Tyco LFII Series Manual

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Series LFII Residential
Horizontal Sidewall Sprinklers
4.2 K-factor
General
Description
The Series LFII (TY1334) 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 aesthetics and optimized
flow characteristics are the major con-
sideration, the Series LFII (TY1334)
should be the first choice.
The Series LFII are to be used in wet
pipe residential sprinkler systems for
one- and two-family dwellings and mo-
bile homes per NFPA 13D; wet pipe
residential sprinkler systems for resi-
dential occupancies up to and includ-
ing four stories in height per NFPA
13R; or, wet pipe sprinkler systems for
the residential portions of any occu-
pancy per NFPA 13.
The Series LFII (TY1334) has a 4.2
(60,5) K-factor that provides the re-
quired residential flow rates at reduced
pressures, enabling smaller pipe sizes
and water supply requirements.
The recessed version of the Series
LFII (TY1334) 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.
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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 (TY1334) 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.
WARNINGS
The Series LFII (TY1334) 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 TY1334
JANUARY, 2006
TFP410