Operation
06-237619-001 5-1 April 2020
CHAPTER 5
OPERATION
5-1 INTRODUCTION
This chapter describes the controls or Kidde Fire Systems Inert Gas Engineered Fire
Suppression System (Kidde
®
IGS) using IG-100 or IG-55 (herein refer to collectively as the
“Agent”).
5-2 SYSTEM CONTROLS AND INDICATORS
5-2.1 General
Compressed gaseous Agent is held in the cylinder by a discharge valve. When the discharge
valve is actuated by a release unit, the compressed gas escapes through the discharge port of
the valve and is directed through the distribution piping to the nozzles. The nozzles provide the
proper flow rate and distribution of the Agent.
5-2.2 Operating Procedures
5-2.2.1 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.
5-2.2.2 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 Kidde 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.
5-2.2.3 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 Kidde IGS selector valve for the hazard.
2. Attach the handle to the selector valve, and turn the valve open.
1. Proceed to appropriate Kidde 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.
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