Greenheck FD-300 User Manual

Model FD-300

Static Rated FIRE DAMPERS

Ultra Thin Construction

3 Hour Fire Resistance Rating

APPLICATION

Model FD-300 is approved for use in walls and partitions
with fire resistance ratings of 3 hours or more. This model
carries a 3 hour UL fire damper label. UL 555 classifies
static rated fire dampers for use in HVAC systems that are
automatically shut down in the event of fire .

RATINGS

UL555 Fire Resistance Rating
Fire Rating: 3 hours

CONSTRUCTION

Galvanized steel (in gauges required by UL listing R-13317)

INSTALLATION

All fire damper installations require the use of sleeves,
angles and methods described in Greenheck Fire Damper
Installation Instructions #452763, included with every
damper shipment. Sleeves can be field fabricated or factory
furnished as a complete damper/sleeve assembly. See
Factory Sleeve Option below for details.

STANDARD FEATURES

• Fusible links - 165°F (74°C) standard, 212°F (100°C) and
286°F (141°C) available

• Vertical mount

OPTIONAL FEATURES

• Security bars

• One piece retaining angles (POC)

• Transitions (B & B2)

Model FD-300 meets the requirements for fire dampers
established by:

National Fire Protection Association

(NFPA Standards 80, 90A & 101)

Underwriters Laboratories Standard 555 (Listing #R-13317)
IBC International Building Codes
New York City ( MEA listing #260-91-M)
California State Fire Marshall

(Listing #3225-981:102 for use in walls)

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

Standard 555 (Listing #R13317)

W*

H*

1 1/2 in.

TYPE A

VERTICAL MOUNT

ONLY

1 1/2 in.

W*

TYPE B

VERTICAL MOUNT

ONLY

O*

H*

These dimensions are furnished approximately 1/4 in. (6mm) undersize

FACTORY SLEEVE OPTION

*

FD-300 Fire Dampers are available in factory furnished sleeves. Sleeves are galvanized
steel and are available in 10 thru 20 ga. (1mm - 3.5mm) thicknesses and lengths up to
36 in. (914mm).

“K” dimension specifies location of damper within the sleeve. Minimum is 4 in.
(102mm), maximum is “L” less 4 in. (102mm), which allows for mounting angle
installation and duct connection at each end of sleeve. If “K” dimension is not
specified, it will be provided as one half of “L” dimension (damper centered in sleeve).

Note: If using access doors, the doors should be installed on the "K" side of the
damper.

Type B with sleeve

Type B corner prole

Installation instructions available at www. greenheck.com

Sleeve

Damper

H*

K

Damper

Location

CL Damper Frame

Overall Sleeve Length

L

W*

When sealed option is selected, B transitions

will need to be field sealed in the area where
duct to sleeve connection is made.

FD-300 Types A & B

SIZING DATA

Ultra thin FD-300 models are normally supplied in
single section sizes only.

Vertical Mount Only

Inches (mm) Type A Type B or B2

Minimum 4 x 4

(102 x 102)

Maximum 48 x 48

(1219 x 1219)

4 x 3

(102 x 76)

48 x 40

(1219 x 1016)

Overall Damper and Blade Stack Dimensions

H*

O*

H*

T ype A - Maximum Dimensions

48 in. (1219mm)
max.

48 in.(1219mm)
max.

Type B - Maximum Dimensions

40 in. (1016mm)
max.

48 in.(1219mm)
max.

1 1/2 in.
(38mm)

Type B2

Varies

1 1/2 in.
(38mm)

W*

TYPE A

H* O*

3 (76) 5 (127)

4 (102) 6 (152)

5 (127) 7 (178)

6 (152) 8 (203)

7 (178) 9 (229)

8 (203) 10 (254)

9 (229) 11 (279)

10 (254) 12 (305)

11 (279) 14 (356)

12 (305) 15 (381)

13 (330) 16 (406)

14 (356) 17 (432)

15 (381) 18 (457)

16 (406) 20 (508)

17 (432) 21 (533)

18 (457) 22 (559)

19 (483) 23 (584)

20 (508) 24 (610)

21 (533) 26 (660)

W*

TYPE B

O*

H*

W*

Type B2

H* O*

22 (559) 27 (686)

23 (584) 28 (711)

24 (610) 29 (737)

25 (635) 30 (762)

26 (660) 32 (813)

27 (686) 33 (838)

28 (711) 34 (864)

29 (737) 35 (889)

30 (762) 36 (914)

31 (787) 38 (965)

32 (813) 39 (991)

33 (838) 40 (1016)

34 (864) 41 (1041)

35 (889) 42 (1067)

36 (914) 44 (1118)

37 (940) 45 (1143)

38 (965) 46 (1168)

39 (991) 47 (1194)

40 (1016) 48 (1219)

K dim.

Sleeve Length

Varies

* Dimension are in inches (mm). These dimensions are
furnished approximately 1/4 in. (6mm) undersize.

Copyright © 2009 Greenheck Fan Corporation

FD-300 Rev. 6 Sept 2009