Tyco Fire Product RAPID RESPONSE LFII Series User manual

RAPID RESPONSE Series LFII Residential Sprinklers
4.9 K-factor Flat-Plate Concealed Pendent
Wet Pipe and Dry Pipe Systems
Page 1 of 6 JANUARY 2016 TFP443
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
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
General
Description
The TYCO RAPID RESPONSE Series
LFII Residential Flat-Plate Concealed
Pendent Sprinklers (TY2524) are dec-
orative, fast response, fusible solder
sprinklers designed for use in residen-
tial occupancies such as homes, apart-
ments, dormitories, and hotels.
The Cover Plate/Retainer Assem-
bly conceals the sprinkler operating
components above the ceiling. The
flat profile of the Cover Plate provides
the optimum aesthetically appealing
sprinkler design. Additionally, the con-
cealed design of the Series LFII Resi-
dential Flat-Plate Concealed Pendent
Sprinklers provides 1/2 inch (12,7 mm)
vertical adjustment. This adjustment
provides a measure of flexibility when
cutting fixed sprinkler drops.
The Series LFII Residential Flat-
Plate Concealed Pendent Sprinklers
are intended for use in the following
systems:
• 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
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.
The Series LFII Residential Flat-Plate
Concealed Pendent Sprinklers are
shipped with a Disposable Protective
Cap. The Protective Cap protects the
sprinkler during ceiling installation or
finish. After ceiling installation is com-
plete, the Protective Cap is removed
and the Cover Plate/Retainer Assem-
bly is installed. Removing the Protec-
tive Cap is required for proper sprinkler
performance.
Dry Pipe System Application
The Series LFII Residential Flat-Plate
Concealed Pendent Sprinkler offers
a laboratory approved option for
designing dry pipe residential sprin-
kler systems, whereas, most residen-
tial 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 Flat-Plate
Concealed Sprinklers (TY2524) need
not be increased over the number of
design sprinklers (hydraulic design
area) specified for wet pipe sprinkler
systems, as is customary for density/
area sprinkler systems designed per
NFPA 13, 13D, or 13R.
Consequently, the Series LFII Resi-
dential Flat-Plate Concealed Sprin-
klers (TY2524) offer the features of
non-water filled 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.
NOTICE
The Series LFII Residential Flat-
Plate Concealed Pendent Sprinklers
(TY2524) 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.
The owner is responsible for main-
taining their fire protection system
and devices in proper operating con-
dition. Contact the installing contrac-
tor or sprinkler manufacturer with any
questions.
Sprinkler
Identification
Number (SIN)
TY2524
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TFP443
Page 2 of 6
Technical
Data
Approvals
UL and C-UL Listed
Certified to all requirements of
NSF/ANSI 61
The TYCO RAPID RESPONSE Series LFII
Residential Flat-Plate Concealed Pendent
Sprinklers are only listed with the Series
LFII Concealed Cover Plates having a
factory-applied finish.
These Cover Plates and their part numbers
can be found in the Ordering Procedure
section at the end of this data sheet.
(Refer to 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
Sprinkler: 160°F (71°C)
Cover Plate: 139°F (59°C)
Vertical Adjustment
1/2 inch (12,7 mm)
Finishes
Refer to the Ordering Procedure section
Physical Characteristics
Cover Plate/Retainer Assembly:
Cover Plate . . . . . . . . . . . . . . . . . . . . . . . Copper
Ejection Spring . . . . . . . . . . . . . . Stainless Steel
Retainer . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Sprinkler/Support Cup Assembly:
Body . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Saddle . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Soldered Link Halves Nickel
Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Compression Screw . . . . . . . . . . . . . . . . . .Brass
Deflector . . . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Guide Pin Housing . . . . . . . . . . . . . . . . . .Bronze
Guide Pins . . . . . . . . . . . . . . . . . . . . . . . .Bronze
Support Cup . . . . . . . . . . . . . . . . . . . . . . . Steel
Sealing Assembly ..Beryllium Nickel w/TEFLON
Operation
When exposed to heat from a fire, the
Cover Plate, which is normally soldered
to the Retainer at three points, falls
away to expose the Sprinkler/Support
Cup Assembly. At this point, the Deflec-
tor, supported by the Guide Pins, drops
down to its operated position.
The Solder Link Element of the Sprin-
kler/Support Cup Assembly is com-
prised of two link halves that are
soldered together with a thin layer of
solder. When the rated temperature is
reached, the solder melts and the two
link halves separate, allowing the sprin-
kler to activate and flow water.
Design
Criteria
The TYCO RAPID RESPONSE Series
LFII Residential Flat-Plate Concealed
Pendent Sprinklers (TY2524) 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 accept-
able to the authority having jurisdiction.
System Type
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
about the use of Residential Sprinklers
in residential dry pipe systems.
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
sprinkler flow rate are given in Tables
A and B as a function of tempera-
ture rating and the maximum allow-
able coverage areas. The sprinkler
flow rate is the minimum required dis-
charge from each of the total number
of “design sprinklers” as specified in
NFPA 13D or NFPA 13R. The number of
“design sprinklers” specified in NFPA
13D and 13R for wet pipe systems is
to be applied when designing dry pipe
systems.
SPRINKLER/SUPPORT CUP
ASSEMBLY
COVER PLATE/RETAINER
ASSEMBLY
COVER
PLATE
EJECTION
SPRING
RETAINER
WITH THREAD
DIMPLES
SOLDER
TAB
SEALING
ASSEMBLY
COMPRESSION
SCREW
DEFLECTOR
(OPERATED
POSITION)
SPRINKLER
WRENCHING
AREA
SOLDER LINK
ELEMENT
LEVER
DEFLECTOR
CAP
BODY
(1/2" NPT)
SADDLE
SUPPORT
CUP WITH
ROLL FORMED
THREADS
GUIDE
PIN
GUIDE PIN
HOUSING
THREAD INTO
SUPPORT
CUP UNTIL
MOUNTING
SURFACE IS
FLUSH WITH
CEILING
FIGURE 1
RAPID RESPONSE SERIES LFII RESIDENTIAL
FLAT-PLATE CONCEALED PENDENT SPRINKLER (TY2524)
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TFP443
Page 3 of 6
Maximum
Coverage
Area(a)
Ft. x Ft.
(m x m)
Maximum
Spacing
Ft.
(m)
WET PIPE SYSTEM
Minimum Flow and Residual Pressure(b, c)
Ordinary Temp Rating
160°F (71°C) Deflector to
Ceiling Installation Type
Minimum
Spacing
Ft.
(m)
Flow
GPM
(L/min)
Pressure
PSI
(bar)
12 x 12
(3,7 x 3,7)
12
(3,7)
13
(49,2)
7.0
(0,48) Smooth
Ceilings
7/8 to 1-1/8
inches.
Beamed
Ceilings per
NFPA 13D
13R, or 13
Installed in
beam 7/8 to
1-1/8 inches
below bottom
of beam
Concealed 8
(2,4)
14 x 14
(4,3 x 4,3)
14
(4,3)
13
49,2)
7.0
(0,48)
16 x 16
(4,9 x 4,9)
16
(4,9)
13
(49,2)
7.0
(0,48)
18 x 18
(5,5 x 5,5)
18
(5,5)
17
(64,3)
12.0
(0,83)
20 x 20
(6,1 x 6,1)
20
(6,1)
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 section under the 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 calcu-
lated using the nominal K-factor. Refer to “Hydraulic Design” in the Design Criteria section for details.
c. For NFPA 13 residential applications, the greater of 0.1 gpm/ft² over the design area or the ow in accordance with the criteria in this table
must be used.
Maximum
Coverage
Area(a)
Ft. x Ft.
(m x m)
Maximum
Spacing
Ft.
(m)
DRY PIPE SYSTEM
Minimum Flow and Residual Pressure(b)
Ordinary Temp Rating
160°F (71°C) Deflector to
Ceiling Installation Type
Minimum
Spacing
Ft.
(m)
Flow
GPM
(L/min)
Pressure
PSI
(bar)
12 x 12
(3,7 x 3,7)
12
(3,7)
15
(56,8)
9.4
(0,65) Smooth
Ceilings
7/8 to 1-1/8
inches.
Beamed
Ceilings per
NFPA 13D
13R, or 13
Installed in
beam 7/8 to
1-1/8 inches
below bottom
of beam
Concealed 8
(2,4)
14 x 14
(4,3 x 4,3)
14
(4,3)
15
(56,8)
9.4
(0,65)
16 x 16
(4,9 x 4,9)
16
(4,9)
16
(60,6)
10,7
(0,74)
18 x 18
(5,5 x 5,5)
18
(5,5)
17
(64,3)
12.0
(0,83)
20 x 20
(6,1 x 6,1)
20
(6,1)
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 section under the 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 calcu-
lated using the nominal K-factor. Refer to “Hydraulic Design” in the Design Criteria section for details.
c. For NFPA 13 residential applications, the greater of 0.1 gpm/ft² over 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 FLAT-PLATE CONCEALED PENDENT SPRINKLER (TY2524)
NFPA 13D, 13R, AND 13 HYDRAULIC DESIGN CRITERIA
TABLE B
DRY PIPE SYSTEM
SERIES LFII RESIDENTIAL FLAT-PLATE CONCEALED PENDENT SPRINKLER (TY2524)
NFPA 13D, 13R, AND 13 HYDRAULIC DESIGN CRITERIA
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TFP443
Page 4 of 6
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 Tables A
and B 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 the actual
coverage areas being protected by
the four sprinklers
The number of “design sprinklers”
specified in NFPA 13 for wet pipe
systems is to be applied when design-
ing dry pipe systems.
Dry Pipe System Water Delivery
When using the Series LFII Residential
Flat-Plate Concealed Pendent Sprin-
klers (TY2524) in dry pipe sprinkler
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 applicable
for residential sprinklers as well as with
the obstruction criteria described within
the Technical Data Sheet TFP490.
Operational Sensitivity
Install sprinklers relative to the ceiling
mounting surface (Ref. Figure 2).
The Series LFII Residential Flat-Plate
Concealed Pendent Sprinklers must
not be used in applications where the
air pressure above the ceiling is greater
than that below. Down drafts through
the Support Cup can delay sprinkler
operation in a fire situation.
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
(e.g., a maximum of 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 Flat-Plate Concealed
Pendent Sprinklers must be installed
in accordance with this section:
General Instructions
Damage to the Solder Link Element
during installation can be avoided by
handling the sprinkler by the Support
Cup only; that is, do not apply pres-
sure to the Solder Link Element (Ref.
Figure 1).
A leak-tight 1/2 inch NPT sprinkler joint
should be obtained by applying a min-
imum-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 the Cover
Plate/Retainer Assembly by under- or
over-tightening the sprinkler. Re-adjust
the position of the sprinkler fitting to
suit.
Step 1. Install pendent sprinklers in
the pendent position, with the center-
line of the sprinkler perpendicular to the
mounting surface.
Step 2. Remove the Protective Cap.
Step 3. With pipe-thread sealant
applied to the pipe threads, and using
the W-Type 18 Wrench (Ref. Figure
3), install and tighten the Sprinkler/
Support Cup Assembly into the fitting.
The W-Type 18 Wrench accepts a 1/2
inch ratchet drive.
Step 4. Replace the Protective Cap by
pushing it upwards until it bottoms out
against the Support Cup (Ref. Figure
2). The Protective Cap helps prevent
damage to the Deflector and Guide
Pins during ceiling installation and/or
during application of the finish coating
of the ceiling.
3-3/16" DIA.
(81,0 mm)
1/2"
NPT
2-1/2" DIA.
(63,5 mm)
MOUNTING
SURFACE
3/16"
(4,8 mm)
1/8" GAP
(3,2 mm)
FACE OF
SPRINKLER
FITTING
7/8" (22,2 mm)
1-1/8" (28,6 mm)
TIP
DEFLECTOR IN
OPERATED POSITION
1/2" (12,7 mm)
THREADED
ADJUSTMENT
SPRINKLER-
SUPPORT CUP
ASSEMBLY
OPERATED
SPRINKLER
1-7/8"±1/4"
(47,6 mm
±6,4 mm)
SPRINKLER-
SUPPORT CUP
ASSEMBLY
COVER-
RETAINER
ASSEMBLY
COVER
PLATE
RETAINER
DISPOSABLE
PROTECTIVE CAP
WRENCH
RECESS
PUSH WRENCH
IN TO ENSURE
ENGAGEMENT
WITH SPRINKLER
WRENCHING AREA
FIGURE 2
RAPID RESPONSE SERIES LFII RESIDENTIAL FLAT-PLATE (TY2524)
INSTALLATION DIMENSIONS/PROTECTIVE CAP/ACTIVATED DEFLECTOR
FIGURE 3
W-T YPE 18
SPRINKLER WRENCH
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TFP443
Page 5 of 6
NOTICE
As long as the protective Cap remains
in place, the system is considered “Out
Of Service”.
Step 5. After the ceiling has been
completed with the 2-1/2 inch (63
mm) diameter hole and in preparation
for installing the Cover Plate/Retainer
Assembly, remove and discard the Pro-
tective Cap, and verify that the Deflec-
tor moves up and down freely.
If the sprinkler has been damaged and
the deflector does not move up and
down freely, replace the entire sprinkler
assembly. Do not attempt to modify or
repair a damaged sprinkler.
Step 6. Screw on the Cover Plate/
Retainer Assembly until its flange
contacts the ceiling. Do not continue
to screw on the Cover Plate/Retainer
Assembly such that it lifts a ceiling
panel out of its normal position.
If the Cover Plate/Retainer Assembly
cannot be engaged with the Mount-
ing Cup or the Cover Plate/Retainer
Assembly cannot be engaged suffi-
ciently to contact the ceiling, the Sprin-
kler Fitting must be repositioned.
Care and
Maintenance
The TYCO RAPID RESPONSE Series
LFII Residential Flat-Plate Concealed
Pendent Sprinkler (TY2524) 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
system from the proper authorities
and notify all personnel who may be
affected by this action.
Absence of a Cover Plate may delay the
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.
When properly installed, there is a
nominal 1/8 inch (3,2 mm) air gap
between the lip of the Cover Plate and
the ceiling, as shown in Figure 3. This
air gap is necessary for proper opera-
tion of the sprinkler by allowing heat
flow from a fire to pass below and
above the Cover Plate to help assure
appropriate release of the Cover Plate
in a fire situation. If the ceiling needs
repainting after sprinkler installation,
exercise care to ensure that the new
paint does not seal off any of the air
gap. Failure to do so may impair sprin-
kler operation.
Factory painted Cover Plates must not
be repainted. They should be replaced,
if necessary, by factory painted
units. Non-factory applied paint may
adversely delay or prevent sprinkler
operation in the event of a fire.
Do not pull the Cover Plate relative to
the Retainer. Separation 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 otherwise
altered after leaving the factory. Modi-
fied or overheated 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.
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 Asso-
ciation (e.g., NFPA 25), in addition to
the standards of any other authorities
having jurisdiction. Contact the install-
ing contractor or sprinkler manufac-
turer 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.
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 description and Part
Number (P/N).
Sprinkler/Support Cup Assembly
Specify: Series LFII (TY2524), K = 4.9
(70,6), Residential Flat-Plate Concealed
Pendent Sprinkler without Cover Plate/
Retainer Assembly, P/N 51-114-1-160
Cover Plate/Retainer Assembly
Specify: Series LFII (TY2524), K = 4.9
(70,6), Residential Flat-Plate Concealed
Pendent Sprinkler Cover Plate/Retainer
Assembly with (specify) finish, P/N
(specify):
Ivory (RAL 1015)...............56-202-0-135
Beige (RAL 1001) ..............56-202-2-135
Pure White(b) (RAL 9010) . . . . . . . . 56-202-3-135
Signal White(a) (RAL 9003) . . . . . . . 56-202-4-135
Grey White (RAL 9002) . . . . . . . . . 56-202- 5-135
Brown (RAL 8028) . . . . . . . . . . . . .56-202-6-135
Black (RAL 9005) ..............56-202-7-135
Brushed Brass ................56-202-8-135
Brushed Chrome ..............56-202-9-135
Custom Paint .................56-202-X-135
(a) Previously known as Bright White
(b) Eastern Hemisphere sales only
Note: All Custom Cover Plates are
painted using Sherwin Williams Interior
Latex Paint. Contact TYCO Customer
Service with any questions related to
custom orders.
Sprinkler Wrench
Specify: W-Type 18 Sprinkler Wrench,
P/N 56-000-1-265
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TFP443
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TEFLON is trademark of The DuPont Corporation
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