CENTRAL ROC Manual

CENTRAL
Model ROC
Residential Optima
4.2 K-factor -
Fast Response Residential
Concealed Pendent Fusible Link Automatic Sprinkler
Tyco Fire Products --- www.centralsprinkler.com
451 North Cannon Avenue, Lansdale, Pennsylvania 19446 --- USA
Customer Service/Sales: Tel: (215) 362-0700 / Fax: (215) 362-5385
Technical Services: Tel: (800) 381-9312 / Fax: (800) 791-5500
General
Description
The Central ROC - Residential Optima
Concealed, 4.2 K-factor, Residential
Pendent Sprinklers are decorative
sprinklers featuring a flat cover plate
designed for use in residential occupan-
cies such as homes, apartments,
dormitories, and hotels.
They are to be used in wet pipe
residential sprinkler systems for one-
and two-family dwellings and mobile
homes per NFPA 13D; wet pipe
residential sprinkler systems for
residential occupancies up to and
including four stories in height per
NFPA 13R; or wet pipe sprinkler
systems for the residential portions of
any occupancy per NFPA 13.
The Cover Plate Assembly conceals the
sprinkler operating components above
the ceiling. The separable two-piece
design of the Cover Plate and Support
Cup Assemblies allows installation of
the sprinklers and pressure testing of
the fire protection system prior to
installation of a suspended ceiling or
application of the finish coating to a
fixed ceiling. They also permit removal
of suspended ceiling panels for access
to building service equipment without
having to first shut down the fire
protection system and remove sprin-
klers. Also, the separable two-piece
design of the the Sprinkler provides for
1/2 inch (12,7 mm) of vertical adjust-
ment, to reduce the accuracy to which
the length of fixed pipe drops to the
sprinklers must be cut.
The ROC Residential Pendent Sprin-
klers are shipped with a Disposable
Protective Caps. The Protective Cap is
temporarily removed to install the ROC,
and then replaced to protect the ROC
while the ceiling is being installed and
finished. The tip of the Cap can also be
ROC
TM
Concealed
used to mark the center of the ceiling
hole into plaster board, ceiling tiles, etc.
by pushing the ceiling product against
the Cap. When the ceiling installation is
complete, the Cap is removed and the
Cover Plate Assembly installed.
Operation: When exposed to heat from
a fire, the Cover Plate, which is normally
soldered to the Support Cup at three
points, falls away to expose the
Sprinkler Assembly. At this point the
Deflector supported by the Arms drops
down to its operational position. The
fusible link of the Sprinkler Assembly is
comprised of two link halves which are
joined together by a thin layer of solder.
When the rated temperature is reached,
the solder melts and the two link halves
seperate, which then allows the
sprinkler to activate and flow water.
WARNING
The ROC Residential Pendent
Sprinklers described herein must be
installed and maintained in compli-
ance with this document, as well as
with the applicable standards of the
National Fire Protection Association,
in addition to the standards of any
other authorities having jurisdiction.
Failure to do so may impair the
integrity of these devices.
Because of the above cited stipula-
tions and the varied nature of
residential type architecture, there
will be some compartment designs
which cannot be fully sprinklered in
accordance with the recomendations
of NFPA 13, NFPA 13D, or
NFPA 13R. In the event of this
condition, consult the authorities
having jurisdiction for guidance and
approval.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating
condition. The installing contractor
or sprinkler manufacturer should be
contacted relative to any questions.
7-02
O P T I M A
Residential
Concealed
Pendent
Sprinklers
No. 4-5.0