Johnson Controls tyco TY2235 User manual

RAPID RESPONSE Series LFII Residential Sprinklers
4.9 K-factor Recessed Pendent, Dry Type
Wet Pipe and Dry Pipe Systems
Page 1 of 6 DECEMBER 2018 TFP460
IMPORTANT
Refer to Technical Data Sheet
TFP2300 for warnings pertaining to
regulatory and health information.
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 Dry Type Residential Recessed
Pendent Sprinklers (TY2235) are dry
type, decorative, fast response, fran-
gible bulb sprinklers designed for use
in residential occupancies such as
homes, apartments, dormitories, and
hotels.
The Series LFII Dry Type Residential
Recessed Pendent Sprinklers (TY2235)
are typically used for the following
situations:
• where sprinklers are required on dry
pipe systems that are exposed to
freezing temperatures; for example,
sprinkler drops from unheated
portions of buildings
• where sprinklers and/or a portion of
the connecting piping are exposed
to freezing temperatures; for
example, sprinkler drops from wet
systems into unheated areas
• where sprinklers are used on
systems that are seasonally drained
to avoid freezing; for example,
vacation areas
The Series LFII Dry Type Residen-
tial Recessed Pendent Sprinklers are
intended for use in residential sprinkler
systems for one- and two-family dwell-
ings and mobile homes per NFPA 13D;
residential sprinkler systems for resi-
dential occupancies up to and includ-
ing four stories in height per NFPA
13R; or, sprinkler systems for the resi-
dential portions of any occupancy per
NFPA 13.
The Series LFII Dry Type Residential
Recessed Pendent Sprinklers provide
flexibility in adjusting sprinklers to
the fixed pipe drops. The Recessed
Escutcheon provides 1/4 in. (6,4 mm)
of recessed adjustment or up to 1/2 in.
(12,7 mm) of total adjustment from the
flush mounting surface position.
The Series LFII Dry Type Residen-
tial Recessed Pendent Sprinklers are
designed with heat sensitivity and
water characteristics proven to help in
controlling residential fires and improv-
ing the chance for occupants to escape
or be evacuated.
Corrosion-resistant coatings, where
applicable, are utilized to extend the life
of copper alloy sprinklers beyond that
which would otherwise be obtained
when exposed to corrosive atmo-
spheres. Although corrosion-resistant
coated sprinklers have passed the
standard corrosion tests of the appli-
cable Approval agencies, the testing is
not representative of all possible cor-
rosive atmospheres. Consequently,
it is recommended that the end user
be consulted with respect to the suit-
ability of these coatings for any given
corrosive environment. The effects of
ambient temperature, concentration of
chemicals, and gas/chemical velocity
should be considered, as a minimum,
along with the corrosive nature of the
chemical to which the sprinklers will be
exposed.
Dry Pipe System Application
The Series LFII Residential Pendent
and Recessed Pendent Sprinklers
offers a laboratory approved option
for designing dry pipe residential sprin-
kler 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 Recessed
Pendent Sprinklers (TY2235) need
not be increased over the number of
design sprinklers (hydraulic design
area) as specified for wet pipe sprinkler
systems, as is accustomed for density/
area sprinkler systems designed per
NFPA 13.
Consequently, the Series LFII Resi-
dential Sprinklers 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. Non-water filled pipe
will permit options for areas sensitive
to freezing.
NOTICE
The Series LFII Dry Type Residential
Recessed Pendent Sprinklers (TY2235)
described herein must be installed and
maintained in compliance with this doc-
ument and the applicable standards
of the NATIONAL FIRE PROTECTION
ASSOCIATION (NFPA), 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 maintain-
ing their fire protection system and
devices in proper operating condi-
tion. Contact the installing contrac-
tor or product manufacturer with any
questions.

TFP460
Page 2 of 6
Sprinkler
Identification
Number (SIN)
TY2235
Technical
Data
Approvals
UL Listed
Certified to all requirements of
NSF/ANSI 61
Note: Sprinklers with a polyester finish
are UL Listed as corrosion-resistant
sprinklers.
See 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)
Inlet Thread Connections
1 in. NPT
ISO 7-R1
Sprinkler Temperature Ratings
155°F (68°C)
175°F (79°C) for wet pipe systems only
Finishes
Natural Brass, Signal White Polyester
Coated, or Chrome Plated
Order Lengths
Minimum: 3-3/4 in. (95,3 mm)
Maximum: 24 in. (609,6 mm)
Physical Characteristics
Inlet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brass
Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Brass
Yoke....................... Stainless Steel
Casing ....................Galvanized Steel
Insert . . . . . . . . . . . . . . . . . . . . . . . . . . . Bronze
Bulb Seat. . . . . . . . . . . . . . . . . . . Stainless Steel
Bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Glass
Compression Screw . . . . . . . . . . . . . . . . . .Brass
Deflector . . . . . . . . . . . . . . . . . . . . . . . . . . Brass
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Guide Tube . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Water Tube . . . . . . . . . . . . . . . . . Stainless Steel
Bushing . . . . . . . . . . . . . . . . . . . . . . . . . . . .Brass
Plug Spring . . . . . . . . . . . . . . . . . Stainless Steel
Sealing Assembly ..Beryllium Nickel w/TEFLON
Escutcheon . . . . . . . . . . . . . . . . . . .Carbon Steel
Operation
When the TYCO RAPID RESPONSE
Series LFII Dry Type Residential Sprin-
kler (TY2235) is in service, water is pre-
vented from entering the assembly by
the Plug with Sealing Assembly (Figure
1) in the Inlet of the Sprinkler.
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 to release the Bulb Seat.
The system’s water or air pressure
is then able to unseat the Plug with
Sealing Assembly. The Plug Spring
turns the Plug with Sealing Assembly
aside, allowing the sprinkler to activate
and flow water.
Design
Criteria
The TYCO RAPID RESPONSE Series
LFII Dry Type Residential Recessed
Pendent Sprinklers (TY2235) are UL
Listed for installation in accordance
with this section:
Residential Sprinkler Design Guide
When conditions exist that are outside
the scope of the criteria provided in
this section, refer to the technical
data sheet entitled Residential Sprin-
kler Design Guide (TFP490) for the
manufacturer’s recommendations
that may be acceptable to the local
authority having jurisdiction.
System Types
Wet pipe and dry pipe systems may be
utilized. Refer to Technical Data Sheet
TFP485 for the use of residential sprin-
klers 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 sprin-
kler flow rate are given in Tables A or
B 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.
The number of design sprinklers speci-
fied in NFPA 13D and 13R for wet pipe
systems is to be applied when design-
ing dry pipe systems.
Hydraulic Design
(NFPA 13)
For systems designed to NFPA 13, the
number of required design sprinklers is
the four most hydraulically demanding
sprinklers. The minimum required dis-
charge from each of the four sprinklers
is the greater of the following:
• ow rates listed in Table A or B as a
function of temperature rating and
the maximum allowable coverage
area.
• minimum discharge of 0.1 gpm/ft²
over the design area comprised
of the four most hydraulically
demanding sprinklers for the actual
coverage areas protected by four
sprinklers.
The number of design sprinklers speci-
fied in NFPA 13 for wet pipe systems is
to be applied when designing dry pipe
systems.
WATER
TUBE
VENT HOLE
GUIDE
TUBE
YOKE
INLETPLUG WITH
SEALING
ASSEMBLY
BUSHING
DEFLECTOR
BULB
SEAT
COMPRESSION
SCREW
3 mm BULB
FRAME
CASING
INLET
BAND
PLUG
SPRING
ESCUTCHEON
MOUNTING
PLATE
FIGURE 1
RAPID RESPONSE SERIES LFII DRY-TYPE RESIDENTIAL
PENDENT SPRINKLER ASSEMBLY

TFP460
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
155°F (68°C) Intermediate Temp Rating 175°F (79°C) Deflector to
Ceiling Installation Type
Minimum
Spacing
ft
Flow
GPM
(L/min)
Pressure
PSI
(bar)
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)
13
(49,2)
7.0
(0,48) Smooth
Ceiling:
1-1/4 in. to
1-1/2 in.
Beamed
Ceiling per
NFPA 13D
or 13R
Installed in
Beam:
1-1/4 in. to
1-1/2 in. below
bottom of
beam
Recessed 8
(2,4)
14 x 14
(4,3 x 4,3)
14
(4,3)
14
(52,9)
8.2
(0,57)
14
(52,9)
8.2
(0,57)
16 x 16
(4,9 x 4,9)
16
(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
(5,5)
18
(68,1)
13.5
(0,93)
18
(68,1)
13.5
(0,93)
20 x 20
(6,1 x 6 ,1)
20
(6,1)
21
(79,5)
18.4
(1,3)
21
(79,5)
18.4
(1,3)
Notes:
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. See Hydraulic Design
under the Design Criteria section.
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 Table A 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,c)
Ordinary Temp Rating
155°F (68°C) Deflector to
Ceiling Installation Type
Minimum
Spacing
ft
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
Ceiling:
1-1/4 in. to
1-1/2 in.
Beamed
Ceiling per
NFPA 13D
or 13R
Installed in
Beam:
1-1/4 in. to
1-1/2 in. below
bottom of
beam
Recessed 8
(2,4)
14 x 14
(4,3 x 4,3)
14
(4,3)
14
(52,9)
8.2
(0,57)
16 x 16
(4,9 x 4,9)
16
(4,9)
15
(56,8)
9.4
(0,65)
18 x 18
(5,5 x 5,5)
18
(5,5)
18
(68,1)
13.5
(0,93)
20 x 20
(6,1 x 6 ,1)
20
(6,1)
21
(79,5)
18.3
(1,3)
Notes:
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. See Hydraulic Design under the Design Criteria section.
c. For NFPA 13 residential applications, the greater of 0.1 gpm/ft2over the design area or the ow in accordance with the criteria in Table
B must be used.
TABLE A
WET PIPE SYSTEM
SERIES LFII RESIDENTIAL DRY-TYPE RECESSED PENDENT SPRINKLERS (TY2235)
NFPA 13D, 13R, AND 13 HYDRAULIC DESIGN CRITERIA
UL LISTED
TABLE B
DRY PIPE SYSTEM
SERIES LFII RESIDENTIAL DRY-TYPE RECESSED PENDENT SPRINKLERS (TY2235)
NFPA 13D, 13R, AND 13 HYDRAULIC DESIGN CRITERIA
UL LISTED

TFP460
Page 4 of 6
Dry Pipe System Water Delivery
When using the Series LFII Residential
Sprinklers (TY2235) in dry pipe sprin-
kler systems, the time for water deliv-
ery 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 applica-
ble for residential sprinklers as well as
with the obstruction criteria described
within the TYCO Technical Data Sheet
TFP490.
Operational Sensitivity
The sprinkler must be located relative
to the mounting surface as shown in
Figure 2.
Sprinkler Spacing
The minimum spacing between sprin-
klers is 8 ft (2,4 m). The maximum
spacing between sprinklers cannot
exceed the length of the coverage area
(Table A) being hydraulically calculated
(for example, a maximum of 12 ft for a
12 ft x 12 ft coverage area or 20 ft for a
20 ft x 20 ft coverage area.)
Sprinkler Fittings
The following fittings may be used:
• The 1 in. NPT outlet or run of a
malleable or ductile iron threaded
tee ttings that meet the dimen-
sional requirements of ANSI B16.3
(Class 150)
• The 1 in. NPT outlet or run of a cast
iron threaded tee ttings that meet
the dimensional requirements of
ANSI B16.4 (Class 125).
For dry pipe systems, only use the
side outlet of maximum 2-1/2 in.
size reducing tees when locating
the Series LFII Dry Type Residen-
tial Recessed Pendent Sprinklers
directly below the branch line. Oth-
erwise, use the configuration shown
in Figure 5 to assure complete
drainage from above the Series
LFII Sprinklers and the branch line.
Do not install the Series LFII
Dry Type Residential Recessed
Pendent Sprinklers into elbow fit-
tings. The Inlet of the sprinkler can
contact the interior of the elbow,
potentially damaging the Inlet seal.
Only use the configuration in Figure
4 where the sprinkler fitting and
water-filled pipe above the sprinkler
fitting are not subject to freezing and
where the length of the Series LFII
Sprinkler has the minimum exposure
length per Figure 6. See the Expo-
sure Length section and Table C.
• The 1 in. NPT outlet of a GRINNELL
Figure 730 Mechanical Tee in wet
pipe systems only
• The 1 in. NPT CPVC outlet of a
1 in. x 1 in. x 1in. NPT Sprinkler
Head Adapter Tee (P/N 80249) in
wet pipe systems only
• The 1 in. NPT CPVC outlet of a
1 in. x 1 in. NPT Female Adapter
(P/N 80145) in wet pipe systems
only
• The 1 in. NPT outlet of a 1 in. x 1 in.
x 1 in. NPT CPVC Sprinkler Head
Adapter Tee (P/N 80259) in either
wet or dry pipe systems
NOTICE
Do not install the Series LFII Dry Type
Residential Recessed Pendent Sprin-
klers into any other type fitting without
first consulting the Technical Services
Department. Failure to use the appro-
priate fitting may result in the following:
• failure of the sprinkler to operate
properly due to formation of ice over
the Inlet Plug or binding of the Inlet
Plug.
• insufficient engagement of the
inlet pipe threads with consequent
leakage.
Drainage
Branch, cross, and feed-main piping
connected to Series LFII Dry Type Res-
idential Recessed Pendent Sprinklers
and subject to freezing temperatures
must be pitched to allow proper drain-
age, in accordance with the minimum
requirements of the NATIONAL FIRE
PROTECTION ASSOCIATION for dry
pipe sprinkler systems.
Exposure Length
When using Series LFII Dry Type Resi-
dential Recessed Pendent Sprinklers in
wet pipe sprinkler systems to protect
areas subject to freezing temperatures,
use Table C to determine a sprinkler’s
appropriate exposed barrel length to
prevent water from freezing in the con-
necting pipes due to conduction. The
exposed barrel length measurement
must be taken from the face of the
sprinkler fitting to the surface of the
structure or insulation that is exposed
to the heated area. See Figure 6 for an
example.
Clearance Space
When connecting an area subject
to freezing and an area containing a
wet pipe sprinkler system, the clear-
ance space around the sprinkler barrel
of Dry Type Residential Recessed
Pendent Sprinklers must be sealed, in
accordance with the NATIONAL FIRE
PROTECTION ASSOCIATION. Due to
temperature differences between two
areas, the potential for the formation of
condensation in the sprinkler and sub-
sequent ice build-up is increased. If
this condensation is not controlled, ice
build-up can occur that might damage
the dry type sprinkler and/or prevent
proper operation in a re situation.
Ambient Temperature
Exposed to Discharge
End of Sprinkler
Temperatures for Heated Area(a)
40°F (4°C) 50°F (10°C) 60°F (16°C)
Minimum Exposed Barrel Length, Inches (mm)(b)
40°F (4°C) 0 0 0
30°F (-1°C) 0 0 0
20°F (-7°C) 4 (100) 0 0
10°F (-12°C) 8 (200) 1 (25) 0
0°F (-18°C) 12 (305) 3 (75) 0
-10°F (-23°C) 14 (355) 4 (100) 1 (25)
-20°F (-29°C) 14 (355) 6 (150) 3 (75)
-30°F (-34°C) 16 (405) 8 (200) 4 (100)
-40°F (-40°C) 18 (455) 8 (200) 4 (100)
-50°F (-46°C) 20 (510) 10 (255) 6 (150)
-60°F (-51°C) 20 (510) 10 (255) 6 (150)
Notes:
a. For protected area temperatures that occur between values listed above, use the next cooler temperature
b. These lengths are inclusive of wind velocities up to 30 mph (18,6 kph)
TABLE C
MINIMUM RECOMMENDED LENGTHS OF EXPOSED
SPRINKLER BARRELS IN WET PIPE SYSTEMS

TFP460
Page 5 of 6
kler. Re-adjust the position of the sprin-
kler fitting to suit.
Step 1. Install pendent sprinklers only
in the pendent position with the deflec-
tor parallel to the ceiling.
Step 2. With a non-hardening pipe-
thread sealant such as Teflon tape
applied to the inlet threads, hand-
tighten the sprinkler into the sprinkler
fitting.
Step 3. Wrench-tighten the sprin-
kler using a pipe wrench on the Inlet
Band or the Casing (Figure 1) or using
the W-Type 7 Sprinkler Wrench on
the Wrench Flat (Figure 3). Apply the
Wrench Recess of the W-Type 7 Sprin-
kler Wrench to the Wrench Flat.
Use of the Model DSB-2 Dry Sprin-
kler Boot, described in Technical Data
Sheet TFP591 and shown in Figures
4 through 6, can provide the recom-
mended seal.
Installation
The TYCO RAPID RESPONSE Series
LFII Dry Type Residential Recessed
Pendent Sprinklers must be installed
in accordance with this section:
General Instructions
The Series LFII Dry Type Residential
Recessed Pendent Sprinklers must
only be installed in fittings that meet
the requirements of the Design Criteria
section. For other important require-
ments regarding piping design and
sealing of the clearance space around
the Sprinkler Casing, see the Design
Criteria section.
Do not install any bulb type sprinkler
if the Bulb is cracked or there is a loss
of liquid from the Bulb. With the sprin-
kler held horizontally, a small air bubble
should be present. The diameter of the
air bubble is approximately 1/16 in.
(1,6 mm).
A leak-tight 1 in. NPT sprinkler joint
should be obtained by applying a min-
imum-to-maximum torque of 20 to
30 lb-ft (26,8 to 40,2 N∙m). Higher levels
of torque can distort the sprinkler Inlet
or Frame with consequent leakage or
impairment of the sprinkler.
Do not attempt to compensate for
insufficient adjustment in an Escutch-
eon Plate or Cover-Retainer Assembly
by under- or over-tightening the Sprin-
SIDE
OUTLET
PLUGGED
TO WET
SYSTEM
FITTING
(SEE DESIGN
CRITERIA
SECTION)
SPRINKLER
DSB-2
BOOT
HEATED
AREA
RUN
OUTLET
PLUGGED
TO DRY
SYSTEM
DSB-2
BOOT
FITTING
(SEE DESIGN
CRITERIA
SECTION)
SPRINKLER
AREA
SUBJECT
TO
FREEZING
(SEE DESIGN
CRITERIA
SECTION)
FACE OF
SPRINKLER
FITTING
LENGTH
EXPOSURE
DSB-2
BOOT
HEATED
AREA
2-1/4" DIA.
(57,2 mm)
1-3/8" ± 1/8"
(34,9 ± 3,2 mm)
2-7/8" DIA.
(73,0 mm)
IN 1/4" (6,4 mm)
3-3/4" to 24"
INCREMENTS
(95,3 to 609,6 mm)
ORDER LENGTHS:
SPRINKLER
FACE OF
FITTING
CEILING
FACE OF
CRITERIA SECTION)
(REFER TO DESIGN
SPRINKLER FITTING
WRENCH
RECESS
WRENCH
FLAT
PUSH WRENCH
IN TO ENSURE
ENGAGEMENT
WITH SPRINKLER
WRENCHING AREA
FIGURE 4
FITTING IN HEATED AREA
FIGURE 5
FITTING IN UNHEATED AREA
FIGURE 6
EXPOSURE LENGTH
FIGURE 2
RAPID RESPONSE SERIES LFII DRY-TYPE RESIDENTIAL PENDENT
SPRINKLER (TY2235) WITH RECESSED ESCUTCHEON
FIGURE 3
W-TYPE 7 RECESSED
SPRINKLER WRENCH

TFP460
Page 6 of 6
1400 Pennbrook Parkway, Lansdale, PA 19446 | Telephone [phone]
© 2019 Johnson Controls. All rights reserved. All specifications and other information shown were current as of document revision date and are subject to change without notice.
NATIONAL FIRE PROTECTION ASSOCIATION and NFPA are registered trademarks of National Fire Protection Association;
TEFLON is a registered trademark of DuPont
If sprinkler removal is necessary,
remove the sprinkler using the same
wrenching method noted above. Sprin-
kler removal is easier when a non-hard-
ening sealant was used and torque
guidelines were followed. After removal,
inspect the sprinkler for damage.
Care and
Maintenance
The TYCO RAPID RESPONSE Series
LFII Dry Type Residential Recessed
Pendent Sprinklers (TY2235) 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
systems from the proper authorities
and notify all personnel who may be
affected by this action.
Absence of a Recessed Escutch-
eon Plate to cover a clearance hole
can delay 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.
A Vent Hole is provided in the Bulb
Seat (Figure 1) to indicate if the Series
LFII Dry Type Residential Sprinkler is
remaining dry. Evidence of leakage
from the Vent Hole indicates poten-
tial leakage past the Plug with Sealing
Assembly and the need to remove
the sprinkler to determine the cause
of leakage (for example, an improper
installation or an ice plug). Close the
fire protection system control valve and
drain the system before removing the
sprinkler.
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.
Modified 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. Sprin-
klers 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. See the Installation
section for additional information.
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
ASSOCIATION, for example, NFPA
25, in addition to the standards of any
authorities having jurisdiction. Contact
the installing contractor or product
manufacturer with 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 name and Part Number
(P/N).
Pendent Sprinkler with
Recessed Escutcheon
Note: Unless otherwise indicated, see
Table D.
Specify: Series LFII Dry Type Residen-
tial Recessed Pendent Sprinkler, SIN
TY2235, Recessed Escutcheon, 4.9
K-factor, Temperature Rating (specify),
Sprinkler Finish (specify), Escutcheon
Finish (specify), Order Length (specify
value per Figure 2), Inlet Thread Size
(1 in. NPT or ISO 7-R 1), P/N (specify)
Separately Ordered
Sprinkler Wrench
Specify: W-Type 7 Sprinkler Wrench,
P/N 56-850-4-001
Separately Ordered
Escutcheon
Specify: Style 20 Recessed Escutch-
eon with (specify*) finish, P/N (specify*)
*Refer to Technical Data Sheet TFP770
P/N163 — XXX — X — XXX
Notes:
1. Use Prex "I" for ISO 7-R 1 Inlet Thread Connection (e.g., I-63-101-9-180)
2. Wet pipe system only
3. UL Listed as corrosion-resistant
ORDER LENGTH
(EXAMPLES)
055 5.50 in.
082 8.25 in.
180 18.00 in.
187 18.75 in.
240 24.00 in.
SPRINKLER
FINISH ESCUTCHEON FINISH
2NATURAL
BRASS
BRASS
PL ATED
4
SIGNAL WHITE
(RAL9003)
POLYESTER3
SIGNAL WHITE
(RAL9003)
POLYESTER
9CHROME
PL ATED
CHROME
PL ATED
TEMPERATURE
RATING
1155°F (68°C)
2175°F (79°C)2
SIN
10
PENDENT
WITH RECESSED
ESCUTCHEON
TY2235
TABLE D
RAPID RESPONSE SERIES LFII DRY-TYPE RESIDENTIAL RECESSED PENDENT SPRINKLERS (TY2235)
PART NUMBER SELECTION