Greenheck Fan DFDR-XXX, SSDFDR-XXX, SSFDR-XXX, FDR-XXX User Manual

Part Number 462721

DFDR-XXX, SSDFDR-XXX,

FDR-XXX, and SSFDR-XXX MODELS

1 1⁄2 Hour Round Fire Dampers

Vertical and Horizontal Mount

Installation, Operation and Maintenance Instructions

DFDR-XXX, SSDFDR-XXX, FDR-XXX, and SSFDR-XXX
Model Dampers are intended for installation in accordance
with fire damper requirements established by:

National Fire Protection Association

NFPA Standards 80, 90A, & 101

BOCA National Building Codes
ICBO Uniform Building Codes
IBC International Building Codes
SBCCI Standard Building Codes
New York City (MEA listing #260-91-M)

“UL CLASSIFIED (see complete marking on product)”
“UL CLASSIFIED to Canadian safety standards (see
complete marking on product)”

UL Standard 555 (Classification #R13317)

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 (37°C).

INSTALLATION SUPPLEMENTS

Refer to the appropriate Greenheck installation
supplements for special rquirements:

• Steel Deck Supplement

Due to continuing research, Greenheck reserves the right to change specifications without notice.

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.

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.

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.

2 in.

TW

AIRFLOW

SLEEVE LENGTH

2 in.

6 in. max.6 in. max.

(OPTIONAL)

RETAINER PLATE

DUCT CONNECTION

AREA

CLEARANCE FOR
EXPANSION

RETAINER PLATE

BLADE LATCH

ACCESS DOOR TO BE ON
SAME SIDE AS BLADE LATCH

DUCT CONNECTION
AREA

DO NOT PLACE RETAINER
PLATE IN THIS GROOVE

Table of Contents

Pre-Installation Guidelines ...................................................................................2

Installation .........................................................................................................2-4

Maintenance .........................................................................................................4

Troubleshooting ....................................................................................................4

Pre-Installation Guidelines

The basic intent of a proper installation is to secure the fire damper in the opening in such a manner as to prevent
distortion and disruption of damper operation. This is accomplished by allowing the fire damper in rated separation
openings to expand and for the connecting duct to separate in the event of the collapse of the hanging system. The
following items will aid in completing the damper installation in a timely and effective manner.

1) Check the schedules for proper damper locations within the building. Visually inspect the damper for damage and
verify that the fusible link is in place or has not separated. Dampers will be supplied with a temperature responsive
fusible link device. If fusible link is not present or has separated, replace link. Never install a fire damper without the
proper UL approved fusible link in place.

2) Lift or handle damper using the frame. Do not lift damper using blades.

3) Do not install screws into the main body area of the damper frame as screws may interfere with and prevent damper
blade from opening and/or closing.

4) Damper must be installed into duct or opening free of distortion or other misalignment. Damper must not be
squeezed or stretched into duct or opening. Out of round, racked, twisted or misaligned installations can cause
torque requirements to exceed damper design.

5) Damper must be kept clean and protected from dirt, dust and other foreign materials prior to and after installation.
Examples of such foreign materials include but are not limited to: 1) Mortar dust 2) Drywall dust 3) Firesafing
materials 4) Wall texture and 5) Paint overspray.

6) Damper should be sufficiently covered to prevent overspray if wall texturing or spray painting will be performed
within 5 feet of the damper. Excessive dirt or foreign material deposits on damper can cause torque requirements to
exceed damper design.

7) Caulking is not allowed between the damper sleeve and the wall or floor opening (annular space). However, caulking
may be applied to the retaining plates and a field-applied sealant may be required for the damper sleeve and
transitions to meet certain duct leakage standards.

8) ACCESS: Suitable access (such that fusible links can be maintained) must be provided for damper inspection
and servicing. Where it is not possible to achieve sufficient size access, it will be necessary to install a removable
section of duct. (Refer to NFPA 90A).

9) The Code Authority Having Jurisdiction (AHJ) must evaluate and provide approval of final installation where
variations to these instructions are necessary.

Installation - Failure to follow these instructions will void all warranties.

These instructions apply to 11/2 hour rated fire dampers mounted (blades must be horizontal) in: 1) masonry, block or stud
walls and 2) concrete floors or ceilings. Specific requirements in these instructions are mandatory. Dampers must be installed
in accordance with these instructions to meet the requirements of UL 555. The installation of the damper and all duct
connections to the damper sleeve shall conform to the latest editions of NFPA 90A, Standard for the Installation of Air
Conditioning and Ventilating Systems, and the SMACNA Fire, Smoke and Radiation Damper Installation Guide, and UL
Classifications R13317.

1. CLEARANCES REQUIRED BETWEEN FIRE

DAMPER SLEEVES AND WALL/FLOOR
OPENINGS

Fire damper assemblies expand during periods of

intense heat. Therefore, it is essential that openings in
walls or floors be larger than the fire damper assembly
to allow for this expansion. The wall/floor opening
must be a minimum of
outside diameter of the damper. Refer to Section 4 for
additional installation considerations.

2

7

/8 in. (22mm) larger than the

Fig. 1