Kidde Fire Systems Natura, Owner'S Manual

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Installation and Maintenance
June 2020 2-6 P/N 06-237620-001
2-7 WEEKLY
2-7.1 Check Natura IGS System Cylinder Pressure
Check the Natura IGS System cylinder pressure gauges for proper operating pressure (refer to
Section 1-4). If the pressure gauge indicates a pressure loss (adjusted for temperature) of
more than 5%, contact an Authorized Kidde Fire Systems Distributor to have the cylinder
replaced. Cylinders should have a pressure of either 300 bar gauge at 15°C (4351 psig at
59°F) or 200 bar gauge at 15°C (2901 psig at 59°F) depending on the pressure specified
on the label.
2-7.2 Check Nitrogen Pilot Cylinder Pressure
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%, contact an Authorized Kidde
Fire Systems Distributor to have the cylinder replaced.
2-7.3 Hazard and Enclosure Inspection
Visually inspect the hazard and the integrity of the enclosure for changes which may affect the
performance of the system as per the requirements of BS EN 14520-1 or NFPA 2001. If you
suspect changes, contact an Authorized Kidde Fire Systems Distributor to inspect the
enclosure.
2-7.4 Pipework and Controls Inspection
Visually inspect the pipework for damage and that all operating controls and components are
properly set and undamaged.
2-8 MONTHLY
In addition to performing the weekly inspection, perform the following procedures every
month:
2-8.1 Perform General Inspection
Make a general inspection survey of all cylinders and equipment for damaged or missing parts.
If the equipment requires replacement, contact an Authorized Kidde Fire Systems Distributor.
2-8.1.1 Inspect Discharge Nozzles
Inspect discharge nozzles for dirt and physical damage. if dirty or damaged, contact an
Authorized Kidde Fire Systems Distributor for repairs.
2-8.1.2 Inspect Pull Stations
Inspect all manual pull stations for cracks, broken or cracked glass plates, dirt or distortion.
Inspect the station for signs of physical damage. Contact an Authorized Kidde Fire Systems
Distributor if replacements or repairs are needed.
CAUTION
Nozzles must never be painted. A part number is located on each nozzle.
Nozzles must be replaced by nozzles of the same part number. Nozzles must
never be interchanged since random interchanging of nozzles could
adversely affect proper agent distribution and concentration within a
hazard area.