Tyco Fire Product Star LD-2 User manual

Std. Response - Std. Coverage
Upright, Pendent, and
Recessed Pendent Sprinklers
Model LD-2, K=2.8, 1/2"NPT
GENERAL DESCRIPTION
The Star Model LD-2, 2.8 K-Factor, Upright, Pendent,
and Recessed Pendent Sprinklers are standard response
- standard coverage, solder type spray sprinklers de-
signed for use in light hazard, commercial occupancies
such as churches, restaurants, hospitals, museums, of-
fices, etc.
The recessed version of the Model LD-2, intended for use
in areas with a finished ceiling, uses a two-piece #2085
Recessed Escutcheon. The #2085 provides 1/2 inch (12,7
mm) of recessed adjustment or up to 3/4 inch (19,1 mm)
of total adjustment from the flush pendent position. The
adjustment provided by the Recessed Escutcheon re-
duces the accuracy to which the fixed pipe drops to the
sprinklers must be cut.
As an option the Model LD-2 Pendent Sprinkler can be
used with the self-adjusting Starmist Recessed Escutch-
eondetailedinProductDataSheet1-1.2.91.TheStar-
mist Recessed Escutcheon provides up to 5/8 inch (15,9
mm) of vertical adjustment, and it is spring-loaded to com-
pensate for ceiling movement so as to help prevent un-
sightly gaps.
Wax and lead coatings are utilized to extend the life of
copper alloy sprinklers beyond that which would other-
wise be obtained when exposed to corrosive atmos-
pheres. Although wax and lead coated sprinklers have
passed the standard corrosion tests of the applicable ap-
proval agencies, the testing is not representative of all
possible corrosive atmospheres. Consequently, it is rec-
ommended that the end user be consulted with respect to
the suitability of these corrosion resistant coatings for any
given corrosive environment. The effects of ambient tem-
perature, concentration of chemicals, and gas/chemical
velocity, should be considered, as a minimum, along with
the corrosive nature of the chemical to which the sprin-
klers will be exposed.
WARNINGS
The Model LD-2 Sprinklers described herein must be in-
stalled and maintained in compliance with this document,
as well as with the applicable standards of the National
Fire Protection Association, in addition to the standards
of any other authorities having jurisdiction. Failure to do
so may impair the integrity of these devices.
The owner is responsible for maintaining their fire protec-
tion system and devices in proper operating condition.
The installing contractor or sprinkler manufacturer should
be contacted relative to any questions.
OPERATION
A bronze tube sealed by two stainless steel balls holds a
fusible alloy. When the rated temperature is reached, the
alloy melts, the balls are forced toward each other releas-
ing the tension mechanism, which then allows the sprin-
kler to activate and flow water.
TECHNICAL DATA
Approvals
UL and ULC Listed. NYC Approved.
(Refer to Table A. The approvals apply only to the service
conditions indicated in the Design Criteria section.)
Maximum Working Pressure
175 psi (12,1 bar)
Pipe Thread Connection
1/2 inch NPT
Discharge Coefficient
K=2.8GPM/psi
1/2 (40,3 LPM/bar1/2)
Temperature Ratings
135°F/57°C, 165°F/74°C, 212°F/100°C,
280°F/138°C, or 360°F/182°C
(Refer to Table A)
Finishes
Sprinkler: White Polyester, Black Polyester,
Chrome Plated, Natural Brass, Wax Coated, Lead Coated,
Wax over Lead Coated (Refer to Table A)
Recessed Escutcheon: White Coated, Black Coated,
Chrome Plated, Bright Brass Plated
(Other colors are available on request.)
Physical Characteristics (Ref. Figure 1)
The Model LD-2 utilizes a dezincification resistant (DZR)
bronze frame with a brass deflector. The waterway is
sealed with Teflon  gasketed brass button, and the fusible
assembly is constructed of bronze and stainless steel
components.
SIN S1818
Upright
SIN S1819
Pendent
Shown With
#2085 Recessed
Escutcheon

DuPont Registered Trademark
Customer Service/Sales: Tel: [phone] • Fax: [phone]
Technical Services: Tel: [phone] • Fax: [phone]
1-1.2.70
TYCO FIRE PRODUCTS
OBSOLETE

DESIGN CRITERIA
The 2.8 K-Factor, Model LD-2 Upright, Pendent, and Re-
cessed Pendent Sprinklers are intended for fire protection
systems designed in accordance with the standard instal-
lation rules recognized by the applicable Listing or Ap-
proval agency (e.g., UL Listing is based on NFPA 13 re-
quirements). With the exception of a Starmist Recessed
Escutcheon, only the #2085 Recessed Escutcheon de-
scribed herein is to be used for recessed installations.
INSTALLATION
The 2.8 K-Factor, Model LD-2 Sprinklers must be in-
stalled in accordance with the following instructions:
NOTES
A leak tight 1/2 inch NPT sprinkler joint should be ob-
tained with a torque of 7 to 14 ft.lbs. (9,5 to 19,0 Nm). A
maximum of 21 ft. lbs. (28,5 Nm) of torque may be used
to install sprinklers with 1/2 NPT connections. Higher lev-
els of torque may distort the sprinkler inlet with conse-
quent leakage or impairment of the sprinkler.
Do not attempt to make-up for insufficient adjustment in
the escutcheon plate by under- or over-tightening the
sprinkler. Readjust the position of the sprinkler fitting to
suit.
The Model LD-2 Pendent and Upright Sprinklers must
be installed in accordance with the following instructions.
1. Pendent sprinklers are to be installed on the pendent
position, and upright sprinklers are to be installed in the
upright position.
2. With pipe thread sealant applied to the pipe threads, hand
tighten the sprinkler into the sprinkler fitting.
3. Tighten the sprinkler into the sprinkler fitting using only the
W-Type 9 Sprinkler Wrench (Ref. Figure 3), except that an
8 or 10 inch adjustable Crescent wrench is to be used for
wax coated sprinklers. With reference to Figure 1, the
W-Type 9 Sprinkler Wrench is to be applied to the sprinkler
wrenching area, and the adjustable Crescent wrench is to
be applied to the wrenching flanges.
When installing wax coated sprinklers with the adjustable
Crescent wrench, additional care needs to be exercised to
prevent damage to the wax coating on the sprinkler
wrenching flanges or frame arms and, consequently, ex-
posure of bare metal to the corrosive environment. The
jaws of the wrench should be opened sufficiently wide to
pass over the wrenching flanges without damaging the
wax coating. Before wrench tightening the sprinkler, the
jaws of the wrench are to be adjusted to just contact the
sprinkler wrenching flanges. After wrench tightening the
sprinkler, loosen the wrench jaws before removing the
wrench.
After installation, the sprinkler wrenching flanges and
frame arms must be inspected and the wax coating re-
touched (repaired) whenever the coating has been dam-
aged and bare metal is exposed. The wax coating on the
wrenching flanges can be retouched by gently applying a
heated 1/8 inch diameter steel rod to the areas of wax that
have been damaged, to smooth it back over areas where
bare metal is exposed.
NOTES
Only retouching of the wax coating applied to the wrenching
STAR SPRINKLER
Page 2 1-1.2.70
FIGURE 2
2.8 K-FACTOR, MODEL LD-2 PENDENT
SPRINKLER WITH #2085 RECESSED ESCUTCHEON
FIGURE 1
2.8 K-FACTOR, MODEL LD-2
STANDARD RESPONSE
PENDENT AND UPRIGHT SPRINKLERS
SPRINKLER
FACE OF
FITTING
SURFACE
MOUNTING
1/8"
(3.2 mm)
1-1/4" (31.8 mm)
1-3/4" (44.5 mm)
1/4" (6.4 mm)
3/4" (19.1 mm)
5/8±1/4"
(15.9±6.4 mm)
CLOSURE
PLATE
MOUNTING
LD-2
(57.2 mm)
2-1/4" DIA.
(73.0 mm)
2-7/8" DIA.
FLANGES
WREN
C
HIN
G
PLATE
SEATING
1/2" NPT
ES
C
UT
C
HE
O
N
SURFACE
2"
(50.8 mm)
(66.7 mm)
2-5/8"
7/16" (11.1 mm)
NOMINAL
M
A
KE
-
IN
WREN
C
HIN
G
AREA
WREN
C
H
RECESS
WRENCH
RECESS
FIGURE 3
W-TYPE 9 (#1849) SPRINKLER WRENCH
AND
W-TYPE 10 (#1948) RECESSED SPRINKLER WRENCH
#1849
#1948
OBSOLETE

flanges and frame arms is permitted, and the retouching is to
be performed only at the time of the initial sprinkler installation.
The steel rod should be heated only to the point at which it
can begin to melt the wax, and appropriate precautions need
to be taken, when handling the heated rod, in order to prevent
the installer from being burned.
If attempts to retouch the wax coating with complete cover-
age are unsuccessful, additional wax can be ordered in the
form of a wax stick (the end of which is color coded). Only the
correct color coded wax is to be used, and retouching of
wrenching flanges and frame arms is only permitted at the
time of initial sprinkler installation. With the steel rod heated
as previously described, touch the rod to the area requiring
additional wax with the rod angled downward, and then touch
the wax stick to the rod approximately one-half inch away from
the area requiring retouching.The wax will melt and run down
onto the sprinkler.
The Model LD-2 Recessed Pendent and Sprinklers
must be installed in accordance with the following instruc-
tions.
A. After installing the #2085 Mounting Plate over the sprinkler
threads and with pipe thread sealant applied to the pipe
threads, hand tighten the sprinkler into the sprinkler fitting.
B. Tighten the sprinkler into the sprinkler fitting using only the
W-Type 10 Recessed Sprinkler Wrench (Ref. Figure 3).
With reference to Figure 1, the W-Type 10 Recessed
Sprinkler Wrench is to be applied to the sprinkler wrench-
ing flanges.
C. After the ceiling has been installed or the finish coat has
been applied, slide on the #2085 Closure over the
Model LD-2 Sprinkler and push the Closure over the
Mounting Plate until its flange comes in contact with the
ceiling.
STAR SPRINKLER
1-1.2.70 Page 3
SPRINKLER FINISH
Temperature
Rating
Frame
Color Code
Natural
Brass
Chrome
Plated
Wax
Coated
135°F/57°C
165°F/74°C
212°F/100°C
Unpainted
White
Unpainted
Pendent (S1819) and Upright (S1818)
Notes:
1. Listed by Underwriters Laboratories, Inc.
2. Listed by Underwriters’ Laboratories of Canada.
TABLE A
LABORATORY LISTINGS AND APPROVALS
Wax Over
Lead Coated
280°F/138°C Blue
360°F/182°C Red
Lead
Coated
Polyester
Coated
(All Colors)
SPRINKLER FINISH
Recessed (S1819) With #2085 Escutcheon
Temperature
Rating
135°F/57°C
165°F/74°C
212°F/100°C White
Unpainted
Unpainted
Frame
Color Code
Natural
Brass
Chrome
Plated
Polyester
Coated
(All Colors)
1, 2
N/A
1
1 N/A
1, 2
OBSOLETE

CARE AND MAINTENANCE
Model LD-2 Sprinklers must be maintained and serviced
in accordance with the following instructions:
NOTE
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 pro-
tection systems must be obtained from the proper authori-
ties and all personnel who may be affected by this action
must be notified.
Absence of an escutcheon, which is used to cover a clear-
ance hole, may delay the time to sprinkler operation in a
fire situation.
Sprinklers which are found to be leaking or exhibiting vis-
ible signs of corrosion must be replaced.
Automatic sprinklers must never be shipped or stored
where their temperature will exceed 100°F/38°C and they
must never be painted, plated, coated, or otherwise al-
tered after leaving the factory.
Care must be exercised to avoid damage to the sprinklers
— before, during, and after installation. Sprinklers dam-
aged by dropping, striking, wrench twist/slippage or the
like, must be replaced.
Frequent visual inspections are recommended to be in-
itially performed for wax and/or lead coated sprinklers, af-
ter the installation has been completed, to verify the integ-
rity of the wax and/or lead coating. Thereafter, annual
inspections per NFPA 25 should suffice; however, instead
of inspecting from the floor level, a random sampling of
close-up visual inspections should be made, so as to bet-
ter determine the exact sprinkler condition and the long
term integrity of the wax and/or lead coating, as it may be
affected by the corrosive conditions present.
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 appli-
cable standards of the National Fire Protection Associa-
tion (e.g., NFPA 25), in addition to the standards of any
other authorities having jurisdiction. The installing contrac-
tor or sprinkler manufacturer should be contacted relative
to any questions.
It is recommended that automatic sprinkler systems be in-
spected, tested, and maintained by a qualified Inspection
Service.
LIMITED WARRANTY
Products manufactured by Tyco Fire Products are war-
ranted 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 Tyco Fire Products. No warranty
is given for products or components manufactured by
companies not affiliated by ownership with Tyco Fire Prod-
ucts or for products and components which have been
subject to misuse, improper installation, corrosion, or
which have not been installed, maintained, modified or re-
paired in accordance with applicable Standards of the Na-
tional Fire Protection Association, and/or the standards of
any other Authorities Having Jurisdiction. Materials found
by Tyco Fire Products to be defective shall be either re-
paired or replaced, at Tyco Fire Products’ sole option.
Tyco Fire Products neither assumes, nor authorizes any
person to assume for it, any other obligation in connec-
tion with the sale of products or parts of products. Tyco
Fire Products shall not be responsible for sprinkler sys-
tem design errors or inaccurate or incomplete information
supplied by Buyer or Buyer’s representatives.
IN NO EVENT SHALL TYCO FIRE PRODUCTS BE LI-
ABLE, IN CONTRACT, TORT, STRICT LIABILITY OR UN-
DER ANY OTHER LEGAL THEORY, FOR INCIDENTAL,
INDIRECT, SPECIAL OR CONSEQUENTIAL DAMAGES,
INCLUDING BUT NOT LIMITED TO LABOR CHARGES,
REGARDLESS OF WHETHER TYCO FIRE PRODUCTS
WAS INFORMED ABOUT THE POSSIBILITY OF SUCH
DAMAGES, AND IN NO EVENT SHALL TYCO FIRE
PRODUCTS’ LIABILITY EXCEED AN AMOUNT EQUAL
TO THE SALES PRICE.
THE FOREGOING WARRANTY IS MADE IN LIEU OF
ANY AND ALL OTHER WARRANTIES EXPRESS OR IM-
PLIED, INCLUDING WARRANTIES OF MERCHANT-
ABILITY AND FITNESS FOR A PARTICULAR PUR-
POSE.
ORDERING PROCEDURE
Please Specify:
2.8 K-Factor, Model LD-2
Standard Response Upright Sprinkler (#1818)
2.8 K-Factor, Model LD-2
Standard Response Pendent Sprinkler (#1819)
Recessed Escutcheon (#2085)
W-Type 9 Sprinkler Wrench (#1849)
W-Type 10 Recessed Sprinkler Wrench (#1948)
Wax Sticks (for retouching wrench damaged wax coating)
Red for 165°F (#560651155)
Blue for 212°F and 280°F (#560651286)
Each wax stick is suitable for retouching up to twenty-five
sprinklers.
Refer to Price List for for complete listing of Part Num-
bers with respect to temperature ratings, sprinkler fin-
ishes, recessed escutcheon finishes, etc.
STAR SPRINKLER
Page 4 1-1.2.70
7071 S. 13th Street • Suite 103
Oak Creek, WI 53154
www.starsprinkler.com
PRINTED IN U.S.A. 3-01
OBSOLETE