Tyco LFII Series Instruction Manual

Page 1 of 4 MARCH 2022 TFP403
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_9-k-pen-sprinkler-wet
Series LFII Residential
4.9 K-factor Pendent Sprinkler
Wet Pipe Systems
General
Description
TYCO Series LFII Residential 4.9K
Pendent and Recessed Pendent Sprin-
klers (TY2236) are decorative, fast
response, frangible bulb sprinklers
designed for use in residential occu-
pancies such as homes, apartments,
dormitories, and hotels. When aesthet-
ics and optimized flow characteristics
are the major consideration, the Series
LFII Residential Sprinklers (TY2236)
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 ceilings when
used with one of the following:
• A two-piece Style 15 Recessed
Escutcheon with recessed adjust-
ment up to 5/8 in. (15,9 mm) from
the ush pendent position.
• A two-piece Style 20 Recessed
Escutcheon with recessed adjust-
ment up to 1/2 in. (12,7 mm) from
the ush pendent position.
The adjustment provided by either
Recessed 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.
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 Pendent
and Recessed Pendent Sprinklers
(TY2236) described herein must be
installed and maintained in compli-
ance with this document and the appli-
cable 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.
Sprinkler
Identification
Number (SIN)
TY2236
TY2236 is a replacement for the TY2234.

TFP403
Page 2 of 4
SURFACE
ESCUTCHEON
PLATE SEATING
1-5/8"
(41,3 mm)
-
2
Button
Temperature
rating is
indicated on
Deector.
Deector
Compression
Screw
Bulb
Sealing Assembly
-
6
*
-
4
5
-
3
-
*
*
6
4
5
1
3
2
Components:
Frame
1
-
1/2"
NPT
7/16" (11,1 mm)
MAKE-IN
NOMINAL
ESCUTCHEON
STYLE 15 or 20
RECESSED
WRENCH
(57,2 mm)
2-1/4"
FLATS
(73,0 mm)
2-7/8" DIA.
CROSS SECTION PENDENT RECESSED PENDENT
2-7/8" DIA.
(73,0 mm)
2-1/4" DIA.
(57,2 mm)
MOUNTING
PLATE
1/8"
(3,2 mm)
MOUNTING
SURFACE
FACE OF
SPRINKLER
FITTING
3/8±5/16"
(9,5±7,9 mm)
TY2236
CLOSURE
5/8" (15,9 mm)
FLUSH
1-9/16" (39,7 mm)
15/16" (23,8 mm)
2-7/8" DIA.
(73,0 mm)
2-1/4" DIA.
(57,2 mm)
MOUNTING
PLATE
1/8"
(3,2 mm)
MOUNTING
SURFACE
FACE OF
SPRINKLER
FITTING
5/16±1/4"
(7,9±6,4 mm)
TY2236
CLOSURE 1-9/16" (39,7 mm)
1-1/16" (27,0 mm)
1/2" (12,7 mm)
FLUSH
RECESS
WRENCH
WITH SPRINKLER
ENGAGEMENT
IN TO ENSURE
WRENCHING AREA
PUSH WRENCH
WRENCH RECESS
(END "A" USED
FOR TY2236)
FIGURE 1
SERIES LFII RESIDENTIAL
4.9K PENDENT AND RECESSED PENDENT SPRINKLERS (TY2236)
FIGURE 2
SERIES LFII RECESSED PENDENT SPRINKLER
ASSEMBLY WITH TWO-PIECE 5/8 INCH TOTAL
ADJUSTMENT STYLE 15 RECESSED ESCUTCHEON
FIGURE 3
SERIES LFII RECESSED PENDENT SPRINKLER
ASSEMBLY WITH TWO-PIECE 1/2 INCH TOTAL
ADJUSTMENT STYLE 20 RECESSED ESCUTCHEON
FIGURE 5
W-TYPE 7 RECESSED
SPRINKLER WRENCH
FIGURE 4
W-T YPE 6
SPRINKLER WRENCH

TFP403
Page 3 of 4
Technical
Data
Approvals
UL and C-UL Listed
Certified to all requirements of
NSF/ANSI 61
Note: Sprinklers with a polyester finish are
UL Listed as corrosion-resistant sprinklers.
See the Design Criteria section for details
on these approvals.
Maximum Working Pressure
175 psi (12,1 bar)
Discharge Coefficient
K=4.9 gpm/psi½(70,6 lpm/bar½)
Temperature Rating
155°F (68°C) or 175°F (79°C)
Finishes
Natural Brass, Pure White Polyester
Coated, Signal White Polyester Coated,
Jet Black Polyester Coated, or Chrome
Plated
Physical Characteristics
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Button . . . . . . . . . . . . . . . . . . . . . . . . . . . Copper
Sealing Assembly ..Beryllium Nickel w/TEFLON
Bulb (3 mm) . . . . . . . . . . . . . . . . . . . . . . . . Glass
Compression Screw . . . . . . . . . . . . . . . . .Bronze
Deflector . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
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
activate and flow water.
Design
Criteria
The TYCO Series LFII Residential 4.9K
Pendent and Recessed Pendent Sprin-
klers are UL and C-UL Listed for instal-
lation 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 Types
Per the UL Listing and the C-UL Listing,
wet pipe systems may be utilized.
Ceiling Types
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 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 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
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 applicable
for residential sprinklers as well as with
the obstruction criteria described within
the Technical Data Sheet TFP490.
Operational Sensitivity
Sprinklers are to be installed with a
deflector-to-ceiling distance of 1 1/4 in.
to 4 in.
Sprinkler Spacing
The minimum spacing between sprin-
klers is 8 ft (2,4 m). The maximum
spacing between sprinklers cannot
exceed the length of the coverage
area (Table A) being hydraulically calcu-
lated, for example, maximum 12 ft for a
12 ft x 12 ft coverage area, or 20 ft for
a 20 ft x 20 ft coverage area.
Maximum
Coverage
Area (1)
ft x ft
(m x m)
WET PIPE SYSTEM
Minimum Flow and Residual Pressure (2)(3)
Ordinary Temperature Rating
155°F (68°C) Intermediate Temperature 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)
13
(49,2)
7.0
(0,48)
13
(49,2)
7.0
(0,48) Smooth
Ceilings
1-1/4 in. to 4 in.
Beamed
Ceilings per
NFPA 13D
or 13R
1-1/4 in. to
1-3/4 in. below
bottom of
beam.
Recessed us-
ing either Style
15 or Style 20
Escutcheon or
non-recessed
per NFPA 13D,
13R, or 13
8
(2,4)
14 x 14
(4,3 x 4,3)
13
(49,2)
7.0
(0,48)
13
(49,2)
7.0
(0,48)
16 x 16
(4,9 x 4,9)
13
(49,2)
7.0
(0,48)
13
(49,2)
7.0
(0,48)
18 x 18
(5,5 x 5,5)
17
(64,3)
12.0
(0,83)
17
(64,3)
12.0
(0,83)
20 x 20
(6,1 x 6,1)
20
(75,7)
16.7
(1,15)
20
(75,7)
16.7
(1,15)
Notes:
1. 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.
2. 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.
3. 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.
TABLE A
WET PIPE SYSTEM
SERIES LFII RESIDENTIAL 4.9K PENDENT AND RECESSED PENDENT SPRINKLERS (TY2236)
NFPA 13D, 13R, AND 13 HYDRAULIC DESIGN CRITERIA

TFP403
Page 4 of 4
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.
Installation
TYCO Series LFII Residential 4.9K
Pendent and Recessed Pendent Sprin-
klers 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 apply-
ing 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 sprin-
kler Inlet with consequent leakage or
impairment of the sprinkler.
Do not attempt to compensate for
insufficient adjustment in an Escutch-
eon Plate by under- or over- tightening
the sprinkler. Re-adjust the position of
the sprinkler fitting to suit.
Pendent Sprinklers
The Series LFII Residential Pendent
Sprinklers must be installed in accor-
dance with the following instructions.
Step 1. Install pendent sprinklers in the
pendent position with the deflector par-
allel 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, as shown in Figure
4. With reference to Figure 1, apply
the W-Type 6 Sprinkler Wrench to the
wrench flats.
Recessed Pendent Sprinklers
The Series LFII Residential Recessed
Pendent Sprinklers must be installed
in accordance with the following
instructions.
Step A. Install the recessed pendent
sprinklers in the pendent position with
the deflector parallel to the ceiling.
Step B. After installing either the
Style 15 or the Style 20 Mounting Plate
over the sprinkler threads, and with
pipe thread sealant 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, as shown
in Figure 5. With reference to Figure 1,
apply the W-Type 7 Recessed Sprinkler
Wrench to the sprinkler wrench flats.
Step D. After the ceiling has been
installed, or the finish coat has been
applied, slide on either the Style 15
Closure or the Style 20 Closure over the
Series LFII Residential Sprinkler and
push the Closure over the Mounting
Plate until its flange comes in contact
with the ceiling.
Care and
Maintenance
TYCO Series LFII Residential 4.9K
Pendent and Recessed Pendent Sprin-
klers 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, permission to shut down the
affected fire protection system must be
obtained from the proper authorities
and notify all personnel who may be
affected by this action.
Absence of the outer piece of an
escutcheon, which is used to cover
a clearance hole, can delay 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.
The owner is responsible for the inspec-
tion, 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 ASSO-
CIATION, such as NFPA 25, in addi-
tion to the standards of any authorities
having jurisdiction. Contact the install-
ing 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 Assemblies
Specify: Series LFII 4.9K Residential
Pendent Sprinkler (TY2236), (specify
temperature rating), with (specify) finish,
P/N (specify):
155°F (68°C)
Natural Brass ................. 51-212-1-155
Pure White (RAL 9010)
Polyester1, 2 ..................51-212-3-155
Signal White (RAL 9003)
Polyester1....................51-212-4-155
Jet Black (RAL 9005)
Polyester1....................51-212-5-155
Chrome Plated ................51-212-9-155
175°F (79°C )
Natural Brass ..................51-212-1-175
Pure White (RAL 9010)
Polyester1, 2 .................. 51-212-3-175
Signal White (RAL 9003)
Polyester1.................... 51-212-4-175
Jet Black (RAL 9005)
Polyester1.................... 51-212-5-175
Chrome Plated . . . . . . . . . . . . . . . . 51-212-9-175
1. UL Listed as corrosion-resistant.
2. Eastern Hemisphere sales only.
Recessed Escutcheon
Specify: Style 15 Escutcheon with
(specify*) finish, P/N (specify*) or
Style 20 Recessed Escutcheon with
(specify*) finish, P/N (specify*)
* Refer to Technical Data Sheet TFP770.
Sprinkler Wrenches
Specify: W-Type 6 Sprinkler Wrench,
P/N 56-000-6-387
Specify: W-Type 7 Sprinkler Wrench,
P/N 56-850-4-001