Greenheck DFD Series Installation, Operation And Maintenance Manual page 37

Installation continued....
Face & Bypass
When the height of a face & bypass vertical style (FBV) is greater than 84 in. (2134mm), the damper sections are
shipped separate, requiring field assembly. Before fastening damper sections together, the non-actuated damper
section will need to be flipped upside down so that the linkage is on the same side as the actuated damper.
After damper sections are fastened together, attach
interconnecting angle as shown in Figure 4.
Maximum Single Section Size
Damper Model
VCD-20, VCD-23,
SEVCD-23
VCD-33, VCD-34,
VCD-40, VCD-42,
SEVCD-33
VCD-43
VCD-20V, VCD-23V
VCD-33V, VCD-34V,
VCD-42V, VCD-43V
FBH-33
FBH-43
FBV-33
FBV-43
FBH-23
FBV-23
Maximum Overall Size for
W x H in. (mm) Multi-Section Dampers
48 x 74
(1219 x 1880)
60 x 74
(1524 x 1880)
60 x 74
(1524 x 1880)
74 x 48
(1879 x 1219)
74 x 60
(1879 x 1524)
Face: 60 x 74
(1524 x 1880)
Bypass: 60 x 74
(1524 x 1880)
Face: 60 x 74
(1524 x 1880)
Bypass: 60 x 74
(1524 x 1880)
Face: 48 x 74
(1219 x 1880)
Bypass: 48 x 74
(1219 x 1880)
Face: 48 x 74
(1219 x 1880)
Bypass: 48 x 74
(1219 x 1880)
Figure 4
Unlimited
Unlimited
288 x 222
(7315 x 5639)
148 x 96
(3759 x 2438)
148 x 120
(3759 x 3048)
Face: 96 x 74
(2438 x 1880)
Face: 120 x 74
(3048 x 1880)
Bypass: 120 x 74
(3048 x 1880)
Face: 96 x 74
(2438 x 1880)
Face: 96 x 74
(2438 x 1880)
Bypass: 96 x 74
(2438 x 1880)
VCD, FBH, and FBV Series 5