Greenheck Multi-Blade DFD Series Manuel utilisateur

Field Supplied Sleeves 1

Document 463543

Multi-Blade DFD and FSD Series

Field Supplied Sleeves

Optional blade indicator

and/or electric link.

LINE OF WALL

DO NOT INSTALL SCREWS

BETWEEN THESE LINES

AROUND ENTIRE DAMPER

Retaining Angles

(see Section 4)

Line of Wall

Airﬂow

Detail 1

DO NOT INSTALL SCREWS

BETWEEN THESE LINES

AROUND ENTIRE DAMPER

Access door required on

jackshaft side of damper.

Refer to the latest edition

of NFPA 90A. Jackshaft

Actuator

Damper

Sleeve

Sleeve Length (L)

6 in. max.

16 in. max.

‘A’ Dim.

(Distance from

end of sleeve to

face of damper)

458549

Refer to:

‘Installation Instructions for FSD-XXX, DFD-XXX, &

SSFSD-XXX, Series Fire & Combination Fire Smoke

Dampers’ (Part #481318)

‘Installation Instructions for FD, DFD, SSFD, SSDFD, &

KFD Series Curtain Fire Dampers’ (Part #481324)

for additional details

1. GAUGES AND LENGTHS OF FIRE DAMPER SLEEVES

All ﬁre smoke dampers must be installed in a steel sleeve of the required gauge and length. See Table 1 for required

minimum sleeve gauges. Maximum sleeve thickness is 10 gauge (3.5 mm). Sleeve inside dimensions must equal

damper outside dimensions.

Sleeves shall extend a maximum of 16 in. (406 mm) beyond the wall or ﬂoor on the actuator or manual quadrant side

of the damper (see Figure 1). When an access door is incorporated as a part of the sleeve on the side opposite the

actuator or manual quadrant, the sleeve shall also extend a maximum of 16 in. (406 mm) beyond the wall or ﬂoor.

When there is no access door incorporated as part of the sleeve, the sleeve shall extend a maximum of 6 in. (152

mm) beyond the wall or ﬂoor on the side of the damper opposite the actuator or manual quadrant.

2. ATTACHING FIRE DAMPERS SLEEVES

All four sides of the damper frame must be attached to the sleeve with one row of attachments on each side of the

frame. Attachments must be spaced a maximum of 6 in. (152 mm) on centers and a maximum of 2 in. (51 mm) from

corners. A minimum of 4 attachments (2 on each side of the frame) per side (16 per damper) are required. One of

the methods of attachment shown below must be used.

• tack or spot welds

• #10 sheet metal screws

•

1⁄4in. (6 mm) bolts and nuts

•

3⁄16 in. (4.7 mm) steel pop rivets

Dampers may be mounted either

vertically or horizontally. Blade axis

must always be horizontal.

Figure 1

As a result of our commitment to continuous improvement, Greenheck reserves the right to change speciﬁcations

without notice.

Product warranties can be found online at Greenheck.com, either on the speciﬁc product page or in the

literature section of the website at Greenheck.com/Resources/Library/Literature.

Phone: 715.359.6171 • Fax: 715.355.2399 • Parts: 800.355.5354 • E-mail: [email protected] • Website: www.greenheck.com

Our Commitment

Minimum Sleeve Thickness for Fire Dampers

Type of Duct to

Sleeve Connection

Duct Duct Dimension

in. (mm)

Sleeve Gauge

Rigid Round

Rectangular

24 in. (610mm) max. diameter

36 in. (914 mm) max. width or

24 in. (610mm) max. height

16 (.060 in.)

[1.5 mm]

Rigid Round

Rectangular

over 24 in. (610mm) diameter

over 36 in. (914 mm) width or

over 24 in. (610mm) height

14 (.075 in.)

[2 mm]

Breakaway

(or no duct)

Round or

Rectangular

12 in. (305 mm) wide and under

13 in. - 30 in. (330 mm - 762 mm) wide

31 in. - 54 in. (787 mm - 1371 mm) wide

55 in. - 84 in. (1397 mm - 2134 mm) wide

85 in. (2159 mm) wide and over

26 (.018 in.) [.46 mm]

24 (.024 in.) [.6 mm]

22 (.030 in.) [.76 mm]

20 (.036 in.) [.9 mm]

18 (.048 in.) [1.2 mm]

Important Note: Sleeve thickness must not be less than the gauge of the connecting duct.

UL Standard 555 requires all ducts to terminate at the ﬁre damper sleeves or the damper frames.

Table 1: Minimum sleeve thickness for ﬁre dampers.

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