Maximum Assembly Tables; Sleeve Length Requirements - Greenheck DFD Series Installation, Operation And Maintenance Manual

Maximum Assembly Tables

When multiple sections are shipped unassembled, installer shall fasten dampers together. The table shows
maximum sizes for multiple section dampers. Dampers that are two or more sections tall must be factory
assembled. Note: All dimensions are shown in inches (W x H). * Sizes listed refer to the damper size, not transition
size.
Damper Model
FD-100 , FD-300, FD-310, SSFD-350
FD-150
FD-110
SSFD-150
FD-350
KFD-150
KFD-110
SSKFD-150
KFD-350
SSKFD-350
DFD-150, DFD-110
DFD-350
DFD-310
SSDFD-110, SSDFD-150. SSDFD-350
FD-150X
DFD-150X
Sleeve Requirements
All fire dampers must be installed in a steel sleeve of the required gauge and length. Note that DFD-150X and
FD-150X series dampers are provided with an integral sleeve. See Table on page 9 for required minimum sleeve
gauges. Maximum sleeve thickness is 10 gauge (3.5mm). Sleeve inside dimensions must equal damper outside
dimensions.
Sleeves shall extend a maximum of 6 in. (152mm) beyond the wall or floor opening on each side. When a factory
mounted access door is incorporated as a part of the sleeve, the sleeve may extend a maximum of 16 in. (406mm)
beyond the wall or floor opening on the access door side.
Maximum Single
Mounting
Section Damper Sizes*
Vertical 48 X 48 (1219mm x 1219mm)
Vertical or Horizontal 48 X 48 (1219mm x 1219mm)
Vertical or Horizontal 48 x 48 (1219mm x 1219mm)
Vertical 48 X 48 (1219mm x 1219mm)
Horizontal 36 x 36 (914mm x 914mm)
Vertical 48 x 48 (1219mm x 1219mm)
Horizontal 40 x 40 (1016mm x 1016mm)
Vertical or Horizontal 36 x 16 (914mm x 406mm)
Vertical or Horizontal 36 x 16 (914mm x 406mm)
Vertical 36 x 16 (914mm x 406mm)
Vertical 36 x 16 (914mm x 406mm)
Horizontal 36 x 16 (914mm x 406mm)
Vertical 36 x 16 (914mm x 406mm)
Vertical 36 x 36 (914mm x 914mm)
24 x 18 (610mm x 457mm)
Horizontal
30 x 30 (762mm x 762mm)
Vertical 36 x 36 (914mm x 914mm)
24 x 18 (610mm x 457mm)
Horizontal
30 x 30 (762mm x 762mm)
Vertical 36 x 36 (914mm x 914mm)
Horizontal 30 x 30 (762mm x 762mm)
Vertical 30 x 30 (762mm x 762mm)
Vertical or Horizontal 48 x 48 (1219mm x 1219mm)
Vertical 36 x 36 (914mm x 914mm)
Horizontal 30 x 30 (762mm x 762mm)
Maximum Multi-Section
Damper Sizes*
-
96 x 48 (2438mm x 1219mm) or
120 x 40 (3048mm x 1016mm)
96 x 48 (2438mm x 1219mm)
96 X 48 (2438mm x 1219mm) or
120 X 40 (3048mm x 1016mm)
-
-
80 x 40 (2032mm x 1016mm)
96 x 48 (2438mm x 1219mm) or
120 x 40 (3048mm x 1016mm)
96 x 48 (2438mm x 1219mm)
96 X 48 (2438mm x 1219mm) or
120 X 40 (3048mm x 1016mm)
-
80 x 40 (2032mm x 1016mm)
-
72 x 48 (1828mm x 1219mm) or
60 x 60 (1524mm x 1524mm) or
120 x 30 (3048mm x 762mm)
48 x 36 (1217mm x 914mm)
-
-
48 x 36 (1217mm x 914mm)
-
-
-
-
-
-
Curtain Fire Dampers
5