temperature of 40°F/4°C, the follow-
ing are the minimum recommended
lengths between the face of the
sprinkler fitting and the outside sur-
face of the protected area (i.e.,
length exposed to minimum ambient
of 40°F/4°C):
•
12 inches (300 mm) when the tem-
perature within the protected area is
-20°F/-29°C
•
18 inches (450 mm) when the tem-
perature within the protected area is
-40°F/-40°C
•
24 inches (600 mm) when the tem-
perature within the protected area is
-60°F/-51°C
For protected area temperatures be-
tween those given above, the mini-
mum recommended length from the
face of the fitting to the outside of
the protected area may be deter-
mined by interpolating between the
indicated values.
NOTE
When Dry Sprinklers penetrate a
wall into an area subject to freezing,
the clearance space around the
Sprinkler Casing must be completely
sealed in order to prevent the leak-
age of moist air into the freezing
area which might result in the forma-
tion of condensate around the
Frame, Deflector, Bulb Seat, or Bulb.
Failure to prevent the formation of
condensate could result in the build-
up of ice around the releasing com-
ponents and, consequently, either
an inadvertent operation of the sprin-
kler or impaired operation due to re-
duced thermal sensitivity.
Installation
The Model S176 must be installed in
accordance with the following instruc-
tions:
NOTES
The Model S176 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 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 in-
sufficient adjustment in an Escutch-
eon Plate by under- or over-tighten-
ing the Sprinkler. Readjust the
position of the sprinkler fitting to suit.
Step 1
. The sprinkler must be in-
stalled only in the horizontal posi-
tion, and the word “TOP” on the de-
flector must face upwards toward the
ceiling.
Step 2.
With pipe thread sealant ap-
plied to the pipe threads, hand
Figure 2
Model S176 Dry Horizontal Sidewall Sprinkler Assembly
WATER
TUBE
GUIDE
TUBE
HOLE
INLET
INSERT
DEFLECTOR
5 mm
SCREW
COMPRESSION
O-RING
PLUG &
BULB
SEAT
YOKE
1" NPT
CASING
SPRING
VENT
FRAME
BULB
Figure 3
W-Type 7 Sprinkler
Wrench
RECESS
WRENCH
ENSURE ENGAGEMENT WITH
PUSH WRENCH IN TO
SPRINKLER WRENCHING AREA
Figure 4
Escutcheon Installation
OBSOLETE
