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Application
Model DFD-M210 is a multi-blade fire damper with 3V style blades.
The DFD-M210 has been qualified to 10.2 m/s (2000 fpm) and 1.0kPa
(4 in. wg.) for operation and dynamic closure in emergency fire
situations. Model DFD-M210 may be installed vertically (with blades
running horizontal) or horizontally and is rated for airflow in either
direction.
Model DFD-M210 has also been tested in accordance with BS476 to
4 hours at Warrrington Fire, UK, and is approved for fire partitions of 4
hours or less where British Standards are required.
Ratings
UL 555 Fire Resistance Rating
Fire Rating: 1
1
⁄2 Hours
Dynamic Closure Rating: Actual limits are size dependent
Maximum Velocity: 10.2 m/s (2000 fpm)
Maximum Pressure: 1 kPa (4 in. wg)
BS476 Fire Resistance Rating
Fire Rating:
4 hours
Standard Construction
Frame: 127mm x 25 mm (5 in. x 1 in.) 1.5mm
(16 gauge) galvanized steel hat
channel with reinforced corners. A
low profile head and sill are used on
sizes less than 432mm (17 in.) high to
maximize free area and performance.
Blades: 1.5mm (16 gauge) galvanized steel,
reinforced with 3 longitudinal
structurally designed vee’s.
Seals: Flexible stainless steel jamb seals.
Linkage: Concealed in jamb.
Fusible Link: UL listed 74ºC (165°F)
Axles: 13mm (
1
⁄2 in.) dia. plated steel.
Bearings: Bronze sleeve type.
Actuator: Manual quadrant.
Size Limitations
Minimum Size:
203mm W x 152mm H
(8 in. W x 6 in. H)
Maximum Size:
Single Section: 914mm W x 914mm H
(36 in. W x 36 in. H) or
813mm W x 1270mm H
(32 in. W x 50 in. H)
Multi Section: 1626mm W x 1270mm H
(64 in. W x 50 in. H)
Optional Features
•100ºC (212°F), 141ºC (286°F), and 177ºC (350°F) fusible links (UL only)
• 69°C (155°F) fusible links (BS476)
• Factory mounted sleeves
• Retaining angles
• Sleeve with integral flange on both sides
Model DFD-M210
Multi-Blade FIRE DAMPER
Steel 3V Blades
UL555 1
1
/2 Hour Fire Resistance Rating
4 hour Fire Resistance Rating (BS476)
* W & H dimensions furnished approximately 6mm (
1
/4 in.) undersize.
(Add sleeve thickness for overall sleeved damper dimension)
H
W
LH
RH
“UL CLASSIFIED (see complete marking on
product)”
“UL CLASSIFIED to Canadian safety standards
(see complete marking on product)”
Standard 555
(Listing #R13317)
Model DFD-M210 is intended for installation in
accordance with fire damper requirements
established by:
National Fire Protection Association
NFPA Standards 80, 90A & 101
ICBO Uniform Building Codes
IBC International Building Codes
SBCCI Standard Building Codes
British Standard BS476
Tested to 4 hours at Warrington Fire, UK
R
Greenheck Kunshan Co. Ltd. and Greenheck Fan
Corporation certifies that the model DFD-M210
shown herein is licensed to bear the AMCA
Seal. The ratings shown are based on tests and
procedures performed in accordance with AMCA
Publication 511 and comply with the requirements
of the AMCA Certified Ratings Programs. The
AMCA Certified Ratings Seal applies to air
performance ratings only.