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PSP 604−6
BAGGAGE COMPARTMENT FIRE PROTECTION (CONT'D)
Smoke Detector Test
The baggage compartment smoke detector can be tested by the pushing in and holding the
SMK DET test button located on the ANNUNCIATOR panel.
Smoke Detector Test Button
Figure 09−10−8
LAVATORY FIRE PROTECTION
Description
Fire protection for the lavatory consists of an electronic smoke detector that interfaces with the
EICAS to provide aural and visual warnings, and an independent fire extinguisher that operates
automatically in the waste container.
Components and Operation
Smoke Detector
The aircraft is equipped with a smoke detection system in the lavatory. When the smoke density
reaches a predetermined level, the smoke detector produces a signal to the EICAS to alert the
crew and sounds an aural alarm in the lavatory. The lavatory smoke warning signal causes the
following aural and visual warnings to occur:
• SMOKE TOILET warning EICAS message is displayed
• MASTER WARNING switch/lights illuminate flashing
• “SMOKE” aural warning sounds
The aural warning can be silenced by pressing either MASTER WARNING switch/light.
However, the EICAS warning message will remain displayed until the unit resets itself.
Automatic Fire Extinguisher
In the event of a fire in the lavatory waste container, automatic fire extinguishing is provided.
The bottle is mounted on a bracket beside the waste container. Once the temperature reaches a
predetermined level, two heat-sensitive capsules melt and release Halon 1211 into the waste
container (individual aircraft installations may vary, consult Completion Center documentation
for aircraft-specific information).
FIRE PROTECTION
Description
Vol. 2 09−10−9
REV 66, Feb 01/07
CL−604 Operating Manual
PSP 604−6
GALLEY OVERHEAT PROTECTION (OPTIONAL)
Description
Overheat protection for the galley consists of an optional overheat detection system that interfaces
with the EICAS to provide aural and visual warnings.
Components and Operation
Galley Overheat Detector
When the temperature reaches a predetermined level, the overheat detector provides a signal to
the EICAS to alert the crew of a galley overheat. The galley overheat alert signal causes the
following aural and visual warnings to occur:
• GALLEY OVHT warning EICAS message is displayed
• MASTER WARNING switch/lights illuminate flashing
• A triple chime (warning) sounds
The aural warning can be silenced by pressing either MASTER WARNING switch/light.
However, the EICAS warning message will remain displayed until the unit resets itself.
PORTABLE FIRE EXTINGUISHERS
Description
Portable Halon 1211 fire extinguishers are provided in both the flight compartment and the cabin,
to fight a fire occurring inside the aircraft. Halon 1211 is effective in fighting Class A, B and C fires.
Components and Operation
Flight Compartment Fire Extinguisher
The flight compartment fire extinguisher is installed behind the copilot’s seat.
Discharging of the Halon is effected by squeezing a spring-loaded lever.
WARNING
IF A FIRE EXTINGUISHER IS TO BE DISCHARGED IN THE
FLIGHT COMPARTMENT, ALL FLIGHT CREW MUST WEAR
OXYGEN MASKS WITH EMERGENCY SELECTED (100%
OXYGEN).
CREW EXPOSURE TO HIGH LEVELS OF HALON VAPORS
MAY RESULT IN DIZZINESS, IMPAIRED COORDINATION, AND
REDUCED MENTAL SHARPNESS.
Cabin Fire Extinguisher
The cabin fire extinguisher is installed during completion, and its location may vary depending
on the interior configuration. Consult the aircraft Completion Center manual for the specific
location(s). Operation is identical to the Flight Compartment fire extinguisher.
FIRE PROTECTION
Description
Vol. 2 09−10−10
REV 66, Feb 01/07
CL−604 Operating Manual
PSP 604−6
MAIN LANDING GEAR BAY OVERHEAT DETECTION SYSTEM
Description
The main landing gear (MLG) is protected by a continuous-loop overheat detection system in each
wheel bin. The loops are monitored for resistance by the overheat detection control unit which,
through EICAS, provides aural and visual warnings of an overheat condition in the main wheel
bins.
Components and Operation
Heat-Sensing Elements
The main landing gear bay heat-sensing elements (loops) are installed around the top inner
surface of the main wheel bins. Operation is identical to the engine and APU fire-sensing
elements. The loops are connected to the MLG overheat detection control unit.
Main Landing Gear Bay Overheat Heat-Sensing Element
Figure 09−10−9
　
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