Tyco Rapidresponse TY2596, Rapidresponse LFII Series Quick Start Manual

Technical Services: Tel: [phone]/ Fax: [phone]

Series LFII Residential
Concealed Pendent Sprinklers, Flat Plate

4.2 K-factor

pressures, enabling smaller pipe sizes

General
Description

The Series LFII (TY2596) Residential
Concealed Pendent Sprinklers are
decorative, fast response, fusible sol­der sprinklers designed for use in resi­dential occupancies such as homes,
apartments, dormitories, and hotels.

The cover plate a sse mbly conceals
the sprinkler opera ting co mponents
abovetheceiling.The flatprofile of the
cover plate provides the optimum aes­thetically appealing sprinkler design.
In addition, the concealed design of
the Series LFII (TY2596) provides 1/2
inch (12,7 mm) vertical adjustment.
This adjustment reduces the accuracy
to which the fixed pipe drops to the
sprinklers must be cut to help assure
a perfect fit installation.

The Series LFII are to be used in wet
pipe residential sprinkler systems for
one- andtwo-family dwellings and mo­bile homes per NFPA 13D; wet pipe
residential sprinkler systems for resi­dential occupancies up to and includ­ing four stories in height per NFPA
13R;or, wet pipe sprinkler systems for
the residential portions of any occu­pancy per NFPA 13.

The Series LFII (TY2596) has a 4.2
(60,5) K-factor that provides the re­quiredresidential flowratesat reduced

IMPORTANT

Always refer to Technical Data
Sheet TFP700 for the “INSTALLER
WARNING” that provides cautions
with respect to handling and instal­lation ofsprinkler systems and com­ponents. Improper handling and in­stallation can permanently damage
a sprinkler system or its compo­nents and cause the sprinkler to fail
tooperate in afire situationor cause
it to operate prematurely.

and water supply requirements.
The Series LFII (TY2596) has been

designed wi th heat sensiti vity and
water distribution characteristics
provento helpin thecontrol ofresiden­tial fires and to improve the chance for
occupants to escape or be evacuated.

The Series LFII (TY2596) Residential
Concealed Pendent Sprinklers are
shipped with a Disposable Protective
Cap.The ProtectiveCap istemporarily
removed for installation, and then it
can be replaced to help protect the
sprinkler while the ceiling is being in­stalled or finished. The tip of the Pro­tective Cap can also be used to mark
the center of the ceiling hole into plas­ter board, ceiling tiles, etc. by gently
pushingthe ceiling productagainst the
Protective Cap. When the ceiling in­stallation is complete the Protective
Cap is removed and the Cover Plate
Assembly installed.

WARNINGS

The Series LFII (TY2596) Residential
Concealed Pendent Sprinklers de­scribed herein must be installed and
maintained in complian ce with this
document, as well as with the applica­ble stand ar ds of the National Fir e Pro­tection Association, in addition to the
standardsof any other authoritieshav­ing jurisdiction. Failure to do so may

impair the performance of these de­vices.

The owner is responsible for maintain­ing their fire protection system and de­vices in proper operating condition.
The installing contractor or sprinkler
manufacturer should be contacted
with any questions.

Sprinkler/Model
Identification
Number

SIN TY2596

Technical
Data

Approvals:

UL and C-UL Listed. NYC Approved
under MEA 44-03-E.

Maximum Working Pressure:

175 psi (12,1 bar)

Discharge Coefficient:

K=4.2GPM/psi

Temperature Rating:

160°F/71°C Sprinkler with
135°F/57°C Cover Plate

Vertical Adjustment:

1/2 inch (12,7 mm)

Finishes:

Cover Plate:
Flat White, Bright White, Chrome, or
Custom

Physical Characteristics:

Body ..............Brass

Cap . . . . . . . . . . . . . . Bronze

Saddle.............Brass

SealingAssembly..........

. . . . . Beryllium Nickel w/ Teflon†

Soldered Link Halves . . . . . Ni ck el

Lever . . . . . . . . . . . . . Bronze

Compression Screw . . . . . . Brass

Deflector........... Copper

1/2

(60,5 LPM/bar

1/2

)

Page 1 of 4 TFP440

JANUARY, 2006

Page2of4

TFP440

Minimum Flow

Maximum
Coverage

(a)

Area
Ft. x Ft.
(m x m)

12 x 12

(3,7 x 3,7)

14 x 14

(4,3 x 4,3)

16 x 16

(4,9 x 4,9)

18 x 18

(5,5 x 5,5)

20 x 20

(6,1 x 6,1)

(a) For coverage area dimensions less than or b etwee n those indicated, it is necessary to use the minimum required flow for the

next highest coverage area for which hydraulic design criteria are st ated.

(b) Requirement is based on minimum flow in GPM (LPM) from each sprinkler. The associated residua l pressures are calculated

using the nominal K-factor. Refer to Hy draulic Design Criteria Section for details.

Maximum

Spacing

Ft.

(m)

12

(3,7)

14

(4,3)

16

(4,9)

18

(5,5)

20

(6,1)

Residual Pressure

For Horizontal Ceiling

(Max. 2 Inch Rise

for 12 Inch Run)

160°F/71°C

Sprinkler

13 GPM (49,2 LPM)

9.6 psi (0,66 bar)

14 GPM (53,0 LPM)

11.1psi(0,77bar)

16 GPM (60,6 LPM)

14.5psi(1,00bar)

20 GPM (75,7 LPM)

22.7psi(1,57bar)

24 GPM (90,8 LPM)

32.7psi(2,25bar)

(b)

and

Minimum Flow

Residual Pressure
For Sloped Ceiling

(Greater Than 2 Inch

Rise Up To

Max. 4 Inch Rise

for 12 Inch Run)

160°F/71°C

Sprinkler

18 GPM (68,1 LPM)

18.4psi(1,27bar)

18 GPM (68,1 LPM)

18.4psi(1,27bar)

18 GPM (68,1 LPM)

18.4psi(1,27bar)

20 GPM (75,7 LPM)

22.7psi(1,57bar)

26 GPM (98,4 LPM)

38.3psi(2,64bar)

(b)

and

Minimum Flow

Residual Pressure
For Sloped Ceiling

(Greater Than 4 Inch

Rise Up To

Max. 8 Inch Rise

for 12 Inch Run)

160°F/71°C

Sprinkler

18 GPM (68,1 LPM)

18.4psi(1,27bar)

18 GPM (68,1 LPM)

18.4psi(1,27bar)

18 GPM (68,1 LPM)

18.4psi(1,27bar)
N/A

N/A

(b)

and

TABLE A

NFPA 13D AND NFPA 13R WET PIPE HYDRAULIC DESIGN CRITERIA

FOR THE SERIES LFII (TY2596) RESIDENTIAL CONCEALED PENDENT SPRINKLER

Guide Pin Housing . . . . . . Bronze

Guide Pins . . . . . . Stainless Steel

SupportCup .......... Steel

CoverPlate..........Copper

Retainer ............Brass

Cover Plate Ejection Spring . . . . .

............StainlessSteel

†DuPont Registered Trademark

Operation

When exposed to heat from a fire, the
Cover Pla te, w hic h i s no rma lly sol­dered to the Support Cup at three
points, falls away to expose the Sprin­kler Assembly. At this pointthe Deflec­tor supported by the Arms drops down
to its operated position. The fusible
link of the Sprinkler Assembly is com­prised of two link halves that are sol­dered together with a thin layer of sol­der. When the ra ted temperature is
reached, the solder melts and the two
linkhalves separateallowing the sprin­kler to activate and flow water.

Design
Criteria

The Series LFII (TY2596) Residential
Concealed Pendent Sprinklers are UL
and C-UL Listed for installation in ac­cordance with the following cr iteria.

When conditions exist that are outside

NOTE

thescope of the providedcriteria, refer
to the Residen tial Sprinkler Design
Guide TFP490 for the manufacturer’s
recommendationsthat may be accept­able to the Authority Having Jurisdic­tion.

System Type. Only wet pipe systems
may be utilized.

Hydraulic Design. The minimum re­quired sprinkler flow rate for systems
designed to NFPA 13D or NFPA 13R
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.

Forsystems designed to NFPA13, the
number of design sprinklers is to be
the four most hydraulically demanding
sprinklers. The minimum required dis­chargefrom each of thefour sprinklers
is to be the greater of the following:

• The flow rates given in Table A for
NFPA 13D and 13R as a function of
temperature rating and the maxi­mum allowable coverage area.

• A minimum dischargeof 0.1gpm/sq.
ft. over the “design area” comprised
of the four most hydraulically de­manding 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 sprin­klers are to be installed relative to the
ceiling mounting surface as shown in
Figure 3.

Sprinkler Spacing. The minimum
spacing between sprinklers is 8 feet
(2,4 m). The maximum spacing be­tween sprinklers cannot exceed the
length of the coverage area (Ref. Ta­ble A) being hydraulically calculated
(e.g., maximum 12 feet for a 12 ft. x
12ft. coverage area, or 20 feet fora 20
ft. x 20 ft. coverage area).

Installation

The Series LFII (TY2596) must be in­stalled in accordance with the follow­ing instructions:

NOTES

Damage to the fusible Link Assembly
during installation can be avoided by
handling the sprinkler by the frame
arms only (i.e., do not apply pressure
to the fusible link Assembly).

A leaktight 1/2 inchNPTsprinkler joint
should be obtained with a torque of 7
to 14 ft.lbs. (9,5 to 19,0 Nm). A maxi-

TFP440

/

C

C

Page 3 of 4

BODY

(1/2" NPT)

CAP

SADDLE

SUPPORT
CUP WITH

ROLL FORMED

THREADS

GUIDE

PIN

GUIDE PIN

HOUSING

DEFLECTOR

THREAD INTO

SUPPORT CUP

UNTIL MOUNTING

SURFACE IS
FLUSH WITH

CEILING

SPRINKLER/SUPPORT CUP

ASSEMBLY

SEALING

ASSEMBLY

SPRINKLER

WRENCHING

AREA

COMPRESSION

SCREW

LEVER

SOLDER LINK

ELEMENT

DEFLECTOR

(OPERATED

POSITION)

RETAINER

WITH THREAD

DIMPLES

EJECTION

SPRING

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 leak­age or impairment of the sprinkler.

Do not attempt to compensate for in­sufficientadjustment inan Escutcheon
Plate by under- or over-tightening the
Sprinkler. Readjust the position of the
sprinkler fitting to suit.

Step 1. The sprinkler must only be
installed in the pendent position and
with the centerline of the sprinkler per­pendicular to the mounting surface.

Step 2 . Remove the Protective Cap.
Step 3. With pipe thread sealant ap-

plied to the pipe threads, and using
the W-Type 18 Wrench shown in Fig­ure 2, install and tighten the Sprink­ler/Support Cup Assembly into the fit­ting. The W-Type 18 Wrench will
accept a 1/2 inch ratchet drive.

H

WREN

RECESS

SOLDER

TAB

1/2"

NPT

COVER-

RETAINER

COVER PLATE/RETAINER

ASSEMBLY

COVER

PLATE

FIGURE 1

SERIES LFII (TY2596) RESIDENTIAL

CONCEALED PENDENT SPRINKLER

2-1

2" DIA.

(63,5 mm)

SPRINKLER-

SUPPORT CUP

ASSEMBLYASSEMBLY

3-3/16" DIA.

(81,0 mm)

1/2" (12,7 mm)

THREADED

ADJUSTMENT

1/8" GAP
(3,2 mm)

3/16"

(4,8 mm)

FACE OF

SPRINKLER

FITTING

1-15/16"±1/4"

(49,2 mm
±6,4 mm)

MOUNTING

SURFACE

TIP OPERATEDPOSITION

DISPOSABLE

PROTECTIVE CAP

SPRINKLER-

SUPPORT CUP

ASSEMBLY

OPERATED

SPRINKLER

COVER

PLATE

RETAINER

1/2" (12,7 mm)

1" (25,4 mm)

FIGURE 3

SERIES LFII (TY2596) RESIDENTIAL CONCEALED PENDENT SPRINKLER

INSTALLATION DIMENSIONS / PROTECTIVE CAP / ACTIVATED DEFLECTOR

PUSH WRENCH

IN TO ENSURE
ENGAGEMENT

WITH SPRINKLER

WREN

HINGAREA

FIGURE 2

W-TYPE 18

SPRINKLER WRENCH

DEFLECTOR IN

Page4of4

TFP440

Step 4. Replace the ProtectiveCap by
pushing it upwards until it bottoms out
against the Support Cup. The Protec­tive Cap helps prevent damage to the
Deflector and Arms during ceiling in­stallation and/or during application of
the finish coating of the ceiling. It may
also be used to locate thecenter of the
clearance hole by gently pushing the
ceiling material against the center
point o f the Cap.

NOTE

As long as the protective Cap remains
in place, the system is considered to
be “Out Of Service”.

Step 5.After theceiling hasbeen com­pleted with the 2-1/2 inch (63 mm)
diameter clearance hole and in prepa­ration forinstalling the Cover Plate As­sembly, remove and discard the Pro­tective Cap, and verify that the
Deflector moves up and down freely.

Ifthe Sprinklerhas been damagedand
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 As­sembly until its flange comes in con­tact with the ceiling.

Do not continue to screw on the Cover
Plate Assembly such that it lifts a ceil­ing panel out of its normal position.

If the Cover Plate Assembly cannotbe
engaged with the Mounting Cup or the
Cover Plate Assembly cannot be en­gaged sufficiently to contact the ceil­ing, the Sprinkler Fitting must be repo­sitioned.

Care and
Maintenance

The Serie s L FII (TY25 96) must be
maintained and serviced in accord­ance with the following instructions:

NOTES

Absence of an Escutcheon Plate may
delay the sprinkler operation in a fire
situation.

Before closing a fire protectionsystem
main control valve for maintenance
work on the fir e pro tection system
which it controls, permission to shut
down the affected fire protection sys­tem must be obtained from the proper
authorities and all personnel who may
be affected by this action must be no­tified.

Sprinklers which are found to be leak­ing or exhibiting visible signs of corro­sion must be replaced.

Automatic sprink ler s must never be

painted, plated, coated, or otherwise
altered after leaving the factory. Modi­fied or over heated sprinklers must be
replaced.

Care must be exercised to avoid dam­age - before, during, and after instal­lation. Sprinkl er s d am a ged b y dr op ­ping, striking, wr ench 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 comp lia nce with this docu­ment, as well as with the applicable
standards of the National Fire Protec­tion Association (e.g., NFPA 25), in
addition to the standards of any other
authorities having jurisdiction. The in­stalling contractor or sprinkler manu­facturer should be contacted relative
to any questions.

NOTE

The owner must assure that the sprin­klers are not used for hanging of any
objectsand that the sprinklersare only
cleaned by means of gently dusting
with a feather duster; otherwise, non­operation in the event of a fire or inad­vertent 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
codes.

Limited
Warranty

Products manufactured by Tyco Fire&
Building Products (TFBP) 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 TFBP. No
warranty is given for products or com­ponents manufactured by companies
not affiliated by ownership with TFBP
or for products and components which
havebeen subjectto misuse,improper
installation, corrosion, or which have
not been installed, maintained, modi­fied or repaired in accordancewith ap­plicable 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 beeither
repaired or replaced, at TFBP’s sole
option. TFBP neither assumes, nor
authorizesany personto assumefor it,
any other obligationin connection with
the sale of products or parts of prod-

ucts.TFBP shall not be responsiblefor
sprinkler systemdesign errors or inac­curate or incomplete information sup­plied by Buyer or Buy er’s repre­sentatives.

In no event shall TFBP be liable, in
contract, tort, strict liability or under
any other legal theory, for incidental,
indirect,special or consequentialdam­ages, 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.

The foregoing wa rr an ty is made in lieu
of any and all other warranties, ex­press or implied, including warranties
of merchantability and fitness 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

When placing an order, indicate the
full product name. Contact your local
distributor for availability..

Sprinkler Assembly:

SeriesLFII (TY2596), K=4.2,Residen­tialConcealed Pendent Sprinkler with­out Cover Plate Assembly,
P/N 51-122-1-160.

Cover Plate Assembly:

Cover Plate Assembly having a (spec­ify) finish for the Series LFII (TY2596),
K=4.2, Re sidential Concealed Pen­dent Sprinkler, P/N (specify).

Chrome . . . . . . . . . . . . . . . . . . P/N 56- 122-9-135

Off White . . . . . . . . . . . . . . . . . P/N 56-122-0-135

Bright White. . . . . . . . . . . . . . . P/N 56-122-4-135

Flat White . . . . . . . . . . . . . . . . P/N 56-122-5-135

White (RAL9010)* . . . . . . . . . . P/N 56-122-3-135

Custom . . . . . . . . . . . . . . . . . . P/N 56-122-X-135

*Eastern Hemisphere sales only.

Sprinkler Wr ench:

Specify: W-Type18 Sprinkler Wrench,
P/N 56-000-1-265.

TYCO FIRE & BUILDING PRODUCTS, 451 North Cannon Avenue, Lansdale, Pennsylvania 19446