Greenheck Concrete Floor User Manual

®

Refer to:
‘Installation Instructions for FD, DFD, SSFD, SSDFD, & KFD
Series Curtain Fire Dampers’ (Part #452763)
or
‘Installation Instructions for FD and DFD 150X Series Curtain
Fire Dampers’ (Part #453946)
or
‘Installation, Operation and Maintenance Instructions for
FSD-XXX, SSFSD-XXX, DFD-2XX, & CFSD-XXX Series Fire
& Combination Fire Smoke Dampers’ (Part #461336) for
additional details.

Application

Horizontal installation of FD, DFD, DFD-2XX, FSD,

SSFSD, and CFSD models in concrete floors utilizing a
steel deck. The hole opening made through the concrete
floor may not allow the bottom angle to be placed against
the steel deck on an even plane. This installation details
how to properly install the required retaining angles next
to the steel deck.

For single side retaining angle installations refer to

Greenheck document number 474015: Single Side
Retaining Angle Installation Instructions Supplement.

Notes for Two-Side Retaining Angle
Installations

1. Retaining angles are required on top and bottom sides of

damper as detailed in the Installation Instructions shown
above. Legs on angles may be reversed such that one leg
is inserted into the floor opening provided the required
clearance is maintained between angle leg fasteners and
the floor opening.

2. Installation of the bottom retaining angle against the
uneven steel deck shall be done such that the angles
on each side of the sleeve are as close to the barrier as
possible. In other words, the angles on each side of the
sleeve may be in different planes relative to each other
(see Figure 1 and 2).

3. When viewed from end of sleeve, the angles must overlap
each other in the corners such that no sight-through is
possible (see Figure 2).

Document Number 463562

Installation Instruction Supplement for

FD, DFD, & DFD-2XX Series

Fire Dampers and

FSD, SSFSD, & CFSD Series

Combination Fire Smoke Dampers

Installed in Concrete Floor with Steel Deck

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

Standard 555 (Listing #R13317)
Standard 555S (Listing #R13317)

Top angle

Side view
of sleeve

End view
of sleeve

Figure 2: Retaining angle installation.

Bottom angles
may be in
different planes

Angles must
overlap in
corners

Steel Deck

Concrete Floor

Clearance for expansion
(1⁄4 in. min, 11⁄2 in. max.)

Jackshaft

electric link.

and/o
Optional blade
indicator

r

Access door required on
jackshaft side of damper.
Refer to the latest edition
of NFPA 90A.

Figure 1: Damper installed in concrete floor with steel deck.

Airflow

Actuator

6 in.

max.

458549

LINE OF WALL

DO NOT INSTALL SCREWS

BETWEEN THESE LINES

AROUND ENTIRE DAMPER

‘A’ Dim.

(Distance from
end of sleeve to
face of damper)

Damper

Sleeve

L

C

16 in.
max.

Copyright© 2012 Greenheck Fan Corporation

463562 Concrete Floor with Steel Deck Supplement

Sleeve

Length (L)

Retaining angles:
Place as close to
barrier as possible.
Angles on each side
of sleeve may be in
different planes.

Steel
Joists

Rev 4 August 2012