Daily, 6 Monthly, 12

Monthly, Service

&

Maintenance

1

Regular servicing and maintenance of the fire suppression system is required to ensure that they operate efficiently and safely. However, it is recommended that servicing and maintenance is to be more frequent under harsh and adverse working conditions. Six (6) Monthly - Level One (1) Service 1. Ensure system is at correct operating pressure. If outside green operating zone, system needs a level five (5) service (recharge

after discharge). 2. Check safety pins & anti-tamper ties are fitted on remote actuators. 3. Ensure cylinders and brackets are secured and in working condition. 4. Test alarm panel for full operation if it is fitted. 5. Check nozzles for correct alignment. Remove any obstructions. 6. Remove, clean and weigh CO2 cartridges. Replace o-ring if required. 7. Flush water (or blow compressed air/nitrogen, using extreme care) through the ring main to make sure there are no

obstructions in the circuit and the dust caps blow off freely. 8. Lubricate nozzle o-ring with o-ring grease and re-fit nozzle dust caps. 9. Inspect all hose and pipe works signs of damage (mechanical or abrasive). Replace as required. 10. Replace any worn or damaged parts. 11. Check labels are fitted and easily visible. 12. Stamp service tag #1. 13. Document service details. Supply a copy to the equipment owner/client and file a copy for future reference. 14. On completion of the service the LOCKOUT officer / staff member, needs to do a final walk around and check of all

connections, hoses and service points for a final check before the reinstating of the system serviceability.

2

Twelve (12) Monthly 1. Carry out a visual inspection of entire foam spray system. Take notes of worn or damaged components. 2. Perform discharge test. 3. Check spray pattern of the nozzles covers general risk area. 4. After discharge test has been performed, ensure that the system is fully degassed. 5. Ensure dust caps can be removed easily. 6. Inspect detection tube for signs of degradation and damage. Replace as required. 7. Remove and weigh CO2 Cartridges. Replace cartridges and o-ring as required. 8. Disassemble remote actuators and remove spindles. 9. Make sure o-ring grooves on the remote spindles are clean before fitment of o-rings. 10. Replace o-rings (QT010) in remote spindles. 11. Lubricate o-rings with appropriate o-ring grease. 12. Re-fit spindles to remote actuators. Check that spindles move freely within the body. 13. Reassemble remote actuators. 14. Re-fit CO2 cartridge if correct weight has been established or fit new CO2 cartridge if required. 15. Remove ROP valve from cylinder. 16. Inspect siphon tube for damage, degradation or wear. Replace if required. 17. Check cylinder manufacturing date to identify if hydrostatic testing is required. 18. Disassemble ROP valve and clean all parts to remove debris, dirt and grease. 19. Replace and lubricate o-rings with appropriate o-ring grease. 20. Reassemble ROP valve and ensure that that Valve Stem Assembly moves freely and seats correctly in ROP valve.. 21. Re-fit ROP valve to cylinder. 22. Check that the relief valve is fitted to the fill plug and moves freely. 23. Service LPRM if fitted. 24. Fill and charge system. 25. Carry out a leak test. 26. Fit anti-tamper ties and stamp service tag. Install tag if required. 27. On completion of the service the LOCKOUT officer / staff member, needs to do a final walk around and check of all

connections, hoses and service points for a final check before the reinstating of the system serviceability.

3

Linear Pressure Release Module Six (6) monthly 1. Check pressure gauge is at correct operating pressure of between 1,000 kPa and 1,200 kPa. 2. Check LPRM unit for damage. 3. Make sure LPRM is secured in the bracket. 4. Inspect connecting hoses for obvious damage and/or loose connections. Replace if required. 5. Check all hoses are correctly fitted. 6. Ensure check valve is correctly fitted to ROP valve. 7. Check cylinder is within its service life. Replace if required. 8. On completion of the service the LOCKOUT officer / staff member, needs to do a final walk around and check of all

connections, hoses and service points for a final check before the reinstating of the system serviceability. Twelve (12) Monthly 1. Carry out procedures as per six (6) monthly inspection. 2. Remove discharge hose from LPRM unit. 3. Discharge LPRM unit and ensure all gas is expelled. 4. Inspect detection tube for signs degradation and damage and replace. 5. Disassemble LPRM unit and clean all parts to remove debris, dirt and grease. 6. Replace and lubricate o-rings with appropriate o-ring grease. 7. Check condition of nylon ball, replace if required. DO NOT Lubricate. 8. Refit piston. Ensure it moves freely and seats correctly within bore of LPRM valve body. 9. Reassemble LPRM unit and re-fit the LPRM valve to its cylinder. 10. Ensure LPRM and cylinder is fitted securely in its mounting bracket. 11. Reconnect all hoses that were removed and ensure they are tight. 12. Recharge the LPRM unit. 13. Leak test the LPRM and detection circuit for leaks. 14. If no leaks found, connect the hose to the discharge nipple. 15. On completion of the service the LOCKOUT officer / staff member, needs to do a final walk around and check of all

connections, hoses and service points for a final check before the reinstating of the system serviceability. 4

5

TESTING: of the suppression system is required to be completed to ensure the system is fully operational without any faults after Servicing. Detection and Actuation Circuit Leak test the actuation circuit after the system has been serviced.

1. Disconnect the actuation hose from the check valve located on the ROP valve.

2. Disconnect remote actuator hose and connect it to nitrogen regulator.

3. Clear any debris and obstructions from the line by discharging a small mount of nitrogen through the hose.

4. Leave hose off at the actuation point at this stage.

5. Connect pressure gauge to the end of the cylinder hose and charge to ,1350kPa.

6. Check all hose and fittings with snoop or similar leak testing solution or product.

7. Leaks detected at this stage are more easily rectified than when the system is in service.

8. Shut off the nitrogen supply and degas the hose.

9. Repeats steps 1, to 6 for each remote actuator.

10. After all the circuits have been checked, connect the nitrogen regulator to the actuation hose at the bottle and charge with nitrogen.

11. This test will check the integrity of the check valves in the manifold.

12. Once all checks have been completed, re-connect each actuation point and tighten all hoses.

6

Linear Pressure Release Module (LPRM)- Leak test the LPRM unit before it is connected to the system. 1. Disconnect hose from discharge nipple. Connect plug to end of the hose to stop the ingress of foreign

material. 2. Using nitrogen gas, charge LPRM unit to between 1,000kPa to 1,200kPa via Schrader valve. 3. Using Snoop or similar products, check for leaks in LPRM unit, connecting detection hose and tube

network. Note: Make sure the discharge nipple is not pointed in a dangerous position during the test discharge and perform the discharge test as follows: 1. Actuate the LPRM valve by depressing the core of the Schrader valve. 2. Make sure all the nitrogen gas is expelled from the LPRM unit. 3. Recharge the unit to between 1,000kPa to 1,200kPa via the Schrader valve. Discharge Test - A discharge test must be performed to ensure that the system is operational within the limits of the design parameters. 1. Activate system discharge via one of the remote actuators. 2. Record discharge time. 3. Check spray pattern and coverage is acceptable in risk area.

7

PRESSURE SWITCH: Check that the pressure switches are functioning correctly, it is best to verify each individually: 1. Disconnect the pressure switch at the ROP valve. Only the “SYSTEM FAULT” LED should illuminate.

(Using a multi meter check the correct contacts are closed)

2. Reconnect the pressure switch to the ROP valve.

3. Reset the alarm.

4. Disconnect the pressure at the manifold. The “FIRE ALARM” and “SYSTEM DISCHARGE” LED

should illuminate. (Using a multi meter check the correct contacts are closed)

5. Reconnect the pressure switch to the manifold.

6. Reset the alarm.

7. Disconnect pressure switch at the LPRM unit (if connected). Only the “SYSTEM FAULT” LED should

illuminate. (Using a multi meter check the correct contacts are closed)

8. Reconnect the pressure switch to the LPRM unit.

9. Reset the alarm.

8

RECHARGING PROCEDURES:

1. Fill cylinder with required potable water and AFFF agent.

2. Fit the fill plug and tighten securely.

3. Release trapped gases in the ROP valve via the Schrader valve.

4. This is to ensure the ROP valve piston is seated correctly and stops accidental discharge.

5. Charge the system via the lower Schrader valve in the ROP valve .

6. Charge the system with nitrogen to the working pressure between 1,350 kPa to 1,500 kPa.

7. Allow time for the pressure in the cylinder to settle.

8. Once the pressure has settled, recheck the pressure gauge and add more nitrogen if required.

9. Check ROP valve and fill plug for leaks using snoop or other leak test solution

LPRM: To charge the LPRM:

Using a low pressure nitrogen cylinder and 4,000kPa nitrogen regulator, set the outlet pressure of the regulator to approximately 2,000kPa.

1. Connect the regulator to the Schrader valve on the LPRM unit.

2. Charge the LPRM unit between 1,000kPa and 1,200kPa.

3. After pressure settles, add more pressure if required.

9

Recharging LPRM after System Discharge: After a system discharge, nitrogen gas will remain trapped in the hose connecting the LPRM to the AFFF discharge valve.

1. Slowly crack open the outlet nipple hose on the LPRM to vent the trapped nitrogen gas.

2. Once the liquid filled gauge reads zero (0 KPa), the hose can be fully disconnected.

3. Diagnose and rectify the cause of the system discharge.

4. After rectification, recharge the system.

10

Daily Inspection

1. Inspect pressure gauge to ensure that the system is at correct operating pressure. If outside the Green operating zone, then

the system needs a level five (5) service (recharge after discharge).

2. Check that the remote actuators are not damaged and are in serviceable condition.

3. Ensure that the remote actuators have safety pins and anti-tamper ties fitted.

4. Carry out a visual inspection of system to check that there is no obvious damage or loose fittings.

5. Ensure cylinder(s) and bracket(s) are properly secured and in working order.

6. Test alarm panel for full operation if it is fitted. Refer to section 8.3.

Six (6) Monthly

1. Carry out checks and inspection as per the daily inspections.

2. Check nozzles for correct alignment and remove any obstructions.

3. Check cylinder and other labels are fitted and easily visible.

4. Flush water (or blow compressed air/nitrogen, using extreme care) through the ring main to make sure there are no

obstructions in the circuit and the dust caps blow of freely."

5. Lubricate nozzle o-rings with Molykote 111 o-ring grease and re-fit dust caps onto the nozzles."

6. Inspect all hose and pipe works for any signs of damage (mechanical or abrasive).

7. Replace any worn or damaged parts.

8. Install service tag if required. Stamp service tag #1.

9. On completion of the service the LOCKOUT officer / staff member, needs to do a final walk around and check of all

connections, hoses and service points for a final check before the reinstating of the system serviceability.

11

Twelve (12) Monthly

1. Carry out a visual inspection of entire foam spray system taking note of any worn or damaged components. Replace all

damaged and worn parts.

2. Perform a discharge test by activating the system via a remote actuation point. Record discharge time.

3. Inspect the spray pattern to ensure it has appropriate coverage in the hazard areas identified (based on nozzle placement

and general area of risk).

4. Ensure that the dust caps blow off all nozzles.

5. Inspect detection tube for signs deterioration and replace.

6. After discharge test (refer to Section 8.2) has been performed ensure that the system is fully degassed.

7. Remove the remote actuator spindle from the remote body.

8. Make sure that the filter and remote actuator body are free from debris.

9. Replace o-rings (2 x QT012, 1x QT010) in remote spindle(s) making sure o-ring

10. Lubricate o-rings with appropriate lubrication (Molykote 111).

11. Re-fit spindle to remote body.

12. Check that the spindle(s) moves freely within the remote body.

13. Flush fresh water through the nozzles to remove all traces of foam agent, flush the foam off the equipment as well.

14. Lubricate NEW plastic nozzle dust caps, or nozzle o-rings with Molykote 111 o-ring grease and re-fit dust caps onto the

nozzles.

15. Check cylinder manufacturing date (or last pressure test date) to identify if hydrostatic testing is required. Ensure the

cylinder is not damaged/dented.

12

1. Remove cylinder LOP valve from the cylinder.

2. Inspect siphon tube. Replace if collapsed, bulges, kinked, incorrect length, has holes, or is loose on the hose barb.

3. Disassemble cylinder LOP valve, remove all o-rings and clean all parts.

4. Replace all o-rings, lubricate with appropriate lubrication such as Molykote 111.

5. Ensure that the o-ring grooves are free from debris.

6. Check the nylon ball and replace if required. DO NOT LUBRICATE.

7. Reassemble LOP valve, and siphon tube."

8. Check that the piston moves freely and seats properly.

9. Re-fit LOP valve to cylinder.

10. Check that the relief valve fitted to the fill plug moves freely.

11. Using relevant solvents clean the Silencer to remove any debris.

12. Carry out a leak test.

13. Fill and charge system to the correct level as per Section 9.

14. Fit anti-tamper ties to remote activation modules. Install service tag if required. Stamp service tag #2.

15. On completion of the service the LOCKOUT officer / staff member, needs to do a final walk around and check of

all connections, hoses and service points for a final check before the reinstating of the system serviceability.

13

TESTING: of the suppression system is required to be completed to ensure the system is fully operational without any faults after Servicing. Detection and Actuation Circuit Leak test the actuation circuit after the system has been serviced.

1. Disconnect actuation hose from the nipple located on top of the LOP valve.

2. Disconnect remote actuator hose and connect to nitrogen regulator.

3. Clear any debris and obstructions from the line by discharging a small amount of nitrogen through hose.

4. Re-connect remote actuator hose ready for further testing.

5. Repeats steps 2 to 4 for each actuation and detection points.

6. Connect test gauge to the end of the actuation hose that was disconnected in Step 1.

7. Charge the complete actuation and detection circuit via Schrader valve on external remote actuator.

8. Test gauge should be pressurized to 1,350kPa.

9. Check all hose and fittings with snoop or similar leak testing solution or product.

10. Once the circuit has been tested, degas the circuit by depressing the core of Schrader valve.

Leaks detected at this stage are more easily rectified than when the system is in service.

14

Discharge Test A discharge test must be performed to ensure that the system is operational within the limits of the design parameters.

1. Activate system discharge via one of the remote actuators.

2. Record discharge time.

3. Check spray pattern and coverage is acceptable in risk area.

RECHARGING Recharging of the cylinder and the VDAS LOP System is required after a system discharge, commissioning or after a 12 monthly service. Follow the instructions below to recharge the system:

1. After completing the leak test, fill the cylinder with the AFFF extinguishing solution.

2. Fit the fill plug and tighten securely.

3. Charge the system via one of the Schrader valve in the system.

4. Pressurize the system with nitrogen gas to 1,350kPa.

5. Allow time for the pressure in the cylinder and actuation circuit to settle.

6. Once the pressure has settled, recheck the pressure gauge and top up pressure if required.

7. Check LOP valve and fill plug for leaks using snoop or other leak test solution.

15

Alarm Panel: Test the alarm panel by: 1. Pressing and holding the red “TEST” switch for approximately five seconds until the alarms activate.

2. Release switch when test commences.

3. During test, “FIRE ALARM”, “SYSTEM DISCHARGE”, “SYSTEM FAULT” and “SYSTEM ISOLATED” LED’s will all illuminate together with a continuous audible indication.

4. Test will also commence engine shutdown time delay period, at the end of which engine shutdown relay will energise and “ENGINE SHUTDOWN” LED will illuminate.

5. External alarm relay will also be energised.

6. During test, engine shutdown may be delayed (Refer to FIRE ALARM Section) and the selected delay period verified.

7. Test is complete when audible indication changes to post alarm.

The panel may now be reset by momentarily pressing the “TEST” switch. Only the green “ON” LED should now be illuminated.