Installation
The Model S170 must be installed in
accordance with the following instruc-
tions:
NOTES
The Model S170 must only be in-
stalled in fittings that meet the re-
quirements of the Design Criteria
section.
Refer to the Design Criteria section
for other important requirements re-
garding piping design and sealing of
the clearance space around the
Sprinkler Casing.
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 horizontally, a small
air bubble should be present. The di-
ameter of the air bubble is approxi-
mately 1/16 inch (1,6 mm) for the
135°F/57°C rating to 1/8 inch (3,2
mm) for the 360°F/182°C rating.
A leak tight 1 inch NPT sprinkler
joint should be obtained with a
torque of 20 to 30 ft.lbs. (26,8 to
40,2 Nm). Higher levels of
torque may distort the sprinkler
inlet with consequent leakage
or impairment of the sprinkler.
Do not attempt to compensate
for insufficient adjustment in an
Escutcheon Plate by under- or
over-tightening the Sprinkler.
Readjust the position of the
sprinkler fitting to suit.
Step 1.
The sprinkler must be
installed only in the pendent po-
sition and with the deflector par-
allel to the mounting surface.
Step 2.
With pipe thread
sealant applied to the pipe
threads, hand tighten the sprin-
kler into the sprinkler fitting.
Step 3.
Wrench tighten the
sprinkler by wrenching on the
Casing with a pipe wrench
whenever the casing is readily
accessible. Otherwise, use a W-
Type 7 Sprinkler Wrench (Ref.
Figure 3). The wrench recess of
the W-Type 7 is to be applied to
the sprinkler wrench flats (Ref.
Figure 1).
Figure 1
Model S170 Dry Pendent Sprinkler Installation Dimensions
(76.2 mm)
3" DIA.
(57.2 mm)
2-1/4" DIA.
FACE OF
CEILING
(34.9 ± 3.2 mm)
1-3/8" ± 1/8"
SPRINKLER FITTING
FITTING
FACE OF
SPRINKLER
CRITERIA SECTION)
(REFER TO DESIGN
LENGTH
ORDER
"A"
(55.6 ± 3.2 mm)
2-3/16" ± 1/8"
(73.0 mm)
2-7/8" DIA.
(44.5 mm)
1-3/4" DIA.
LENGTH
ORDER
"A"
1" NPT
*
(108.0 ± 3.2 mm)
4-1/8" ± 1/8"
FLAT
WRENCH
(88.9 mm)
3-1/2" DIA.
(63.5 mm)
2-1/2" DIA.
LENGTH
ORDER
"A"
*
(DEEP CEILING)
(STANDARD)
(RECESSED)
*
*
*
* See Table A for available Order Lengths in 1/4 inch increments.
** Pipe thread connections per ISO 7/1 can be provided on special request.
Figure 2
Model S170
Dry Pendent Sprinkler Assembly
WATER
TUBE
VENT HOLE
GUIDE
TUBE
FRAME
INSERT
YOKE
BULB
INLET
O-RING
PLUG &
1" NPT
SPRING
DEFLECTOR
BULB
CASING
5 mm
SEAT
OBSOLETE
