CO2 System Manual

5/23/2018 CO2 System Manual

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J.J. Sietas KGContainer Schiff

CO2SYSTEM AND SMOKE DETECTIONHull No: lI93TW/WM Reference: WM 150 358SYSTEM

OPE,RATING AND MANTAINANCE, MANIJALBEDIENTING S - TIND INSTANDHALTLINGS -ANLEITTJNG

TOTAL WALTHER GmbHFeuerschutz und Sicherheit

Marine DepartmentRudolf-Diesel-Str. 424568 Kaltenkirchen

Telephone: 0049 4191 505 0Facsimile No: 0049 4191 505 83

in co-operation with :

WORMALD INTE,RNATIONAL MAzuNEWORMALD PARKGRIMSHAW LANENEWTON HEATHMANCHESTER

M40 2WLTelephone: 0l6l 455 4400

Facsimile No: 0161 455 4452Telex: 665690 WRMLD G


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LIST OF CONTENTS1. INTRODUCTION ,................. 11.1 General .......... 11.2. Caution ,.............. 11.3 General Description of Types of Equipment............ ........... 12. INSTRUCTIONS FOR USE ..................92.1 General ..........9

2.2 Effectiveness of a COe-Fire Extinguishing lnstallation........... ............. g2.3 Actuation.. ......32.4 After Discharging the System .......... g2.5 Release Mechanism Parts ......,.......42.6 Contents of Control Cylinders ..........42.7 Distribution Valve ...........42.8 Control Station ...............42.9 Nozzles ..........42.10 Newly Filled Steel Cylinders ......... ...................43. MAINTENANCE .................. sPeriodical lnspections .............. ................ s3.1 Monthly - Visual lnspection - (Crew)... ............ 53.2 Half-yearly - Functional Testing - (Crew) .......... 53.3 Annually... ......53.4 tslowing through of the CO2 System............. ..................... 5After the pipes have been blown through and checked............ ................... 64. REMOVAL AND RE-INSTALLAT|ON OF CO2 CYL|NDERS ..................74.1 lnstructions for Removal of Cylinders with Lever Valves...... ..............74.2 lnstructions for Re-installation of Cylinders with Lever Valves ............ B

ATTENTION: ............ .................. I


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1. lntroduction1.1 GeneralC02-gas (carbon dioxide), which is used with this equipment as a fire extinguishingagent, has a smothering effect.COz is colourless and odourless. lf it is released under pressure, it resembles acloud of steam. When breathed in it causes a tickling sensation in the nose and thethroat and slight pressure on the chest (lungs). lt is electrically non-conducting, isnot corrosive, and is harmless to all kinds of objects. Although it is heavier than air,it can very easily be mixed with air and be disposed of by ventilation.COz is stored in liquid form in steel cylinders or insulated cooled tanks under con-stant pressure, the containers being made according to appropriate specifications.The pressure in the cylinders is dependent on the temperature, between 0' and 45'between 34 and 125 bars.To avoid unacceptable pressure increases in the CO2 containers, burst-plates orsafety valves are fitted; they blow out when maximum pressure for the contents ofthe container is reached.

1.2. Cautionln spaces which have been flooded with CO2, there is no longer a sufficient oxygencontent for breathing. Before entry, such spaces must be thoroughly aired. Onlyafter thorough airing and sampling of the air with a low-level gas detector apparatusequipped with COz measurement tubes (the COz concentration must not exceed5 %) should the room be entered.Should it be necessary to go into spaces which have been saturated with COz, thenthis should only be done with breathing equipment which is independent of the im-mediate environment (air-pressure or breathing tube equipment). A gas mask (filterequipment) is not adequate.1.3 General Description of Types of EquipmentCOz-Fire Exinguishing Appliances generally consist of a bank of high-pressuresteel cylinders or a low pressure tank, filled with the necessary amount of COz,housed in a separate space, and connected to a tube system which ends in spraynozzles.


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The COe quantity stocked is dependent on the size of the area to be protectecl andthe necessary concentration, which is determined by the type of f ire-risk.Activation of the system will be exclusively manually at release stations which areequipped with an automatic alarm equipment.After activation of the release equipment the carbonic acid flows through the distri-bution network and is evenly distributed in the area where extinguishing is required,through the nozzles installed there.The supply of extinguishing agent is generally such that the appliance can only beused for extinguishing in that area.

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2. lnstructions for Use2.1 GeneralFire Extinguishing lnstallations are installations for the protection of people and va-luables. They should therefore be protected from any damage and always be keptin readiness for use by regular servicing.Escape routes and access to the operating stations should always be kept clear.Care should always be taken that only authorized persons who are familiar with thedangers, the correct working and activation of the equipment should handle or acti-vate the system.Practice alarms at irregular intervals will supporl this policy.2.2 Effectiveness of a CO2-Fire Extinguishing InstallationThe effectiveness of a CO2-Fire Extinguishing System is heavily dependent onbeing used at an early stage on the hearth of the fireWarning: When a fire is detected staff must be immediately alarmed andevacuated before the system may be released.2.3 ActuationThe necessary instructions for activation of the system must be included on signsand notice-boards at or in the vicinity of the release point.2.4 After Discharging the SystemWarning:

Warning:

Do not enter the area which has been flooded with coe Danger ofsuffocationln areas whei'e the creation of embers is likely (e.g. cargo hords),all openings of the space afire should be kept close for a rengthyperiod after the CO2 slstem has been released. Before airing,make certain that the fire is completely extinguished. Before anyo-ne is allowed to enter the area, it is to be thoroughly aired. lf aspace must be entered before airing, be sure that breathingequipment which operates independently of its immediate envi-ronment (see 1.2) is used.

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After than: Arrange the immediate re-filling of CO2 cylinders in a filling station.This makes it necessary that the empty cylinders must be sent tothe filling station.When filling make sure that:CO2 cylinders should always be re-filled with anhydrous carbonicacid.

2.5 Release Mechanism PartsReplace and examine all release mechanism parts.

2.6 Contents of Control CylindersExamine the contents of the control cylinders - where such exist. Refill if not filledat 100 %.2.7 Distribution ValveClose off the valve of the appropriate supply pipe.

2.8 Control StationClose and lock the door of the control .station.2.9 NozzlesExamine all nozzles, to ensure they are f ree of dirt, metal particles or ice.2.10 Newly Filled Steel CylindersRe-install the newly f illed steel cylinders (see Maintenance).

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3. MaintenanceP e riodi c al I n spections

The TOTAL-WALTHER CO2 Fire Extinguishing System requires a minimumof servicing. Of course the individual parts should be kept clean and ready foruse, and the release mechanism should be kept easily accessible.

3.1 Monthly - Visual Inspection - (Crew)Examine all piping for mechanical damage and check the remaining installationsare in correct working order.

3.2 Half-yearly - Functional Testing - (Crew)By opening door(s) at release point(s) activate the alarm in the appropriate areas tobe protected. Ensure that all alarm equipment is working.Check drainage in COz pipes for possible water residues. Dry out if necessary.Operational test of distribution valves (manual only). Close the valves immediately.Do not open any valves in the pilot gas line.

3.3 AnnuallyHave equipment checked by authorized specialist firm, including checking of cylin-der contents.

3,4 Blowing through of the CO2SystemBlow through the piping network with dry compressed air, so that any impurities(headlock water, dust, and the like) are removed. Use the compressed air connec-tion available in the COz area for blowing through.Caution: Water or oxygen must in no circumstances be used for blow-through of the piping. ln particular the use of o>:ygen is very dan-

gerous (fire risk).Before blowing through break off the connection between the pilot line and the ma-nifold.Do not open the distribution valve yet.

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The system is now to be tested up to the distribution valve for airtightness. Then byopening the distribution valve, blow through the downstream pipes and nozzles andcheck for free expulsion of air.After the pipes have been blown through and checked:1. Shut-off the compressed air intake.2. Check that there is no pressure in the CO2 pipe system.3. Close the distribution valve.4. Reconnect the pilot line wih the manifold.5. Check carefully that all connections of the pilot line are safely tightened.

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4. Removal and Re-lnstallation of CO2 CylindersWarning: The COz cylinders are vessels with an internal high pressure up to120 bars.For the removal of a cylinder, the following sequence must be strictly adhered to:The lever of the valve of a cylinder not discharged must not be moved, as otherwi-se COz will rush out and may cause injuries to personal.4.1 Instructions for Removal of cylinders with Lever varves1. lf a cylinder, equipped with quick-opening valve, or cylinder bank is re-leased, the valve lever(s) is/are to be brought to its/their normal position.

2. The valve lever(s) and the operating piston(s) must be unscrewed fromthe cylinder valve(s).3. Loosen the coupling nuts of the hose or copper tube assy and unscrewthe nut of the connection to the valve outlet. Swing hose or tube assybackwards.4. At systems with hoses only:

ln doing this, care must be taken that the seal is not lost. Take good ca-re of the seal until re-assembly.5. Screw safety cap to the valve ouilet connection.6. Take the CO2 cylinder out of the bracket and mark its location on cylin-der.7. Screw the bottle cap on to the bottle-neck thread.

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4.2 lnstructions for Re-installation of cylinders with Lever valves1. Remove cylinder cap.Caution: Ensure that the safety cap is on the valve outlet. lf necessa-ry, screw on a cap.

2. lnstall the COz cylinder at its original location.3. Turn the bottle in such a way that the valve outlet is pointing in the di-rection for connection and secure the cylinder using the brackets.4. Unscrew safety cap from valve outlet,5. Screw coupling nut of the copper tube assy or hose on to the cylindervalve outlet (do not forget send a hose) and tighten caref ully.6. Tighten upper coupling nut of copper tube assy or hose.7. Tighten the cylinder brackets.8. Assemble the operating piston to the valve.9. lnstallthe valve lever but prevent activation of valve.10. Test the relcase connection is correcily connected.

Caution: Danger of release

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Attention:

The flexible hoses installed in the CO2 slstem (discharge hoses and pilot loops)are type approved by classification societies.The lifetime of such hoses is limited, caused by changing of environmental conditi-ons as temperatures, humidity, salt, etc. As such conditions differ from vessel tovessel and from different areas of operation, it is impossible to set a maximum life-time.Therefore it is important to do regularily visual inspection of the hoses (2 times peryea0.ln case that any swellings, mechanical damage, contin. bends, corrosion at themetal fittings, etc. are detected at any hose (see DIN 20066), the vessel's mastermust decide about a replacement of the hoses.Experts reported that it might be necessary to replace hoses after a service of lessthan 6 years.As the function of the system and safety of crew and vessel are depending on ho-ses being in good condition, it must be verified that such visual inspection will beperformed every 6 months.

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CO2 System Manual

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