Caterpillar TAURUS 70 - Manual (Page 52)

Turbomachinery Package Specification Taurus 70 Compressor Set and Mechanical Drive
12.3.7 CO
2
Fire Suppression System
The enclosure can be equipped with a CO
2
fire suppression system consisting of a
primary total flooding distribution system and a secondary metered distribution system to
extend the design concentration of 37% CO
2
for 20 minutes.
On fire detection by the optional fire and gas detection system, the detectors transmit an
electrical signal via the fire control panel to activate the fire suppression system release
solenoids located in the CO
2
fire suppression cylinder cabinets, Figure 22. On receipt of
this signal, the solenoid actuated control heads activate the CO
2
cylinders, releasing CO
2
into the enclosure. CO
2
pressure actuates the pressure trip operated dampers that close
all vent openings. CO
2
release control heads are also provided with manual release
levers.
12.3.8 Water Mist Fire Suppression System
The enclosure can be equipped with a water mist (fine water spray) fire suppression
system consisting of a high-pressure distribution system to provide approximately 10
minutes continuous water discharge. The typical water mist fire suppression cylinder
cabinet, Figure 23, consists of two high-pressure nitrogen cylinders used as a propellant
and five water bottles.
On detection of a fire by the optional fire and gas detection system, the fire control panel
activates the fire suppression system release solenoids located on the water mist
suppression skid. On receipt of this signal, the solenoid actuated control heads activate
the discharge valves on the water cylinders, releasing a water mist into the enclosure. A
pressure switch in the water mist discharge piping transmits an electrical signal to the fire
control panel to activate a release solenoid to close pressure-operated dampers on all
vent openings. The water mist nitrogen actuator valve is also provided with a manual
release lever.
12.3.9 Fire Cylinder Cabinets
When installed outdoors, weatherproof fire cylinder cabinets are available to house the
extinguishing agent. The cabinets are equipped with service doors. The manual pull
levers are routed by cable to the exterior wall of the cabinet.
Figure 22. Typical CO
2
Suppression Fire Cylinder Cabinets
© 2009 Solar Turbines Incorporated. All rights reserved. TPS70CSMD/309
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