cracked or there is a loss of liquid from the bulb. With the
sprinkler held horizontally, 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 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 conse-
quent 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.
1. The sprinkler must be installed only in the horizontal po-
sition, and the word “TOP” on the deflector must face up-
wards toward the ceiling.
2. With pipe thread sealant applied to the pipe threads,
hand tighten the sprinkler into the sprinkler fitting.
3. Wrench tighten the sprinkler by wrenching on the Cas-
ing with a pipe wrench whenever the casing is readily ac-
cessible. 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).
4. After the wall construction is completed or the finish coat
has been applied to the wall (as applicable), slide on the
outer piece of the Escutcheon until it comes in contact with
the wall (Ref. Figure 4).
STAR SPRINKLER
1-6.4.20
Page 3
TABLE B
UL AND ULC LISTING CRITERIA FOR INSTALLATION OF
LUMINOUS S178 (SIN S3245) QR-EC DRY HORIZONTAL SIDEWALL SPRINKLERS
Application
Coverage Area
W x L
FT. x FT. (m x m)
Minimum
Flow
(b)
GPM (LPM)
Minimum
Pressure
(b)
PSI (BAR)
Sprinkler
Temperature Rating
°F
16 x 16 (4,9 x 4,9)
135, 155
26 (98)
21.6 (1,49)
32 (121)
32.7 (2,25)
QR-EC
(a)
135, 155
16 x 18 (4,9 x 5,5)
16 x 20 (4,9 x 6,1)
26.8 (1,85)
29 (110)
135, 155
NOTES:
(a) For use in QR-EC Light Hazard Occupancy automatic sprinkler system applications per NFPA 13.
(b) Requirement is based on minimum flow in GPM from each sprinkler. The indicated residual pressures are based on the nominal K-factor.
(c) The S178 Sprinklers are only permitted to be used with unobstructed, smooth ceiling construction as defined by NFPA 13.
(d) Follow the requirements of NFPA 13 for spacing of the S178 Sprinklers with respect to ceiling mounted obstructions.
(e) The minimum allowable spacing between the S178 Sprinklers, to prevent cold soldering, is 14 feet (4,3 m).
(f) The maximum permitted ceiling slope for S178 Sprinklers is a 2 inch (50,8 mm) rise over a 12 inch (304,8 mm) horizontal run
per NFPA 13.
(g) The deflector-to-ceiling distance for the S178 Sprinklers is 4 to 12 inches (100 to 300 mm). To meet this requirement, the centerline of
the sprinkler waterway must be 4-7/16 to 12-7/16 inches below the ceiling.
18 x 16 (5,5 x 4,9)
29 (110)
26.8 (1,85)
135, 155
FIGURE 2
LUMINOUS S178 QR-EC DRY HORIZONTAL SIDEWALL SPRINKLER
ASSEMBLY
WATER
TUBE
GUIDE
TUBE
HOLE
INLET
INSERT
DEFLECTOR
3 mm
SCREW
COMPRESSION
O-RING
PLUG &
BULB
SEAT
YOKE
1" NPT
CASING
SPRING
VENT
FRAME
BULB
OBSOLETE
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