Eclipse 500 System Manual page 191

Section 8. Engines & Fire Protection Eclipse 5OO Systems Manual
FIRE DETECTION
Each engine contains a single temperature detector loop to detect an engine fire.
The left engine temperature sensor cable is monitored by the left ACS. The right ACS
monitors the right engine temperature sensor cable.
Figure 115. Fire Detection Loop
The ACS has two main fire detection functions. It gives an alert to the flight crew
within 5 seconds of overheat, by sensing changes in the electrical resistance on the
loop. It also monitors the fire detection system and gives an indication of the failure
of system integrity to the air crew. Should a fire loop experience a fault a L (R) FIRE
DETECTOR FAULT advisory message appears.
When the sensor cable is exposed to a temperature of 400°F (204°C) the instrument
panel red fire indicator will illuminate, an audible alarm will sound and a L (R) ENG
FIRE warning message appears.
The audible alarm is silenced by pressing the WARN/CAUTION button on the
Autopilot Control Panel. If the red fire indicator goes out after reducing thrust, it is
likely a bleed air leak has occurred and a fire condition is not present. If the red fire
indicator remains illuminated, a fire condition exists and the fire extinguishing system
should be activated
Copyright © — Eclipse Aviation Corporation
Version 2.0 April 2007
171