RAPID RESPONSE Series LFII Residential
4.2 K-factor Concealed Horizontal Sidewall Sprinkler
Wet Pipe Systems
General
Description
The TYCO RAPID RESPONSE Series
LFII Residential 4.2 K-factor Concealed
Horizontal Sidewall Sprinkler (TY2324)
is a decorative, fast response, fusible
link sprinkler designed for use in res-
idential occupancies such as homes,
apartments, dormitories, and hotels.
The Series LFII Concealed Horizontal
Sidewall Sprinkler is intended for use
in the following scenarios:
• Wet pipe residential sprinkler sys-
tems for one- and two- family dwell-
ings and mobile homes per NFPA
13D
• Wet pipe residential sprinkler sys-
tems for residential occupancies up
to and including four stories in height
per NFPA 13R
• Wet pipe sprinkler systems for the
residential portions of any occu-
pancy per NFPA 13
The Series LFII Concealed Horizontal
Sidewall Sprinkler is intended for use in
areas with finished walls, and provides
¼ in. (6,4 mm) of recessed adjustment.
The adjustment reduces the accuracy
to which the pipe nipples to the sprin-
klers must be cut.
The Series LFII Concealed Horizontal
Sidewall Sprinkler has been designed
with heat sensitivity and water distri-
bution characteristics proven to help
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
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
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 8
in the control of residential fires and to
improve the chance for occupants to
escape or be evacuated.
NOTICE
The Series LFII Concealed Horizontal
Sidewall Sprinkler described herein
must be installed and maintained in
compliance with this document and the
applicable standards of the NATIONAL
FIRE PROTECTION ASSOCIATION
(NFPA), in addition to the standards
of any authorities having jurisdiction.
Failure to do so may impair the perfor-
mance of these devices.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. Contact the installing contrac-
tor or product manufacturer with any
questions.
Sprinkler
Identification
Number (SIN)
TY2324
Technical
Data
Approvals
UL and C-UL Listed (for use with wet pipe
systems)
Certified to all requirements of
NSF/ANSI 61
See the Design Criteria section for details
on these approvals.
Maximum Working Pressure
175 psi (12,1 bar)
Discharge Coefficient
K=4.2 gpm/psi
½
(60,5 lpm/bar
Temperature Rating
160°F (71°C) Sprinkler with
139°F (59°C) Cover Plate
Note: The maximum ambient ceiling tem-
perature for the ordinary temperature con-
figuration is 100°F (38°C).
AUGUST 2019
Worldwide
Contacts
Horizontal Adjustment
¼ in. (6,35 mm)
Finishes
See the Ordering Procedure section
Physical Characteristics
Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brass
Bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Button . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Sealing Assembly . . Beryllium Nickel w/TEFLON
Soldered Link Halves . . . . . . . . . . . . . . . . Nickel
Compression Screw . . . . . . . . . . Stainless Steel
Trepan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brass
Deflector . . . . . . . . . . . . . . . . . . . . . . . . . Copper
Deflector Guide Pin . . . . . . . . . . . Stainless Steel
Plug . . . . . . . . . . . . . . . . . . . . . . . . . Polyethylene
Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Retainer . . . . . . . . . . . . . . . . Copper Plated Steel
Cover Plate . . . . . . . . . . . . . . . . . . . . . . . Copper
Cover Plate Ejection Spring . . . . Stainless Steel
Operation
When exposed to heat from a fire, the
Cover Plate, which is soldered to the
Retainer Ring at three points, falls away
to expose the Sprinkler Assembly. The
link's solder melts when exposed to
heat. When the rated temperature is
reached, the melted solder releases the
link, activating the sprinkler and allow-
ing water to flow.
½
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www.tyco-fire.com
TFP445
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