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Kidde Fire Systems Natura Manual

Inert gas system
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This file contains the following:
Title
Manuals
Kidde Fire Systems ECS-500™ psi Fire Suppression System with 3M™ Novec™ 1230 Fire
Protection Fluid
Addenda
Kidde Fire Systems Errata Addendum for Natura™ Inert Gas System Design,
Installation, Operation, and Maintenance Manual with FM Approvals and UL Listing,
Rev AC
TPED Approved Cylinder Addendum for Kidde Fire Systems Natura™ Inert Gas System
Design, Installation, Operation, and Maintenance Manual with FM Approvals and
UL Listing, Rev AC
2-Way NPT and Grooved Selector and Lockout Valve Addendum for Kidde Fire Systems
Clean Agent Systems
October 2023
Part Number
Rev
06-237619-001
AC
06-237619-002
AA
06-237619-003
AA
06-237873-001
AA

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Summary of Contents for Kidde Fire Systems Natura

  • Page 1 This file contains the following: Title Part Number Manuals Kidde Fire Systems ECS-500™ psi Fire Suppression System with 3M™ Novec™ 1230 Fire 06-237619-001 Protection Fluid Addenda Kidde Fire Systems Errata Addendum for Natura™ Inert Gas System Design, 06-237619-002 Installation, Operation, and Maintenance Manual with FM Approvals and UL Listing, Rev AC TPED Approved Cylinder Addendum for Kidde Fire Systems Natura™...
  • Page 3 P/N 06-237619-001 October 2021, Rev. AC Kidde Fire Systems Natura™ Inert Gas System Design, Installation, Operation, and Maintenance Manual with FM Approvals and UL Listing EXPORT INFORMATION (USA) Jurisdiction: EAR US ECCN: EAR99 This document contains technical data subject to the EAR...
  • Page 5 FOREWORD ™ This manual is written for those who design, install, operate, or maintain the Kidde Fire Systems Natura Inert Gas System (Natura IGS system) using IG-100, IG-541 IG-55, or IG-01 (herein refer to collectively ® as the “agent”) with FM Approvals and UL Listing. For Kidde Fire Systems Argonite Engineered Fire Systems with UL Listing (Not FM Approvals), see DIOM P/N: 06-236432-001.

  • Page 6: Safety Data Sheets

    Fire suppression system service personnel must be trained in the proper handling, installation and service of Natura IGS system equipment and follow the instructions used in this manual and in the Safety Bulletin and cylinder nameplate. Kidde Fire Systems has provided warnings and cautions at appropriate locations throughout the text of this manual.

  • Page 7: Safe Cylinder Handling Procedures

    Before handling Natura IGS system products, all personnel must be trained in the safe handling of the containers as well as in the proper procedures for installation, removal, filling, and connection of other critical devices, such as flex hoses;...

  • Page 8: Removal From Service

    If the safety cap (P/N: 38-400011-001) is missing obtain a new safety WARNING cap from Kidde Fire Systems. Attach the transport cap to the cylinder/valve assembly. Remove cylinder from bracketing.

  • Page 9: Table Of Contents

    TABLE OF CONTENTS Foreword ....................... i Safety Summary..................... ii Safety First ....................ii Safe Cylinder Handling Procedures ..............iii Table of Contents.................... v List of Figures ....................xv List of Tables....................xix CHAPTER 1 GENERAL INFORMATION Introduction ..................1-1 1-1.1 Use ....................

  • Page 10: Table Of Contents

    References..................1-23 1-14 Approvals ................... 1-23 CHAPTER 2 COMPONENT DESCRIPTIONS Introduction ..................2-1 Functional Description ................2-1 Natura IGS System Agent Cylinders and Release Units ......2-2 2-3.1 Cylinder and Valve Assemblies............... 2-2 2-3.1.1 Spare Parts for Cylinders ..............2-3 2-3.1.2 Cylinder Valves..................
  • Page 11 TABLE OF CONTENTS (CONT.) 2-8.3.3.1 Supervisory Pressure Switch Differentiation ..........2-29 2-8.3.3.2 Plain-nut Discharge Head ..............2-30 2-8.4 Electric Control Heads Kit, P/N 85-890181-200 ........2-31 2-8.4.1 Lever Operated Control Head (P/N WK-870652-000) ........ 2-32 2-8.4.1.1 Lever/Pressure Operated Control Head, P/N 82-878751-000 ...... 2-33 2-8.4.2 Control Head Monitor with Hazloc Assembly, P/N 85-100000-100 ....
  • Page 12 TABLE OF CONTENTS (CONT.) 3-10.8 Atmospheric Correction Factors.............. 3-16 3-11 Cylinder Content.................. 3-16 3-12 Cylinder Bank Installation ..............3-17 3-12.1 Location ..................... 3-17 3-12.2 Typical Foot Print ................. 3-17 3-13 Typical Floor Load ................3-18 3-14 Vibrations ................... 3-18 3-15 Agent Cylinder Release Constraints ............
  • Page 13 TABLE OF CONTENTS (CONT.) 4-6.5 Securing Multi-Row Cylinders..............4-15 4-6.6 Positioning Cylinders ................4-16 4-6.6.1 Installing Back-Plate Manifold for Selector Valve Systems ......4-17 4-6.7 Installing Secondary Cylinder Gauge Assembly......... 4-18 4-6.8 Installing Release Units................. 4-19 4-6.8.1 Aligning the Release Unit after Pressurization........... 4-20 4-6.9 Locations for Leak Testing the Valve and Cylinder........
  • Page 14 6-1.1 Agent Storage Cylinders............... 6-1 Maintenance Procedures ............... 6-2 Preventative Maintenance Schedule............6-2 Weekly ....................6-4 6-4.1 Check Natura IGS System Cylinder Pressure..........6-4 6-4.2 Check Nitrogen Pilot Cylinder Pressure ............ 6-4 6-4.3 Hazard and Enclosure Inspection............6-4 6-4.4 Pipework and Controls Inspection............6-4 Monthly ....................
  • Page 15 Inspect Flexible Hoses ................6-10 6-6.9 Verify Odorizer Assembly ..............6-10 Annual Inspection Procedure ..............6-10 6-7.1 Check Natura IGS System Cylinder Pressure Gauges ........ 6-10 Inspection Procedures-2 Year ..............6-10 6-8.1 Distribution Piping Blow Out ..............6-10 Inspection Procedures- 5 year (CFR)............6-11 6-9.1...
  • Page 16 A-3.1 Designation of Batches ................. A-2 Charging Equipment................A-2 A-4.1 Cylinder and Valve Assemblies............... A-2 A-4.2 Natura IGS Cylinder Valve, P/N 38-400000-001 ........A-5 A-4.3 Fill Adapters, P/N 38-406000-001 ............A-6 Filling Process ..................A-7 A-5.1 Pre-filling Inspection ................A-7 A-5.1.1...
  • Page 17 TABLE OF CONTENTS (CONT.) A-5.3.1 Filling by Pressure ................A-9 A-5.3.1.1 Partial Pressure Fill Information ............. A-10 A-5.3.2 Filling by Weight .................. A-11 A-5.3.2.1 Weight Relations for each Agent in kg/l ........... A-11 A-5.3.3 Fill Tolerance per Agent ................ A-11 A-5.3.4 Principle of Filling - Flow Path ..............
  • Page 18 THIS PAGE INTENTIONALLY LEFT BLANK. October 2021 06-237619-001...

  • Page 19: List Of Figures

    IG-01 Pressure vs Temperature (°C) for 300 bar System ......... 1-18 Typical Natura IGS System .................. 2-1 Typical Cylinder Assembly ..................2-2 Natura IGS System Agent and Cylinder Part Number Breakdown ....... 2-3 Valve General Arrangement, P/N 38-400000-001 ............ 2-4 Release Unit....................... 2-5 Secondary Cylinder Gauge Assembly ..............
  • Page 20 Distance Pipe ..................... 2-43 2-14 Installed Distance Pipe ..................2-43 Hold Time Model....................3-14 Typical Footprint of a Natura IGS System............... 3-17 Typical Distribution Manifold Design ..............3-19 Back-Plate Manifold Arrangement................3-20 Nozzle Placement and Coverage ................3-22 Nozzle Orientation ....................3-22 Single Area Cylinder Bank Arrangement..............
  • Page 21 LIST OF FIGURES (CONT.) Figure Name Page Number 4-10 Typical Primary Cylinder/Valve Assembly (Rear View) ..........4-12 4-11 Typical Secondary Cylinder/Valve Assembly (Rear View) .......... 4-13 4-12 Manifold Safety Device Installation Example ............4-14 4-13 Cylinder Valve Gauge Port..................4-16 4-14 Selector Valve Installation..................
  • Page 22 Plain Nut Discharge Head..................7-9 Natura IGS System Agent and Cylinder Part Number Breakdown ....... 8-2 Factory Filled Natura IGS System Agent and Cylinder Part Number Breakdown ... A-3 Natura IGS System Cylinder and Valve Assembly ............ A-5 Natura IGS System Cylinder and Valve Assembly Component Locations ..... A-5 Fill Adapter, P/N 38-406000-001 for Natura IGS System Cylinder Valve .....
  • Page 23 Table Name Page Number Fire Classifications ....................1-2 Egress Time Limits for Spaces Flooded with a Natura IGS Agent........ 1-5 Natura IGS System Agents................... 1-8 Safety Factor ..................... 1-8 Agent Pressure Verse Temperature Formulas ............1-19 Dimensions, Cylinder and Valve Assemblies............2-3 Filled Cylinder Weights ..................
  • Page 24 4-13 Minimum Hose Bend Radius ................. 4-23 4-14 Allowable Pipe Grade and Size for Use with Natura IGS System Manifold to Selector valves for Sch 40 THDF Per FSSA ............4-25 4-15 Allowable Pipe Grade and Size for Use with Natura IGS System Manifold to Selector valves for Sch.
  • Page 25 Agent Pressure Verse Temperature Formulas ............A-1 Natura IGS System Factory Filled Cylinder Part Numbers.......... A-3 Natura IGS System First Fill Eligible Cylinder Part Numbers ........A-4 Natura IGS System Fill Adapter Part Numbers............A-6 Agent Partial Pressure (in bar) required to Fill Cylinders at 15 °C....... A-10 IG-55 Partial Pressure (in bar) required to Fill Cylinders at 15 °C...
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  • Page 27: Chapter 1 General Information

    These agents are approved by the EPA, NFPA, and ISO for use in fire suppression systems. Use Natura IGS systems as a total flooding system for protection against hazards that are enclosed or for protecting equipment that includes an enclosure within itself that will contain the agent.

  • Page 28: 1-1.3 Fire Class Table

    Technical Limitation on Size of Agent Cylinder Bank There are no limits to the number of agent cylinders that can be used in an Natura IGS system. However, the size of the system is limited by the space available for storage of the agent cylinders.

  • Page 29: Fire Extinguishment Methods

    SAFETY The agents used in Natura IGS systems do not decompose when extinguishing a fire. As such, the agents do not produce toxic or corrosive decomposition products as a by-product of the combustion mechanism. However, heat and breakdown products from the fire itself can still be substantial and could make the area unfit for human occupancy until the enclosure is properly ventilated.

  • Page 30: 1-3.2 Agent Concentrations And Safety

    The Natura IGS agents are used at relatively high concentrations to extinguish fires, typically in the range of 40 to 50% agent in air, or more. At a Natura IGS agent concentration of 45%, the residual oxygen concentration is 11.5%, compared with 21% in normal air. The principal health risk from exposure to atmospheres having such low oxygen concentrations is "hypoxia,"...

  • Page 31: Clarifying "Sea Level Equivalent Of Oxygen

    1-3.2.1 Clarifying "Sea Level Equivalent of Oxygen" The allowed exposure limit to air diluted with Natura IGS agents relates to the residual oxygen concentration. At sea level the atmospheric pressure is 14.7 psi (101,325 Pa). The sea level equivalent of oxygen is the "partial pressure" of oxygen in air when the atmospheric pressure is 14.7 psi.

  • Page 32: System Description

    1-4.1 Central Cylinder Bank When multiple cylinders are required, Natura IGS cylinders can be set up in central cylinder banks with sufficient total capacity to store the required quantity of selected inert agent for the largest space to be protected. The cylinders in the bank are each connected to a discharge manifold or series of manifolds via flexible high-pressure discharge hoses.

  • Page 33: 1-4.2 Selector Valve System

    Other countries/authorities may have different requirements than those mentioned above. 1-4.4 Pressure Monitoring Natura IGS systems offer instrumentation for optional remote and local pressure monitoring of the content within the cylinders: • Local monitoring by visual inspection of a pressure gauge on each cylinder •...

  • Page 34: Extinguishing Agent

    0.04%, Nitrogen constitutes approximately 78%, and Argon approximately 0.9% of the atmosphere. As a result, the global warming effect of the Natura IGS is zero, the Ozone depleting factor is zero, and the atmospheric lifetime is not a consideration as the gases are benign to the environment.

  • Page 35: 1-5.2 Ig-100 (Nitrogen)

    General Information 1-5.2 IG-100 (Nitrogen) Natura IGS systems using IG-100 are fixed fire extinguishing systems that use the inert gas Nitrogen, UN number 1066. The purity of the Nitrogen shall be as follows: • Nitrogen greater than or equal to 99.7%.
  • Page 36 General Information Figure 1-3. IG-100 Pressure vs Temperature (°F) for 300 bar System Figure 1-4. IG-100 Pressure vs Temperature (°C) for 300 bar System October 2021 1-10 06-237619-001...

  • Page 37: Nitrogen, Argon, And Carbon Dioxide)

    General Information 1-5.3 IG-541 (Nitrogen, Argon, and Carbon Dioxide) Natura IGS systems using IG-541 are fixed fire extinguishing systems that use an inert gas- eous mixture of 52% Nitrogen, 40% Argon, and 8% Carbon Dioxide (IG-541), UN number 1956. The tolerance of IG-541 in air is as follows: •...
  • Page 38 General Information Figure 1-6. IG-541 Pressure vs Temperature (°C) for 200 bar System Figure 1-7. IG-541 Pressure vs Temperature (°F) for 300 bar System October 2021 1-12 06-237619-001...
  • Page 39 General Information Figure 1-8. IG-541 Pressure vs Temperature (°C) for 300 bar System 06-237619-001 1-13 October 2021...

  • Page 40: 1-5.4 Ig-55 (Nitrogen And Argon)

    General Information 1-5.4 IG-55 (Nitrogen and Argon) Natura IGS systems using IG-55 are fixed fire extinguishing systems that use an inert, gaseous ® mixture of 50% Nitrogen and 50% Argon known as Argonite , UN number of 1956. The specification for IG-55 is an Argon/Nitrogen 50%/50% ratio by volume. Tolerance of mixture in air is as follows: •...
  • Page 41 General Information Figure 1-10. IG-55 Pressure vs Temperature (°C) for 200 bar System Figure 1-11. IG-55 Pressure vs Temperature (°F) for 300 bar System 06-237619-001 1-15 October 2021...
  • Page 42 General Information Figure 1-12. IG-55 Pressure vs Temperature (°C) for 300 bar System October 2021 1-16 06-237619-001...

  • Page 43: Argon)

    1-5.5 IG-01 Argon) Natura IGS systems using IG-01 are fixed fire extinguishing systems that use the inert gas Ar- gon, UN number 1006. The purity of the Argon shall be as follows: • Argon greater than or equal to 99.99% •...
  • Page 44 General Information Figure 1-15. IG-01 Pressure vs Temperature (°F) for 300 bar System Figure 1-16. IG-01 Pressure vs Temperature (°C) for 300 bar System October 2021 1-18 06-237619-001...

  • Page 45: 1-5.6 Agent Pressure Verse Temperature Formulas

    1-5.7 Operating Temperature Range Limitations Natura IGS systems have an operating temperature range of -4° to 130°F (-20° to 54°C). During discharge the temperature within the protected enclosure will drop approx. 9-18 °F (5 – 10 °C). The temperature will rise again after approx. 2 – 3 min.

  • Page 46: Noise Consideration

    General Information NOISE CONSIDERATION Hard disc drives may fail during release of a Natura IGS system due to acoustic noise issues. At specific frequencies and decibel (dB) levels, vibrations transfer through the flexible stainless steel cover of a hard drive case transmitting vibration into the inner workings of the drive, causing the read/write element to misalign and fail.

  • Page 47: Release Modes

    General Information RELEASE MODES The system is capable of electric and manual actuation and can be released by one or more of the following methods: 1-8.1 Automatic Release The fire detection and control panel will determine that a detector has entered the alarm state. In response to this, the panel will initiate a visual or audible alarm.

  • Page 48: Pressure Relief/Vent

    1-12 RETROFITABILITY Retrofitting a Natura IGS system into an existing piping network shall only be done after close examination of the installed pipe work, including verification of installed pipe and fittings material by hydraulic calculation, visual check of surface treatment condition, corrosion,...

  • Page 49: References

    IG-01: ISO 14520 part 12 / EN 15004 part 7 1-14 APPROVALS The approval(s) required for installation of a Natura IGS system may vary from country to country. Local fire authorities should always be contacted for their input. A number of international as well as local authorities around the world have approved the use of Natura IGS systems for fixed fire protection systems.
  • Page 50 General Information THIS PAGE INTENTIONALLY LEFT BLANK. October 2021 1-24 06-237619-001...

  • Page 51: Chapter 2 Component Descriptions

    01 inert-gas agent (herein refer to collectively as the “agent”). FUNCTIONAL DESCRIPTION The agent is held in the Natura IGS system storage cylinder by a discharge valve. When the discharge valve is actuated, the agent discharges through the valve outlet and is directed through the distribution piping to the nozzles.

  • Page 52: Natura Igs System Agent Cylinders And Release Units

    Each cylinder, manufactured in accordance with TPED and/or UN (DOT Recognized) ISO 9809- 2, is fitted with a pressure operated Natura IGS system high pressure cylinder valve. Standard cylinders are available in volumes of 80 liters filled with agent at pressures of 200 bar or 300 bar at a filling temperature of 15°C and 140 liters filled with agent at a pressure of...

  • Page 53: 2-3.1.1 Spare Parts For Cylinders

    -4° to 130°F (-20° to 54°C). The agent information found in Section 1-5 shows the cylinder temperature-pressure relationship formulas based on fill density. The Kidde Fire Systems Natura IGS Flow Calculation Program is designed for a 68°F (20°C) cylinder operating/storage temperature.

  • Page 54: 2-3.1.2 Cylinder Valves

    2-3.1.2 Cylinder Valves Natura IGS system uses a pneumatically operated, high pressure cylinder valve, designed for an operating pressure of up to 366 bar (tested and CE marked according to EN 12094-4, tested and PI marked according to ATR D 2/11:2012 (TPED)).

  • Page 55: 2-3.2 Release Units

    Note: Release unit solenoids must be continuously powered during system discharge. Solenoid Specifications • Operating Voltage: 24 VDC 18W • Current Draw: 0.75 Amps Figure 2-5. Release Unit Table 2-4. Natura IGS System Release Unit Part Numbers Pressure Part Number Operation Contact Current Draw Rating...

  • Page 56: 2-3.3 Secondary Cylinder Gauge Assemblies

    (2320 psi) for 200 bar (2900 psi) cylinders and 240 bar (3480 psi) for 300 bar (4350 psi) cylinders. Figure 2-6. Secondary Cylinder Gauge Assembly Table 2-5. Natura IGS System Secondary Cylinder Gauge Part Numbers Pressure Part Number Contact...

  • Page 57: 2-3.4 Actuation Hoses

    Component Descriptions 2-3.4 Actuation Hoses The Actuation Hoses are used in multiple cylinder systems. Pressure is directed to the valve on each agent cylinder using an actuation hose (see Figure 2-7, Figure 2-8, and Table 2-6). These hoses include Quick Connect fittings for ease of installation and maintenance. The groove on the Quick Connect provides additional grip surface when the connector is installed into the mated connection.

  • Page 58: 2-3.5 Pilot Line Bleed Valve

    Component Descriptions 2-3.5 Pilot Line Bleed Valve Install a Pilot Line Bleed Valve (P/N in the unused actuation hose connection in 38-400007-001) the last cylinder of a cylinder bank, even if the bank only contains one cylinder. The pilot line bleed valve prevents a possible gradual pressure build-up in the pilot line should the solenoid release unit develop a leak, thus preventing an unintended system discharge.
  • Page 59 Component Descriptions Table 2-8. Natura IGS System Quick Connect Cable Part Numbers Part Number Description 38-400005-100 L Plug x 2 Cable, Dual Core (0.34mm x 300mm) x Quick Connects (Male & Female) 38-400005-102 Gauge Signal Line - Quick Connect (MALE) Connector with 3m Fly lead (Dual Core Cable) 38-400005-103 Quick Connect (Male) x Dual Core (0.34mm x 1000mm) Fly-Lead...

  • Page 60: Discharge Accessories

    Component Descriptions DISCHARGE ACCESSORIES 2-4.1 Discharge Hoses Use the discharge hoses to route the agent from the storage cylinders to the manifold piping (see Figure 2-16, and Table 2-9). The hose is connected to the discharge outlet of the agent cylinder valve and terminates at a check valve on the discharge manifold or leads to the system piping where allowed by the AHJ.

  • Page 61: 2-4.2 3/4" Manifold Check Valves

    41.6 mm A/C 1" BSPT to BS21 3/4" BSPP to P to BS2779 Figure 2-17. Manifold Check Valves Table 2-10. Natura IGS System Manifold Check Valve Part Number Description 38-400002-002 3/4” BSP Manifold Check Valve 06-237619-001 2-11 October 2021...

  • Page 62: 2-4.3 Manifold Safety Device

    OF SOCKET OR ELBOW 1" BSPT DIRECTION OF RELIEF 3/4" NPT Connect this Side to System Piping Figure 2-18. Manifold Safety Device Table 2-11. Natura IGS System Discharge Accessories Part Numbers Part Number Description 38-400006-002 BSP Manifold Safety Device 2-4.4 Discharge Indicator (Optional) The discharge indicator (P/N 81-967082-000), may be installed in the discharge piping to vi- sually indicate a system discharge.

  • Page 63: 2-4.5 Pressure Operated Switches

    Component Descriptions 2-4.5 Pressure Operated Switches Pressure operated switches (Figure 2-20 and Figure 2-21) are connected to the distribution piping and use the pressure of the discharging agent for activation. The agent actuates a pressure operated stem which toggles the electrical switch. Each switch can also be operated manually by pulling up on the stem.

  • Page 64: 2-4.6 Pressure Operated Release

    Component Descriptions STEM IN OPERATED POSITION 4-3/8 in. 1 in. NPT FEMALE BOTH ENDS (111 mm) STEM IN SET POSITION - FOR ELECTRIC CONNECTION. PULL UP ON STEM TO SWITCH SUPPLIED WITH MANUALLY OPERATE SWITCH (2) 1 in. NPT PIPE PLUGS LISTED 472M SIGNAL SWITCH POSITION...

  • Page 65: Main-To-Reserve Transfer Switch, P/N 85-802398-001

    Component Descriptions 2-4.7 Main-to-Reserve Transfer Switch, P/N 85-802398-001 The Main-to-Reserve Switch is installed on systems having main and reserve cylinders. Placing the switch in either the MAIN or RESERVE position provides uninterrupted fire protection during system maintenance or in the event of a system discharge (see Figure 2-23). Switch Rating: 30 Amps at 120 VAC NAMEPLATE CONDULET...

  • Page 66: 2-4.8 Odorizer Assembly

    Component Descriptions 2-4.8 Odorizer Assembly The odorizer assembly, P/N 81-897600-001, injects a scent of wintergreen into the agent during a discharge. Upon discharge, the agent pressure ruptures a burst disc to release the scent of wintergreen. This scent warns personnel in the vicinity of the area protected by the fire suppression system that agent is present.

  • Page 67: 2-4.9 Main And Reserve Nameplates

    2-4.10 Caution Signs There are two warning signs available for use with Natura IGS systems, a caution sign used for entrances to the protected area (P/N 85-909300-001), and one for the exits from the protected area (P/N 85-909300-002). Additional signs to assist with BS Compliance are also available.

  • Page 68: Selector Valves

    Selector valves are used to distribute agent where multiple spaces are protected from the same or multiple banks of cylinders. All Natura IGS system selector valves are 2-way ball valves with full bore. They operate pneumatically, using pressure tapped from the manifold and routed through a pressure regulator on the back-plate manifold.

  • Page 69: 2-5.1 Back-Plate Manifold

    If using a pre-built manifold as supplied from Kidde Fire Systems, including an extra port on the manifold can simplify this connection. The ¾ inch check must be removed to use this extra port.

  • Page 70: 2-5.1.2 Pressure Regulator

    Solenoid Specifications: – Operating Voltage: 24 VDC 10W – Current Draw: 0.42 Amps Figure 2-31. Back-Plate Manifold Spare Solenoid Table 2-20. Natura IGS System Back-Plate Manifold Spare Solenoid Part Numbers Part Number Description 38-350800-001 Back-Plate Manifold Spare Solenoid October 2021...

  • Page 71: Lockout Valves

    Component Descriptions LOCKOUT VALVES Note: Lockout valves are required to be used in conjunction with use of a time delay. A lockout valve is a manually operated valve installed between the agent manifold and the discharge pipe to the protected area. Lockout valves are normally open but, can be locked in the closed position when maintenance is being carried out to prevent agent from discharging into the protected area for the safety of the personnel.
  • Page 72 238.7 127.5 38.3 4” 38-409830-010 Ø 100 696.5 123.5 151.5 Table 2-25. Natura IGS System Lockout Valve Part Numbers Part Number Description 38-409830-005 Valve, 1" NPT Lockout (Isolation) 38-409830-007 Valve, 2" NPT Lockout (Isolation) 38-409830-009 Valve, 3" NPT Lockout (Isolation) 38-409830-010 Valve, 4"...

  • Page 73: Discharge Nozzles

    Component Descriptions DISCHARGE NOZZLES Only listed Natura IGS system nozzles are to be used on Kidde Fire Systems Natura Inert Gas System. Failure to comply with this WARNING can result in unpredictable WARNING agent distribution. Note: For the full list of NPT nozzles with corresponding orifice areas, see Table 8-11 and Table 8-13.

  • Page 74: Nitrogen Pilot System And Pressure Driven Accessories

    Component Descriptions NITROGEN PILOT SYSTEM AND PRESSURE DRIVEN ACCESSORIES A nitrogen pilot cylinder supplies pressure to run nitrogen powered discharge delays or pres- sure operated sirens. Note: These devices may be required per NFPA 2001, latest edition. Discharge Delays and Sirens must be driven by a dedicated nitrogen pilot cylinder.

  • Page 75: Pressure Operated Siren

    Component Descriptions 2-8.2 Pressure Operated Siren The pressure operated siren (P/N 90-981574-001) provides a mechanical means to generate an audible alarm. The flow of nitrogen into the siren spins a rotor and creates a high pitch and high decibel sound. The audible alarm warns personnel of an impending agent discharge and the need to immediately evacuate the protected area prior to the discharge.

  • Page 76: 2-8.3 Nitrogen Pilot Cylinders

    2-8.3 Nitrogen Pilot Cylinders Two different sized cylinder capacities are provided for use with Natura IGS systems. Each cyl- inder is of steel material and designed in accordance with USDOT and TC requirements. Each cylinder is factory pressurized to 1800-psig at 70°F and fitted with a pressure gauge and pres- sure relief device.

  • Page 77: 2-8.3.2 1040 Cu. In. Nitrogen Pilot Cylinder

    The Nitrogen driver supervisory pressure switch is intended to detect a drop in pressure in the Kidde Fire Systems ADS™ Nitrogen Driver cylinders (see Figure 2-49). A new port has been introduced on the I-Valve with a Schrader valve to facilitate the installation of the supervisory pressure switch.
  • Page 78 Component Descriptions Note: When the Nitrogen driver supervisory pressure switch (P/N 85-111540-001 or P/N 85-111540-100) is connected to a supervised control panel circuit, and the switch is wired N.C. under pressure, it is not possible to distinguish between a wiring fault and a loss of cylinder pressure.

  • Page 79: 2-8.3.3.1 Supervisory Pressure Switch Differentiation

    Component Descriptions 2-8.3.3.1 Supervisory Pressure Switch Differentiation Kidde Fire Systems offers supervisory pressure switches for multiple products and product lines. When ordering and installing supervisory pressure switches, please select the appropriate switch. The switches have a colored band to help differentiate them.

  • Page 80: 2-8.3.3.2 Plain-Nut Discharge Head

    Component Descriptions 2-8.3.3.2 Plain-nut Discharge Head The plain-nut discharge head (P/N WK-872450-000) discharges the contents of the 1040 cu. in. nitrogen pilot cylinder upon activation of its associated control head. 3-13/16 in. (97 mm) PISTON BALL RETAINER STOP CHECK BALL CHECK SPRING 3-15/16 in.

  • Page 81: Electric Control Heads Kit, P/N 85-890181-200

    Note: The Electric Control Head cannot be used to activate an agent cylinder. Only the release unit can accomplish this task. The Electric Control Head kit includes the following items: Table 2-32. Natura IGS System Electric Control Head Kit Contents Part Number Description...

  • Page 82: Lever Operated Control Head (P/N Wk-870652-000)

    Component Descriptions 2-8.4.1 Lever Operated Control Head (P/N WK-870652-000) Use the lever operated control head on top of the time delay to bypass the delay. The lever operated control head is equipped with an operating lever that is secured in the closed position by a safety pull pin.

  • Page 83: 2-8.4.1.1 Lever/Pressure Operated Control Head, P/N 82-878751-000

    Component Descriptions 2-8.4.1.1 Lever/Pressure Operated Control Head, P/N 82-878751-000 The Lever/Pressure Operated Control head allows manual or pressure actuation (see Figure 2-44) of a nitrogen pilot cylinder. The lever/pressure operated control head is self-vent- ing to prevent accidental system discharge. Use the lever/pressure operated control head on the nitrogen pilot cylinders used for pneumat- ic sirens.

  • Page 84: Control Head Monitor With Hazloc Assembly, P/N 85-100000-100

    Component Descriptions 2-8.4.2 Control Head Monitor with Hazloc Assembly, P/N 85-100000-100 Note: HazLoc rating is FM Approved only. To comply with NFPA 2001, latest edition, all electric control heads must be under placement supervision such that, if an electric actuator is removed, an audible and visual signal will be initiated at the control panel indicating system impairment.

  • Page 85: 2-8.4.2.1 Standards For Us Hazloc Approval

    Component Descriptions 2-8.4.2.1 Standards for US Hazloc Approval Number Issue Date FM 3600 2011 FM 3615 2006 FM 3616 2011 FM 3810 2005 ANSI/ISA 60079-0 2013 ANSI/ISA 60079-1 2013 ANSI/ISA 60079-31 2013 US Hazardous Location Markings: • Class I, Div 1, Groups CD •...

  • Page 86: Fill Adapter

    Do not install a tapered threaded fitting such as 1/4 in. BSPT or 1/4 in. NPT into this port. The adapter must be 1/4 in. BSPP male at the fill adapter end. CAUTION Table 2-34. Natura IGS System Fill Adapter Part Numbers Part Number Description...

  • Page 87: Manifold Equipment

    Manifolds are available in single and double row configurations. Manifolds can be coupled together using the 2” BSP Manifold Coupling (P/N: 38-400020-100). Cylinder capacity must match the selected manifold to ensure proper offset location. Table 2-35. Natura IGS System Manifold Equipment Part Numbers Part Number Description 38-351000-004 80 Liter 2 Stub 1 Row 2 in.

  • Page 88: Manifold Bracket

    Component Descriptions 2-10.1 Manifold Bracket Use to support the manifold. Figure 2-3. Manifold Bracket Table 2-36. Natura IGS System Manifold Bracket Part Numbers Part Number Description 01-8160-0200 Bracket for 80L Cylinder manifold 1 Row 200mm (inc 2 in. Clamp) 01-8160-0520 Bracket for 80L Cylinder Manifold 2 Rows 520mm (inc 2 in.

  • Page 89: Racking Components

    2-11 RACKING COMPONENTS The racking system for the Natura IGS system is modular and can be adjusted to fit any number of cylinders in a variety of row combinations. This section outlines the components used in the racking system. The components include: ®...

  • Page 90: 2-11.2 Front Clamping Bar

    Front Clamping Bar The front clamping bar presses the cylinders against either the rear wooden spacer or center wooden spacer. Figure 2-6. 2 Cylinder Front Clamping Bar Table 2-39. Natura IGS System Front Clamping Bar Part Numbers Part Number Description 03-8266-0000...

  • Page 91: Center Wooden Spacer

    Single Cylinder Clamping Bracket Use the single cylinder clamping bracket when using a single row of cylinders or a single cylinder system. Figure 2-10. Single Cylinder Clamping Bracket Table 2-42. Natura IGS System Single Cylinder Clamping Bracket Part Numbers Part Number Description 01-8131-0000...

  • Page 92: 2-11.6 Clamping Bolt

    Clamping Bolt Bolt used to connect the front clamping bar to the Unistrut rail. Clamping bolt comes with rel- evant nuts and washers. Figure 2-11. Clamping Bolt Table 2-43. Natura IGS System Clamping Bolt Part Numbers Part Number Description 01-8337-0200 Clamping Bolt, 2 Row, 80L - 28.2 in.

  • Page 93: Distance Pipe

    Use the distance pipe as a spacer when the front row of a cylinder rack has fewer cylinders than the rear row of the rack. Distance Pipes are only used on multi-row systems. Figure 2-13. Distance Pipe Table 2-45. Natura IGS System Distance Pipe Part Numbers Part Number Description 03-8331-0000 Distance Pipe 3/4 in.
  • Page 94 Component Descriptions THIS PAGE INTENTIONALLY LEFT BLANK. October 2021 2-44 06-237619-001...

  • Page 95: Chapter 3 System Design

    EVALUATION OF RISK/HAZARD The design and installation of a Natura IGS system requires due consideration of many relevant factors. The enclosure to be protected shall be examined with all relevant information extracted from detailed drawings and site visit(s).
  • Page 96 System Design • For server rooms, consider the duration of the discharge delay from first alarm until all hard discs have properly parked the head before agent release to prevent head crashing. Con- sider the location of nozzle in relations to servers using turning hard discs. •...

  • Page 97: Requirements For A Cylinder Storage Room

    System Design 3-2.1 Requirements for a Cylinder Storage Room For cylinder storage, weight and space considerations are normally the main concern. In most cases these considerations could be negligible as the cylinders are commonly kept inside a separate protected room. However, a number of issues need further consideration including: •...

  • Page 98: Extinguishing Values

    System Design EXTINGUISHING VALUES When calculating the required quantity of the selected Agent to be stored, use the most demanding flammable material involved and the net volume of the protected enclosure/room. The resulting oxygen concentration after release shall be calculated based on the net volume and the total quantity of Agent released.

  • Page 99: Ig-100 Total Flooding Concentration Factor Tables

    System Design IG-100 TOTAL FLOODING CONCENTRATION FACTOR TABLES Table 3-2. IG-100 US Customary Units Total Flooding Quantity Specific IG-100 mass required per unit volume of protected space, m/V (lb/ft Vapor Temperature Volume Design Concentration (volume %) °F 0.0355 0.0381 0.0408 0.0465 0.0526 0.0592...
  • Page 100 System Design Table 3-3. IG-100 SI Units Total Flooding Quantity Specific IG-100 mass required per unit volume of protected space, m/V (kg/m3) Temperature Vapor Volume Design Concentration (volume %) °C m3/kg 0.7265 0.572 0.614 0.658 0.750 0.848 0.954 1.069 1.194 0.7411 0.561 0.602...

  • Page 101: Ig-541 Total Flooding Concentration Factor Tables

    System Design IG-541 TOTAL FLOODING CONCENTRATION FACTOR TABLES Table 3-4. IG-541 US Customary Units Total Flooding Quantity Specific IG-541 mass required per unit volume of protected space, m/V (lb/ft Vapour Temperature Volume Design Concentration (volume %) °F 9.644 0.0431 0.0496 0.0565 0.0639 0.0719...
  • Page 102 System Design Table 3-5. IG-541 SI Units Total Flooding Quantity Specific IG-541 mass required per unit volume of protected space, m/V (kg/m3) Temperature Vapour Volume Design Concentration (volume %) °C m3/kg 0.5982 0.695 0.799 0.911 1.030 1.159 1.298 1.450 1.617 0.6102 0.681 0.783...

  • Page 103: Ig-55 Total Flooding Concentration Factor Tables

    System Design IG-55 TOTAL FLOODING CONCENTRATION FACTOR TABLES Table 3-6. IG-55 US Customary Units Total Flooding Quantity Specific IG-55 mass required per unit volume of protected space, m/V (lb/ft Vapor Temperature Volume Design Concentration (volume %) °F 9.666 0.0430 0.0495 0.0564 0.0637 0.0717...
  • Page 104 System Design Table 3-7. IG-55 SI Units Total Flooding Quantity Specific IG-55 mass required per unit volume of protected space, m/V (kg/m3) Temperature Vapor Volume Design Concentration (volume %) °C m3/kg 0.5993 0.693 0.798 0.909 1.028 1.157 1.296 1.448 1.615 0.6114 0.680 0.782...

  • Page 105: Ig-01 Total Flooding Concentration Factor Tables

    System Design IG-01 TOTAL FLOODING CONCENTRATION FACTOR TABLES Table 3-8. IG-01 US Customary Units Total Flooding Quantity Specific IG-01 mass required per unit volume of protected space, m/V (lb/ft Vapour Temperature Volume Design Concentration (volume %) °F 8.329 0.0499 0.0574 0.0654 0.0740 0.0832...
  • Page 106 System Design Table 3-9. IG-01 SI Units Total Flooding Quantity Specific IG-01 mass required per unit volume of protected space, m/V (kg/m Temperature Vapour Volume Design Concentration (volume %) °C m3/kg 0.5165 0.804 0.926 1.055 1.193 1.342 1.503 1.680 1.873 0.5269 0.789 0.907...

  • Page 107: Design Factors

    System Design 3-10 DESIGN FACTORS The basic quantity of agent required may be further modified to suit any special conditions that would adversely affect the usual extinguishing efficiency. Such conditions could include unclosable openings, re-ignition from heated surfaces, enclosure geometry, and obstructions which impinge on the distribution pattern of the nozzles.

  • Page 108: 3-10.2 Hold Time

    3-10.3 Temperature Considerations 3-10.3.1 Operating Temperature Range The Natura IGS system is designed and tested to operate with a temperature range of -4 to 130 °F (-20 to 54 °C). 3-10.3.2 Enclosure Temperature Decrease During discharge the temperature within the protected enclosure will drop approximately 9-18 °F (5 –...

  • Page 109: 3-10.4.2 Program Outputs

    System Design • Piping data, estimated pipe dimensions, pipe quality selected Note: Due consideration to flow/length/pressure drop in pipe sections to be taken when esti- mating pipe dimensions. • Maximum pressure that the enclosure can withstand (consult with a structural engineer to determine the value.) 3-10.4.2 Program Outputs The flow calculation program shall calculate and determine/verify the following outputs:...

  • Page 110: 3-10.8 Atmospheric Correction Factors

    System Design 3-10.8 Atmospheric Correction Factors The ambient pressure is affected by changes in altitude, therefore the agent quantity shall be multiplied, where applicable, by the correction factor (at the associated altitude) as listed in Table 3-11. Table 3-11. Atmospheric Correction Factors Altitude Enclosure Pressure Correction Factor...

  • Page 111: Cylinder Bank Installation

    System Design 3-12 CYLINDER BANK INSTALLATION Note: The racking components can be configured using the Natura IGS Cylinder Racking Con- figuration Calculator which can be downloaded from the Kidde Fire Systems distributor extranet. 3-12.1 Location The cylinders and associated racking components shall be located and installed according to the relevant cylinder bank assembly layout.

  • Page 112: Typical Floor Load

    System Design 3-13 TYPICAL FLOOR LOAD Use these table to calculate the floor load of the cylinder bank based on the length of the cylinder racking (Dimension C in Figure 3-2). Table 3-13. Approximate Weight per Foot of 80.0 Liter Cylinders IG-100 IG-541 IG-55...

  • Page 113: Selector Valves

    System Design 3-16 SELECTOR VALVES Standard EN12094-5 requires that selector valves be opened within a maximum time span of 3 seconds, the following rules will be used for designing all selector valve systems: • Always confirm the duration for which the solenoid valve will be kept energized by the con- trol panel.

  • Page 114: 3-16.1 Back-Plate Manifold For Selector Valves

    System Design 3-16.1 Back-Plate Manifold for Selector Valves The solenoid valves with manual override used for controlling the opening of the Selector valves are supplied as part of a back-plate manifold which holds the required numbers of solenoid valves. The back-plate manifold receives pressure from the discharge manifold via a pressure regulator reducing the supplied pressure to approx.

  • Page 115: 3-17.1 Nozzle Coverage

    The nozzles can be mounted in the upright or pendant position. 3-17.2 Nozzle Selection and Placement Use the Kidde Fire Systems Natura IGS Flow Calculation design software to determine the required orifice area and nozzle size. There are two Natura IGS system nozzle configurations: •...

  • Page 116: 3-17.2.1 Nozzle Placement

    System Design 3-17.2.1 Nozzle Placement There are certain coverage and height limitations which must be observed with each nozzle configuration to ensure proper agent distribution. 35.5 ft. 35.5 ft. 10.8 m (10.8 m) 25.07 ft. 39.6 ft. 7.64 m 12.08 m 35.5 ft.

  • Page 117: 3-17.3 Tee Split Limitations

    System Design • 360° Nozzles-360° nozzles must be located as close to the center of the enclosure as possible. 360° nozzles have a maximum coverage area defined as any square that can be inscribed in a circle of radius 25.2 ft (7.7 m, diagonal of a square 17.8 ft x 17.8 ft).

  • Page 118: 3-17.4 Pipe Sizing

    Pipe Sizing The following table may be used as an estimating guide for sizing distribution piping. This table is intended for use as a guide only. Use the Kidde Fire Systems Natura IGS Flow Calculation design software for the final design.

  • Page 119: 3-17.7 Pressure Actuation Limitations

    System Design 3-17.7 Pressure Actuation Limitations The following sections list the limitations on the various pressure activated accessories of the Natura IGS system: Table 3-19. Nitrogen Pilot Cylinder Actuation Cylinder, Driver and Ancillary Limits Detail 108 cu. in. 1040 cu. in.
  • Page 120 System Design THIS PAGE INTENTIONALLY LEFT BLANK. October 2021 3-26 06-237619-001...

  • Page 121: Chapter 4 Installation

    Kidde Fire Systems. 4-1.1 Personal Safety Installing a Natura IGS system requires the use of personal protection equipment (PPE). The PPE should as a minimum include: • Safety Toe Shoes, Helmet, Safety Glasses, and Hearing Protection •...

  • Page 122: Installation Process

    Installation INSTALLATION PROCESS When installing, follow this general process: 1. Install all system piping, including selector valves if applicable. 2. Pressurize the pipe network per local applicable standards. Blow out any debris in the piping once done. 3. Install the nozzles and traps. 4.

  • Page 123: System Overview

    During a discharge, the cylinders in the cylinder bank will be released almost simultaneously. Note: Kidde Fire Systems recommends that the release unit be installed on the left most cyl- inder if possible.

  • Page 124: 4-4.2 Selector Valve System

    Installation 4-4.2 Selector Valve System In selector valve systems, the agent may be distributed to various hazards from a common cylinder bank, non-simultaneously. Only one hazard can be protected at a time. Therefore, it is recommended that a reserve bank of cylinders is maintained so that continuous fire suppression is available in the event of a discharge.
  • Page 125 Installation Figure 4-3 shows the Distribution manifold in a selector valve system including the selector valves and back-plate manifold. Not all release units are shown in the image. TO DISTRIBUTION PIPE WORK ZONE 1 NOZZLE INSTALLATION, TYPICAL TO DISTRIBUTION PIPE WORK ZONE 2 TO DISTRIBUTION PIPE WORK ZONE 3...

  • Page 126: Systems Using Discharge Delays

    Installation 4-4.3 Systems Using Discharge Delays Discharge delays prevent a system from discharging until a specified time has expired. Discharge delay systems use nitrogen from a nitrogen pilot cylinder for activation of the cylinder valves. Use an electric control head to open the valve on the pilot cylinder. The nitrogen then travels to the discharge delay.

  • Page 127: Cylinder Bank Installation

    Installation CYLINDER BANK INSTALLATION Before the cylinder installation begins, it is strongly recommended that door(s) to the cylinder storage room are secured in the OPEN position. Use signs and warning tape to restrict access to the area. No other tasks should be performed while installing the cylinders. The cylinders and associated equipment shall be placed and installed according to the project specific cylinder bank assembly layout.

  • Page 128: 4-5.2 Racking Install Diagrams

    Installation 4-5.2 Racking Install Diagrams Note: The racking components can be configured using the Natura IGS Cylinder Racking Con- figuration Calculator which can be downloaded from the Kidde Fire Systems distributor extranet. Use the following diagrams when planning out the install.

  • Page 129: Row Wooden Racking Layouts

    Installation 4-5.2.2 2 Row Wooden Racking Layouts Note: • Manifolds can be offset to the left (as illustrated) or to the right of the cylinders. Figure 4-6. Dual Row Racking System with Wooden Bracketing Table 4-8. Dimensions for Racking Systems with Wooden Bracketing Dimension in inches (mm) Center of Center Rear...

  • Page 130: 4-5.2.3 Distance Pipe Installation

    Installation 4-5.2.3 Distance Pipe Installation In systems where there is an odd number of cylinders, use a distance pipe (80L P/N 03-8331-0000, 140L P/N 03-8331-0140) to ensure the lone cylinder is held properly in the wooden bracket. The distance pipe is a sheath that goes over the clamping bolt. Distance Pipe Figure 4-7.

  • Page 131: 4-5.2.4 Manifold Installation

    Installation 4-5.2.4 Manifold Installation ANCHOR TO BE SELECTED DEPENDING ON CONDITION / STRENGTH OF WALL. BRACE TO BE SELECTED AND FITTED ON SITE Figure 4-8. Manifold Installation Table 4-9. Manifold Installation Details Used For Max. Load Type No. Weight (kgs) 80 L 140 L 01-8160-0200...

  • Page 132: 4-5.2.5 Cylinder And Valve Installation Diagrams

    Installation 4-5.2.5 Cylinder and Valve Installation Diagrams Discharge Outlet Discharge Outlet Valve Actuation Hose Connections Actuation Hose Connections Safety Burst Disc Vent Gauge Port Gauge Port Cylinder Gauge Port Indictator Used to locate Gauge Port when Transport Cap is installed. Side View Rear View Figure 4-9.

  • Page 133: Cylinder Bank Assembly

    Installation Discharge Hose Valve Secondary Cylinder Gauge Assembly Actuation Hose Cylinder Figure 4-11. Typical Secondary Cylinder/Valve Assembly (Rear View) CYLINDER BANK ASSEMBLY 4-6.1 Securing the Manifold Before measuring the placement of the manifold brackets, check the cylinder height(s) to en- sure accuracy to the design plan.

  • Page 134: 4-6.2 Manifold Safety Device

    Installation 4-6.2 Manifold Safety Device Wherever there are closed sections of pipe, install a manifold safety device. This device pre- vents any unlikely overpressure within the pipe. Note: The manifold safety device may be vented to atmosphere or connected to the down- stream pipe work (after any selector valves if applicable) to prevent accidental exposure to the agent in quantities that may exceed exposure limits within the cylinder storage room.

  • Page 135: Install Discharge Hoses To Manifold Check Valves

    Installation 4-6.3 Install Discharge Hoses to Manifold Check Valves After installing the manifold, install the discharge hoses to the manifold check valves. 4-6.4 Securing Single-Row Cylinders Follow this procedure to secure the cylinders in a single row (see Figure 4-5): Note: The installation of the manifold and the pipe work within the cylinder storage area/room must be completed before cylinders are moved into the cylinder storage area/room.

  • Page 136: 4-6.6 Positioning Cylinders

    Installation 4-6.6 Positioning Cylinders For ease of positioning the cylinder, the gauge port is marked by a label on the shoulder of the cylinder. Gauge Port Figure 4-13. Cylinder Valve Gauge Port Follow this procedure to install the cylinders after all discharge hoses have been connected to manifold check valves and the cylinders secured in their brackets: 1.

  • Page 137: 4-6.6.1 Installing Back-Plate Manifold For Selector Valve Systems

    Installation 4-6.6.1 Installing Back-Plate Manifold for Selector Valve Systems When installing selector valves, ensure that there is enough clearance to open and close the selector valve using the handle. Also ensure that the handle is WARNING kept with the selector valve in case of emergency. Follow these steps to install the back-plate manifold for systems which uses selector valves: 1.

  • Page 138: 4-6.7 Installing Secondary Cylinder Gauge Assembly

    Installation 4-6.7 Installing Secondary Cylinder Gauge Assembly Follow these steps to install the secondary cylinder gauge assembly: 1. Make sure the O-ring in the connecting swivel of the secondary cylinder gauge assembly is in place and properly lubricated. If lubrication is missing, use silicone spray (Würth Art no: 0893221 or similar).

  • Page 139: 4-6.8 Installing Release Units

    Installation 4-6.8 Installing Release Units Figure 4-17. Release Unit Release units should be installed on the front row, left most cylinder whenever possible. This provides some protection under the manifold and provides easy access for manual discharge. When connecting multiple cylinders using actuation hoses, use the following: Table 4-11.

  • Page 140: 4-6.8.1 Aligning The Release Unit After Pressurization

    Installation 4. Leak test all connections on the release unit by means of ammonium-free leak detection liquid or spray, ensuring that there is no leakage (see Section 4-6.10). Do not spray leak test liquid on the valve shield or anti-recoil cap. This area must remain free of moisture at all times.

  • Page 141: 4-6.9 Locations For Leak Testing The Valve And Cylinder

    Installation 4-6.9 Locations for Leak Testing the Valve and Cylinder Note: As the system relies on pressure from the cylinders to operate, all permanently pres- surized connections (or those under pressure during a discharge, including the cylinder valves) must be checked for leakage during the installation. This check includes actua- tion and outlet port valve, the gauge connection port on the release unit or cylinder sec- ondary gauge, and the various parts fitted into the contact gauge unit(s) and the pilot hoses.

  • Page 142: 4-6.10 Locations For Leak Testing The Release Unit

    Installation 4-6.10 Locations for Leak Testing the Release Unit The arrows on the sketch below indicate locations where to apply ammonium-free leak detection liquid or spray in order to verify that there are no leaks. Should a leak be found on the release unit, the unit shall be removed from service and replaced with a working unit.

  • Page 143: Installation Of Hoses

    Installation INSTALLATION OF HOSES Ensure that hoses are correctly installed and do not exceed the maximum bend radius. Do not twist the hose when installing as this can lead to damage or incorrect installation. r min. r min. r min. r min.

  • Page 144: Distribution Pipe & Fittings

    Installation DISTRIBUTION PIPE & FITTINGS Piping should be installed in accordance with good pipe fitting practices. Care should be taken to avoid the potential for restrictions being caused by foreign material, faulty fabrication, or improper installation. The piping system should be securely supported with due allowance made for agent thrust forces and thermal expansion or contraction.
  • Page 145 Installation Note: A shaded cell indicates the pipe size is allowed. Table 4-14. Allowable Pipe Grade and Size for Use with Natura IGS System Manifold to Selector valves for Sch 40 THDF Per FSSA Grade NPS Pipe A-106B A-53B A-106A...

  • Page 146: 4-8.3 Fittings

    Installation Table 4-16. Allowable Pipe Grade and Size for Use with Natura IGS System Manifold to Selector valves for Sch. 80 Threaded Fitting Grade NPS Pipe A-106B A-53B A-106A A-53A A-53F size A-106C A-53B A-53A Furnace 1-1/4 1-1/2 2-1/2 4-8.3 Fittings Fittings shall conform to the requirements of NFPA 2001, 2022 Edition, Sections 5.2.2.

  • Page 147: Support Of Pipes/Manifolds

    Installation 4-8.4 Support of Pipes/Manifolds 4-8.4.1 Pipe Spans The distance between supports should not exceed the distances stated in Table 4-17. Supports shall be fastened to an adequate structural member by the use of suitable anchors, expansion anchors, plugs, or similar means. Anchors and fastening bolts shall be selected in accordance with the anticipated loads and the dimension of the hole in the relevant bracket.

  • Page 148: Support Details

    Installation 4-8.4.3 Support Details HANG SUPPORTS TO STEEL BEAM, TYPE STEEL BEAM (VARIABLE SIZE) PROFILE, P1796 PROFILE, P1000 (INCL. SCREW) (VARIABLE LENGTH) M10 BOLT & SPRING NUT P1008 PIPE CLAMP, ELZ 2 (VARIABLE SIZE) PROFILE, P2663 (VARIABLE LENGTH) Figure 4-22. Pipe Support Details Type A HANG SUPPORTS TO STEEL BEAM, TYPE STEEL BEAM (VARIABLE SIZE)
  • Page 149 Installation HANG SUPPORTS, TYPE M10 BOLT & SPRING NUT P1008 M10 BRASS WALL ANCOR PIPE CLAMP, ELZ 2 (VARIABLE SIZE) PROFILE, P1047 PROFILE, P2663 (VARIABLE LENGTH) M10 BRASS WALL ANCOR PROFILE, P1000 (VARIABLE LENGTH) MIN. 200MM PROFILE, P1047 IF BRIK WALL Figure 4-25.
  • Page 150 Installation SUPPORT DETAIL SUPPORT, WALL SUPPORT, CEILING RUBBER RUBBER Figure 4-28. Support Details NOZZLE, CEILING NOZZLE, WALL NOZZLE DETAILS CONCRETE CEILING ANGLE ACC. TO SOCKET ISOMETRIC DRAWING FALCE CEILING THREADED NOZZLES TYPICAL ESCUTCHEON NOZZLE Figure 4-29. Nozzle Details October 2021 4-30 06-237619-001...

  • Page 151: 4-8.5 Installation Of Pipes

    Installation 4-8.5 Installation of Pipes 4-8.5.1 Cutting The required length of pipe is measured and marked on the pipe. The pipe is cut at 90° with a cutting machine. After cutting, the pipe end shall be reamed and all burrs removed and all cutting oil shall be removed from both inside and outside of the pipe.

  • Page 152: 4-8.5.3 Grooved Joining

    Installation 4-8.5.3 Grooved Joining Rolled grooved joining may be used for Natura IGS systems. If such fittings are to be used then the supplier must be consulted to verify maximum working pressure. 4-8.5.4 Installation of Pipes Pipe and fittings must be installed in strict accordance with the system drawings and good pipe fitting practices.

  • Page 153: Threaded Pipe Assemblies

    Installation 4-8.5.5 Threaded Pipe Assemblies For pipe thread fittings sealed using a metal-to-metal connection, the metal of the male and female fittings deforms during installation to create this seal. As a result, pipe thread connections tend to leak after a connection is made and then disassembled and re-assembled. If the connection leaks after re-assembly, you may need to replace one or more of the fittings.

  • Page 154: Pressure Testing Of Pipework

    Once installation of the open ended pipe work is complete, all nozzle connections shall be plugged. and the pipe shall be pressure tested in accordance with national standards. Manifolds and other closed section pipe work, such as selector valves, are pressure tested by Kidde Fire Systems. 4-11.1 Precautions Pneumatic testing involves the hazard of energy stored in compressed gas.

  • Page 155: Signs And Labeling

    Installation 4-12 SIGNS AND LABELING 4-12.1 Storage Room All doors to the system storage room shall be marked with a sign with the following text (in the local language): “CAUTION! Inert Gas Cylinder Storage Room Before entering ensure doors are secured in the OPEN position” Note: Where practicable the access to storage room and route for moving cylinders to the storage room should have access restricted during installation, this can be achieved us- ing cones coupled with red and white warning flash tape.

  • Page 156: Electrical Installation

    Installation 4-13 ELECTRICAL INSTALLATION The cable routing plan shall include all electrical components including detailed loop information and the cable quality to be used, such as; mm sq, rating IEC, braiding, twisted cores, required material and color of the outer sheath, bending radius, max. distance between supports/strapping, 90º...

  • Page 157: 4-13.2 Solenoid Valve, Release And Selection

    Installation 4-13.2 Solenoid Valve, Release And Selection In order to avoid accidental release of the system, it is recommended that the solenoid release units only be fitted to the cylinder valve after the control panel has been finally commissioned and found to operate as intended. Note: Never attempt to relocate the solenoid valve from its mechanical position;...

  • Page 158: Typical Wiring Details

    Installation 4-14 TYPICAL WIRING DETAILS SOLENOID CONNECTION 24V DC SOLENOID CONNECTION TO NON POWER LIMITED RELEASE CIRCUITS: SHIELD CONNECTOR CONNECTION COIL UNIT PLUG COIL PANEL OUTPUT CONNECTOR 1 AND 2 FREE CHOSEN 24V DC SOLENOID CONNECTION TO REVERSIBLE VOLTAGE MONITORING OUTPUTS, GK TYPE 3010-1010 CONNECTION COIL UNIT PLUG COIL IN-LINE RELEASING...

  • Page 159: Pressure Operated Switches

    Installation 4-15 PRESSURE OPERATED SWITCHES Pressure operated switches must be connected to the pilot piping or discharge manifolds as shown in Figure 4-33 and Figure 4-34. The preferred mounting position is upright. Both the standard and explosion-proof pressure switches have 1/2-inch NPT pressure inlets to connect to the piping.

  • Page 160: Pressure Operated Trip

    Installation 1 in. NPT FEMALE BOTH ENDS FOR ELECTRIC CONNECTION. SWITCH SUPPLIED WITH (2) 1 in. NPT PIPE PLUGS POSITION 3 POLE PRESSURE OPERA TED EXPLOSION PROOF SWITCH 3 POLE SINGLE THROW TOGGLE SWITCH (6) COVER SCREWS OPERATING HEAD EXPLOSION PROOF MACHINED JOINT.

  • Page 161: Nitrogen Pilot Cylinder Accessories Installation

    Installation 4-17 NITROGEN PILOT CYLINDER ACCESSORIES INSTALLATION Use the nitrogen pilot cylinders to drive either nitrogen time delays or sirens. 4-17.1 Installation of Nitrogen Pilot Cylinder, P/N 85-877690-001 and Mounting Bracket, P/N WK-877845-000 Follow these instructions to install the 108 cu.in. Nitrogen pilot cylinder: 1.

  • Page 162: Installation Of Flexible Discharge Hose, P/N Wk-251821-000

    Installation Before connecting cylinders into the siren pipework, tighten straps until there is clearance enough to allow the cylinders to be rotated in place if required. Tighten fully when all components are correctly positioned. 1040 cu. in. cylinders being installed as siren drivers, should have the add-on label P/N 06- 231866-518 (siren driver) affixed to the area at the center of the cylinder label (rectangle with the dotted line) to indicate the function of the unit.
  • Page 163 Installation 4-17.3.1 Installation of Electric Control Heads to N 1040 cu. in. Pilot Cylinder The placement supervision signal is not a substitute for ensuring proper interlock of the actuator plunger to the pilot check assembly. Make sure the WARNING control head is properly seated. When installed on the nitrogen pilot cylinder, the Control Head Monitor is not completely snug against the valve, allowing for easier attachment of the conduit.

  • Page 164: 4-17.3.2 Installation Of Electric Control Head To 108 Cu. In. Nitrogen Pilot Cylinder

    Installation 4-17.3.2 Installation of Electric Control Head to 108 cu. in. Nitrogen Pilot Cylinder The placement supervision signal is not a substitute for ensuring the proper interlock of the actuator plunger to the pilot check assembly. Make sure the WARNING control head is properly seated.
  • Page 165 Installation 3. Turn the cylinder until the cylinder valve discharge outlet is in the desired position. Note: The cylinder must be positioned so that the gauge is accessible and the control head is readily accessible during manual operation. Additionally, the CHM should face opposite any supervisory pressure switch and should not rest against the pressure gauge.
  • Page 166 Installation Slot for Safety Burst Disc Outlet (on Underside of Control Head Monitor) Supervisory Pressure Switch Control Head Monitor N2 Pilot Cylinder Safety Burst Disc Outlet Port Figure 4-42. Control Head Monitor and Pilot Cylinder, Top View, no Control Head Shown Control Head Monitor Supervisory Pressure Switch Safety Burst Disc Outlet Port...

  • Page 167: 4-17.3.3 Installation Of Lever Or Lever/Pressure Operated Control Head

    Installation 4-17.3.3 Installation of Lever or Lever/Pressure Operated Control Head Ensure that pilot line is non-pressurized and the actuating pins are in the retracted (SET) position. Failure to follow this procedure will cause the pilot cylinder to WARNING discharge accidentally when the control head is installed on the cylinder valve. 1.

  • Page 168: 4-17.4.1 Connecting Discharge Delay To The Pressure Regulator And Cylinder Valve

    Installation 4-17.4.1 Connecting Discharge Delay to the Pressure Regulator and Cylinder Valve Follow these steps when connecting the discharge delay to the pressure regulator and valve. 1. After installing the discharge delay, connect the 3/4” male NPT x 1/4” NPT female bushing adapter to the outlet on the discharge delay.
  • Page 169 Installation 1/4” BSPP Male x NPT Male Outlet Inlet Straight Adapter Pressure Regulator 3/4” Male x 1/4” NPT Female Back-Plate Manifold Hose Bushing Adapter P/N 01-3273-1200 Discharge Delay Copper Washer 1/4” BSPP Female x NPT Male Straight Adapter 1/4” NPT Female 1/4”...

  • Page 170: 4-17.5 Pressure Operated Siren

    Installation 4-17.5 Pressure Operated Siren The pressure operated siren shall be located in accordance with the installation plan. Connect the siren in accordance with requirements corresponding to the siren driver cylinder noted in Table 4-22: Table 4-22. Siren Driver Cylinder Actuation Limits Number of Maximum Maximum...

  • Page 171: 4-17.5.1 Sample Siren Setups

    Installation 4-17.5.1 Sample Siren Setups The following show possible examples for operating the siren. Pressure and Lever Operated Control Head Dedicated 108 cu.in. N2 Siren Driver To Pressure Regulator and Agent Cylinders N2 Pilot Cylinder Discharge Delay NOTE: Components not to scale Figure 4-48.

  • Page 172: Odorizer

    Installation 4-18 INSTALLATION OF PRESSURE TRIP, P/N 81-874290-000 Install the pressure trip on the discharge manifold or piping in the horizontal position as shown on the system drawings. Connect the trip to the piping with 1/2-inch Schedule 40 pipe. The minimum operating pressure required is 50 psig (3.45 bar).

  • Page 173: Selector Valves

    Installation 4-21 SELECTOR VALVES Note: Valves can be installed horizontally or vertically. Kidde Fire Systems recommends installing union fittings before and after the valves to facilitate future service work. 4-21.1 1-inch, 1 1/2-inch, and 2-inch Selector Valves Install the 1-inch, 1 1/2-inch, and 2-inch selector valves by following the steps listed below: 1.

  • Page 174: Lockout Valves

    Installation 4-22 LOCKOUT VALVES Note: Lockout valves are required when the agent concentration is at or above the LOAEL. The lockout valve with limit switch must be installed in the discharge pipe network, down- stream of all cylinders, check valves, and selector valves. All valves must be easily accessible. Lockout valves can be installed in either the vertical or horizontal position using good pipe fit- ting practices.

  • Page 175: Main To Reserve Transfer Switch

    Installation 4-23 MAIN TO RESERVE TRANSFER SWITCH The main to reserve transfer switch is used in the system to toggle the connection between the electrical release units installed on the main or reserve cylinders. For electrical wiring with a single electrical release unit, refer to Figure 4-53 and for two electrical release units, refer to Figure 4-54.

  • Page 176: Post-Installation Procedures

    11. Manual release units must also be clearly identified and properly installed where they are readily accessible. All manual release units that activate Natura IGS systems should be properly identified as to their purpose. Particular care should be taken when multiple re- lease units exist on the same bank of containers.

  • Page 177: 4-24.1 Pilot Line Test

    Installation 4-24.1 Pilot Line Test After installation, check the complete pilot line arrangement for integrity. Perform this check as follows: 1. Place the control panel in manual mode. 2. Ensure the discharge hoses are not connected to the top of each cylinder valve and the anti-recoil caps are in place.
  • Page 178 Installation THIS PAGE INTENTIONALLY LEFT BLANK. October 2021 4-58 06-237619-001...

  • Page 179: Chapter 5 Operation

    Operation CHAPTER 5 OPERATION INTRODUCTION This chapter describes the operation of the Kidde Fire Systems Natura™ Inert Gas System (Natura IGS system) using IG-100, IG-541 IG-55, or IG-01 inert-gas agent (herein refer to collectively as the “agent”). SYSTEM CONTROLS AND INDICATORS 5-2.1...

  • Page 180: 5-2.3 Post-Fire Operation

    5. Immediately contact a Kidde Fire Systems distributor for service. LOCKOUT VALVES If applicable, it is recommended to lock-out the Natura IGS system when performing maintenance on the system or there is need to perform work that could cause false alarms and a discharge.

  • Page 181: Chapter 6 Maintenance

    CHAPTER 6 MAINTENANCE INTRODUCTION This chapter contains maintenance instructions for the Kidde Fire Systems Natura™ Inert Gas System (Natura IGS system) using IG-100, IG-541 IG-55, or IG-01 inert-gas agent (herein refer to collectively as the “agent”). These procedures must be performed in accordance with regulations.

  • Page 182: Maintenance Procedures

    Sheets in Appendix B of this manual and “Safe Cylinder Handling Procedures” on page iii. A program of systematic maintenance is essential for continuous, proper operation of all Natura IGS systems. Follow a periodic maintenance schedule as outlined in Table 6-1 and Table 6-2.
  • Page 183 Maintenance As an Authorized Kidde Fire Systems Natura IGS systems Distributor, perform preventative maintenance per Table 6-2. Table 6-2. Authorized Kidde Fire Systems Distributor Maintenance Schedule Schedule Requirement Paragraph Semi-Annual Perform Monthly inspection as outlined in Section 6-5 and the following additional tasks: Inspect the protected room Section 6-6.1...

  • Page 184: Weekly

    If used, check the nitrogen pilot cylinder pressure gauge for proper operating pressure. If there is a pressure loss (adjusted for temperature) of more than 10%, recharge with nitrogen to 1800 psig @ 70 °F (124 bar @ 21 °C) by an authorized Kidde Fire Systems Distributor. 6-4.3...

  • Page 185: 6-5.2 Inspect Hazard Access

    If necessary, clean parts as directed in Paragraph 6-11.1. Inspect the adapters, couplings and tees at the Natura IGS system cylinder pilot outlets for tightness. Tighten couplings if necessary. Replace any damaged parts. If applicable, check any pilot line actuation or discharge hoses in a similar manner.

  • Page 186: Semi-Annual Inspection Procedure

    2. Close the selector valve and store the emergency handle in a convenient place Should for any reason the unit fail to operate as intended or should there be any doubt about the opening/closing of the valve, contact Kidde Fire Systems. Never attempt to modify the actuator assembly (i.e. never open the actuator).

  • Page 187: Test Release Units

    6. Operate the Natura IGS system electrically. This can be accomplished by actuation of the Natura IGS system at the system control panel or by manual operation of an electric pull station.

  • Page 188: 6-6.7 Control Head Test For Nitrogen Pilot Cylinders

    3. Operate the Natura IGS system electrically. This can be accomplished by actuation of the Natura IGS system at the system control panel or by manual operation of an electric pull station. 4. Ensure applicable (per programming) electric control heads have operated, that is, the in- dicator on the electric control head has moved to the RELEASED position.

  • Page 189: 6-6.7.2 Lever Operated Control Head Test For Nitrogen Pilot Cylinders

    CAUTION 1. Remove all lever operated control heads from all Natura IGS system nitrogen pilot cyl- inders serving the hazard area being tested. 2. Operate the lever operated control heads and ensure the pin protrudes from the bottom of the control head after moving the lever to the open position.

  • Page 190: 6-6.8 Inspect Flexible Hoses

    Natura IGS system agent cylinder pressure gauges against a separate calibrated pressure gauge to ensure the Natura IGS system gauges are accurate. If the Natura IGS system gauges are not accurate, replace the release unit or secondary gauge assembly. This applies to agent cylinder gauges only.

  • Page 191: Inspection Procedures- 5 Year (Cfr)

    A cylinder that is damaged or corroded should be emptied, retested and restamped in accordance with CFR Title 49, Section 180.207. All Natura IGS system cylinders are designed, fabricated, and factory tested at 450 BAR (6527 psig) in compliance with UN 9809-2 specifications as stamped on each cylinder.

  • Page 192: Inspection Procedures- 10 Year (Eu)

    BS EN ISO 1968 latest edition. 6-10.1.3 Retest Cylinders used with in Natura IGS system are required to be hydrostatically re-tested and re- stamped in accordance with BS EN ISO 1968 latest edition prior to recharge and shipment. It is company policy that at the time of hydrostatic testing that valves are replaced with new.

  • Page 193: Service

    For other system components, refer to the installation drawings and Natura IGS system assembly drawings for guidance. Natura IGS system cylinders must be recharged or replaced when the cylinder pressure gauge indicates there is a loss of pressure (adjusted for temperature) of more than 5% or, immediately after discharge.

  • Page 194: Removing A Natura Igs System Cylinder

    Remove a Natura IGS system cylinder as follows: Do not disconnect the flexible discharge hose prior to removing release units from the Natura IGS system cylinders. Before replacing a Natura IGS system cylinder within a cylinder bank, ensure that the actuation line is WARNING completely vented of all pressure.

  • Page 195: Chapter 7 Post-Discharge Maintenance

    When a Natura IGS system cylinder has been used (or the indicated pressure is less than 190 bar or lower for 200 bar systems or 285 bar or lower for 300 bar systems at a reference temperature of 15ºC) it should be refilled immediately to the operating pressure at 15°C.

  • Page 196: Re-Installing Release Units

    Post-Discharge Maintenance RE-INSTALLING RELEASE UNITS Follow this procedure when re-installing the release unit: Note: When reinstalling the release unit, the O-ring must be replaced. 1. If the release unit was operated manually or the tamper seal was removed, install a new tamper seal.

  • Page 197: Re-Installing Secondary Cylinder Gauge Assemblies

    Note: The pre-assembled unit shall not be tampered with, as any adjustment to components pre-fitted to the connector block will lead to a leak. RECHARGING NATURA IGS SYSTEM CYLINDERS After a fire, contact Kidde Fire Systems or authorized distributor for service replacements or refilling of cylinders. NITROGEN PILOT CYLINDER SERVICE AND MAINTENANCE Any area in which nitrogen is used or stored must be properly ventilated.

  • Page 198: 7-6.2 Pilot Cylinder Removal

    Post-Discharge Maintenance 7-6.2 Pilot Cylinder Removal When removing a pressurized cylinder due to pressure loss, the control head must be in the SET position with the safety pull pin installed. A control head in the released position will cause the remaining contents of cylinder to discharge WARNING which may result in property damage and bodily injury.

  • Page 199: 7-6.3 Nitrogen Pilot Cylinder Recharge

    Post-Discharge Maintenance 7-6.3 Nitrogen Pilot Cylinder Recharge Note: This procedure is for Pilot cylinders only. Nitrogen Pilot cylinders must be recharged when the cylinder pressure gauge indicates pressure is 10% below normal (1800 PSIG at 70°F [124 bar @ 21°C] as adjusted for temperature as shown in Figure 7-2) or immediately after discharge.
  • Page 200 Post-Discharge Maintenance N PRESSURE - TEMPERATURE CHART 2100 2000 1900 1800 1700 1600 1500 1400 RECHARGE 1300 1200 -40° -20° 0° 20° 40° 60° 80° 100° 120° 140° TEMPERATURE °F Figure 7-2. Nitrogen Temperature vs. Pressure Data October 2021 06-237619-001...

  • Page 201: 7-6.4 Nitrogen Cylinder I-Valve Inspection And Services

    Post-Discharge Maintenance 7-6.4 Nitrogen Cylinder I-Valve Inspection and Services Inspect and service the Nitrogen I-Valve used on the 1040 cu. in. Nitrogen Pilot cylinder as follows: Note: After every discharge, certain components in the I-Valve assembly will have to be ser- viced and inspected before recharging the Cylinder/Valve Assembly.

  • Page 202: 7-6.4.2 Nitrogen Cylinder I-Valve Assembly

    Post-Discharge Maintenance 7-6.4.2 Nitrogen Cylinder I-Valve Assembly After each part has been thoroughly inspected, assemble the valve in the following order: 1. Install the new pilot check assembly. 2. Install the brass sleeve. 3. Install the sleeve retainer. 4. Install the spring. Note: The main check assembly is installed with the rubber seat facing up.

  • Page 203: Plain Nut Discharge Head Inspection And Service

    Post-Discharge Maintenance 7-6.4.4 Plain Nut Discharge Head Inspection and Service Note: After every discharge, certain components in the Plain Nut Discharge Head assembly must be inspected and serviced before recommissioning the Nitrogen Driver cylinder. Part numbers for the items which may require replacement are listed in Table 7-4. 1.
  • Page 204 Post-Discharge Maintenance THIS PAGE INTENTIONALLY LEFT BLANK. October 2021 7-10 06-237619-001...

  • Page 205: Chapter 8 Parts List

    01 inert-gas agent (herein refer to collectively as the “agent”) parts and associated system equipment. The Natura IGS System equipment can be ordered as complete assemblies or as individual items. In most situations, when ordering a system, it will be easier and more cost effective to order by assembly part numbers.

  • Page 206: Agent And Cylinder Part Number

    AGENT AND CYLINDER PART NUMBER The following tables list the part numbers for the various agent and cylinder combinations for the Natura IGS system. The part number for each cylinder shows the agent, cylinder size, fill temperature, fill pressure, and brand.
  • Page 207 Parts List Table 8-2. Natura IGS System First Fill Eligible Cylinders Description Part Number First Fill Eligible Kidde Fire Systems Cylinders with IG-100 First Fill Eligible 38-428022-100 Kidde Fire Systems 80L Cylinder filled with IG-100 to 200 bar First Fill Eligible...

  • Page 208: Release Units

    • 10 x O-rings pack* *O-rings also fit Secondary Cylinder Gauge Assemblies and Fill Adapters SECONDARY CYLINDER GAUGE ASSEMBLIES Table 8-5. Natura IGS System Secondary Cylinder Gauge Part Numbers Description Part Number Secondary Cylinder Gauge Assembly - 200 bar, N.O.

  • Page 209: Discharge Accessories

    Parts List DISCHARGE ACCESSORIES Table 8-7. Natura IGS System Discharge Accessories Part Numbers Description Part Number 19.68” Actuation Hose with Quick Connect Fitting, Straight to Straight 38-401110-500 23.62” Actuation Hose with Quick Connect Fitting, Straight to Straight 38-401110-600 23.62” Actuation Hose with Quick Connect Fitting, Straight to 90°...

  • Page 210: Selector Valves

    Parts List SELECTOR VALVES Table 8-8. Natura IGS System Selector Valve Part Numbers Description Part Number 1” Selector Valve, DN 25, 8-10 bar Actuator 22-37140-025 1 1/2” Selector Valve, DN 40, 8-10 bar Actuator 22-37140-040 2” Selector Valve, DN 50, 8-10 bar Actuator 22-37140-050 3”...

  • Page 211: Discharge Nozzles

    Parts List DISCHARGE NOZZLES Only listed Natura IGS system nozzles are to be used on the Kidde Fire Systems Inert Gas Systems. Failure to comply with this WARNING can result in WARNING unpredictable agent distribution. Note: For the full listed NPT nozzles with corresponding orifice areas, see Table 8-11 and Table 8-13.

  • Page 212: 8-9.1 Listed 360 Degree Nozzles

    Parts List 8-9.1 Listed 360 Degree Nozzles The Natura IGS system offers the 360 degree nozzle in brass for both NPT and BSP piping. Table 8-11. Natura IGS System Listed 360 Degree NPT Nozzles Area Nominal Thread Diameter Orifice Diameter 0.5”...
  • Page 213 Parts List Table 8-11. Natura IGS System Listed 360 Degree NPT Nozzles (Continued) Area Nominal Thread Diameter Orifice Diameter 0.5” 0.75” 1.00” 1.50” (mm) 19.5 298.6477 0.4629 38-407400-195 314.1593 0.4869 38-407400-200 20.5 330.0636 0.5116 38-407400-205 346.3606 0.5369 38-407400-210 21.5 363.0503 0.5627...
  • Page 214 Parts List Table 8-12. Natura IGS System Listed 360 Degree BSP Nozzles (Continued) Area Nominal Thread Diameter Orifice Diameter 0.5” 0.75” 1.00” 1.50” (mm) 113.0973 0.1753 38-417200-120 38-417300-120 12.5 122.7185 0.1902 38-417200-125 38-417300-125 132.7323 0.2057 38-417200-130 38-417300-130 13.5 143.1388 0.2219 38-417200-135 38-417300-135 153.9380...

  • Page 215: 8-9.2 Listed 180 Degree Nozzles

    Parts List 8-9.2 Listed 180 Degree Nozzles The Natura IGS system offers the 180 degree nozzle in brass for both NPT and BSP piping. Table 8-13. Natura IGS System Listed 180 NPT Degree Nozzles Area Nominal Thread Diameter Orifice Diameter 0.5”...
  • Page 216 Parts List Table 8-13. Natura IGS System Listed 180 NPT Degree Nozzles (Continued) Area Nominal Thread Diameter Orifice Diameter 0.5” 0.75” 1.00” 1.50” (mm) 19.5 298.6477 0.4629 38-407800-195 314.1593 0.4869 38-407800-200 20.5 330.0636 0.5116 38-407800-205 346.3606 0.5369 38-407800-210 21.5 363.0503 0.5627...
  • Page 217 Parts List Table 8-14. Natura IGS System Listed 180 BSP Degree Nozzles (Continued) Area Nominal Thread Diameter Orifice Diameter 0.5” 0.75” 1.00” 1.50” (mm) 113.0973 0.1753 38-417600-120 38-417700-120 12.5 122.7185 0.1902 38-417600-125 38-417700-125 132.7323 0.2057 38-417600-130 38-417700-130 13.5 143.1388 0.2219...

  • Page 218: Discharge Delay, Siren, And Associated Accessories

    Parts List 8-10 DISCHARGE DELAY, SIREN, AND ASSOCIATED ACCESSORIES Table 8-15. Natura IGS System Discharge Delay, Siren, and Associated Accessories Part Numbers Description Part Number Nitrogen Pilot Cylinder, 108 cu. in. (1.77 L) with Supervisory Pressure Switch, Normally 85-877690-001 Open Under Pressure 1040 cu.

  • Page 219: Fill Adapters

    Parts List 8-11 FILL ADAPTERS Table 8-16. Natura IGS System Fill Adapter Part Numbers Description Part Number 38-406000-001 Filling Adapter Assembly O-Ring for Filling Adapter 38-406000-003 Nitrogen Cylinder Recharge Adapter WK-933537-000 O-Ring for Nitrogen Cylinder Recharge Adapter (P/N WK-933537-000) WK-197008-000...

  • Page 220: Cylinder Racking Kits

    Parts List 8-13 CYLINDER RACKING KITS Table 8-18. Natura IGS System Cylinder Accessories Parts List Description Part Number Unistrut Cylinder Wall Bracket - 400mm 01-8121-1000 Unistrut Cylinder Wall Bracket - 440mm 01-8121-1400 Unistrut Cylinder Wall Bracket - 650mm 01-8122-1000 Unistrut Cylinder Wall Bracket - 950mm...

  • Page 221: Appendix Arefill Information

    Natura IGS for both 300 and 200 bar cylinders with the corresponding agents. A robust Quality Management System is expected to control the procedure and documents for the refilling process such that it is ensured that the cylinders receive the correct quantity, quality, and composition of gas and that the leak integrity is ensured.

  • Page 222: Calibration Of Testing And Measuring Equipment

    CHARGING EQUIPMENT This section describes the required charging equipment and specifies the cylinder assemblies compatible with the Natura IGS system. A-4.1 Cylinder and Valve Assemblies The various agents are stored in steel cylinders as a gas. The steel cylinders are capped with a valve assembly.
  • Page 223 3 = 300 bar Cylinder Size 14 = 140L 80 = 80L Figure A-1. Factory Filled Natura IGS System Agent and Cylinder Part Number Breakdown Table A-2. Natura IGS System Factory Filled Cylinder Part Numbers Description Part Number Kidde Fire Systems Factory Filled Cylinders with IG-01...
  • Page 224 Table A-3. Natura IGS System First Fill Eligible Cylinder Part Numbers Description Part Number First Fill Eligible Kidde Fire Systems Cylinders with IG-01 First Fill Eligible 38-428022-001 Kidde Fire Systems 80L Cylinder filled with IG-01 to 200 bar First Fill Eligible...

  • Page 225: Natura Igs Cylinder Valve, P/N 38-400000-001

    Valves must be replaced after each discharge. WARNING Fill Port/Actuation Port Note: Fill Adapter must be used when filling. Figure A-2. Natura IGS System Cylinder and Valve Assembly Figure A-3. Natura IGS System Cylinder and Valve Assembly Component Locations 06-237619-001 October 2021...

  • Page 226: Fill Adapters, P/N 38-406000-001

    Table A-4. Natura IGS System Fill Adapter Part Numbers Description Part Number Filling Adapter Assembly, CGA 580 38-406000-001 O-Ring for Filling Adapter (P/N 38-406000-001) 38-406000-003 Figure A-4. Fill Adapter, P/N 38-406000-001 for Natura IGS System Cylinder Valve October 2021 06-237619-001...

  • Page 227: Filling Process

    FILLING PROCESS The filling process for Natura IGS cylinder and valve assemblies may use pressure or weight as the means of controlling the quantity of the agent filled. During the filling process, take care not to exceed the pressure or temperature limitation of the system.

  • Page 228: A-5.2 Using The Fill Adapter

    4. Wrap the valve’s 25E EN 629-1 thread with 10-12 rounds of PTFE sealing tape; Quality: Grade L according to BS 7786 or PFTE-Paktape 0.057 mm. Apply the tape in a clockwise direction on the tapered thread in an even pattern, starting 2 mm from the start of the thread and ending approximately 2 mm from end of the thread.

  • Page 229: Filling Cylinder And Valve Assemblies

    A-5.3.1 Filling by Pressure Natura IGSs use cylinder pressures, at a filling reference temperature of 15°C, of 200 bar and 300 bar. When filling is complete, verify the final filling pressure(s). See the individual Pressure vs Temperature relations for each agent presented in...

  • Page 230: A-5.3.1.1 Partial Pressure Fill Information

    A-5.3.1.1 Partial Pressure Fill Information Procedures must be in place at the fill site to ensure contamination does not occur. CAUTION The pressures of each component agent gases required to fill a cylinders at 15°C are shown in Table A-5. Note: Table A-5 assumes a fill order of CO2, then Nitrogen, then Argon.

  • Page 231: A-5.3.2 Filling By Weight

    A-5.3.2 Filling by Weight Procedures must be in place at the fill site to ensure contamination does not occur. CAUTION When filling the agents by weight, administer each component gas per Table A-7 in order to achieve the required agent pressure at 15°C. Note: The net volume of the cylinder shall be used for calculating the required quantity of the individual gases.

  • Page 232: A-5.3.4 Principle Of Filling - Flow Path

    1/4 in. BSPP CONNECTION FILL ADAPTER Figure A-6. Natura IGS Fill Adapter and Cylinder Valve Showing the Pressure (Green) Path during Filling The Natura IGS cylinder valve can only be filled through the fill/gauge port as shown in Figure A-6. The filling can be carried out using the fill adapter 38-406000-001, which is detailed in Section 2-9.

  • Page 233: A-5.4 Required Records

    A-5.4 Required Records Per agency requirements, the filling site shall keep comprehensive records for at least five years from the date of filling, to provide the capability to: • Assure that materials of acceptable quality are used • Enable further testing of samples •...

  • Page 234: Checklist For Filling Operation

    A-5.5 Checklist for Filling Operation All pressurized cylinders can be extremely hazardous. Cylinder valves are capable of producing a high discharge thrust from the valve outlet when WARNING opened. Table A-8. Filling Checklist Step Description Checked Comments Ensure that the cylinder(s) to be filled are in good condition and secured / caged as described in detail in the Foreword.

  • Page 235: Leak Testing

    This section provides instructions for leak testing cylinders of inert gas agents used in the Natura IGS system. Each cylinder and valve assembly must be leak tested prior to affixing any Agency label. Leak tests can be accomplished using a leak detection fluid.
  • Page 236 October 2021 A-16 06-237619-001...

  • Page 237: Appendix Bsafety Data Sheets

    APPENDIX B SAFETY DATA SHEETS 06-237619-001 October 2021...

  • Page 238: Hazard Identification

    SAFETY DATA SHEET Argon IDENTIFICATION Product Name Argon Recommended use of the chemical and restrictions on use Identified uses Fire Extinguishing Agent Restrictions on use Consult applicable fire protection codes Company Identification Kidde-Fenwal, Inc. 400 Main Street Ashland, MA 01721 Customer Information Number (508) 881-2000 Emergency Telephone Number...
  • Page 239 SAFETY DATA SHEET Argon HAZARD IDENTIFICATION Disposal None Other Hazards Avoid direct inhalation of undiluted gas. Can cause suffocation by reducing oxygen available for breathing. Breathing very high concentrations can cause dizziness, shortness of breath, unconsciousness or asphyxiation. Specific Concentration Limits The values listed below represent the percentages of ingredients of unknown toxicity.
  • Page 240 SAFETY DATA SHEET Argon FIRE - FIGHTING MEASURES Specific hazards arising from the chemical Containers may explode in heat of fire. Special Protective Actions for Fire-Fighters Wear full protective clothing and self-contained breathing apparatus as appropriate for specific fire conditions. ACCIDENTAL RELEASE MEASURES Personal precautions, protective equipment and emergency procedures Remove leaking cylinder to a safe place.

  • Page 241: Exposure Controls/Personal Protection

    SAFETY DATA SHEET Argon EXPOSURE CONTROLS/PERSONAL PROTECTION Body Protection Normal work wear. PHYSICAL AND CHEMICAL PROPERTIES Appearance Physical State Compressed gas Color Colorless Odor None Odor Threshold Not applicable Not applicable Relative Gas Density 1.38 Boiling Range/Point (°C) -185.9 Melting Point (°C) -189 Flash Point (PMCC) (°C/F) Not flammable...

  • Page 242: Toxicological Information

    SAFETY DATA SHEET Argon TOXICOLOGICAL INFORMATION Acute Toxicity Simple asphyxiant. Specific Target Organ Toxicity (STOT) – single exposure Exposure to argon gas at high concentrations can cause suffocation by reducing oxygen available for breathing. Breathing very high concentrations can cause dizziness, shortness of breath, unconsciousness or asphyxiation.
  • Page 243 SAFETY DATA SHEET Argon DISPOSAL CONSIDERATIONS Disposal Methods Dispose of container in accordance with all applicable local and national regulations. Do not cut puncture or weld on or near to the container. If spilled, contents will vaporize to the atmosphere. TRANSPORT INFORMATION Safety Data Sheet information is intended to address a specific material and not various forms or states of containment.

  • Page 244: Other Information

    SAFETY DATA SHEET Argon OTHER INFORMATION Legend ACGIH: American Conference of Governmental Industrial Hygienists CAS: Chemical Abstracts Service IARC: International Agency for Research on Cancer LCLo: Lethal concentration low N/A: Denotes no applicable information found or available NTP: National Toxicology Program OSHA: Occupational Safety and Health Administration PEL: Permissible Exposure Limit SDS: Safety Data Sheet...
  • Page 245 SAFETY DATA SHEET Argonite® (Fire Extinguishing Agent and Expellant) IDENTIFICATION Product Name Argonite® Other Names IG-55 Recommended use of the chemical and restrictions on use Identified uses Fire Extinguishing Agent and Expellant Restrictions on use Consult applicable fire protection codes Company Identification Kidde-Fenwal, Inc.

  • Page 246: Composition/Information On Ingredients

    SAFETY DATA SHEET Argonite® (Fire Extinguishing Agent and Expellant) HAZARD IDENTIFICATION Response None Storage Keep container tightly closed. Protect from sunlight and store in well-ventilated place. Disposal None Other Hazards Avoid direct inhalation of undiluted gas. Can cause suffocation by reducing oxygen available for breathing.
  • Page 247 SAFETY DATA SHEET Argonite® (Fire Extinguishing Agent and Expellant) FIRST- AID MEASURES Indication of immediate medical attention and special treatment needed Notes to Physicians Treat symptomatically. FIRE - FIGHTING MEASURES Suitable Extinguishing Media Argonite® is used as an extinguishing agent and therefore is not a problem when trying to control a blaze.
  • Page 248 SAFETY DATA SHEET Argonite® (Fire Extinguishing Agent and Expellant) EXPOSURE CONTROLS/PERSONAL PROTECTION Nitrogen None established Argon None Appropriate engineering controls Use with adequate ventilation (natural or mechanical), especially in a confined space. Individual protection measures Respiratory Protection Not normally required. In oxygen deficient atmospheres, use a self contained breathing apparatus, as an air purifying respirator will not provide protection.
  • Page 249 SAFETY DATA SHEET Argonite® (Fire Extinguishing Agent and Expellant) STABILITY AND REACTIVITY Reactivity Containers may rupture or explode if exposed to heat. Chemical Stability Stable under normal conditions. Possibility of hazardous reactions Hazardous polymerization will not occur. Conditions to Avoid None known Incompatible Materials None known...
  • Page 250 SAFETY DATA SHEET Argonite® (Fire Extinguishing Agent and Expellant) TOXICOLOGICAL INFORMATION Aspiration Hazard Not an aspiration hazard. ECOLOGICAL INFORMATION Ecotoxicity No data available Mobility in soil Nitrogen and argon occur naturally in the atmosphere. Persistence/Degradability Nitrogen and argon occur naturally in the atmosphere. Bioaccumulative Potential Nitrogen and argon occur naturally in the atmosphere.

  • Page 251: Regulatory Information

    SAFETY DATA SHEET Argonite® (Fire Extinguishing Agent and Expellant) REGULATORY INFORMATION United States TSCA Inventory All components of this product are in compliance with the inventory listing requirements of the US Toxic Substance Control Act (TSCA) Chemical Substance Inventory. Canada DSL Inventory All ingredients in this product have been verified for inclusion on the Domestic Substance List (DSL).
  • Page 252 SAFETY DATA SHEET Argonite® (Fire Extinguishing Agent and Expellant) OTHER INFORMATION The information and recommendations presented in this SDS are based on sources believed to be accurate. Kidde-Fenwal Inc. assumes no liability for the accuracy or completeness of this information. It is the user's responsibility to determine the suitability of the material for their particular purposes.
  • Page 253 SAFETY DATA SHEET Nitrogen (Fire Extinguishing Agent) IDENTIFICATION Product Name Nitrogen (Fire Extinguishing Agent Other Names Recommended use of the chemical and restrictions on use Identified uses Fire Extinguishing Agent Restrictions on use Consult applicable fire protection codes Company Identification Kidde-Fenwal, Inc.

  • Page 254: Fire - Fighting Measures

    SAFETY DATA SHEET Nitrogen (Fire Extinguishing Agent) HAZARD IDENTIFICATION Disposal None Other Hazards Avoid direct inhalation of undiluted gas. Can cause suffocation by reducing oxygen available for breathing. Breathing very high concentrations can cause dizziness, shortness of breath, unconsciousness or asphyxiation. Specific Concentration Limits The values listed below represent the percentages of ingredients of unknown toxicity.

  • Page 255: Accidental Release Measures

    SAFETY DATA SHEET Nitrogen (Fire Extinguishing Agent) FIRE - FIGHTING MEASURES Specific hazards arising from the chemical Containers may explode in heat of fire. Special Protective Actions for Fire-Fighters Wear full protective clothing and self-contained breathing apparatus as appropriate for specific fire conditions.
  • Page 256 SAFETY DATA SHEET Nitrogen (Fire Extinguishing Agent) EXPOSURE CONTROLS/PERSONAL PROTECTION Body Protection Normal work wear. PHYSICAL AND CHEMICAL PROPERTIES Appearance Physical State Compressed gas Color Colorless Odor None Odor Threshold No data available Not applicable Gas Density 0.075 lb/ft F as vapor Boiling Range/Point (°C/F) -196 C/-321...
  • Page 257 SAFETY DATA SHEET Nitrogen (Fire Extinguishing Agent) TOXICOLOGICAL INFORMATION Acute Toxicity Simple asphyxiant. Specific Target Organ Toxicity (STOT) – single exposure Exposure to nitrogen gas at high concentrations can cause suffocation by reducing oxygen available for breathing. Breathing very high concentrations can cause dizziness, shortness of breath, unconscious- ness or asphyxiation.

  • Page 258: Disposal Considerations

    SAFETY DATA SHEET Nitrogen (Fire Extinguishing Agent) DISPOSAL CONSIDERATIONS Disposal Methods Dispose of container in accordance with all applicable local and national regulations. Do not cut puncture or weld on or near to the container. If spilled, contents will vaporize to the atmosphere. TRANSPORT INFORMATION Safety Data Sheet information is intended to address a specific material and not various forms or states of containment.
  • Page 259 SAFETY DATA SHEET Nitrogen (Fire Extinguishing Agent) OTHER INFORMATION Legend ACGIH: American Conference of Governmental Industrial Hygienists CAS: Chemical Abstracts Service IARC: International Agency for Research on Cancer LCLo: Lethal concentration low N/A: Denotes no applicable information found or available NTP: National Toxicology Program OSHA: Occupational Safety and Health Administration PEL: Permissible Exposure Limit...
  • Page 260 SAFETY DATA SHEET IG-541 IDENTIFICATION Product Name IG-541 Recommended use of the chemical and restrictions on use Identified uses Fire Extinguishing Agent Restrictions on use Consult applicable fire protection codes Company Identification Kidde-Fenwal, Inc. 400 Main Street Ashland, MA 01721 Customer Information Number (508) 881-2000 Emergency Telephone Number...
  • Page 261 SAFETY DATA SHEET IG-541 HAZARD IDENTIFICATION Disposal None Other Hazards Avoid direct inhalation of undiluted gas. Can cause suffocation by reducing oxygen available for breathing. Breathing very high concentrations can cause dizziness, shortness of breath, unconsciousness or asphyxiation. Specific Concentration Limits The values listed below represent the percentages of ingredients of unknown toxicity.
  • Page 262 SAFETY DATA SHEET IG-541 FIRE - FIGHTING MEASURES Suitable Extinguishing Media This product is used as an extinguishing agent and therefore is not a problem when trying to control a blaze. Use extinguishing agent appropriate to other materials involved. Keep containers and surroundings cool with water spray as containers may rupture or burst in the heat of a fire.
  • Page 263 SAFETY DATA SHEET IG-541 EXPOSURE CONTROLS/PERSONAL PROTECTION Individual protection measures Respiratory Protection Not normally required. In oxygen deficient atmospheres, use a self contained breathing apparatus, as an air purifying respirator will not provide protection. Skin Protection Use leather or sturdy work gloves when handling cylinders. Eye/Face Protection Chemical goggles or safety glasses with side shields.
  • Page 264 SAFETY DATA SHEET IG-541 STABILITY AND REACTIVITY Incompatible Materials None known Hazardous Decomposition Products None TOXICOLOGICAL INFORMATION Acute Toxicity Simple asphyxiant. Specific Target Organ Toxicity (STOT) – single exposure Exposure to argon, nitrogen and carbon dioxide gases at high concentrations can cause suffocation by reducing oxygen available for breathing.
  • Page 265 SAFETY DATA SHEET IG-541 ECOLOGICAL INFORMATION Bioaccumulative Potential Argon, nitrogen and carbon dioxide occur naturally in the atmosphere. Other adverse effects No relevant studies identified. DISPOSAL CONSIDERATIONS Disposal Methods Dispose of container in accordance with all applicable local and national regulations. Do not cut puncture or weld on or near to the container.
  • Page 266 SAFETY DATA SHEET IG-541 OTHER INFORMATION NFPA Ratings NFPA Code for Health - 0 NFPA Code for Flammability - 0 NFPA Code for Reactivity - 0 NFPA Code for Special Hazards – None Legend ACGIH: American Conference of Governmental Industrial Hygienists CAS: Chemical Abstracts Service IARC: International Agency for Research on Cancer LCLo: Lethal concentration low...
  • Page 267 SAFETY DATA SHEET Odorizer IDENTIFICATION Product Name Odorizer Recommended use of the chemical and restrictions on use Identified uses Odorizing agent Restrictions on use For use in fire suppression systems only Company Identification Kidde-Fenwal, Inc. 400 Main Street Ashland, MA 01721 Customer Information Number (508) 881-2000 Emergency Telephone Number...
  • Page 268 SAFETY DATA SHEET Odorizer HAZARD IDENTIFICATION Precautionary Statements Prevention Keep away from heat/sparks/open flames/hot surfaces – no smoking. Keep container tightly closed. Use explosion proof equipment. Take precautionary measures against static discharge. Use only non-sparking tools. Wash hands thoroughly after handling. Wear protective gloves, protective clothing, eye protection and face protection.
  • Page 269 SAFETY DATA SHEET Odorizer FIRST- AID MEASURES Description of necessary first-aid measures Eyes Immediately flood the eye with plenty of water for at least 15 minutes, holding the eye open. Obtain medical attention. Skin Wash skin thoroughly with soap and water. Obtain medical attention if irritation persists. Ingestion Dilute by drinking large quantities of water and obtain medical attention.
  • Page 270 SAFETY DATA SHEET Odorizer HANDLING AND STORAGE Precautions for safe handling Wear appropriate protective clothing. Prevent skin and eye contact. Do not eat or drink while handling this material. Conditions for safe storage Store in original container tightly closed. Storage area should be: - cool - dry - well ventilated - under cover - out of direct sunlight EXPOSURE CONTROLS/PERSONAL PROTECTION Control parameters...
  • Page 271 SAFETY DATA SHEET Odorizer PHYSICAL AND CHEMICAL PROPERTIES Evaporation Rate (BuAc=1) No data available Solubility in Water Appreciable Vapor Density (Air = 1) VOC (g/l) Partition coefficient (n- No data available octanol/water) Viscosity No data available ° ° Auto-ignition Temperature C/867 Decomposition Temperature No data available...
  • Page 272 SAFETY DATA SHEET Odorizer TOXICOLOGICAL INFORMATION Specific Target Organ Toxicity (STOT) – repeat exposure No relevant studies identified. Serious Eye damage/Irritation Methyl Salicylate: Causes serious eye damage. Skin Corrosion/Irritation No relevant studies identified. Respiratory or Skin Sensitization No relevant studies identified. Carcinogenicity Not considered carcinogenic by NTP, IARC, and OSHA.
  • Page 273 SAFETY DATA SHEET Odorizer REGULATORY INFORMATION United States TSCA Inventory This product contains ingredients that are listed on or exempt from listing on the EPA Toxic Substance Control Act Chemical Substance Inventory. Canada DSL Inventory All ingredients in this product are listed on the Domestic Substance List (DSL) or the Non-Domestic Substance List (NDSL) or are exempt from listing.
  • Page 274 SAFETY DATA SHEET Odorizer OTHER INFORMATION The information and recommendations presented in this SDS are based on sources believed to be accurate. CaptiveAire Systems, Inc. assumes no liability for the accuracy or completeness of this information. It is the user's responsibility to determine the suitability of the material for their particular purposes.
  • Page 275 ASTRO PRODUCT CODE 6545800...
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  • Page 277 ASTRO PRODUCT CODE 6545800...
  • Page 278 ASTRO PRODUCT CODE 6545800...
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  • Page 283 ASTRO PRODUCT CODE 6545800...
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  • Page 286 KIDDE-FENWAL, INC. assumes no re- sponsibility for the product's suitability for a particular application. The fire suppression system design, installation, maintenance, service and troubleshooting must be performed by trained, authorized Kidde Fire Systems distributors 400 Main Street for the product to work correctly.
  • Page 287 06-237619-002 August 2022 Errata Addendum Natura™ Inert Gas System Design, Installation, Operation, and Maintenance Manual with FM Approvals and UL Listing, Rev AC EXPORT INFORMATION (USA): Jurisdiction: EAR US ECCN: EAR99 This document contains technical data subject to the EAR.
  • Page 289 Post-Discharge Maintenance Chapter ............. 10 Parts List Chapter ................10 Refill Information Appendix ..............11 Section A-4.2 Natura IGS Cylinder Valve, P/N 38-400000-001 ....11 Section A-5.1.1 Cylinder/Valve Replacement........... 11 Section A-5.3 Filling Cylinder and Valve Assemblies ......... 11 06-237619-002...
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  • Page 291 This addenda provides corrections for the Kidde Fire Systems Natura™ Inert Gas System Design, Installation, Operation, and Maintenance Manual with FM Approvals and UL Listing, Rev AC, P/N: 06-237619-001, herein refered to as the “DIOM”. This addendum superceeds the sections mentioned in the DIOM, but does not impact the rest of the DIOM.

  • Page 292: Introduction Chapter

    LOAEL (Lowest Observed Adverse Effect Level) is the lowest concentration at which an adverse toxicological or physiological effect has been observed in humans. For Natura IGS agents this value is 52%, corresponding to a residual Oxygen concentration of 10% (sea level equivalent). The human exposure limit is 3 minutes for inert gas systems designed to concentrations between 43% and 52%.

  • Page 293: Component Description Chapter

    COMPONENT DESCRIPTION CHAPTER Section 4-4.2 Selector Valve Systems Updated Table 4-3 to: Table 4-3.Selector Valve System Cylinder Bank Arrangement Components Item Description Selector Valve Actuator Connection for 1/4” Hi-flex hose Actuator Vent Outlet Selector Valve Discharge Manifold Back-plate Manifold Pressure Regulator set to 120 PSI Section 4-4.3 Systems Using Discharge Delays Updated Table 4-4 to: Table 4-4.

  • Page 294: Section 4-5.2.1 Clamp Racking Layouts

    Section 4-5.2.1 Clamp Racking Layouts Updated Figure 4-5 and Table 4-7 to: Note: • Manifolds can be offset Front or rear of container centre • Manifolds can be offset to the right (as illustrated) or to the left of the containers. Figure 4-5.

  • Page 295: Section 4-5.2.2 2 Row Wooden Racking Layouts

    Section 4-5.2.2 2 Row Wooden Racking Layouts Updated Figure 4-6 and Table 4-8 to: Note: Manifolds can be offset to the left (as illustrated) or to the right of the containers. Figure 4-6. 2 Row Wooden Racking System with Wooden Bracketing, Side View Table 4-8.
  • Page 296 Added Figure 4-7 and Table 4-9. Note: Manifolds can be offset to the left (as illustrated) or to the right of the containers. Figure 4-7. 2 Row Wooden Racking System with Wooden Bracketing, Top View Table 4-9. Top View Dimensions for 2 Row Racking Systems with Wooden Bracketing Dimension Container Centers Centre of Rear Containers...

  • Page 297: Section 4-5.2.4 2 Manifold Installation

    Section 4-5.2.4 2 Manifold Installation Updated Figure 4-9 to mention brace is supplied by the installer. ANCHOR TO BE SELECTED DEPENDING ON CONDITION / STRENGTH OF WALL. BRACE (SUPPLIED BY INSTALLER) TO BE SELECTED AND FITTED ON SITE CLAMP FOR MANIFOLD Figure 4-9.

  • Page 298: Section 4-6.5 Securing Multi-Row Cylinders

    Section 4-6.5 Securing Multi-Row Cylinders Added Note after step 9: Note: *Kidde Fire Systems does not recommend setting up the 140L cylinders in a 3 row con- figuration due to restrictions on access to the back row. Section 4-8.3 Fittings Rewrote section, correcting allowed Class of malleable or ductile iron fittings.

  • Page 299: Section 4-13.1 Supervisory Gauge Assembly Wiring

    Section 4-13.1 Supervisory Gauge Assembly Wiring Corrected section title, section text, and figures to read as follows: Connect the pressure guage on the release unit/secondary cylinder gauge assembly using the quick connect cables as indicated on the electrical schematic diagram and terminate in the allocated terminals in the control panel/junction box.

  • Page 300: Operation Chapter

    OPERATION CHAPTER No changes made. MAINTENANCE CHAPTER Section 6-8.2 Conduct System Pressure Test Added this new section as part of the 2 year inspection procedure. Text is as follows: Per NFPA 2001, Latest Edition, the piping system must be pressure tested in a closed circuit using Nitrogen or other dry gas.

  • Page 301: Refill Information Appendix

    REFILL INFORMATION APPENDIX Section A-4.2 Natura IGS Cylinder Valve, P/N 38-400000-001 Changed Warning text to read as follows: Valves must be replaced after 10 actuation. WARNING Section A-5.1.1 Cylinder/Valve Replacement Changed 1st Warning text to read as follows: Valves must be replaced after 10 actuation.
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  • Page 304 KIDDE-FENWAL, INC. assumes no re- sponsibility for the product's suitability for a particular application. The fire suppression system design, installation, maintenance, service and troubleshooting must be performed by trained, authorized Kidde Fire Systems distributors 400 Main Street for the product to work correctly.
  • Page 305 06-237619-003 March 2023 TPED Approved Cylinder Addendum Kidde Fire Systems Natura™ Inert Gas System Design, Installation, Operation, and Maintenance Manual with FM Approvals and UL Listing, Rev AC EXPORT INFORMATION (USA): Jurisdiction: EAR US ECCN: EAR99 This document contains technical...
  • Page 307 TABLE OF CONTENTS General ....................1 Component Description................2 TPED Approved Natura IGS System Agent Containers ........ 2 Spare Parts for Containers ..............4 Design Consideration................4 Install ....................4 Operation .................... 4 Maintenance..................4 Post Discharge Maintenance ..............4 Parts List .....................
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  • Page 309: General

    Kidde Fire Systems Natura™ Inert Gas System (Natura IGS system) TPPED Approved 80 liter cylinders are available in regions requiring this approval. Natura IGS cylinders can be filled with the following Inert gas clean agents (herein referred to as “agent”): •...

  • Page 310: Component Description

    Note: Containers in a system must all be of the same size, pressure, and agent. The Cylinder Assemblies, Release Units, Hoses, and other Natura IGS components con- nected to the manifold or valves must remain protected from exposure to moisture at all times.
  • Page 311 Cylinder Size 80 = 80L Brand 2 = Kidde Fire Systems (DOT Approved Cylinder) 3 = Kidde Fire Systems (TPED Approved Cylinder) Figure 1. IGS System Agent and Cylinder Part Number Breakdown Figure 2 represents a typical container assemblies. See Table 2 for container dimensions.

  • Page 312: Spare Parts For Containers

    -20° to 54°C (-4° to 130°F) unless superseded by local/national standards. Agent information can be found in the manuals listed in Table 1. The Natura IGS system flow calculation program is designed for a 20°C (68°F) container operating/storage temperature.

  • Page 313: Parts List

    Part Number Kidde Fire Systems Branded Cylinders with IG01 38-438021-001 Kidde Fire Systems Branded 80L Cylinder filled with IG01 to 200 bar (TPED Approved) 38-438031-001 Kidde Fire Systems Branded 80L Cylinder filled with IG01 to 300 bar (TPED Approved) Kidde Fire Systems Branded Cylinders with IG100...
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  • Page 316 KIDDE-FENWAL, INC. assumes no re- sponsibility for the product's suitability for a particular application. The fire suppression system design, installation, maintenance, service and troubleshooting must be performed by trained, authorized Kidde Fire Systems distributors 400 Main Street for the product to work correctly.
  • Page 317 06-237873-001 January 2023 2-Way NPT and Grooved Selector and Lockout Valve Addendum Kidde Fire Systems Clean Agent Systems EXPORT INFORMATION (USA): Jurisdiction: EAR US ECCN: EAR99 This document contains technical data subject to the EAR.
  • Page 319 TABLE OF CONTENTS General ....................1 Component Description................2 2-Way NPT and Grooved Selector Valves ..........2 2.1.1 Back Plate Manifold with Solenoids for Selector Valves ....... 5 2.1.2 Back-Plate Manifold Hose ............... 6 2.1.3 1/8 in. NPT Male to 1/4 in. Male BSPP Adapter .......... 7 2.1.4 Pressure Regulator and Bracket Kit............
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  • Page 321: General

    Kidde Fire Systems NPT and Grooved lockout valves can be locked in the close position to prevent agent from being discharged into a protected area for the safety of personnel.

  • Page 322: Component Description

    For selector valves with NEMA 4 rated solenoids, Kidde Fire Systems offers back-plate manifolds which includes the various number of solenoids to ease installation. For more information, see Section 2.1.1, Back Plate Manifold with Solenoids for Selector Valves.
  • Page 323 1 in. Selector Valve, NEMA 4, P/N: 85-100025-100 4 in. Selector Valve, NEMA 4, P/N: 85-400025-400 Figure 1. 1 and 4 inch Selector Valve, NEMA 4 Table 3. NEMA 4 Selector Valve Specifications Dimensions Thread Part Number Size Pressure Rating Type inches inches...
  • Page 324 1 in. Selector Valve, NEMA 7, P/N: 85-100724-100 4 in. Selector Valve, NEMA 7, P/N: 85-400724-400 Figure 2. 1 and 4 inch Selector Valve, NEMA 7 Table 4. NEMA 7 Selector Valve Specifications Dimensions Thread Part Number Size Lead Length Pressure Rating Type inches...

  • Page 325: Back Plate Manifold With Solenoids For Selector Valves

    2.1.1 Back Plate Manifold with Solenoids for Selector Valves P/N: 01-3508-000X Note: Use only with NEMA 4 rated solenoids. Not to be used with selector valves P/N: 85- 100724-100, 85-150724-150, 85-200724-200, 85-300724-300 or 85-400724-400. To simplify the selector valve installation, KFS offers a back-plate manifold with the pressure regulator, piping, and the required number of solenoids to provide pressure to the appropriate selector valve.

  • Page 326: Back-Plate Manifold Hose

    2.1.2 Back-Plate Manifold Hose P/N: 01-3273-1200 Use the hose to connect the NEMA 4 solenoid to the selector valves or to connect the Nitrogen pilot cylinder to the pressure regulator on the back-plate manifold. When connecting a back- plate manifold hose to the Nitrogen pilot cylinder, use adapter P/N: 85-025125-000. 27.6 in.

  • Page 327: 1/8 In. Npt Male To 1/4 In. Male Bspp Adapter

    2.1.3 1/8 in. NPT Male to 1/4 in. Male BSPP Adapter P/N: 85-025125-000 Use the adapter when connecting the Nitrogen pilot cylinder to the back-plate manifold hose. 1.11in 45/64" 1/4 BSPP 1/8 NPT Figure 7. Back-Plate Manifold Hose Table 8. Back-Plate Manifold Hose Part Numbers Part Number Description 85-025125-000...

  • Page 328: Spare Nema 7 Actuation Assembly

    2.1.5 Spare NEMA 7 Actuation Assembly P/N: 85-063724-XX0 If necessary, the NEMA 7 solenoid and actuation assembly on the selector valves can be replaced. Solenoid Specifications: – Operating Voltage: 24 VDC 10W – Current Draw: 0.187 Amps Figure 9. NEMA 7 Actuation Assembly Table 10.

  • Page 329: 108 Cu. In. Nitrogen Pilot Cylinders

    2.1.8 108 cu. in. Nitrogen Pilot Cylinders P/N: 85-877940-001 and 85-877940-002 Use the 108 cu. in. Nitrogen pilot cylinder to provide operating pressure for the selector valves. When activated by a control head, gas pressure is routed from the Nitrogen pilot cylinder to the pressure regulator connected to the selector valve solenoids via piping or a manifold.

  • Page 330: Mounting Bracket For 108 Cu. In. Nitrogen Pilot Cylinder

    2.1.9 Mounting Bracket for 108 cu. in. Nitrogen Pilot Cylinder P/N WK-877845-000 P/N WK-877845-000 is a steel mounting bracket used to secure the 108 cu. in. Nitrogen pilot cylinder (see Figure 3). The bracket includes the clamp to secure the cylinder. 4x Ø...

  • Page 331: Nitrogen Pilot Cylinder Supervisory Pressure Switch

    Note: See Table 4 for approvals. The Nitrogen pilot cylinder supervisory pressure switch is intended to detect a drop in pressure in the Kidde Fire Systems Nitrogen pilot cylinders (see Figure 2-49). Note: The Nitrogen pilot cylinder supervisory pressure switch differentiator is a blue colored band on both the box and switch (see Table 5).

  • Page 332: Supervisory Pressure Switch Differentiation

    2.1.10.1 Supervisory Pressure Switch Differentiation Kidde Fire Systems offers supervisory pressure switches for multiple products and product lines. When ordering and installing supervisory pressure switches, please select the appropriate switch. The switches have a colored band to help differentiate them.

  • Page 333: Lockout Valves

    Lockout Valves P/N: See Table 6 A lockout valve is a manually operated valve installed between the agent manifold and the discharge pipe to the protected area. Lockout valves are normally open, but can be locked in the closed position when maintenance is under way. This prevents agent from discharging into the protected area for the safety of the maintenance personnel.
  • Page 334 1 in. Lockout Valve, NEMA 4, P/N: 85-100210-101 4 in. Lockout Valve, NEMA 4, P/N: 85-400210-401 Figure 5. 1 and 4 inch Lockout Valve, NEMA 4 Table 7. NEMA 4 Lockout Valve Specifications Dimensions Thread Part Number Size Pressure Rating Type inches inches...
  • Page 335 1 in. Lockout Valve, NEMA 7, P/N: 85-100120-101 4 in. Lockout Valve, NEMA 7, P/N: 85-400120-401 Figure 6. 1 and 4 inch Lockout Valve, NEMA 7 Table 8. NEMA 7 Lockout Valve Specifications Dimensions Thread Part Number Size Pressure Rating Type inches inches...
  • Page 336 Figure 7. Lockout Valve Clearance Requirements Table 9. NEMA 4 Lockout Valve Clearance Requirements Dimensions Part Number Size inches inches inches 85-100210-101 1 in. 161.5 6 11/32 253.5 161.5 6 11/32 85-150210-151 1.5 in. 6 3/8 293.75 11 9/16 6 3/8 85-200210-201 2 in.

  • Page 337: Design Consideration

    DESIGN CONSIDERATION Selector Valves Standard EN12094-5 requires that selector valves be opened within a maximum time span of 3 seconds. Use the following rules for designing all selector valve systems: • 3-Way and 2-Way selector valves must not be mixed in a system. A system may use only 2-way or 3-way selector valves, not both.

  • Page 338: Install

    INSTALL 2- Way Selector Valves Note: Valves can be installed horizontally or vertically. Kidde Fire Systems recommends installing union fittings before and after the valves to facilitate future service work. 4.1.1 1-inch, 1 1/2-inch, and 2-inch Selector Valves Install the 1, 1 1/2, and 2 in. selector valves by following the steps listed below: 1.

  • Page 339: Installing The Nitrogen Pilot Cylinder With Supervisory Pressure Switch

    Installing the Nitrogen Pilot Cylinder with Supervisory Pressure Switch Note: Supervision of electric control heads is a requirement of NFPA 2001 The placement supervision signal is not a substitute for ensuring the proper interlock of the actuator plunger to the pilot check assembly. Make sure the WARNING control head is properly seated.
  • Page 340 SLOT FOR SAFETY BURST DISC OUTLET SAFETY BURST DISC OUTLET PORT Figure 11. Installation Isometric View Figure 10. Installation Side View Control Head Monitor Supervisory Pressure Switch Safety Burst Disc Outlet Port N2 Pilot Cylinder Figure 12. Control Head Monitor and Pilot Cylinder, Side View Slot for Safety Burst Disc Outlet (on Underside of Control Head Monitor) Supervisory Pressure Switch...

  • Page 341: Wiring The Control Head Monitor

    Ensure the control head is in the SET position (that is, the actuating pin is in the fully retracted and the arrow on the front is pointing to the SET position) before attaching the control head to the cylinder valve. Also, ensure the WARNING safety pin is installed and secured with a listed tamper seal.

  • Page 342: Connecting Nitrogen Pilot Cylinder To Pressure Regulator

    Connecting Nitrogen Pilot Cylinder to Pressure Regulator The pressure from a 108 cu. in. Nitrogen pilot cylinder must be reduced before being used to operate a selector valve. The pressure regulator is included with the back-plate manifold. For NEMA 7 solenoids, the pressure regulator must be purchased separately. Note: Use the 108 cu.

  • Page 343: Connecting Pressure Regulator To Nema 7 Selector Valve

    Connecting Pressure Regulator to NEMA 7 Selector Valve Follow these steps to connect the pressure regulator to the NEMA 7 selector valve: 1. Place the rubber bonded steel washer onto the outlet of the pressure regulator. Note: The rubber bonded steel washer may only be installed once. It cannot be reused after it has been removed.

  • Page 344: Lockout Valves

    Lockout Valves Note: Lockout valves are required when the agent concentration is at or above the LOAEL. The lockout valve with limit switch must be installed in the discharge pipe network, down- stream of all cylinders, check valves, and selector valves. All valves must be easily accessible. Lockout valves can be installed in either the vertical or horizontal position using good pipe fit- ting practices.

  • Page 345: Operation

    OPERATION Local Manual Operation of 2-Way Selector Valves with NEMA 4 Solenoids Manual control of selector valves is not part of normal system actuation and should only be used in an emergency. Ensure the hazard area is evacuated and emergency services are being called: 1.

  • Page 346: Lockout Valves

    Lockout Valves If applicable, it is recommended to lock-out the clean agent system when performing maintenance on the system or there is need to perform work that could cause false alarms and a discharge. Use the following steps to lockout the system: 1.

  • Page 347: Maintenance

    2. Replace/Refill the Nitrogen pilot cylinder. Should for any reason the unit fail to operate as intended or should there be any doubt about the opening/closing of the valve, contact Kidde Fire Systems. Never attempt to modify the actuator assembly (i.e. never open the actuator).

  • Page 348: Service: Replacing Nema 7 Actuation Assembly

    Service: Replacing NEMA 7 Actuation Assembly If the solenoid or actuation assembly becomes damaged on a NEMA 7 selector valve, it can be replaced with a new actuation assembly. Follow the steps below when replacing the actuation assembly. Figure 20. NEMA 7 Actuator Assembly Installation 1.

  • Page 349: Post Discharge Maintenance

    POST DISCHARGE MAINTENANCE All standard post discharge maintenance must be performed as outlined in the manual listed in Table 1. Additionally, all solenoids must be returned to their normal operating state. Resetting Selector Valves after Operation Note: Manual control of selector valves is not part of normal system actuation and should only be used in an emergency.
  • Page 350 Table 12. Selector Valve, Lockout Valve, and Associated Equipment Parts List (Continued) Description Part Number Nitrogen Pilot Cylinders and Mounting Equipment Factory Filled 108 cu. in. Nitrogen Pilot Cylinder 85-877940-001 Empty 108 cu. in. Nitrogen Pilot Cylinder 85-877940-002 1040 cu. in. Nitrogen Cylinder (Pilot, Siren Driver) Kit, Includes: •...
  • Page 352 KIDDE-FENWAL, INC. assumes no re- sponsibility for the product's suitability for a particular application. The fire suppression system design, installation, maintenance, service and troubleshooting must be performed by trained, authorized Kidde Fire Systems distributors 400 Main Street for the product to work correctly.

Table of Contents