3
Coverage Area Minimum Flow (Pressure) Req'd Temperature
Width (Ft.) Throw (Ft.) Single Sprinkler Two Sprinklers Rating
12 (or less) 12 (or less) 26 gpm (21.6 psi) 18 gpm (10.3 psi) 160oF/71oC
14 14 27 gpm (23.2 psi) 21 gpm (14.1 psi) 160oF/71oC
Design Requirements — Residential Applications
Design
Data
Installation Adjustments are made via the
adjustable sliding escutcheon plate to
compensate for variations in the
fittings.
The sprinkler will function properly,
only when the system piping is
anchored to the building structure.
Otherwise, reaction forces from
system initiation could alter the
sprinkler alignment and disrupt the
distribution pattern.
Step 3. Use only a non-hardening
pipe joint compound or Teflon* tape.
Apply to the male threads only.
Step 4. Hand tighten the sprinkler
into the fitting. Use an Omega
Sidewall Sprinkler Wrench to tighten
the assembly into the fitting. A leak
tight joint requires the application of
only 7-14 ft.-lbs. of torque. A
tangential force of 14-28 lbs.
delivered through a 6" long rachet
handle will deliver adequate torque.
Torque levels over 21 ft.-lbs may
distort the orifice seal, resulting in
leakage.
Step 5. To install the escutcheon
plate, align it with and press it over
the sprinkler body until the outer edge
of the escutcheon meets the
mounting surface.
Do not over or under tighten the
sprinkler to compensate for
inaccurate escutcheon plate
adjustment.
Model HEC-12 RES sprinklers must
be installed in accordance with
current NFPA 13, NFPA 13R or
NFPA 13D. Deviations from these
requirements and 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 from the sprinkler.
Prior to installation, check for
proper model, style, orifice size, and
temperature rating. Install sprinklers
after the piping is in place to avoid
mechanical damage; replace any
damaged unit. 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.
Installation Sequence
Step 1. The unit must be installed in
the horizontal position.
Step 2. The face of the sprinkler
fitting should be installed 1" (±1⁄8")
behind the finished wall line.
Caution: Special care must be
taken when installing with a CPVC
system. Sprinklers must be installed
after the CPVC manufacturer's
recommended setting time for the
primer and cement to ensure that
neither accumulate within the
sprinkler.
Special care must be taken when
installing with a copper system.
Sprinklers must be installed only after
the inside of the sprinkler nipple and
associated fittings have been wire
brushed to remove any flux. Residual
flux can cause corrosion and in
extreme cases can impair proper
sprinkler operation.
* Teflon is a trademark of the DuPont Corp.
Care &
Maintenance
Sprinklers must be handled
carefully. They must not be
transported or stored where ambient
temperatures may exceed 100oF/
38oC. For best results, store them in
a cool, dry location in the original
shipping package.
Do not install sprinklers that have
been dropped or visibly damaged.
Sprinklers must never be painted,
coated, plated, or altered in any other
way from manufactured condition or
they may not function properly. Any
sprinklers altered in such manner
must be replaced.
The owner is responsible for the
proper working condition of all fire
protection devices and accessories.
The NFPA Standard 25 entitled,
“Inspection, Testing and Maintenance
of Water-Based Fire Protection
Systems”
, contains guidelines and
minimum maintenance requirements.
Furthermore, the local
Authority
Having Jurisdiction
may have
additional regulations and
requirements for maintenance,
testing, and inspection that must be
obeyed.
It is advisable to have sprinkler
systems inspected regularly by a
qualified inspection service. Length
of time between such inspections can
vary due to accessibility, ambient
atmosphere, water supply, and site
In residential applications, the Model HEC-12 RES, 160
o
F rated sprinklers are
Listed for installation 4" to 6" below the ceiling.
