Kidde Engineered Carbon Dioxide User Manual

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P/N 81-CO2MAN-001

LISTED

APPROVED

September 2013

Engineered

Carbon Dioxide (CO

Fire Suppression Systems

Design, Installation,

Operation and

Maintenance Manual

)

UL Listing File No. EX 4674

FOREWORD

Note: This Kidde Fire Systems Engineered Carbon Dioxide (CO2) Fire Suppression System Design,

Installation, Operation, and Maintenance manual, P/N 81-CO2MAN-001, is for use only by qualified and factory-trained personnel with working knowledge of applicable standards such as NFPA, as well as a working knowledge of Kidde Fire Systems Engineered Carbon Dioxide (CO

) Fire Suppression

System. Kidde Fire Systems does not authorize or recommend use of this Manual by others.

The data contained herein is provided by Kidde Fire Systems as a guide only. It is not intended to be all inclusive and should not be substituted for professional judgement. Kidde Fire Systems believes the data to be accurate, but this data is provided without guarantee or warranty to its accuracy or completeness.

Any questions concerning the information presented in this manual should be addressed to: Kidde Fire Systems

400 Main Street Ashland, MA 01721 Phone: (508) 881-2000 Toll Free: (800) 872-6527 Fax: (508) 881-8920

TERMS AND ABBREVIATIONS

ABS: Absolute N.C.: Normally Closed ADA: Americans with Disabilities Act NFPA: National Fire Protection 

Association AH: Ampere Hour N.O.: Normally Open AWG: American Wire Gauge N

BIL: Basic Installation Level P/N: Part Number C: Common PED:

CFM: Cubic Feet per Minute TC: Transport Canada

: Carbon Dioxide TCF: Temperature Correction Factor

DC: Direct Current TPED:

Nitrogen

Pressure Equipment Directive

Transportable Pressure Equipment Direc-

tive

DOT: Department of Transportation UL/ULI: Underwriters Laboratories, Inc. FM: Factory Mutual ULC: Underwriters Laboratories of Canada H20: Water V: Volts

HVAC: Heating, Venting and Air 

Conditioning Hz: Hertz (Frequency) Vdc: Volts DC mA: Milliamperes

Vac: Volts AC

MATERIAL SAFETY DATA SHEETS

Hard copies of the Material Safety Data Sheets (MSDS) are not included with this manual. The latest version of the MSDS you are searching for can be found online at the Kidde Fire Systems website (www.kiddefiresystems.com). Use the built-in navigation links to view the desired sheet.

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September 2013 ii P/N 81-CO2MAN-001

SAFETY SUMMARY

The Kidde Fire Systems Engineered Carbon Dioxide (CO2) Fire Suppression System, uses pressurized equipment, and therefore you MUST notify personnel responsible or who may come into contact with the Engineered Carbon Dioxide (CO handling, installation, maintenance, or use of this equipment.

Fire suppression service personnel must be thoroughly trained by you in the proper handling, installation, service and use of the equipment in compliance with applicable regulations and codes and following the instructions in this manual, any Safety Bulletins and also the cylinder nameplate.

Kidde Fire Systems has provided warnings and cautions at a number of locations throughout this manual. These warnings and cautions are not comprehensive, but provide a good guide as to where caution is required. These warnings and cautions are to be adhered to at all times. Failure to do so may result in serious injury.

Material Safety Data Sheets (MSDS) for nitrogen and CO should ensure your personnel are familiar with the information contained in these sheets.

) Fire Suppression System, of the dangers associated with the improper

are available from Kidde Fire Systems. You

DEFINITIONS

WARNING

CAUTION

WARNING

Indicates an imminently hazardous situation which, if not avoided, could result in death, serious bodily injury and/or property damage.

Indicates a potentially hazardous situation which, if not avoided, could result in property or equipment damage.

SUBJECT: SPECIFIC HAZARD

Because carbon dioxide reduces the available oxygen in the atmosphere, it will not support life. Care must be taken, and appropriate alarms shall be used, to ensure that all personnel are evacuated from the protected space prior to discharging the system. Suitable warning signs must be prominently displayed in clear view at the point of entry into the protected area to alert people to the asphyxiation properties of carbon dioxide.

PROCEDURES FOR SAFELY HANDLING CYLINDERS

Pressurized (charged) cylinders are extremely hazardous and if not handled properly are capable of violent discharge. This may result in serious bodily injury, death and property damage.

Before handling Kidde Fire Systems products, all personnel must be thoroughly trained in the safe handl ing of the containers as well as in the proper procedures for installation, removal, filling, and connection of other critical devices, such as flex hoses, control heads, discharge heads, and anti-recoil devices.

READ, UNDERSTAND and ALWAYS FOLLOW the operation and maintenance manuals, owners manuals, service manuals, etc., that are provided with the individual systems.

The following safety procedures are minimal standards that must be adhered to at all times. These are not intended to be all inclusiv e.

P/N 81-CO2MAN-001 iii September 2013

Moving Cylinders: Cylinders must be shipped compactly in the upright position, and properly secured in place. Cylinders must not be rolled, dragged or slid, nor allowed to be slid from tailgates of vehicles. A suitable hand truck, fork truck, roll platform or similar device must be used while maintaining properl y secured cylinders at all times.

Rough Handling: Cylinders must not be dropped or permitted to strike violently against each other or other surfaces.

Storage: Cylinders must be properly secured and safely stored in an upright position and in accordance with any applicable regulation, rule or law. Safe storage must include some protections from tipping or being knocked over.

Nothing in this manual is intended as a substitution for professional judgment and will not serve to absolve any professional from acting in a manner contrary to applicable professional standards.

For additional information on safe handling of compressed gas cylinders, see CGA Pamphlet P-1 titled “Safe Handling of Compressed Gases in Containers”. CGA pamphlets may be purchased from The Compressed Gas Association, 14501 George Carter Way, Suite 103, Chantilly VA 20151-292 or from their website

www.cganet.com

SUBJECT: PROCEDURES FOR SAFELY HANDLING PRESSURIZED CYLINDERS

WARNING

THESE INSTRUCTIONS MUST BE FOLLOWED IN THE EXACT SEQUENCE AS WRITTEN TO PREVENT SERIOUS INJURY, DEATH OR PROPERTY DAMAGE.

Shipping Cap

1. Each cylinder is factory equipped with a shipping cap over the cylinder valve connected to the cylinder collar. The shipping cap is a safety device and will provide a controlled safe discharge when installed if the cylinder is actuated accidentally.

2. AT ALL TIMES, the shipping cap must be securely installed over the cylinder valve and the actuation port protection cap shall be attached unless the cylinders are connected into the system pipi ng during filling or performing testing.

Protection Cap

A protection cap is factory installed on the actuation port and securely chained to the valve to prevent loss. The cap is attached to the actuation port to prevent tampering or depression of the actuating pin. No attachments (control head, pressure control head) are to be connected to the actuation port during shipment, storage, or handling.

Pressurized (charged) cylinders are extremely hazardous and if not handled properly are capable of violent discharge. This will result in serious bodily injury, death and property damage.

September 2013 iv P/N 81-CO2MAN-001

Installation

THIS SEQUENCE FOR CYLINDER INSTAL L A T ION MUST BE FOLLOWED AT ALL TIMES:

1. Position cylinder(s) in designed location and secure with cylinder bracket(s).

2. Remove safety (shipping) cap and actuation port protection cap.

3. Attach flex loops or swivel adapter to discharge heads. Connect assembly to system piping. Then  attach assembly to cylinders.

Flex hoses/swivel adapters must always be connected to the system piping and

WARNING

4. Verify control head(s) are in the set position.

to the discharge heads before attaching the discharge heads to the cylinder valves in order to prevent injury in the event of inadvertent carbon dioxide discharge.

WARNING

5. Install control head(s) on cylinder(s).

Removal From Service

1. Remove control head(s) from cylinder(s).

2. Remove discharge head from each cylinder valve.

3. Attach safety (shipping) protection cap and actuation port protection cap to each cylinder.

WARNING

4. Remove cylinder from bracketing and properly secure to hand truck. Properly secure each cylinder for transport. Repeat for remaining cylinders.

Control heads must be in the set position before attaching to the cylinder actuation port in order to prevent accidental discharge.

Do not remove the cylinder from the bracketing if the safety and protection caps are missing. Obtain a new safety (shipping) cap from a local gas supplier. Obtain a new actuation port protection cap from Kidde Fire Systems.

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September 2013 vi P/N 81-CO2MAN-001

TABLE OF CONTENTS

Foreword.......................................................................................................i

Terms and Abbreviations .................................................................................i

Material Safety Data Sheets .............................................................................i

Safety Summary.............................................................................................iii

Definitions .....................................................................................................iii

Subject: Specific Hazard..................................................................................iii

CHAPTER 1 GENERAL INFORMATION

1-1 Introduction.........................................................................................1-1

1-2 Classification of Fire ..............................................................................1-1

1-3 General Characteristics of the System.................................................. .... 1-1

1-4 System Description ...............................................................................1-2

1-5 Type of Suppression System................................................................... 1-2

1-5.1 Total Flooding.......................................................................................1-2

1-5.2 Local Application................................................................................... 1-2

1-6 General System Requirements................................................. ...............1-3

1-6.1 Safeguards ..........................................................................................1-3

1-6.1.1 Adequate Path of Egress ........................................................................1-3

1-6.1.2 Warning Signs and Personnel Education...................................................1-3

1-6.1.3 Pre-Discharge Time Delays and Alarms ....................................................1-4

1-6.1.4 Stop Valves and Lockout Valves.............................................................. 1-4

1-6.1.5 Post-Release Warnings and Procedures....................................................1-5

1-6.2 Storage ...............................................................................................1-5

1-6.3 Discharge Characteristics.......................................................................1-5

1-6.4 Actuation Methods ................................................................................1-6

1-7 Applications .........................................................................................1-6

1-8 Extinguishing Properties of Carbon Dioxide............................................... 1-7

1-9 Physical Properties of Carbon Dioxide ......................................................1-7

1-10 Clean-up..............................................................................................1-8

CHAPTER 2 COMPONENT DESCRIPTIONS

2-1 Fire Suppression System Components .....................................................2-1

2-2 CO2 Storage ........................................................................................2-1

2-2.1 Cylinder and Valve Assemblies................................... .............................2-1

2-2.1.1 Valves.................................................................................................2-4

2-2.1.2 Cylinder Filling .....................................................................................2-5

2-2.2 Discharge Heads...................................................................................2-7

2-2.2.1 Plain-nut Discharge Head.......................................................................2-7

2-2.2.2 Grooved-nut Discharge Head.................................................................. 2-8

2-2.3 Flexible Hoses ......................................................................................2-11

2-2.4 Swivel Adapter ..................................................................................... 2-12

2-2.5 Manifold “Y” Fitting................................................................................2-12

2-2.6 Cylinder Mounting Hardware...................................................... .............2-13

2-2.6.1 Single or Double Cylinder Arrangements ..................................................2-13

2-2.6.1.1 Single Cylinder Straps. ..........................................................................2-13

2-2.6.1.2 Double Cylinder Straps ............................................................. .............2-14

2-2.6.2 Multiple Cylinder Arrangements .............................................................2-15

2-2.6.2.1 Cylinder Rack and Framing, Example Arrangement....................... .............2-16

2-3 Actuation Components...........................................................................2-19

P/N 81-CO2MAN-001 vii September 2013

TABLE OF CONTENTS (CONT.)

2-3.1 Lever-Operated Control Head ....................................................... .......... 2-19

2-3.2 Cable-Operated Control Head ................................................................. 2-20

2-3.3 Manual Control Equipment ..................................................................... 2-21

2-3.3.1 Mechanical Pull Box............................................................................... 2-22

2-3.3.2 Mechanical Pull Box Z-Bracket ................................................................ 2-22

2-3.3.3 Corner Pulleys...................................................................................... 2-23

2-3.3.4 Tee Pulley............................................................................................ 2-23

2-3.3.5 Adapter............................................................................................... 2-24

2-3.3.6 Cable Housing ...................................................................................... 2-24

2-3.3.7 Dual Pull Mechanism ............................................................................. 2-25

2-3.3.8 Dual Pull Equalizer ................................................................................ 2-26

2-3.3.9 1/16-inch Pull Cable ............................................................................. 2-26

2-3.4 Electric Control Heads ...........................................................................2-27

2-3.4.1 Electric Control Heads ...........................................................................2-27

2-3.4.2 Electric and Cable-Operated Control Heads...............................................2-28

2-3.4.3 Explosion Proof Electric and Cable Operated Control Heads......................... 2-29

2-3.5 Pneumatic Control Heads ....................................................................... 2-30

2-3.5.1 Tandem Pneumatic Control Head ............................................................ 2-31

2-3.6 Components for Pneumatic Actuation Systems.......................................... 2-32

2-3.6.1 Pneumatic Cable Housing....................................................................... 2-32

2-3.6.2 Heat Actuated Detector .........................................................................2-33

2-3.6.3 Heat Collector ...................................................................................... 2-34

2-3.6.4 Vents .................................................................................................. 2-35

2-3.6.5 1/8-inch Copper Tubing ......................................................................... 2-36

2-3.6.5.1 Fittings................................................................................................ 2-36

2-3.6.5.2 Rubber Grommet.................................................................................. 2-37

2-3.6.6 3/16-inch Copper Tubing ....................................................................... 2-37

2-3.7 Pressure Operated Control Heads............................................................ 2-37

2-3.7.1 Pressure Operated Control Head ............................................................. 2-37

2-3.7.2 Lever and Pressure Operated Control Head...............................................2-38

2-3.7.3 Stackable Pressure Operated Control Head............................................... 2-39

2-3.8 Components for Pressure Operated Actuation Systems...............................2-40

2-3.8.1 Nitrogen Pilot Cylinder and Bracket .........................................................2-40

2-3.8.1.1 Nitrogen Pilot Cylinder, 108 cu. in. .......................................................... 2-40

2-3.8.1.2 Nitrogen Pilot Cylinder, 1040 cu. in. ........................................................ 2-40

2-3.8.1.3 Nitrogen Pilot Cylinder, 2300 cu. in. ........................................................ 2-41

2-3.8.2 Actuation Hose.................................................. ................................. ..2-41

2-3.8.3 Fittings................................................................................................ 2-41

2-4 Check Valves........................................................................................ 2-42

2-4.1 Check Valves (1/4-inch through 3/8-inch)................................................ 2-42

2-4.2 Check Valves (1/2-inch through 2-inch)................................................... 2-43

2-4.3 Check Valves (2 1/2-inch through 3-inch) ................................................ 2-44

2-4.3.1 2 1/2-inch Welding Neck Flange......................................... ..................... 2-45

2-4.3.2 3-inch Welding Neck Flange ................................................................... 2-45

2-4.3.3 3-Inch Flange Gasket ............................................................................2-45

2-4.3.4 Nuts and Bolts......................................................................................2-45

2-5 Directional (Stop) Valves .................................. ..................................... 2-46

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TABLE OF CONTENTS (CONT.)

2-5.1 Directional (Stop) Valves (1/2-inch through 2-inch)...................................2-46

2-5.2 Directional (Stop) Valves (2 1/2-inch through 4-inch)................................2-47

2-5.2.1 2 1/2-inch and 3-inch Valves..................................................................2-47

2-5.2.2 4-inch Valve....................................................................... ..................2-48

2-5.2.3 4-inch Flange ....................................................................................... 2-48

2-5.2.4 4-inch Gasket.................................... ................................. ..................2-48

2-5.2.5 Nuts and Bolts......................................................................................2-48

2-6 Lockout Valves ..................................................................................... 2-49

2-6.1 Lockout Valves without Limit Switches.....................................................2-49

2-6.2 Lockout Valves with Limit Switches.......................................................... 2-51

2-6.3 Lockout Valve with Explosion Proof Limit Switches..................................... 2-52

2-6.4 CO2 System Lockout Valve Operational Sign.............................................2-53

2-7 Discharge Nozzles.................................................................................2-53

2-7.1 Multijet Nozzle, Type S ..........................................................................2-53

2-7.1.1 Flanged Nozzle Mounting Kit, Type S Nozzle .............................................2-56

2-7.1.2 Aluminum Disc .....................................................................................2-59

2-7.1.3 Stainless Steel Disc...............................................................................2-59

2-7.2 Multijet Nozzle, Type M..........................................................................2-59

2-7.3 Vent Nozzle, Type V ..............................................................................2-61

2-7.3.1 Flange and Cover Assembly, Type V Nozzle ..............................................2-62

2-7.4 Multijet Nozzle, Type L......................................... ..................................2-62

2-8 Auxiliary Equipment ............................................ ................................ ..2-63

2-8.1 Pressure Operated Switches ................................................................... 2-64

2-8.2 Pressure Operated Trip..........................................................................2-65

2-8.3 Pneumatic Discharge Delay ............................................ ........................2-66

2-8.4 Pressure Operated Siren ........................................................................ 2-68

2-8.5 Safety Outlet........................................................................................2-69

2-8.6 Discharge Indicator............................................................................... 2-70

2-8.7 Odorizer Assembly ................................................................................2-71

2-8.8 Main to Reserve Transfer Switch .............................................................2-72

2-8.9 Weigh Scale....................................................... ................................ ..2-73

2-8.10 Recharge Adapter .................................................................................2-73

2-8.11 Blow-Off Fixture....................................................................................2-74

2-9 Instruction and Warning Plates ............................................................... 2-74

2-9.1 Main and Reserve Nameplates ................................................................ 2-74

2-9.2 Warning Signs......................................................................................2-75

2-9.2.1 Vacate Warning Sign, P/N 06-231866-851................................................2-75

2-9.2.2 Do Not Enter Warning Sign, P/N 06-231866-852.......................................2-76

2-9.2.3 Odorizer Warning Sign, P/N 06-231866-853.............................................2-76

2-9.2.4 Migration Warning Sign, P/N 06-231866-854............................................ 2-77

2-9.2.5 Storage Warning Sign, P/N 06-231866-855..............................................2-77

2-9.2.6 Actuation Warning Sign, P/N 06-231866-856............................................2-78

2-10 Hose Reel and Rack Systems.................................................................. 2-78

CHAPTER 3 DESIGN

3-1 Introduction.........................................................................................3-1

3-2 Hazard Survey, Definition and Analysis.................................................... 3-1

P/N 81-CO2MAN-001 ix September 2013

TABLE OF CONTENTS (CONT.)

3-3 Design for Safety.................................................................................. 3-2

3-4 Applications ......................................................................................... 3-2

3-4.1 Total Flooding System ........................................................................... 3-2

3-4.2 Local Application System .......................................................................3-3

3-4.3 Hand Hose Line Systems........................................................................3-3

3-5 Total Flooding Systems.......................................................................... 3-3

3-5.1 Introduction.........................................................................................3-3

3-5.1.1 Enclosure............................................................................................. 3-3

3-5.1.2 Ventilation ........................................................................................... 3-4

3-5.1.3 Interlocks ............................................................................................ 3-4

3-5.1.4 Interconnected Volumes ........................................................................ 3-4

3-5.2 Calculations for Surface Fires..................................................................3-4

3-5.2.1 Extinguishing Concentrations.................................................................. 3-4

3-5.2.2 Basic Total Flooding Quantity.................................................................. 3-6

3-5.2.2.1 Ducts and Covered Trenches ..................................................................3-7

3-5.2.3 Material Conversion Factor.....................................................................3-8

3-5.2.4 Special Conditions................................................................................. 3-10

3-5.2.4.1 Uncloseable Openings............................................................................3-10

3-5.2.4.2 Forced Ventilation................................................................................. 3-13

3-5.2.4.3 Extreme Temperatures.......................................................................... 3-14

3-5.2.5 Discharge Rates.................................................................................... 3-17

3-5.3 Calculations for Deep-Seated Fires.......................................................... 3-19

3-5.3.1 Flooding Factors ...................................................................................3-19

3-5.3.2 Special Conditions................................................................................. 3-20

3-5.3.2.1 Uncloseable Openings............................................................................3-21

3-5.3.2.2 Forced Ventilation................................................................................. 3-21

3-5.3.2.3 Extreme Temperatures.......................................................................... 3-21

3-5.3.3 Discharge Rates.................................................................................... 3-21

3-5.4 System Design ..................................................................................... 3-24

3-5.4.1 Occupancy........................................................................................... 3-24

3-5.4.2 Discharge Nozzles.................................................................................3-25

3-5.4.3 Pressure Relief Venting.......................................................................... 3-25

3-6 Local Application Systems......................................................................3-26

3-6.1 Carbon Dioxide Requirements................................................................. 3-26

3-6.1.1 Nozzle Location, Orientation, And Coverage Area ................................. ..... 3-26

3-6.1.2 Rate Of Discharge................................................................................. 3-26

3-6.1.3 Duration Of Liquid Discharge..................................................................3-26

3-6.1.4 Quantity Of Carbon Dioxide.................................................................... 3-27

3-6.2 Rate-by-Area Method ............................................................................ 3-27

3-6.2.1 Overhead Nozzles ................................. ................................................ 3-27

3-6.2.1.1 Nozzle Coverage and Carbon Dioxide Requirements................................... 3-27

3-6.2.1.2 Nozzle Positioning................................................................................. 3-35

3-6.2.2 Tankside Type "L" Nozzle.......................................................................3-36

3-6.2.2.1 Rate for Liquid Surface .......................................................................... 3-36

3-6.2.2.2 Rate for Coated Surface......................................................................... 3-38

3-6.2.2.3 Nozzle Coverage and Carbon Dioxide Requirements................................... 3-40

3-6.3 Rate by Volume Method......................................................................... 3-44

September 2013 x P/N 81-CO2MAN-001

TABLE OF CONTENTS (CONT.)

3-6.3.1 Assumed Enclosure ............................................................................... 3-44

3-6.3.2 Discharge Rate..................................................................................... 3-44

3-6.3.3 Nozzles................................................................................................3-49

3-6.4 Safeguards for Local Application Systems.................................................3-50

3-7 Combination Systems............................................................................3-51

3-8 Multiple Hazard Systems........................................................................3-53

3-9 Pressure Operated Sirens.......................................................................3-54

3-10 Extended Discharge Systems..................................................................3-55

3-10.1 Increased Agent Supply ........................................................................3-55

3-10.2 Secondary System ................................................................................3-55

3-10.3 Common Applications............................................................................3-56

3-10.3.1 Deep-Fat Cookers ......................................... ........................................ 3-56

3-10.3.2 Enclosed Rotating Electrical Equipment.................................................... 3-56

3-10.3.2.1 Recirculating Ventilation.........................................................................3-56

3-10.3.2.2 Dampered, Non-Recirculating Ventilation..................................................3-56

3-11 Agent Storage Banks.............................................................................3-57

3-11.1 Agent Supply........................................................................................3-57

3-11.2 Main and Reserve Supplies.....................................................................3-59

3-11.3 Cylinder Location ..................................................................................3-59

3-11.4 Single and Double Cylinder Arrangements................................................3-60

3-11.5 Multiple Cylinder Arrangements ..............................................................3-60

3-12 Manifold and Pipe Network Design......................................... ..................3-60

3-12.1 Pipe and Fitting Specifications.................................................................3-60

3-12.1.1 Pipe Specifications ................................................................................3-60

3-12.1.2 Fitting Specifications .............................................................................3-61

3-12.1.3 Tubing Specifications................................................................ .............3-61

3-12.1.4 Closed Piping Sections.............................. .............................................3-61

3-12.2 Pipe Size Estimates...............................................................................3-61

3-12.3 Pipe Hangers and Supports ....................................................................3-62

3-12.4 Cylinder Manifolds.................................................................................3-62

3-12.4.1 Manifold arrangements ..........................................................................3-62

3-12.4.1.1 End.....................................................................................................3-62

3-12.4.1.2 Center.................................................................................................3-62

3-12.4.1.3 H........................................................................................................3-63

3-12.4.1.4 Main And Reserve ................................................................................. 3-63

3-12.4.2 Manifold Pipe Selection ..........................................................................3-64

3-12.4.2.1 Single Pipe Size Manifolds......................................................................3-64

3-12.4.2.2 Stepped Pipe Size Manifolds ...................................................................3-64

3-12.4.3 Manifold Objects................................................................................... 3-64

3-12.4.3.1 Safety Outlets ...................................................................................... 3-64

3-12.4.3.2 Discharge Indicators.............................................................................. 3-65

3-12.4.3.3 Lockout Valve.......................................................................................3-65

3-12.4.3.4 Directional (Stop) Valves .......................................................................3-65

3-12.4.3.5 Pneumatic Discharge Delays...................................................................3-65

3-12.4.3.6 Pressure Operated Sirens.......................................................................3-66

3-12.4.3.7 Check Valves........................................................................................ 3-67

3-12.4.3.8 Pressure Operated Switches ................................................................... 3-67

P/N 81-CO2MAN-001 xi September 2013

TABLE OF CONTENTS (CONT.)

3-12.4.3.9 Odorizers............................................................................................. 3-67

3-12.5 Distribution Networks............................................................................ 3-67

3-12.5.1 Hydraulic Calculations ........................................................................... 3-67

3-12.5.2 Directional Valve Systems...................................................................... 3-68

3-12.5.3 Odorizer Assembly................................................................................3-68

3-12.5.4 Electrical Clearances ............................................. ................................3-68

3-13 Actuation System Design ....................................................................... 3-68

3-13.1 Discharge Heads................................................................................... 3-68

3-13.2 Cylinder Actuation...................................... ........................................... 3-68

3-13.2.1 Actuation With A Control Head................................... .............................3-68

3-13.2.2 Actuation With Manifold Backpressure...................................................... 3-68

3-13.3 Actuation Classifications ...................................................................... ..3-69

3-13.3.1 Automatic............................................................................................3-69

3-13.3.2 Normal Manual..................................................... ................................3-69

3-13.3.3 Emergency Manual........................................................... ..................... 3-70

3-13.4 Control Systems ...................................................................................3-70

3-13.4.1 Lever Operated Actuation....................................................................... 3-70

3-13.4.2 Cable Operated Actuation ...................................................................... 3-70

3-13.4.2.1 Tandem Control Heads .......................................................................... 3-71

3-13.4.2.2 Multiple Pull Stations............................................................................. 3-71

3-13.4.2.3 Multiple Cylinder Banks.......................................................................... 3-71

3-13.4.3 Pneumatic Heat Detector Operated Actuation............................................3-71

3-13.4.3.1 Tandem Control Heads .......................................................................... 3-72

3-13.4.3.2 Main and Reserve System Actuation........................................................ 3-72

3-13.4.4 Electrically Operated Actuation ............................................................... 3-72

3-13.4.5 Nitrogen Pressure Operated Actuation .....................................................3-72

3-13.4.5.1 Direct N2 Operation of CO2 Cylinders and Stop Valves............................... 3-72

3-13.4.5.2 Nitrogen Actuation with In-Line Discharge Delay ....................................... 3-73

3-14 Detection Devices, Alarm Devices And Control Panels ................................ 3-74

3-14.1 Suppression Control Panels ....................................................................3-74

3-14.2 System Power Supply............................................................................3-74

3-14.3 Automatic Detection.............................................................................. 3-75

3-14.4 Manual Controls....................................................................................3-75

3-14.5 Notification .......................................................................................... 3-75

3-14.6 Supervision of Controls.......................................... ................................3-75

3-14.7 Main and Reserve System Actuation........................................................ 3-75

3-15 Auxiliary Equipment and Systems ......................................................... ..3-76

3-15.1 Pressure Operated Switches................................................................... 3-76

3-15.2 Pressure Operated Trips......................................................................... 3-76

3-16 Hand Hose Line Systems........................................................................ 3-77

3-16.1 Uses ...................................................................................................3-79

3-16.2 Safety Requirements............................................................................. 3-79

3-16.3 Location ..............................................................................................3-80

3-16.4 System Design ..................................................................................... 3-80

3-16.4.1 Flow Rate ............................................................................................3-80

3-16.4.2 Minimum Agent Quantity .......................................... .............................3-81

3-16.4.3 Multiple Stations...................................................................................3-82

September 2013 xii P/N 81-CO2MAN-001

TABLE OF CONTENTS (CONT.)

3-16.4.4 Carbon Dioxide Supply ................................................ ..........................3-82

3-16.4.5 Actuation............................................................................................. 3-82

CHAPTER 4 INSTALLATION

4-1 Introduction.........................................................................................4-1

4-2 General Installation Requirements........................................................... 4-1

4-3 Installation of Suppression Systems ........................................................4-1

4-3.1 Discharge Pipe and Fittings ....................................................................4-1

4-3.2 Pressure Operated Actuation Pipe, Tubing and Fittings ............................... 4-2

4-3.3 Discharge Manifold................................................................................ 4-4

4-3.4 Manifold “Y” Fitting................................... ................................ .............4-5

4-3.5 Carbon Dioxide Cylinder Assemblies ........................................................4-5

4-3.6 Flexible Discharge Hose to Piping ......................................................... ..4-24

4-3.7 Swivel Adapter to Piping ........................................................................ 4-24

4-3.8 Discharge Head to Cylinder Valve............................................................4-25

4-3.9 Check Valves and Directional (Stop) Valves..............................................4-25

4-3.9.1 2-inch and Smaller Check Valves and Directional (Stop) Valves................... 4-25

4-3.9.2 2-1/2 inch and Larger Check Valves and Directional (Stop) Valves...............4-25

4-3.10 Lockout Valves ..................................................................................... 4-26

4-3.11 Pneumatic Discharge Delay ....................................................................4-26

4-3.12 Discharge Nozzles.................................................................................4-27

4-4 Actuation Systems ................................................................. ...............4-27

4-4.1 Lever Operated Control Head........................................................ .......... 4-27

4-4.2 Cable Operated Actuation System Components.........................................4-27

4-4.3 Cable Operated Control Head..................................................................4-29

4-4.4 Pull Boxes............................................................................................ 4-29

4-4.5 Main to Reserve Transfer Switch .............................................................4-30

4-4.6 Tandem Control Head............................................................................4-31

4-4.7 Electric Control Heads............................................................................4-32

4-4.8 Electric and Cable Operated Control Heads...............................................4-33

4-4.9 Pneumatic Heat Actuated Detection (HAD) System Components..................4-35

4-4.9.1 HAD....................................................................................................4-35

4-4.9.2 Tubing.................................................................................................4-36

4-4.9.3 Manometer Test Procedure.....................................................................4-38

4-4.9.4 Control Head Vent Test.......................................................................... 4-38

4-4.9.4.1 To Test Pneumatic Detectors And/or System Tubing For Tightness............... 4-39

4-4.9.4.2 Other Use For Manometer ......................................................................4-39

4-4.9.5 Heat Collector ...................................................................................... 4-39

4-4.10 Pneumatic Control Head................................................. ........................4-40

4-4.11 Nitrogen Actuation Station .....................................................................4-42

4-4.11.1 Installation of Nitrogen Cylinder, P/N WK-877940-000, and Mounting Bracket, P/N

WK-877845-0004-42

4-4.11.2 Nitrogen Pilot Cylinder Installation, 1040 cu. in. and 2300 cu. in., P/Ns 90-101040-

000 and 90-102300-1004-43

4-4.12 Pressure Operated Control Heads............................................................4-44

4-4.13 Lever and Pressure Operated Control Heads .............................................4-44

4-5 Auxiliary Components............................................................................ 4-45

4-5.1 Pressure Operated Switches ................................................................... 4-45

P/N 81-CO2MAN-001 xiii September 2013

TABLE OF CONTENTS (CONT.)

4-5.2 Pressure Operated Trip.......................................................................... 4-47

4-5.3 Pressure Operated Sirens....................................................................... 4-48

4-5.3.1 CO2 Pressure Operated Siren ................................................................. 4-48

4-5.3.2 N2 Pressure Operated Siren ................................................................... 4-49

4-5.4 Odorizer .............................................................................................. 4-50

4-5.5 Safety Outlet........................................................................................ 4-51

4-5.6 Discharge Indicator............................................................................... 4-51

4-6 Hose Reel/Rack .................................................................................... 4-52

4-7 Commissioning The Carbon Dioxide System......................................... ..... 4-55

4-7.1 Pre-Commission Inspection.................................................................... 4-55

4-7.2 Commissioning Procedure ................................... ...................................4-56

4-7.3 Enclosure Inspection .............................................................................4-56

4-7.4 System Inspection ................................................................................4-56

4-7.5 Labeling .............................................................................................. 4-57

4-7.6 Operational Tests of the Individual Components........................................ 4-57

4-7.7 Full Discharge Test................................................................................4-58

4-7.8 Commissioning the System ....................................................................4-58

4-7.9 References and Checklists...................................................................... 4-58

CHAPTER 5 OPERATION

5-1 Introduction.........................................................................................5-1

5-2 Automatic Operation ............................................................................. 5-1

5-3 Manual Operation .................................................................................5-1

5-3.1 Cable Operated Systems ........................................................................ 5-1

5-3.2 Electric Systems ...................................................................................5-1

5-3.3 Systems Equipped with Remote Nitrogen Actuator..................................... 5-2

5-4 Emergency Operation............................ ................................ ................ 5-2

5-4.1 Local Manual Operation - All Systems ...................................................... 5-2

5-5 Hose Reel or Rack Systems.................................................................... 5-3

5-5.1 Remote Manual Operation...................................................................... 5-3

5-5.2 Local Manual Operation ......................................................................... 5-4

5-6 Main and Reserve Systems..................................................................... 5-5

5-7 Lockout Valves ..................................................................................... 5-5

CHAPTER 6 MAINTENANCE

6-1 General ...............................................................................................6-1

6-2 Preventive Maintenance......................................................................... 6-1

6-3 Inspection Procedures - Monthly .............................................................6-2

6-4 Semi-Annual Weighing of CO2 Cylinders .................................................. 6-4

6-4.1 Weighing (using Kidde Fire Systems Weigh Scale)..................................... 6-4

6-4.2 Weighing (without Kidde Fire Systems Weigh Scale).................................. 6-5

6-4.3 Electric Control Head Test......................................................................6-6

6-4.4 Pressure Switch Test.............................................................................6-6

6-4.5 Verify Odorizer Cartridge ....................................................................... 6-7

6-5 Annual Maintenance..............................................................................6-7

6-5.1 Equipment Inspection............................................................................ 6-7

6-5.2 Distribution Piping Blow Out................................................................... 6-7

6-5.3 Complete System Inspection ..................................................................6-7

September 2013 xiv P/N 81-CO2MAN-001

TABLE OF CONTENTS (CONT.)

6-5.4 Pneumatic Detection System Tests..........................................................6-8

6-5.4.1 Pneumatic Control Head Test - Pressure Setting........................................6-8

6-5.4.2 Control Head Vent Test.......................................................................... 6-9

6-5.4.3 Test for Leakage of System Tubing and Detectors ..................................... 6-9

6-5.4.4 Troubleshooting of Pneumatic Detection System .......................................6-10

6-6 5 Year and 12 Year Inspection and Test Guidelines.................................... 6-10

6-6.1 Carbon Dioxide and Nitrogen Cylinders ....................................................6-10

6-6.1.1 Carbon Dioxide Cylinders ............................... ........................................ 6-11

6-6.1.2 Nitrogen Cylinders ................................................................................ 6-11

6-6.2 Flexible Hoses ......................................................................................6-11

6-6.3 Cleaning..............................................................................................6-11

6-6.4 Nozzle Service......................................................................................6-11

6-7 Repairs................................................................................................ 6-12

6-8 Removal of Cylinders............................................................................. 6-12

6-8.1 CO2 Cylinders ......................................................................................6-12

6-8.2 Nitrogen Pilot Cylinders..........................................................................6-12

6-9 Installation of Cylinders ......................................................................... 6-13

6-9.1 CO2 Cylinders ......................................................................................6-13

6-9.2 Nitrogen Pilot Cylinders..........................................................................6-13

CHAPTER 7 POST-DISCHARGE MAINTENANCE

7-1 General ...............................................................................................7-1

7-2 Post Fire Maintenance....................................................... .....................7-1

7-3 Cylinder Recharge............................................ ..................................... 7-2

7-3.1 Carbon Dioxide Agent............................................................................7-3

7-3.2 CO2 Cylinders ......................................................................................7-3

7-3.2.1 CO2 Cylinder Leak Test..........................................................................7-4

7-4 Nitrogen Pilot Cylinder, 108 CU. IN., Service and Maintenance ....................7-6

7-4.1 Nitrogen Cylinder Replacement...............................................................7-6

7-4.2 Nitrogen Cylinder Recharge....................................................................7-7

7-4.3 Nitrogen Cylinder Installation .................................................................7-7

7-5 Hose Reel or Rack System......................................................................7-8

CHAPTER 8 PARTS LIST

8-1 Parts list.............................................................................................. 8-1

APPENDIX A FORMULA DERIVATIONS

A-1 Theoretical CO2 Extinguishing Concentration for a Total Flooding System..... A-1

A-2 Quantity of CO2 Required for a Total Flooding System Under a Free Efflux Flooding

ConditionA-1

A-3 Derivation of the Material Conversion Factor (MCF)....................................A-2

A-4 Rate of Carbon Dioxide Loss Through an Opening in an Enclosure................A-2

A-5 Discharge Rates for Deep Seated Fires.....................................................A-3

APPENDIX B OBSOLETE EQUIPMENT

B-2 Obsolete Equipment ..............................................................................B-1

B-3 Mercury Check.............................................. ........................................B-1

B-3.1 Description ..........................................................................................B-1

B-3.2 Installation...........................................................................................B-3

P/N 81-CO2MAN-001 xv September 2013

TABLE OF CONTENTS (CONT.)

B-4 Pneumatic Transmitter .......................................................... ................B-4

B-4.1 Description ..........................................................................................B-4

B-4.2 Installation ..........................................................................................B-5

B-5 Pneumatic Control Head (1-inch, 40-second).......................... ..................B-6

B-5.1 Description ..........................................................................................B-6

B-5.2 Installation ..........................................................................................B-6

B-6 Pneumatic Main-to-Reserve Valve ...........................................................B-7

B-7 Lockout Valves .....................................................................................B-8

B-7.1 Lockout Valve Installation ......................................................................B-9

B-7.1.1 Stem Seal Adjustment........................................................... ................B-9

B-7.1.2 Wiring Diagram ....................................................................................B-10

B-7.2 Lockout Valves Maintenance...................................................................B-10

B-8 Odorizer, 1.5" NPT Housing and Glass Cartridge........................................B-11

B-8.1 Odorizer Protective Housing ...................................................................B-11

B-8.2 Odorizer Cartridge ................................................................................B-11

B-8.3 Odorizer Installation..............................................................................B-12

B-8.4 Semi-annual Maintenance for Odorizer Cartridge.......................................B-13

B-8.5 Post Discharge Odorizer Maintenance ......................................................B-13

APPENDIX C EUROPEAN EQUIPMENT

C-1 Introduction.........................................................................................C-1

APPENDIX D EQUIVALENT LENGTH

D-1 Valve and Delay Equivalent Length..........................................................D-1

September 2013 xvi P/N 81-CO2MAN-001

LIST OF FIGURES

Figure Name Page Number

2-1 25 through 50 lb. Carbon Dioxide Cylinders, Bent Siphon Tube .................................. 2-2

2-2 75 and 100 lb. Carbon Dioxide Cylinder, Straight Siphon Tube................................... 2-3

2-3 I/2-inch Type “I” Cylinder Valve............................................................................. 2-4

2-4 5/8-inch Type “I” Cylinder Valve............................................................................ 2-5

2-5 Pressure vs. Temperature for CO2 Cylinders....................................... .....................2-6

2-6 Discharge Head, Plain Nut.....................................................................................2-7

2-7 Installation of Plain Nut Discharge Head to Cylinder Valve ......................................... 2-8

2-8 Discharge Head, Grooved Nut................................................................................2-9

2-9 Installation of Grooved Nut Discharge Head to Cylinder Valve....................................2-10

2-10 1/2-inch Flex Hose ...............................................................................................2-11

2-11 3/4-inch Flex Hose ...............................................................................................2-11

2-12 Swivel Adapter....................................................................................................2-12

2-13 Manifold “Y” Fitting .............................................................................................. 2-12

2-14 Single Cylinder Straps............................................... ........................................... 2-13

2-15 Double Cylinder Straps.........................................................................................2-14

2-16 Multiple Cylinder Mounting, Arrangement A .............................................................2-15

2-17 Multiple Cylinder Mounting, Arrangement B .............................................................2-15

2-18 Multiple Cylinder Mounting, Arrangement C .............................................................2-16

2-19 Cylinder Rack and Framing, Example Arrangement...................................................2-18

2-20 Lever-Operated Control Head ................................................................................2-20

2-21 Cable-Operated Control Head................................................................................2-21

2-22 Cable-Operated Control Heads in Tandem............................................................... 2-21

2-23 Mechanical Pull Box..............................................................................................2-22

2-24 Mechanical Pull Box Bracket ..................................................................................2-22

2-25 Corner Pulleys.....................................................................................................2-23

2-26 Tee Pulley...........................................................................................................2-24

2-27 EMT Adapter ....................................................................................................... 2-24

2-28 Cable Housing.....................................................................................................2-25

2-29 Dual Pull Mechanism ............................................................................................2-25

2-30 Dual Pull Equalizer...............................................................................................2-26

2-31 Electric Control Head............................................................................................2-27

2-32 Electric Control Head (Cover Removed)...................................................................2-28

2-33 Electric and Cable-Operated Control Head ............................................................... 2-29

2-34 Explosion Proof Electric and Cable Operated Control Head.........................................2-30

2-35 Pneumatic Control Head .................................... ...................................................2-31

2-36 Tandem Pneumatic Control Head ............................................................ ...............2-32

2-37 Pneumatic Cable Housing......................................................................................2-33

2-38 Heat Actuated Detector (HAD), Industrial................................................................2-34

2-39 Heat Collector .....................................................................................................2-35

2-40 Fittings...............................................................................................................2-36

2-41 3/16-inch Pneumatic Tubing..................................................................................2-37

2-42 Pressure Operated Control Head............................................................................2-38

2-43 Lever and Pressure Operated Control Head..............................................................2-39

2-44 Stackable Pressure Operated Control Head....................................................... ....... 2-40

2-45 1/4-inch Actuation Hose ....................................................................................... 2-41

2-46 Fittings...............................................................................................................2-42

2-47 Check Valves (1/4-inch and 3/8-inch).....................................................................2-42

2-48 Check Valves (1/2-inch to 1-1/4-inch)....................................................................2-43

2-49 Check Valves (1-1/2-inch to 2-inch).......................................................................2-44

2-50 Check Valves (2 1/2-inch to 3-inch) .......................................................................2-45

2-51 Directional (Stop) Valves (1/2-inch through 2-inch)..................................................2-46

2-52 Directional (Stop) Valves (2-1/2-inch and 3-inch).....................................................2-47

2-53 Directional (Stop) Valve (4-inch)............................................................................2-48

P/N 81-CO2MAN-001 xvii September 2013

LIST OF FIGURES (CONT.)

Figure Name Page Number

2-54 Lockout Valves without Limit Switches.................................................................... 2-49

2-55 Lockout Valves with Lock......................................................................................2-50

2-56 Lockout Valves with Limit Switches ........................................................................ 2-51

2-57 Lockout Valve with Explosion Proof Limit Switches.................................................... 2-52

2-58 CO2 System Lockout Valve Operational Sign ........................................................... 2-53

2-59 Multijet Nozzle, Type S.........................................................................................2-55

2-60 Multijet Nozzle, Type S Flanged ............................................................. ................ 2-56

2-61 Flanged Nozzle Mounting Kit (Orifice Protection Only) ............................................... 2-57

2-62 Flanged Nozzle Mounting Kit (Duct or Enclosure Mounting)........................................2-58

2-63 Flange Mounting Hole Pattern................................................................................ 2-59

2-64 Multijet Nozzle, Type M......................................................................................... 2-60

2-65 Vent Nozzle, Type V............................................................................................. 2-61

2-66 Flange and Cover Assembly, Type “V” Nozzle...........................................................2-62

2-67 Multijet Nozzle, Type L .............................................. ........................................... 2-63

2-68 Pressure Operated Switch.....................................................................................2-64

2-69 Pressure Operated Switch, Explosion Proof......................................... ..................... 2-65

2-70 Pressure Operated Trip......................................................................................... 2-65

2-71 Pneumatic Discharge Delay...................................................................................2-66

2-72 Pneumatic Discharge Delay, Detail........................... .............................................. 2-67

2-73 Pneumatic Discharge Delay with Manual Control Head ..............................................2-68

2-74 Pressure Operated Siren.......................................................................................2-69

2-75 Safety Outlet ...................................................................................................... 2-70

2-76 Discharge Indicator.............................................................................................. 2-70

2-77 Odorizer Assembly............................................................................................... 2-71

2-78 Main to Reserve Transfer Switch......................... ................................................... 2-72

2-79 Weigh Scale....................................... ................................. ................................2-73

2-80 Charging Adapter................................................................................................. 2-73

2-81 Blow-Off Fixture .................................................................................................. 2-74

2-82 Main and Reserve Nameplates............................................................................... 2-75

2-83 Sign in Every Protected SpaceW ............................................................................ 2-75

2-84 Sign at Every Entrance to Protected SpaceW ........................................... ................ 2-76

2-85 Sign at Every Entrance to Protected Space for Systems with a Wintergreen OdorizerW.. 2-76

2-86 Sign in Every Nearby Space Where CO2 Can Accumulate to Hazardous LevelsW........... 2-77

2-87 Sign Outside Each Entrance to CO2 Storage RoomsW ............................................... 2-77

2-88 Sign at Each Manual Actuation StationW................................................................. 2-78

2-89 Hose-to-Hose Reel Connection............................................................................... 2-79

2-90 Hose-to-Pipe Rack Connection............................................................................... 2-80

2-91 Hose Assembly.................................................................................................... 2-81

2-92 Horn and Valve Assembly ............................................................. ........................ 2-82

2-93 Handle and Horn Clips..........................................................................................2-83

2-94 Model HR-1 Instruction Plate................................................................................. 2-84

3-1 Minimum Design CO2 ConcentrationW.................................................................... 3-8

3-2 Calculated CO2 Loss RateW................................................................................... 3-11

3-3 Nozzle Aiming ..................................................................................................... 3-35

3-4 Partial Enclosure Flow Rate Reduction*......................................... .......................... 3-45

3-5 Nozzle Placement Example................................................................................... 3-50

3-6 Example of an "End" Manifold................................................................................ 3-62

3-7 Example of a "Center" Manifold................... ...........................................................3-63

3-8 Example of an "H" Manifold................................................................................... 3-63

3-9 Example of a "Main and Reserve" "End" Manifold ........................................... .......... 3-64

3-10 Lockout Valve Release Circuit Wiring...................................................................... 3-65

3-11 Pilot Cylinder Position within Manifold.....................................................................3-69

3-12 Typical Actuation Arrangement Using In-line Discharge Delay.................................... 3-74

September 2013 xviii P/N 81-CO2MAN-001

LIST OF FIGURES (CONT.)

Figure Name Page Number

3-13 Pressure Trip Applications.....................................................................................3-77

3-14 Typical Hand Hose Line System with Rack...............................................................3-78

3-15 Typical Hand Hose Line System with Reel................................................................ 3-79

4-1 Typical Manifold Layout ........................................................................................ 4-4

4-2 Manifold “Y” Fitting .............................................................................................. 4-5

4-3 Typical Cylinder Strap Location..............................................................................4-6

4-4 Rack Framing - 3 to 6 Cylinders (50 and 75 lb. Capacity), Single Row......................... 4-7

4-5 Rack Framing - 7 to 12 Cylinders (50 and 75 lb. Capacity), Single Row ....................... 4-8

4-6 Cylinder Racks (50 and 75 lb. Capacity), Single Row.................................................4-9

4-7 Rack Framing - 5 to 12 Cylinders (50 and 75 lb. Capacity), Double Row (One Side) ...... 4-10

4-8 Rack Framing - 13 to 24 Cylinders (50 and 75 lb. Capacity), Double Row (One Side) .... 4-11

4-9 Cylinder Racks (50 and 75 lb. Capacity), Double Row (One Side) ............................... 4-12

4-10 Rack Framing - 5 to 12 Cylinders (50 and 75 lb. Cap ac it y ), Double Row (Two Sides).. .. . 4-13

4-11 Rack Framing - 13 to 24 Cylinders (50 and 75 lb. Capacity), Double Row (One Side) .... 4-14

4-12 Cylinder Racks (50 and 75 lb. Capacity), Double Row (Two Sides)..............................4-15

4-13 Rack Framing -3 to 5 Cylinders (100 lb. Capacity), Single Row...................................4-16

4-14 Rack Framing - 6 to 10 Cylinders (100 lb. Capacity), Single Row................................ 4-17

4-15 Rack Framing - 11 to 15 Cylinders (100 lb. Capacity), Single Row ..............................4-18

4-16 Cylinder Racks (100 lb. Capacity), Single Row .........................................................4-19

4-17 Rack Framing - 5 to 10 Cylinders (100 lb. Capacity), Double Row (One Side)............... 4-20

4-18 Rack Framing - 11 to 20 Cylinders (100 lb. Capacity), Double Row (One Side)............. 4-21

4-19 Rack Framing - 21 to 30 Cylinders (100 lb. Capacity), Double Row (One Side)............. 4-22

4-20 Cylinder Racks (100 lb. Capacity), Double Row (One Side) ........................................4-23

4-21 Swivel Adapter to Piping.......................................................................................4-24

4-22 Wiring Diagram for Lockout Valve when Ball Valve is in Fully Open Position ................. 4-26

4-23 Wiring Diagram with Single Solenoid (Main and Reserve) ...................................... .... 4-30

4-24 Wiring Diagram with Dual Solenoid (Main and Reserve) ............................................4-30

4-25 Cable Operated Control Heads....................................................... ........................4-31

4-26 Electric Control Heads ..........................................................................................4-32

4-27 Electric and Cable Operated Control Heads.............................................................. 4-34

4-28 Pneumatic Detector (HAD).................................................................................... 4-36

4-29 Manometer Pneumatic Detection............................................................................4-37

4-30 Heat Collector .....................................................................................................4-39

4-31 Pneumatic Control Head .................................... ...................................................4-41

4-32 Tandem Pneumatic Control Head ............................................................ ...............4-42

4-33 Typical 1040 and 2300 cu. in. Pilot (Driver) Cy linder Strap Installation (P/N 90-101040-000 and

90-102300-100)4-43

4-34 Pressure Operated Control Heads...........................................................................4-44

4-35 Lever and Pressure Operated Control Heads ............................................................4-45

4-36 Pressure-Operated Switches........................................................ ..........................4-46

4-37 Pressure Operated Switches, Explosion Proof...........................................................4-47

4-38 Pressure Operated Trip.........................................................................................4-47

4-39 Pressure Operated Siren.......................................................................................4-48

4-40 Odorizer Installation.............................................................................................4-50

4-41 Safety Outlet.......................................................................................................4-51

4-42 Discharge indicator ..............................................................................................4-51

4-43 Hose Reel Installation...........................................................................................4-52

4-44 Hose Rack Installation..........................................................................................4-53

4-45 Hose Assembly....................................................................................................4-53

4-46 Horn and Valve Assembly .....................................................................................4-54

4-47 Handle and Horn Clips..........................................................................................4-54

6-1 Nitrogen Temperature vs. Pressure Data.................................................................6-4

6-2 Carbon Dioxide Cylinder Weighing Scale .................................................................6-5

P/N 81-CO2MAN-001 xix September 2013

LIST OF FIGURES (CONT.)

Figure Name Page Number

6-3 Manometer Pneumatic Detection............................................................................ 6-8

7-1 I/2-inch Type “I” Cylinder Valve............................................................................. 7-5

7-2 5/8-inch Type “I” Cylinder Valve............................................................................ 7-6

B-1 3-Well Mercury Check .......................................... ................................................B-2

B-2 3-Well Mercury Check - Installation Detail...............................................................B-3

B-3 Pneumatic Transmitter .........................................................................................B-5

B-4 Pneumatic Control Head (1-inch, 40-second)...........................................................B-6

B-5 Pneumatic Main-to-Reserve Valve..........................................................................B-7

B-6 CO2 Lockout Valve with Limit Switch......................................................................B-8

B-7 Switch When Ball Valve is in Fully Open Position ......................................................B-10

B-8 Switch When Ball Valve is in Fully Closed Position ....................................................B-10

B-9 Odorizer Protective Housing..................................................................................B-11

B-10 Odorizer Cartridge ............................................................................................... B-11

B-11 Odorizer Installation.............................................................................................B-12

September 2013 xx P/N 81-CO2MAN-001

LIST OF TABLES

Table Name Page Number

1-1 Physical Properties of Carbon Dioxide .....................................................................1-8

2-1 Safety Disc Information........................................................................................2-4

2-2 CO2 and H20 Capacity Correlation .........................................................................2-6

2-3 Single Cylinder Strap Dimensions...........................................................................2-13

2-4 Double Cylinder Strap Dimensions.......................................................................... 2-14

2-5 Framing Kits - One Row, 3 through 15 Cylinders ......................................................2-17

2-6 Cable Housing Part Numbers................................................................................. 2-25

2-7 1/16-inch Pull Cable Lengths.................................................................................2-26

2-8 Electric Control Head ............................................................................................2-28

2-9 Electric and Cable Operated Control Head ...............................................................2-29

2-10 Explosion Proof Control Head.................................................................................2-30

2-11 Pneumatic Control Head Settings...........................................................................2-31

2-12 Pneumatic Cable Housing Part Numbers.................................................................. 2-33

2-13 Vent Size ............................................................................................................2-35

2-14 1/8-inch Copper Tubing Part Numbers....................................................................2-36

2-15 3/16-inch Copper Tubing Part Numbers ..................................................................2-37

2-16 1/4-inch Actuation Hose Part Numbers ...................................................................2-41

2-17 Check Valve Dimensions (1/4-inch through 3/8-inch) ...............................................2-43

2-18 Check Valve Dimensions (1/2-inch through 1-1/4-inch) ............................................2-43

2-19 Check Valve Dimensions (1-1/2-inch through 2-inch) ...............................................2-44

2-20 Check Valve Dimensions (1 1/2-inch through 2-inch)................................................ 2-47

2-21 Carbon Steel Lockout Valves without Limit Switches Dimensions and Part Numbers...... 2-50

2-22 Stainless Steel Lockout Valves without Limit Switches Dimensions and Part Numbers.... 2-50

2-23 Carbon Steel Lockout Valves with Limit Switches Dimensions and Part Numbers........... 2-51

2-24 Stainless Steel Lockout Valves with Limit Switches Dimensions and Part Numbers ........ 2-51

2-25 Carbon Steel Lockout Valve with Explosion Proof Limit Switches Dimensions and Part Numbers 2-52 2-26 Stainless Steel Lockout Valve with Explosio n Proof Limit Switches Dimensions and Part Numbers 2-52

2-27 Type S Nozzles....................................................................................................2-54

2-28 Flanged Nozzle Mounting Kit BOM ..................................... ..................................... 2-56

2-29 Type M Nozzles ...................................................................................................2-60

2-30 Type V Vent Nozzles.................................. ...........................................................2-61

2-31 Type L Nozzles .................................................................................................... 2-63

2-32 Pneumatic Discharge Delay Part Numbers ...............................................................2-66

2-33 Hose Reel and Rack System Part Numbers ..............................................................2-78

3-1 Minimum Carbon Dioxide Concentrations for Extinguishment .....................................3-4

3-2 Volume Factors - Surface Fires (For 34% CO2 Concentration), US Units...................... 3-6

3-2 Volume Factors - Surface Fires (For 34% CO2 Concentration), Metric Units..................3-7

3-3 Volume Factors for Deep Seated Hazards................................................................ 3-20

3-4 Type “M” Multijet Nozzle (US Units)........................................................................3-29

3-4 Type “M” Multijet Nozzle (Metric Units) ................................................................... 3-30

3-5 Type “S” Multijet Nozzle (US Units) ........................................................................3-31

3-5 Type “S” Multijet Nozzle (Metric Units).................................................................... 3-32

3-6 Aiming Factors for Angular Placement of Nozzles1....................................................3-35

3-7 Liquid Surfaces1 (US Units)...................................................................................3-36

3-7 Liquid Surfaces1 (Metric Units)............................................ ..................................3-37

3-8 Coated Surfaces1 (US Units).................................................................................3-38

3-8 Coated Surfaces1 (Metric Units)............................................................................. 3-39

3-9 Pipe Size Estimates..............................................................................................3-61

3-10 Siren Driver Cylinder Actuation Limits.....................................................................3-66

3-11 Control Head Actuation Features............................................................................ 3-70

3-12 Corner Pulley Quantity and Cable Length Limits .......................................................3-71

P/N 81-CO2MAN-001 xxi September 2013

LIST OF TABLES (CONT.)

Table Name Page Number

3-13 Nitrogen Pilot Line Length Limitations..................................................................... 3-73

3-14 Equivalent Lengths of Hand Hose Line Components (US Units)...................................3-80

3-15 Equivalent Lengths of Hand Hose Line Components (Metric Units) .............................. 3-81

4-1 Maximum Horizontal Pipe Hanger and Support Bracing1............................................ 4-3

4-2 Maximum Pipe Hanger and Support Design Load Ratings........................................... 4-4

4-3 Typical Cylinder Strap Location Dimensions.............................................................4-6

4-4 Corner Pulley and Cable Limitations........................................................................ 4-28

4-5 1040 and 2300 cu. in. Nitrogen Pilot (Driver) Cylinder Strap Installation ..................... 4-43

4-6 Siren Driver Cylinder Actuation Limits..................................................................... 4-49

6-1 Preventive Maintenance Schedule ..........................................................................6-2

8-1 Cylinders and Associated Equipment.......................................................................8-1

8-2 Manual and Pressure Control Equipment ................................................................. 8-2

8-3 Electric Control Equipment....................................................................................8-2

8-4 Remote Control Equipment, Cable.......................................................................... 8-2

8-5 Pneumatic Control Equipment.................................. ................................. ............. 8-3

8-6 Check Valves ...................................................................................................... 8-4

8-7 Directional (Stop) Valves ......................................................................................8-4

8-8 Lockout Valves.................................................................................................... 8-5

8-9 Hose Equipment .................................................................................................. 8-6

8-10 Auxiliary Equipment................................................................................... .......... 8-6

8-11 Carbon Dioxide Computer Program ........................................................................ 8-7

8-12 Manuals ............................................................................................................. 8-7

8-13 Maintenance and Repair Parts................................................................................8-7

8-14 Carbon Dioxide Nozzles ............................... ......................................................... 8-8

8-15 Nozzle Identification.............................................................................................8-8

8-16 Carbon Dioxide Nozzles, Accessories ...................................................................... 8-9

8-17 CO2 Valves Maintenance, Repair and Spare Parts.....................................................8-9

8-18 Cylinder Rack and Framing Components ............................................ ..................... 8-10

8-19 Framing Kits - One Row, 3 through 15 Cylinders......................................................8-13

8-20 Framing Kits - Two Rows (One Side), 5 through 17 Cylinders.....................................8-14

8-21 Framing Kits - Two Rows (One Side), 18 through 30 Cylinders................................... 8-15

B-1 Pneumatic Control Head (1-inch, 40-second), Settings..............................................B-6

B-2 CO2 Lockout Valve with Limit Switch Specifications ..................................................B-9

C-1 TPED and PED Approved Equipment for European Community Only*...........................C-1

September 2013 xxii P/N 81-CO2MAN-001

General Information

GENERAL INFORMATION

1-1 INTRODUCTION

The Kidde Fire Systems carbon dioxide fire suppression system is an engineered, specialhazard system utilizing a fixed pipe and nozzle distribution network, hose reels, or a combination of both. These systems provide fire protection, using carbon dioxide (CO extinguishant, designed in accordance with the National Fire Protection Association (NFPA) 12, "Standard on Carbon Dioxide Extinguishing Systems", (latest edition). All components referenced in this manual are listed by Underwriters Laboratories (UL) and approved by Factory Mutual (FM), unless as noted.

1-2 CLASSIFICATION OF FIRE

The classification of fire is defined as the following:

• Class A: Surface Type Fires; wood or other cellulose-type material (ordinary combustibles)

• Class B: Flammable liquids

• Class C: Energized electrical equipment

• Class D: Combustible metals (such as magnesium, sodium, zirconium, potassium, and titanium, or reactive metals, metal hydrides and chemicals containing their own oxygen supply)

• Class K: Combustible cooking med i a (v eg etable or animal oils and fats)

Note: Kidde Fire Systems carbon dioxide fire suppression system is not suited for Class D type

of fires.

CHAPTER 1

) as the

Carbon dioxide is an effective agent for Class A, Class B, Class C, and Class K hazards. Carbon dioxide must be applied with due consideration of the hazard b eing protected and its contents. Carbon dioxide shall not be used on Class D hazards, such as magnesium, potassium, sodium, and cellulose nitrate. These Class D hazards can only be controlled by special extinguishing agents and procedures.

1-3 GENERAL CHARACTERISTICS OF THE SYSTEM

Carbon dioxide fire suppression systems are used for applications where the potential prop erty damage and business interruption from fire are high. Carbon dioxide can c ontrol and supp ress fires in easily ignitable fast-burning substances such as flammable liquids. It is also used on fires involving electrically energized equipment and, in some instances, on fires in ordinary combustibles such as paper, cloth, and other cellulose materials.

Carbon dioxide is a colorless, odorless, electrically non-conductive gas with a density approximately 50% greater than air. When applied to a fire, it provides a blanket of heavy gas which reduces the oxygen content of the atmosphere to a point in which combustion can not be sustained.

P/N 81-CO2MAN-001 1-1 September 2013

General Information

Carbon dioxide is present in the atmosphere. It is also a normal product of human and animal metabolism; human life cannot be sustained if this carbon dioxide is not expelled from the body. The concentration of carbon dioxide in

WARNING

1-4 SYSTEM DESCRIPTION

the air governs the rate at which the carbon dioxide produced by the human metabolism is released from the lungs. An increasing concentration in the air where humans are present, therefore, can cause serious personal injury or death.

Carbon dioxide offers many advantages as a fire suppressant. It is a clean agent, does not leave a residue, and does not wet material or machinery upon which it is discharged, helping keep costly cleanup or downtime to a minimum. Carbon dioxide may be stored from 0 18

°C) to 130°F (54°C). Carbon dioxide does not deteriorate and is non-corrosive. It is readily

available throughout the world and is inexpensive. Carbon dioxide is effective for the rapid suppression of Class A (surface or deep seated), B, and C fires and offers a wide range of hazard protection.

Carbon dioxide is stored in steel cylinders as a liquid under its own vapor pressure which is approximately 850 psi at 70°F. This pressure is used to propel the agent out of the container and through the valve, piping, and nozzles during the discharge. When released, carbon dioxide will change from a liquid to a gas and expand. The ratio of this expansion is high; approximately 9 to 1. This allows a large volume of carbon dioxide to be stored in a small container, minimizing space taken up by the system equipment.

°F (-

Kidde Fire Systems engineered c arbon dioxide suppression syst ems may be manually operated or integrated with detection and control devices for automatic operation. A single carbon dioxide fire suppression system can protect single or multiple hazards by total flooding, local application, or a combination of both.

1-5 TYPE OF SUPPRESSION SYSTEM

There are two types of fixed carbon dioxide systems: total flooding and local application.

1-5.1 Total Flooding

In a total flooding system, a predetermined amount of carbon dioxide is discharged through fixed piping and nozzles into an enclosed space or enclosure around the hazard. Total flooding is applicable when the hazard is totally enclosed and when all openings surrounding the hazard can be closed automatically prior to or at the start of system discharge. If all the openings cannot be closed, additional carbon dioxide must be provided to compensate for agent loss through these openings during the discharge and appropriate concentration retention periods. The carbon dioxide concentration must be maintained for a sufficient period of time to allow the fuel and any other surfaces or equipment in contact with the fuel to cool below the igni tion temperature of the combustibles.

1-5.2 Local Application

Local application systems differ from total flooding in that the nozzles are arranged to discharge directly onto the fire. Local application is practical in those situations where the protected equipment can be isolated from other combustibles so that fire will not spread beyond the area protected, and where the entire hazard can be protected. One of the principal uses of local-application systems is to protect open tanks containing flammable liquids, but this technique can be generalized to protect three-dimensi onal hazards such as paint spray booths and printing presses. Suppression by local application is transitory, and will not be effective unless suppression occurs quickly and all potential re-ignition sources are eliminated.

September 2013 1-2 P/N 81-CO2MAN-001

Carbon dioxide systems can also consist of hand hose lines permanently connected by means of fixed piping to a fixed supply of suppression agent. These systems are frequently provided for manual protection of small, localized equipment. Although not a substitute for a fixed system, a hose line can be used to supplement a fixed system where the hazard is accessible for manual firefighting.

1-6 GENERAL SYSTEM REQUIREMENTS

The discharge of carbon dioxide in fire suppression concentrations if not properly handled, can create a serious threat to people. Suppression systems must be designed with appropriate safeguards to ensure the safety of all personnel who have reason to occupy a protected area. Suppression systems also employ a variety of actuation methods and speciali zed components to ensure reliable operation and prompt fire suppression.

1-6.1 Safeguards

Carbon dioxide is present in the atmosphere at an average concentration of about 0.03 percent by volume. It is also a normal end product of human and animal metabolism. The concentration of carbon dioxide in the air governs the rate at which carbon dioxide is released from the lungs and thus affects the concentration of carbon dioxide in the blood and tissues. An increasing concentration of carbon dioxide in air can, therefore, become dangerous due to a reduction in the rate of release of carbon dioxide from the lungs and rate of oxygen intake.

General Information

Firefighting concentrations of carbon dioxide are lethal. Appropriate safeguards, as outlined in this chapter, shall be provided to prevent death or

WARNING

injury to personnel in the protected space or adjoining areas where released carbon dioxide could migrate.

The safeguards typically used to prevent personnel exposure to fire-fighting concentrations of CO

fall into five categories:

• Adequate Path of Egress

• Warning Signs and Personnel Education

• Pre-Discharge Time Delays and Alarms

• Stop Valves and Lock-Out V a lves

• Post-Release Warnings and Procedures

Careful study of each particular situation may indicate additional steps that may be required to prevent injury or death to personnel.

1-6.1.1 ADEQUATE PATH OF EGRESS

To promote quick and safe evacuation in the event of a discharge, the path of egress shall include:

• Adequate aisleways and routes of exit, that are kept clear at all times

• Necessary additional or emergency lighting, or both, and directional si gns to ensure quick, safe evacuation

• Only outward swinging, self-closing doors at exits from hazardous areas, and, where such doors are latched, provision of panic hardware

1-6.1.2 WARNING SIGNS AND PERSONNEL EDUCATION

Warning signs shall be posted inside and outside all areas protected by a carbon dioxide system, and also in adjoining areas where the suppression agent could migrate. These warning signs shall instruct the occupants to evacuate the area immediately when the alarms operate,

September 2013 1-3 September 2013

General Information

as well as to warn personnel not to enter the protected space after a CO2 discharge until the area has been safely ventilated. See Paragraph 2-9.2 for specific sign and location information.

All personnel shall be informed that discharge of carbon dioxide gas directly at a person will endanger the person's safety by causing frostbite, eye injury, ear injury, or even falls due to loss of balance upon the impingement of the high-velocity discharging gas. All personnel shall be trained on the dangers associated with an increased carbon dioxide concentration, the proper manual and emergency operation of the system, and the appropriate response to predischarge alarms.

1-6.1.3 PRE-DISCHARGE TIME DELAYS AND ALARMS

Time delay devices are designed to delay the discharge of carbon dioxide for an appropriate period of time to allow an orderly and safe evacuation from the protected area. Time delays also are used to provide a time interval for equipment shutdown and auxiliary interlocks prior to agent discharge.

Pneumatic discharge delays (See Paragraph 2-8.3) shall be provided for:

• All total flooding carbon dioxide systems protecting normally occupied and occupiable enclosures

• Local application systems protecting equipment or processes in normally occupied and occupiable areas, where the discharge will expose personnel to hazardous concentrations of carbon dioxide

An electric time delay may be employed in any circumstance that does not require a pneumatic discharge delay.

For occupiable spaces where a delayed discharge could result in an unacceptable risk to personnel or unacceptable damage to critical equipment, time delays need not be provided.

An evacuation dry run shall be conducted to determine the minimum time needed for a person to evacuate the protected area. Additional time shall be provided to allow for identification of the evacuation signal.

Pre-discharge alarms, whether electrical or pneumatic in nature, are designed to provide a warning and evacuation signal during the time delay period. Audible and visual indication shall be provided when the system is actuated by either automatic or normal manual operation.

Pneumatic pre-discharge alarms (See Paragraph 2-8.4) shall be provided for all applications that also require a pneumatic discharge delay, as listed above. Electric alarms may be employed in addition to pneumatic alarms or as the sole means of notification in applications that do not require a pneumatic discharge delay.

1-6.1.4 STOP VALVES AND LOCKOUT VALVES

A stop valve, when used as a safety device, is employed to ensure that carbon dioxide is not discharged into a normally occupied area without an evacuation signal. The valve is normally closed to prevent the flow of carbon dioxide into the distribution piping. Automatic or manual action is required to open the valve and allow CO

A lockout valve is a m anually operated valv e, installed in the distribution pipe, between the supply and nozzles. The valve is normally open, but shall be locked in a closed position to prevent discharge of agent into the protected space when:

• persons not familiar with the system and its operation are present

• persons are present in locations where discharge of the system will endanger them and where they will be unable to proceed to a safe location within the time delay period

to be discharged.

A lockout valve shall be provided on all systems, except where dimensional constraints prevent personnel from entering the protected space and where discharged carbon dioxide cannot migrate to adjacent areas, creating a hazard to personnel. Lockout valves shall be supervised to provide notification of a lockout.

September 2013 1-4 P/N 81-CO2MAN-001

1-6.1.5 POST-RELEASE WARNINGS AND PROCEDURES

After a release of carbon dioxide, provisions shall be made to prohibit entry of unprotected personnel to spaces made unsafe by a carbon dioxide discharge until the space is ventilated and appropriate tests of the atmosphere have verified that it is safe for unprotected persons to enter. Persons who are not properly trained in the use of and equipped with self-contained breathing apparatus (SCBA) shall not remain in spaces where the CO 4 percent. Such provisions shall include one or more of the following:

• Addition of a distinctive odor to the discharging carbon dioxide, the detection of which serves as an indication to persons that carbon dioxide gas is present. Personnel shall be trained to recognize the odor and evacuate spaces wherein the odor is detected.

• Provision of automatic alarms activated by carbon dioxide detectors or oxygen detectors and located at the entry to and within such spaces. The pre-discharge alarms may be used to serve this purpose if they operate until the space is ventila ted and the safety of the atmosphere has been verified.

• Establishment and enforcement of confined space entry procedures for such areas.

A means for prompt ventilation of affected areas shall be provided. Fo rced ventilation will often be necessary. Care should be taken to properly dissipate hazardous atmospheres and not merely move them to another location. Careful consideration should be given to low-lying areas, as carbon dioxide is heavier than air and will settle in such spaces.

Prompt discovery and rescue of persons rendered unconscious in protected areas can be accomplished by having such areas searched by trained personnel equipped with proper breathing equipment. Those persons rendered unconscious by carbon dioxide may be restored without permanent injury by artificial respiration, if removed quickly from the hazardous atmosphere. Self-contained breathing equipment and personnel trained in its use, and in rescue practices including artificial respiration, should be readily available.

General Information

concentration exceeds

1-6.2 Storage

The Kidde Fire Systems high pressure carbon dioxide system uses seamless steel cylinders to store the carbon dioxide at ambient temperature. Each cylinder is equipped with a discharge valve fitted with a siphon tube to discharge liquid carbon dioxide through the distribution piping.

The number of cylinders required for a given application is determined by the size and nature of the hazard being protected. When multiple cylinders are employed, the cylinders are connected to a common piping system through a manifold.

Cylinders with attached releasing devices are defined as pilot cylinders. The system uses pilot cylinders to initiate the suppression system discharge. Actuation of the pilot cylinders creates sufficient pressure in the manifold to actuate the remaining cylinders in the system (called “slave” cylinders). If the suppression system consists of one or two cylinders, one pilot cylinder is used to initiate the carbon dioxide discharge. When the suppression system has three or more storage cylinders, multip le pilot cylinder s, actuated simultaneously, are used to initiate the carbon dioxide discharge.

If permitted by the authority having jurisdiction, a group of carbon dioxide cylinders can be used to protect one or more areas by means of directional valves. The system designer must use careful judgment in the design of a directional valve system. The multiple areas protected by the suppression system must be sufficiently isolated from each other so that two or more protected areas cannot simultaneously be involved in a fire.

1-6.3 Discharge Characteristics

The Kidde Fire Systems carbon-dioxide suppression system employs siphon tubes fitted to the valves within the cylinders in conjunction with a variety of discharge nozzles for agent distribution into a protected space or onto a piece of equipment. The liquid carbon dioxide is

September 2013 1-5 September 2013

General Information

discharged up through the siphon tube, valve, and distribution piping as a liquid under pressure. The liquid is transformed into gas and the resulting expansion at the discharge nozzle orifice and upon discharge a portion immediately flashes to vapor. The remaining liquid undergoes continuous evaporation and cooling and eventually solidifies as finely divided dry ice (snow) particles. The percentage of carbon dioxide converted to dry ice depends upon the temperature of the stored liqui d. Approximately 25 percent of the liqui d stored at 70°F (21°C) is converted to dry ice upon discharge. The dry ice particles gasify in a short period of time, without passing through its liquid phase (sublimation), and no wetting or residue occurs.

The discharge of liquid carbon dioxide creates a white, cloudy appearance due to the dry ice component. Because of the low discharge temperatures, some water vapor in the surrounding air will condense, creating a temporary period of fog that lasts after the dry ice particles have settled out or sublimed. The dry ice helps to reduce the high temperatures created by a fire. It is important to avoid direct impingement of carbon dioxide onto people and very temperature sensitive equipment.

Carbon dioxide vapor is approximately one and one-half times as dense as air at the same temperature. An actual discharge of carbon dioxide gas is much more dense than the surrounding air. This accounts for carbon dioxide's ability to replace the air above burning surfaces and maintain an inert atmosphere for a period of time following its discharge.

1-6.4 Actuation Methods

Kidde Fire Systems recommends that carbon dioxide fire suppression systems have an automatic actuation, and that the automatic actuation be supplemented by one or more modes of manual actuation.

The quantity and type of detectors required for a particular application are governed by the type of combustible products being protected. For example, flammable liquids burn in a manner characterized by rapid flame progression and intense heat generation. Automatic heat or flame detectors are the most appropriate fire detection methods for this type of hazard. Electrical fires, on the other hand, progress much more slowly to the stages of ignition and flame development, and frequently undergo relatively long periods of thermal degradation and pyrolysis during which large quantities of particulate matter and smoke are generated. Automatic smoke detectors, usually consisting of a cross-zoned system employing both ionization and photoelectric principles, or high sensitivity smoke detection, are two examples of methods typically employed for this application.

It is common practice to supplement automatic actuation by two modes of manual actuation called the "normal manual control" and the "emergency manual control." The normal manual control consists of a manually operated device located in close proximity to the equipment or materials protected by the suppression system. Typically it consists of an electrical switch , or a mechanical manually operated device designed to transmit a signal via a pull cable. The emergency manual control is one or more fully mechanical devices that are located on the control head(s) of the pilot cylinder(s) and other auxiliary components such as time delays and directional (or stop) valves. Kidde Fire Systems control heads are equipped with a leveroperated mechanism that serves as the "emergency manual control."

The "normal manual control" is designed to initiate the full operation of the system by one manual action. It is the responsibility of the system designer to ensure that such action will not result in immediate carbon-dioxide discharge into a normally occupied area. It is the responsibility of the system operator to ensure that the protected area has been evacuated prior to operating the "emergency manual control."

1-7 APPLICATIONS

Carbon dioxide fire suppression systems are used for a wide variety of industrial, commercial, and marine applications.

September 2013 1-6 P/N 81-CO2MAN-001

Industrial applications typically consist of equipment or processes where flammable liquids are involved. Examples of industrial hazards that can be protected by carbon dioxide are dip tanks, mixing tanks, spray booths, ovens and dryers, quench tanks, coating machines, wet benches, commercial fryers, and printing presses.

Carbon dioxide is used in commercial applications to protect equipment or areas that have:

• high capital costs

• high productivity value

• critical mission role essential to business operations

Examples of commercial applications are cable trenches, computer room subfloors, electrical cabinets, data (tape) storage units, and so on.

There are numerous marine applications for carbon dioxide systems; these include dry cargo spaces, machinery spaces, pump rooms, and paint lockers. Refe r to the Marine Carbon Dioxide Design, Installation, Operation and Maintenance Manual, Part No. 81-220610-000, for detailed information.

1-8 EXTINGUISHING PROPERTIES OF CARBON DIOXIDE

Carbon dioxide is highly efficient in suppressing surface fires including flammable liquids and solids. When introduced into the combustion zone, carbon dioxide causes almost immediate flame suppression. It suppresses the fire by reducing the oxygen concentration, the fuel vapor concentration, or both, in the vicinity of the fire to the point where these available concentrations are too low to support combustion. In general, a reduction of the oxygen concentration to 15 percent or less by volume is sufficient to extinguish most diffusion-flame fires in flammable liquids . The cooling effect is also helpful in certain applications, especially where carbon dioxide is applied directly on to the burning material.

General Information

When deep seated fires are encountered, a higher concentration of carbon dioxide and a much longer hold (retention) time are needed to allow any smoldering fires to be suppressed and to allow the material to cool to a temperature at which it will not re-ignite.

1-9 PHYSICAL PROPERTIES OF CARBON DIOXIDE

The physical properties of carbon dioxide are provided in Table 1-1.

September 2013 1-7 September 2013

General Information

Table 1-1. Physical Properties of Carbon Dioxide

Parameter US Units Metric Units

Molecular weight 44 44

Specific gravity, @ 32

C and 101 kPa abs)

(0 Vapor density, @ 32

C and 101 kPa abs)

F and 1 atm 

Liquid density, @ 70oF (21oC) 47.6 lb./ft.3 (@ 70oF) 762 kg/m3 (@ 21oC) Triple point -69.9°F / 75.1 psia -56.6°C / 518 kPa abs Sublimation temperature @ 1 atm (101 kPa abs) -109.3°F @ 1 atm -78.5°C Critical temperature 87.9°F 31.1°C Critical pressure 1071 psia 7382 kPa abs

Latent heat of sublimation, @ -109.3 Latent heat of vaporization, @ 2

F (-78.5oC)

F (-17oC)

1.524 1.524

0.1234 lb./ft.

1.98 kg/m

245.5 BTU/lb. 199.0 kJ/kg

119.0 BTU/lb. 276.8 kJ/kg

1-10 CLEAN-UP

Since carbon dioxide is a gas, it can penetrate and spread to all parts of a fire area. As a gas or as a finely divided solid called 'snow' or 'dry ice', it will not conduct electricity and therefore, can be used on energized electrical equipment. It leaves no residue, thus eliminating cleanup of the agent itself.

For the safety of the personnel, the area should be thoroughly ventilated and purged with fresh air.

September 2013 1-8 P/N 81-CO2MAN-001

Component Descriptions

CHAPTER 2

COMPONENT DESCRIPTIONS

2-1 FIRE SUPPRESSION SYSTEM COMPONENTS

This chapter provides detailed descriptions of the components comprising the Kidde Fire Systems CO

•CO

• Actuation components

•Check valves

• Directional (Stop) valves

•Lockout valves

• Discharge nozzles

• Auxiliary equipment

• Instruction and warning plates

• Hose reel and rack systems

2-2 CO

STORAGE

fire suppression system. The information is arranged in the following categories:

storage

Kidde Fire Systems high pressure carbon-dioxide fire suppression systems use liquid carbon dioxide agent stored under its own vapor pressure in seamless steel cylinders at ambient temperature. Each cylinder is equipped with a valve having a connection for attachment of a discharge head. The discharge heads attach to the distribution piping by means of flexible hoses or a swivel adapter.

Actuation of the suppression system is initiated by one or more control heads which are attached to the control ports on the valve(s) of the pilot cylinder(s). Actuation of the pilot cylinders creates sufficient pressure in the discharge manifold to operate the remaining cylinders in the system.

Single or dual cylinder suppression systems utilize cylinder straps to secure the storage cylinders to walls or other rigid structural members. Specially designed racks are utilized for multiple cylinder systems to secure the cylinders, absorb the discharge reactions, and to facilitate system servicing and maintenance.

Pressurized (charged) cylinders are extremely hazardous and if not handled properly are capable of violent discharge. This could result in bodily injury,

WARNING

2-2.1 Cylinder and Valve Assemblies

death, or property damage. Always handle carbon dioxide cylinders according to the instructions in this manual.

Carbon dioxide agent is stored in steel cylinders as a liquid under its own vapor pressure and at ambient temperature. Each cylinder is equipped with a forged brass valve assembly which contains a safety disc device (Table 2-1) for protection against over pressurization due to elevated temperatures. Each valve is equipped with a side port that serves both as a fill connection and as a control port for attachment of system actuators. The control port is designed to accept all of the control heads listed in this manual.

The threaded connection on the top of each valve mates with a discharge head to allow agent release and distribute the CO

P/N 81-CO2MAN-001 2-1 September 2013

from the cylinder into the discharge piping.

Component Descriptions

THREAD FOR PROTECTION CAP

PAR T

NUMBER

CYLINDER CO

CAPACITY

lbs.

VALV E

SIZE

SAFETY

DISC

SIPHON

TUBE

DIM. "A"

(HEIGHT)

in.

81-982548-000

81-982547-000

50 22.6 1/2 in. WHITE BENT

55.25

1396

15.835 1/2 in. WHITE BENT

39.25

997

DIM. "B"

(DIAMETER)

VOLUME

CYLINDER

WEIGHT

lbs.

NOMINAL CHGD.

8.50 215 2300 0377 155 70.3

2158.50 1510 0247 51.7114

81-870486-000

11.325 1/2 in. WHITE BENT

29.63

750

2158.50 1040 0170 38.184

RATING

DOT

3AA-2015

CYLINDER

CONTROL PORT

TYPE “I” CYLINDER VALV E

THREAD FOR DISCHARGE HEAD

SAFETY DISC ASSEMBLY

NAMEPLATE

THIS LINE UP IF

CYLINDER NOT VERTICAL

BENT SIPHON

TUBE

MATERIALS CYLINDER: STEEL VALVE BODY: BRASS VALVE SEAT: BRASS SLEEVE: BRASS SLEEVE RETAINER: BRASS MAIN CHECK: BRASS WITH RUBBER SEAT PILOT CHECK: STAINLESS STEEL WITH RUBBER SEAT SIPHON TUBE: ALUMINUM

in.

Five cylinder and valve assemblies are available, ranging in capacity from 25 lb. to 100 lb. of carbon dioxide. The 25, 35, and 50 lb. cylinders (Figure 2-1) are equipped with a 1/2-inch discharge valve, Part. No. WK-981372-000 (Figure 2-3); the 75 and 100 lb. cylinders (Figure 2-2) have a 5/8-inch discharge valve, Part No. WK-840253-000 (Figure 2-4).

The cylinders are factory-equipped with a protection cap threaded securely over the valve assembly. This device is a safety feature and provides protection during shipment and handling. This cap must be installed at all times, except

WARNING

when the cylinders are connected into the system piping or being filled. Do not move or handle a carbon dioxide cylinder unless the protection cap is installed.

Figure 2-1. 25 through 50 lb. Carbon Dioxide Cylinders, Bent Siphon Tube

Note: Horizontal or Vertical Installation

September 2013 2-2 P/N 81-CO2MAN-001

Component Descriptions

MAIN CHECK BRASS WITH RUBBER SEAT PILOT CHECK STAINLESS STEEL WITH RUBBER SEAT SIPHON TUBE: ALUMINUM

CYLINDER: STEEL

MATERIALS:

SIPHON TUBE

PROTECTION CAP

CYLINDER

PORT

CONTROL

VALV E

ASSEMBLY

DISCHARGE HEAD

THREAD FOR

SAFETY DISC

THREAD FOR

TYPE "I" CYLINDER

MATERIALS: VALVE BODY VALVE SEAT SLEEVE SLEEVE RETAINER

BRASS

}

PAR T

NUMBER

CYLINDER CO

CAPACITY

lbs.

VALV E

SIZE

SAFETY

DISC

SIPHON

TUBE

DIM. "A"

(HEIGHT)

in.

81-870269-000

81-870287-000

100 45.3 5/8 in. RED

STRAIGHT 62 1570

34.075 5/8 in. RED

STRAIGHT 60 1520

DIM. "B"

(DIAMETER)

in.

VOLUME

in.

CYLINDER

WEIGHT

lbs.

NOMINAL CHGD.

10.55 267 4070 0.0667 288 130.6

2339.22 3055 0.0501

92.9

205

DOT

RATING

3AA - 2300

Figure 2-2. 75 and 100 lb. Carbon Dioxide Cylinder, Straight Siphon Tube

P/N 81-CO2MAN-001 2-3 September 2013

Component Descriptions

1 in. NPT

2-1/2 in. -14 NS-3 (FOR DISCHARGE HEAD CONNECTION)

VALVE SEAT

MAIN CHECK

SPRING

DISC RETAINER

SAFETY DISC

WASHER

TYPICAL CYLINDER

SIPHON TUBE THREADED IN PLACE 3/8 in. NPS

TYPICAL

SIPHON TUBE

MATERIALS VALVE BODY: BRASS VALVE SEAT: BRASS SLEEVE: BRASS SLEEVE RETAINER: BRASS MAIN CHECK: BRASS WITH RUBBER SEAT PILOT CHECK: STAINLESS STEEL WITH RUBBER SEAT

SLEEVE

1-1/4 in. -18 NS-3

(FOR CONTROL

HEAD CONNECTION)

PILOT CHECK

SLEEVE

RETAINER

VALVE BODY

4.98 in.

(127 mm)

2-2.1.1 VALVES

Figure 2-3. I/2-inch Type “I” Cylinder Valve

Table 2-1. Safety Disc Information

Description Part Number Cylinder Size Identification Burst Pressure

Safety Disc and Washer 81-902048-000 25, 35, and 50 lb. White Safety Disc and Washer 81-903684-000 75 and 100 lb. Red

September 2013 2-4 P/N 81-CO2MAN-001

2650 to 3000 psi @ 160 3150 to 3500 psi @ 160

°F °F

Component Descriptions

5.44 in.

(138 mm)

1 in. NPT

2-1/2 in. -14 NS-3 (FOR DISCHARGE HEAD CONNECTION)

VALVE SEAT

MAIN CHECK

SPRING

DISC RETAINER

SAFETY DISC

WASHER

TYPICAL CYLINDER

SIPHON TUBE STAKED IN PLACE

TYPICAL

SIPHON TUBE

SLEEVE

1-1/4 in. -18 NS-3

(FOR CONTROL

HEAD CONNECTION)

PILOT CHECK

SLEEVE

RETAINER

VALVE BODY

2-2.1.2 CYLINDER FILLING

The relationship of cylinder pressure as a function of temperature and fill density is shown in Figure 2-5. In high pressure CO ambient temperature at the storage location. The pressure is also affected by the fill density or percent fill. This is the ratio (expressed in percent), of the weight of carbon dioxide to the water capacity of the cylinder, expressed in pounds as shown in Table 2-2. The fill density commonly used is between 60 and 68 percent. The US Department of Transportation (DOT) and Transport Canada (TC) limits the maximum fill density to 68% for carbon dioxide.

Care must be taken not to over fill the cylinders above their rated capacity. Over filling is an unsafe practice, is in violation of DOT/TC regulations, and will create rapid increases in pressure for small increases in temperature. Over filling will cause premature actuation of the pressure relief device and result in the loss of the cylinder contents.

Figure 2-4. 5/8-inch Type “I” Cylinder Valve

systems the cylinder pressure is directly related to the

P/N 81-CO2MAN-001 2-5 September 2013

Component Descriptions

180

170

160

150

140

130

120

110

100

88 80

-10

-20

-30

-40

200

400

600

800

1000

1200

1400

1600

1800

2000

2200

2400

2600

68%

PERCENT OF WATER CAPACITY

PRESSURE, PSIA

TEMPERATURE, F

2800

3000

3200

3400

3600

3800

64%60%

Rated CO capacity of cylinders (in lbs)

capacity of cylinders (in lbs) at 60 F

% of H O capacity =

x 100

Critical temperature of CO = 88 F

Rated CO2 Capacity of Cylinder (lb) H20 Capacity (%)

Figure 2-5. Pressure vs. Temperature for CO2 Cylinders

and H20 Capacity Correlation

Table 2-2. CO

25 67 35 64 50 60

75, 100 68

September 2013 2-6 P/N 81-CO2MAN-001

2-2.2 Discharge Heads

3-15/16 in. (100 mm)

STOP

CHECK

SET

POSITION

OPERATED

POSITION

SWIVEL NUT

(FOR CONNECTION

TO CYLINDER VALVE)

STEM

INNER O-RING P/N WF-242467-000

OUTER O-RING P/N WF-242466-000

2-1/2 - 14N3

3/4 in. NPS

DISCHARGE OUTLET

SPRING

BALL CHECK

BALL RETAINER

PISTON

3-13/16 in.

(97 mm)

Each cylinder and valve assembly must be equipped with a discharge head at installation to actuate the cylinder valve. The discharge head is assembled to the top of the cylinder valve and contains a spring-loaded piston which when actuated by carbon dioxide pressure is designed to depress the main check in the valve and discharge the contents of the cylinder. The piston provides the necessary mechanical advantage to open the valve's main check. The discharge outlet is designed to mate with a flexible hose or swivel adapter for connection to the distribution piping. The discharge head also contains an integral stop check whose function is to automatically prevent the loss of carbon dioxide during system discharge i n the event that a cylinder is removed from the distribution piping. Two different style discharge heads are available:

• Plain-nut discharge head

• Grooved-nut discharge head

2-2.2.1 PLAIN-NUT DISCHARGE HEAD

The plain-nut discharge head, Part No. WK-872450-000 (Figure 2-6), discharges the contents of the cylinder upon activation of its associated control head or upon application of pressure entering through the outlet. The plain-nut discharge head is used on each cylinder (Figure 2-7) of a multiple-cylinder syst em .

Component Descriptions

Figure 2-6. Discharge Head, Plain Nut

P/N 81-CO2MAN-001 2-7 September 2013

Component Descriptions

BALL CHECK

PILOT PRESSURE PATH

IN DISCHARGE HEAD

STEM

OUTER O-RING

PILOT PRESSURE PATH

IN VALVE

PILOT PORT

PILOT CHECK

TYPICAL SIPHON TUBE

PISTON

PLAIN NUT DISCHARGE HEAD

BALL CHECK

PILOT PRESSURE PATH FOR SLAVE OPERATION

STOP CHECK

DISCHARGE OUTLET PILOT PRESSURE HERE WILL DISCHARGE THIS CYLINDER

INNER O-RING

NO GROOVES IN SWIVEL NUT

MAIN CHECK

SAFETY OUTLET

TYPE “I” CYLINDER VALVE (SEE K-1050)

TYPICAL CYLINDER

NEVER CONNECT DISCHARGE HEAD TO CYLINDER VALVE WITHOUT FLEX LOOP ATTACHED TO DISCHARGE OUTLET AND CONNECTED TO SYSTEM PIPING. ARRANGEMENT AS SHOWN IS FOR ILLUSTRATION PURPOSES ONLY.

CAUTION

2-2.2.2 GROOVED-NUT DISCHARGE HEAD

Figure 2-7. Installation of Plain Nut Discharge Head to Cylinder Valve

The grooved-nut discharge head, Part No. 81-872442-000 (Figure 2-8), can only be actuated by a control head. Pressure entering the outlet will not actuate the cylinder. Grooved-nut discharge heads are only used for single-cylinder, or connected single cylinder main and reserve systems (Figure 2-9).

September 2013 2-8 P/N 81-CO2MAN-001

Component Descriptions

2-5/8 in. (66 mm)

SPRING

3/4 in. NPS

DISCHARGE OUTLET

2 1/2 - 14N3

OUTER O-RING P/N WF-242466-000

INNER O-RING P/N WF-242467-000

STEM

SET

POSITION

PISTON

IDENTIFYING GROOVES IN SWIVEL NUT

SWIVEL NUT

(FOR CONNECTION

TO CYLINDER VALVE)

OPERATED POSITION

3-15/16 in. (100 mm)

WARNING

Figure 2-8. Discharge Head, Grooved Nut

The discharge head must be permanently connected into the system piping. Never attach the discharge heads to the cylinder valves until the cylinders are secured in brackets or racking. Under no circumstances is the discharge head to remain attached to the cylinder valve after removal from service, during shipment, handling, storage, or during filling. Failure to follow these instructions could result in serious bodily injury, death, or property damage.

P/N 81-CO2MAN-001 2-9 September 2013

Component Descriptions

PILOT PRESSURE PATH

IN DISCHARGE HEAD

STEM

OUTER O-RING

PILOT PRESSURE PATH

IN VALVE

PILOT PORT

PILOT CHECK

TYPICAL SIPHON TUBE

PISTON

GROOVED NUT DISCHARGE HEAD

STOP CHECK

DISCHARGE OUTLET PILOT PRESSURE HERE WILL DISCHARGE THIS CYLINDER.

NOT

INNER O-RING

IDENTIFYING GROOVES IN SWIVEL NUT

MAIN CHECK

SAFETY OUTLET

TYPE “I” CYLINDER VALVE (SEE K-1050)

TYPICAL CYLINDER

NEVER CONNECT DISCHARGE HEAD TO CYLINDER VALVE WITHOUT FLEX LOOP ATTACHED TO DISCHARGE OUTLET AND CONNECTED TO SYSTEM PIPING. ARRANGEMENT AS SHOWN IS FOR ILLUSTRATION PURPOSES ONLY.

CAUTION

Figure 2-9. Installation of Grooved Nut Discharge Head to Cylinder Valve

September 2013 2-10 P/N 81-CO2MAN-001

2-2.3 Flexible Hoses

14-1/2 in. (368 mm)

SWAGGED OR CRIMPED

1/2 in. NPT

MALE COUPLING

HOSE

FEMALE SWIVEL COUPLING

3/4 in. NPS

16-3/8 in. (417 mm)

SWAGGED OR CRIMPED

3/4 in. NPT

MALE COUPLING

HOSE

FEMALE SWIVEL COUPLING

3/4 in. NPS

Flexible discharge hoses are used to provide the interconnection between the discharge head and the distribution manifold or piping. The hoses are made of wire-reinforced rubber.

The 1/2-inch flex hose, Part No. 81-252184-000 (Figure 2-10), is used with the 25, 35, and  50 lb. cylinders.

The 3/4-inch flex hose, Part No. WK-251821-000 (Figure 2-11), is used with the 75 and  100 lb. cylinders.

Flexible hoses must always be connected to the system piping and to the discharge heads before attaching the discharge heads to the cylinder valves, in

WARNING

order to prevent injury in the event of inadvertent carbon dioxide discharge.

Component Descriptions

Figure 2-10. 1/2-inch Flex Hose

P/N 81-CO2MAN-001 2-11 September 2013

Figure 2-11. 3/4-inch Flex Hose

Component Descriptions

SWIVEL NUT

1/2 in. NPT

PIPE UNION

2-9/16 in. (66 mm) APPROX.

MATERIAL: BRASS

207877

3/4 in. NPT FEMALE

2-2.4 Swivel Adapter

A swivel adapter, Part No. WK-934208-000 (Figure 2-12), can be substituted for a flexible hose in a single-cylinder suppression system. It is used to connect the discharge head to the distribution piping.

The swivel adapter must always be connected to the system piping and to the discharge head before attaching the discharge head to the cylinder valve in

WARNING

order to prevent injury in the event of inadvertent carbon dioxide discharge.

2-2.5 Manifold “Y” Fitting

The manifold “Y” fitting, Part No. 81-207877-000 (Figure 2-13), is used in place of a pipe manifold to connect a two (2) cylinder system or for connecting a single cylinder main and reserve system.

Figure 2-12. Swivel Adapter

September 2013 2-12 P/N 81-CO2MAN-001

Figure 2-13. Manifold “Y” Fitting

2-2.6 Cylinder Mounting Hardware

Straps are available for securing single or double cylinders against a wall or other supporting structure. Free standing arrangements are not available. If walls are not available, a simple free standing support can be built up from the floor.

Specially designed racks are available to secure multiple cylinders in various arrangements. The racks consist of metal framework with cradles, clamps and spacers to support the cylinders, and also includes cylinder weighing bars to facilitate service and maintenance.

2-2.6.1 SINGLE OR DOUBLE CYLINDER ARRANGEMENTS

2-2.6.1.1 Single Cylinder Straps.

The dimensions for single cylinder straps (Figure 2-14) are provided in Table 2-3.

Component Descriptions

Figure 2-14. Single Cylinder Straps

Table 2-3. Single Cylinder Strap Dimensions

Part Number

WK-270014-000 25, 35, & 50 7.94 202 11.5 292 10.4 264 1.00 25.4 3.50 88.9 4.25 108

81-626690-000 75 5.63 143 12.3 312 11.1 282 1.25 31.8 3.75 95.2 4.63 118

WK-270157-000 100 10.0 254 14.0 356 12.4 315 1.75 44.4 4.50 114 5.31 135

Cylinder

Size

ABCDER

in. mm in. mm in. mm in. mm in. mm in. mm

P/N 81-CO2MAN-001 2-13 September 2013

Component Descriptions

2-2.6.1.2 Double Cylinder Straps

The dimensions for double cylinder straps (Figure 2-15) are provided in Table 2-4.

Figure 2-15. Double Cylinder Straps

Table 2-4. Double Cylinder Strap Dimensions

Part Number

WK-241219-000 50 & 75 7.75 197 22.8 579 21.5 546 1.75 44.4 2.88 73.1 4.63 118 WK-241254-000 100 10.3 262 25.6 650 24.3 617 1.75 44.4 4.72 120 5.28 134

Cylinder

Size

ABCDER

in. mm in. mm in. mm in. mm in. mm in. mm

September 2013 2-14 P/N 81-CO2MAN-001

2-2.6.2 MULTIPLE CYLINDER ARRANGEMENTS

SERVICING

AISLE

50, 75 or 100 lb.

SERVICING

AISLE

SERVICING

AISLE

50, 75 or 100 lb.

OMIT CYLINDER

HERE FOR ODD

NUMBER

Three different styles of framing arrangements are available to provide flexibility of installation for installation of three or more cylinders:

Arrangement A: This style (Figure 2-16) is used for a single row of cylinders, that can be either wall mounted or free standing.

Figure 2-16. Multiple Cylinder Mounting, Arrangement A

Component Descriptions

Arrangement B: This style (Figure 2-17) provides for one row of cylinders on each side of the

framing. This arrangement is free standing and requires two aisles. It has the advantage of permitting free access to any cylinder without disturbing any other cylinder.

Figure 2-17. Multiple Cylinder Mounting, Arrangement B

P/N 81-CO2MAN-001 2-15 September 2013

Component Descriptions

SERVICING

AISLE

50, 75 or 100 lb.

OMIT CYLINDER

HERE FOR ODD

NUMBER

Arrangement C: This style (Figure 2-18) provides for a double row of cylinders on the same side of the framing. This arrangement can be free standing or wall mounted. It is generally used when the cylinders are to be wall mounted and sufficient space is not available to arrange them in a single row.

Figure 2-18. Multiple Cylinder Mounting, Arrangement C

Larger quantities of cylinders can be accommodated by adding additional framing. All framing is supplied with pre-drilled mounting holes. Any combination of cylinder stowage, junction box installation, pneumatic selector valve installation and cylinder manifold support can be accommodated by the holes in the framing. All bolts and nuts are supplied as part of the framing. Drilling is not required at the job site in order to erect the bracketing. In addition the cylinder manifolds are arranged to be fastened to the framing.

2-2.6.2.1 Cylinder Rack and Framing, Example Arrangement

The components comprising a single-row rack and frame (Arrangement A) for six cylinders (Framing Kit 81-010001-006) are identified in the highlighted column of Table 2-5 and illustrated in Figure 2-19. Complete parts information concerning the components required for all single- and double-row rack and framing arrangements are contained in Table 8-19, Table 8-20 and Table 8-21 and illustrated in Figure 4-4 through Figure 4-20

September 2013 2-16 P/N 81-CO2MAN-001

Component Descriptions

Table 2-5. Framing Kits - One Row, 3 through 15 Cylinders

Number of Cylinders 3 4 5 6789101112131415

Kit Number 81-010001-XXX

Part No. Description Quantity Supplied in Kit

WK-271566-000 Post 2 2 2 WK-241211-000 Gusset 2 2 2 WK-207281-000 Channel Support 2 2 2 WK-271563-000 3 Cylinder

Channel

WK-271564-000 4 Cylinder

Channel

WK-271565-000 5 Cylinder

Channel WK-271561-000 CRADLE 3 4 5 WK-271567-000 1 Row Weigh Bar

Bracket

WK-243796-000 3 Cylinder Weigh

Bar

WK-243797-000 4 Cylinder Weigh

Bar

003-004-005

1——

—1—

——1

222

1——

—1—

006-007-008-009-010-011-012-013-014-015

3333344444 2222222222 5555588888 2 1 ——— 1 ————

—121—2321—

———1 2 —— 1 2 3

6789101112131415 3333344444

2 1 ——— 1 ————

—121—2321—

WK-243798-000 5 Cylinder Weigh

Bar WK-241105-000 Front Clamp 2 2 3 WK-243795-000 Rack Rod 1 Row 2 2 3

ADDITIONAL PARTS TO ORDER FOR MAIN & RESERVE - NOT INCLUDED IN KITS WK-241105-000 Front Clamp — 2 — WK-243795-000 Rack Rod 1 Row — 2 —

— 3/8-inch -16 x 1-

inch Long Bolt

— 3/8-inch -16 Nut 16 16 16

Main 1/2-inch -13 x 1-

inch Long Bolt

M & R 1/2-inch -13 x 1-

inch Long Bolt

Main 1/2-inch-13 Nut 8 9 12

M & R 1/2-inch-13 Nut — 9 —

— 1/2-inch Washer222

——1

HARDWARE - NOT SUPPLIED BY KIDDE FIRE SYSTEMS

16 16 16

233

—3—

———1 2 —— 1 2 3

3445566778 3445566778

4—4—6—6—8— 4—4—6—6—8—

26 26 26 26 26 36 36 36 36 36

4455667788

3—5—5—7—7—

13 16 17 20 21 24 25 28 29 32 15—17—23—25—31—

2222222222

Note: No hardware listed for fastening framing to floor or wall.

P/N 81-CO2MAN-001 2-17 September 2013

Component Descriptions

6 - CYLINDERS

MODEL 4706

KIDDE

CYLS

LENGTH

CYL CHANNEL

P/N

WEIGH BAR

P/N

(2) WK-243796-000

(2) WK-271563-000

6 ft. 1-3/4 in.

(1873 mm)

TABLE

SECURE MANIFOLD WITH PIPE CLAMP

ALLOW 2 ft. (610 mm) AISLE IN FRONT OF CYLINDERS FOR SERVICING

SLOT FOR PIPE CLAMP

WEIGHING BAR (SEE TABLE) FASTEN WITH 3/8 in. X 1 in. LONG BOLT AND NUT

WEIGHING BAR BRACKET (3) WK-271567-000 - FASTEN WITH 3/8 in. X 1 in. LONG BOLT AND NUT

POST CHANNEL (3) - WK-271566-000

CYLINDER CHANNEL (SEE TABLE)

GUSSET (2) - WK-241211-000 FASTEN TO FLOOR

CHANNEL SUPPORT (4) - WK-207281-000 - FASTEN WITH (3) 3/8 in. X 1 in. LONG BOLT AND NUT

NOTE: THIS FRAMEWORK TO BE PLACED AGAINST A WALL,

BUT CAN ALSO BE INSTALLED FREE STANDING

6 ft. 4 in.

(1930 mm)

HOLES FOR KNOCKOUT

JUNCTION BOX

THESE HOLES FOR

PNEUMATIC SYSTEM ONLY.

HOLES FOR PNEUMATIC

SELECTION VALVE.

13-5/16 in.

(338 mm)

Figure 2-19. Cylinder Rack and Framing, Example Arrangement

September 2013 2-18 P/N 81-CO2MAN-001

2-3 ACTUATION COMPONENTS

Actuation of the suppression system is initiated by use of control head(s). Control heads are components that attach to the control ports of the carbon dioxide cylinder valves. The control head initiates the suppression system discharge by opening the cylinder valve's pilot check. This allows carbon dioxide to pressurize the discharge head p iston, which opens the main check in the valve and discharges the contents of the cylinder.

Component Descriptions

One control head is used for CO control heads are required for suppression systems that have three or more carbon dioxide cylinders.

Control heads are also used in conjunction with pressure operated time delays, stop valves, and pneumatic transmitters to control the flow of carbon dioxide throughout the piping network. All of the control heads are self-venting in the set position to prevent accidental discharge in the event of a slow build-up of pressure in a pilot line or a slow leak at the pilot check of the cylinder valve.

Control heads must be in the set position before attaching to the cylinder valves

WARNING

to prevent accidental carbon dioxide discharge.

2-3.1 Lever-Operated Control Head

The lever-operated control head, Part No. WK-870652-000 (Figure 2-20), is used for small, manually-actuated suppression systems using one or two carbon dioxide cylinders. It is also used as an emergency manual release device for pressure operated control heads and used in conjunction with components such as pressure operated time delays and directional (stop) valves.

This control head is equipped with an operating lever secured in the closed position by a safety pull pin and seal wire. The lever can be rotated to the open position by removing the safety pin. This will discharge a cylinder, bypass a time-delay period, or open a directional (stop) valve.

systems having one or two cylinders. A minimum of two

P/N 81-CO2MAN-001 2-19 September 2013

Component Descriptions

BODY

SWIVEL NUT 1-1/2 in. (81 mm)

SET

OPERATED

STEM

CLOSED

SEAL WIRE

LEVER

1-1/4 in. - 18 NF-3 FEMALE

TO OPEN

ALLOW APPROXIMATELY 2 in. (50 mm) CLEARANCE FOR OPERATION OF LEVER

3-3/16 in. (81 mm)

LOCKING PIN

3 in.

(76 mm)

Figure 2-20. Lever-Operated Control Head

2-3.2 Cable-Operated Control Head

The cable-operated control head, Part No. 81-979469-000 (Figure 2-21 and Figure 2-22), is a mechanical device that allows for remo te manual actuation of carbon di oxide cylinders, stop valves, and directional valves b y means of signals transmitted via pull boxes and cables. A manual lever is also provided on the control head for local operation.

A tension force transmitted by a cable will cause the control head's cable clamp and wheel assembly to travel linearly and depress the actuating pin to open the pilot check on a cylinder valve or directional (stop) valve.

September 2013 2-20 P/N 81-CO2MAN-001

Component Descriptions

LOCAL MANUAL RELEASE LEVER

SEAL WIRE

LOCKING PIN

DIRECTION OF PULL

THREADED NUT 3/8 in. NPS FOR PIPE

1/16 in. CABLE

CONDUIT

SWIVEL NUT 1-1/2 in. (38 mm)

1-1/4 in. - 18 NF-3 FEMALE

CABLE CLAMP AND WHEEL ASSEMBLY

5-1/4 in.

(133 mm)

4-1/4 in.

(108 mm)

CLOSURE DISC

CABLE CLAMP AND WHEEL ASSEMBLY

CABLE HOUSING

3/8 in. PIPE OR

ADAPTER P/N 843837

1/16 in. CABLE

CYLINDER CENTERS

FLARE ON CABLE HOUSING FITS INTO SLOT IN CONTROL HEAD (CLOSURE DISC REMOVED)

Figure 2-21. Cable-Operated Control Head

Figure 2-22. Cable-Operated Control Heads in Tandem

2-3.3 Manual Control Equipm ent

All carbon dioxide fire suppression systems are equipped with one or more manually-operated release stations. These stations are located in easily accessible positions around the protected area or equipment, and activation of any station should permit full operation of the system.

P/N 81-CO2MAN-001 2-21 September 2013

Component Descriptions

FOR FIRE

BREAK GLASS PULL HANDLE

PULL HARD

OPTIONAL

NAMEPLATE

(BY INSTALLER)

2-NAMEPLATE BRACKETS (SUPPLIED WITH PULL BOX)

3/8 in. PIPE

1/16 in. CABLE

2-1/4 in.

(57 mm)

5 in.

(127 mm)

4-COVER SCREWS

PULL HANDLE

HAMMER P/N 928103

BREAK GLASS

P/N WK-928103-000

5-7/8 in. (149 mm)

1/16 in. CABLE

CORNER PULLEY

CONDUIT NIPPLE

Z-BRACKET

P/N 81-605320-000

(3) HOLES FOR 1/4 in.

MOUNTING BOLTS HERE

3-9/16 in.

(90 mm)

4-1/2 in.

(114 mm)

2-3.3.1 MECHANICAL PULL BOX

The mechanical pull box, Part No. 81-871403-000 (Figure 2-23), is a cable connected, pullhandle-type remote release station used for actuating carbon dioxide cylinders and associated directional (stop) valves. The pull box is designed to transmit a force via a 1/16-inch cable to the cable operated control heads attached to the pilot CO control valves. A hammer is attached to the pull box, and operation is accomplished by breaking the glass front with the hammer and pulling the handle.

cylinders and the appropriate flow-

Figure 2-23. Mechanical Pull Box

2-3.3.2 MECHANICAL PULL BOX Z-BRACKET

The mechanical pull box Z-bracket, Part No. 81-605320-000 (Figure 2-24) is used to attach the mechanical pull box to a wall or a rigid structural member. This bracket provides sufficient offset of the pull box from its mounting surface to allow penetration from behind by the cabling system.

Figure 2-24. Mechanical Pull Box Bracket

September 2013 2-22 P/N 81-CO2MAN-001

2-3.3.3 CORNER PULLEYS

(2) 1/2 in. EMT CONNECTIONS COMPRESSION TYPE

5/8 in.

(16 mm)

2-3/4 in. (70 mm)

APPROX

13/16 in. (21 mm)

5/8 in.

(16 mm)

BODY

GASKET

COVER

3/8 in. - 18 NPS FEMALE

1-3/4 in. (45 mm)

COVER SCREW

2-1/8 in. (54 MM) DIA

WATERTIGHT CORNER PULLEY, P/N 81-803808-000

COVER SCREW

1/2 in. EMT CORNER PULLEY, P/N WK-844648-000

Corner pulleys (Figure 2-25) are used at every change in direction of cable lines and prevent binding to ensure smooth operation. Part No. 81-803808-000 is used for all watertight applications; Part No. WK-844648-000 is used for all industrial applications.

Component Descriptions

2-3.3.4 TEE PULLEY

The tee pulley, Part No. 83-843791-000 (Figure 2-26), is used to branch a pull cable line to multiple remote release stations. The tee pulley is used for cables that are run in 1/2-inch EMT.

Figure 2-25. Corner Pulleys

P/N 81-CO2MAN-001 2-23 September 2013

Component Descriptions

Kidde

1/16 in. CABLE

PULLEYS

CABLE CLAMP - SUPPLIED WITH TEE PULLEY

SINGLE 1/16 in. CABLE

1/2 in. EMT

4-5/16 in. (110 mm)

4-1/2 in.

(114 mm)

(3) 1/2 in. EMT CONNECTIONS

COMPRESSION TYPE

COVER HELD ON BY (4) NO. 10 SCREWS THRU HOLES SHOWN

1/2 in. EMT CONNECTION COMPRESSION TYPE

3/8 in. NPS MALE

1-1/2 in. (39 mm)

2-3.3.5 ADAPTER

The adapter, Part No. WK-843837-000 (Figure 2-27), is used to connect 1/2-inch EMT to components with 3/8-inch NPS outlets such as the cable operated control head and the dual pull equalizer. This adapter has a 1/2-inch female EMT connector on one end and a 3/8-inch NPS male connector on the other end.

Figure 2-26. Tee Pulley

2-3.3.6 CABLE HOUSING

Figure 2-27. EMT Adapter

A cable housing (Figure 2-28) is required when the suppression system consists of three or more cylinders and utilizes two cable-operated control heads. The cable housing protects the interconnecting cable between the two cable-operated control heads and secures the two heads in a fixed position. The length of the cable housing (see Table 2-6) is determined by the size of the cylinders used in the suppression system.

September 2013 2-24 P/N 81-CO2MAN-001

Component Descriptions

FLARED

3/8 in. NPS MALE

1/16 in. CABLE

CABLE CLAMP WITH SET SCREW

12 in.

(305 mm)

10 in.

(254 mm)

(4) MOUNTING HOLES

1/16 in. CABLE

2-1/4 in. (57 mm)

2 in.

(51 mm)

2-5/8 in.

(67 mm)

3-1/4 in. (83 mm)

(2) 3/8 in. NPT

FEMALE OUTLETS

HOUSING

USE 3/32 in. HEX KEY FOR CABLE PULLEY SET SCREWS

(3) 3/8 in. NPT FEMALE OUTLETS 2 BRASS PLUGS SUPPLIED WITH DUAL PULL EQUALIZER

3/8 in. PIPE

DIRECTION OF PULL

HOUSING COVER

Figure 2-28. Cable Housing

Table 2-6. Cable Housing Part Numbers

Cylinders Used With Cylinder Centers “A” Dimension

Part Number

lb. kg in. mm in. mm

WK-331570-000 25-35 11.3 - 15.8 9.5 241 5.12 130 WK-202355-000 50 - 75 22.6 - 34.0 10.0 254 5.62 143 WK-200822-000 100 45.3 11.625 295 7.12 181

2-3.3.7 DUAL PULL MECHANISM

The dual pull mechanism, Part No. 81-840058-000 (Figure 2-29), performs a similar function as the tee pulley. It is used to branch a pull cable line to two remote release stations, and is used for cables that are run in 3/8-inch pipe.

P/N 81-CO2MAN-001 2-25 September 2013

Figure 2-29. Dual Pull Mechanism

Component Descriptions

1/16 in. CABLE

CABLE PULLEY WITH SET SCREW

12 in.

(305 mm)

10 in.

(254 mm)

(4) MOUNTING HOLES

1/16 in. CABLE

2-1/4 in.

(57 mm)

2 in.

(51 mm)

2-5/8 in.

(67 mm)

3-1/4 in.

(83 mm)

(2) 3/8 in. NPT

FEMALE OUTLETS

HOUSING

USE 3/32 in. HEX KEY FOR CABLE PULLEY SET SCREWS

(3) 3/8 in. NPT FEMALE OUTLETS 2 BRASS PLUGS SUPPLIED WITH DUAL PULL EQUALIZER

3/8 in. PIPE

DIRECTION OF PULL

HOUSING COVER

2-3.3.8 DUAL PULL EQUALIZER

The dual pull equalizer, Part No. 81-840051-000 (Figure 2-30), is used to equalize the force transmitted via a pull cable to two separate remote control head locations. It contains a pulley mechanism to equalize the cable travel to assure that the control heads fully actuate at both locations.

Figure 2-30. Dual Pull Equalizer

2-3.3.9 1/16-INCH PULL CABLE

The 1/16-inch Pull Cable functions as a control cable used to interconnect mechanically

September 2013 2-26 P/N 81-CO2MAN-001

actuated components. The cable is made of 1/16-inch O.D., stainless-steel having a multistrand construction and is available in the lengths identified in Table 2-7.

Length (feet) Part Number

50 06-118316-050

Table 2-7. 1/16-inch Pull Cable Lengths

100 06-118316-100 250 06-118316-150 350 06-118316-350 500 WK-219649-000

2-3.4 Electric Control Heads

ELECTRIC

CONTROL HEAD

VOLTS

AMPS

PARTNO.

SET RELEASED

MADE IN U. S. A.

TO RESET

USE SCREWDRIVER

KIDDE-FENWAL,INC. 400MAIN STREET ASHLAND,MA 01721

SEAL WIRE

INDICATOR AND

RESET STEM

6-3/16 in.

(157 mm)

CONNECTION FOR FLEXIBLE ELECTRICAL CONDUIT 3/4 in. NPT FEMALE

LOCKING PIN

LOCAL MANUAL RELEASE LEVER

SWIVEL NUT 1-1/2 in. (38 mm) HEX 1-1/4 in. - 18 NF-3 THREAD

4 in.

(102 mm)

2-3.4.1 ELECTRIC CONTROL HEADS

The electric control heads (Figure 2-31 and Figure 2-32) provide for electric and local manual actuation of the CO

cylinder valve, or directional (stop) valves. The control head is operated

electrically by a suppression control panel and is equipped with a lever for local manual operation.

The electric control head contains a microswitch whose contacts are used to break the electrical circuit to the solenoid when the head is actuated. This reduces the overall power consumption of the fire suppression system. The actuating pin latches in the released position and must be mechanically reset.

A suitable suppression control panel, specifically listed and/or approved for use with the following control heads, shall be provided for supervision of the releasing circuits per NFPA requirements. In addition, a 24 hour back-up power source shall be provided per NFPA requirements. Electrical data is contained in Table 2-8.

Component Descriptions

Figure 2-31. Electric Control Head

P/N 81-CO2MAN-001 2-27 September 2013

Component Descriptions

3/4 in. NPT TO FLEXIBLE

CONDUIT ADAPTER

PLUS OR HOT CONNECTION

(TERMINAL #3)

TERMINAL STRIP

MICROSWITCH

MICROSWITCH LEVER

INDICATOR AND

RESET STEM

CAM

SWIVEL NUT

MINUS, NEUTRAL, OR GROUND CONNECTION (TERMINAL #1)

OPTIONAL CONNECTION FOR MICROSWITCH (TERMINAL #2)

FLEXIBLE CONDUIT

Figure 2-32. Electric Control Head (Cover Removed)

Table 2-8. Electric Control Head

Control Head Part Number Voltage Amps.

WK-890181-000 24 Vdc 2.0 momentary

2-3.4.2 ELECTRIC AND CABLE-OPERATED CONTROL HEADS

These control heads (Figure 2-33) provide for electric, local manual and remote manual actuation of the CO

cylinder valve or directional (stop) valve. The control head is operated

electrically by a suppression control panel or mechanically by a cable pull box. it is also equipped with a lever for local manual operation.

These heads contain a microswitch whose contacts are used to break the electrical circuit to the solenoid when the head is actuated. This reduces the overall power consumption of the fire suppression system. The actuating pin latches in the released position and must be mechanically reset.

A suitable suppression control panel, specifically listed and/or approved for use with the following control heads shall be provided for supervision of the releasing circuits per NFPA requirements. In addition, a 24 hour back-up power source shall be provided per NFPA requirements. Electrical data is contained in Table 2-9.

September 2013 2-28 P/N 81-CO2MAN-001

Component Descriptions

MADE IN U. S.A.

RELEASED

ASHLAND,MA01721

400MAIN STREET

KIDDE-FENWAL,INC.

SET

ELECTRIC

PARTNO.

VOLTS

CONTROL HEAD

USESCREWDRIVER

TO RESET

AMPS

1/2 in. EMT CONNECTION

COMPRESSION TYPE FOR

REMOTE CABLE

SEAL WIRE

7-9/16 in. (192 mm)

5-7/16 in. (138 mm)

1/2 in. EMT CONNECTION

COMPRESSION TYPE TO

SECOND CONTROL HEAD

IF USED

CONNECTION FOR FLEXIBLE ELECTRIC CONDUIT 3/4 in. NPT (FEMALE)

LOCKING PIN

LOCAL MANUAL RELEASE LEVER

INDICATOR AND RESET STEM

SWIVEL NUT 1--1/2 in. (38 mm) HEX 1-1/4 in. - 18 NF-3 THREAD

Control Head Part Number Voltage Amps.

2-3.4.3 EXPLOSION PROOF ELECTRIC AND CABLE OPERATED CONTROL HEADS

Figure 2-33. Electric and Cable-Operated Control Head

Table 2-9. Electric and Cable Operated Control Head

81-895630-000 24 Vdc 2.0 momentary

The explosion proof electric and cable operated control heads (Figure 2-34) are designed for use in hazardous areas. The electric solenoid housing is rated for use in Class I, Groups C and D; and Class II, Groups E, F, and G hazardous locations.

These control heads provide for electric, local manual and remote manual actuation of the CO cylinder valve or directional (stop) valve. The control head is operated electrically by a suppression control panel or mechanically by a cable pull box. It is also equipped with a lever for local manual operation.

P/N 81-CO2MAN-001 2-29 September 2013

Component Descriptions

SET

RELEASED

TORESET

USESCREWDRIVER

FOR

MAINTENANCE

SEE

INSTRUCTIONS

CABLE

PULL

ELECTRIC

CONTROLHEAD

PARTNO.

MADEIN U.S.A.

KIDDE-FENWAL,INC.

400MAIN STREET

ASHLAND,MA 01721

VOLTS

HZ AMPS

CONNECTION FOR CABLE HOUSING TO SECOND CONTROL HEAD IF USED

3/8 in. NPS FEMALE

USE PNEUMATIC CONTROL HEAD CABLE HOUSINGS

INDICATOR AND

RESET STEM

CONNECTION WIRES 36 in. (914 mm) LONG

7-3/8 in.

(187 mm)

SWIVEL NUT 1-1/2 in. (38 mm) HEX 1-1/4 in. -18 NF-3 THREAD

LOCAL MANUAL RELEASE LEVER

CONNECTION FOR REMOTE PULL BOX PIPE OR CONDUIT 3/8 in. NPS MALE

SEAL WIRE

LOCKING PIN

CONNECTION FOR FLEXIBLE ELECTRIC CONDUIT 1/2 in. NPT FEMALE

4-15/16 in.

(125 mm)

OPERATING SOLENOID UL LISTED FOR USE IN THE FOLLOWING HAZARD LOCATIONS:

I C -13 TO +150 F

(-25 TO +65 C)

I D -40 TO +150 F

(-40 TO +65 C)

II E, F, G

CLASS GROUP OP TEMP

-40 TO +150 F (-40 TO +65 C)

Figure 2-34. Explosion Proof Electric and Cable Operated Control Head

Table 2-10. Explosion Proof Control Head

Control Head Part Number

WK-897494-000 Explosion Proof 24 Vdc 1.65 continuous 33.0 Watts

Type Voltage Amps. Power Rating

2-3.5 Pneumatic Control Heads

The pneumatic control head (Figure 2-35) is a non-electric mechanical device that allows for automatic actuation of carbon dioxide cylinders, stop valves, and directional valves by means of pressure pulses transmitted from heat-actuated detectors (HADs) via copper tubing. These control heads can also be remotely activated using a cable attached from the control head to a cable operated manual pull station. The control heads are also equipped with a manual lever for emergency local operation.

Pneumatic control heads operate on the rate-of-temperature-rise principle. This means that a sudden increase in the temperature must occur to cause the control head to operate.

The control head must be used in conjunction with a pneumatic heat detection system (rateof rise) and operates as follows: A pneumatic HAD is connected to the control head by copper tubing. As the temperature changes, the pressure within the detector varies. If the pressure increases rapidly, as in the event of fire, a diaphragm in the pneumatic control head will trip a lever mechanism, causing the control head to operate. The pneumatic control head is fitted with a vent so that slight changes in pressure due to normal changes in ambient temperature can be vented to atmosphere. The sensitivity of the pneumatic control head is determined by the internal pressure required to trip the control head lever. This pressure is called the setting and is measured in inches of water. Vent sizes are rated in terms of the time (in seconds) required to relieve two inches of water column pressure in the diaphragm chamber. The higher

September 2013 2-30 P/N 81-CO2MAN-001

Component Descriptions

PATENT: 246675

WALTER KIDDE

PART NO.

SET

RELEASED

INSTRUCTIONS

SEE

MAINTENANCE

FOR

USE SCREWDRIVER

PULL

CABLE

Kidde

TO RESET

CONTROL HEAD

PNEUMATIC

CONECTION FOR

DETECTION TUBING

3/16 in. TUBING NUT

FITS HERE

CONNECTION FOR REMOTE PULL BOX PIPE OR CONDUIT 3/8 in. NPS FEMALE

LOCAL MANUAL

RELEASE LEVER

SWIVEL NUT 1-1/2 in. (38 mm) HEX 1-1/4-18 NF-3 THREAD

4-13/16 in.

(122 mm)

CONNECTION FOR CABLE HOUSING TO SECOND CONTROL HEAD (IF USED) 3/8 in. NPS FEMALE

3-5/16 in.

(84 mm)

INDICATOR AND

RESET STEM

SEAL WIRE

LOCKING PIN

the vent setting, the smalle r the actual size o f the vent. A control head with a high setting is actually a very sensitive device.

The combination of diaphragm and vent settings for pneumatic control heads are shown in Table 2-11.

2-3.5.1 TANDEM PNEUMATIC CONTROL HEAD

Figure 2-35. Pneumatic Control Head

Table 2-11. Pneumatic Control Head Settings

Setting Control Head Part Number

3 inches, 5 sec. vent 81-872335-000 6 inches, 5 sec. vent 81-872365-000 6 inches, 2 sec. vent 81-872362-000

1 inch, Tandem 81-872310-000 3 inch, Tandem 81-872330-000 6 inch, Tandem 81-872360-000

As previously stated, two or more pilot cylinders are required for suppression systems consisting of three or more cylinders. When two pneumatic control heads are used to actuate a bank of cylinders, one control head must be of the type having a vent, and the second must be a tandem control head. The tandem pneumatic control head (Figure 2-36) is identical to the

P/N 81-CO2MAN-001 2-31 September 2013

Component Descriptions

3/16 in. x 17 in. LONG

COPPER TUBING

P/N WK-802366-000

CABLE BLOCK

PRIMARY PNEUMATIC CONTROL HEAD (VENTED)

CYLINDER CENTERS

CABLE HOUSING

TANDEM PNEUMATIC

CONTROL HEAD

3/8 in. PIPE OR ALTERNATE ASSEMBLY

CABLE

3/16 in. COPPER TUBING CONNECTION

3/16 in. TUBING TEE (SUPPLIED WITH TANDEM CONTROL HEAD)

regular pneumatic control head except that its detection chamber has no vent. Thus, all the compensation for normal environmental pressure changes is performed by the vented pneumatic control head. The diaphragm pressure setting of the tandem cont rol head is chos en to match that of its corresponding vented pneumatic control head. The two diaphragm chambers are interconnected via 3/16-inch copper tubing. If the system is to be actuated remotely via a pull box and cable, the manual cable control is connected to both the pneumatic and tandem control heads.

Figure 2-36. Tandem Pneumatic Control Head

2-3.6 Components for Pneumatic Actuation Systems

Pneumatic (rate-of-rise) systems utilize a variety of specialized components to control the

2-3.6.1 PNEUMATIC CABLE HOUSING

actuation of a carbon dioxide suppression system.

A pneumatic cable housing (Figure 2-37) is required when a pneumatic control head and a tandem control head are installed for simultaneous actuation by a remote pull box and cable. The housing protects the interconnecting cable between the two pneumatically-operated control heads and to secure the heads in a fixed position. The length of the cable housing (see Table 2-12) is determined by the size of the cylinders used in the suppression system.

September 2013 2-32 P/N 81-CO2MAN-001

Component Descriptions

3/8 in. NPT MALE

BUSHINGS

3/8 in. NPT MALE

3/4 in.

(19 mm)

HEX

Figure 2-37. Pneumatic Cable Housing

Table 2-12. Pneumatic Cable Housing Part Numbers

Cylinders Used With Cylinder Centers “A” Dimension

Part Number

lb. Kg in. mm in. mm

81-840044-000 25 - 35 11.3 - 15.8 9.5 241 4.68 119 81-840398-000 50 - 75 22.6 - 34.0 10.0 254 5.19 132 81-841739-000 100 45.3 11.625 295 6.82 173

2-3.6.2 HEAT ACTUATED DETECTOR

The pneumatic heat-actuated detector (HAD), Part No. WK-840845-000 (Figure 2-38), consists of a sealed hollow brass chamber having no moving parts. The detector is connected to the pneumatic control head(s) by copper tubing. The air pressure in the detector increases upon a rapid rate-of-rise in temperature, such as in the event of a fire. This pressure increase is transmitted to the pneumatic control head(s) via the copper tubing, causing the control head to actuate the system. The pneumatic heat detector, tubing, and pneumatic control head(s) system is vented to prevent normal ambient temperature changes from actuating the system.

P/N 81-CO2MAN-001 2-33 September 2013

Component Descriptions

7-3/8 in.

(188 mm)

1/4 in.

(6 mm)

SLOT FOR MOUNTING SCREW

1-3/4 in.

(45 mm)

1/2 in. EMT CONNECTOR (TYP)

1/2 in. EMT (TYP)

1/8 in. TUBING

1/8 in. TUBING UNION (SUPPLIED WITH DETECTOR)

CHAMBER

LOWER CAGE

5-5/16 in.

(135 mm)

2-7/8 in.

(73 mm)

UPPER CAGE

MOUNTING

BRACKET

2-3.6.3 HEAT COLLECTOR

The heat collector, Part No. WK-312720-000 (Figure 2-39), is a 16-inch square baffle plate constructed of 18 gauge galvanized steel and is used to capture rising heated air and combustion products generated by a fire. The heat collector is used when the HADs cannot be mounted at ceiling level.

Figure 2-38. Heat Actuated Detector (HAD), Industrial

September 2013 2-34 P/N 81-CO2MAN-001

Figure 2-39. Heat Collector

16 in.

(406 mm)

1 in.

(25 mm)

MOUNTING SURFACE FOR PNEUMATIC HEAT DETECTOR (MOUNT IN CENTER)

16 in.

(406 mm)

Component Descriptions

2-3.6.4 VENTS

One of the major factors that determines the response characteristics of a system utilizing heat actuated detectors is the size of the vents in the pneumatic control heads. If the on-site conditions change, the vents in the pneumatic control heads can be replaced to adjust to the new site conditions.

The vent size is measured in terms of seconds, and the number of seconds indicates the time required for venting two inches of water-column pressure. The larger the vent size, the more sensitive the system will be to temperature changes in the protected area. The vent sizes available are listed in Table 2-13.

Table 2-13. Vent Size

Part Number Vent Size

WK-802742-000 2

81-802743-000 3

WK-802745-000 5 WK-802746-000 10

P/N 81-CO2MAN-001 2-35 September 2013

Component Descriptions

1/8 in. TUBING NUT

P/N 81-207648-000

3/16 in. TUBING NUT

P/N WF-528103-000

3/16 in. UNION WITHOUT NUTS

P/N WK-528103-600

3/16 in. TEE WITHOUT NUTS

P/N WK-528103-700

1/8 in. UNION WITH NUTS

P/N 81-802355-000

3/16 X 1/8 in. REDUCING UNION

WITH 1/8 in. NUT

WITHOUT 3/16 in. NUT

P/N 81-802536-000

1/8 in. TEE WITH NUTS

P/N 81-802537-000

2-3.6.5 1/8-INCH COPPER TUBING

Within industrial systems, 1/8-inch copper tubing is used to interconnect the principal components of a pneumatically-actuated fire suppression system. The tubing is avai lable in 50foot, 100-foot and 250-foot bundles as indicated in Table 2-14.

Table 2-14. 1/8-inch Copper Tubing Part Numbers

Part Number Length (feet)

WK-802555-000 50 WK-802556-000 100 WK-207809-000 250

2-3.6.5.1 Fittings

Fittings (Figure 2-40) are available to join segments of 1/8-inch copper tubing, and to interface the 1/8-inch tubing with 3/16-inch tubing segments used to connect components such as pneumatic transmitters and control heads.

Figure 2-40. Fittings

September 2013 2-36 P/N 81-CO2MAN-001

2-3.6.5.2 Rubber Grommet

5-1/4 in.

(133 mm)

3/16 in. TUBING NUTS

3-1/4 in. DIA

(83 mm)

ALL LENGTHS HAVE TUBING NUTS AND FLARED ENDS P/N WK-802366-000

17 in. (432 mm) LENGTH ILLUSTRATED

The rubber grommet, Part No. WK-207825-000, is used to support and seal a  3/16-inch tubing penetration into a junction box.

2-3.6.6 3/16-INCH COPPER TUBING

In order to prevent damage, 3/16-inch heavy wall copper tubing (Figure 2-41) is used in pneumatic actuated systems where the tubing is exposed. It is specifically used to connect pneumatic control heads and pneumatic transmitters to junction boxes, and main-to-reserve valves. The 17-inch (432 mm) length is used to interconnect tandem control heads; the 46inch (1168 mm) length is used only for interface between control heads and tubing for HADs.

The tubing is available for these applications in the lengths indicated in Table 2-15.

Table 2-15. 3/16-inch Copper Tubing Part Numbers

Part Number Length

WK-802366-000 17 in. (432 mm)

81-802367-000 46 in. (1168 mm)

Component Descriptions

2-3.7 Pressure Operated Control Heads

2-3.7.1 PRESSURE OPERATED CONTROL HEAD

P/N 81-CO2MAN-001 2-37 September 2013

Pressure operated control heads utilize the pressure from either a CO actuate CO

cylinder valves or directional (stop) valves.

Figure 2-41. 3/16-inch Pneumatic Tubing

or nitrogen cylinder to

This control head, Part No. 82-878737-000 (Figure 2-42), consists of a spring-loaded pistonand-stem assembly housed in a brass body. The body has a thread ed inlet port that connects to the pressure line, and a sw ivel nut for connection to a control port. The supplied pressure actuates the spring-loaded piston-and-stem assembly to engage the pilot check of the control port to which it is connected.

Component Descriptions

2-3/16 in.

(56 mm)

SET

OPERATED

1-1/2 in. HEX

(38 mm)

1-1/4 - 18 UNEF-3B

SWIVEL NUT

PISTON

1/8 in. - 27 NPT PRESSURE INLET

1 in. HEX

(25 mm)

Figure 2-42. Pressure Operated Control Head

2-3.7.2 LEVER AND PRESSURE OPERATED CONTROL HEAD

The lever and pressure operated control head, Part No. 82-878751-000 (Figure 2-43), consists of a spring-loaded piston-and-stem assembly housed in a brass body, and a lever for emergency manual operation. The body has a threaded inlet port that connects to the pressure line and a swivel nut for connection to a control port. The supplied pressure, or manual operation of the lever, actuates the spring-loaded piston-and-stem assembly to engage the pilot check of the control port to which it is connected.

September 2013 2-38 P/N 81-CO2MAN-001

Component Descriptions

ALLOW APPROX. 2 in. (51 mm) CLEARANCE FOR OPERATION OF LEVER

SAFETY PIN

LEVER

SEAL WIRE

PISTON

1/8 in. NPT PRESSURE INLET

BODY

SET OPERATED

1-1/4 - 18 UNEF-3B

3 in.

(76 mm)

4-1/2 in.

(114 mm)

TO OPEN

CLOSED

OPEN

Figure 2-43. Lever and Pressure Operated Control Head

2-3.7.3 STACKABLE PRESSURE OPERATED CONTROL HEAD

The stackable pressure operated control head, Part No. 82-878750-000 (Figure 2-44), is similar in design and construction to the lever and pressure operated control head. It offers a stackable design and is used where a cable operated or electric/mechanical control head is also required.

P/N 81-CO2MAN-001 2-39 September 2013

Component Descriptions

3-1/2 in.

(89 mm)

1-1/4 - 18 UNEF-3A

CAP RETAINER

1/8 in. - 27 NPT PRESSURE INLET

PISTON

BODY

SET

OPERATED

STEM

1-1/4 - 18 UNEF-3B

Figure 2-44. Stackable Pressure Operated Control Head

2-3.8 Components for Pressure Operated Actuation Systems

2-3.8.1 NITROGEN PILOT CYLINDER AND BRACKET

Nitrogen pilot cylinders supply pressure to operate (via pressure operated control heads) CO pilot cylinders, stop valves, N2 discharge delays or N2 pressure operated sirens. Three d ifferent sized cylinder capacities are provided for use with CO

systems. Each cylinder is of steel

material and designed in accordance with USDOT and TC requirements. Each cylinder is factory pressurized to 1800-psig @ 70F and fitted with a pressure gauge and pressure relief device. Either pipe, tube or flexible hose connects each pilot cylinder to the pressure operated control head(s).

2-3.8.1.1 Nitrogen Pilot Cylinder, 108 cu. in.

The 108 cu. in. N

cylinders, stop valves, a N

Pilot Cylinder (P/N WK-877940-000) can be used to operate CO2 pilot

discharge delay or a N2 pressure operated siren. Any compatible

control head can be fitted to the cylinder to provide the desired means of operation. The cylinder valve has a 1/8-in NPT outlet. Any of the 1/8-in NPT x 5/16-in flare fittings can be used to connect the valve to the corresponding actuation line. The cylinder is secured using the wall mount bracket (P/N 81-87745-000).

2-3.8.1.2 Nitrogen Pilot Cylinder, 1040 cu. in.

The 1040 cu. in. N cylinders, stop valves or multiple N can be fitted to the cylinder to provide the desired means of operation. The cylinder has a 5/8-

Pilot Cylinder (P/N 90-101040-001) can be used to operate CO2 pilot

pressure operated sirens. Any compatible control head

in Type "I" style valve affixed with a pressure gauge. In addition to the control head, this valve requires attachment of a discharge head to allow discharge of the cylinder contents. The ½-in NPT N

September 2013 2-40 P/N 81-CO2MAN-001

discharge hose (P/N 06-118207-00X) connects the discharge head to the

corresponding actuation line. The cylinder is secured using the single cylinder strap (P/N WK-

5/16 in. TUBING COUPLING (BOTH ENDS)

1-3/8 in. (35 mm)

HOSE - 1/4 in. I.D.

5/8 in. HEX SWIVEL

NUT (BRASS)

270014-000). Approved for use in environments from 32°F to 130°F.

2-3.8.1.3 Nitrogen Pilot Cylinder, 2300 cu. in.

Component Descriptions

The 2300 cu. in. N cylinders, stop valves or multiple N can be fitted to the cylinder to provide the desired means of operation. The cylinder has a 5/8in Type "I" style valve affixed with a pressure gauge. In addition to the control head, this valve requires attachment of a discharge head to allow discharge of the cylinder contents. The ½-in NPT N

discharge hose (P/N 06-118207-00X) connects the discharge head to the

corresponding actuation line. The cylinder is secured using the single cylinder strap (P/N WK270014-000) or the dual cylinder strap (P/N WK-241219-000). Approved for use in environments from 32°F to 130°F.

2-3.8.2 ACTUATION HOSE

The actuation hose (Figure 2-45), is used to connect a pilot cylinder to pressure operated control heads or actuation tubing. The 1/4-inch flexible hose is constructed with wire-braided reinforcements and swivel nuts at both ends for ease of assembly. The hose is available in two lengths as shown in Table 2-16.

Pilot Cylinder (P/N 90-102300-001) can be used to operate CO2 pilot

pressure operated sirens. Any compatible control head

2-3.8.3 FITTINGS

Fittings (Figure 2-46) are available to interconnect the actuation hose to the pressure operated control head(s) or actuation tubing.

Figure 2-45. 1/4-inch Actuation Hose

Table 2-16. 1/4-inch Actuation Hose Part Numbers

Part Number Dimension “A”

WK-264986-000 30 WK-264987-000 22

P/N 81-CO2MAN-001 2-41 September 2013

Component Descriptions

MALE ELBOW

1/8 in. NPT x 5/16 in. TUBING

P/N WK-699205-030

MALE CONNECTOR

1/8 in. NPT x 5/16 in. TUBING

P/N WK-699205-010

MALE BRANCH TEE

1/8 in. NPT x 5/16 in. TUBING

P/N WK-699205-050

INST ALL VALVE WITH ARROW POINTING IN DIRECTION OF FLOW

2-4 CHECK VALVES

Figure 2-46. Fittings

Check valves are required for fire suppression systems that are equipped with a main and reserve set of carbon dioxide cylinders. They are installed in each discharge manifold to isolate the main and reserve cylinders from each other.

Check valves are also employed in directional valve systems that use a common set of carbon dioxide cylinders to protect areas or equipment of unequal sizes. The check valves divide the cylinder group into subsets for discharge of the required amounts of carbon dioxide into the protected areas or equipment.

2-4.1 Check Valves (1/4-inch through 3/8-inch)

The 1/4-inch and 3/8-inch check valves (Figure 2-47) ar e also used in Nitrogen or CO lines; part numbers and dimensions are provided in Table 2-17.

pilot

September 2013 2-42 P/N 81-CO2MAN-001

Figure 2-47. Check Valves (1/4-inch and 3/8-inch)

Component Descriptions

VALVE MUST BE

INSTALLED WITH

ARROW POINTING IN

DIRECTION OF FLOW

Table 2-17. Check Valve Dimensions (1/4-inch through 3/8-inch)

Part Number Valve Size

Pipe Thread

“C”

WK-264985-000 1/4 in. 1/4 in. - 18 NPT 2.00 51 0.81 21 WK-261193-000 3/8 in. 3/8 in. - 18 NPT 2.35 60 1.00 25

2-4.2 Check Valves (1/2-inch through 2-inch)

The 1/2-inch through 1 1/4-inch check valves (Figure 2-48) are in-line valves and consist of a threaded brass body which houses a spring loaded piston; part numbers and dimensions are provided in Table 2-18. The piston permits flow through the valve in one direction only.

Figure 2-48. Check Valves (1/2-inch to 1-1/4-inch)

“A” “B”

in. mm in. mm

Table 2-18. Check Valve Dimensions (1/2-inch through 1-1/4-inch)

Part Number Valve Size

Pipe Thread

“C”

81-800327-000 1/2 in. 1/2 in. - 14 NPT 3.34 85 2 51 81-800266-000 3/4 in. 3/4 in. - 14 NPT 3.34 85 2 51

WK-800443-000 1 in. 1 in. - 11.5 NPT 3.97 101 3.18 81

81-800444-000 1-1/4 in. 1-1/4 in. - 11.5 NPT 3.97 101 3.18 81

“A” “B”

in. mm in. mm

The 1-1/2-inch and 2-inch check valves (Figure 2-49) consist of a brass body which houses a spring loaded stop check; part numbers and dimensions are provided in Table 2-19. The stop check permits flow in one direction only.

These valves are fitted with threaded inlet and outlet ports.

P/N 81-CO2MAN-001 2-43 September 2013

Component Descriptions

VALVE MUST BE

INSTALLED WITH

ARROW POINTING IN

DIRECTION OF FLOW

Table 2-19. Check Valve Dimensions (1-1/2-inch through 2-inch)

Figure 2-49. Check Valves (1-1/2-inch to 2-inch)

“A” “B” “C”

in. mm in. mm in. mm

Part Number Valve Size

Pipe Thread

“D”

81-870152-000 1-1/2 in. 1-1/2 in. - 11.5 NPT 7.50 151 6.28 160 4.75 121 81-870151-000 2 in. 2 in. - 11.5 NPT 7.50 151 6.28 160 4.75 12 1

2-4.3 Check Valves (2 1/2-inch through 3-inch)

The 3-inch check valve, Part No. 81-870100-000 (Figure 2-50) is similar in construction and operation to the 1 1/2-inch and 2-inch check valves.

This valve has flanged inlet and outlet ports and requires two appropriately sized welding neck flanges and gaskets for connection to either 2 1/2-inch or 3-inch distribution piping.

September 2013 2-44 P/N 81-CO2MAN-001

Component Descriptions

INLET

3/4 in. X 4-1/2 in. (114 mm) LG. HEX BOLT

P/N WK-196648-720

16 REQUIRED

10-1/2 in. (267 mm)

OUTLET

3/4 in. HEX NUT

P/N WK-152348-000

16 REQUIRED

GASKET

P/N WK-200973-000

2 REQUIRED

2-1/2 in. WELDING NECK FLANGE

P/N WK-263716-000

2 REQUIRED

-OR-

3 in. WELDING NECK FLANGE

P/N WK-681012-000

2 REQUIRED

SIDE VIEW

WITHOUT

ASSEMBLED FLANGE

8-1/4 in. (210 mm) DIAMETER FLANGE 6-5/8 in. (168 mm) BOLT CIRCLE

Figure 2-50. Check Valves (2 1/2-inch to 3-inch)

2-4.3.1 2 1/2-INCH WELDING NECK FLANGE

2-4.3.2 3-INCH WELDING NECK FLANGE

The 2 1/2-inch welding neck flange, Part No. WK-263716-000 (Figure 2-50), is required to attach the 3-inch check valve to 2 1/2-inch distribution piping. Two flange s are required per valve.

The 3-inch welding neck flange, Part No. WK-681012-000 (Figure 2-50), is required to attach the 3-inch check valve to 3-inch distribution piping. Two flanges are required per valve.

2-4.3.3 3-INCH FLANGE GASKET

The 3-inch flange gasket, Part No. WK-200973-000 (Figure 2-50) is required to seal the connection between the 3-inch check valve and either the 2 1/2-inch or 3-inch welding neck flange. Two gaskets are required per valve.

2-4.3.4 NUTS AND BOLTS

3/4-inch hex nuts, Part No. WK-152308-000 (Figure 2-50), and 3/4-inch by 4 1/2-inch long bolts, Part No. WK-196648-720 (Figure 2-50), are required to connect the 2 1/2-inch or 3-inch welding neck flanges to the 3-inch check valve. A total of 16 nuts and bolts are required per check valve.

P/N 81-CO2MAN-001 2-45 September 2013

Component Descriptions

INLETVALVE SIZE

OUTLET

NPT

BOTH ENDS

1-1/4 - 18 NF-3 FOR CONTROL HEAD CONNECTION

2-5 DIRECTIONAL (STOP) VALVES

Directional (stop) valves find two primary applications in carbon dioxide systems. The first application is in multi-hazard systems which share a common carbon dioxide suppression system. Directional valves are used to route the carbon dioxide from the shared supply to the individual areas or equipment being protected.

The second application for these valves is as a life safety device to prevent the accidental discharge of carbon dioxide into a normally-occupied area. The stop valve prevents the flow of carbon dioxide until the attached control head is operated.

All Kidde Fire Systems directional (stop) valves operate on a differential-pressure principle, utilizing the pressure of the discharging carbon dioxide to open the stop check and allow flow through the valve. All valves automatically reset (close) after discharge is completed.

Directional (stop) valves do NOT prevent flow in the direction opposite the

CAUTION

arrow.

All control heads must be in the set position before attaching to the directional

CAUTION

(stop) valves, in order to prevent accidental CO

discharge.

2-5.1 Directional (Stop) Valves (1/2-inch through 2-inch)

The 1/2-inch through 2-inch size directional valves (Figure 2-51) have bronze bodies which house a stop check and an actuating piston, along with an external port for attachment of a control head (part numbers and dimensions are provided in Table 2-20). Actuation of a control head allows the discharged carbon dioxide to apply pressure to the actuating piston to open the stop check.

These directional valves have threaded inlet and outlet ports for connection to the distribution piping.

Figure 2-51. Directional (Stop) Valves (1/2-inch through 2-inch)

September 2013 2-46 P/N 81-CO2MAN-001

Component Descriptions

INLET

3/4 in. X 4-1/2 in. (114 mm) LG. HEX BOLT

P/N WK-196648-720

16 REQUIRED

10-1/2 in. (267 mm)

OUTLET

3/4 in. HEX NUT

P/N WK-152308-000

16 REQUIRED

GASKET

P/N WK-200973-000

2 REQUIRED

2-1/2 in. WELDING NECK FLANGE

P/N WK-263716-000

2 REQUIRED

-OR-

3 in. WELDING NECK FLANGE

P/N WK-681012-000

2 REQUIRED

SIDE VIEW

WITHOUT

ASSEMBLED FLANGE

8-1/4 in. (210 mm) DIAMETER FLANGE 6-5/8 in. (168 mm) BOLT CIRCLE

1-1/4 in. - 18 NF-3 MALE

FOR CONTROL HEAD

CONNECTION

9-13/16 in. (249 mm)

Table 2-20. Check Valve Dimensions (1 1/2-inch through 2-inch)

“A” “B” “C”

in. mm in. mm in. mm

Part Number Valve Size

Pipe Thread

“D”

81-870023-000 1/2 in. 1/2 in. - 14 NPT 3.75 95 2.50 64 4.68 119 81-870022-000 3/4 in. 3/4 in. - 14 NPT 4.25 108 2.81 71 5.68 144 81-870122-000 1 in. 1 in. - 11.5 NPT 5.50 140 3.62 92 6.87 175 81-870032-000 1-1/4 in. 1-1/4 in. - 11.5 NPT 5.50 140 3.62 92 6.87 175 81-800123-000 1-1/2 in. 1-1/2 in. - 11.5 NPT 7.50 191 4.75 121 8.43 214 81-800049-000 2 in. 2 in. - 11.5 NPT 7.50 191 4.75 121 8.43 21 4

2-5.2 Directional (Stop) Valves (2 1/2-inch through 4-inch)

The 3-inch and 4-inch directional valves, Part Nos. 81-890010-000 and 81-890208-000 respectively (Figure 2-52 and Figure 2-53), are similar in construction and operation as the 1/2-inch through 2-inch size directional valves. These valves have flanged inlet and outlet ports and require two appropriately-sized flanges and gaskets for connection to the distribution piping.

2-5.2.1 2 1/2-INCH AND 3-INCH VALVES

For the 3-inch valve, Part No. 81-890010-000 (Figure 2-52), see Paragraph 2-4.3.1 through Paragraph 2-4.3.4 for descriptions of the components required for connection to 2 1/2-inch and 3-inch piping.

P/N 81-CO2MAN-001 2-47 September 2013

Figure 2-52. Directional (Stop) Valves (2-1/2-inch and 3-inch)

Component Descriptions

INLET

7/8 in. X 5 in. (127 mm) LG. HEX BOLT

P/N WK-196656-800

16 REQUIRED

12-1/8 in.

(308 mm)

OUTLET

7/8 in. HEX NUT

P/N WK-152356-000

16 REQUIRED

GASKET

P/N WK-200150-000

2 REQUIRED

4 in. WELDING NECK FLANGE

P/N WK-681016-000

2 REQUIRED

SIDE VIEW

WITHOUT

ASSEMBLED FLANGE

10-3/4 in. (273 mm) DIAMETER FLANGE 8-1/2 in. (216 mm) BOLT CIRCLE

11-1/16 in.

(281 mm)

1-1/4 in. - 18 NF-3 MALE FOR CONTROL HEAD CONNECTION

2-5.2.2 4-INCH VALVE

The 4-inch valve, Part No. 81-890208-000 (Figure 2-53), has flanged inlet and outlet ports that require the flanges, gaskets and fasteners described in Paragraph 2-5.2.3, Paragraph 2-5.2.4 and Paragraph 2-5.2.5 for connection to the distribution piping.

The 4-inch valve has flanged inlet and outlet ports that require the following flanges, gaskets and fasteners for connection to the distribution piping.

2-5.2.3 4-INCH FLANGE

The 4-inch welding neck flange, Part No. WK-681016-000 (Figure 2-53), is required to attach the 4-inch directional (or stop) valve to 4-inch distri bution piping. Two flanges are required per valve.

2-5.2.4 4-INCH GASKET

The 4-inch flange gasket, Part No. WK-200150-000 (Figure 2-53), is required to seal the connection between the 4-inch directional valve and the 4-inch welding neck flange. Two gaskets are required per valve.

2-5.2.5 NUTS AND BOLTS

7/8-inch hex nuts, Part No WK-152356-000 (Figure 2-53), and 7/8-inch by 5-inch long bolts, Part No. WK-196656-800 (Figure 2-53), are required to connect the 4-inch welding neck flanges to the 4-inch directional valve. A total of 16 nuts and bolts are required per valve.

Figure 2-53. Directional (Stop) Valve (4-inch)

September 2013 2-48 P/N 81-CO2MAN-001

2-6 LOCKOUT VALVES

Component Descriptions

A lockout valve is a manually operated valve installed between the CO discharge pipe to the protected area. The lockout valve can be locked in the closed position to prevent carbon dioxide from discharging into the protected area. The lockout valve shall be installed at the end of the CO

manifold or, if a common manif old protects multipl e hazards,

after each selector valve. The lockout valve consists of a carbon steel or stainless s teel val ve with threaded ends. Either

valve style can be provided with or without limit switches.

2-6.1 Lockout Valves without Limit Switches

The lockout valve without lim it switches (Figure 2-54) is available in sizes 1/4” thru 2”. The part numbers and dimensions are provided in Table 2-21.

manifold and the

Figure 2-54. Lockout Valves without Limit Switches

P/N 81-CO2MAN-001 2-49 September 2013

Component Descriptions

Table 2-21. Carbon Steel Lockout Valves without Limit Switches Dimensions and Part Numbers

Valve

Size

1/4” 10611105 2.73 1.55 0.50 1.03 0.50 1.25 4.00 2.26 0.31 0.19 1.1 Reduced Port 1/2” 70985075 2.73 1.55 0.50 1.03 0.50 1.25 4.00 2.26 0.31 0.19 1.1 Reduced Port 3/4” 70985076 3.50 1.92 0.50 1.38 0.88 1.63 5.50 3.10 0.50 0.31 2.7 Full Port

1” 70985077 3.60 1.92 0.50 1.38 0.88 1.75 5.50 3.10 0.50 0.31 2.8 Reduced Port 1 1/4” 70985078 3.93 2.10 0.56 1.63 1.00 2.00 5.50 3.23 0.50 0.31 3.7 Reduced Port 1 1/2” 70985079 4.55 2.47 0.75 1.88 1.25 2.38 7.00 3.93 0.63 0.38 5.0 Reduced Port

2” 70985080 4.94 2.66 0.75 2.12 1.50 2.88 7.00 4.12 0.63 0.38 6.8 Reduced Port

part

number

ABCDEFHJRS

Approximate Dimensions (inches)

Approx. WT (lb)

Valve Style

Table 2-22. Stainless Steel Lockout Valves without Limit Switches Dimensions and Part Numbers

Valve

Size

1/4” 10611104 2.73 1.55 0.50 1.03 0.50 1.25 4.00 2.26 0.31 0.19 1.1 Reduced Port 1/2” 10611100 2.73 1.55 0.50 1.03 0.50 1.25 4.00 2.26 0.31 0.19 1.1 Reduced Port 3/4” 10611101 3.50 1.92 0.50 1.38 0.88 1.63 5.50 3.10 0.50 0.31 2.7 Full Port

1” 10611099 3.60 1.92 0.50 1.38 0.88 1.75 5.50 3.10 0.50 0.31 2.8 Reduced Port

part

number

ABCDEFHJRS

Approximate Dimensions (inches)

Approx. WT (lb)

Valve Style

1 1/4” 10611102 3.93 2.10 0.56 1.63 1.00 2.00 5.50 3.23 0.50 0.31 3.7 Reduced Port 1 1/2” 10611098 4.55 2.47 0.75 1.88 1.25 2.38 7.00 3.93 0.63 0.38 5.0 Reduced Port

2” 10611103 4.94 2.66 0.75 2.12 1.50 2.88 7.00 4.12 0.63 0.38 6.8 Reduced Port

Figure 2-55. Lockout Valves with Lock

September 2013 2-50 P/N 81-CO2MAN-001

2-6.2 Lockout Valves with Limit Switches

The lockout valve with 2 SPDT limit switches and indicator(Figure 2-56) is available in sizes 1/4” thru 2”. The part numbers and dimensions are provided in Table 2-23.

Component Descriptions

Figure 2-56. Lockout Valves with Limit Switches

Table 2-23. Carbon Steel Lockout Valves with Limit Switches Dimensions and Part Numbers

Dimensions

Valve Size ASSY P/N Ball Valve P/N

ABC

1/4” 70985018 10611105 1.55 2.73 9.25 7 1/2” 70985020 70985075 1.55 2.73 9.25 7 3/4” 70985021 70985076 1.92 3.50 9.25 8

1” 70985022 70985077 1.92 3.60 9.25 9 1 1/4” 70985023 7098507 8 2.10 3.93 9.85 10 1 1/2” 70985024 7098507 9 2.47 4.55 10.05 12

2” 70985025 70985080 2.66 4.94 10.25 12

Approx. WT (lb)

Table 2-24. Stainless Steel Lockout Valves with Limit Switches Dimensions and Part Numbers

Dimensions

Valve Size ASSY P/N Ball Valve P/N

ABC

Approx. WT (lb)

1/4” 10611106 10611004 1.55 2.73 9.25 7 1/2” 10611107 10611100 1.55 2.73 9.25 7 3/4” 10611108 10611101 1.92 3.50 9.25 8

1” 10611109 10611099 1.92 3.60 9.25 9 1 1/4” 10611110 1061110 2 2.10 3.93 9.85 10 1 1/2” 10611111 1061109 8 2.47 4.55 10.05 12

2” 10611112 10611103 2.66 4.94 10.25 12

P/N 81-CO2MAN-001 2-51 September 2013

Component Descriptions

2-6.3 Lockout Valve with Explosion Proof Limit Switches

The lockout valve with 2 SPDT explosion proof limit switches and indicator(Figure 2-57) is available in sizes 1/4” thru 2”. The part numbers and dimensions are provided in Table 2-25.

Figure 2-57. Lockout Valve with Explosion Proof Limit Switches

Table 2-25. Carbon Steel Lockout Valv e with Explosio n Proof Li mit S witches Dimensions and Part Numbers

Valve

Size

1/4” 70985090 10611105 1.55 2.73 9.25 7 1/2” 70985069 70985075 1.55 2.73 9.25 7 3/4” 70985070 70985076 1.92 3.50 9.25 8

1” 70985071 70985077 1.92 3.60 9.25 9 1 1/4” 70985072 70985078 2.10 3.93 9.85 10 1 1/2” 70985073 70985079 2.47 4.55 10.05 12

2” 70985074 70985080 2.66 4.94 10.25 12

ASSY P/N Ball Valve P/N

Dimensions

ABC

Approx. WT (lb)

Table 2-26. Stainless Steel Lockout Valve with Explosion Proof Limit Switches Dimensions and Part

Numbers

Valve

Size

1/4” 10611113 10611004 1.55 2.73 9.25 7 1/2” 10611114 10611100 1.55 2.73 9.25 7 3/4” 10611115 10611101 1.92 3.50 9.25 8

ASSY P/N Ball Valve P/N

Dimensions

ABC

Approx. WT (lb)

1” 10611116 10611099 1.92 3.60 9.25 9 1 1/4” 10611117 10611102 2.10 3.93 9.85 10 1 1/2” 10611118 10611098 2.47 4.55 10.05 12

2” 10611119 10611103 2.66 4.94 10.25 12

September 2013 2-52 P/N 81-CO2MAN-001

2-6.4 CO2 System Lockout Valve Operational Sign

VALVE CLO SED

LOCKE D OU T

CARBON DIOXIDE SYSTEM

LOCK OUT VALVE

VALVE OPE N

An operational sign, P/N 06-231867-379, may be installed with all lockout valves to provide operational instructions for the lockout valve. The sign is 9” x 5”, made of Aluminium.

Figure 2-58. CO2 System Lockout Valve Operational Sign

2-7 DISCHARGE NOZZLES

Discharge nozzles control the distribution of carbon dioxide into the protected area or onto the protected equipment (or process). Kidde Fire Systems discharge nozzles are designed to provide the proper combination of flow rate and discharge pattern to protect vital equipment in a total-flooding manner or on a local application basis.

Component Descriptions

Kidde Fire Systems discharge nozzles are marked to identify the nozzle and show the nozzle' s equivalent single orifice diameter. The equivalent diameter refers to the orifice diameter of a "standard" single orifice type nozzle having the same flow rate as the Kidde Fire Systems nozzle.

The orifice code numbers indicate the equivalent single-orifice diameter in 1/32-inch increments. A plus (+) symbol is used to indicate a 1/64-inch increment.

2-7.1 Multijet Nozzle, Type S

The type S multijet nozzles (listed in Table 2-27) have a female 1/2-inch NPT inlet connection for attaching to the CO

distribution piping. Strainers are provided with nozzles having orifice

code numbers from 2 to 5+. Type S nozzle sizes and styles are summarized in Table 2-27.

P/N 81-CO2MAN-001 2-53 September 2013

Component Descriptions

Table 2-27. Type S Nozzles

Orifice Code

No.

2 803381 803897 802990

2+ 803365 803881 802974

3 803366 803882 802975

3+ 803367 803883 802976

4 803368 803884 802977

4+ 803369 803885 802978

5 803370 803886 802979

5+ 803371 803887 802980

6 803372 803888 802981

6+ 803373 803889 802982

7 803374 803890 802983

7+ 803375 803891 802984

8 803376 803892 802985

8+ 803377 803893 802986

9 803378 803894 802987

9+ 803379 803895 802988

10 803380 803896 802989

S S-Zinc S-Flanged

The basic type S nozzle (Figure 2-59) has a red painted cold-rolled steel body. A zinc plated finish is available as an option. (previous versions were offered with a cadmium plating.)

September 2013 2-54 P/N 81-CO2MAN-001

Component Descriptions

2 OR 4 ORIFICES

1-1/8 in. (29 mm) HEX

1/2 in. NPT FEMALE

STRAINER - INCLUDED IN TYPE “S” NOZZLES WITH NOZZLE CODE NOS. FROM 2 TO 5+

THROAT

NOZZLE CODE NUMBER STAMPED HERE

5 in.

(127 mm)

3-1/2 in.

(89 mm)

Figure 2-59. Multijet Nozzle, Type S

A flanged type S nozzle (Figure 2-60) and flanged mounting kit are also available for mounting the nozzle on the exterior of a duct or enclosure. The flanged mounting kit includes a frangible disc which ruptures upon discharge to allow flow from the nozzle. The flanged nozzle and mounting kit may be used to prevent particulate and liquid matter from clogging the orifices. The flanged nozzle body is painted red.

P/N 81-CO2MAN-001 2-55 September 2013

Component Descriptions

2 OR 4 ORIFICES

1-1/8 in. (29 mm) HEX

1/2 in. NPT FEMALE

THROAT

NOZZLE CODE NUMBER STAMPED HERE

5 in.

(127 mm)

4-1/4 in.

(108 mm)

STRAINER - INCLUDED IN TYPE “S” NOZZLES WITH NOZZLE CODE NOS. FROM 2 TO 5+

Figure 2-60. Multijet Nozzle, Type S Flanged

2-7.1.1 FLANGED NOZZLE MOUNTING KIT, TY PE S NOZZLE

The flanged mounting kit, Part No. 81-803330-000 (Figure 2-61, Figure 2-62 and Figure 2-63), contains two holding rings and a gasket (Part No. WK-201004-000) required to install a frangible disc on the S-nozzle outlet, or for installation of this nozzle to a duct or an enclosure.

Table 2-28. Flanged Nozzle Mounting Kit BOM

Description Quantity

Disc, Aluminum, Part Number WK-310020-000 2

Gasket, Part Number WK-201004-000 1

Flat Head Screw - 5/16 in. -18 x 7/8 in. 3

Ring Tapped 1

Ring Holding 2

Bolt, 5/16 in. -18 x 1/2 in. 3

Lockwasher — 5/16 in. 6

Nut, Hex 5/16 in. -18 3

September 2013 2-56 P/N 81-CO2MAN-001

Component Descriptions

BOLTS - 5/16-18 x 1/2 in. LOCKWASHERS - 5/16 HEX NUTS - 5/16 - 18

3 HEX NUTS

3 LOCKWASHERS

HOLDING RING

FRANGIBLE DISC

GASKET

HOLDING RING

3 BOLTS

TYPICAL TYPE “S” FLANGED NOZZLE

Figure 2-61. Flanged Nozzle Mounting Kit (Orifice Protection Only)

P/N 81-CO2MAN-001 2-57 September 2013

Component Descriptions

HOLDING RING

GASKET

FRANGIBLE DISC

(OPTIONAL)

3 FLAT

HEAD SCREWS

3 BOLTS

3 LOCKWASHERS

TYPICAL TYPE “S” FLANGED NOZZLE

3 TAPPED HOLES 120 DEGREES APART

TAPPED RING

3 DRILLED HOLES 120 DEGREES APART

HOLDING RING

3 LOCKWASHERS

3 HEX NUTS

BOLTS - 5/16 - 18 x 1/2 in. FLAT HEAD SCREWS - 5/16 - 18 x 7/8 in. LOCKWASHERS - 5/16 HEX NUTS - 5/16 - 18

Figure 2-62. Flanged Nozzle Mounting Kit (Duct or Enclosure Mounting)

September 2013 2-58 P/N 81-CO2MAN-001

Figure 2-63. Flange Mounting Hole Pattern

NOTE: A FULL-SIZE TEMPLATE IS AVAILABLE ONLINE FROM KIDDE FIRE SYSTEMS.

3-3/8 in. (86 mm) DIAMETER HOLE FOR AGENT DISCHARGE

4-5/8 in. (118 mm) DIAMETER BOLT CIRCLE

(3) 3/8 in. (9.6 mm) HOLES EQUALLY SPACED FOR FLAT HEAD SCREWS

Component Descriptions

2-7.1.2 ALUMINUM DISC

A frangible aluminum disc, Part No. WK-310020-000 (Figure 2-61 and Figure 2-62), is available to prevent the entry of particulate matter into a type S nozzle. This disk is included with the Flanged Nozzle Mounting Kit, Part No. 81-803330-000.

2-7.1.3 STAINLESS STEEL DISC

A frangible stainless steel disc, Part No. 81-220299-000 (Figure 2-61 and Figure 2-62), is available to prevent the entry of particulate matter into a type S nozzle.

2-7.2 Multijet Nozzle, Type M

The type M multijet nozzle (Figure 2-64) is similar in design and operation to the type S nozzle, and is used for applications requiring higher flow rates than those attainable with the type S nozzle. Strainers are provided with nozzles having orifice code numbers from 4 to 5+. The nozzle body is longer than the type S body in order to accommodate the higher flow rates. The type M nozzle has a red painted cold-rolled steel body. The Type M multijet nozzles have a  3/4 inch NPT inlet connection for attaching to the CO

distribution piping.

P/N 81-CO2MAN-001 2-59 September 2013

Component Descriptions

2OR4

ORIFICES

9-1/2 in.

(241 mm)

5-1/8 in.

(130 mm)

NOZZLE CODE NUMBER STAMPED HERE

THROAT

STRAINER - INCLUDED IN TYPE “M” NOZZLES WITH NOZZLE CODE NOS. FROM 4 TO 5+

3/4 In. NPT FEMALE

1-3/8 in. (35 mm) HEX

Figure 2-64. Multijet Nozzle, Type M

The type M nozzles are summarized in Table 2-29.

Table 2-29. Type M Nozzles

Size Part Number

4 842319

4+ 842320

5 842321

5+ 842322

6 842323

6+ 842324

7 842325 8 842326

9 842327 10 842328 11 842329 12 842330 13 842331 14 842332 15 842333

September 2013 2-60 P/N 81-CO2MAN-001

2-7.3 Vent Nozzle, Type V

1/2 in. NPT FEMALE

1-1/4 in. (29 mm)

HEX

STRAINER - INCLUDED IN TYPE “V” NOZZLES WITH NOZZLE CODE NOS. FROM 1TO4+

ORIFICE-(1)

1/2 in. NPT MALE

1-11/16 in.

(43 mm)

ARROW SHOWS

DIRECTION OF FLOW

NOZZLE CODE NUMBER

STAMPED HERE

The type V vent nozzle (Figure 2-65) is a single-orifice nozzle used to discharge a jet of carbon dioxide into an enclosure such as a duct. Strainers are provided with nozzles having orifice code numbers from 1 to 4+. The type V nozzles are only used for total flooding applications.

Component Descriptions

Figure 2-65. Vent Nozzle, Type V

The sizes are summarized in Table 2-30.

Table 2-30. Type V Vent Nozzles

Orifice Code

No.

1 930066 81098656

1+ 930067 81098657

2 919309 81098658

2+ 803327 81098659

3 929242 81098660

3+ 803328 81098661

4 915876 81098662

4+ 803329 81098663

5 214721 81098664

5+ 214722 81098665

6 214723 81098666

6+ 214724 81098667

7 214725 81098668

7+ 214726 81098669

8 214727 81098670

8+ 214728 81098671

9 214729 81098672

V V-Stainless

P/N 81-CO2MAN-001 2-61 September 2013

Component Descriptions

3 in.

(76 mm)

FLANGE

WASHER

ADAPTER

FRANGIBLE DISC

TYPICAL TYPE “V” NOZZLE

1-11/16 in.

(43 mm)

3-7/32 in. (6 mm) HOLES EQUALLY SPACED

HOLE FOR AGENT DISCHARGE

1 in. (25 mm) MINIMUM 2 in. (51 mm) MAXIMUM

RECOMMENDED HARDWARE FOR MOUNTING - 3/16 in. NUTS AND BOLTS

(3) 7/32 in. HOLES EQUALLY SPACED

2-1/2 in. (63.5 mm) BOLT CIRCLE

DRILLING PATTERN

NOTE: A FULL-SIZE TEMPLATE IS AVAILABLE ONLINE FROM KIDDE. REFERENCE DATASHEET K-81-1141

2-7.3.1 FLANGE AND COVER ASSEMBLY, TYPE V NOZZLE

The flange and cover assembly, Part No. 81-844492-000 (Figure 2-66), contains a flanged adapter, a washer, and a frangible disc for the installation of a vent nozzle to a duct or an enclosure. The aluminum frangible disc is designed to prevent the entry of particulate matter into the vent nozzle's orifice. Both the frangible disc (Part No. WK-260885-000) and the washer (Part No. WK-260884-000) can be purchased separately.

Figure 2-66. Flange and Cover Assembly, Type “V” Nozzle

2-7.4 Multijet Nozzle, Type L

The type L multijet nozzle (Figure 2-67) has a 1/2-inch NPT female connection for attaching to the CO

distribution piping. Strainers are provided with nozzles having orifice code numbers

from 3+ to 5+. The discharge produces a 180

tanks, drain boards and similar two dimensional hazards. The nozzle is attached to the side of a tank and offers no obstruction to overhead trolleys or dipping operations.

The type L nozzles are only used for l o c al a p p li c a t ion systems.

flat fan pattern that is highly effective for protection of dip

September 2013 2-62 P/N 81-CO2MAN-001

Component Descriptions

1/2 in. NPT FEMALE

STRAINER INCLUDED IN TYPE “L” NOZZLES WITH NOZZLE CODE NOS. FROM2TO5+

THROAT

NOZZLE CODE NUMBER STAMPED HERE

7-1/16 in.

(179.4 mm)

6 in.

(152.4 mm)

1-1/4 in.

(31.7 mm)

HEX

ORIFICES

1/4 in.

(6.4 mm)

1-7/8 in.

(47.6 mm)

11 mm DIAMETER (2) MTG. HOLES

2-3/8 in.

(60.3 mm)

6 in.

(152.4 mm)

3-5/8 in.

(92.1 mm)

Figure 2-67. Multijet Nozzle, Type L

The sizes are summarized in Table 2-31.

Table 2-31. Type L Nozzles

Size Part Number

3+ 842334

4 842335

4+ 842336

5 842337

5+ 842338

6 842339

6+ 842340

7 842341

7+ 842342

8 842343

8+ 842344

9 842345

9+ 842346

2-8 AUXILIARY EQUIPMENT

Auxiliary equipment consists of supplementary items required for a fully-functional carbon dioxide system, such as pressure switches and trips, pressure operated time delays, sirens, and warning and instruction plates.

P/N 81-CO2MAN-001 2-63 September 2013

10 842347

Component Descriptions

PRESSURE OPERATED SWITCH

3P.D.T.

Kidde

4 in.

(102 mm)

4 in.

(102 mm)

OPERATED

SET

(4) 1/4 in. MOUNTING HOLES

OPERATED

SET

STEM SHOWN IN SET POSITION PULL UP ON STEM TO MANUALLY OPERATE SWITCH

3/8 in.

(8) COVER SCREWS

TO RESET

PUSH STEM TO SET POSITION

15 AMP 125 VAC 10 AMP 250 VAC 3/4 HP 1-2-3 PH 125-480 VAC

1/2 in. SUPPLY PIPE WITH UNION

SWITCH 3PDT

COVER

GASKET

FRONT VIEW

COVER REMOVED

FRONT VIEW

SIDE SECTION

1/2 in. NPT FEMALE CONNECT TO SYSTEM PIPING

BOX (3) 1/2 in. CONDUIT KNOCKOUTS EACH SIDE

WIRING SCREW TERMINALS

2-8.1 Pressure Operated Switches

Pressure operated switches (Figure 2-68 and Figure 2-69) are connected to the distribution piping and utilize the pressure of the discharging carbon dioxide for activation. The carbon dioxide actuates a pressure operated stem which toggles the electrical switch. Each switch can also be operated manually by pulling up on the stem. These switches are used to enunciate alarms, to shut down ventilation and/or other electrical equipment and to turn on electrical automatic dampers or other electrical equipment. Each pressure switch must be manually reset, by pushing down on the stem to return the switch to the set position. The minimum operating pressure required is 50 PSI.

Pressure switches are available in standard (Part No. 81-486536-000) and explosion proof (Part No. 81-981332-000) models. The standard switch is three-pole, double-throw; the explosion proof switch is three-pole, single-throw.

Figure 2-68. Pressure Operated Switch

September 2013 2-64 P/N 81-CO2MAN-001

Component Descriptions

3 POLE SINGLE THROW TOGGLE SWITCH

SET POSITION

GAS

INLET

PRESSURE OPERATED EXPLOSION

PROOF

SWITCH

3 POLE

4-3/8 in.

(111 mm)

(6) COVER SCREWS

30 AMP 250 VAC 20 AMP 600 VAC 2 HP 110-600 V 3 PHASE AC

KIDDE-FENWAL INC.

400 MAIN STREET

ASHLAND, MA 01721

UNION CONNECTION

(2) 13/32 in. MOUNTING HOLES

LISTED 472M

SIGNAL SWITCH

FOR USE IN

HAZARDOUS

LOCATIONS

CLASS I, GROUP D

CAUTION: TO PREVENT

IGNITION OF HAZARDOUS

ATMOSPHERES, DISCONNECT

THE DEVICE FROM THE

SUPPLY CIRCUIT BEFORE

OPENING, KEEP ASSEMBLY

TIGHTLY CLOSED WHEN

IN OPERATION

TO RESET PUSH

STEM TO SET

POSITION

OPERATING HEAD

PRESSURE INLET - 1/2 in. NPT FEMALE

CLUTCH

9 in.

(229 mm )

STEM IN OPERATED POSITION

STEM IN SET POSITION PULL UP ON STEM TO MANUALLY OPERATE SWITCH

1 in. NPT FEMALE BOTH ENDS

FOR ELECTRIC CONNECTION.

SWITCH SUPPLIED WITH (2) 1 in. NPT PIPE PLUGS

6-5/16 in. (160 mm)

3-1/2 in. (89 mm)

4-3/16 in. (106 mm)

EXPLOSION PROOF MACHINED JOINT. DO NOT USE GASKET OR MAR SURFACES.

BODY

2-1/2 in. (64 mm)

BRACKET WITH 3/8 in. (10 mm) DIA. MOUNTING HOLE

GUARD

STEM

RING

PISTON

SPRING

1-3/8 in. (41 mm) HEX

1/2 in. NPT FEMALE

PRESSURE INLET

1-5/8 in.

(41 mm)

2-8.2 Pressure Operated Trip

P/N 81-CO2MAN-001 2-65 September 2013

Figure 2-69. Pressure Operated Switch, Explosion Proof

The pressure operated trip, Part No. 81-874290-000 (Figure 2-70), is connected to the distribution piping and utilizes carbon dioxide pressure for actuation. The carbon dioxide pressure displaces a spring-loaded piston to disengage a holding ring from the stem connected to the piston. (Typical applications of the pressure operated trip are addressed in Paragraph 3-

15.2.)

Figure 2-70. Pressure Operated Trip

Component Descriptions

OUT

4-7/16 in.

(113 mm)

1-1/4 in. - 18 NF-3 MAKE

FOR ATTACHMENT

OF CONTROL HEAD

TO OVERRIDE DELAY

OUTLET

3/4 in. NPT

FEMALE

INLET

3/4 in. NPT

FEMALE

FILTER

NAMEPLATE

PRESSURE

ACCUMULATOR

TYPICAL

METERING TUBE

(P/N 81-871071-000

SHOWN)

INLET AND OUTLET MAY BE REDUCED WITH BUSHING OR BELL REDUCER AND NIPPLE TO 1/2 in. NPT IF NECESSARY

VALV E

17-7/8 IN. (454 mm)

3-9/16 in.

(90 mm)

DIA.

2-8.3 Pneumatic Discharge Delay

This pneumatic discharge delay (Figure 2-71 through Figure 2-73) uses CO or N

actuation pressure to provide a pneumatic (automatic mechanical) means to delay the

discharge for a pre-determined period. The pneumatic discharge delay consists of a

system pressure

metering tube, a cylinder, and a differential pressure operated valve with a control port for attaching a compatible control head. This assembly is installed downstream of pressure operated equipment, but upstream of the nozzle, to allow alarms to sound, and equipment and ventilation to shut down prior to the carbon-dioxide discharge.

Discharge delay assemblies are available with non-adjustable, factory pre-set delay periods. Attachment of a compatible control head allows the delay period to be bypassed. Without a control head the delay period cannot be bypassed.

Consult NFPA 12 (latest edition) for guidance selecting appropriate control heads.

Table 2-32. Pneumatic Discharge Delay Part Numbers

Part Number Description

81-871071-000 CO2 Discharge Delay, 30 Second (Not FM Approved) 81-897636-000 CO2 Discharge Delay, 60 Second (Not FM Approved) 81-871072-001 N2 Discharge Delay, 30 Second (For Use w/108-cuin N2 Cylinder Only) 81-871072-002 N2 Discharge Delay, 60 Second (For Use w/108-cuin N2 Cylinder Only)

Figure 2-71. Pneumatic Discharge Delay

September 2013 2-66 P/N 81-CO2MAN-001

Component Descriptions

ACCUMULATOR

PRESSURE

CONNECTION FOR

CONTROL HEAD

PILOT CHECK

OUTLET CHAMBER

OUTLET

BALL CHECK

PISTON

PISTON CHAMBER

PRESSURE ACCUMULATOR

MAIN CHECK

INLET CHAMBER

CONTROL HEAD

PILOT CHECK

BALL CHECK

OUTLET CHAMBER

PISTON

PISTON CHAMBER

OUTLET

MAIN CHECK

INLET

INLET CHAMBER

FILTER

METERING TUBE

Figure 2-72. Pneumatic Discharge Delay, Detail

P/N 81-CO2MAN-001 2-67 September 2013

Component Descriptions

9/16

3-9/16 in.

(90 mm)

DIA.

PRESSURE OPERATED DISCHARGE DELAY ASSEMBLY

INSTALL UNIT IN ANY POSITION

BELOW HORIZONTAL AS SHOWN

PREFERRED

1-7/16 in.

(37 mm)

3 in.

(76 mm)

3/4 in. TAPERED PIPE THREAD (BUSHED 1/2 in. AS REQUIRED)

ALLOW SUITABLE CLEARANCE FOR MANUAL OPERATION OF LOCKING PIN AND CONTROL HEAD LEVER

LOCKING PIN

AND SEAL RING

LOCAL CONTROL LEVER (OPERATED POSITION)

LOCAL CONTROL HEAD

SWIVEL NUT TO PERMIT CONTROL TO BE TURNED AND SECURED IN POSITION DESIRED

OUTLET

2-1/8 in. (54 mm)

INLET

PIPE

(BY INSTALLER)

15-1/8 in.

(384 mm)

22-9/16 in.

(573 mm)

5-11/16 in.

(144 mm)

1-3/4 in.

(44 mm)

TO OPEN

CLOSED

2-9/16 in. R.

(64 mm)

TO OPEN

OUT

Figure 2-73. Pneumatic Discharge Delay with Manual Control Head

2-8.4 Pressure Operated Siren

The pressure operated sirens provide a mechanical means to generate an audible alarm. The flow of carbon dioxide or nitrogen into the siren spins a rotor and creates a high pitch and high decibel sound. The audible alarm warns personnel of an impending CO2 discharge and the need to immediately evacuate the protected area prior to the discharge. In order to provide a predischarge warning, the siren supply line shall be installed upstream of the discharge delay.

September 2013 2-68 P/N 81-CO2MAN-001

Kidde Engineered Carbon Dioxide User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Fire Suppression Systems

General Information

1-1 INTRODUCTION

1-2 CLASSIFICATION OF FIRE

1-3 GENERAL CHARACTERISTICS OF THE SYSTEM

1-4 SYSTEM DESCRIPTION

1-5 TYPE OF SUPPRESSION SYSTEM

1-5.1 Total Flooding

1-5.2 Local Application

1-6 GENERAL SYSTEM REQUIREMENTS

1-6.1 Safeguards

1-6.1.1 ADEQUATE PATH OF EGRESS

1-6.1.2 WARNING SIGNS AND PERSONNEL EDUCATION

1-6.1.3 PRE-DISCHARGE TIME DELAYS AND ALARMS

1-6.1.4 STOP VALVES AND LOCKOUT VALVES

1-6.1.5 POST-RELEASE WARNINGS AND PROCEDURES

1-6.2 Storage

1-6.3 Discharge Characteristics

1-6.4 Actuation Methods

1-7 APPLICATIONS

1-8 EXTINGUISHING PROPERTIES OF CARBON DIOXIDE

1-9 PHYSICAL PROPERTIES OF CARBON DIOXIDE

1-10 CLEAN-UP

Component Descriptions

2-1 FIRE SUPPRESSION SYSTEM COMPONENTS

2-2.1 Cylinder and Valve Assemblies

2-2.1.1 VALVES

2-2.1.2 CYLINDER FILLING

2-2.2 Discharge Heads

2-2.2.1 PLAIN-NUT DISCHARGE HEAD

2-2.2.2 GROOVED-NUT DISCHARGE HEAD

2-2.3 Flexible Hoses

2-2.4 Swivel Adapter

2-2.5 Manifold “Y” Fitting

2-2.6 Cylinder Mounting Hardware

2-2.6.1 SINGLE OR DOUBLE CYLINDER ARRANGEMENTS

2-2.6.1.1 Single Cylinder Straps.

2-2.6.1.2 Double Cylinder Straps

2-2.6.2 MULTIPLE CYLINDER ARRANGEMENTS

2-2.6.2.1 Cylinder Rack and Framing, Example Arrangement

2-3 ACTUATION COMPONENTS

2-3.1 Lever-Operated Control Head

2-3.2 Cable-Operated Control Head

2-3.3 Manual Control Equipm ent

2-3.3.1 MECHANICAL PULL BOX

2-3.3.2 MECHANICAL PULL BOX Z-BRACKET

2-3.3.3 CORNER PULLEYS

2-3.3.4 TEE PULLEY

2-3.3.5 ADAPTER

2-3.3.6 CABLE HOUSING

2-3.3.7 DUAL PULL MECHANISM

2-3.3.8 DUAL PULL EQUALIZER

2-3.3.9 1/16-INCH PULL CABLE

2-3.4 Electric Control Heads

2-3.4.1 ELECTRIC CONTROL HEADS

2-3.4.2 ELECTRIC AND CABLE-OPERATED CONTROL HEADS

2-3.4.3 EXPLOSION PROOF ELECTRIC AND CABLE OPERATED CONTROL HEADS

2-3.5 Pneumatic Control Heads

2-3.5.1 TANDEM PNEUMATIC CONTROL HEAD

2-3.6 Components for Pneumatic Actuation Systems

2-3.6.1 PNEUMATIC CABLE HOUSING

2-3.6.2 HEAT ACTUATED DETECTOR

2-3.6.3 HEAT COLLECTOR

2-3.6.4 VENTS

2-3.6.5 1/8-INCH COPPER TUBING

2-3.6.5.1 Fittings

2-3.6.5.2 Rubber Grommet

2-3.6.6 3/16-INCH COPPER TUBING

2-3.7 Pressure Operated Control Heads

2-3.7.1 PRESSURE OPERATED CONTROL HEAD

2-3.7.2 LEVER AND PRESSURE OPERATED CONTROL HEAD

2-3.7.3 STACKABLE PRESSURE OPERATED CONTROL HEAD

2-3.8 Components for Pressure Operated Actuation Systems

2-3.8.1 NITROGEN PILOT CYLINDER AND BRACKET

2-3.8.1.1 Nitrogen Pilot Cylinder, 108 cu. in.

2-3.8.1.2 Nitrogen Pilot Cylinder, 1040 cu. in.