Tyco RAPID RESPONSE LFII Series Manual

RAPID RESPONSE Series LFII Residential Sprinklers
4.9 K-factor Pendent
Wet Pipe and Dry Pipe Systems
General
Description
The TYCO RAPID RESPONSE Series
LFII Residential Pendent and Recessed
Pendent Sprinklers (TY2234) are deco-
rative, fast response, frangible bulb
sprinklers designed for use in residen-
tial occupancies such as homes, apart-
ments, dormitories, and hotels. When
aesthetics and optimized flow charac-
teristics are the major consideration,
the Series LFII Residential Sprinklers
(TY2234) should be the first choice.
The Series LFII Residential Sprinklers
are intended for use in the following
scenarios:
• wet and dry pipe residential sprin-
kler systems for one- and two-family
dwellings and mobile homes per
NFPA 13D
• wet and dry pipe residential sprinkler
systems for residential occupancies
up to and including four stories in
height per NFPA 13R
• wet and dry pipe sprinkler systems
for the residential portions of any
occupancy per NFPA 13
The recessed version of the Series
LFII Residential Sprinklers is intended
for use in areas with finished ceilings.
It employs a two-piece Style 20
Recessed Escutcheon. The Recessed
Escutcheon provides 1/4 inch (6,4
mm) of recessed adjustment or up to
1/2 inch (12,7 mm) of total adjustment
from the flush ceiling position. The
adjustment provided by the 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
components. Improper handling and
installation 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
Escutcheon reduces the accuracy to
which the pipe drops to the sprinklers
must be cut.
The Series LFII Residential Sprinklers
have been designed with heat sensi-
tivity and water distribution charac-
teristics proven to help in the control
of residential fires and to improve the
chance for occupants to escape or be
evacuated.
Dry Pipe System Application
The Series LFII Residential Pendent
and Recessed Pendent Sprinklers
offers a laboratory approved option for
designing dry pipe residential sprinkler
systems, whereas, most residential
sprinklers are laboratory approved for
wet systems only.
Through extensive testing, it has been
determined that the number of design
sprinklers (hydraulic design area) for
the Series LFII Residential Pendent and
Recessed Pendent Sprinklers (TY2234)
need not be increased over the number
of design sprinklers (hydraulic design
area) as specified for wet pipe sprinkler
systems, as is accustomed for density/
area sprinkler systems designed per
NFPA 13.
Consequently, the Series
Residential Sprinklers offer the features
of non-water filled pipe in addition to
not having to increase the number of
design sprinklers (hydraulic design
area) for systems designed to NFPA
13, 13D, or 13R. Non-water filled pipe
will permit options for areas sensitive
to freezing.
NOTICE
The Series LFII Residential Pendent and
Recessed Pendent Sprinklers (TY2234)
described herein must be installed and
maintained in compliance with this
document and the applicable stan-
dards of the National Fire Protection
Association, in addition to the standards
of any authorities having jurisdiction.
Failure to do so may impair the perfor-
mance of these devices.
APRIL 2013
Worldwide
Worldwide
www.tyco-fire.com
www.tyco-fire.com
Contacts
Contacts
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 with
any questions.
Sprinkler
Identification
Number (SIN)
TY2234
LFII
TFP400