Tyco Rapidresponse LFII Series User manual

Series LFII Residential Sprinklers
4.9 K-Factor Pendent and Recessed Pendent
Wet Pipe and Dry Pipe Systems
Page 1 of 8 AUGUST 2011 TFP400
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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 ow charac-
teristics are the major consideration,
the Series LFII Residential Sprinklers
should be the rst choice.
The Series LFII Residential Sprinklers
are intended for use in the following
scenarios:
• wet and dry pipe residential sprinkler
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
Historically residential sprinklers,
based on their Listing, have been
limited to wet pipe sprinkler systems
to assure speed of water delivery for a
given prescribed design area (number
of design sprinklers).
The Listing for the Series LFII
Residential Pendent and Recessed
Pendent Sprinklers now offers
the laboratory approved option of
designing dry pipe residential sprinkler
systems.
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 specied for wet pipe sprinkler
systems, as is accustomed for density/
area sprinkler systems designed per
NFPA 13.
Consequently, the Series LFII
Residential Sprinklers offer the features
of non-water lled 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 lled pipe
will permit options for areas sensitive
to freezing.
These Sprinklers have a 4.9 (70,6)
K-Factor that provides the required
residential ow rates at reduced
pressures, enabling smaller pipe sizes
and water supply requirements.
The recessed version of the Series
LFII Residential Sprinklers is intended
for use in areas with nished ceilings.
It employs a two-piece Style 20
Recessed Escutcheon.
The Recessed Escutcheon provides
1/4 inch (6,4 mm) of recessed adjust-
ment or up to 1/2 inch (12,7 mm) of
total adjustment from the ush ceiling
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 Pendent
and Recessed Pendent Sprinklers have
been designed with heat sensitivity
and water distribution characteristics
proven to help in the control of residen-
tial res and to improve the chance for
occupants to escape or be evacuated.
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 components
and cause the sprinkler to fail to
operate in a fire situation or cause it
to operate prematurely.
NOTICE
The Series LFII Residential Pendent
and Recessed Pendent Sprinklers
(TY2234) described herein must be
installed and maintained in compli-
ance with this document and the appli-
cable standards of the National Fire
Protection Association, in addition to
the standards of any authorities having
jurisdiction. Failure to do so may impair
the performance of these devices.
Owners are 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.

TFP400
Page 2 of 8
Maximum
Coverage
Area (a)
Ft. x Ft.
(m x m)
Maximum
Spacing
Ft.
(m)
WET PIPE SYSTEM
Minimum Flow and Residual Pressure (b)
For Horizontal
Ceiling (c, d, e)
(Maximum 2-Inch Rise
for 12-Inch Run)
For Sloped Ceiling (c, d, e)
(Greater than 2-Inch Rise up to
Maximum 4-Inch Rise for 12-Inch Run)
For Sloped Ceiling (c, d, e)
(Greater than 4-Inch Rise up to
Maximum 8-Inch Rise for 12-Inch Run)
155°F (68°C) or
175°F (79°C) 155°F (68°C) 175°F (79°C) 155°F (68°C) 175°F (79°C)
12 x 12
(3,7 x 3,7)
12
(3,7)
13 GPM (49,2 LPM)
7.0 psi (0,48 bar)
13 GPM (49,2 LPM)
7.0 psi (0,48 bar)
17 GPM (64,3 LPM)
12.0 psi (0,83 bar)
13 GPM (49,2 LPM)
7.0 psi (0,48 bar)
17 GPM (64,3 LPM)
12.0 psi (0,83 bar)
14 x 14
(4,3 x 4,3)
14
(4,3)
13 GPM (49,2 LPM)
7.0 psi (0,48 bar)
13 GPM (49,2 LPM)
7.0 psi (0,48 bar)
17 GPM (64,3 LPM)
12.0 psi (0,83 bar)
13 GPM (49,2 LPM)
7.0 psi (0,48 bar)
17 GPM (64,3 LPM)
12.0 psi (0,83 bar)
16 x 16
(4,9 x 4,9)
16
(4,9)
13 GPM (49,2 LPM)
7.0 psi (0,48 bar)
13 GPM (49,2 LPM)
7.0 psi (0,48 bar)
17 GPM (64,3 LPM)
12.0 psi (0,83 bar)
13 GPM (49,2 LPM)
7.0 psi (0,48 bar)
17 GPM (64,3 LPM)
12.0 psi (0,83 bar)
18 x 18
(5,5 x 5,5)
18
(5,5)
17 GPM (64,3 LPM)
12.0 psi (0,83 bar)
17 GPM (64,3 LPM)
12.0 psi (0,83 bar)
17 GPM (64,3 LPM)
12.0 psi (0,83 bar)
17 GPM (64,3 LPM)
12.0 psi (0,83 bar)
17 GPM (64,3 LPM)
12.0 psi (0,83 bar)
20 x 20
(6,1 x 6,1)
20
(6,1)
20 GPM (75,7 LPM)
16.7 psi (1,15 bar)
20 GPM (75,7 LPM)
16.7 psi (1,15 bar)
20 GPM (75,7 LPM)
16.7 psi (1,15 bar)
21 GPM (79,5 LPM)
18.4 psi (1,27 bar)
22 GPM (83,3 LPM)
20.2 psi (1,39 bar)
(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) The Minimum Flow requirement is based on minimum ow in GPM (LPM) from each sprinkler. The associated residual pressures are calculated
using the nominal K-Factor. Refer to Hydraulic Design under the Design Criteria section.
(c) For NFPA 13D 2010 applications, Horizontal Ceiling criteria shall be used for certain sloped ceiling congurations up to 8:12 pitch.
Refer to TIA 1028R for allowed sloped ceiling limitations when using horizontal ceiling criteria.
(d) For NFPA 13R applications, Horizontal Ceiling criteria may be used for sloped ceiling congurations up to 8:12 pitch when acceptable to
the Local Authority Having Jurisdiction.
(e) For NFPA 13 residential applications, the greater of 0.1 GPM/Ft.2over the design area or the ow in accordance with the criteria in
Table A must be used.
TABLE A
SERIES LFII RESIDENTIAL PENDENT AND RECESSED PENDENT SPRINKLERS (TY2234)
NFPA 13, 13D AND 13R HYDRAULIC DESIGN CRITERIA
WET PIPE SYSTEMS
Maximum
Coverage Area (a)
Ft. x Ft. (m x m)
Maximum
Spacing
Ft. (m)
DRY PIPE SYSTEM
Minimum Flow and Residual Pressure (b)
For Horizontal Ceiling (c)
(Maximum 2-Inch Rise for 12-Inch Run)
155°F (68°C) 175°F (79°C)
12 x 12
(3,7 x 3,7)
12
(3,7)
13 GPM (49,2 LPM)
7.0 psi (0,48 bar)
13 GPM (49,2 LPM)
7.0 psi (0,48 bar)
14 x 14
(4,3 x 4,3)
14
(4,3)
14 GPM (53,0 LPM)
8.2 psi (0,57 bar)
14 GPM (53,0 LPM)
8.2 psi (0,57 bar)
16 x 16
(4,9 x 4,9)
16
(4,9)
15 GPM (56,8 LPM)
9.4 psi (0,65 bar)
15 GPM (56,8 LPM)
9.4 psi (0,65 bar)
18 x 18
(5,5 x 5,5)
18
(5,5)
18 GPM (68,1 LPM)
13.5 psi (0,93 bar)
18 GPM (68,1 LPM)
13.5 psi (0,93 bar)
20 x 20
(6,1 x 6,1)
20
(6,1)
21 GPM (79,5 LPM)
18.4 psi (1,27 bar)
21 GPM (79,5 LPM)
18.4 psi (1,27 bar)
(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) The Minimum Flow requirement is based on minimum ow in GPM (LPM) from each sprinkler. The associated residual
pressures are calculated using the nominal K-Factor. Refer to Hydraulic Design under the Design Criteria section.
(c) For NFPA 13D 2010 applications, Horizontal Ceiling criteria shall be used for certain sloped ceiling congurations up to 8:12 pitch.
Refer to TIA 1028R for allowed sloped ceiling limitations when using horizontal ceiling criteria.
TABLE B
SERIES LFII RESIDENTIAL PENDENT AND RECESSED PENDENT SPRINKLERS (TY2234)
NFPA 13D HYDRAULIC DESIGN CRITERIA
DRY PIPE SYSTEMS

TFP400
Page 3 of 8
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:
Frame1 -
1/2"
NPT
7/16" (11,1 mm)
MAKE-IN
NOMINAL
ESCUTCHEON
STYLE 20
RECESSED
WRENCH
(57,2 mm)
2-1/4"
FLATS
(73,0 mm)
2-7/8" DIA.
CROSS SECTION PENDENT RECESSED PENDENT
FIGURE 1
RAPID RESPONSE SERIES LFII RESIDENTIAL
PENDENT AND RECESSED PENDENT SPRINKLERS (TY2234)
TY2234
2-7/8" DIA.
(73,0 mm)
(57,2 mm)
2-1/4" DIA.
MOUNTING
SPRINKLER
CLOSURE
SURFACE
FITTING
FACE OF
(11,1±3,2 mm)
7/16±1/8"
MOUNTING
PLATE
1-3/8" (34,9 mm)
1-1/8" (28,6 mm)
(3,2 mm)
1/8"
1/2" (12,7 mm)
1/4" (6,4 mm)
FIGURE 2
STYLE 20 RECESSED ESCUTCHEON FOR USE WITH THE
SERIES LFII RESIDENTIAL PENDENT SPRINKLERS (TY2234)
WRENCH RECESS
(END "A" USED
FOR TY2234)
FIGURE 3
W-T YPE 6
SPRINKLER WRENCH
FIGURE 4
W-TYPE 7 RECESSED
SPRINKLER WRENCH
RECESS
WRENCH
WITH SPRINKLER
ENGAGEMENT
IN TO ENSURE
WRENCHING AREA
PUSH WRENCH

TFP400
Page 4 of 8
NOTICE
The number of “design sprinklers”
specified in NFPA 13D and 13R for wet
pipe systems is to be applied when
designing dry pipe systems. There is
no need to increase the design area, as
is the case for density/area systems, in
accordance with U.S. Patent 7,712,543.
Refer to technical data sheet TFP485.
Model/Sprinkler
Identification
Number (SIN)
TY2234
Technical
Data
Approvals
• UL Listed for use with wet pipe and
dry pipe systems
• C-UL Listed for use only with wet
pipe systems
• NYC Approved under MEA 44-03-E
For details on these approvals, refer
to the Design Criteria section.
Maximum Working Pressure
175 psi (12,1 bar)
Discharge Coefficient
K=4.9 GPM/psi1/2 (70,6 LPM/bar1/2)
Temperature Rating
155°F (68°C) or 175°F (79°C)
Finishes
• White Polyester
• Chrome Plated
• Natural Brass
Physical Characteristics
Frame ....................Brass
Button ...................Bronze
Sealing Assembly . . . . . . . . Beryllium
Nickel w/Teon*
Bulb (3 mm) . . . . . . . . . . . . . . . . Glass
Compression Screw . . . . . . . . Bronze
Deector .................Bronze
Ejection Spring ......Stainless Steel
Operation
The glass Bulb contains a uid that
expands when exposed to heat. When
the rated temperature is reached, the
uid expands sufciently to shatter the
glass Bulb, allowing the sprinkler to
activate and ow water.
Design
Criteria
The RAPID RESPONSE Series LFII
Residential Pendent and Recessed
Pendent Sprinklers (TY2234) are UL
and C-UL Listed for installation in
accordance with the following criteria.
*Registered trademark of Dupont
Note: When conditions exist that are
outside the scope of the provided
criteria, refer to the Residential
Sprinkler Design Guide TFP490 for
the manufacturer’s recommendations
that may be acceptable to the local
authority having jurisdiction.
System Types
Per the UL Listing, wet pipe and dry
pipe systems may be utilized. Per the
C-UL Listing, only wet pipe systems
may be utilized.
• For dry systems corrosion-resistant
or internally galvanized pipe shall
be utilized with the sprinklers de-
scribed in this data sheet.
• For dry systems not using CPVC,
pendent sprinklers shall be installed
on return bends, where the sprin-
klers, return bends, and branch
line piping (that is, potential areas
for trapped water) are in areas at or
above 40°F (4°C).
Refer to technical data sheet TFP485
about the use of Residential Sprinklers
in residential dry pipe systems.
NOTICE
When corrosion-resistant or inter-
nally galvanized pipe and fittings with
a potable water supply is utilized,
return bends need not be installed.
However, any portion of the piping that
has the potential to trap water must
be maintained at or above 40°F (4°C)
unless provision to drain such areas is
provided and maintained dry.
Water Delivery
When using the Series LFII Residential
Pendent and Recessed Pendent
Sprinklers (TY2234) in dry pipe
sprinkler systems, the requirements
for “Dry System Water Delivery” per
Section 8.3.4.3 of the 2010 edition
of NFPA 13D apply. For a residential
hazard, in no case shall the time of
water delivery exceed 15 seconds for
the most remote operating sprinkler.
Hydraulic Design
(NFPA 13D and 13R)
The minimum required sprinkler
ow rate for systems designed to
NFPA 13D or NFPA 13R are given
in Tables A and B as a function
of temperature rating and the
maximum allowable coverage areas.
The sprinkler ow rate is the minimum
required discharge from each of the
total number of “design sprinklers” as
specied in NFPA 13D or NFPA 13R.
TY2234
1-3/4" (44,5 mm) MAX.
1-1/4" (31,8 mm) MIN.
ONE-HALF BEAM
WIDTH PLUS
MAXIMUM
2" (50,8 mm)
TY2234
1-3/4" (44,5 mm) MAX.
1-1/4" (31,8 mm) MIN.
A
B
FIGURE 5
SPRINKLER POSITIONING
UNDER PRIMARY BEAMS
WET PIPE SYSTEMS ONLY
(Refer to the “Beam Ceiling
Design Criteria” section.)

TFP400
Page 5 of 8
A AA
PRIMARY BEAM SPANS UP TO 20'-0" (6,1 m)
PRIMARY BEAM SPANS GREATER THAN 20'-0" (6,1 m)
COMBINATIONS OF PRIMARY AND SECONDARY BEAMS
B
B
C
C
FOR SECONDARY BEAMS
THAT ARE TO BE EQUAL IN
DEPTH TO PRIMARY BEAMS
AND THAT MUST BE IN PLACE
SO THAT PRIMARY BEAM
POCKETS DO NOT EXCEED
20'-0" (6,1 m)
SECONDARY BEAMS HAVING
DEPTHS GREATER THAN 25%
OF PRIMARY BEAMS
B = 20'-0" (6,1 m) MAXIMUM
C = 3'-4" (1,0 m) MINIMUM FOR
or
A = 3'-4" to 6'-0" (1,0 to 1,8 m)
FOR PRIMARY BEAMS HAV-
DEPTH
ING A 14" (356 mm) MAXIMUM
ONDARY BEAMS HAVING
DEPTHS UP TO 25% OF
PRIMARY BEAMS
C = ANY DISTANCE FOR SEC-
A = 3'-4" to 6'-0" (1,0 to 1,8 m)
FOR PRIMARY BEAMS HAV-
DEPTH
ING A 14" (356 mm) MAXIMUM
A = 3'-4" to 6'-0" (1,0 to 1,8 m)
FOR PRIMARY BEAMS HAV-
DEPTH
ING A 14" (356 mm) MAXIMUM
MAXIMUM
14" (356 mm)
20'-0" (6,1 m)
MAXIMUM
REFER TO
FOR SPANS
FIGURE 6B
20'-0" (6,1 m)
EXCEEDING
PRIMARY
BEAM
DISTANCES ARE
COMPARTMENT
TO CENTERLINES
OF BEAMS
WALL FACES AND
MEASURED TO
SECONDARY
BEAM
ALL FIGURES:
COMPARTMENT
WALLS
PRIMARY
BEAM
COMPARTMENT
WALLS
A AA
A AA
SECONDARY
BEAM
PRIMARY
BEAM
COMPARTMENT
WALLS
FIGURE 6A
FIGURE 6B
FIGURE 6C
*
*
FIGURE 6
BEAM ARRANGEMENTS
WET PIPE SYSTEMS ONLY
(Refer to the “Beam Ceiling Design Criteria” section.)

TFP400
Page 6 of 8
SOFFIT
FACE OF
COMPARTMENT
WALLS
SECONDARY
BEAM
PRIMARY
BEAM
IN FIGURES 6A, 6B & 6C,
EXCEPT MEASUREMENTS
ARE TAKEN FROM FACES
OF SOFFITS INSTEAD OF
FROM COMPARTMENT
WALL SURFACES
USE DISTANCES SHOWN
*
*
*
FIGURE 7
BEAM AND SOFFIT ARRANGEMENTS
WET PIPE SYSTEMS ONLY
(Refer to the “Beam Ceiling Design Criteria” section.)
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 discharge from each of the
four sprinklers is to be the greater of
the following:
• The ow rates given in Tables A or B
for NFPA 13D and 13R as a function
of temperature rating and the maxi-
mum allowable coverage area.
• A minimum discharge of 0.1 GPM/
sq. ft. over the “design area” com-
prised of the four most hydraulical-
ly demanding sprinklers for actual
coverage areas protected by the
four sprinklers.
NOTICE
The number of “design sprin-
klers” specified in NFPA 13 for wet
pipe systems is to be applied when
designing dry pipe systems. There is
no need to increase the design area, as
is the case for density/area systems, in
accordance with U.S. Patent 7,712,543.
Refer to technical data sheet TFP485.
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 TYCO technical data sheet
TFP490.
Operational Sensitivity
For Horizontal Ceilings (maximum
2-inch rise for 12-inch run), the sprin-
klers are to be installed with a deector-
to-ceiling distance of 1-3/8 to 4 inches
or in the recessed position using only
the Style 20 Recessed Escutcheon as
shown in Figure 2.
NOTICE
The “Beam Ceiling Design Criteria”
section permits deflector-to-ceiling
distances up to 15-3/4 inches.
To help avoid obstructions to water
distribution, a maximum 12-inch
deflector-to-ceiling distance is
permitted for NFPA 13D and NFPA
13R applications where the sprinklers
are located in closets.
For Sloped Ceilings (greater than
2-inch rise up to 8-inch rise for 12-
inch run), the sprinklers are to be
installed with a deector-to-ceiling
distance of 1-3/8 to 4 inches or in the
recessed position using only the Style
20 Recessed Escutcheon as shown in
Figure 2.
Sprinkler Spacing
The minimum spacing between sprin-
klers is 8 feet (2,4 m). The maximum
spacing between sprinklers cannot
exceed the length of the coverage area
(Table A) being hydraulically calculated;
maximum 12 feet for a 12 ft. x 12 ft.
coverage area, or 20 feet for a 20 ft. x
20 ft. coverage area.
Beam Ceiling
Design Criteria
The RAPID RESPONSE Series LFII
Residential Pendent and Recessed
Pendent Sprinklers (TY2234) are UL
and C-UL Listed for installation in wet
pipe systems only for residential occu-
pancies with horizontal ceilings (that is,
slopes up to a 2-inch rise over a 12-inch
run) with beams when installed in
accordance with the following criteria.
General Information
The basic concept of this protection
scheme is to locate the sprinklers
on the underside of the beams, refer
Figure 5, (not in the beam pockets); to
identify the main beams that princi-
pally run in one direction as “primary
beams”; and, to identify the beams
that run principally perpendicular to
the main beams, as may be present
(or in some cases may be necessary
for proper sprinkler protection), as
“secondary beams”.
Primary and Secondary Beam
Types
Solid surface, solid or hollow core,
combustible or non-combustible.
Primary and Secondary Beam
Positioning
Directly attached to the underside of
a combustible or non-combustible
smooth ceiling at any elevation.

TFP400
Page 7 of 8
Primary Beam Cross-Section
Maximum depth of 14 inches and the
maximum width is unlimited. The cross-
sectional shape of the primary beam
may be rectangular to circular.
Secondary Beam Cross-Section
Maximum depth to be no greater than
the primary beam and the maximum
width is unlimited. The cross-sectional
shape of the secondary beam may be
rectangular to circular.
Primary Beam Spacing
The primary beams (Figure 6A) are to
be 3 ft. - 4 in. to 6 ft. from the compart-
ment wall to center of the nearest beam
and from center to center between
beams.
Secondary Beam Spacing
The secondary beams principally run
perpendicular to the primary beams.
Secondary beams of a depth equal to
the primary beam must be placed so
that the beam pockets created by the
primary beams do not exceed 20 feet
in length (Figure 6B).
NOTICE
When the beam pockets created by
the primary beams exceed 20 feet in
length, the installation will require the
use of secondary beams as described
above. Otherwise, secondary beams
need not be present.
Secondary beams of a cross-sectional
depth greater than one-quarter the
depth of the primary beams are to be a
minimum of 3 ft. - 4 inches from the
compartment wall to center of the
nearest beam and from center to center
between beams (Figure 6C).
Secondary beams of a cross-sectional
depth no greater than one-quarter the
depth of the primary beams may be
placed at any compartment wall to
center of the nearest beam distance
and from any center to center distance
between beams (Figure 6C).
Lintels
Lintels over doorways exiting
the compartment must be present.
The minimum height for the lintels is
8 inches or no less than the depth of the
Primary Beams, whichever is greater.
Sprinkler Types
Series LFII Pendent and Recessed
Pendent Residential Sprinklers
(TY2234), 155°F (68°C) and 175°F
(79°C).
Sprinkler Coverage Area and Hy-
draulic Design
The sprinkler coverage areas
and hydraulic design criteria
as presented in the Table A for
“Horizontal Ceilings” are to be applied.
Sprinkler Position
The deector to bottom of primary
beams for the Series LFII Pendent and
Recessed Pendent Sprinklers (TY2234)
is to be 1-1/4 to 1-3/4 inches (Figure
5A). The vertical center-line of the
Series LFII Pendent Sprinklers is to be
no greater than half the primary beam
cross-sectional width plus 2 inches
from the centerline of the primary beam
(Figure 5B).
NOTICE
Core drilling of beams to allow the
installation of sprinkler drops requires
consulting with a structural engineer.
Where core drilling is not permitted,
the previously stated sprinkler position
criteria for the Series LFII Residential
Pendent and Recessed Pendent
Sprinklers (TY2234) allows placement
of the sprinkler drop adjacent to the
primary beam.
Beam and Soffit Arrangements
A soft is permitted to be placed around
the perimeter of a compartment with
the beam arrangement within the
softed area (Figure 7).
The cross-section of the soft may be
any size as long as it does not create
an obstruction to water distribution
per the obstruction rules of NFPA 13 for
residential sprinklers.
When softs are present, the previ-
ously provided 3 ft.-4 inches to 6 ft.
“compartment wall to adjacent beam”
distance for the primary and secondary
beams is to be measured from
the face of the soft as opposed to
the compartment wall.
Note: Although the distance to the
beams is measured from the face of
the soffit, the sprinkler coverage area
is to be measured from the compart-
ment wall.
Installation
The RAPID RESPONSE Series LFII
Residential Pendent and Recessed
Pendent Sprinklers (TY2234) must be
installed in accordance with the
following instructions.
NOTICE
Do not install any bulb type sprinkler if
the bulb is cracked or there is a loss of
liquid from the bulb. With the sprinkler
held horizontally, a small air bubble
should be present. The diameter of the
air bubble is approximately 1/16 inch
(1,6 mm).
Obtain a leak-tight 1/2 inch NPT
sprinkler joint by applying a minimum-
to-maximum torque of 7 to 14 ft. lbs.
(9,5 to 19,0 Nm). 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 an
Escutcheon Plate by under- or over-
tightening the Sprinkler. Re-adjust the
position of the sprinkler fitting to suit.
Series LFII Residential Pendent
Sprinklers
The Series LFII Residential Pendent
Sprinklers must be installed in accor-
dance with the following instructions.
1. Install pendent sprinklers in the
pendent position with the deector
parallel to the ceiling.
2. With pipe-thread sealant applied to
the pipe threads, hand-tighten the
sprinkler into the sprinkler tting.
3. Tighten the sprinkler into the
sprinkler tting using only the
W-Type 6 Sprinkler Wrench (Figure
3). With reference to Figure 1, apply
the W-Type 6 Sprinkler Wrench to
the wrench ats.
Series LFII Residential Recessed
Pendent Sprinklers
The Series LFII Residential Recessed
Pendent Sprinklers must be installed
in accordance with the following
instructions.
1. Install recessed pendent sprinklers
in the pendent position with the
deector parallel to the ceiling.
2. After installing 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 tting.
3. Tighten the sprinkler into the sprin-
kler tting using only the W-Type 7
Recessed Sprinkler Wrench (Figure
4). With reference to Figure 1,
apply the W-Type 7 Recessed
Sprinkler Wrench to the sprinkler
wrench ats.
4. After the ceiling has been installed
or the nish coat has been applied,
slide on the Style 20 Closure over
the Series LFII Residential Sprinkler
and push the Closure over the
Mounting Plate until its ange
comes in contact with the ceiling.

Copyright © 2006-2011 Tyco Fire Suppression & Building Products. All rights reserved.
TFP400
Page 8 of 8
Care and
Maintenance
The RAPID RESPONSE Series LFII
Residential Pendent and Recessed
Pendent Sprinklers (TY2234) must be
maintained and serviced in accordance
with the following instructions.
NOTICE
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.
Absence of the outer piece of an
escutcheon, which is used to cover
a clearance hole, can delay sprinkler
operation in a fire situation.
Owners must assure that the sprin-
klers are not used for hanging of 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.
Exercise care to avoid damage to
sprinklers before, during, and after
installation. Never paint, plate, coat,
or otherwise alter automatic sprinklers
after they leave the factory.
Replace sprinklers that:
• were modied or over-heated.
• were damaged by dropping, striking,
wrench twisting, wrench slippage, or
the like.
• are leaking or exhibiting visible signs
of corrosion.
• were exposed to corrosive
products of combustion but have
not operated, if you cannot easily
remove combustion by-products
with a cloth.
• have a cracked bulb or have lost
liquid from the bulb. Refer to the
Installation section in this data sheet.
Initial and frequent visual inspections of
random samples are recommended for
corrosion-resistant sprinklers to verify
the integrity of the corrosion-resistant
material of construction. Thereafter,
annual inspections per NFPA 25 should
sufce.
Inspections of corrosion-resis-
tant sprinklers are recommended at
close range, instead of from the oor
level per NFPA. Inspection at close
range can better determine the exact
sprinkler condition and the long-term
integrity of the corrosion-resistant
material, which can be affected by the
corrosive conditions present.
Responsibility lies with the owner for
the inspection, testing, and mainte-
nance of their re protection system
and devices in compliance with this
document, as well as with the appli-
cable standards of the National Fire
Protection Association (that is, 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
recommended to be inspected,
tested, and maintained by a qualied
Inspection Service in accordance with
local requirements and/or national
codes.
Limited
Warranty
Products manufactured by Tyco Fire
Suppression & Building Products
(TFSBP) are warranted solely to the
original Buyer for ten (10) years against
defects in material and workmanship
when paid for and properly installed
and maintained under normal use
and service. This warranty will expire
ten (10) years from date of shipment
by TFSBP. No warranty is given for
products or components manufac-
tured by companies not afliated by
ownership with TFSBP or for products
and components which have been
subject to misuse, improper instal-
lation, corrosion, or which have not
been installed, maintained, modied
or repaired in accordance with appli-
cable Standards of the National Fire
Protection Association, and/or the
standards of any other Authorities
Having Jurisdiction. Materials found by
TFSBP to be defective shall be either
repaired or replaced, at TFSBP’s sole
option. TFSBP neither assumes, nor
authorizes any person to assume for
it, any other obligation in connection
with the sale of products or parts of
products. TFSBP shall not be respon-
sible for sprinkler system design errors
or inaccurate or incomplete infor-
mation supplied by Buyer or Buyer’s
representatives.
In no event shall TFSBP be liable, in
contract, tort, strict liability or under
any other legal theory, for incidental,
indirect, special or consequential
damages, including but not limited to
labor charges, regardless of whether
TFSBP was informed about the possi-
bility of such damages, and in no
event shall TFSBP’s liability exceed an
amount equal to the sales price.
The foregoing warranty is made in
lieu of any and all other warranties,
express or implied, including warran-
ties of merchantability and tness for a
particular purpose.
This limited warranty sets forth the
exclusive remedy for claims based
on failure of or defect in products,
materials or components, whether the
claim is made in contract, tort, strict
liability or any other legal theory.
This warranty will apply to the full
extent permitted by law. The invalidity,
in whole or part, of any portion of this
warranty will not affect the remainder.
Ordering
Procedure
Contact your local distributor for
availability. When placing an order,
indicate the full product name and Part
Number (P/N).
Sprinkler Assembly
Specify Series LFII Residential Pendent
and Recessed Pendent Sprinkler
(TY2234), K=4.9, with (temperature
rating), (nish), and P/N (below).
155°F (68°C) or
Chrome Plated . . . . . . . . . . . . P/N 51-201-9-155
155°F (68°C)
White Polyester . . . . . . . . . . . . P/N 51-201-4-155
155°F (68°C)
White
(RAL9010)*. . . . . . . . . . . . . . . . P/N 51-201-3-155
155°F (68°C)
Natural Brass. . . . . . . . . . . . . . P/N 51-201-1-155
175°F (79°C) or
Chrome Plated . . . . . . . . . . . . P/N 51-201-9-175
175°F ( 79°C)
White Polyester . . . . . . . . . . . . P/N 51-201-4-175
175°F ( 79°C)
White
(RAL9010)*. . . . . . . . . . . . . . . . P/N 51-201-3-175
175°F ( 79°C)
Natural Brass. . . . . . . . . . . . . . P/N 51-201-1-175
*Eastern Hemisphere sales only.
Recessed Escutcheon
Specify Style 20 Recessed Escutcheon
with nish and P/N. 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.