Table of Contents
General Information ............................................. 2
Pre-Installation Guidelines ................................... 2
Electrical Guidelines ............................................. 2
Installation .......................................................3-11
• Preparation of Openings ............................... 3
• Clearances Required Between Damper
Sleeves & Wall/Floor Openings .................... 4
• Installing Multiple Damper Section
Assemblies ................................................4-5
• Multiple Section Damper Wiring .................... 5
• Maximum Assembly Tables ........................... 5
• Inserting Damper into Wall/Floor
Openings ....................................................... 6
• Securing the Damper/Sleeve
Assembly to Wall/Floor Openings .............7-8
• Duct to Sleeve Connection ....................... 9-10
• Actuator & Temperature Response
Device Connections ..................................... 11
Commissioning and Periodic Testing ................. 12
Maintenance ...................................................... 12
Troubleshooting ................................................. 12
These instructions apply to 1
1
⁄2 and 3 hour rated fire and combination fire smoke dampers mounted in: 1) masonry,
block, or stud walls and 2) concrete floors. Specific requirements in these instructions are mandatory. Dampers must
be installed in accordance with these instructions to meet the requirements of UL 555 and/or UL 555S.
Note: Combination fire smoke and fire dampers are manufactured and labeled for either vertical or horizontal
installation. The dampers must be installed in accordance with labeling.
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 100°F (38°C).
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.
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.
®
Multi-Blade Fire and Combination Fire Smoke Dampers 1
Document 481318
Multi-Blade Fire and Combination Fire
Smoke Damper
DFD-xxx, DFDAF-xxx, FSD-xxx, FSD-xxxV, IMO-xxx, SEDFD-
xxx, SEFSD-xxx, and SSFSD-xxx
1
1
⁄2 and 3 Hour Fire and Combination Fire Smoke Dampers
(with factory installed sleeve and actuator)
Installation, Operation and Maintenance Manual
Please read and save these instructions for future reference. Read carefully before attempting to assemble, install,
operate or maintain the product described. Protect yourself and others by observing all safety information. Failure
to comply with these instructions will result in voiding of the product warranty and may result in personal injury
and/or property damage.
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