Installation
Refer to Figures 1, 2, and 3
Do not install the G4-300 Concealer
®
in ceilings which have
positive pressure in the space above.
After a 2
5
/
8
” (67mm) diameter hole is cut in the ceiling, the
sprinkler is easily installed with the Model G4 Wrench. The
wrench has drive tangs which insert into the cup slots. When
installing a sprinkler the wrench is first positioned into the
sprinkler/cup assembly until the wrench tangs engage the
drive slots in the top of the cup (there are two sets of drive
slots in the cup). The sprinkler is then tightened into the pipe
fitting. When inserting or removing the wrench from the sprin-
kler/cup assembly care should be taken to prevent damage
to the sprinkler. DO NOT WRENCH ON ANY OTHER PART
OF THE SPRINKLER/CUP ASSEMBLY. Final adjustment of
the cover is made by hand turning the cover in the clockwise
direction until it is tight against the ceiling.
A protective cap is provided to protect the drop-down
sprinkler deflector from damage which could occur during
construction before the cover plate is installed. The cap is
factory installed inside the sprinkler cup. Remove cap to
install sprinkler, then re-install cap until the cover plate is in-
stalled.
Maintenance
The Model G4-300 Concealed Sprinklers should be in-
spected and the sprinkler system maintained in accordance
with NFPA 25. Do not clean sprinklers with soap and water,
ammonia or any other cleaning fluids. Remove any sprinkler
that has been painted (other than factory applied) or dam-
aged in any way. A stock of spare sprinklers should be main-
tained to allow quick replacement of damaged or operated
sprinklers. Prior to installation, sprinklers should be main-
tained in the original cartons and packaging to minimize the
potential for damage to sprinklers that would cause improper
operation or non-operation.
Note:
Paint or any other coat-
ings applied over the factory
finish will void all approvals
and warranties.
Ordering Information
Specify:
1. Sprinkler
Model
2. Nominal
Orifice
3. Cover Plate Finish
4. Inlet
Type
Model G4 Sprinkler
Wrench
Cover Plate Finishes
(1)
Standard Finishes
Chrome
White Paint
Special Application
Finishes
(2)
Bright Brass
Finished Bronze
Black Plating
Black Paint
Off White
Satin Chrome
(1)
Other finishes and colors are
available on special order. Con-
sult factory for details. Cover-
plate custom paint is semi-gloss,
unless specified otherwise.
(2)
For the perforated style cover-
plate, consult factory for avail-
ability on these and other custom
finishes.
2.
Standard Temperature Ratings
Classi
fi
cation
Sprinkler
Cover Plate
Max. Ambient Temp.
Ordinary
Ordinary
Ordinary
Intermediate
135°F/57°C
165°F/74°C
165°F/ 74°C
212°F/100°C
135°F/57°C
135°F/57°C
165°F/74°C
165°F/74°C
100°F/38°C
100°F/38°C
100°F/38°C
150°F/66°C
Technical Data
Sprinkler Inlet
Total
Adjustment
Nominal
Ori
fi
ce
Nominal K Factor
Thread
Approvals
Sprinkler
Identi
fi
cation
Number (SIN)
US
Metric
Non Adjustable
½” (13mm)
½” (15mm)
5.6
80
½” NPT (R½)
1, 2, 3
R6115
Adjustable
1½” (38mm)
½” (15mm)
5.6
80
1” NPT Male or Female
1, 2, 3
R6118
