Greenheck DFD Series User Manual

Support mullion:
14 ga. 5 in. wide for
vertical mount dampers;
12 ga. 9 in. wide for
horizontal mount dampers
Figure 5: Single sleeve around outside with support
mullion
Figure 6: Two individually sleeved units with no mullions
Figure 7: Multiple section damper wiring
Maximum Assembly Tables
Damper Model
Maximum Single
Section Size
(inches)
Maximum
Overall Size for
Multi-Section
Dampers
(inches)
DFD-210 36 x 36 or 32 x 50 128 x 96
DFDAF-310 32 x 50 144 x 96
FSD-211, 212, 213 36 x 48 or 32 x 50 144 x 96
FSD-211M, 212M 30 x 36 144 x 72
FSD-231M 36 x 36 72 x 48
FSD-311, 312 32 x 50 144 x 96
FSD-311M, 312M 32 x 50 128 x 96
FSD-331, DFDAF-330 30 x 48 144 x 96
IMO-310 32 x 50 NA
IMO-311 32 x 50 NA
SEDFD-210,
SEFSD-211
24 x 30 48 x 30
SSFSD-211 24 x 30 48 x 30
Horizontal Mount
Note: FSD model dampers fitted with a fusible link closure device are limited to single section sizes.
Damper Model
Maximum Single
Section Size
(inches)
Maximum
Overall Size for
Multi-section
Dampers
(inches)
DFD-210 36 x 36 or 32 x 50 128 x 100
DFDAF-310 32 x 50 128 x 100
FSD-211, 212, 213 36 x 48 or 32 x 50 128 x 100
FSD-311, 311M,
312, 312M
32 x 50 128 x 100
FSD-311V 50 X 32 100 x 32
FSD-331, DFDAF-330 32 x 36 or 30 x 48 120 x 96
IMO-311
32 x 50 NA
32 x 50 NA
SEDFD-210,
SSDFD-210
24 x 30 or 22 x 36 48 x 30
SEFSD-211
SSFSD-211
24 x 30 or 22 x 36 88 x 72
Vertical Mount
Multiple Section Damper Wiring
Dampers greater than 84 in. (2134mm) high will ship in
two ship sections. Conduit whips from ship section will
need to be wired to junction box on ship section with
the closure device (see Figure 7).
When fire and fire smoke dampers are ordered with an
open/close blade position indicating device (included
with the OCI, RRL/OCI, and TOR accessories) one
device is provided per row of damper sections. For
example, a two section high damper assembly will be
provided with two open/closed indicating devices.
Note that all damper sections on a given row are
operated by a single jackshaft and thus forced to
operate in unison. On two section high dampers,
although the two open/closed indicators are not factory
wired together, it is common industry practice to field
wire the two open switches in series and the two closed
switches in series so that the system monitoring the
damper will detect a fault if either row of dampers fails
to reach the end of stroke condition.
Multi-Blade Fire and Combination Fire Smoke Dampers 5

Greenheck DFD Series Specifications

General

Brand	Greenheck
Model	DFD Series
Category	Fire and Smoke Dampers
Language	English