sleeve
Sleeve
H*
K
Damper C L Damper Frame
Location
L
Overall Sleeve Length
Type B corner profile
Damper
W*
When sealed option is selected, B
transitions will need to be field sealed in
the area where duct to sleeve connection
is made.
SSFD-150