Submittal Sheet

Page ： 1 of 8
Document No.U085167
Date ： Nov/20/2019
SENJU SPRINKLER CO., LTD.
Residential Lead Free Flat Concealed Sprinkler,
Pendent,
Model: RC-RES, K-Factor: 4.9, SIN: SS8464
GENERAL DESCRIPTION
The Model RC-RES Residential Flat Concealed Sprinklers are automatic sprinklers of the compressed fusible solder type. They
are decorative and fast responding. The Cover Plate Assembly hides the Deflector, Heat Responsive Element etc., which is
concealed above the ceiling. The cover plate has a flat profile, and its diameter is extremely small (2-5/8 inch, 68mm). The
push-on and/or thread-on, thread-off design of the concealed cover plate assembly allows for easy installation of the cover plate.
Therefore, the Model RC-RES should be your first choice when aesthetics is the major consideration for ultimate appeal and
unbeatable performance is desired. The Model RC-RES is designed for residential occupancies and is perfect for use in homes,
hotels and other living quarters.
The Model RC-RES is to be used in wet pipe residential sprinkler systems for One- and Two- Family Dwellings and
Manufactured 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 occupancies per NFPA 13.
The Model RC-RES has a 4.9 (70.6 LPM/bar
1/2
) K-factor that meets the required residential flow rates with minimal residual
pressure, which allows for smaller pipe sizes and water supply requirements.
For extended installation flexibility, the Model RC-RES provides 1/2 inch (12.8mm) vertical adjustment. This adjustment in
installation decreases the need for precise cutting of the pipe that drops to the sprinkler and allows for a perfect fit with a range of
pipe lengths.
The heat sensitivity and water distribution design of Model RC-RES allows for an increased chance of residents to escape or
evacuate in case of a fire. However, residential fire sprinkler systems are not a substitute for fire safety awareness or fire safety
construction required by building codes.
“Lead Free” is defined in the Reduction of Lead in Drinking Water Act (S.3874) endorsed by AWWA’s Water Utility Council, and
California Assembly Bill #1953 as having less than or equal to a weighted average of 0.25% lead in wetted surface of pipes,
plumbing fittings and fixtures.
WARNINGS
The Model RC-RES must be installed and maintained in accordance with the rules stated herein as well as in
compliance with the applicable standards of the National Fire Protection Association regulations and the standards of
any other authorities having jurisdiction.
In the event of this condition, consult the authorities having jurisdiction for guidance and approval.
Failure to do so may impair the integrity of these devices.
It is the responsibility of the installing contractor to provide a copy of this document to the owner or their
representative, and in turn, it is the obligation of the owner to provide a copy of this document to a succeeding owner.
The owner is responsible for maintaining their fire protection system and devices in proper operating condition. The
installing contractor or sprinkler manufacturer should be contacted with any related questions.