24110 South Peculiar Drive
Peculiar, Missouri 64078
tel: 1-800-821-3944
fax: 1-800-758-5950
www.siouxchief.com
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#IS-696 FIRE-RATED WASHING MACHINE OX BOX INSTRUCTION SHEET – 1/08 © 2008 SIOUX CHIEF MANUFACTURING
Design Specication
1 Wall Construction
Wood or metal stud construction, max 100 in.² a
of penetrations per 100 ft² of wall
Single-layer ⅝" gypsum construction with 1-hour re ratingb
Double-layer ⅝" gypsum construction with 2-hour re ratingc
Boxes cannot be installed back to backd
2 Pipe/Box Support
Each outlet box must be installed in a separate stud bay and a
attached to the stud, as shown below in “over-stud” or “separate
stud bay” installation examples. Fire rating does not apply to
installations of two or more boxes in the same stud bay.
Supplied support bar to be installed through at least one box’s slotted openingb
Supply lines to be installed using ordinary methodsc
Drain line to be supported using ordinary methodsd
3 Pipe Material
2" or larger metallic, PVC, or ABS DWV pipea
Metallic or plastic water supply pipeb
4 Firestop Device
Sioux Chief re-rated Ox Box frame and frame extension are a
constructed using re-rated resin. Boxes have 4" × 4" intumescent
adhesive pads factory installed on the back of boxes.
NOTE: Gaps up to ½" around box can be sealed with drywall plaster. Larger
gaps require restop sealant applied to opening spanning entire drywall depth.
1
2
3
4
Fire-rated ABS
Intumescent pads
Fire-Rated Ox Box
™
Outlet Box
“over stud” installation “separate stud bay” installation
The Fire-Rated Ox Box is certied by Intertek/Warnock
Hersey to the following Fire Rating Standards:
ASTM E-814
2 hours (F), 1½ hours (T)
for 2-hour design
1 hour (F), 31 mins (T)
for 1-hour design
ASTM E119
CAN/ULC S115
2 hours (F), 1½ hours (T)
for 2-hour design
1 hour (F), 31 mins (T)
for 1-hour design
UL 1479
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