Tyco LFII Series User manual

Page 1 of 6 MARCH 2022 TFP412
Worldwide
Contacts
www.tyco-fire.com
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.
Scan the QR code or enter the URL
in a web browser to access the most
up-to-date electronic version of this
document. Data rates may apply.
docs.jci.com/tycofire/series-lfii-
res-4_4k-hori-side-wet-pipe
Series LFII Residential Sprinklers
4.4 K-factor Horizontal Sidewall
Wet Pipe Systems
General
Description
The TYCO Series LFII Residential Hor-
izontal Sidewall Sprinklers (TY2334)
are decorative, fast response, frangi-
ble 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 Residential
Sprinklers (TY2334) should be the first
choice.
The Series LFII Residential Sprinklers
are 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 recessed version of the Series
LFII Residential Sprinklers is intended
for use in areas with finished walls.
It employs a two-piece Style 20
Recessed Escutcheon. The Recessed
Escutcheon provides 1/4 in. (6,4 mm)
of recessed adjustment or up to 1/2 in.
(12,7 mm) of total adjustment from the
flush mounting surface position. The
adjustment provided by the Recessed
Escutcheon reduces the accuracy to
which the pipe nipples to the sprinklers
must be cut.
The Series LFII Residential Sprinklers
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.
Corrosion-resistant coatings, where
applicable, are utilized to extend the life
of copper alloy sprinklers beyond that
which would otherwise be obtained
when exposed to corrosive atmo-
spheres. Although corrosion-resistant
coated sprinklers have passed the
standard corrosion tests of the appli-
cable Approval agencies, the testing is
not representative of all possible cor-
rosive atmospheres. Consequently,
it is recommended that the end user
be consulted with respect to the suit-
ability of these coatings for any given
corrosive environment. The effects of
ambient temperature, concentration of
chemicals, and gas/chemical velocity
should be considered, as a minimum,
along with the corrosive nature of the
chemical to which the sprinklers will be
exposed.
NOTICE
The Series LFII Residential Horizontal
Sidewall Sprinklers (TY2334) described
herein must be installed and main-
tained in compliance with this docu-
ment and with 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 performance 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.

TFP412
Page 2 of 6
Sprinkler
Identification
Number (SIN)
TY2334
Maximum Working Pressure
Maximum 175 psi (12,1 bar)
Discharge Coefficient
K= 4.4 GPM/psi½(63,4 LPM/bar½)
Temperature Rating
155°F (68°C) or 175°F (79°C)
Finishes
Natural Brass, Signal White Polyester
Coated, or Chrome Plated
Physical Characteristics
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Button . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Sealing Assembly . Beryllium Nickel w/ TEFLON
Bulb . . . . . . . . . . . . . . . . . . . . . . . . . .3 mm Glass
Compression Screw . . . . . . . . . . . . . . . . .Bronze
Deflector . . . . . . . . . . . . . . . . . . . . . . . . . Copper
Technical
Data
Approvals
UL and C-UL Listed
Certified to all requirements of
NSF/ANSI 61
Australian WaterMark Certified
Note: Sprinklers with a polyester finish
are UL Listed as corrosion-resistant
sprinklers.
See the Design Criteria section for details
on these approvals.
Sealing
-
3
5
4
*
6
Compression
of Deector.
is indicated on top
Temperature rating
Bulb
Deector
-
-
-
*
1
Components:
2
Button
Frame
-
-WRENCH
STYLE 20
RECESSED
ESCUTCHEON
FLATS
2-7/8" DIA.
RECESSED
(73,0 mm)
5
NOMINAL
PLATE SEATING
SURFACE
ESCUTCHEON
MAKE-IN
CENTERLINE
OF WATERWAY
7/16" (11,1 mm)
(54,0 mm)
(38,1 mm)
DEFLECTOR
BOSS
(11,1 mm)
7/16"
END-OF-
2-1/8"
1-1/2"
DEFLECTOR
TOP-OF-
42
6*
1
3
Assembly
Screw
TOP
1/2" NPT
FLATS
WRENCH
1-1/4" (31,8 mm)
1" (25,4 mm)
MOUNTING
PLATE
TY2334
MOUNTING
SURFACE
CLOSURE
(73,0 mm)
1/2" (12,7 mm)
(57,2 mm)
2-1/4" DIA.
1/4" (6,4 mm)
1/8"
(3,2 mm)
(11,1±3,2 mm)
SPRINKLER
FITTING
FACE OF
7/16±1/8"
2-7/8" DIA.
BOSS
END-OF-
DEFLECTOR
TOP-OF-
DEFLECTOR
7/16"
(11,1 mm)
WRENCH RECESS
(END "A" USED
FOR TY2334)
RECESS
WRENCH
WITH SPRINKLER
ENGAGEMENT
IN TO ENSURE
WRENCHING AREA
PUSH WRENCH
FIGURE 1
SERIES LFII RESIDENTIAL HORIZONTAL SIDEWALL
AND RECESSED HORIZONTAL SIDEWALL SPRINKLERS (TY2334)
FIGURE 2
STYLE 20 RECESSED ESCUTCHEON
FOR USE WITH THE SERIES LFII
RESIDENTIAL HORIZONTAL SIDEWALL SPRINKLER (TY2334)
FIGURE 3
W-TYPE 6
SPRINKLER WRENCH
FIGURE 4
W-TYPE 7 RECESSED
SPRINKLER WRENCH

TFP412
Page 3 of 6
Operation
The glass bulb contains a fluid that
expands when exposed to heat. When
the rated temperature is reached, the
fluid expands sufficiently to shatter the
glass bulb allowing the sprinkler to acti-
vate and flow water.
Design
Criteria
The TYCO Series LFII (TY2334) Resi-
dential Horizontal Sidewall Sprinklers
are UL and C-UL Listed for installation
in accordance with this section.
Residential Sprinkler Design Guide
When conditions exist that are outside
the scope of the provided criteria, refer
to the Residential Sprinkler Design
Guide TFP490 for the manufactur-
er’s recommendations that may be
acceptable to the local authority having
jurisdiction.
System Type
Only wet pipe systems may be utilized.
Ceiling Type
Smooth flat horizontal, or beamed, or
sloped, in accordance with the 2013
Edition of NFPA 13D, 13R, or 13 as
applicable.
Hydraulic Design
(NFPA 13D and 13R)
For systems designed to NFPA 13D or
NFPA 13R, the minimum required sprin-
kler flow rate are given in Table A as a
function of temperature rating and the
maximum allowable coverage areas.
The sprinkler flow rate is the minimum
required discharge from each of the
total number of design sprinklers as
specified in NFPA 13D or NFPA 13R.
Hydraulic Design
(NFPA 13)
For systems designed to NFPA 13, the
number of design sprinklers is to be
the four most hydraulically demanding
sprinklers. The minimum required dis-
charge from each of the four sprinklers
is to be the greater of the following:
• The flow rates given in Table A as a
function of temperature rating and
the maximum allowable coverage
area.
• A minimum discharge of 0.1 gpm/ft2
over the “design area” comprised of
the four most hydraulically demand-
ing sprinklers for the actual cover-
age areas being protected by the
four sprinklers.
Obstruction to Water Distribution
Sprinklers are to be located in accor-
dance with the obstruction rules of
NFPA 13D, 13R, and 13 as applicable
for residential sprinklers as well as with
the obstruction criteria described within
the Technical Data Sheet TFP490.
Operational Sensitivity
The sprinklers are to be installed with
an end of defector-boss to wall dis-
tance of 1-1/8 in. to 6 in.
In addition the top-of-deflector-to-
ceiling distance is to be within the
range (see Table A) being hydraulically
calculated.
Sprinkler Spacing
The minimum spacing between sprin-
klers is 8 ft (2,4 m). The maximum
spacing between sprinklers cannot
exceed the width of the coverage area
(see Table A) being hydraulically calcu-
lated, for example, maximum 12 ft for a
12 ft x 12 ft coverage area, or 16 ft for a
16 ft x 20 ft coverage area.
Installation
The TYCO Series LFII (TY2334) Resi-
dential Horizontal Sidewall Sprinklers
must be installed in accordance with
this section.
General Instructions
Do not install any bulb-type sprinkler
if the bulb is cracked or there is a loss
of liquid from the bulb. With the sprin-
kler held horizontally, a small air bubble
should be present. The diameter of the
air bubble is approximately 1/16 in.
(1,6 mm).
A leak-tight 1/2 in. NPT sprinkler joint
should be obtained by applying a
minimum to maximum torque of 7 to
14 lb-ft (9,5 to 19,0 N∙m). Higher levels
of torque can distort the sprinkler Inlet
with consequent leakage or impairment
of the sprinkler.
Do not attempt to compensate for
insufficient adjustment in the sprinkler
by under- or over-tightening the sprin-
kler. Re-adjust the position of the sprin-
kler fitting to suit.
Series LFII Residential Horizontal
Sidewall Sprinklers
The Series LFII Horizontal Sidewall
Sprinklers must be installed in accor-
dance with the following instructions.
Step 1. Horizontal sidewall sprinklers
are to be installed in the horizontal
position with their centerline of water-
way perpendicular to the back wall and
parallel to the ceiling. The word “TOP”
on the Deflector is to face towards
the ceiling with the front edge of the
Deflector parallel to the ceiling.
Step 2. With pipe thread sealant
applied to the pipe threads, hand
tighten the sprinkler into the sprinkler
fitting.
Step 3. Tighten the sprinkler into
the sprinkler fitting using only the
W-Type 6 Sprinkler Wrench (see Fig-
ure 3). With reference to Figure 1, the
W-Type 6 Sprinkler Wrench is to be
applied to the wrench flats.
Series LFII Residential Recessed
Horizontal Sidewall Sprinklers
The Series LFII Recessed Horizontal
Sidewall Sprinklers must be installed
in accordance with the following
instructions.
Step A. Recessed horizontal sidewall
sprinklers are to be installed in the hor-
izontal position with their centerline of
waterway perpendicular to the back
wall and parallel to the ceiling. The
word “TOP” on the Deflector is to face
towards the ceiling.
Step B. After installing the Style 20
Mounting Plate over the sprinkler
threads and with pipe thread seal-
ant applied to the pipe threads, hand
tighten the sprinkler into the sprinkler
fitting.
Step C. Tighten the sprinkler into the
sprinkler fitting using only the W-Type
7 Recessed Sprinkler Wrench (see Fig-
ure 4). With reference to Figure 1, the
W-Type 7 Recessed Sprinkler Wrench
is to be applied to the sprinkler wrench
flats.
Step D. After the wall has been
installed or the finish coat has been
applied, slide on the Style 20 Closure
over the Series LFII Sprinkler and push
the Closure over the Mounting Plate
until its flange comes in contact with
the wall.

TFP412
Page 4 of 6
Max. Coverage
Area (a)
Width x Length (d)
ft x ft
(m x m)
Max.
Spacing
ft
(m)
WET PIPE SYSTEM
Minimum Flow and Residual Pressure(b, c)
Ordinary Temp. Rating
155°F (68°C)
Intermediate Temp. Rating
175°F (79°C) Deflector to
Ceiling
Installation
Type
Minimum
Spacing
ft
(m)
Flow
GPM
(L/min)
Pressure
PSI
(bar)
Flow
GPM
(L/min)
Pressure
PSI
(bar)
12 x 12
(3,7 x 3,7)
12
(3,7)
13
(49,2)
8.7
(0,60)
13
(49,2)
8.7
(0,60)
4 in. to
6 in.
Recessed
using Style 20
Escutcheon or
non-recessed
per NFPA 13D,
13R, or 13
8
(2,4)
14 x 14
(4,3 x 4,3)
14
(4,3)
14
(53,0)
10.1
(0,70)
14
(53,0)
10.1
(0,70)
16 x 16
(4,9 x 4,9)
16
(4,9)
16
(60,6)
13.2
(0,91)
16
(60,6)
13.2
(0,91)
16 x 18
(4,9 x 5,5)
16
(4,9)
19
(71,9)
18.6
(1,28)
19
(71,9)
18.6
(1,28)
16 x 20
(4,9 x 6,1)
16
(4,9)
23
(87,1)
27. 3
(1,88)
23
(87,1)
27. 3
(1,88)
18 x 18
(5,5 x 5,5)
18
(5,5)
23
(87,1)
27. 3
(1,88)
23
(87,1)
27. 3
(1,88)
18 x 20
(5,5 x 6,1)
18
(5,5)
26
(98,4)
34.9
(2,41)
26
(98,4)
34.9
(2,41)
12 x 12
(3,7 x 3,7)
12
(3,7)
13
(49,2)
8.7
(0,60)
13
(49,2)
8.7
(0,60)
6 in. to
12 in.
14 x 14
(4,3 x 4,3)
14
(4,3)
14
(53,0)
10.1
(0,70)
14
(53,0)
10.1
(0,70)
16 x 16
(4,9 x 4,9)
16
(4,9)
17
(64,3)
14.9
(1,03)
17
(64,3)
14.9
(1,03)
16 x 18
(4,9 x 5,5)
16
(4,9)
20
(75,7)
20.7
(1,43)
20
(75,7)
20.7
(1,43)
16 x 20
(4,9 x 6,1)
16
(4,9)
23
(87,1)
27. 3
(1,88)
23
(87,1)
27. 3
(1,88)
18 x 18
(5,5 x 5,5)
18
(5,5)
23
(87,1)
27. 3
(1,88)
23
(87,1)
27. 3
(1,88)
18 x 20
(5,5 x 6,1)
18
(5,5)
26
(98,4)
34.9
(2,41)
26
(98,4)
34.9
(2,41)
Notes:
a. For coverage area dimensions less than or between those indicated, use the minimum required ow for the next highest coverage area for which hydraulic design criteria
are stated.
b. Requirement is based on minimum ow in GPM (LPM) from each sprinkler. The associated residual pressures are calculated using the nominal K-factor. See Hydraulic
Design under the Design Criteria section.
c. For NFPA 13 residential applications, the greater of 0.1 gpm/ft2over the design area or the ow in accordance with the criteria in this table must be used.
d. The Width x Length dimension refers to the Width (backwall where the sprinkler is located) times the Length (horizontal throw of sprinkler).
TABLE A
WET PIPE SYSTEMS
SERIES LFII (TY2334) RESIDENTIAL HORIZONTAL SIDEWALL
AND RECESSED HORIZONTAL SIDEWALL SPRINKLERS
NFPA 13D, 13R AND 13 WET PIPE HYDRAULIC DESIGN CRITERIA

TFP412
Page 5 of 6
Care and
Maintenance
The TYCO Series LFII (TY2334) Resi-
dential Horizontal Sidewall Sprinklers
must be maintained and serviced in
accordance with this section.
Before closing a fire protection system
main control valve for maintenance
work on the fire protection system
which it controls, permission to shut
down the affected fire protection
system must be obtained from the
proper authorities and all personnel
who may be affected by this action
must be notified.
Absence of an Escutcheon Plate may
delay the sprinkler operation in a fire
situation.
The owner must assure that the sprin-
klers are not used for hanging any
objects and that the sprinklers are only
cleaned by means of gently dusting
with a feather duster; otherwise, non-
operation in the event of a fire or inad-
vertent operation may result.
Sprinklers which are found to be
leaking or exhibiting visible signs of
corrosion must be replaced.
Automatic sprinklers must never be
painted, plated, coated, or other-
wise altered after leaving the factory.
Modified sprinklers must be replaced.
Sprinklers that have been exposed to
corrosive products of combustion, but
have not operated, should be replaced
if they cannot be completely cleaned
by wiping the sprinkler with a cloth or
by brushing it with a soft bristle brush.
Care must be exercised to avoid
damage to the sprinklers - before,
during, and after installation. Sprin-
klers damaged by dropping, striking,
wrench twist/slippage, or the like, must
be replaced. Also, replace any sprinkler
that has a cracked bulb or that has lost
liquid from its bulb. See the Installation
section for additional information.
The owner is responsible for the
inspection, testing, and maintenance of
their fire protection system and devices
in compliance with this document, as
well as with the applicable standards
of the NATIONAL FIRE PROTECTION
ASSOCIATION, for example, NFPA 25,
in addition to the standards of any other
authorities having jurisdiction. Contact
the installing contractor or product
manufacturer with any questions.
Automatic sprinkler systems are rec-
ommended to be inspected, tested,
and maintained by a qualified Inspec-
tion Service in accordance with local
requirements and/or national codes.
Limited
Warranty
For warranty terms and conditions,
visit www.tyco-fire.com.
Ordering
Procedure
Contact your local distributor for avail-
ability. When placing an order, indicate
the full product name and Part Number
(P/N):
Sprinkler Assembly
Specify: Series LFII (TY2334), K=4.4,
Residential Horizontal Sidewall Sprin-
kler, (specify) temperature rating,
(specify) finish, P/N (specify):
155°F (68°C)
Natural Brass ................. 51-215-1-155
Signal White (RAL9003)
Polyester1....................51-215-4-155
Chrome Plated ................51-215-9-155
175°F (79°C )
Natural Brass ................. 51-215-1-175
Signal White (RAL9003)
Polyester1....................51-215-4-175
Chrome Plated . . . . . . . . . . . . . . . . 51-215-9-175
1. UL Listed as corrosion-resistant.
Recessed Escutcheon
Specify: Style 20 Recessed Escutcheon
with (specify*) finish, P/N (specify*).
* Refer to Technical Data Sheet TFP770.
Sprinkler Wrench
Specify: W-Type 6 Sprinkler Wrench,
P/N 56-000-6-387
Specify: W-Type 7 Sprinkler Wrench,
P/N 56-850-4-001

TFP412
Page 6 of 6
NATIONAL FIRE PROTECTION ASSOCIATION and NFPA are registered trademarks of National Fire Protection Association;
TEFLON is a trademark of The Chemours Company FC, LLC
1400 Pennbrook Parkway, Lansdale, PA 19446 | Telephone [phone]
© 2022 Johnson Controls. All rights reserved. All specifications and other information shown were current as of document revision date and are subject to change without notice.