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FIDEEX
CONTROL
UNIT
The FIDEEX control unit receives signals from the MWW sensing elements and in turn sends information to the DAU. The DAU reports the status of the detection system to the IAC which signal the EICAS and audio control panel for warning conditions.
The main landing gear overheat detection system and fault conditions may be tested through the Electrical Management System (EMS) in the flight compartment (refer to the Fire Test in the ELECTRICAL SYSTEM Chapter). Test result messages are displayed on EICAS.
GF0910_021a
Rev 2A, Apr 11, 2005 Flight Crew Operating Manual Volume 2
FIRE PROTECTION
SMOKE DETECTION
The avionics bay has smoke detection as part of the baseline configuration The completion Centre Handbook provides the location/requirements for the closets, lavatories and baggage compartment optional smoke detectors.
Volume 2 Flight Crew Operating Manual Rev 2A, Apr 11, 2005
SMOKE DETECTION (CONT'D)
The FIDEEX control unit and the avionics system have built-in provisions for the smoke detectors located in the baggage compartment, lavatories, cabin closets and avionics bay. The smoke detectors are checked during power up and during pilot initiated test. The flight deck activates the following warning devices:
.
Flashing MASTER WARNING lights (glareshield).
.
Appropriate smoke warning message on EICAS.
.
Sounds the appropriate smoke warning voice message in the flight compartment.
Fire suppression for the baggage compartment, lavatories and cabin closets is provided via hand held portable fire extinguishers. Provisioning and certification of the smoke detectors and hand held extinguishers are the responsibility of the completion centre and are not further described in this Chapter.
Rev 3, Apr 25, 2005 Flight Crew Operating Manual Volume 2
PILOT INITIATED TEST
A Pilot Initiated Test (PIT) of the fire extinguishing system shall be commanded as part of the airplane pre.flight and can be carried out at any time during normal operation of the system.
EMS/CDU
To initiate the fire system test, press the “TEST”activation button on the EMS CDU. The commanded test signal is sent to the FIDEEX control unit. The crew initiated fire test consists of:
.
A test of all fire/overheat loops with all flight deck reporting active.
.
A smoke detector test of all installed smoke detectors.
When the “TEST”button on the EMS CDU is selected, the FIRE TEST is automatically highlighted on the SYSTEM TEST page.
To initiate the test, the right side button must be selected. Test will automatically terminate after approximately 15 seconds or can be aborted by a reselect of the FIRE TEST key.
A PIT is successful if each of the following events occur:
1. Both MASTER WARNING lights flash and an aural warning sounds.
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