Tyco Rapidresponse LFII Series User manual

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Contacts
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RAPID RESPONSE Series LFII Residential Sprinklers
4.9 K-factor Pendent
Wet Pipe and Dry Pipe Systems
Page 1 of 6 APRIL 2013 TFP400
Worldwide
Contacts
www.tyco-fire.com
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
(TY2234) should be the rst choice.
The Series LFII Residential Sprinklers
are intended for use in the following
scenarios:
•
wet and dry pipe residential sprin-
kler 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
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 adjustment 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 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 res and to improve the
chance for occupants to escape or be
evacuated.
Dry Pipe System Application
The Series LFII Residential Pendent
and Recessed Pendent Sprinklers
offers a laboratory approved option for
designing dry pipe residential sprinkler
systems, whereas, most residential
sprinklers are laboratory approved for
wet systems only.
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.
NOTICE
The Series LFII Residential Pendent and
Recessed Pendent Sprinklers (TY2234)
described herein must be installed and
maintained in compliance with this
document and the applicable stan-
dards of the National Fire Protection
Association, in addition to the standards
of any authorities having jurisdiction.
Failure to do so may impair the perfor-
mance of these devices.
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 compo-
nents and cause the sprinkler to fail to
operate in a fire situation or cause it
to operate prematurely.
The owner is 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.
Sprinkler
Identification
Number (SIN)
TY2234

TFP400
Page 2 of 6
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 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
RAPID RESPONSE SERIES LFII RESIDENTIAL PENDENT SPRINKLER
(TY2234)
WRENCH RECESS
(END "A" USED
FOR TY2234)
FIGURE 3
W-T YPE 6
SPRINKLER WRENCH
RECESS
WRENCH
WITH SPRINKLER
ENGAGEMENT
IN TO ENSURE
WRENCHING AREA
PUSH WRENCH
FIGURE 4
W-TYPE 7 RECESSED
SPRINKLER WRENCH
Technical
Data
Approvals
UL Listed for use with wet pipe and
dry pipe systems
C-UL Listed for use only with wet pipe
systems
NSF Certied to NSF/ANSI 61
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
Natural Brass
Pure or Signal White
Chrome Plated
Physical Characteristics
Frame ....................Brass
Button ...................Copper
Sealing Assembly . . . . . . . . Beryllium
Nickel w/TEFLON
Bulb (3 mm) . . . . . . . . . . . . . . . . Glass
Compression Screw . . . . . . . . Bronze
Deector .................Bronze
Ejection Spring ......Stainless Steel

TFP400
Page 3 of 6
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 TYCO RAPID RESPONSE
Series LFII Residential Pendent
and Recessed Pendent Sprinklers
(TY2234) 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 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.
Refer to Technical Data Sheet TFP485
for the use of residential sprinklers in
residential dry pipe systems.
Ceiling Types
Smooth at 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 sprinkler ow rates are
given in Tables A and B as a func-
tion 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.
The number of “design sprinklers”
specied in NFPA 13D and 13R for wet
pipe systems is to be applied when
designing dry pipe systems.
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 as a function of temperature
rating 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.
The number of “design sprinklers”
specied in NFPA 13 for wet pipe
systems is to be applied when
designing dry pipe systems.
Dry Pipe System Water Delivery
When using the Series LFII Residential
Sprinklers (TY2234) in dry pipe sprin-
kler systems, the time for water
delivery must not exceed 15 seconds
for the most remote operating
sprinkler.
Obstruction to Water Distribution
Sprinklers are to be located in accor-
dance with the obstruction rules
of NFPA 13D, 13R, and 13 as appli-
cable 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
deector-to-ceiling distance of 1-1/4 to
4 inches.
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 or B) being hydraulically
calculated (e.g., maximum 12 feet for a
12 ft. x 12 ft. coverage area, or 20 feet
for a 20 ft. x 20 ft. coverage area).
Installation
The TYCO RAPID RESPONSE
Series LFII Residential Pendent
and Recessed Pendent Sprinklers
(TY2234) must be installed in accor-
dance with this section:
General Instructions
Do not install any bulb type sprin-
kler 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 diam-
eter of the air bubble is approximately
1/16 inch (1,6 mm).
A leak-tight 1/2 inch NPT sprinkler
joint should be obtained 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 sprin-
kler Inlet with consequent leakage or
impairment of the sprinkler.
Do not attempt to compensate
for insufcient adjustment in an
Escutcheon Plate by under- or over-
tightening the sprinkler. Re-adjust the
position of the sprinkler tting to suit.
Series LFII Residential 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 deector
parallel to the ceiling.
Step 2. With pipe thread sealant
applied to the pipe threads, hand-
tighten the sprinkler into the sprinkler
tting.
Step 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.
Step A. Install recessed pendent
sprinklers in the pendent position with
the deector parallel to the ceiling.
Step B. 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.
(Continued on Page 5)

TFP400
Page 4 of 6
Maximum
Coverage
Area (a)
Ft. x Ft.
(m x m)
DRY 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)
13
(49,2)
7.0
(0,48)
13
(49,2)
7.0
(0,48) Smooth
Ceilings
1-1/4 to
4 inches
Beamed
Ceilings per
NFPA 13D
or 13R
1-1/4 to 1-3/4
inches below
bottom of
beam.
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
(53,0)
8.2
(0,57)
14
(53,0)
8.2
(0,57)
16 x 16
(4,9 x 4,9)
15
(56,8)
9.4
(0,65)
15
(56,8)
9.4
(0,65)
18 x 18
(5,5 x 5,5)
18
(68,1)
13.5
(0,93)
18
(68,1)
13.5
(0,93)
20 x 20
(6,1 x 6,1)
21
(79,5)
18.4
(1,27)
21
(79,5)
18.4
(1,27)
(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. Refer to Hydraulic Design under the Design Criteria section.
(c) For NFPA 13 residential applications, the greater of 0.1 gpm/ft2over the design area of the ow in accordance with the criteria in
this table must be used.
TABLE B
DRY PIPE SYSTEM
SERIES LFII RESIDENTIAL PENDENT AND RECESSED PENDENT SPRINKLERS (TY2234)
NFPA 13D, 13R, AND 13 HYDRAULIC DESIGN CRITERIA
TABLE A
WET PIPE SYSTEM
SERIES LFII RESIDENTIAL PENDENT AND RECESSED PENDENT SPRINKLERS (TY2234)
NFPA 13D, 13R, AND 13 HYDRAULIC DESIGN CRITERIA
Max.
Coverage
Area (a)
Ft. x Ft.
(m x 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)
13
(49,2)
7.0
(0,48)
13
(49,2)
7.0
(0,48) Smooth
Ceilings
1-1/4 to
4 inches
Beamed
Ceilings per
NFPA 13D
or 13R
1-1/4 to 1-3/4
inches below
bottom of
beam.
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)
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)
(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. Refer to Hydraulic Design under the Design Criteria section.
(c) For NFPA 13 residential applications, the greater of 0.1 gpm/ft2over the design area of the ow in accordance with the criteria in
this table must be used.

TFP400
Page 5 of 6
Step C. Tighten the sprinkler into the
sprinkler 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.
Step D. 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.
Care and
Maintenance
The TYCO RAPID RESPONSE Series
LFII Residential Pendent and Recessed
Pendent Sprinklers (TY2234) must be
maintained and serviced in accordance
with this section:
Before closing a re protection system
main control valve for maintenance
work on the re protection system that
it controls, permission to shut down
the affected re 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 re situation.
The owner must assure that the
sprinklers are not used for hanging
any objects and that the sprinklers
are only cleaned by means of gently
dusting with a feather duster; other-
wise, non-operation in the event of
a re or inadvertent 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.
Modied 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.
Sprinklers 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.
(Ref. Installation Section.)
The owner is responsible 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 (e.g., 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.
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 (TY2234), K=4.9,
Residential Pendent Sprinkler,
(specify) temperature rating, (specify)
nish, P/N (specify).
155°F (68°C)
Natural Brass ..............P/N 51-201-1-155
Pure White (RAL 9010)* ......P/N 51-201-3-155
Signal White (RAL 9003) .....P/N 51-201-4-155
Chrome Plated .............P/N 51-201-9-155
175°F (79°C)
Natural Brass ..............P/N 51-201-1-175
Pure White (RAL 9010)* ......P/N 51-201-3-175
Signal White (RAL 9003) .....P/N 51-201-4-175
Chrome Plated .............P/N 51-201-9-175
*Eastern Hemisphere sales only.
Recessed Escutcheon
Specify: Style 20 Recessed
Escutcheon with (specify*) nish, 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.

TFP400
Page 6 of 6
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