Johnson Controls tyco RAPID RESPONSE LFII Series User manual

Page 1 of 8 AUGUST 2019 TFP445
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.
Worldwide
Contacts
www.tyco-fire.com
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
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/psi½ (60,5 lpm/bar½)
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).
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.

TFP445
Page 2 of 8
1–Body 6–Deector Guide Pin 11 –Plug 16 –Retainer
2 – 1/2 in. NPT 7 – Frame 12 –Lever 17 –Retainer Friction Grip
3–Wrenching Notch 8–Button 13 –Compression Screw 18 – Cover Plate Solder Tab
4 – Sprinkler Waterway 9 – Sealing Assembly 14 –Link 19 –Cover Plate
5–Deector 10 –Bridge 15 –Protective Cap 20 – Cover Plate Ejection Spring
SPRINKLER
ASSEMBLY
COVER PLATE
ASSEMBLY
1
4
9
2
3
8
7
6
15
14
12
11
13
10
5
19
16
17
18
20
CENTERLINE
OF SPRINKLER
WATERWAY
MOUNTING
SURFACE
TOP OF
DEFLECTOR
OPERATED
COVER PLATE
ASSEMBLY
OPERATED
SPRINKLER
DEFLECTOR
IN OPERATED
POSITION
7/16"
(11,1 mm)
7/16"
(11,1 mm)
7/16" (11,3 mm) MIN.
11/16" (17,5 mm) MAX.
FIGURE 1
SERIES LFII RESIDENTIAL CONCEALED HORIZONTAL SIDEWALL SPRINKLER
ASSEMBLY AND FEATURES
FIGURE 2
SERIES LFII RESIDENTIAL CONCEALED HORIZONTAL SIDEWALL SPRINKLER
OPERATED CONDITION

TFP445
Page 3 of 8
Design
Criteria
The Series LFII Concealed Horizon-
tal Sidewall Sprinkler is UL and C-UL
Listed for installation in accordance
with the following criteria.
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.
Ceiling Types
Smooth flat horizontal, beamed, or
sloped, in accordance with the 2019
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 rates 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 ow rates given in Table A as
a function of deector to ceiling
distance and the maximum
allowable coverage area.
• A minimum discharge of 0.1 gpm/ft
2
over the “design area” comprised
of the four most hydraulically
demanding sprinklers for actual
coverage areas 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 applica-
ble for residential sprinklers as well as
with the obstruction criteria described
within the TYCO Technical Data Sheet
TFP490.
Operational Sensitivity
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 18 ft coverage area.
Maximum
Coverage Area
Width x Length
ft x ft
(m x m)
Maximum
Spacing
ft
(m)
Wet Pipe System
Minimum Flow and Residual Pressure
Ordinary Temp. Rating
160°F (71°C) Top-of-
Deflector-to-
Ceiling
Distance
Center-of-
Sprinkler-to-
Ceiling
Distance
Minimum
Spacing
ft
(m)
Flow
gpm
(lpm)
Pressure
psi
(bar)
12 x 12
(3,7 x 3,7)
12
(3,7)
12
(45,4)
8.2
(0,57)
4 in. to 6 in. 4-7/16 in. to
6-7/16 in.
8
(2,4)
14 x 14
(4,3 x 4,3)
14
(4,3)
13
(49,2)
9.6
(0,66)
16 x 16
(4,9 x 4,9)
16
(4,9)
18
(6 8,1)
18.4
(1,27)
16 x 18
(4,9 x 5,5)
16
(4,9)
21
(79,5)
25
(1,72)
12 x 12
(3,7 x 3,7)
12
(3,7)
13
(49,2)
9.6
(0,66)
6 in. to 12 in. 6-7/16 in. to
12-7/16 in.
14 x 14
(4,3 x 4,3)
14
(4,3)
15
(56,8)
12.8
(0,88)
16 x 16
(4,9 x 4,9)
16
(4,9)
18
(6 8,1)
18.4
(1,27)
16 x 18
(4,9 x 5,5)
16
(4,9)
22
(83,3)
27.4
(1,89)
TABLE A
WET PIPE SYSTEM
SERIES LFII RESIDENTIAL CONCEALED HORIZONTAL SIDEWALL SPRINKLER
NFPA 13D, 13R, AND 13 HYDRAULIC DESIGN CRITERIA

TFP445
Page 4 of 8
3/16" (4,8 mm)
5/32" (4,0 mm) GAP
*
*
FACE OF
SPRINKLER
FITTING
SPRINKLER
ASSEMBLY
WRENCHING
NOTCHES
PROTECTIVE
CAP
CENTERLINE
OF SPRINKLER
WATERWAY
MOUNTING
SURFACE
TOP OF
DEFLECTOR
CAP FULLY
SEATED ON
SPRINKLER
WRENCHING
FLANGE
2-5/8" (66,7 mm) DIA.
CLEARANCE HOLE
3-3/16" DIA.
(81,0 mm)
COVER
PLATE
WALL
CENTER
MARKING
TIP
RETAINER FLANGE
FLUSH AGAINST
MOUNTING SURFACE
SPRINKLER
BODY ENGAGED
BY RETAINER
FRICTION GRIPS
1/4" (6,4 mm)
ADJUSTMENT
COVER
PLATE
ASSEMBLY
1-9/16" ± 1/8"
(39,7 mm ± 3,2 mm)
7/16"
(11,1 mm)
NOTICE
Factory-assembled protective
cap to remain attached during
sprinkler installation.
Temporarily remove to verify
correct deflector orientation
and reinstall during wall
finishing.
Remove only after installation
is complete to allow proper
sprinkler performance.
LDPE cap may be
recycled accordingly.
RETAINER
COVER PLATE
MUST FEATURE ONLY
FACTORY FINISH,
DO NOT PAINT
FINISHED
CEILING
SPRINKLER BODY MARKING
INDICATES CORRECT
DEFLECTOR ORIENTATION
DEFLECTOR
-TO-CEILING
DISTANCE
SEE TABLE A
FIGURE 3
SERIES LFII RESIDENTIAL CONCEALED HORIZONTAL SIDEWALL SPRINKLER
INSTALLATION CRITERIA

TFP445
Page 5 of 8
4" (102 mm)
MAXIMUM TO MAINTAIN
SPRINKLER STABILITY
2-1/8" (54 mm)
REF.
SPRINKLER
AND COVER PLATE
ASSEMBLIES
PIPE GUIDE BRACKET
TAB FLUSH AGAINST
FACE OF STUD
2-3/4" (70 mm)
REF.
3/4" (DN20) x 1/2" NPT
CPVC SPRINKLER
ADAPTER FITTING
3/4" (DN20)
CPVC PIPE AND
90° ELBOW
1" (DN25)
CPVC PIPE AND
REDUCING
TEE
3/4" (DN20)
PIPE GUIDE
BRACKET
TYPICAL
2 x 4 STUD FRAME
AND SHEETROCK
WALL STRUCTURE
PIPE GUIDE BRACKET
LOCATES SPRINKLER AND
COVER PLATE ASSEMBLIES
AT OPTIMAL DISTANCES
FROM STUD SURFACES
FIGURE 4
SERIES LFII RESIDENTIAL CONCEALED HORIZONTAL SIDEWALL SPRINKLER
PIPE GUIDE BRACKET WALL INSTALLATION

TFP445
Page 6 of 8
SPRINKLER
ASSEMBLY
CENTERLINE
OF SPRINKLER
WATERWAY
SOFFIT
FINISHED
MOUNTING
SURFACE
TOP OF
DEFLECTOR
COVER
PLATE
ASSEMBLY
7/16"
(11,1 mm)
FINISHED
CEILING
DEFLECTOR
-TO-CEILING
DISTANCE
SEE TABLE A
SOFFIT
DEPTH
FINISHED
WALL
SOFFIT DEPTH:
8” (203 mm) MAXIMUM
PER NFPA 13, NFPA 13R
AND NFPA 13D
— or —
12” (305 mm) MAXIMUM
DIRECTLY ABOVE CABINETS
PER NFPA 13R AND NFPA 13D
FIGURE 5
SERIES LFII RESIDENTIAL CONCEALED HORIZONTAL SIDEWALL SPRINKLER
SOFFIT INSTALLATION CRITERIA

TFP445
Page 7 of 8
Installation
The Series LFII Concealed Horizontal
Sidewall Sprinkler must be installed in
accordance with this section.
General Instructions
Damage to the fusible link assembly
during installation can be avoided by
handling the sprinkler by the body only.
Do not apply pressure to the fusible link
assembly.
A leak-tight ½ 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 a Cover Plate
by under- or over-tightening the sprin-
kler. Re-adjust the position of the sprin-
kler fitting to suit.
RAPID RESPONSE Series LFII
Residential Concealed Horizontal
Sidewall Sprinklers
The Series LFII Concealed Horizontal
Sidewall Sprinkler must be installed
in accordance with the following
instructions.
Step 1. To ensure that the sprinkler is
located the correct distance from the
face of the surface wall, use the pro-
vided pipe guide, included with each
sprinkler TY2324, and attach it to the
¾ in. CPVC pipe and the 2 x 4 inside the
wall, as shown in Figure 4. The sprinkler
must only be installed with its center-
line perpendicular to the back wall and
parallel to the ceiling. Use a W-Type
37 Wrench for installation. The wrench
contains an outer flat surface reference
that correlates with the sprinkler deflec-
tor orientation. The word “UP” on the
installation wrench is to face towards
the ceiling to ensure proper alignment.
Note: The TYCO RAPID RESPONSE
Sprinkler can be installed in both CPVC
and standard steel piping/fittings.
NOTICE
Do not remove the Protective Cap until
the Cover Plate Assembly is installed
and/or the fire protection sprinkler
system is ready to be placed in service.
Step 2. With pipe thread sealant
applied to the sprinkler threads, align
the sprinkler alignment slot with the
W-Type 37 Sprinkler Wrench alignment
slot and engage by inserting the sprin-
kler into the wrench cavity, fully seating
the wrench shoulder against the sprin-
kler wrenching ange. Hand tighten the
sprinkler into the sprinkler tting.
Step 3. Once hand tight, attach an
½ in. (12,7 mm) drive to the sprinkler
wrench and wrench tighten to ensure
proper seal and alignment.
Step 4. After the wall has been com-
pleted with the nominal 2-5/8 in.
(66,7 mm) diameter clearance hole and
in preparation for installing the Cover
Plate Assembly, remove and discard
the Protective Cap. If the sprinkler has
been damaged in any way including
accidental over spray from finishing the
wall, replace the entire sprinkler.
NOTICE
The sprinkler must be installed in
neutral or negative pressure plenums
only.
Step 5. Push the Cover Plate Assem-
bly onto the sprinkler, and as neces-
sary, make the final adjustment of the
Cover Plate with respect to the wall by
pushing the Cover Plate Assembly until
the retainer flange is flush against the
wall. If it becomes necessary to remove
the Cover Plate, it can be removed by
gently pulling the Cover Plate Assembly
way from the sprinkler body.
Note: A Cover Plate Assembly not ade-
quately engaging the sprinkler body,
SPRINKLER
FITTING
WRENCHING
NOTCH
PROTECTIVE
CAP
PROTECTIVE
CAP
WRENCH
KEY
LFII
SPRINKLER
W-TYPE 37
SPRINKLER
WRENCH
WRENCH
CAVITY
SOCKET
ACCEPTS
1/2" DRIVE
WRENCH
ALIGNMENT
SLOT READILY
ORIENTS WRENCH
WITH SPRINKLER
ALIGNMENT
SLOT
THREE
WRENCH
KEYS
UNIQUELY
SPACED TO
ENGAGE
SPRINKLER
WRENCHING
NOTCHES
WRENCH
ALIGNMENT
SLOT
SPRINKLER
ALIGNMENT
SLOT
WRENCH
SHOULDER
SPRINKLER
WRENCHING
FLANGE
WRENCH
SHOULDER
SEATED ON
SPRINKLER
WRENCHING
FLANGE
WRENCH FLAT
ACCOMMODATES
LEVEL FOR PRECISE
ADJUSTMENT TO
DEFLECTOR
ORIENTATION
AS NEEDED
"UP" INDICATES
TOP OF DEFLECTOR
AND CORRECT
SPRINKLER
ORIENTATION
FIGURE 6
W-T YPE 37
SPRINKLER WRENCH

TFP445
Page 8 of 8
1400 Pennbrook Parkway, Lansdale, PA 19446 | Telephone [phone]
© 2019 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.
NATIONAL FIRE PROTECTION ASSOCIATION and NFPA are registered trademarks of National Fire Protection Association;
TEFLON is a registered trademark of DuPont; SHERWIN-WILLIAMS is a registered trademark of SWIMC LLC
that is not securely attached, indicates
the sprinkler is positioned at a distance
from the mounting surface greater than
is described if Figure 3. A Cover Plate
Assembly fully engaged on the sprin-
kler body while the retainer flange is
not in contact with the wall indicates
the sprinkler is positioned at a distance
from the mounting surface lesser than
described in Figure 3. If either condi-
tion is encountered when attempting
to install the Cover Plate Assembly, the
sprinkler fitting must me repositioned.
Care and
Maintenance
The Series LFII Concealed Horizontal
Sidewall Sprinkler 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
that it controls, obtain permission to
shut down the affected fire protection
systems from the proper authorities
and notify all personnel who may be
affected by this action.
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
authorities having jurisdiction. Contact
the installing contractor or sprinkler
manufacturer regarding 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.
When properly installed, there is a
nominal 5/32 in. (4,0 mm) air gap
between the lip and the Cover Plate
and the wall, as shown in Figure 3.
This air gap is necessary for the proper
operation of the sprinkler. If the wall
is to be repainted after installation of
the sprinkler, care must be exercised
to ensure that the new paint does not
seal off any of the air gap.
Factory painted cover plates must not
be repainted. They should be replaced
if necessary, by factory painted units.
Non-factory applies paints may
adversely delay or prevent sprinkler
operation in the event of a fire.
If removal of the Cover Plate is neces-
sary relative to the enclosure, be con-
scious not to be too forceful, where
separation may result.
Sprinklers that 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. Modi-
fied sprinklers must be replaced.
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.
If a sprinkler must be removed, do not
reinstall it or a replacement without
reinstalling the Cover Plate Assembly.
If a Cover Plate Assembly becomes
dislodged during service, replace it
immediately.
Sprinklers that are found to be leaking
or exhibiting visible signs of corrosion
must be replaced.
Automatic sprinklers must never be
painted, plated, coated or otherwise
altered after leaving the factory. Modi-
fied or over heated sprinklers must be
replaced.
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.
If a sprinkler must be removed, do not
reinstall it or a replacement without
reinstalling the Cover Plate Assembly.
If a Cover Plate Assembly becomes
dislodged during service, replace it
immediately.
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 (TY2324), K=4.2,
Residential Horizontal Sidewall Sprin-
kler, without Cover Plate Assembly,
P/N 50-520 -1-160
Note: Sprinkler and Cover Plates are
separately ordered. See below for
Cover Plate ordering information.
Cover Plate Assembly
(Separately Ordered)
Specify: Series LFII Concealed Sprin-
kler Cover Plate Assembly, (specify
finish), P/N (specify):
Ivo r y ( R A L10 15 ) . . . . . . . . . . . . . . .56-204-0 -135
Beige (RAL1001) . . . . . . . . . . . . . . 56-204-2-135
Pure White (RAL9010)* . . . . . . . . . 56-204-3-135
Signal White (RAL9003)** . . . . . . .56-204-4-135
Grey White (RAL9002) . . . . . . . . . . 56-204-5-135
Brown (RAL8028). . . . . . . . . . . . . .56-204-6-135
Black (RAL9005) . . . . . . . . . . . . . . 56 -204-7-135
Brushed Brass ................56-204-8-135
Brushed Chrome . . . . . . . . . . . . . .56-204-9-135
Custom Paint .................56-204-X-135
*Eastern Hemisphere sales only
**Previously known as Bright White
Note: All Custom Cover Plates are
painted using SHERWIN-WILLIAMS
Interior Latex Paint. Contact Johnson
Controls Customer Service with any
questions related to custom orders.
Sprinkler Wrench
Specify: W-Type 37 Sprinkler Wrench,
P/N 56-320-1-015
Pipe Guide Bracket
Pipe Guide Bracket accessory for
sprinkler installation adjacent to
framing member such as 2 x 4 within
wall structure, includes mounting
screws.
Specify: Pipe Guide Bracket,
P/ N 91- 52 0 -115