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WEEKLY MAINTENANCE :-

1. Verify that all control panel indicators and alarms are functional.
2. Visually inspect pump unit and its fittings.
3. Check the pump unit valve positions, if valves are not locked, as applicable.

MONTHLY MAINTENANCE :-

1. Verify all control, pump unit and section valves are in the proper open or closed position.
2. Verify sprinkler pressure tanks or other means have correct levels of water.
3. Test automatic starting arrangements on all system pumps so designed.
4. Verify that all standby pressure and air/gas pressure gauges are within the proper pressure ranges.
5. Test a selected sample of system section valves for flow and proper initiation of alarms (Note – The valves selected for testing should be chosen to ensure that all valves are tested within a one year period.)

QUARTERLY MAINTENANCE ( FOR WATER SPRINKLER ONLY ) :-

1.  Assess system water quality in the header tank and pump unit against the manufacturer’s water quality guidelines.

ANNUAL MAINTENANCE :-

1. Verify proper operation of all water mist, water-spray and sprinkler system using the test valves for each section.
2. Visually inspect all accessible components for proper condition.
3. Externally examine all high pressure cylinders for evidence of damage or corrosion.
4. Check the hydrostatic test date of all high pressure cylinders.
5. Functionally test all fixed system audible and visual alarms.
6. Flow test all pumps for proper pressure and capacity.
7. Test all antifreeze systems for adequate freeze protection.
8. Test all system cross connections to other sources of water supply for proper operation.
9. Verify all pump relief valves, if provided, are properly set.
10. Examine all filters/strainers to verify they are free of debris and contamination.
11. Verify that all control/section valves are in the correct position.
12. Blow dry compressed air or nitrogen through the discharge piping of dry pipe systems or otherwise confirm the pipe work and nozzles are clear of any obstructions. This may require the removal of nozzles, if applicable.
13. Test emergency power supply switchover, where applicable.
14. Visually inspect all sprinklers focusing in areas where sprinklers are subject to aggressive atmosphere (like saunas, spas, kitchen areas) and subject to physical damage (like luggage handling areas, gyms, play rooms, etc) so that all sprinklers are inspected within one year.
15. Sprinklers with obvious external damage, including paint, should be replaced.
16. Check for any changes that may affect the system such as obstructions by ventilation ducts, pipes, etc.
17. Test a minimum of one section in each open head water mist system by flowing water through the nozzle. The section tested should be chosen so that all sections are tested within a fiveyear period.

During basic testing, and extended testing when applicable, of automatic sprinkler
heads/nozzles as outlined above, water quality testing should be conducted in each corresponding piping section.

5 YEARLY MAINTENANCE (AT SHORE) :-

1. Flush all ro-ro deck deluge system piping with water, drain and purge with air.
2. Perform internal inspection of all control/section valves; water quality testing should beconducted in all corresponding piping section, if not previously tested within the last five year.
3. Check condition of any batteries, or renew in accordance with manufacturer’s recommendations.
4. For each section where the water is refilled after being drained or flushed, water quality should meet manufacturer’s guidelines.
5. Testing of the renewed water quality should be conducted and recorded as a new baseline reference to assist future water quality monitoring for each corresponding section.  (Water sprinkler system only)

10 YEARLY MAINTENANCE (AT SHORE) :-

Perform a hydrostatic test and internal examination for gas and water pressure cylinders according to flag Administration guidelines or, where these do not exist.