Rapid Response LFII Series User manual

General
Description
The Series LFII (TY3334) Residential
Horizontal Sidewall Sprinklers are
decorative, fast response, frangible
bulb sprinklers designed for use in
residential occupancies such as
homes, apartments, dormitories, and
hotels. When enhanced flow charac-
teristics for residential portions of any
occupancy per NFPA 13 is the major
consideration, the Series LFII
(TY3334) should be the first choice.
When higher flow demands are re-
quiredforresidentialsprinklersusedin
an NFPA 13 design, the large 5.6 K-
factor of the Series LFII (TY3334) is an
attractive choice. Although mostly in-
tended where residential sprinklers
are to be used in an NFPA 13 design,
the Series LFII (TY3334) can also be
used in wet pipe residential sprinkler
systems for one- and two-family dwell-
ingsandmobilehomesperNFPA13D,
and wet pipe residential sprinkler sys-
tems for residential occupancies up to
and including four stories in height per
NFPA 13R.
The recessed version of the Series
LFII (TY3334) is intended for use in
areas with finished walls. It employs a
two-pieceStyle20 RecessedEscutch-
eon. The Recessed Escutcheon pro-
vides 1/4 inch (6,4 mm) of recessed
adjustment or up to 1/2 inch (12,7 mm)
of total adjustment from the flush
mounting surface position.The adjust-
ment provided by the Recessed Es-
cutcheon reduces the accuracy to
whichthe pipenipplestothe sprinklers
must be cut.
The Series LFII (TY3334) has been
designed with heat sensitivity and
water distribution characteristics
proventohelpin thecontrolofresiden-
tial fires and to improve the chance for
occupants to escape or be evacuated.
WARNINGS
The Series LFII (TY3334) Residential
Horizontal Sidewall Sprinklers de-
scribed herein must be installed and
maintained in compliance with this
document, as well as with the applica-
ble standards of the National Fire Pro-
tection Association, in addition to the
standards ofany other authorities hav-
ing jurisdiction. Failure to do so may
impair the performance of these de-
vices.
The owner is responsible for maintain-
ing their fire protection system and de-
vices in proper operating condition.
The installing contractor or sprinkler
manufacturer should be contacted
with any questions.
Sprinkler/Model
Identification
Number
SIN TY3334
Page 1 of 6 TFP415
JANUARY, 2006
Series LFII Residential, NFPA 13 Optimized
Horizontal Sidewall Sprinklers
5.6 K-factor
Technical Services: Tel: [phone] / Fax: [phone]
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 com-
ponents. Improper handling and in-
stallation can permanently damage
a sprinkler system or its compo-
nents and cause the sprinkler to fail
tooperateinafire situationor cause
it to operate prematurely.

Technical
Data
Approvals:
UL and C-UL Listed.
Maximum Working Pressure:
175 psi (12,1 bar)
Discharge Coefficient:
K=5.6GPM/psi
1/2 (80,6 LPM/bar1/2)
Temperature Rating:
155°F/68°C or 175°F/79°C
Finishes:
White Polyester Coated,
Chrome Plated, or Natural Brass
Physical Characteristics:
Frame .............Brass
Button . . . . . . . . . . . . Bronze
SealingAssembly..........
. . . . . Beryllium Nickel w/Teflon†
Bulb ........ 3mmdia.Glass
Compression Screw . . . . . Bronze
Deflector...........Copper
†Dupont Registered Trademark
Page2of6 TFP415
FIGURE 1
SERIES LFII (TY3334) RESIDENTIAL
HORIZONTAL SIDEWALL AND RECESSED HORIZONTAL SIDEWALL SPRINKLERS
FIGURE 2
STYLE 20 RECESSED ESCUTCHEON
FOR USE WITH THE SERIES LFII (TY3334)
RESIDENTIAL HORIZONTAL SIDEWALL SPRINKLER
WRENCH RECESS
(END "A" USED
FOR TY3334)
RECESS
WREN
C
H
WITH SPRINKLER
ENGAGEMENT
IN TO ENSURE
WREN
C
HIN
G
AREA
PUSH WRENCH
7/16" (11,1 mm)
MAKE-IN
NOMINAL
SURFACE
ESCUTCHEON
PLATE SEATING
Sealing Assembly
-
3
5
4
*
6Compression Screw
of Deflector.
is indicated on top
Temperature rating
Bulb
Deflector
-
-
-
*
1
Components:
2 Button Assembly
Frame
-
-
TOP
(57,2 mm)
2-1/4"
(41,3 mm)
1-5/8"
*
64
5321
2-7/8" DIA
.
(73,0 mm)
RECESSED
ESCUTCHEON
STYLE 20
RECESSED
FLATS
WRENCH
CENTERLINE
OF WATERWAY
1/2" NPT
BOSS
END-OF-
DEFLECTOR
TOP-OF-
DEFLECTOR
7/16"
(11,1 mm)
1-3/8" (34,9 mm)
1-1/8" (28,6 mm)
MOUNTING
PLATE
TY3334
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)
FIGURE 3
W-TYPE 6 SPRINKLER WRENCH
FIGURE 4
W-TYPE 7 RECESSED
SPRINKLER WRENCH

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 Series LFII (TY3334) Residential
Horizontal Sidewall Sprinklers are UL
and C-UL Listed for installation in ac-
cordance with the following criteria.
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 accept-
able to the local Authority Having Ju-
risdiction.
System Type. Only wet pipe systems
may be utilized.
Hydraulic Design. The minimum re-
quired sprinkler flow rate for systems
designed to NFPA 13D or NFPA 13R
are given in Table A and B as a func-
tion 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.
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 givenin Tables A and
B for NFPA 13D and 13R as a func-
tion of temperature rating and the
maximum allowable coverage area.
•Aminimum dischargeof 0.1gpm/sq.
ft. over the “design area” comprised
of the four most hydraulically de-
manding sprinklers for the actual
coverage areas being protected by
the four sprinklers.
Obstruction To Water Distribution.
Locations of sprinklers are to be in
accordance with the obstruction rules
of NFPA 13 for residential sprinklers.
Operational Sensitivity. The sprin-
klers are to be installed with an end-of-
deflector-boss to wall distance of 1-
3/8 to 6 inches or in the recessed po-
sition using only the Style 20 Re-
cessed Escutcheon as shown in
Figure 2.
In addition the top-of-deflector-to-ceil-
ing distance is to be within the range
(Ref. Table A or B) being hydraulically
calculated.
Sprinkler Spacing. The minimum
spacing between sprinklers is 8 feet
(2,4m)wheninstalledwithatop-of-de-
flector-to-ceiling distance of 4 to 6
inches (100 to 150 mm).The minimum
spacing between sprinklers is 9 feet
(2,7m)wheninstalledwithatop-of-de-
flector-to-ceiling distance of 6 to 12
inches (150 to 300 mm). The maxi-
mum spacing between sprinklers can-
not exceed the width of the coverage
area (Ref. Table A) being hydraulically
calculated (e.g., maximum 12 feet for
a 12 ft. x 12 ft. coverage area, or 16
feet for a 16 ft. x 20 ft. coverage area).
Installation
The Series LFII (TY3334) must be in-
stalled in accordance with the follow-
ing instructions:
NOTES
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).
A leak tight 1/2 inch NPTsprinkler joint
should be obtained with a torque of 7
to 14 ft.lbs. (9,5 to 19,0 Nm). A maxi-
mum of 21 ft.lbs. (28,5 Nm) of torque
is to be used to install sprinklers.
Higher levels of torque may distort the
sprinkler inlet with consequent leak-
age or impairment of the sprinkler.
Do not attempt to compensate for in-
sufficientadjustmentinan Escutcheon
Plate by under- or over-tightening the
Sprinkler. Readjust the position of the
sprinkler fitting to suit.
The Series LFII Horizontal Sidewall
Sprinklers must be installed in ac-
cordance with the following instruc-
tions.
Step 1. Horizontal sidewall sprinklers
are to be installed in the horizontal
position with their centerline of water-
wayperpendicularto the backwalland
parallel to the ceiling. The word “TOP”
on the Deflector is to face towards the
ceiling with the front edge of the De-
flector parallel to the ceiling.
Step 2. With pipe thread sealant ap-
plied 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 (Ref. Figure 3).
WithreferencetoFigure1,theW-Type
6 Sprinkler Wrench is to be applied to
the wrench flats.
TheSeriesLFIIRecessedHorizontal
Sidewall Sprinklers must be installed
in accordance with the following in-
structions.
Step A. Recessed horizontal sidewall
sprinklers are to be installed in the
horizontal 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 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 (Ref.
Figure 4). With reference to Figure 1,
the W-Type 7 Recessed Sprinkler
Wrenchis tobeapplied tothesprinkler
wrench flats.
Step C. After the wall has been in-
stalled or the finish coat has been ap-
plied, 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.
Care and
Maintenance
The Series LFII (TY3334) must be
maintained and serviced in accord-
ance with the following instructions:
NOTES
Absence of an Escutcheon Plate may
delay the sprinkler operation in a fire
situation.
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 sys-
tem must be obtained from the proper
authorities and all personnel who may
be affected by this action must be no-
tified.
Sprinklers which are found to be leak-
ing or exhibiting visible signs of corro-
sion must be replaced.
Automatic sprinklers must never be
painted, plated, coated, or otherwise
altered after leaving the factory. Modi-
fied 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
TFP415 Page 3 of 6
(Continued on Page 6)

Page4of6 TFP415
(a) For coverage area dimensions less than or between those indicated, it is necessary to use the minimum required flow for the next
highest coverage area for which hydraulic design criteria are stated.
(b) Width (backwall where sprinkler is located) x Length (horizontal throw of sprinkler).
(c) Requirement is based on minimum flow in GPM (LPM) from each sprinkler. The associated residual pressures are calculated using
the nominal K-factor. Refer to Hydraulic Design Criteria Section for details.
(d) Sidewall sprinklers, where installed under a ceiling with a slope greater than 0 inch rise for a 12 inch run to a slope up to 2 inch
rise for 12 inch run, must be located per one of the following:
•Locate the sprinklers at the high point of the slope and positioned to discharge down the slope.
•Locate the sprinklers along the slope and positioned to discharge across the slope.
TABLE A
NFPA 13D AND NFPA 13R WET PIPE HYDRAULIC DESIGN CRITERIA
FOR THE SERIES LFII (TY3334)
RESIDENTIAL HORIZONTAL SIDEWALL AND RECESSED HORIZONTAL SIDEWALL SPRINKLERS
FOR HORIZONTAL CEILING (Maximum 2 Inch Rise for 12 Inch Run)
12 x 12
(3,7 x 3,7)
Maximum
Coverage
Area(a)
Width x Length (b)
Ft. x Ft.
(m x m)
Minimum Flow (c) and Residual Pressure
14 x 14
(4,3 x 4,3)
16 x 16
(4,9 x 4,9)
16 x 18
(4,9 x 5,5)
16 x 20
(4,9 x 6,1)
19 GPM (71,9 LPM)
11.5psi(0,79bar)
24 GPM (90,8 LPM)
18.4psi(1,27bar)
26 GPM (98,4 LPM)
21.6psi(1,49bar)
29 GPM (109,8 LPM)
26.8psi(1,85bar)
17 GPM (64,3 LPM)
9.2 psi (0,63 bar)
155°F/68°C
Top-Of-Deflector- To- Ceiling:
4 to 6 Inches (100 to 150 mm)
175°F/79°C
Top-Of-Deflector- To- Ceiling:
6to12Inches(150to300mm)
155°F/68°C 175°F/79°C
20 GPM (75,7 LPM)
12.8psi(0,88bar)
22 GPM (83,3 LPM)
15.4psi(1,06bar)
28 GPM (106,0 LPM)
25.0psi(1,72bar)
31 GPM (117,3 LPM)
30.6psi(2,11bar)
37 GPM (140,0 LPM)
43.7psi(3,01bar)
12
(3,7)
14
(4,3)
16
(4,9)
16
(4,9)
16
(4,9)
Maximum
Spacing
Ft.
(m)
16
(4,9)
16 x 14
(4,9 x 4,3) 20 GPM (75,7 LPM) 12.8psi(0,88bar) 24 GPM (90,8 LPM) 18.4psi(1,27bar)
17 GPM (64,3 LPM)
9.2 psi (0,63 bar)
19 GPM (71,9 LPM)
11.5psi(0,79bar)
20 GPM (75,7 LPM)
12.8psi(0,88bar)
24 GPM (90,8 LPM)
18.4psi(1,27bar)
26 GPM (98,4 LPM)
21.6psi(1,49bar)
29 GPM (109,8 LPM)
26.8psi(1,85bar)
20 GPM (75,7 LPM)
12.8psi(0,88bar)
22 GPM (83,3 LPM)
15.4psi(1,06bar)
24 GPM (90,8 LPM)
18.4psi(1,27bar)
28 GPM (106,0 LPM)
25.0psi(1,72bar)
31 GPM (117,3 LPM)
30.6psi(2,11bar)
37 GPM (140,0 LPM)
43.7psi(3,01bar)
ELEVATI
O
N

TFP415 Page 5 of 6
(a) For coverage area dimensions less than or between those indicated, it is necessary to use the minimum required flow for the next
highest coverage area for which hydraulic design criteria are stated.
(b) Width (backwall where sprinkler is located) x Length (horizontal throw of sprinkler).
(c) Requirement is based on minimum flow in GPM (LPM) from each sprinkler. The associated residual pressures are calculated using
the nominal K-factor. Refer to Hydraulic Design Criteria Section for details..
TABLE B
NFPA 13D AND NFPA 13R WET PIPE HYDRAULIC DESIGN CRITERIA
FOR THE SERIES LFII (TY3334)
RESIDENTIAL HORIZONTAL SIDEWALL AND RECESSED HORIZONTAL SIDEWALL SPRINKLERS
FOR SPRINKLERS LOCATED ALONG A SLOPE AND DISCHARGING ACROSS THE SLOPE
(Greater Than 2 Inch Rise for 12 Inch Run Up To 4 Inch Rise for 12 Inch Run)
Maximum
Coverage
Area(a)
Width x Length (b)
Ft. x Ft.
(m x m)
Maximum
Spacing
Ft.
(m)
Minimum Flow (c) and Residual Pressure
Two sprinkler design with the sprinklers located along the slope and positioned to
discharge across the slope. .
Top-Of-Deflector- To- Ceiling:
4 to 6 Inches (100 to 150 mm)
155°F/68°C 175°F/79°C 155°F/68°C 175°F/79°C
Top-Of-Deflector- To- Ceiling:
6to12Inches(150to300mm)
16 x 16
(4,9 x 4,9) 16 (4,9) 24 GPM (90,8 LPM) 18.4psi(1,27bar) 24 GPM (90,8 LPM) 18.4psi(1,27bar) 24 GPM (90,8 LPM) 18.4psi(1,27bar) 24 GPM (90,8 LPM) 18.4psi(1,27bar)
ELEVATI
O
N
12" MAXIMUM4"

by wiping the sprinkler with a cloth or
by brushing it with a soft bristle brush.
Care must be exercised to avoid dam-
age to the sprinklers - before, during,
and after installation. Sprinklers dam-
aged by dropping, striking, wrench
twist/slippage, or the like, must be re-
placed.Also,replaceanysprinklerthat
has a cracked bulb or that has lost
liquid from its bulb. (Ref. Installation
Section).
The owner is responsible for the in-
spection, testing, and maintenance of
their fire protection system and de-
vices in compliance with this docu-
ment, as well as with the applicable
standards of the National Fire Protec-
tion Association (e.g., NFPA 25), in
addition to the standards of any other
authorities having jurisdiction. The in-
stalling contractor or sprinkler manu-
facturer should be contacted relative
to any questions.
NOTE
The owner must assure that the sprin-
klers are not used for hanging of any
objects and that thesprinklers 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.
It is recommended that automatic
sprinkler systems be inspected,
tested, and maintained by a qualified
Inspection Service in accordance with
local requirements and/or national
code.
Limited
Warranty
Products manufactured by Tyco Fire &
Building Products (TFBP) are war-
ranted solely to the original Buyer for
ten (10) years against defects in mate-
rial 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 TFBP. No
warranty is given for products or com-
ponents manufactured by companies
not affiliated by ownership with TFBP
or for products and components which
havebeensubjecttomisuse,improper
installation,corrosion, or which have
not been installed, maintained, modi-
fied or repaired in accordance with ap-
plicable Standards of the National Fire
Protection Association, and/or the
standards of any other Authorities
Having Jurisdiction. Materials found
by TFBP to be defective shall be either
repaired or replaced, at TFBP’s sole
option. TFBP neither assumes, nor
authorizesanypersontoassume forit,
any other obligation in connection with
the sale of products or parts of prod-
ucts.TFBP shallnotbe responsiblefor
sprinkler system design errors or inac-
curate or incomplete information sup-
plied by Buyer or Buyer’s repre-
sentatives.
In no event shall TFBP be liable, in
contract, tort, strict liability or under
any other legal theory, for incidental,
indirect,specialorconsequentialdam-
ages, including but not limited to labor
charges, regardless of whether TFBP
was informed about the possibility of
such damages, and in no event shall
TFBP’s liability exceed an amount
equal to the sales price.
Theforegoingwarrantyismadeinlieu
of any and all other warranties, ex-
press or implied, including warranties
ofmerchantabilityandfitnessforapar-
ticular purpose.
This limited warranty sets forth the ex-
clusive remedy for claims based on
failure of or defect in products, materi-
als or components, whether the claim
is made in contract, tort, strict liability
or any other legal theory.
This warranty will apply to the full ex-
tent permitted by law. The invalidity, in
whole or part, of any portion of this
warranty will not affect the remainder.
Ordering
Procedure
When placing an order, indicate the
full product name. Contact your local
distributor for availability..
Sprinkler Assembly:
Series LFII (TY3334), K=5.6,Residen-
tial Horizontal Sidewall Sprinkler with
(specify) temperature rating and
(specify) finish, P/N (specify).
155°F/68°C
Chrome Plated . . . . . . . . . . . . P/N 51-524-9-155
White Coated . . . . . . . . . . . . . P/N 51-524-4-155
White (RAL9010)*. . . . . . . . . . P/N 51-524-3-155
Natural Brass . . . . . . . . . . . . . P/N 51-524-1-155
175°F/79°C
Chrome Plated . . . . . . . . . . . . P/N 51-524-9-175
White Coated . . . . . . . . . . . . . P/N 51-524-4-175
White (RAL9010)*. . . . . . . . . . P/N 51-524-3-175
Natural Brass . . . . . . . . . . . . . P/N 51-524-1-175
* Eastern Hemisphere sales only.
Recessed Escutcheon:
Specify: Style 20 Recessed Escutch-
eon with (specify*) finish, P/N (spec-
ify*).
* 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.
Page6of6 TFP415
TYCO FIRE & BUILDING PRODUCTS, 451 North Cannon Avenue, Lansdale, Pennsylvania 19446