Rapid Response LFII Series Manual

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Series LFII Residential, NFPA 13 Optimized
Horizontal Sidewall Sprinklers
5.6 K-factor
General
Description
The Series LFII (TY3334) Residential
Horizontal Sidewall Sprinklers are
decorative, fast response, frangible
bulb sprinklers designed for use in
residential occupancies such as
homes, apartments, dormitories, and
hotels. When enhanced flow charac-
teristics for residential portions of any
occupancy per NFPA 13 is the major
consideration, the Series
(TY3334) should be the first choice.
When higher flow demands are re-
quired for residential sprinklers used in
an NFPA 13 design, the large 5.6 K-
factor of the Series LFII (TY3334) is an
attractive choice. Although mostly in-
tended where residential sprinklers
are to be used in an NFPA 13 design,
the Series LFII (TY3334) can also be
used in wet pipe residential sprinkler
systems for one- and two-family dwell-
ings and mobile homes per NFPA 13D,
and wet pipe residential sprinkler sys-
tems for residential occupancies up to
and including four stories in height per
NFPA 13R.
The recessed version of the Series
LFII (TY3334) is intended for use in
areas with finished walls. It employs a
two-piece Style 20 Recessed Escutch-
eon. The Recessed Escutcheon pro-
vides 1/4 inch (6,4 mm) of recessed
IMPORTANT
Always refer to Technical Data
Sheet TFP700 for the "INSTALLER
WARNING" that provides cautions
with respect to handling and instal-
lation of sprinkler systems and com-
ponents. Improper handling and in-
stallation can permanently damage
a sprinkler system or its compo-
nents and cause the sprinkler to fail
to operate in a fire situation or cause
it to operate prematurely.
Page 1 of 6
adjustment or up to 1/2 inch (12,7 mm)
of total adjustment from the flush
mounting surface position. The adjust-
ment provided by the Recessed Es-
cutcheon reduces the accuracy to
which the pipe nipples to the sprinklers
must be cut.
The Series LFII (TY3334) has been
designed with heat sensitivity and
water distribution characteristics
proven to help in the control of residen-
tial fires and to improve the chance for
occupants to escape or be evacuated.
LFII
WARNINGS
The Series LFII (TY3334) Residential
Horizontal Sidewall Sprinklers de-
scribed herein must be installed and
maintained in compliance with this
document, as well as with the applica-
ble standards of the National Fire Pro-
tection Association, in addition to the
standards of any other authorities hav-
ing jurisdiction. Failure to do so may
impair the performance of these de-
vices.
The owner is responsible for maintain-
ing their fire protection system and de-
vices in proper operating condition.
The installing contractor or sprinkler
manufacturer should be contacted
with any questions.
Sprinkler/Model
Identification
Number
SIN TY3334
JANUARY, 2006
TFP415