APRIL 2019
GFS-350
PAGE 3 of 4
CARE AND MAINTENANCE
INSTALLATION
Step 1.
Install pendent sprinklers in the pendent
position, with the centerline of the sprinkler
perpendicular to the mounting surface.
Step 2.
Remove the Protective Cap.
Step 3.
With pipe-thread sealant applied to the pipe
threads, and using the Concealed Sprinkler
Wrench P/N 325391 (FIGURE 2), install and
tighten the Sprinkler/Concealed Cup Assembly
into the fitting.
Step 4.
Replace the Protective Cap by pushing it
upwards until it bottoms out against the Sup-
port Cup. The Protective Cap helps prevent
damage to the Deflector and Drop Pins during
ceiling installation and/or during application of
the finish coating of the ceiling.
NOTICE:
The system is considered Out of Service when
the protective caps are in place.
Step 5.
After the ceiling has been completed with the
2-1/2” (63.2mm) diameter hole, remove and
discard the Protective Cap and verify that the
Deflector moves up and down freely. If the
sprinkler has been damaged or the deflector
does not move up and down freely, replace
the entire sprinkler assembly. Do not attempt
to modify or repair.
Step 6.
Push on the Cover Plate Assembly until its
flange contacts the ceiling. Never attempt to
screw on the Cover Plate Assembly such that
it lifts a ceiling panel out of its normal posi-
tion. If the Cover Plate Assembly cannot be
engaged with the Mounting Cup or the Cover
Plate Assembly cannot be engaged sufficient
-
ly to contact the ceiling, the Sprinkler Fitting
must be repositioned.
Always obtain permission from the proper authorities to
shut down the affected fire protection system and notify all
personnel who may be affected by this action before closing
a fire protection system main control valve for maintenance
work on the system that it controls. Sprinklers should only
be cleaned by means of gently dusting with a feather dust-
er; otherwise, non-operation in the event of a fire or inadver
-
tent operation may result.
When properly installed, there is a nominal 1/8” (3mm) air
gap between the Cover Plate and the ceiling (Figure 1). This
air gap is necessary for proper operation of the sprinkler by
allowing heat flow from a fire to pass below and above the
Cover Plate to help assure appropriate release of the Cover
Plate in a fire situation. This annular “gap” must be main
-
tained and should never be sealed or caulked.
Factory painted Cover Plates must not be repainted.
In accordance with NFPA 25, Sprinklers which are found to
be leaking or exhibiting visible signs of corrosion must be
replaced.
Automatic sprinklers must never be painted, plated, coated,
or otherwise altered after leaving the factory.
Care must be exercised to avoid damage to the sprinklers–
before, during, and after installation. Sprinklers damaged
by dropping, striking, wrench slippage, or similar incidents,
must be replaced.
The owner is responsible for the inspection, testing, and
maintenance of their fire protection system and devices in
compliance with this document, as well as with the appli-
cable standards of the National Fire Protection Association
(e.g. NFPA 25), in addition to the standards of any other
authorities having jurisdiction.
Refer to Globe’s Residential Installation Guide for further
Care and Maintenance information.
TABLE B: ESCUTCHEONS
DOMED COVER PLATE
SIZE
WHITE 135°F (57°C)
P/N
CHROME 135°F (57°C)
P/N
BLACK 135°F (57°C)
P/N
CUSTOM 135°F (57°C)
P/N
3-5/16” DIA
.
326048
326046
326048-B
326049
FIGURE 2: CONCEALED WRENCH
P/N 325391
NOTICE
Do not install any bulb-type sprinkler if the bulb is cracked or
there is loss of liquid from the bulb. Sprinklers should be tightened
enough to obtain a leak-tight joint when water pressure is applied
and/or hydrostatic test is performed. Sprinklers should not be
overtightened as this can result in distortion and subsequent leak-
age. It is recommended not to exceed 14 ft.-lb. (19.0 Nm) torque
for 1/2 inch NPT sprinkler threads.
