A320 Ventilation
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Joined: Oct 2011
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From: Mars
A320 Ventilation
ECAM procedure VENT BLOWER FAULT says if you have a DC ESS BUS FAULT along with VENT BLOWER FAULT , the crew should LAND ASAP. What has DC ESS BUS got to do with the Ventilation blower fan? As per FCOM the blower is powered by AC1 and DC1.
Joined: Feb 2015
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From: Middle East
looking at the schematic: DSC 21-30-20- ABN Operation:
BLOWER/EXTRACT FAULT ALERT
When either pb is set at the OVRD position:
The system is in closed-circuit configuration and adds air from the AIR CONDITIONING System to the ventilation air
As mentioned by Mr BH; in conjunction with a DC ESS BUS FAULT, leading to the closure of the AIR COND INLET VALVE (Other inop systems), a computer over heat may develop.
BLOWER/EXTRACT FAULT ALERT
When either pb is set at the OVRD position:
The system is in closed-circuit configuration and adds air from the AIR CONDITIONING System to the ventilation air
As mentioned by Mr BH; in conjunction with a DC ESS BUS FAULT, leading to the closure of the AIR COND INLET VALVE (Other inop systems), a computer over heat may develop.
Last edited by Feather44; 23rd November 2015 at 22:52.
