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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.
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.
FIRE PROTECTION
Description
Vol. 2 09−10−10
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
MAIN LANDING GEAR BAY OVERHEAT DETECTION SYSTEM (CONT'D)
Components and Operation
Heat-Sensing Element
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
Overheat Detection Control Unit
The overheat detection control unit continuously monitors the loop resistance of the sensing
element (loop). When the electrical resistance decreases to the warning trip point, the unit
produces an overheat warning signal to the EICAS, which causes the following aural and visual
warnings to occur:
• MLG BAY OVHT warning EICAS message is displayed;
• MASTER WARNING switch/lights illuminate flashing; and
• “GEAR BAY OVERHEAT” aural warning sounds.
The overheat detection control unit can discriminate between an actual overheat and a false
overheat (i.e., short in the sensing element). In the event of a main landing gear overheat
detector failure, the MLG BAY OVHT FAIL caution EICAS message will be displayed.
FIRE PROTECTION
Description
Vol. 2 09−10−11
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
MAIN LANDING GEAR BAY OVERHEAT DETECTION SYSTEM (CONT'D)
MLG BAY Overheat Test
The MLG BAY overheat detection system can be tested from the LDG GEAR control panel,
located on the center forward pedestal. The OVHT test switch is used to verify the continuity of
the heat-sensing element, by simulating an overheat/fire condition. The FAIL test switch is used
to verify the ability of the detection control unit to discriminate between an actual overheat/fire
condition and false overheat/fire (shorted) loop.
LDG GEAR Control Panel
Figure 09−10−10
CONTROLS AND INDICATORS
General
The controls for the various fire protection systems are located on the glareshield; the systems
advisory, caution and warning messages are displayed on EICAS, and the test switches are
located on the Miscellaneous Test panel and LDG GEAR control panel.
FIRE PROTECTION
Description
Vol. 2 09−10−12
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
CONTROLS AND INDICATORS (CONT'D)
Engine and APU Fire/Overheat Protection
Glareshield Panels
Figure 09−10−11
FIRE PROTECTION
Description
Vol. 2 09−10−13
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
CONTROLS AND INDICATORS (CONT'D)
Fire Detection and FIREX Monitor Test
Miscellaneous Test Panel
Figure 09−10−12
MLG Bay Overheat Test
LDG GEAR Control Panel
Figure 09−10−13
FIRE PROTECTION
Description
Vol. 2 09−10−14
Oct 05/06
CL−605 Flight Crew Operating Manual
PSP 605−6
CONTROLS AND INDICATORS (CONT'D)
Baggage Smoke Detector Test
Miscellaneous Test Panel
Figure 09−10−14
EICAS MESSAGES
The fire and overheat protection system messages are shown on the EICAS page. The fire and
overheat protection system messages and aural warning are listed below. A brief explanation of each
　
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