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Series LFII Residential, NFPA13 Optimized
Horizontal Sidewall Sprinklers
5.8 K-factor
General
Description
The Tyco
Rapid Response
®
LFII (TY4334) Residential Horizontal
Sidewall Sprinklers are decorative, fast
response, frangible bulb sprinklers de-
signed for use in residential occupan-
cies such as homes, apartments, dor-
mitories, and hotels. When enhanced
flow characteristics for residential por-
tions of any occupancy per NFPA 13 is
the major consideration, the Series LFII
(TY4334) should be the first choice.
When higher flow demands are re-
quired for residential sprinklers used
in an NFPA 13 design, the large 5.8 K-
factor of the Series LFII (TY4334) is an
attractive choice. Although mostly in-
tended where residential sprinklers are
to be used in an NFPA 13 design, the
Series LFII (TY4334) can also be used
in wet pipe residential sprinkler sys-
tems 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
(TY4334) is intended for use in areas
with finished walls. It employs a two-
piece Style 20 Recessed Escutcheon.
The Recessed Escutcheon provides
1/4 inch (6,4 mm) of recessed adjust-
ment or up to 1/2 inch (12,7 mm) of to-
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 components
and cause the sprinkler to fail to
operate in a fire situation or cause it
to operate prematurely.
Page of 6
tal adjustment from the flush mounting
surface position. The adjustment pro-
vided by the Recessed Escutcheon re-
duces the accuracy to which the pipe
nipples to the sprinklers must be cut.
Series
™
The Series LFII (TY4334) has been de-
signed with heat sensitivity and water
distribution characteristics proven to
help in the control of residential fires
and to improve the chance for occu-
pants to escape or be evacuated.
WARNINGS
The Series LFII (TY4334) Residen-
tial 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
devices.
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 TY4334
FEBRUARY, 2008
TFP47
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