Tyco Fire Product CENTRAL LD Manual de usuario

The owner is responsible for maintain-

ing their fire protection system and

devices in proper operating condition.

The installing contractor or sprinkler

manufacturer should be contacted

relative to any questions.

Sprinkler Identification Number

SIN C5153

Approvals

UL & C-UL Listed. FM & NYC Approved.

(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

3/4 inch NPT

Discharge Coefficient

K = 11.2 GPM/psi1/2 (161,3 LPM/bar1/2)

Temperature Ratings

155°F/68°C, 200°F/93°C & 286°F/121°C

Finishes

Sprinkler: Natural Brass

Physical Characteristics

The Model LD Large Drop Storage

Sprinklers utilize a dezincification

resistant (DZR) bronze frame and a 5

mm bulb. The sprinkler frame orifice is

sealed with a gasketed spring plate

(Belleville Seal) consisting of a

beryllium nickel disc spring that is

sealed on both its inside and outside

edges with a TeflonTM gasket. The

compression screw is bronze, and the

deflector is brass.

Tyco Fire Products --- www.centralsprinkler.com

451 North Cannon Avenue, Lansdale, Pennsylvania 19446 --- USA

Customer Service/Sales: Tel: (215) 362-0700 / Fax: (215) 362-5385

Technical Services: Tel: (800) 381-9312 / Fax: (800) 791-5500

Model LD

11.2 K-factor

Standard Response

Control Mode - Large Drop

Upright Glass Bulb Automatic Sprinkler

No. 3-6.0

General

Description

The Central Model LD, 11.2 K-factor,

Standard Response, Upright Large

Drop Storage Sprinklers are glass

bulb type automatic sprinklers. They

are intended for use with National Fire

Protection Association and Factory

Mutual Research Corporation "large

drop sprinkler" installation criteria for

the protection of high piled storage.

The Model LD Sprinklers can provide

a higher level of protection than

standard spray sprinklers and, in

some cases, they can provide an

economic advantage by eliminating in-

rack sprinklers.

Applications for the Model LD Sprin-

klers are expanding beyond the

current recognized installation

standards. For information regarding

research fire tests which may be

acceptable to an Authority Having

Jurisdiction (e.g., the protection of

class II commodity in a 40 foot freezer

using a double interlock preaction

system), please contact the Technical

Services Department.

Operation: The glass bulb contains a

fluid which expands when exposed to

heat. When the rated temperature is

reached, the fluid expands sufficiently

to shatter the glass bulb, which then

allows the sprinkler to activate and

flow water.

WARNING

The Model LD Large Drop Storage

Sprinklers described herein must be

installed and maintained in compli-

ance 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.

Technical

Data

CENTRAL LD 2-01

Large Drop

Upright

Sprinklers

OBSOLETE

CENTRAL

WRENCH

FLAT

2" (50.8 mm)

3/4" NPT

2-3/4

(69.9 mm)

ELEVATION VIEW

SPRINKLER

FRAME

DEFLECTOR

GLASS BULB

OPERATING

ELEMENT

GASKETED

SPRING PLATE

(BELLEVILLE

SEAL)

BUTTON

ASSEMBLY

COMPRESSION

SCREW

Figure 2 - Cross Section Model LD,

Large Drop Storage Sprinkler

Figure 1 - Model LD,

Large Drop Storage Sprinkler

Figure 3 - W-Type 3 Sprinkler Wrench (Part #1073)

OBSOLETE

Design

Criteria

The Model LD, 11.2 K-factor Large

Drop Storage Sprinklers are UL and

C-UL Listed and NYC Approved (MEA

466-92-E Vol. III), for use in

accordance with current NFPA 13

Standards for Large Drop Sprinklers.

The Model LD, 11.2 K-factor Large

Drop Storage Sprinklers are FM

Approved as "Control Mode Specific

Application Large Drop Sprinklers" for

use in accordance with the FM Loss

Prevention Data Sheets.

Installation

The Model LD Large Drop Storage

Sprinklers

must be installed in

accordance with the following instruc-

tions.

NOTES

Do not install any bulb type sprinkler if

the bulb is cracked or there is a loss

of liquid from the bulb. With the

sprinkler held horizontally, a small air

bubble should be present. The

diameter of the air bubble is approxi-

mately 1/16 inch (1,6 mm) for the

155

F/68

C to 3/32 inch (2,4 mm) for

the 286

F/141

C rating.

A leak tight 3/4 inch NPT sprinkler

joint should be obtained with a torque

of 10 to 20 ft.lbs. (13,4 to 26,8 Nm). A

maximum of 30 ft.lbs. (40,7 Nm) of

torque is to be used to install 3/4 inch

NPT sprinklers. Higher levels of

torque may distort the sprinkler inlet

with consequent leakage or impair-

ment of the sprinkler.

Step 1. The Model LD Large Drop

Storage Sprinklers must only be

installed in the upright position.

Step 2. With pipe thread sealant

applied to the pipe threads, wrench

tighten the LD by using only the

W-Type 3 Sprinkler Wrench (Ref.

Fig. 3). The W-Type 3 Sprinkler

Wrench is to be applied to the

sprinkler wrench flats only.

The Model LD Large Drop Stoage

Sprinklers

must be maintained and

serviced in accordance with the

following instructions.

NOTES

Before closing a fire protection system

main control valve for maintenance

work on the fire protection system it

controls, permission to shut down the

affected fire protection systems must

be obtained from the proper authori-

ties. 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 sprinklers must never be

shipped or stored where their tem-

peratures will exceed 100°F/38°C and

they must never be painted, plated,

coated or otherwise 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 - before, during, and after

installation. Sprinklers damaged by

dropping, striking, wrench twist/

slippage, or the like, must be re-

placed. Also, replace any sprinkler

that has a cracked bulb or that has

lost liquid from its bulb (Ref. Installa-

tion Section).

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 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.

It is recommended that automatic

sprinkler systems be inspected,

tested, and maintained by a qualified

Inspection Service.

Care &

Maintenance

OBSOLETE

Printed in U.S.A. 2-01

Flow Control

Tyco Fire



Products

Ordering Information: When placing

an order, indicate the full product name.

Please specify the quantity, model,

style, orifice size, temperature rating,

type of finish or coating, and sprinkler

wrench. Refer to price list for complete

listing of Part Numbers.

Teflon is a trademark of the DuPont Corp.

Ordering

Information

Products manufactured by Tyco Fire

Products 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 Tyco Fire

Products. No warranty is given for

products or components manufac-

tured by companies not affiliated by

ownership with Tyco Fire Products or

for products and components which

have been subject to misuse, im-

proper installation, corrosion, or which

have not been installed, maintained,

modified or repaired in accordance

with applicable Standards of the

National 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 repaired

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 connection with the sale

of products or parts of products. Tyco

Fire Products shall not be responsible

for sprinkler system design errors or

inaccurate or incomplete information

supplied by Buyer or Buyer's repre-

sentatives.

IN NO EVENT SHALL TYCO FIRE

PRODUCTS BE LIABLE, IN CON-

TRACT, TORT, STRICT LIABILITY

OR UNDER ANY OTHER LEGAL

THEORY, FOR INCIDENTAL,

INDIRECT, SPECIAL OR CONSE-

QUENTIAL 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 IMPLIED, INCLUDING WAR-

RANTIES OF MERCHANTABILITY

AND FITNESS FOR A PARTICULAR

PURPOSE.

Limited

Warranty

OBSOLETE

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