INSIDE
INSIDE
Figure A - Interior Fire Separation
When acceptable to the Authority Having Jurisdiction the Model WS Specific Application
Window Sprinklers may be used in either a sprinklered or unsprinklered building to protect
nonoperable window openings that are part of a fire separation provided in an interior fire
separation, the window sprinklers are installed on both sides of the window in the fire
separation.
Figure B - Exterior Separation
EXPOSURE
SIDE
OUTSIDE
INSIDE
When acceptable to the Authority Having Jurisdiction the Model WS Specific Application
Window Sprinklers may be used in either a sprinklered or unsprinklered building to protect
nonoperable window openings that are part of a fire separation provided in jurisdictions
where exterior spatial separation is defined as protecting an adjacent building from a fire in
your building, window sprinklers are installed on the interior side of the building
Installation
The Model WS Specific Application
Window Sprinklers must be installed
in accordance with the following
instructions.
NOTES
Do not install any bulb type sprinkler if
the bulb is cracked or there is a loss of
liquid from the bulb. With the sprinkler
held horizontal, a small air bubble
should be present. The diameter of
the air bubble is approximately 1/16
inch (1,6 mm).
A leak tight 1/2 inch NPT sprinkler
joint should be obtained with a torque
of 7 to 14 ft.lbs. (9,5 to 14,0 Nm). A
maximum of 21 ft.lbs. (28,5 Nm) of
torque is to be used to install 1/2 inch
NPT sprinklers. Higher levels of
torque may distort the sprinkler inlet
with consequent leakage or impair-
ment of the sprinkler.
Step 1. The pendent vertical sidewall
sprinkler must be installed only in the
pendent position with the centerline of
the sprinkler parallel to the glass
surface. The sprinkler must be
oreintated so that the direction of flow
indicated on the sprinkler deflector is
facing the window. The horizontal
sidewall sprinker must be installed
only in the horizontal position with the
centerline of the sprinkler perpendicu-
lar to the glass surface. The sprinkler
must be oreintated so that the word
"Top" indicated on the sprinkler
deflector is facing the top of window
frame.
Step 2. With pipe thread sealant
applied to the pipe threads, hand
tighten the sprinkler into the sprinkler
fitting.
Step 3. Wrench tighten the Sprinkler
using only the Combination Sprinkler
Wrench (Ref. Figure 4). The Combi-
nation Sprinkler Wrench is to be
applied to the Sprinkler Wrench flats
only.
Figure 4 - Combination Sprinkler Wrench (Part #1106)
Figure C - Exterior Separation
When acceptable to the Authority Having Jurisdiction the Model WS Specific Application
Window Sprinklers may be used in either a sprinklered or unsprinklered building to protect
nonoperable window openings that are part of a fire separation provided in jurisdictions
where exterior spatial separation is defined as protecting your building from a fire in an
adjacent building, open window sprinklers are installed on the exterior side of the building
EXPOSURE
SIDE
INSIDE
OUTSIDE
OBSOLETE
