2
Figure 1
Omega R-1M
Installation
The Model R-1M Sprinklers must
be installed according to current
NFPA 13, NFPA 13D or NFPA 13R
Standards. Deviations from these
Standards or any alteration to the
sprinkler itself will void any warranty
made by Central Sprinkler Company.
In addition, installation must also
meet local government provisions,
codes, and standards as applicable.
The system piping must be properly
sized to ensure the minimum required
flow rate at the sprinkler.
Prior to installation, check for the
proper model, style, orifice size, and
temperature rating prior to
installation. Install sprinklers after the
piping is in place to avoid mechanical
damage; replace any damaged units.
The Model R-1M Pendent
Sprinklers are not listed for use in dry
systems. Wet pipe systems must be
protected from freezing.
Upon completion of the installation,
the system must be tested per
recognized standards.
In the event of a thread leak,
remove the unit, apply new pipe joint
compound or tape, and reinstall.
2 7/8" Dia.
2" Dia. Max.
1 3/4" Dia. Min.
1 1/16" Max.
7/16" Min.
1/8"
R-1A Ceiling
Escutcheon
Note: Use this flange for
field installation. DO
NOT HOLD by deflector.
Pipe Drop
Reducing Coupling
Dust Cover
Installation Sequence
Step 1. The unit must be installed in
the pendent position. The R-1M
may be installed below a ceiling
with the deflector up to the
maximum allowed by NFPA of 4".
Step 2. The face of the sprinkler
fitting should be installed a nominal
7/16" minimum to 1 1/16" maximum
behind the finished ceiling line.
Adjustments may be made via the
push-on escutcheon plate to
compensate for variations in the
fittings.
Do not use the push-on escutcheon
plate to hold the unit in position. The
sprinkler will function properly, only
when the system piping is anchored
OBSOLETE
