-
two SMOKE/DISCH indication lights 11WH and 12WH (both DISCH lamps come on when the contacts of the bottle pressure switch open),
-a TEST pushbutton switch 13WH.
The Smoke Detection Control Unit (SDCU) 10WQ continuously monitors the
bottle pressure condition, the two cartridges and the wiring. If faults
occur they will appear on the ECAM upper display unit. The faults are
also transmitted to the Centralized Fault Display System (CFDS) (Ref.
31-32-00).
R **ON A/C 106-149, 301-399, 401-499,
R **ON A/C 106-149, 401-499,
(Ref. Fig. 002)
R 1EFF : 004-049, 051-099, 101-149, 151-199, 1 26-23-00Page 2 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1
Fire Extinguishing Bottle
Figure 001
R 1EFF : 004-049, 051-099, 101-149, 151-199, 1 26-23-00Page 3 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1
Functional Diagram
Figure 002
R 1EFF : 004-049, 051-099, 101-149, 151-199, 1 26-23-00Page 4 1201-299, 401-499, 1Aug 01/05 1 1 1CES 1 **ON A/C 301-399,
(Ref. Fig. 002A)
R **ON A/C 106-149, 301-399, 401-499,
The controls and indications are on the cargo smoke overhead-panel 22VU and the ECAM upper display unit. The overhead panel 22VU has:
-
two guarded DISCH pushbutton switches 3WX and 4WX (one for the FWD and one for the AFT cargo-compartment),
-
two SMOKE/DISCH indication lights 11WH and 12WH (both DISCH lamps come on when the contacts of the bottle pressure switch open),
-a TEST pushbutton switch 13WH. The Smoke Detection Functions within the CIDS Directors (CIDS-SDF) 101RH and 102RH continuously monitor the bottle pressure condition, the two cartridges and the wiring. If faults occur they will appear on the ECAM upper display unit. The faults are also transmitted to the Centralized Fault Display System (CFDS) (Ref. 31-32-00).
B. Not Applicable
**ON A/C 004-049, 051-099, 101-105, 151-199, 201-299,
4. Operation/Control & Ind
_______________________
(Ref. Fig. 003)
A. Smoke Warning
If smoke occurs (Ref. 26-16-00):
-
the related red SMOKE/DISCH indication light 11WH or 12WH comes on,
-
the MASTER WARNING lights flash,
-a continuous repetitive chime is heard,
- on the ECAM upper display unit the related message
SMOKE FWD CARGO SMOKE
AGENT...........DISCH
or
SMOKE AFT CARGO SMOKE
AFT ISOL VALVE....OFF
AGENT...........DISCH
comes on.
R 1EFF : 004-049, 051-099, 101-149, 151-199, 1 26-23-00Page 5 1201-299, 301-399, 401-499, 1Aug 01/05 1 1 1CES 1
Functional Diagram
R Figure 002A
R 1EFF : 301-399, 1 26-23-00 Page 6
1 1 May 01/05
1 1
1CES 1
Cargo-Compartment Fire-Extinguishing - Schematic R Figure 003
R 1EFF : 004-049, 051-099, 101-105, 151-199, 1 26-23-00Page 7 1201-299, 1May 01/05 1 1 1CES 1 If a smoke warning occurs, you have to lift the guard and to push the related DISCH pushbutton switch 3WX or 4WX. The cartridge at the bottle outlet detonates and the agent discharges into the applicable cargo-compartment. The contacts of the bottle pressure switch open and give a signal to the SDCU and the relay Ann Gnd 2WX. The relay opens and closes a ground contact to the related DISCH indicator light 11WH or 12WH. The light comes on. The SDCU also gives a signal to the Flight Warning Computer (FWC) and CFDS. The FWC changes the ECAM upper display to AGENT DISCH. The CFDS stores the low-pressure data.
B. Fault Condition The SDCU continuously monitors the bottle pressure condition, the two cartridges and the wiring. A low-pressure fault causes: On the overhead panel 22VU:
-
the DISCH indication lights to come on.
On the ECAM upper display unit:
-
the AGENT DISCH message to come on.
On the glearshield panels:
-
the MASTER CAUTION lights to come on.
In the cockpit:
-a single chime to sound.
A cartridge fault causes a message to show on the ECAM upper display unit
as follows:
-FWD BTL SQUIB FAULT
or
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