2-Operating and Main-tenance Manual for CO2 System_43404219

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/PERATING � -AINTENANCE -ANUALSee A

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Operation & Maintenance Manual - CO2 systems - no. 233515 - rev. 11/082

© 2008 Ajax-Chubb Brandbeveiliging B.V.

Alle rechten voorbehouden. Zonder schriftelijke toestemming van Ajax-Chubb Brandbeveiliging B.V. mag niets

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Hoewel bij deze uitgave de uiterste zorg is nagestreefd, kunnen fouten en onvolledigheden niet geheel worden

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directe of indirecte schade, ontstaan door of verband houdende met toepassing van door Ajax-Chubb Brandbe-

veiliging B.V. gepubliceerde uitgaven.

All rights reserved. No part of this document may be reproduced, stored in a database or retrieval system, or

published, in any form or in any way, electronically, mechanically, by print, photoprint, microfi lm or any other

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Though utmost care has been taken in the preparation of this document, no liability is accepted for any conse-

quence of use.

OPERATION & MAINTENANCE MANUAL

CO2

FIRE EXTINGUISHING SYSTEMS

ON BOARD OF SHIPS

ENGINEERED SYSTEMS

Mechanical operated

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3Operation & Maintenance Manual - CO2 systems - no. 233515 - rev. 11/08

Table of Contents

1 INTRODUCTION ..................................................................................................................................4

2 SYSTEM DESCRIPTION........................................................................................................................52.1 General ..................................................................................................................................................52.2 Fire-Extinguishing agent......................................................................................................................62.3 Cleanliness.............................................................................................................................................72.4 Other safety considerations .................................................................................................................7

3 OPERATION INSTRUCTIONS...............................................................................................................83.1 General ..................................................................................................................................................83.2 Mechanical operation...........................................................................................................................83.3 Emergency manual operation .............................................................................................................93.4 Post-fire operation.............................................................................................................................. 10

4 MAINTENANCE INSTRUCTIONS....................................................................................................... 114.1 General ................................................................................................................................................ 114.2 General maintenance ......................................................................................................................... 124.3 Weekly check ...................................................................................................................................... 124.4 Monthly check..................................................................................................................................... 124.5 Yearly survey check............................................................................................................................. 134.6 Five yearly check ................................................................................................................................. 14

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1 INTRODUCTION

This manual describes how to operate and maintain an Ajax-Chubb Brandbeveiliging B.V. mechanical ope-

rated CO2 fixed fire extinguishing system on board of a ship and is exclusively intended for the personnel

responsible for maintenance and operation of the CO2 fixed fire extinguishing system.

For details, design specifi cations, Materials Safety Data Sheets and drawings of the supplied system we refer

to the project related appendices.

IMPORTANT:

- The data incorporated in this manual are intended to stimulate a correct maintenance and operation of

the system. Therefore no binding conclusions regarding the functioning of the system can be derived

from this manual.

- The instructions given in this manual should be strictly observed by qualified personnel excluding all

other.

- Any modification of the system and/or accompanying documentation, without prior approval in writing

from Ajax-Chubb Brandbeveiliging B.V. (hereafter named Ajax) , will exempt Ajax from any responsibility

or liability for the functioning of the system.

The CO2 fixed fire extinguishing system is designed and tested by qualified personnel of Ajax in accordance

with one or more of the following inspection authorities:

- Solas consolidated edition 2004 Chapter II-2 Construction - “Fire protection, fire detection and fire

extinction” of the International Maritime Organisation (IMO).

- Regulations imposed by the Authority having Jurisdiction regarding specific hazards.

- FSS Code Resolution MSC. 98 (73) , 2007 Edition

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

Ajax-Chubb Brandbeveiliging B.V.

P.O.Box 94404, 1090 GK AMSTERDAM, The Netherlands

Tel.:+31(0)20-5909 500, Fax:+31(0)20-5909 599

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2 SYSTEM DESCRIPTION

2.1 General

The CO2 systems, as represented by Ajax Brandbeveiliging, are used to extinguish fi res in specifi c hazard

zones or equipment located where an electrically non-conductive agent is required, where agent clean-up

and down-time to equipment creates a problem.

As the fi re-suppressing effect is based on a certain concentration by volume of the agent, CO2 systems are

intended for use in enclosed areas.

Typical CO2 total fl ooding applications are:

- Separator rooms and other machinery spaces cat. A.

- Holds.

- Engine rooms.

- Pump rooms.

- Paint stores

- Ro-ro decks

CO2 systems are designed to be suitable for the following classes of fire:

Class A - Surface types: wood or other cellulose-type materials, only at the flame forming phase.

Class B - Flammable liquids.

Class C - Flammable gasses.

Class D - Energised electrical equipment.

For flammable gas applications, Class C, the gas supply must be closed prior to the extinguishing agent

release.

The agent may not be used to extinguish when the following materials are involved:

- Chemicals which release oxygen when heated.

- Re-active metals: sodium, potassium, magnesium, titanium, uranium, zirconium and plutonium.

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2.2 Fire-Extinguishing agent

CO2 is colourless, odourless and electrically non-conductive. The extinguishing principle of CO2 gas is based

on reducing the concentration of oxygen in the air to the point where combustion stops. In an atmosphere

where minimal 34 Vol.% CO2 is added, combustion can no longer be sustained and will consequently be

suffocated. The cooling principle of the CO2 is of subsidiary importance due to its limited specifi c heat con-

tends.

Unnecessary exposure to the agent or the decomposition products should be avoided, the use of person-

nel safety equipment like protective clothing, breathing protection, safety goggles and gloves is strongly

recommended. Provide for sufficient ventilation or adequate respiratory equipment.

Table: Physical Properties CO2

Chemical formula = CO2 (O=C=O)

Melting point = 56.6°C

Boiling point = 78.5°C

Molecular mass = 44,011 kg/kmol

Density (T=273 K / p=101325 Pa) = 1,977 kg/m3

Relation density CO2/air = 1,529

Critical temperature = 304K (31°C)

Critical pressure = 73,83 bar

Colour = Colourless gas

Scent = No warning mark

Self-ignition temperature = Not applicable

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2.3 Cleanliness

CO2 is clean, leaves no residue, thereby eliminating costly after-fi re clean-up and keeping expensive down-

time to a minimum. Most materials such as steel, stainless steel, aluminium, brass and other metals as well as

plastics, rubber and electronic components are unaffected by exposure to CO2.

2.4 Other safety considerations

The high pressure discharge of CO2 from the system nozzle(s) can create noise loud enough to be startling.

The high velocity discharge can be signifi cant enough to dislodge objects located directly in the discharge

path. Enough turbulence may be created in the enclosure to move unsecured paper and other light objects.

Direct contact with the vaporising agent being discharged from the nozzle(s) will have a chilling effect

on objects, and can cause frost-bite burns to the skin. The liquid phase vaporises rapidly when mixed with

air, and limits the chilling hazard to the immediate vicinity of the nozzle(s) . Although CO2 is colourless,

discharge into humid atmospheres may cause a reduction of visibility for a short time, due to fogging.

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3 OPERATION INSTRUCTIONS

3.1 General

CO2 gas is retained in the cylinder(s) by (a) discharge valve(s). When the discharge valve(s) is (are) activated

by the mechanical operating box or pull handle the gas discharges through the valve outlet(s) and is direc-

ted through the main valve and distribution piping to the nozzles. The nozzles provide the proper fl ow rate

and distribution of CO2 in the protected space.

3.2 Mechanical operation

In case of fire: proceed upon these instructions:

1) Open the door of the mechanical operating box or operating hatch, pre-alarm will sound and ventila-

tion will stop.

2) Ensure all personnel have vacated the protected space.

3) Check if ventilation has stopped.

4) Close all doors, vents and hatches.

5) Pull the pull handle in the mechanical operation box, if present, to open the main valve or open the

main valve manually behind the operating hatch/door behind the operating hatch.

6) Pull the pull handle in the mechanical operation box, if present, or the pull handle behind the opera-

ting hatch/door to activate the CO2 cylinders.

7) Check if the system is activated properly

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3.3 Emergency manual operation

In case of fire: proceed upon these instructions in case remote activation failed.

WARNING:

This local manual operation is no part of the standard activation procedure and should only be used if

mechanical operation has failed.

1) Ensure all personnel have vacated the protected space.

2) Check if the ventilation has stopped.

3) Close all doors, vents and hatches.

4) Open the main and/or section valve(s) concerned by hand / manual.

5) Pull the operating lever(s) on the cylinder valve(s) to open the required number of CO2 cylinder(s) .

6) Check if the system is activated properly.

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3.4 Post-fi re operation

Following activities have to be carried out by qualified personnel of

Ajax-Chubb Brandbeveiliging B.V. or comparable approved service agency.

- After a CO2 discharge the entire system has to be inspected for fire and/or other damage.

- The used CO2 cylinder(s) must be removed and recharged.

- After inspection damaged parts have to be replaced.

- Test the entire system for reliability.

- Check if system is operational.

WARNING

Before permitting anyone to enter the extinguishing zone, ventilate zonethoroughly or use self contained breathing apparatus.

Ensure fire is completely extinguished before ventilating the extinguishing zone.

Do not enter an extinguishing zone with an open flame or lighted cigarette.The possible presence of flammable vapours may cause re-ignition or explosion.

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4 MAINTENANCE INSTRUCTIONS

4.1 General

A regular program of systematic maintenance must be established for continuous, proper operation of

the CO2 system. The maintenance performed by the personnel responsible for handling the CO2 system is

limited to general inspection of the installation. The actual maintenance must be performed by qualifi ed

personnel of an approved service agency and exists of:

- Removing and installing the CO2 cylinder(s) .

- Weighing the CO2 cylinder(s) .

- Recharging the CO2 cylinder(s) with CO gas.

- Yearly check.

- Five-yearly check.

- Re-establishing the CO2 system back into operation after a discharge.

In case of maintenance:

- Make sure all personnel have vacated the protected space.

- Nobody is allowed to enter the protected space during maintenance.

- Ensure the system cannot be switched on unintentionally.

- Inform the persons involved.

WARNING

Danger of suffocation.

IMPORTANT

Following every inspection/check the extinguishing gas system must be reset in it’s operating condition. In

case of any unsolvable problem(s), please contact Ajax-Chubb Brandbeveiliging B.V..

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4.2 General maintenance

- Tighten loose fittings, hoses and parts.

- Cleaning:

- Remove dirt from metallic parts using a lint-free cloth moistened with dry-cleaning solvent.

- Dry parts with clean, dry, lint-free cloth or air blow dry.

- Remove corrosion with crocus cloth, never use sharp objects for cleaning.

- Wipe non-metallic parts with clean, dry lint-free cloth.

4.3 Weekly check

- Check the green plate on the cylinder valve(s). If it is not present, the burst disc has collapsed because

of a too high pressure in the cylinder. The CO2 cylinder is now empty, so it must be removed and

recharged.

- Check whether all operating parts are in their correct position.

- Visual inspection of the cylinder brackets and mountings.

- Check whether the pull wire is without tension (slack +/- 3mm).

- Ensure access to protected zone, mechanical operating box, operating hatch, discharge nozzles and

the cylinder(s) are unobstructed and that there are no obstructions to the operation of the equipment

or distribution of CO2.

- Check whether the manifold (high pressure part) is pressureless by reading the pressure gauge.

4.4 Monthly check

- Checks as mentioned in 4.3.

- Make a general inspection survey of cylinder(s) and equipment for damaged or missing parts.

- When opening the mechanical operating box, operating hatch, check if the alarm is switched on and

the ventilation is switched off in the protected space concerned.

- Inspect the mechanical operating box, operating hatch, for signs of mechanical damage, dirt or distor-

tion.

- After re-closing the box the alarm must switch off and the ventilation must be reset.

- Inspect cylinder valve for physical damage, deterioration, corrosion, distortion, cracks, dirt, and loose

couplings.

- Inspect CO2 cylinders and valve assembly for leakage, physical damage such as cracks, dents, distortion

and worn parts. Check burst disc and pressure gauge for damage.

- Inspect pressure switch(es) (if present) for deformations, cracks, dirt or other damage.

- Inspect CO2 cylinder brackets, straps, cradles, and mounting hardware for loose, damaged or broken

parts. Check cylinder brackets, straps, and associated parts for corrosion, oil, grease, grime, etc.

- Check the function of the main valve and/or section valves.

- Check the piping for any damage (notably in case of hold protection).

- Check the mechanical time delay unit (if present).

- Inspect discharge nozzles for dirt and physical damage.

NOTE

Nozzles must never be painted or moved. Nozzles must be replaced by nozzles of the same type and size.

Nozzles must never be interchanged since random interchanging of nozzles could adversely affect proper

CO2 distribution and concentration level within a protected zone.

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Carry out the following inspection only after notifying the personnel in the protected zone.

4.5 Yearly survey check

This inspection must be carried out by qualified personnel of Ajax Brandbeveiliging B.V., or comparable

approved service agency.


- Disconnect the hose(s) from the CO2 cylinder(s) and blind off the cylinder valve(s) .

- Inspect visual all rubber hoses used in CO2 system for damage. Replace hoses 10 years after production

date.

- Visual inspection of the whole system.

- Check the CO2 cylinder(s) for their correct filling weight by means of the level measurement and/or

weighing (max. weight loss 5%).

- Check the function of the mechanical activation of the main and/or section valve(s) by activating

according to operation instructions. Afterwards the main and/or section valve(s) shall be closed.

- Check the function of the mechanical activation of the cylinder valve(s). Afterwards the cylinder

valve(s) must be closed. The CO2 in the cylinder valve(s) can be released by carefully unscrewing the

protection cap(s) . Check the cylinder valve(s) for leakage.

- Check the hoses for ageing (cracks).

- Fill the manifold with a non-flammable gas (± 25 bar) from a test cylinder (main valve and/or section

valves are closed!) . Close and disconnect the test cylinder. Check thread connections on leakage, check

functioning of pressure gauge.

- Blow through the CO2 piping using the CO2 in the manifold or air with a pressure of min. 7 bar.

- Check delay time of mechanical time delay unit (if present).

- Reconnect hose(s) and cylinder(s) and check if the system is operational.

NOTE

Yearly checks and findings must be noted in ship’s log.

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4.6 Five yearly check

ATTENTION

This inspection must be carried out by qualified personnel of Ajax-Chubb Brandbeveiliging, or comparable

approved service agency, supervised by a Representative of the Authority having Jurisdiction ‘Scheepvaart-

inspectie’ for the Netherlands), e.g. a surveyor of the inspection agency.


- Check the alarm system of the fire extinguishing system.

- Check the smoke detection system (if present) see the supplied manual.

- Check the adjustment of the safety valve with the setting of the prescribed by the certified body.

- Check the tightness of the manifold with a non-flammable gas from a test cylinder (± 25 bar).

- Check the medium and low pressure part of the CO2 pipe system with a non-flammable gas from a

test cylinder (± 25 bar).

- Disconnect the pull wire from the CO2 cylinder battery and the main and/or section valves. Check for

physical damage.

- 5% of the number of cylinders present must be reapproved every 5 year1.

- Check report in accordance with model of inspection agency.

- Reconnect piping and cylinder(s) and check if the system is operational.

NOTE:

- Five-yearly checks and findings must be noted in ship’s log and in a

testing report in accordance with the model laid down by the authority

having jurisdiction, e.g. a surveyor of the inspection agency.

- The testing report will be drawn up and signed by the representative in

whose presence the survey was carried out.

- The testing report will be presented in two-fold to the authority having

jurisdiction, e.g. surveyor of the inspection agency.

1Re approval of cylinders can be subject to different regulations imposed by the flagstate authorities.

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IMPORTANT

- In case that any inspection of the CO2 cylinder(s) shows evidence of damage or corrosion, the cylin-

der shall be emptied, inspected internally and pressure-tested at the required pressure.

- Before pressure-testing or blowing through of the system with air or another appropriate gas, cer-

tain measures must be taken such as notifying the personnel in the protected area.

In case another gas then air has been used for testing, then the protected area has to be ventilated

thoroughly before allowing any personnel to enter the area.

- In case of major maintenance work in the protected area provisions shall be made that no CO2 can be

admitted into the room. These provisions are:

- Block the cylinder valve control head by fitting the safety pin.

- Disconnect the system piping from the CO2 cylinder(s) and install the safety cap on

the discharge outlet of the cylinder valve(s).

- Before putting the system back into operation it must be checked for correct func-

tioning.

- Fire-extinguishing with CO2 can only be successful when the system is activated as soon as possible

after fire detection.

ALERT AND ACCURATE ACTING IN CASE OF FIRE

IS THE BEST PROTECTION FOR PEOPLE AND PROPERTY

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2-Operating and Main-tenance Manual for CO2 System_43404219

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