Installation and Maintenance
June 2020 2-2 P/N 06-237620-001
2-3 AGENT STORAGE CYLINDERS
Agent storage cylinders are pressurized vessels containing the agent pressurized to 300
bar gauge at 15°C (4351 psig at 60°F) or 200 bar gauge at 15°C (2901 psig at 60°F). as
listed on the label. The pressure of the stored
Agent varies substantially with temperature changes, as illustrated by the temperature
verses pressure graphs shown previously for each Agent. When discharged, the Agent is
a gas and is uniformly distributed as it enters the fire area.
Handle the cylinder carefully to prevent damaging the gauge and other attached fixtures. The
cylinder must not be subjected to temperatures above 130°F (54°C), or the pressure relief
device may operate, releasing the agent.
2-4 INSTRUCTIONS IN CASE OF FIRE
2-4.1 Automatic Operation
When a system is operated automatically by means of a detection and control system,
everyone must evacuate the hazard area promptly upon hearing the pre-discharge alarm.
Make sure no one enters the hazard area. Call the fire department immediately.
2-4.2 Local Manual Operation (Single Area)
Manual control is not part of normal system actuation and should only be used in an emergency
as a last resort. Ensure the hazard area is evacuated and emergency services are being called.
1. Proceed to appropriate Natura IGS cylinder for the hazard.
2. Remove the safety pull pin from the cylinder release unit. This will also break the tamper
proof seal.
3. Operate the manual release knob in the direction indicated by the arrow on the unit.
Note: Allow no one to enter the hazard area. Call the fire department immediately.
2-4.3 Local Manual Operation (Multi Area System)
Manual control of selector valves is not part of normal system actuation and should only be
used in an emergency. Ensure the hazard area is evacuated and emergency services are being
called:
1. Proceed to appropriate Natura IGS selector valve for the hazard.
2. Remove the handle stored on the side of the selector valve.
Figure 2-1. Selector Valve Handle and Attachment Nut
3. Attach the handle to nut on the selector valve, and turn the valve open.
1. Proceed to appropriate Natura IGS master cylinder release unit for the hazard.
2. Remove the safety pull pin from the cylinder release unit. This will also break the tamper
proof seal.
3. Operate the manual release knob in the direction indicated by the arrow on the unit.
Note: Allow no one to enter the hazard area. Call the fire department immediately.
Handle
Handle Attachment Nut
Note: 1” Selector Valve Shown
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