Greenheck SMD-401M - Manual
Greenheck SMD-401M – Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.
Table of Contents:
- Page 2 – Pressure Drop Data; AMCA Test Figures
- Page 3 – Application Data; Damper Sideplate and Sleeve Dimensional Data; Sleeve
- Page 4 – Transitioned Damper Dimensions; Specifications; TYPE R
Model SMD-401M meets the requirements for smoke
dampers established by:
National Fire Protection Association
NFPA Standards 92A, 92B, 101 & 105
IBC International Building Codes
ICBO Uniform Building Codes
New York City
(MEA listing #260-91-M)
CSFM California State Fire Marshal
Leakage (Smoke) Damper Listing (#3230-0981:108)
“UL CLASSIFIED (see complete marking on
product)”
“UL CLASSIFIED to Canadian safety standards
(see complete marking on product)”
Standard 555S (Listing #R13317)
APPLICATION
Model SMD-401M is a class I leakage rated modulating smoke
damper. The model SMD-401M serves the function of
both a control damper and smoke damper. High strength airfoil
blades ensure the lowest resistance to airflow in HVAC systems
with velocities to 2000 fpm (10.2 m/s ) and 4 wg (1 kPa). Model
SMD-401M may be installed vertically (with blades running
horizontal) or horizontally and is rated for airflow and leakage in
either direction.
RATINgS
Leakage Class:
I
Operational Rating:
Actual ratings are size dependent.
Max. Velocity:
up to 2000 fpm (10.2 m/s)
Max. Pressure:
4 in. wg (1 kPa)
Temperature:
250°F (121ºC) with all actuators.
STANDARD CONSTRUCTION
Frame:
5 in. x 1 in. (127mm x 25mm)
galvanized steel hat channel with
reinforced corners. A low profile
head and sill are used on sizes
less than 17 in. (432mm) high to
maximize free area and
performance.
Blades:
Airfoil shape constructed of
heavy gauge extruded aluminum.
Structural reinforcement through
the entire length.
Seals:
Extruded silicone rubber blade
seals. Flexible stainless steel
jamb seals.
Linkage:
Concealed in jamb.
Axles:
1
⁄
2
in. (13mm) dia. plated steel.
Bearings:
Bronze sleeve type.
SIzE LIMITATIONS:
Minimum Size:
8 in. W x 8 in. H
(203mm W x 203mm H)
Maximum Size:
Single Section:
36 in. W x 36 in. H
(914mm W x 914mm H)
Multi Section:
144 in. W x 36 in. H
(3658mm W x 914mm H)
Optional Features:
• Galvanized steel sleeves.
• Stainless steel bearings
• OCI (Open closed indication switches)
• Electric or pneumatic actuators to accomplish smoke
management and system functions.
• POC Retaining angles
• Smoke detector
• Momentary switch
• Transitions (R, C, O)
• Sealed transitions and sleeves
SMD-401M
Smoke Dampers
Extruded Airfoil Blades
UL 555S Leakage Class I
*W&H dimensions furnished approximately
1
/
4
in. (6mm) undersize.
(Add sleeve thickness for overall sleeved damper dimension)
Right hand drive is shown. Left hand drive is available upon request.
H*
W*
LH
RH
Installation instructions available at www.greenheck.com
"Loading the manual" means you need to wait until the file loads and becomes available for online reading. Some manuals are very large, and the time they take to appear depends on your internet speed.
Summary
SMD-401M Pressure Drop Data This pressure drop testing was conducted in accordance with AMCA Standard 500-D using the three configurations shown. All data has been corrected to represent standard air at a density of .075 lb/ft 3 (1.201 kg/m 3 ). Actual pressure drop found in any HVAC system is a com...
Space Envelopes Required for Actuators and Accessories Externally mounted actuators always require space outside of the damper sideplate or sleeve. The “S” dimension illustrates the clearance required for various available actuators. On dampers less than 18 in. (457mm) high, actuators may also requi...
Transitioned Damper Dimensions When a fire/smoke damper is being used in conjunction with round or oval ductwork, the SMD-401M can be supplied in a factory sleeve with round or oval transitions on both ends of the sleeve. Dampers should be ordered to the duct dimensions. Drawings below show overall ...
