Model DFD-M150
Dynamic Rated Fire Dampers
APPLICATION
1
1 /2 Hour Fire Resistance Rating (UL555)
Model DFD-M150 is approved for use in walls, floors and
partitions with fire resistance ratings less than 3 hours.
This model carries a 11/2 hour UL fire damper label. UL
555 classifies dynamic rated fire dampers for use in HVAC
systems that are operational in the event of fire.
4 Hour Fire Resistance Rating (BS476)
Model DFD-M150 meets the requirements for fire dampers
established by:
National Fire Protection Association
(NFPA Standards 80, 90A & 101)
Underwriters Laboratories Standard 555 (Listing #R-13317)
BOCA National Building Codes
ICBO Uniform Building Codes (UBC Standard 43-7)
SBCCI Standard Building Codes
Model DFD-M150 has also been tested in accordance with
BS476 to 4 hours at Warrington Fire, UK, and is approved
for fire partitions of 4 hours or less where British Standards
are required.
CONSTRUCTION
Galvanized steel (in gauges required by UL listing R-13317)
New York City (MEA listing #260-91-M)
California State Fire Marshall
(Listing #3225-981:102 for use in walls)
INSTALLATION
All fire damper installations require the use of sleeves,
angles and methods described in Greenheck Fire Damper
Installation Instructions #452763, included with every
damper shipment. Sleeves can be field fabricated or factory
furnished as a complete damper/sleeve assembly. See
Factory Sleeve Option below for details.
British Standard BS476
Tested to 4 hours at Warrington Fire, UK
“UL CLASSIFIED (see complete marking on product)”
“UL CLASSIFIED to Canadian safety standards (see
complete marking on product)”
Standard 555 (Listing #R13317)
W*
Features:
• Stainless steel closure springs
• Fusible links (69° C for BS476, 74°C standard
for UL, 100°C available)
* O
H*
H*
• Can be mounted horizontally or vertically.
W*
94mm
These dimensions are furnished approximately 6mm undersize.
*
94mm
TYPE A
TYPE B
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FACTORY SLEEVE OPTION
DFD-350 Fire Dampers are available in factory furnished sleeves. Sleeves are
galvanized steel and are available in 1.0mm - 1.5mm thicknesses and lengths up to
914mm.
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“K” dimension specifies location of damper within the sleeve. Minimum is 102mm,
maximum is “L” less 102mm, which allows for mounting angle installation and
duct connection at each end of sleeve. If “K” dimension is not specified, it will be
provided as one half of “L” dimension (damper centered in sleeve).
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When sealed option is selected, B transitions
will need to be field sealed in the area where
duct to sleeve connection is made.
Type B corner profile
Type B with sleeve
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Overall Damper
Dimensions
DFD-M150 Type B
SIZING AND ASSEMBLY DATA
Dampers larger than maximum single section size are supplied in 2 or more sections of
equal size. If ordered with a factory sleeve, multi-section dampers are factory assembled
ready for installation. If ordered without a factory sleeve, multi-section dampers require field
assembly. (See Greenheck Fire Damper Installation Instructions #452763)
The following chart and illustrations show minimum and maximum damper section size and
assembly configurations for multi-section dampers.
H*
O*
SIZE LIMITATIONS
Vertical or Horizontal
Single
Section
Multi-
Section
mm
W*
Minimum
Maximum
102 x 102
914 x 813
NA
1219 x 813
H*
76
O*
Installation of sizes larger than the maximums shown requires
approval of the authority having jurisdiction.
127
152
178
203
229
254
279
305
330
356
381
406
457
483
508
533
559
584
610
660
686
711
737
762
787
813
838
864
889
914
102
127
152
178
203
229
254
279
305
330
356
381
406
432
457
483
508
533
559
584
610
635
660
686
711
737
762
787
813
1
Maximum Single Section
Dimensions
2
Multi Section Limitations
Maximum damper height is 1143mm when combination width is 2438mm or less.
813mm
Max.
1143mm
Max.
914mm
Max.
2438mm
Max.
3
Multi Section Limitations
Maximum damper height is 940mm when combination width is
greater than 2438mm and less than or equal to 3048mm.
940mm
Max.
These dimensions are furnished
approximately 6mm undersize.
(Dimension in mm)
*
3048mm
Max.
DFD-M150 Type R
Sizing and Assembly Data
Dampers larger than maximum single section size are supplied as a
factory assembly of two or more sections of equal size.
Transition is centered on damper frame (or frame assembly for
multiple section dampers).
SIZE LIMITATIONS
Vertical or Horizontal Vertical Only
Minimum
Maximum
76mm dia.
NA
76mm min.
1829mm max.
1168mm dia.
1829mm dia.
Copyright © 2006 Greenheck Fan Corporation
DFD-M150 Rev. 4 December 2006
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