CO2 Fire Suppression System (Engine Room) TP 4571_555_A.pdf

TP: 4571

(HM&E MANUAL)

TECHNICAL MANUAL

CO2 FIRE SUPRESSION SYSTEM

(ENGINE ROOM)

87’ WPB CLASS CUTTERS

DISTRIBUTION STATEMENT D. – Distribution authorized to Department of Homeland Security, DoD and their contractors to protect publications required for official use or for administrative or operational purposes only;

determined on 17 March 2003. Other requests for this document shall be referred to Commander, USCG Surfaces Forces Logistics Center, ESD – Tech Info Mgmt Br, 2401 Hawkins Point Road, Baltimore, MD 21226.

WARNING – This document contains technical data whose export is restricted by the Arms Export Control Act (Title 22, U.S.C., Sec 2751, et seq.) or the Export Administration Act of 1979 (Title 50, U.S.C., App. 2401 et seq.), as amended. Violations of these export laws are subject to severe criminal penalties.

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PUBLISHED UNDER AUTHORITY OF THE U.S. COAST GUARD

SWBS 555 DATE: 17 March 2003

Department of Homeland Security

UNITED STATES

COAST GUARD

LETTER OF PROMULGATION

C02 FIRE SUPPRESSION SYSTEM (ENGINE ROOM)

SWBS 555

UNITED STATES COAST GUARD

87’ COASTAL PATROL BOAT

1. PURPOSE: This letter promulgates Technical Publication 4571 for the C02 Fire Suppression System (Engine Room) on board the 87’ Coastal Patrol Boats.

2. PUBLICATION AFFECTED: Technical Publication 4571 (No Stock Number)

3. INFORMATION: In lieu of the traditional Manufacturer’s Instruction Books with multiple subsections, the

Technical Publications for the 87’ CPB were distributed to the boats as individual manuals with specific Technical Publication Numbers. The latest electronic copies were provided to Engineering Logistics Center in late January 2003 to be promulgated and to become part of the Naval Engineering Technical Information Management System Database (NE-TIMS). Please note that stock is not maintained for this Technical Publication. Technical Publication 4571 may be accessed and printed from NE-TIMS at http://10.38.16.120:1088/NE-Tims/index.html.

4. ACTION:

a. Engineering Officers for 87’ CPBs: Upon receipt, place this letter of Promulgation in front of the copy of Technical publication 4571 that was provided to you when the vessel was commissioned. Augment your unit’s technical publication library with TP 4571.

b. Check this publication to ensure that it is complete. Report any discrepancies to this command, attention

(ELC-02T). Please provide a brief description of the discrepancy, and recommended remedy, such as marked up pages or copies of new sections to be added. Please continue to submit corrections to this publication as they are identified. Your personal efforts to update technical publications help both maintenance and support personnel to do a better job of maintaining our engineering systems and equipment.

C. E. BLACK

By direction

Enclosure: (1) Technical Publication 4571

Distribution: (See Page 2)

Commandant United States Coast Guard Engineering Logistics Center

2401 Hawkins Point Road Baltimore, Maryland 21226 Staff Symbol: (02T) Phone: ( 410 )762-6909 Fax: ( 410 )762-6898 Email: Cblack@elcbalt.uscg.mil

March 17, 2003

DISTRIBUTION LIST

UNIT PROJECT CODE COPIES OPFAC

MLCPAC VS 2 Z75170

MLCLANT VAD 2 Z75130

NESU ALAMEDA 1 Z51252

NESU SEATTLE 1 Z51253

NESU HONOLULU 1 Z51254

NESU BOSTON 1 Z51255

NESU CHARLESTON 1 Z51262

NESU PORTSMOUTH 1 Z51257

NESU MIAMI 1 Z51258

NESU NEW ORLEANS 1 Z51259

NESU CHARLESTON 1 Z51262

RES TRA CEN (NCT) 1 Z63100

RES TRA CEN (TEW) 1 Z63100

CG YARD (IND) 1 Z31800

GRU ATLANTIC CITY 2 Z36219

GRU CHARLESTON 2 Z36289

GRU CORPUS CHRISTI 2 Z36243

GRU FT. MACON 2 Z36234

GRU GALVESTON 2 Z36243

GRU HAMPTON ROADS 2 Z36235

GRU HONOLULU 2 Z36280

GRU HUMBOLT BAY 2 Z36266

GRU LONG ISLAND SOUND 2 Z36229

GRU LA/ LONG BEACH 2 Z36263

GRU MAYPORT 2 Z36237

GRU MIAMI 2 Z36295

GRU MOBILE 2 Z36239

GRU MORICHES 2 Z36225

GRU NEW ORLEANS 2 Z36240

GRU PORT ANGELES 2 Z36277

GRU SAN DIEGO 2 Z36261

GRU SAN FRANCISCO 2 Z36269

GRU SEATTLE 2 Z36278

GRU SOUTHWEST HARBOR 2 Z36217

GRU ST. PETERSBURG 2 Z36293

GRU WOODS HOLE 2 Z36215

ESD CAPE MAY 1 Z54030

ESD CHARLESTON 1 Z54410

ESD CORPUS CHRISTI 1 Z54350

ESD GALVESTON 1 Z54340

ESD MAYPORT 1 Z54430

ESD MIAMI 1 Z54470

ESD MOBILE 1 Z54320

ESD MORICHES 1 Z54180

ESD NEW HAVEN 1 Z54170

ESD NEW ORLEANS 1 Z54310

ESD OXNARD 1 Z53730

ESD PANAMA CITY 1 Z54330

ESD PORT ANGELES 1 Z53410

ESD PORTSMOUTH 1 Z54080

ESD SOUTHWEST HARBOR 1 Z54150

ESD ST. PETERSBURG 1 Z54420

DISTRIBUTION LIST (continued)

ESU ALAMEDA 1 Z53700

ESU BOSTON 1 Z54100

ESU HONOLULU 1 Z53500

USCGC BARRACUDA (WPB 87301) 1 Z13301

USCGC HAMMERHEAD (WPB 87302) 1 Z13302

USCGC MAKO (WPB 87303) 1 Z13303

USCGC MARLIN (WPB 87304) 1 Z13304

USCGC STINGRAY (WPB 87305) 1 Z13305

USCGC DORADO (WPB 87306) 1 Z13306

USCGC OSPREY (WPB 87307) 1 Z13307

USCGC CHINOOK (WPB 87308) 1 Z13308

USCGC ALBACORE (WPB 87309) 1 Z13309

USCGC TARPON (WPB 87310) 1 Z13310

USCGC COBIA (WPB 87311) 1 Z13311

USCGC HAWKSBILL (WPB 87312) 1 Z13312

USCGC CORMORANT (WPB 87313) 1 Z13313

USCGC FINBACK (WPB 87314) 1 Z13314

USCGC AMBERJACK (WPB 87315) 1 Z13315

USCGC KITTIWAKE (WPB 87316) 1 Z13316

USCGC BLACKFIN (WPB 87317) 1 Z13317

USCGC BLUEFIN (WPB 87318) 1 Z13318

USCGC YELLOWFIN (WPB 87319) 1 Z13319

USCGC MANTA (WPB 87320) 1 Z13320

USCGC COHO (WPB 87321) 1 Z13321

USCGC KINGFISHER (WPB 87322) 1 Z13322

USCGC SEAHAWK (WPB 87323) 1 Z13323

USCGC STEELHEAD (WPB 87324) 1 Z13324

USCGC BELUGA (WPB 87325) 1 Z13325

USCGC BLACKTIP (WPB 87326) 1 Z13226

USCGC PELICAN (WPB 87327) 1 Z13327

USCGC RIDLEY (WPB 87328) 1 Z13228

USCGC COCHITO (WPB 87329) 1 Z11329

USCGC MANOWAR (WPB 87330) 1 Z13330

USCGC MORAY (WPB 87331) 1 Z13331

USCGC RAZORBILL (WPB 87332) 1 Z13332

USCGC ADELIE (WPB 87333) 1 Z13333

USCGC GANNET (WPB 87334) 1 Z13334

USCGC NARWHAL (WPB 87335) 1 Z87335

USCGC STURGEON (WPB 87336) 1 Z87336

USCGC SOCKEYE (WPB 87337) 1 Z87337

USCGC IBIS (WPB 87338) 1 Z87338

USCGC POMPANO (WPB 87339) 1 Z87339

USCGC HALIBUT (WPB 87340) 1 Z87340

USCGC BONITO (WPB 87341) 1 Z87341

USCGC SHRIKE (WPB 87342) 1 Z87342

USCGC TERN (WPB 87343) 1 Z87343

USCGC HERON (WPB 87344) 1 Z87344

USCGC WAHOO (WPB 87345) 1 Z87345

USCGC FLYINGFISH (WPB 87346) 1 Z87346

USCGC HADDOCK (WPB 87347) 1 Z87347

USCGC BRANT (WPB 87348) 1 Z87348

USCGC SHEARWATER (WPB 87349) 1 Z87349

USCGC PETREL (WPB 87350) 1 Z87350

05T Desk Guide Tab B - Enclosure (5)

TECHNICAL MANUAL DEFICIENCY / EVALUATION REPORT

1. USE THIS REPORT TO INDICATE DEFICIES, USER REMARKS, AND RECOMMENDATIONS RELATING TO PUBLICATION.

2. FOR ADDITIONAL INFORMATION, CALL SFLC-ESD-Tech Info Mgmt Br (410-762-6646)

1. COAST GUARD TECHNICAL PUBLICATION NO.

2. TITLE

3. REV DATE OR TM CH. DATE

4. SYSTEM / EQUIPMENT

5. INDENTIFICATION / NOMENCLATURE (MK / MOD / AN)

6. USER’S EVALUATION OF MANUAL (CHECK APPROPRIATE BLOCKS)

PAGE

NO.

A

PARA-

GRAPH

B

LINE

NO.

C

FIG

NO.

D

TABLE

E

RECOMMENDED CHANGES AND REASONS

F

7. ORIGINATOR’S RANK, RATE OR GRADE, AND TITLE

8. DATE SIGNED

9. SIGNATURE OF DEPARTMENT HEAD

10. COMMERCIAL PHONE NUMBER

11. SHIP HULL NO. AND / OR STATION ADDRESS (DO NOT ABBREVIATE)

MAIL COMPLETED FORM TO:

COMMANDER

U.S.C.G. SURFACE FORCES LOGISTICS

CENTER, ESD - TECH INFO MGMT BR

707 EAST ORDNANCE ROAD

BALTIMORE, MD 21226-5000

RECORD OF CHANGES

TP NO. _____

DATE AMEND. NO. NAME SIGNATURE EFFECTIVE DATE

Individual Manual Application Sheet

Technical Publications Number

Section Applicability

SWBS Number 555 SWBS Element Title FIRE EXTINGUISHING SYSTEMS

Section Identifier A

Equipment Functional Description

CO2 FIRE SUPRESSION SYSTEM

(ENGINE ROOM)

CI Functional Description ESWBS Code Remarks

Planset Hulls

87-

WPB

87301, 87302, 87303, 87304, 87305, 87306, 87307, 87308, 87309, 87310, 87311, 87312, 87313, 87314, 87315, 87316, 87317, 87318, 87319, 87320, 87321, 87322, 87323, 87324, 87325, 87326, 87327, 87328, 87329, 87330, 87331, 87332, 87333, 87334, 87335, 87336, 87337, 87338, 87339, 87340, 87341, 87342, 87343, 87344, 87345, 87346, 87347, 87348, 87349, 87350, 87352, 87353, 87354, 87355, 87356, 87357, 87358, 87359, 87360, 87361, 87362, 87363, 87364, 87365, 87366

General

This vessel is equipped with a fixed Carbon Dioxide fire extinguishing system utilizing two (2) CO2 cylinders to provide total flooding for the Engine Room.

The Engine Room system contains two (2) 100 Ib. capacity cylinders located below main deck at approximately Frame 13 on the port side of the vessel. In addition to the cylinders, this system contains a discharge delay, two (2) pressure operated switches, one (1) pressure operated siren, and two (2) pneumatic (nitrogen) actuated remote stations.

The remote nitrogen actuator is a 15 cubic inch cylinder pressurized to 1800 psi. A mechanical actuator with a stainless steel cutter pin is installed on the nitrogen cylinder for actuation purposes. The nitrogen pressure is routed to the lever/ pressure operated control head mounted on the master CO2 cylinder for discharging the system.

The operation/ control of the system includes two (2) pneumatic type remote mechanical actuators. These are located in the pilot house and outside the entrance to the Engine Room.

There is a manual lever on the control head on the CO2 cylinder that allows local activation at the cylinders. To operate the system, pull the pin on the mechanical actuator and push the actuator down. By operating the actuator, a cutter pin will open the Nitrogen cylinder to pressurize the actuation line which releases the pressure operated control head on the master cylinder. Should the activation of the pneumatic release not release the CO2, the lever operator on the control head should be operated for release. The gas then enters the manifold and opens the second CO2 cylinder valve, but gas is held back from the protected space by the discharge delay for 30 seconds. During the 30 second delay, the siren is activated, warning personnel to evacuate the protected area, and the pressure switch actuates, which activates the strobe alarm for warning personnel, shutting down engines and ventilation. After the time delay has elapsed, the gas continues through the manifold discharge piping closing the ventilation damper. At that time, the CO2 discharges into the Engine Room through four (4) multi-jet nozzles. The system may be operated manually at the CO2 cylinders by following the instructions posted at that location.

After the system has discharged and the fire has been extinguished, and products of combustion and Carbon Dioxide gas have dissipated from the area by ventilating the space, the following must be performed before the system can be reactivated: The pressure operated switch must be reset to restart the ventilation, the cylinder control heads also must be reset and cylinders filled or replaced and a new nitrogen cylinder must be installed at the remote station used to activate the system.

Minimal periodic maintenance is required on the CO2 system. Refer to the maintenance instructions listed in this manual.

VERSION 2.1

DESIGN, INSTALLATION, OPERATION

AND MAINTENANCE MANUAL

FOR

MARINE CARBON DIOXIDE

KIDDE-FENWAL, INC.

400 MAIN STREET

ASHLAND, MA 01721-2150

508-881-2000

PART NO. 220610

USCG 162/038/1/0

F-42171

U.L EX 923

30 April 1993/Revised 3 January 1994

U.S. Department of Transportation United States Coast Guard

Certificate of Approual

COAST GUARD APPROVAL NO: 162.038/1/0 EXPIRES: JULY 12, 1998

CARBON DIOXIDE TYPE FIRE EXTINGUISHING SYSTEM

KIDDE-FENWAL INC.

400 MAIN STREET

ASHLAND, MA 01721

High Pressure Marine Carbon Dioxide Fire Extinguishing Systems.

Identifying Data: Marine Manual F-42171, P/N 220610, UL File Ex923, dated 30 April 1993.

Previously: Walter Kidde, Div. of Kidde, Inc.

Supersedes and extends approval 162.038/1/0 dtd 12 July 88 to show change in corporate name and address, and revised instruction manual.

* * * END * * *

THIS IS TO CERTIFY THAT the above named manufacturer has submitted to the undersigned satisfactory evidence that the item specified herein complies with the applicable laws and regulations as outlined on the reverse side of this Certificate, and approval is herebv given. This approval shall be in effect until the expiration date hereon unless sooner canceled or suspended by proper authority.

GIVBN UNDERyMY HAND THIS 12TH DAY OF ju/y v493</A/T WASHINGTON D.C.

'R. L. MARKLE

CHIEF, SURVIVAL SYSTEMS BRANCH

BY DIRECTION OF THE COMMANDANT, U.S.C.G.

DEPT.OFTRANSP., USCG, CGHQ-10030(R. 1-86)

PREVIOUS EDITION MAY BE USED

Copy

TERMS: The approval of the item described on the face of the Certificate has been based upon the submittal of satisfactory evidence that the item complies with the applicable provisions of the navigation and shipping laws and the applicable regulations in Title 33 and/or Title 46 of the Code of Federal Regulations. The approval is subject to any conditions noted on this Certificate and in the applicable laws and regulations governing the use of the item on vessels subject to Coast Guard inspection or on other vessels and boats.

Consideration will be given to an extension of this approval provided application is made 3 months prior to the expiration date of this Certificate.

The approval holder is responsible for making sure that the required inspections or tests of materials or devices covered by this approval are carried out during production as prescribed in the applicable regulations.

The approval of the item covered by this certificate is valid only so long as the item is manufactured in conformance with the details of the approved drawings, specifications, or other data referred to. No modification in the approved design, construction, or materials is to be adopted until the modification has been presented for consideration by the Commandant and confirmation received that the proposed alteration is acceptable.

NOTICE: Where a manufacturer of safety-at-sea equipment is offering for sale to the maritime industry, directly or indirectly, equipment represented to be approved, which fails to conform with either the design details or material specifications, or both, as approved by the Coast Guard, immediate action may be taken to invoke the various penalties and sanctions provided by law including prosecution under 46 U.S.C. 3318, which provides:

"A person that knowingly manufactures, sells, offers for sale, or possesses with intent to sell, any equipment subject to this part (Part B. of Subtitle II of Title 46 U.S.CJ. and the equipment is so defective as to be insufficient to accomplish the purpose for which it is intended, shall be fined not more that $10,000, imprisioned for not more than 5 years, or both."

FOREWARD

This manual is provided for those who install and maintain Kidde-Fenwal, Inc. CC>2 marine fire suppression systems for United States Coast Guard inspected vessels. It contains design, installation, operation, and maintenance information for the system.

IMPORTANT

Kidde-Fenwal, Inc. assumes no responsibility for application of this system to hazards other than those addressed in this manual. The technical data contained herein is limited strictly for information purposes only. Kidde- Fenwal, Inc. believes this data to be accurate, but it is published and presented without any guarantee or warranty whatsoever. Kidde-Fenwal, Inc.

disclaims any liability for any use that may be made by the data and information contained herein by any and all other parties.

Kidde-Fenwal, Inc. CC>2 systems are to be designed, installed, inspected, maintained and tested by qualified, trained personnel in accordance with the following:

1. Department of Transportation Code of Federal Regulations Title 46.

2. USCG Navigation and Vessel Inspection Circular NVIC 6-72, "Guide to Fixed Fire-

Fighting Equipment aboard Merchant Vessels."

3. Standard of the National Fire Protection Association No. 12 titled "CC>2 Fire

Extinguishing Systems" (latest edition).

NOTE: If Code of Federal Regulations and National Fire Protection Association Standard 12 are in conflict, the Code of Federal Regulations is the final authority.

4. All instructions, limitations, etc., contained in this manual, F-42171 (P/N 220610).

5. All information contained on the extinguishing system nameplates.

6. Storage, handling, transportation, service, and maintenance of cylinder assemblies shall be only by personnel trained in the proper procedures in accordance with the Safety Bulletins shown in the Appendix of this manual, and Compressed Gas Association* Pamphlets C-1, C-6, G-6, and P-1.

7. Walter Kidde Safety Bulletins Nos. 1 and 5 dated March 2, 1987.

*CGA pamphlets are published by the Compressed Gas Association, 1235 Jefferson Davis Highway, Arlington, VA 22202.

Any questions concerning the information presented in this manual should be addressed to:

KIDDE-FENWAL, INC.

400 Main Street

Ashland, MA 01721-2150 508-881-2000

U. LEX 923

Table of Contents

SECTION TITLE

1 INTRODUCTION 1

1.0 Introduction 1

1.1 Agent Characteristics 1

1.2 Effectiveness 1

SYSTEM DESIGN 3

General 3 Dry Cargo Spaces 3 Electrical Propulsion Equipment 4 Machinery Spaces, Pump Rooms, Paint Lockers, Etc. 4 Vehicle Cargo Spaces 5 Hose Reel Systems 5 Effects of Ventilation and Uncloseable Openings 6 Cylinder Selection and Storage 6 System Controls 7 Automatic Actuation 7 Remote-Manual Actuation 8 Discharge Nozzles 9 Pipe and Fittings 9 Installation Test Requirements 10 Pipe and Nozzle Size Calculation 10 Discharge Manifold 11

SYSTEM ARRANGEMENTS 15

3.1 General 15

3.2 Arrangement No. 1 16

3.3 Arrangement No. 2 17

3.4 Arrangement No. 3 18

3.5 Arrangement No. 4 19

3.6 Arrangement No. 5 20

3.7 Arrangement No. 6 21

DETAILS OF EQUIPMENT 23

4.1 General 23

4.2 C02 CylinderNalve Assemblies 23

4.3 Remote Control Pull Boxes 27

4.4 Remote Nitrogen Actuator 30

4.5 1/4 Inch Ball Valve 32

4.6 Pneumatic Heat Detector and

Control Head 33

4.7 Pressure-Operated Switches 37

4.8 Pressure-Operated Trip 39

4.9 Discharge Nozzles 40

PAGE

U.L. EX 923

30 April 1993lRevised 3 January 1994

2.1 2.2 2.3 2.4

2.5 2.6 2.7

2.8 2.9 2.10 2.11 2.12 2.13 2.14 2.15 2.16

Flexible Discharge Hoses 48 Flexible Actuation Hoses 49 Swivel Adapter 50 Check Valves 51 Time Delay Assembly 54 Cylinder Straps 55 Directional (Stop) Valves 57 Pressure-Operated Control Head 60 Lever-Operated Control Head 61 Discharge Heads 62 Pressure-Operated Siren 64 Manifold "Y" Fitting 65 Safety Outlet 66 Lever/Pressure-Operated Control Head 67 Corner Pulley 68 Dual Pull Mechanism 69 Dual Pull Equalizer 70 Cable-Operated Control Head 71 Cable Housings 72 Discharge Indicator 74 Nameplates 75 Hose Reel/Rack Systems 78 Charging Adapter 84 Smoke Accumulator 85 "Y" Check Valve 86 Throttle Check Valve 87

EQUIPMENT INSTALLATION 88

General 88 Discharge Pipe, Tubing, and Fittings 88 Pneumatic Actuation Pipe and Tubing 88 Rate-of-Rise Detector and Tubing 89 Check and Stop Valves 89 Discharge Manifold 89 C02 Cylinder Assemblies 89 Swivel Adapter 93 Discharge Head to Cylinder Valve 93 Flexible Discharge Hose to Piping 96 Remote Pull Cable Components 96 Cable-Operated Control Head 101 Lever-Operated Control Head 101 Lever/Pressure-Operated Control Head 101 Pneumatic Detector 102 Pneumatic Control Head 102 Pressure Switches 105

U.L. EX 923

30 April 1993lRevised 3 January 1994

4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23

4.24 4.25 4.26 4.27 4.28 4.29 4.30 4.31 4.32 4.33 4.34 4.35

5.1 5.2

5.3

5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 5.13 5.14

5.15 5.16 5.17

Time Delay Assembly 105 Manual Pneumatic Actuation 107 Station Safety Outlet 109 Pressure-Operated Siren 109 Pressure-Operated Trip 109 Discharge Indicator 109 Discharge Nozzles 109 Hose RacWReel 109

OPERATION 114

6.1 Fixed Systems 114

6.1.1 Automatic Operation 114

6.1.2 Remote Manual Mechanical

Operation 114

6.1.3 Remote Manual Pneumatic

Operation 114

6.1.4 Local Manual Operation 115

6.2 Hose Reel or Rack Systems 115

6.2.1 Local Manual Operation 115

6.2.2 Remote Manual Operation 116

INSPECTION AND MAINTENANCE 117

General 117 Preventive Maintenance 118 Monthly lnspection 118 Semi-Annual Weighing C02 Cylinders 119 Pressure Switch Test 121 2 Year lnspection 121 Pneumatic Detection System Tests 122 Control Head Vent Test 124 Test for Leakage of System Tubing and Detectors 124 Troubleshooting of Pneumatic Detection System 126 5 Year lnspection 126 lnspection and Test of Nitrogen Cylinders 126 lnpection and Test of Flexible Hoses 127 Cleaning 127 Nozzle Service 127 Repairs 127 Removal of Cylinders 127 C02 Cylinders 127 Nitrogen Cylinders 128 Installation of Cylinders 128 C02 Cylinders 128

U.L. EX 923

30 April 1993lRevised 3 January 1994

5.18 5.19

5.20 5.21 5.22 5.23 5.24 5.25

7.1 7.2 7.3 7.4

7.5 7.6 7.7 7.8 7.9

7.10

7.11 7.12

7.13

7.14 7.15 7.16 7.17

7.17.1 7.17.2 7.18 7.18.1

7.1 8.2 Nitrogen Cylinders 129

7.19 Post Fire Maintenance 130

7.20 Cylinder Recharge 131

7.20.1 C02 Cylinders 131

7.20.1.1 C02 Cylinder Leak Test 134

7.20.2 Nitrogen Cylinders 134

7.21 Hose Rack or Reel System 135

8 SAMPLE C02 CALCULATIONS 136

9 MAJOR COMPONENTS 139

APPENDIX 142

MATERIAL SAFETY DATA SHEETS 143

SAFETY BULLETIN 1, March 2, 1987 "Safe 149 Cylinder Handling Procedures" SAFETY BULLETIN 5, March 2, I987 "Safe 150 Cylinder Handling Procedures For Carbon Dioxide and Nitrogen Cylinders"

U.L. EX 923

30 April 1993lRevised 3 January 1994

SECTION 1

1.0 INTRODUCTION

This manual is intended for use by qualified marine fire suppression specialists responsible for designing Kidde-Fenwal, Inc. Marine Carbon Dioxide Systems aboard USCG inspected vessels. In addition to this manual, the system designer should be familiar with the NFPA Standard No. 12 (Carbon Dioxide Extinguishing Systems, latest edition). CFR Title 46 Shipping, Chapter I, Navigation and Vessel Inspection Circular No. 6-72 "Guide to Fixed Fire- Fighting Equipment Aboard Merchant Vessels," American Bureau of Shipping "Rules for Building and Classing" and International Maritime Organization "International Maritime Convention for Safety of Life at Sea (SOLAS)."

1.1 AGENT CHARACTERISTICS

i

CO2 is a compound of carbon and oxygen. A gas at normal pressures and temperatures, CO2 is colorless, odorless, and electrically non-conductive. It is approximately 50% heavier than air.

Primarily, CO2 suppresses fires by reducing the available oxygen in the atmosphere to a point where combustion can no longer take place. Additionally, CO2 provides a secondary desirable cooling effect and leaves no residue. It dissipates into the atmosphere after the discharge, allowing for rapid clean-up and minimal equipment downtime.

WARNING

BECAUSE CO2 REDUCES THE AVAILABLE OXYGEN IN THE

ATMOSPHERE, IT WILL NOT SUPPORT LIFE. CARE MUST BE TAKEN TO

ENSURE ALL PERSONNEL ARE EVACUATED FROM THE PROTECTED

SPACE PRIOR TO DISCHARGING THE SYSTEM. A SUITABLE WARNING

NOTICE MUST BE PROMINENTLY DISPLAYED IN CLEAR VIEW AT THE

POINT OF ENTRY INTO THE PROTECTED AREA TO ALERT PERSONNEL

OF THE ASPHYXIATION PROPERTIES OF CO2.

1.2 EFFECTIVENESS

CO2 is an effective agent for Class A (wood, paper, etc.), Class B (flammable liquids and gases), and Class C (electrical equipment) hazards. CO2 must be applied with due consideration to the hazard being protected and its contents. Rapidly developing fires such as those found in engine and pump rooms must be extinguished quickly with CO2 to minimize heat buildup. In contrast, a fire in a cargo hold containing wood or paper is controlled with a slower CO2 discharge and the hold may have to be kept inert for a considerable time to ensure complete extinguishment.

Carbon dioxide must not and cannot be used on Class D (reactive metals, metals hydrides and chemicals containing their own oxygen supply) hazards, such as magnesium, potassium, sodium, and cellulose nitrate. These Class D fires can only be controlled by special extinguishing agents and procedures.

U. LEX 923

30 April 1993

Table 1-1 Physical Properties of Carbon Dioxide

Molecular weight = 44

Specific gravity of gas (@ 32°F and 2 atm) = 1.529

Vapor density, Ibs/cu ft. (@ 32°F and 2 atm) = 0.1234

Liquid density, Ibs/cu ft. (@ 2°F) = 63.3

Liquid density, Ibs/cu ft. (@ 80°F) = 42.2

Triple point = -69.9°F @ 60.4 psig

Sublimation temperature (@ 1 atm) = -109.4°F

Critical temperature = 87.8°F

Critical pressure, psig = 1057.4

Latent heat of sublimation, BTU/lb = 246.3 (@-109.4°Fand 1 atm)

Latent heat of liquid, BTU/lb = 119.1 (@ 2°F and 301.5 psig)

IMPORTANT - READ CAREFULLY

The carbon dioxide and nitrogen gases used in these systems are stored in cylinders at extremely high pressures. An uncontrolled release of this high pressure gas from an accidental discharge, improper handling, or damage to parts can result in a violent and rapid propulsion of the cylinder(s), capable of causing severe property damage, personal injury, or death. All the warnings and instructions noted in this manual must be followed for the safe handling, installation, transportation, service and inspection of the cylinders.

SECTION 2

SYSTEM DESIGN

2.1 GENERAL

USCG CO'2 systems provide suitable fire suppression for five distinct categories, depending on the nature of the hazard and the protected space. The categories are:

Dry cargo spaces Enclosed ventilation systems for rotating electrical propulsion equipment -—- Machinery spaces, pump rooms, paint lockers, etc.

Vehicle cargo spaces Semi-portable hose reels i The CO2 requirements and discharge rates vary, depending on the nature of the protected space, and the gross volume of the compartment. The space must first be identified and assigned into one of the five categories listed above. Once categorized, the required amount of CO2 can be determined, along with discharge rates, pipe sizes, etc.

2.2 DRY CARGO SPACES

General

Cargo compartment fires generally involve Class A combustibles. The fire will generally start as a slow, smoldering type fire, producing large amounts of smoke. Once sufficient heat has developed, the fire will dramatically increase in intensity. A USCG approved fire detection system should be used to detect the fire while it is still in the smoldering stage.

Once a fire has been detected, all openings to the space must be closed. An initial amount of CO2 can then be discharged until a sufficient concentration has been developed to bring the fire under control. With the openings still sealed, additional CO2 can be discharged from time to time to maintain the proper concentration. The space is kept closed until the vessel reaches port. At port, the hold can be opened, the cargo can be removed, and final extinguishment can be accomplished with additional CO2, water, or other agents.

System Design

The amount of CO2 required can be determined by dividing the gross volume of the space (in cubic feet) by 30. The cargo space is defined as the volume between watertight or firescreen bulkheads, and from the tank top or lowest deck to the deck head of the uppermost space on which the cargo may be carried. If a trunk extends beyond such deck, the trunk volume must be included in determining the CO2 requirement. All tonnage openings can be considered as sealed for this purpose.

Because of the nature of the fire hazard, no specific discharge rates need be applied to these systems. However, the discharge piping to the various holds and between decks must not be less than 3/4 inch in size.

2.3 ELECTRICAL PROPULSION EQUIPMENT

General

Electrical propulsion equipment fires generally involve Class C combustibles, and can be deep seated in nature. Usually an initial discharge is provided to quickly suppress any surface flames, and an extended discharge is provided to maintain the CO2 concentration until the equipment can be stopped. This type of system generally involves two separate discharge lines and nozzles. On small systems, one common discharge line may be used for both the initial and extended discharge. If the initial discharge is such as to achieve the required concentration until the equipment is stopped, no delayed discharge is necessary.

System Design

The amount of CO2 required for the initial discharge can be determined by dividing the gross volume of the system by 10 (for spaces less than 2,000 cubic feet). For spaces equal to or greater than 2,000 cubic feet, divide the gross volume by 12. The initial discharge must be completed within two minutes.

The amount of CO2 required for the extended discharge is dependent on the gross volume, the time it takes to stop the equipment, and the amount of air movement in the system.

Sufficient CO2 must be provided to maintain a minimum 25% concentration until the equipment can be stopped. Refer to NFPA 12 for guidance as to how the required amount of CO2 is calculated.

2.4 MACHINERY SPACES, PUMP ROOMS, PAINT LOCKERS, ETC.

General

Fires in machinery and similar spaces generally involve Class B combustibles. Contrary to cargo compartments, fires in machinery spaces develop rapidly and can become intense in a short period of time. For this reason, it is critical that CO2 be discharged quickly. Rapid discharge and extinguishment prevents the heat/fire from damaging equipment, bulkheads, and other structural members.

System Design

The amount of CO2 required for the compartment is equal to the gross volume of the space divided by the appropriate flooding factor shown*in Table 2-1. If the flammable liquid can drain or spread to an adjacent space, the sum of the compartment volumes shall be used to determine the required amount of CO2- The system must be arranged to discharge CO2 simultaneously into both compartments.

The volume of the machinery space must exclude the normal machinery casing unless the boiler, internal combustion machinery, or fuel oil installations extends into the space. In such an instance, the volume shall include the top of the casing, or the next material reduction in casing area, whichever is lower.

The definition of "normal machinery casing" is a casing the area of which is less than 40% of the maximum area of the machinery space. "Material reduction in casing area" is defined as a

U.LEX 923 4

reduction to at least 40% of the casing area. These definitions do not apply to vessels contracted for prior to October 1, 1959.

For vessels on an international voyage contracted for after May 26. 1965, the amount of CC>2 for a space containing boilers and/or internal combustion machinery used for propulsion must be as follows: Divide the gross volume (excluding the casing) of the space by the appropriate factor referenced in Table 2-1 or divide the entire gross volume (casing included) by a factor of 25, and use the larger of the two amounts. A minimum of 85% of the required amount of CC>2 must be discharged in two minutes.

Table 2-1 CO2 Flooding Factors

Gross Volume (Cubic Feet) Flooding Factor (Cubic Feet/Lb.)

i

0-500 15 501-1,600 16

1,601-4,500 18 4,501 - 50,000 20 Greater than 50,000 22

2.5 VEHICLE CARGO SPACES

General

Vehicle cargo (Ro/Ro) space fires generally involve Class A (rubber, plastics, and other ordinary combustibles), Class B (flammable liquids), and to a lesser extent, Class C combustibles. These type fires propagate slowly but become intense and grow rapidly as they progress. Care should be taken to quickly develop and maintain the CO2 concentration for a sufficient period of time to ensure complete extinguishment.

System Design

The amount of CO2 required is calculated by dividing the gross volume (in cubic feet) of the largest space by 22. Because of the nature of the fire hazard, 2/3 of the required amount of CO2 must be discharged within 10 minutes. Faster discharge times are permissible.

2.6 HOSE REEL SYSTEMS

General

In addition to the previously mentioned "fixed" type systems, hose reels provide a semi-portable means of discharging CO2 directly onto the burning material. Hose reel systems provide a large volume discharge, much greater than that available from hand-held portable fire extinguishers, and are intended for smaller hazard applications. Personnel evacuation and equipment shutdown may sometimes be avoided by the use of these semi-portable units. The units themselves are generally located within the protected space in an open area, so that all portions of the space may be covered to provide quick response to an emergency.

System Design

Sufficient CO2 is provided for at least a one minute discharge. The discharge is controlled by a hose mounted shut-off valve located directly upstream of the hand-held nozzle. The hose, which interconnects the shut-off valve with the reel/rack, is available in various sizes and lengths to meet the hazard requirements. The hose reel and rack are equivalent in terms of effectiveness, although the reel is easier to manipulate.

2.7 EFFECTS OF VENTILATION AND UNCLOSEABLE OPENINGS

The proper control of a fire by a CO2 system depends on the integrity or "tightness" of the enclosed space. Any agent leakage from the space will reduce the effectiveness of the system. Large leaks or openings will render the system ineffective.

In spaces where a ventilation system is installed, the ventilation system must be shutdown prior to the CO2 discharges. This shutdown must be accomplished automatically by the operation of the CO2 system (via pressure operated switches or releases). Complete ventilation shutdown must be accomplished before the CO2 system is discharged. If the ventilation system cannot be shut down, an additional amount of CO2 must be added to compensate for the effects of the loss through the ventilation system.

Uncloseable openings in the space will also adversely affect the CO2 system. Depending on the quantity, size, and location of the openings, additional agent will be required. The amount of additional agent and the discharge rate shall be in accordance with NFPA 12. A discharge test is recommended to verify the effectiveness of the CO2 system and the integrity of the protected space.

2.8 CYLINDER SELECTION AND STORAGE

Once the amount of CO2 has been determined, the next step of the system design process is to determine the appropriate size and quantity of CO2 storage cylinder(s). Refer to Table 2-2 for selection of the appropriate cylinder size.

Table 2-2 Cylinder Configurations

Cylinder size Part No. DOT Rating Figure Number

All cylinders on a common manifold must be of the same size. Cylinders should be located as near to the protected space as possible. The cylinders must be located outside the protected space, except for spaces which require no more than 300 Ibs. of CO2. Cylinders installed outside the protected space must be in an accessible location to permit manual actuation in the event of fire (without the need to go through any of the protected spaces). The cylinders must be located such that the ambient storage temperature range falls between 0°F and

U.L. EX 923

25 870486 3A-2015 4-2

35 982547 3A-2015 4-2 50 982548 3A-2015 4-2

75 870287 3AA-2300 4-2

100 870269 3AA-2300 4-1

130°F. Additional heating or cooling of the space may be required to maintain this temperature range.

CC>2 cylinders are equipped with a burst disc to relieve excessive pressure within the cylinder.

If the cylinders are located adjacent to the protected space, enough heat may be conducted through bulkheads or decks to rupture the burst disc. Should this occur, the CO2 storage room would be filled with agent and little, if any, would be available to extinguish the fire. Therefore, common bulkheads and decks between CC>2 storage rooms and protected spaces must be protected with A-60 structural insulation. Cylinders must not be located in any space that might be cut off or made inaccessible in the event of a fire in any of the spaces protected.

2.9 SYSTEM CONTROLS

System actuation can be accomplished by three methods:

1. Automatic, via pneumatic heat actuated devices (for spaces which require no more than 300 Ibs. of CO2).

2. Remote-manual, via cable or pneumatic releases.

3. Local-manual, via mechanical means at the storage cylinders themselves.

2.10 AUTOMATIC ACTUATION

For spaces requiring no more than 300 Ibs. of CO2, the USCG permits the use of automatic actuation. This is accomplished by utilizing a pneumatic detection system. This system employs the rate-of-rise principle. A sudden increase in temperature will cause the system to actuate.

Heat actuators are located throughout the hazard, and are interconnected to pneumatic control heads (located on the pilot cylinders) via copper tubing. When the air within the heat actuator becomes heated due to a fire within the protected space the air expands and builds up pressure in the actuator. The pressure is then transmitted through the copper tubing to the pneumatic control heads. When sufficient pressure has built up (the amount ranges from one to six inches of water column), the pneumatic control heads will operate and discharge the system.

The pneumatic control heads are fitted with vents, so that slight changes in pressure, due to normal changes in ambient temperature, can be vented to atmosphere.

Heat detectors are installed no more than 10 feet from a bulkhead; spacing must not exceed 20 feet, center-to-center, or 400 square feet per detector. The use of more than four detectors will require a mercury check.

30ApriM993

2.11 REMOTE-MANUAL ACTUATION

Remote-manual actuation can be accomplished via cable or pneumatic releases. Cable operated pull boxes are available in various configurations. The pull boxes are connected to the control heads (located on the storage cylinders or stop valves) via 1/16 inch stainless steel cable. Corner pulleys are used to change direction of the cable routing. The cable should be routed in 3/8 inch schedule 40 pipe.

The USCG mandates that the maximum force required to operate the pull box may not be greater than 40 pounds, nor require a movement greater than 14 inches. No more than 15 corner pulleys and 100 feet of cable should be used with control head, P/N 979469 and 6 corner pulleys with any pneumatic control head. If other combinations of corner pulleys and lengths of cable are required, the 40 Ib. maximum force and 14 inch maximum travel requirements must not be exceeded.

Table 2-3 Corner Pulley and Cable Limitations

Max. Number Corner Pulleys Max. Cable

Control Head Type P/N 803808 Length, Ft.

979469 Cable Operated 15 100 872318 Pneumatic 6 100 872335 Pneumatic 6 100 872362 Pneumatic 6 100 872310 Pneumatic 6 100 872360 Pneumatic 6 100

As an alternate to the cable operated system, Kidde-Fenwal, Inc. also offers a pneumatic actuation system. The system consists of a nitrogen actuation cylinder, which is connected to the CO2 pilot cylinders by pipe or tubing. Normally, the pneumatic system is used only when the maximum requirements for the cable system cannot be met. Limitations on pilot lines are shown in Table 2-3.

Table 2-4 Actuation Line Limitations

1/4 Inch O.D.

Maximum Linear Feet 1/4 Inch 1/4 Inch X 0.035 Wall Feet Permitted Between Sch 40 Sch 80 Stainless Steel N2and CO2 Cylinders Tubing

300 Feet 436 Feet 427 Feet

2.12 DISCHARGE NOZZLES

Kidde-Fenwal, Inc. offers three basic types of total flooding type discharge nozzles: Type "V," "S." and "M."

Type "V"

Type V nozzles have a 1/2 inch NPT inlet connection and are generally used with electrical propulsion equipment and ventilation systems. The V nozzle can accommodate CC>2 flow rates up to approximately 100 Ibs./min. The nozzles must be spaced approximately 15 to 20 feet apart. The nozzle(s) should be strategically located to provide optimum CO2 distribution. A strainer is provided with V nozzles that have orifice codes less than 5 to prevent foreign objects in the pipe from clogging the nozzle orifice. A flange and cover assembly is available for ease of installation and to prevent foreign objects from entering the piping network.

f

Type "S"

Type S nozzles also have a 1/2 inch NPT inlet connection, and are generally used with machinery spaces, pump rooms, etc. The S nozzle can accommodate CC>2 flow rates up to approximately 100 Ibs./min. In addition to the standard S nozzle, flanged and cadmium plated versions are available where installation requirements dictate. The nozzles must be spaced every 20 to 30 feet apart at a height equal to approximately 1/3 the height of the space.

Additional tiers of nozzles may be required for spaces with multiple levels. Strainers are provided with those nozzles having orifice sizes less than 6. A flange and cover assembly is also available for the flanged S nozzle.

Type "M"

For large machinery spaces and pump rooms where greater quantities of CC>2 are required, type M nozzles are utilized. Having a 3/4 inch NPT inlet connection, the M nozzle will accommodate flow rates up to 225 Ibs./min. The nozzles must be spaced every 20 to 30 feet apart at a height equal to approximately 1/3 the height of the space. Additional tiers of nozzles may be required for spaces with multiple levels. Strainers are provided with those nozzles having orifice sizes less than 6.

2-13 PIPE AND FITTINGS

Once the discharge nozzles have been selected and located, the distribution piping can be routed. The route utilizing the least amount of pipe and fittings must be used to minimize friction loss. The piping must extend at least two inches beyond the last nozzle of each nozzle header (branch line) to prevent clogging. All pipe and fittings must be galvanized inside and out.

Pipe and fittings must be in accordance with 46 CFR Subchapter F, Parts 54 through 56 as follows:

Pipe:

Fittings:

Flanges:

2.14

Galvanized steel pipe must conform to ASTM A-53 seamless or ERW, Grade A or B, or ASTM A-106 seamless or ERW, Grade A, B, or C, in accordance with ANSl B31 -1. Schedule 40 pipe is acceptable for pipe up to and including 3/4 inch. Larger pipe sizes must be schedule 80. ASTM A-120 or ASTM-53 furnace welded Class F pipe must not be used. All piping components must have a minimum melting point of 1 ,700°F.

Fittings must be malleable iron Class 300 (ASTM A-197, ANSl B16.3), ductile iron Class 1000 ASTM A-395, UCD 23 Section VIII, ASME Code), or forged steel ASTM A-234, ANSl B16.9 and B16.11. Threaded joints are acceptable for sizes up to and including 2 inches, and must be in accordance with ANSl B120.1. Welded joints must be used for pipe sizes greater than 2 inches. Welding must be in accordance with Section IX of the ASME "Boiler and Pressure Vessel Code", and 46CFR 56.70.

Flanged joints are acceptable. 300 Ib. class downstream of any stop valves or in systems with no stop valves; 600 Ib. class for flanged joints upstream of any stop valves. Flanges, gaskets, nuts, and bolts must be in accordance with ANSl B16.5.

INSTALLATION TEST REQUIREMENTS

Upon completion of the piping installation, a pressure test must be done on the piping network.

Test with CO2, nitrogen, or dry air. The CO2 cylinders must be disconnected and the manifold inlets plugged.

The piping from the cylinders to the directional (stop) valves must be pressurized to 1000 psi.

With no additional gas being added, the pipe must maintain pressure for a two minute period.

The maximum pressure loss permitted is 150 psi per minute.

The piping downstream of the directional (stop) valves must be tested in a similar manner with the exception that the initial pressure shall be 600 psi instead of 1000 psi. For the purpose of this test, the piping must be capped within the protected space at the first joint upstream of the nozzles.

For small, independent systems (e.g., protecting emergency generator rooms, paint lockers, etc.) the above test can be waived provided the piping is blown out with CO2, nitrogen or dry air of at least 100 psi and the cylinder is installed in the protected space.

2.15 PIPE AND NOZZLE SIZE CALCULATION

To determine the proper discharge pipe and nozzle sizes, the following method must be followed:

1. Determine the appropriate amount of CO2 required for the space as described in sections 2.2 through 2.6.

2. Calculate the nominal cylinder outlet area (sq. in.) by multiplying the Ibs. of CO2 required by the factor 0.0022. The minimum nominal cylinder outlet area shall be 0.1 10 sq. in.

3. Using the amount of CO2 calculated in step 1, refer to Table 2-5 to determine the correct pipe size for each branch.

Using the size for the main supply pipe as determined in step 3, refer to Table 2-6 to obtain the internal area of that pipe size.

Calculate the equivalent nozz le orifice area by dividing 45% of the nominal cylinder outlet area (step 2) or 45% of the supply pipe area (step 4); whichever is smaller, by the total number of nozzles.

Referring to Table 2-7, compare the value calculated in step 5 with the various equivalent nozzle areas available. Choose the closest area and corresponding orifice code number.

To calculate the total nozz le orifice area, multiply the equivalent nozz le area chosen in step 6 by the total number of nozzles. The total equivalent nozz le orifice area should not exceed 85%, nor be less than 35% of the nominal cylinder outlet area (step 2), or the area of the supply pipe (step 4), whichever is smaller.

Refer to Section 8 for an example of the calculation method.

2.16 DISCHARGE MANIFOLD

To assure proper actuation of slave cylinders, it is recommended that the cylinder manifold be sized based upon total pounds of C02 discharging through that section of the manifold. Table 2-5 is to be used as a guide to detetmine the pipe sizes required.

Recommended maximum pipe size for straight pipe manifold is one pipe size smaller than the supply pipe, but in no case shall the manifold exceed 1-1/2 inch in size.

Table 2-5 Minimum Pipe Size Determination

Maximum C02 Quantity (Ibs.) Nominal Pipe Size (In.)

Table 2-6 Internal Pipe Area (Sq. In.)

Nominal Pipe Size (In.)

1/2 3/4

1 1/4 1 1/2

2 1/2

Internal Area (Sq. In.)

0.304 0.533 0.719 1.283 I.767 2.953 4.238 6.605

II.500

18.194 26.067

NOTE: The areas shown above are based on schedule 80 pipe, with the exception of 1/2 and 3/4 inch whose areas are based on schedule 40.

Table 2-7 Nozzle Identification Chart

Orifice Code No.

Equivalent Single Orifice Diameter (In.)

Equivalent Single Orifice Area (In.)

Type S

1+ 3/64 2 1/16 2+ 5/64 3 3/32 3+ 7/64 4 1/8 4+ 9/64 5 5/32 5+ 11/64 6 3/16 6+ 13/64 7 7/32 7+ 15/64 8 1/4 8+ 17/64 9 9/32 9+ 19/64 10 5/16 11 11/32 12 3/8 13 13/32 14 7/16 15 15/32

U.L EX 923

30 April 1993

.0017

.0031

.0047

.0069

.0094

.0123

.0155

.0192

.0232

.0276

.0324

.0376

.0431

.0491

.0554

.0621

.0692

.0767

.0928

.1105

.1296

.1503

.1725 x 803381 803365 803366 803367 803368 803369 803370 803371 803372 803373 803374 803375 803376 803377 803378 803379 803380 x x X

X

X

Type M x X

X X

X

842319 842320 942321 842322 842323 842324 842325 x 842326 x 842327 x 842328 842329 842330 842331 842332 842333

Type V

933067 919309 803327 929242 803328 915876 803329 214721 214722 214723 214724 214725 214726 214727 214728 214729 x x X

X

X

X

X

Table 2-8 Equivalent Lengths, Threaded Fittings and Miscellaneous Valves

Pipe Size, (In.)

1/2 3/4

1 1/4 1 1/2

2 1/2

Pipe Size, (In.)

1/2 3/4

1 1/4 1 1/2

21/2

Thru Tee

TT

1.0 1.4 1.8 2.3 2.7 3.5 4.1 5.1 6.7 8.4 10.1

Side Outlet Tee

ST

3.4 4.5 5.7 7.5 8.7 11.2 13.4 16.6 21.8 27.4 32.8

90 Deg.

Elbow

EL

1.7 2.2 2.8 3.7 4.3 5.5 6.6 '8.2 10.7 13.4 16.2

Check Valve

CV

N/A N/A N/A

Table 2-9 Equivalent Lengths, Welded Fittings and Miscellaneous Valves

Thru Tee

TT

0.7 0.9 1.1 1.5 1.7 2.2 2.7 3.3 4.4 5.5 6.6

Side Outlet Tee

ST

2.1 2.8 3.5 4.6 5.4 6.9 8.2 10.2 13.4 16.8 20.2

90 Deg.

Elbow

EL

0.8 1.1 1.4 1.8 2.1 2.8 3.3 4.1 5.4 6.7 8.1

Check Valve

CV

N/A N/A N/A

Stop Valve

SV

69* 216* N/A N/A

Stop Valve

SV

69* 216* N/A N/A

*Equivalent length of 2 1/2" and 3" pipe is for brass valve, Kidde-Fenwal, Inc. P/N 890010.

NOTE: If piping requires 45 degree elbows, enter data as 90 degree elbows (e.g., two 45 degree elbows = one 90 degree elbow)

U.L EX 923

Table 2-10 Miscellaneous Equivalent Lengths

Description Pipe Size (In) Equivalent Length (Feet) Sch. 40 Sch. 80

25, 35, 50 Ib. CO2 Cylinder 1/2 73 37 with Valve P/N 981372 flexible hose P/N 252184 or swivel adapter P/N 932408, and discharge head P/N 872442 or 872450

75, or 100 Ib. CO2 Cylinder 1/2 31 16 with Valve P/N 840253 flexible hose P/N 251821 or swivel adapter P/N 932408, and discharge head P/N 872442 or 872450

Time Delay, P/N 871071 1/2 11 6

Time Delay, P/N 897636 3/4 15 8

U. LEX 923 14

SECTION 3

SYSTEM ARRANGEMENTS

3.1 GENERAL

The following schematics depict typical USCG approved 'system arrangements. These schematics will assist the system designer in selecting the proper arrangement and components to best suit a particular application. Table 3-1 provides the designer with a general system arrangement overview for quick reference purposes. Additionally, a "sequence of events" description is also provided to describe the primary method of system operation, using an operating lever on each control head. For redundancy reasons, this method of operation is only described in Arrangement No. 1, but is typical for all arrangements.

SYMBOL LEGEND

C A R B O N DIOXIDE (WITH DISCHARGE HEAD)

CONTROL HEAD, C A B L E OPERATED

CONTROL H E A D , P N E U M A T I C / C A B L E OPERATED

CONTROL HEAD, MANUAL OPERATED

C O N T R O L H E A D , M A N U A L / P R E S S U R E OPERATED

CONTROL HEAD. PRESSURE OPERATED

PRESSURE SWITCH

A L A R M S IREN (PNEUMATIC)

DISCHARGE NOZZLE(S )

MANUAL STATION (CABLE OPERATED)

MANUAL STATION (NITROGEN AND MANUAL V A L V E )

N O T USED

P N E U M A T I C HEAT DETECTOR

D U A L P U L L M E C H A N I S M

STOP VALVE (DISCHARGE)

STOP VALVE (CONTROL)

SAFETY OUTLET

CHECK VALVE

N O T USED

DISCHARGE HOSE

U. L. EX 923

3.2 ARRANGEMENT NO. 1

Arrangement No. 1 is a system protecting a single space, requiring no more than 300 Ibs. of CO2- One, two, or three cylinders are required, with storage located outside the protected space. System actuation is accomplished by means of cable operation. An emergency method of operation is provided at the cylinder location. All the control heads are equipped with a manual operating lever with a lead wire sealed pull-pin to preclude accidental operation. In the event the cable operated pull-box fails to discharge the system, personnel can be instructed to activate the system via this manual operating lever.

Primary system activation is accomplished using the remote located, cable pull box. After it has been verified that no personnel are in the space, the cable pull box is operated. This causes the cable control head located on the pilot CO2 cylinder to operate, causing the cylinder to discharge. The discharged CO2 is directed to a pressure operated switch, which shuts down ventilation and/or equipment, and then to a pneumatic operated siren (optional). The siren warns personnel of the simultaneous discharge. The agent is then directed into the space via the pipe and nozzle network.

0--

1/2' MIN…