1-1November 2002 06-235975-001
Kidde Gemini II System
CHAPTER 1
GENERAL INFORMATION
1-1 INTRODUCTION
This manual contains installation, configuration and opera-
tion instructions for the Kidde Gemini II System.
1-2 SYSTEM DESCRIPTION
The Kidde Gemini II is a versatile fire alarm/suppression
control system which can be used in a wide range of appli-
cationsfrom a minimal, stand-alone single-hazard to a
large, eight-hazard system with multiple display units. The
system is microprocessor-based to offer flexible, modular
fire alarm and hazard release for a wide variety of Class A
or B applications.
As a minimum, a one-hazard system is controlled by one
Main Control Panel. The system can be expanded by add-
ing up to seven Remote Hazard Units and up to 16 Remote
Display Units. An example UL system is shown in
Figure 1-1.
The Main Control Panel and each Remote Hazard Unit
controls its own releasing circuit. Each unit accepts inputs
from initiating (detecting) devices such as smoke detec-
tors, heat detectors, manual pull stations and waterflow
sensors. Based on pre-programmed instructionsand your
own configuration parametersoutputs are generated to
release agent or activate a sprinkler system, shutdown
equipment and annunciate alarms at the unit and external
panels. The agent release sequence can be interrupted from
an abort station which can be configured for one of four
abort modes.
The Main Control Panel monitors all units in the Kidde
Gemini II System and collects and displays system-wide
messages. A Remote Hazard Unit fitted with the optional
display can also display global (system wide) or local mes-
sages, depending on its configuration.
The Remote Display Unit does not itself monitor a hazard,
but displays messages and accepts manual release and
abort inputs which are then passed on to the Main Control
Panel or Remote Hazard Unit to which the Remote Display
Unit is assigned.
The units communicate over a RS-485 data highway which
is controlled and monitored by the Main Control Panel.
See Appendix F for special Canadian requirements.
1-3 HAZARD ANALYSIS
An analysis of the hazard to be protected must be performed
by a qualified fire protection specialist before the system
can be installed.
The following are some factors that must be considered in
determining the suitability of the Kidde Gemini II System
for each application.
What type of suppression system will be used?
The Kidde Gemini II System can provide actuation for
Halon, CO
2
, FM-200 and FE-13 clean agent systems,
the Kidde IND (Industrial Dry Chemical) System and
the WHDR Wet Chemical suppression system. The
system is also FM approved for Deluge & Pre-Action
Sprinkler Systems (see Paragraph 1-9 for more
information).
In what type of environment will the system be used?
The Kidde Gemini II System is suitable for use in con-
trolled environments, in a temperature range of 32°F
to 120°F (0°C to 49°C). The system must not be used
in hazardous locations, or Class I, II, or III atmospheres
as defined in NFPA Standard 70-500.
Is battery backup required?
The Kidde Gemini II System provides supervised bat-
tery backup within the enclosure. Backup batteries are
charged automatically and switch-over is automatic in
the event of power failure or brownout.
Is flexible discharge sequencing and control required?
The Kidde Gemini II System provides flexible, field-pro-
grammable control over the actuation and annuncia-
tion process. The system operation can be tailored in
the field using display panel and manual control but-
tons. Programming can be easily field-modified if re-
quirements change.
Is expandability a concern?
The Kidde Gemini II System provides for modular ex-
pansion of both monitor and actuation circuits. Adding
Remote Hazard and Remote Display Units is fast and
simple. The system can contain up to seven Remote
Hazard Units and up to 16 Remote Display Units.
1-4 MAIN CONTROL PANEL
The Main Control Panel (Figure 1-2) controls one hazard
block. It accepts inputs from initiating (detecting) devices
such as smoke detectors, heat detectors, manual pull sta-
tions, supervisory (diagnostic) circuits and waterflow sen-
To Next Page
Loading...
Need help?
General
