Part Number 463543
INSTALLATION INSTRUCTION SUPPLEMENT
Refer to:
‘Installation Instructions for
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 (3.5mm). Sleeve inside dimensions must equal damper outside dimensions.
FSD Series
Field Supplied Sleeves on Fire
Smoke Dampers
“UL CLASSIFIED
(see complete marking on product)”
“UL CLASSIFIED to Canadian safety standards (see complete marking on product)”
Standards UL 555 & UL 555S Classifications Filed at UL under Listing #R13317
Sleeves shall extend a maximum of 16 in. (406mm) beyond the wall or floor on the actuator 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, the sleeve shall also extend a maximum of 16 in. (406mm) beyond the wall or floor. When there is no access door incorporated
0QUJPOBMCMBEFJOEJDBUPS BOEPSFMFDUSJDMJOL
$MFBSBODFGPSFYQBOTJPO JONJOJONBY
3FUBJOJOH"OHMFT TFF4FDUJPO
as part of the sleeve, the sleeve shall extend a maximum of 6 in. (152mm) beyond the wall or floor on the side of the
damper opposite the actuator.
2.ATTACHING FIRE DAMPERS TO 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. (152mm) on centers and a maximum of 2 in. (51mm) 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
•1/4 in. (6mm)bolts and nuts
•3/16 in. (4.7mm)steel pop rivets
"DDFTTEPPSSFRVJSFEPO KBDLTIBGUTJEFPGEBNQFS 3FGFSUPUIFMBUFTUFEJUJPO PG/'1""
%BNQFS 
4MFFWF
Fig. 1
"JSnPX
+BDLTIBGU
"DUVBUPS 
A"%JN
%JTUBODFGSPN
FOEPGTMFFWFUP
GBDFPGEBNQFS
$
JONBY 
-
5X
%FUBJM
JONBY 
Dampers may be mounted either vertically or horizontally. Blade axis must always be horizontal.
Minimum Sleeve Thickness for Fire Dampers
Type of Duct to | Duct | Duct Dimension | Sleeve Gauge |
Sleeve Connection |
| in. (mm) |
|
|
|
|
|
Rigid | Round | 24 in. (610mm) max. diameter | 16 (.060 in.) |
| Rectangular | 36 in. (914mm) max. width or | [1.5mm] |
|
| 24 in. (610mm) max. height |
|
|
|
|
|
Rigid | Round | over 24 in. (610mm) diameter | 14 (.075 in.) |
| Rectangular | over 36 in. (914mm) width or | [2mm] |
|
| over 24 in. (610mm) height |
|
|
|
|
|
Breakaway | Round or | 12 in. (305mm) wide and under | 26 (.018 in.) [.46mm] |
(or no duct) | Rectangular | 13 in. - 30 in. (330mm - 762mm) wide | 24 (.024 in.) [.6mm] |
|
| 31 in. - 54 in. (787mm - 1371mm) wide | 22 (.030 in.) [.76mm] |
|
| 55 in. - 84 in. (1397mm - 2134mm) wide | 20 (.036 in.) [.9mm] |
|
| 85 in. (2159mm) wide and over | 18 (.048 in.) [1.2mm] |
|
|
|
|
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.
Copyright © 2008 Greenheck Fan Corporation
463543 Field Installed Sleeve Supplement Rev. 2 March 2008
