Tyco RAPID RESPONSE Series 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 8 APRIL 2013 TFP460
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 dam-
age 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.
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 por-
tions 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 sprin-
kler systems for one- and two-family
dwellings and mobile homes per NFPA
13D; residential sprinkler systems for
residential occupancies up to and in-
cluding 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
exibility in adjusting sprinklers to the
xed pipe drops. The Recessed Es-
cutcheon 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 mounting surface position.
The Series LFII Dry Type Residential
Recessed Pendent Sprinklers are de-
signed with heat sensitivity and water
characteristics proven to help in con-
trolling residential res and improving
the chance for occupants to escape or
be evacuated.
Dry Pipe System Application
The Series LFII Residential Pendent
and Recessed Pendent Sprinklers of-
fers 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 Recessed
Pendent Sprinklers (TY2235) need not
be increased over the number of de-
sign sprinklers (hydraulic design area)
as specied for wet pipe sprinkler sys-
tems, 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 lled pipe in addition to not
having to increase the number of de-
sign 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 Dry Type Residential
Recessed Pendent Sprinklers (TY2235)
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 stan-
dards of any authorities having juris-
diction. Failure to do so may impair the
performance of these devices.
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
Identification
Number (SIN)
TY2235

WATER
TUBE
VENT HOLE
GUIDE
TUBE
YOKE
SCREW
INLET
SEALING
PLUG WITH
BUSHING
DEFLECTOR
BULB
SPRING
COMPRESSION
SEAT
ASSEMBLY
3 mm BULB
FRAME
CASING
INLET
BAND
PLUG
FIGURE 1
RAPID RESPONSE SERIES LFII DRY-TYPE RESIDENTIAL
PENDENT SPRINKLER ASSEMBLY
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
FIGURE 2
RAPID RESPONSE SERIES LFII DRY-TYPE RESIDENTIAL
PENDENT SPRINKLER (TY2235) WITH RECESSED ESCUTCHEON
RECESS
WRENCH
FLAT
WRENCH
WITH SPRINKLER
ENGAGEMENT
IN TO ENSURE
WRENCHING AREA
PUSH WRENCH
FIGURE 3
W-TYPE 7 RECESSED
SPRINKLER WRENCH
TFP460
Page 2 of 8
Technical
Data
Approvals
UL Listed
For details on approval, refer to the De-
sign Criteria section.
Maximum Working Pressure
175 psi (12,1 bar)
Discharge Coefficient
K = 4.9 GPM/psi1/2 (70,6 LPM/bar1/2)
Inlet Thread Connections
1 inch 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
Chrome-Plated
Order Lengths
Minimum: 3-3/4 inches (95,3 mm)
Maximum: 24 inches (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
Deector ................. 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

TFP460
Page 3 of 8
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 uid that
expands when exposed to heat. When
the rated temperature is reached, the
uid expands sufciently 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 Seal-
ing Assembly. The Plug Spring turns
the Plug with Sealing Assembly aside,
allowing the sprinkler to activate and
ow 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 out-
side 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 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 rate are given in Tables
A or B as a function of temperature rat-
ing and the maximum allowable cov-
erage 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 ap-
plied when designing 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/ft2over
the design area comprised of the four
most hydraulically demanding sprin-
klers for the actual coverage areas
protected by four sprinklers.
The number of “design sprinklers”
specied in NFPA 13 for wet pipe sys-
tems is to be applied when designing
dry pipe systems.
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 applicable
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 feet (2,4 m). The maximum
spacing between sprinklers cannot ex-
ceed 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.)
Sprinkler Fittings
The following ttings may be used:
• The 1 inch NPT outlet or run of a mal-
leable or ductile iron threaded tee
ttings that meet the dimensional re-
quirements of ANSI B16.3 (Class 150)
• The 1 inch 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 inch
size reducing tees when locating
the Series LFII Dry Type Residen-
tial Recessed Pendent Sprinklers
directly below the branch line. Oth-
erwise, use the conguration 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 Pen-
dent Sprinklers into elbow ttings.
The Inlet of the sprinkler can con-
tact the interior of the elbow, po-
tentially damaging the Inlet seal.
Only use the conguration in Fig-
ure 4 where the sprinkler tting and
water-lled pipe above the sprinkler
tting are not subject to freezing and
where the length of the Series LFII
Sprinkler has the minimum exposure
length per Figure 6. Refer to the Ex-
posure Length section and Table C.
• The 1 inch NPT outlet of a GRINNELL
Figure 730 Mechanical Tee in wet pipe
systems only
• The 1 inch NPT CPVC outlet of a 1” x 1”
x 1” NPT Sprinkler Head Adapter Tee
(P/N 80249) in wet pipe systems only
•The 1 inch NPT CPVC outlet of a 1” x
1” NPT Female Adapter (P/N 80145)
in wet pipe systems only
• The 1 inch NPT outlet of a 1” x 1” x 1”
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.
• insufcient engagement of the in-
let 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 Pro-
tection Association for dry pipe sprin-
kler 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

TFP460
Page 4 of 8
must be taken from the face of the
sprinkler tting to the surface of the
structure or insulation that is exposed
to the heated area. Refer to 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 bar-
rel of Dry Type Residential Recessed
Pendent Sprinklers must be sealed,
in accordance with the National Fire
Protection Association. Due to tem-
perature differences between two
areas, the potential for the formation
of condensation in the sprinkler and
subsequent 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.
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.
SIDE
OUTLET
PLUGGED
TO WET
SYSTEM
FITTING
(SEE DESIGN
CRITERIA
SECTION)
SPRINKLER
DSB-2
BOOT
HEATED
AREA
FIGURE 4
FITTING IN HEATED AREA
RUN
OUTLET
PLUGGED
TO DRY
SYSTEM
DSB-2
BOOT
FITTING
(SEE DESIGN
CRITERIA
SECTION)
SPRINKLER
AREA
SUBJECT
TO
FREEZING
FIGURE 5
FITTING IN UNHEATED AREA
(SEE DESIGN
CRITERIA
SECTION)
FACE OF
SPRINKLER
FITTING
LENGTH
EXPOSURE
DSB-2
BOOT
HEATED
AREA
FIGURE 6
EXPOSURE LENGTH
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 ttings 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, refer to the De-
sign 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 inch
(1,6 mm).
A leak-tight 1 inch NPT sprinkler joint
should be obtained by applying a min-
imum-to-maximum torque of 20 to 30
ft.-lbs. (26,8 to 40,2 Nm). 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
insufcient adjustment in an Escutch-
eon Plate or Cover-Retainer Assem-
bly by under- or over-tightening the
Sprinkler. Re-adjust the position of the
sprinkler tting to suit.
Step 1. Install pendent sprinklers only
in the pendent position with the deec-
tor parallel to the ceiling.
Step 2. With a non-hardening pipe-
thread sealant such as Teon tape ap-
plied to the inlet threads, hand-tighten
the sprinkler into the sprinkler tting.
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.
If sprinkler removal is necessary, re-
move the sprinkler using the same
wrenching method noted above.
Sprinkler removal is easier when a non-
hardening sealant was used and torque
guidelines were followed. After remov-
al, inspect the sprinkler for damage.

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 to 1-1/2
inches
Beamed
Ceiling per
NFPA 13D
or 13R
Installed in
Beam
1-1/4 to 1-1/2
inches 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
(6 8,1)
13.5
(0,93)
18
(6 8,1)
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)
(a) For coverage area dimensions less than or between those indicated, use the minimum required ow for the next highest coverage area for which hydrau-
lic 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 or the ow in accordance with the criteria in Table A 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
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 to 1-1/2
inches
Beamed
Ceiling per
NFPA 13D
or 13R
Installed in
Beam
1-1/4 to 1-1/2
inches 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
(6 8,1)
13.5
(0,93)
20 x 20
(6 ,1 x 6 ,1)
20
(6 ,1)
21
(79,5)
18.3
(1,3)
(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 or the ow in accordance with
the criteria in Table B must be used.
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 5 of 8

TFP460
Page 6 of 8
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 re protection system
main control valve for maintenance
work on the re protection system that
it controls, obtain permission to shut
down the affected re protection sys-
tems from the proper authorities and
notify all personnel who may be af-
fected by this action.
Absence of a Recessed Escutch-
eon Plate to cover a clearance hole
can delay sprinkler operation in a re
situation.
The owner must assure that the sprin-
klers are not used for hanging any ob-
jects and that the sprinklers are only
cleaned by means of gently dusting
with a feather duster; otherwise, non-
operation in the event of a re 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 Seal-
ing 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
re protection system control valve and
drain the system before removing the
sprinkler.
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 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 dam-
age to the sprinklers - before, during,
and after installation. Sprinklers dam-
aged 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 in-
spection, testing, and maintenance of
their re 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 authorities hav-
ing jurisdiction. Contact the installing
contractor or sprinkler manufacturer
regarding any questions.
Automatic sprinkler systems are rec-
ommended to be inspected, tested,
and maintained by a qualied Inspec-
tion Service in accordance with local
requirements and/or national codes.
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 7 of 8
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
Specify the following information:
• Series LFII Dry Type Residential Sprin-
kler (TY2235),
•with Recessed Escutcheon,
•4.9 K-factor,
• Temperature Rating of: 155°F (68°C)
or 175°F (79°C),
•Sprinkler Finish (value from Table C),
• Recessed Escutcheon Finish (value
from Table C),
• Order Length (value from Figure 2), and
• Inlet Thread Connection (1 inch NPT
or ISO 7-R1).
•P/N (from Table D).
TABLE D
RAPID RESPONSE SERIES LFII DRY-TYPE RESIDENTIAL RECESSED PENDENT SPRINKLERS (TY2235)
PART NUMBER SELECTION
P/N* 63 – X XX – X – XX X
SIN
10 Pendent
w/ Recessed Escutcheon
TY2235
(Figure 2)
ORDER LENGTH
(EXAMPLES)
055 5.50”
082 8.25”
180 18.00”
187 18.75”
240 24.00”
SPRINKLER
RECESSED
ESCUTCHEON
2Natural Brass Brass Plated
4Signal White
(RAL9003)
Signal White
(RAL9003)
9Chrome Plated Chrome
TEMPERATURE RATING
1155°F (68°C)
2175°F (79°C)
Wet Pipe Systems Only
Note
* Use Prex “I” for ISO 7-R1 Inlet Thread Connection;
for example, I-63-101-9-180.
Separately Ordered
Sprinkler Wrench
Specify: W-Type 7 Sprinkler Wrench
(Figure 2), P/N 56-850-4-001.
Separately Ordered
Escutcheon
Specify: Style 20 Recessed Escutch-
eon with (specify*) nish, P/N (specify*).
*Refer to Technical Data Sheet TFP770.