GREENHECK DFDAF-330 Multi Blade Fire Damper Owner’s Manual
- June 1, 2024
- GREENHECK
Table of Contents
DFDAF-330
Multi-blade Fire Damper
Application
Model DFDAF-330 is a multi-blade fire damper with airfoil style blades for use in walls, floors, and partitions with fire resistance rating of 3 hours or more. Model DFDAF-330 may be installed vertically (with blades running horizontal) or horizontally and is rated for airflow in either directions.
This model has a manual quadrant which allows the DFDAF-330 to function as both a fire damper and a manual balancing damper.
Ratings
UL 555 Fire Resistance Rating
Fire Rating:
| 3 hours
---|---
Dynamic Closure Rating:
| Actual ratings are size dependent
Velocity:
| Up to 4000 fpm (20.3 m/s) on sizes up to 32 in. x 36 in. (813 mm x 914 mm);
2000 fpm (10.2 m/s) on sizes greater than 32 in. x 36 in. (813mm x 914 mm)
Pressure:
| Up to 8 in. wg (2 kPa)
Construction
Construction
| Standard|
Optional
---|---|---
Frame Material|
Galvanized steel
|
–
Frame Material Thickness| 16 ga. (1.5mm)| –
Frame Type|
5 in. x 1 in.
(127mm x 25mm)
hat channel
|
–
Blade Action|
Opposed
|
–
Blade Material|
Galvanized steel
|
–
Blade Material Thickness|
14 ga. (2mm) equivalent
|
–
Blade Type|
Double skin airfoil
|
–
Linkage|
Plated steel out of airstream, concealed in jamb
|
–
Axle Bearings|
316SS
|
–
Axle Material|
Plated steel
|
–
Jamb Seals|
Stainless Steel
|
–
Closure Device|
Fusible link
|
–
Closure Temperature|
165°F (74°C)
|
212°F (100°C),
286°F (141°C),
350°F (177°C)
Actuator|
Manual quadrant
|
–
W & H dimensions furnished approximately ¼ in. (6 mm) undersize.
(Add sleeve thickness for overall sleeved damper dimension)
See complete marking on product.
UL 555 Classification R13317
Model DFDAF-330 meets the requirements for fire dampers established by:
National Fire Protection Association
NFPA Standards 80, 90A & 101
IBC International Building Codes
CSFM California State Fire Marshal
Fire Damper Listing (#3225-0981:0103)
W x H
| Minimum Size| Maximum Size
---|---|---
Single Section|
Multi-Section
2000 fpm
(10.2 m/s)
| 4000 fpm
(20.3 m/s)
Inches
| 8 x 6| 32 x 36 (V) or
30 x 48 (H or V)| 128 x 96 (V)
or
144 x 96 (H)|
30 x 48
mm|
203 x 152
| 813 x 914 or
762 x 1219| 3048 x 2438
or
3658 x 2438|
762 x 1219
Options & Pressure Drop Data
-
Extra Fusible Links
-
Factory mounted accessories
– Quick connect breakaway connections
– Access doors -
Flanges
-
OCI (Open Closed Indication switches): Units will be supplied with one OCI per row of damper sections
-
Sealed transition and sleeves
-
Sleeves
-
Smoke Detector
-
Test Switch (GTS-4)
-
Transitions (C, O, R)
Document Links
SPECIFICATIONS
SELECTION
GUIDE
AMCA Pressure Drop
AMCA Figure 5.2
Figure 5.2
12 in. x 12 in. (305mm x 305mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.03
1000| 0.12
1500
| 0.26
2000| 0.46
2500
| 0.72
3000| 1.04
3500
| 1.41
4000| 1.84
24 in. x 24 in. (610mm x 610mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.01
1000| 0.06
1500
| 0.12
2000| 0.22
2500
| 0.34
3000| 0.49
3500
| 0.67
4000| 0.87
36in. x 36 in. (914mm x 914mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.01
1000| 0.06
1500
| 0.12
2000| 0.22
2500
| 0.34
3000| 0.49
3500
| 0.67
4000| 0.88
12in. X 48 in. (305mm x 1219mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.01
1000| 0.05
1500
| 0.12
2000| 0.21
2500
| 0.33
3000| 0.48
3500
| 0.65
4000| 0.85
48 in. x 12 in. (1219mm x 305mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.02
1000| 0.08
1500
| 0.18
2000| 0.33
2500
| 0.51
3000| 0.74
3500
| 1.00
4000| 1.31
AMCA Figure 5.3
Figure 5.3
12 in. x 12 in. (305mm x 305mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.01
1000| 0.06
1500
| 0.13
2000| 0.23
2500
| 0.37
3000| 0.53
3500
| 0.73
4000| 0.95
24 in. x 24 in. (610mm x 610mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.01
1000| 0.02
1500
| 0.06
2000| 0.10
2500
| 0.16
3000| 0.23
3500
| 0.32
4000| 0.42
36in. x 36 in. (914mm x 914mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.01
1000| 0.02
1500
| 0.05
2000| 0.09
2500
| 0.14
3000| 0.21
3500
| 0.29
4000| 0.38
12in. X 48 in. (305mm x 1219mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.01
1000| 0.02
1500
| 0.06
2000| 0.10
2500
| 0.16
3000| 0.24
3500
| 0.33
4000| 0.43
48 in. x 12 in. (1219mm x 305mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.01
1000| 0.04
1500
| 0.10
2000| 0.18
2500
| 0.29
3000| 0.42
3500
| 0.57
4000| 0.74
AMCA Figure 5.5
12 in. x 12 in. (305mm x 305mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.04
1000| 0.18
1500
| 0.42
2000| 0.75
2500
| 1.17
3000| 1.68
3500
| 2.29
4000| 2.99
24 in. x 24 in. (610mm x 610mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.03
1000| 0.13
1500
| 0.29
2000| 0.52
2500
| 0.81
3000| 1.17
3500
| 1.60
4000| 2.14
36in. x 36 in. (914mm x 914mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.03
1000| 0.12
1500
| 0.27
2000| 0.48
2500
| 0.75
3000| 1.08
3500
| 1.48
4000| 1.93
12in. X 48 in. (305mm x 1219mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.03
1000| 0.12
1500
| 0.27
2000| 0.49
2500
| 0.77
3000| 1.11
3500
| 1.51
4000| 1.97
48 in. x 12 in. (1219mm x 305mm)
Velocity
(fpm)| Pressure Drop
(in. wg)
---|---
500
| 0.03
1000| 0.14
1500
| 0.32
2000| 0.57
2500
| 0.89
3000| 1.28
3500
| 1.75
4000| 2.29
Greenheck Fan
Corporation certifies that the model DFDAF-330 shown herein is licensed to
bear the AMCA Seal. The ratings shown are based on tests and procedures
performed in accordance with AMCA Publication 511 and comply with the
requirements of the AMCA Certified Ratings Programs. The AMCA Certified
Ratings Seal applies to air performance ratings only.
Sleeve and Sideplate Dimensions
The drawings below and corresponding table show the position of the DFDAF-330 damper when mounted in a factory sleeve (“A” dimension). The standard mounting locations provide enough space for the mounting of manual quadrant(s) and allow space for installation of retaining angles and duct connections. The following options may affect the range of available mounting locations: transitions, security bars, grille tabs.
The standard location of a damper mounted in a factory sleeve (“A” dimension) is shown below. The damper can be positioned at other locations within a range of 7 3/16 in. (183mm) to 16 in. (406mm) for the “A” dimension.
Sleeve
- Varies
- Sleeve Length
Sideplate
- Sideplate Length**
in. (mm)
| With Sleeve| Sideplate Damper Location “A”
---|---|---
Minimum Damper Location “A”|
Maximum Damper Location “A”
Dampers with no OCI|
7 3/16 in. (183)
| 16 (406)|
6 3/16 (157)
Height < 12 in. (305) OCI|
12 (305)
| 16 (406)|
12 (305)
Height ≥ 12 in. (305) OCI|
7 3/16 in. (183)
| 16 (406)|
12 (305)
NOTE: Entire damper frame is not required to be installed within the wall. The damper blades, when closed should be contained within the wall.
Transitioned Damper Dimensions
When a fire damper is being used in conjunction with round or oval ductwork, the DFDAF-330 can be supplied in a factory sleeve with round or oval transitions on both ends of the sleeve. Dampers should be ordered to the duct dimensions. Drawings below show overall damper size.
TYPE R
- D* + 2 in. (51mm)+Ts
- 2 1/8 in. (54mm)
- 16 in. (406mm) Minimum
TYPE O
- H* + 2 in. (51mm)+Ts
- W* + 2 in. (51mm)+Ts
- 2 1/8 in. (54mm)
- 16 in. (406mm) Minimum
TYPE C
- H* + 2 in. (51mm)+Ts
- W* + 2 in. (51mm)+Ts
- 2 1/8 in. (54mm)
- 16 in. (406mm) Minimum
*These dimensions are furnished approximately ¼ in. (6mm) undersize, except round and oval dimensions which are approximately 1/8 in.(3mm) undersize.
Ts = (2)(Sleeve Thickness)
DFDAF-330 January 2024
Multiple Section Dampers
Dampers larger than maximum single section size are supplied as a factory assembly of two or more sections of equal size. The following figures show maximum damper section size and assembly configurations for multi-section dampers. Larger damper sizes may ship in multiple sections.
Two Section
4 sections wide
2 sections high
NOTE: Entire damper frame is not required to be installed within the wall. The damper blades, when closed should be contained within the wall.
P.O. Box 410 • Schofield, WI 54476-0410 • 715.359.6171 • greenheck.com
Copyright ® 2024 Greenheck Fan Corporation
DFDAF-330, R14, January 2024
Greenheck Fan Corporation reserves the right to make
product changes without notice
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