Greenheck HSD-401 Manual

These instructions apply to the installation of HSD-401 series leakage rated smoke dampers. Specific requirements in these
instructions are mandatory. These instructions meet the requirements of UL 555S UL listing R13317.
H*
W*
D
C
Document number 464604
HSD-401
Leakage Rated Smoke Dampers
Vertical or Horizontal Mount
“UL CLASSIFIED (see complete marking on
product)”
“UL CLASSIFIED to Canadian safety standards (see
complete marking on product)”
UL Standard 555S (Classification #R13317)
SAFETY WARNING:
Improper installation, adjustment, alteration,
service or maintenance can cause property damage,
injury or death. Read the installation, operating,
and maintenance instructions thoroughly before
installing or servicing this equipment.
This manual is the property of the owner, and is required for future maintenance. Please leave it with the owner when the
job is complete.
WARRANTY
Greenheck warrants this equipment to be free from
defects in material and workmanship for a period of one
year from the purchase date. Any units or parts which
prove to be defective during the warranty period will be
repaired or replaced at our option. Greenheck shall not
be liable for damages resulting from misapplication or
misuse of its products. Greenheck will not be responsible
for any installation or removal costs. Greenheck will not be
responsible for any service work or backcharges without
prior written authorization.
Due to continuing research, Greenheck reserves the right to change specifications without notice.
RECEIVING AND HANDLING
Upon receiving dampers, check for both obvious and
hidden damage. If damage is found, record all necessary
information on the bill of lading and file a claim with
the final carrier. Check to be sure that all parts of the
shipment, including accessories, are accounted for.
Dampers must be kept dry and clean. Indoor storage
and protection from dirt, dust and the weather is highly
recommended. Do not store at temperatures in excess of
120°F (49ºC).
HSD-401 Dampers are intended for installation
in accordance with smoke damper requirements
established by:
National Fire Protection Association
NFPA Standards 80, 90A, 92A, 92B, & 105
ICBO Uniform Building Codes
IBC International Building Codes
Installation, Operation and Maintenance Instructions
®

Item Description
1. Damper frame
2. Duct outlet
3. Fan (not limited to centrifugal)
4. 3/8 in. (10mm) minimum diameter bolts
5. Actuator
The actuators are to be installed to function per system
requirements and to be controlled by smoke detection
devices.
FAN ISOLATION APPLICATION
For air handling equipment isolation, leakage rated
dampers are designed to operate with blades running
horizontally. Dampers can be installed in a vertical
or horizontal position. Sealants and damper seal
materials meet the requirements of NFPA90A for smoke
developed rating (<50) and flame spread index (<25) as
tested per UL723/ASTME84-91A/NFPA 255. Dampers
can be attached to the fan system discharge or inlet
without being 24 in. (610mm) of a smoke barrier when
used as an air handling equipment isolation damper.
4
1
2
3
Size Limitations
* All multiple section assemblies are factory assembled.
5
in inches
(mm)
Maximum single
section size
Maximum single
section size when
multi-section
assembly
Maximum overall
multi-section size*
HSD-401 60 x 60
(1524 x 1524)
48 x 60
(1219 x 1524)
120 x 60
(3048 x 1524) or
48 x 120
(1219 x 3048)
1. SMOKE DAMPER REQUIREMENTS AND
APPLICATION
Smoke dampers are required to close and prevent the
passage of air and smoke through ducts or ventilation
openings in smoke barriers. Smoke dampers are also
applied in engineered smoke control systems to establish
air pressure differentials and thereby prevent the spread
of smoke. HSD-401 damper is designed to operate with
blades running horizontally. Dampers can be vertically or
horizontally installed at, in accordance with NFPA-90A,
or adjacent to the point where the duct passes thru the
smoke barrier.
2. LOCATION OF DAMPER IN DUCTWORK
Place the damper assembly in its proper position relative
to the barrier. The plane of the closed damper blades
must be within 24 in. (610mm) of the rated smoke barrier
and before any duct inlets or outlets.
3. ATTACHING DAMPER TO THE DUCT
HSD-401 damper is a flange mounted to the duct, sleeve,
or wall opening with 3/8 in. (10mm) minimum diameter
bolts and spaced a maximum of 6 in. (152mm) apart, on
center. Dampers can be attached directly to the fan, if
required.
4. SEALING THE INSTALLATION
After installing the damper in the ductwork, seal the
joint between the damper frame and the duct using Dow
Corning RTV 732 Sealant. Make sure to press the sealant
into the joint to guarantee a proper seal. Use the minimum
amount of material required to completely seal the joint.
5. ACTUATOR CONNECTIONS
Electrical and/or pneumatic connections to damper
actuators should be made in accordance with wiring and
piping diagrams developed in compliance with applicable
codes, ordinances and regulations.

Damper does not
fully open and/or fully
close
Damper does not
operate
Damper Troubleshooting
The following is a possible cause and correction list for common concerns with the dampers.
Damper Maintenance
Dampers do not typically require maintenance as long as they are kept dry and clean. If cleaning is necessary, use mild
detergents or solvents. If lubrication is desired for components such as axle bearings, jackshaft bearings, and jamb seals, do
not use oil-based lubricants or any other lubricants that attract contaminants such as dust.
Dampers and their actuator(s) must be maintained, cycled, and tested in accordance with:
• The latest editions of NFPA 80, 90A, 92A, UL864, and local codes.
• Actuator manufacturer recommendations.
Symptom Possible Cause Corrective Action
Frame is ‘racked’ or not round causing Adjust frame such that it is square
blades to bind on jamb seals or frame and plumb or round where applicable
Actuator linkage loose Close damper, disconnect power, adjust
and tighten linkage
Defective motor Replace
Screws in damper linkage Locate screws and remove
Contaminants on damper Clean with a non-oil-based solvent
(see Damper Maintenance)
No power supplied to the actuator
464604• HSD Rev. 4, October 2012 Copyright 2012 © Greenheck Fan Corporation
As a result of our commitment to continuous improvement, Greenheck reserves the right to change
specications without notice.
Specic Greenheck product warranties are located on greenheck.com within the product area tabs and in
the Library under Warranties.
®
Phone: [phone] • Fax: [phone] • E-mail: [email protected] • Website: www.greenheck.com
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