VENTILATION MENU Abnormal Operation (B) 1/10 VENTILATION MENU Abnormal Operation (B) 2/10 In this module we will look at some other abnormal indications associated with the Ventilation system. VENTILATION MENU Abnormal Operation (B) 3/10 The FAULT lights on either the BLOWER or the EXTRACT switches illuminate for; • low pressure, • computer problems • or as a smoke warning. VENTILATION MENU Abnormal Operation (B) 4/10 In addition, the BLOWER FAULT light illuminates as a warning of a duct overheat. VENTILATION MENU Abnormal Operation (B) 5/10 These abnormal cases will also be reflected on the ECAM CAB PRESS page depending on the circumstances. VENTILATION MENU Abnormal Operation (B) 6/10 In the example shown both the INLET and EXTRACT indications have changed to amber. Since this is a fault with the ventilation system the VENT indication also changes to amber. VENTILATION MENU Abnormal Operation (B) 7/10 The OVERRIDE mode is used during ECAM abnormal procedures. When the BLOWER sw is in OVERIDE mode, the BLOWER fan is turned off. The system goes into closed configuration with air from the Air Conditioning system added to the ventilation air. Avionics Equipment AIR CONDITIONING AIR VENTILATION MENU Abnormal Operation (B) 8/10 When the EXTRACT sw is in the OVERRIDE Mode, a reconfiguration of the ventilation system occurs to ensure adequate avionics equipment cooling. VENTILATION MENU Abnormal Operation (B) 9/10 There is an ECAM procedure that requires both switches to be set to OVRD. This further reconfigures the system, but on this occasion, there is a change on the CAB PRESS system display. VENTILATION MENU Abnormal Operation (B) 10/10 The EXTRACT valve indication shows partly open. This is telling you that a small internal flap has opened allowing air from the ventilation system to be discharged overboard. This configuration is used in the AVIONICS SMOKE procedure. NEXT MMoodduullee ccoommpplleetteedd VENTILATION MENU Abnormal Operation (B) 11/10 LLIISSTTOOFFSSUUBBJJEECCTTSS FFAAUULLTTLLIIGGHHTTSS AABBNNOORRMMAALLEECCAAMMIINNDDIICCAATTIIOONNSS OOVVEERRRRIIDDEESSEELLEECCTTIIOONNSS EXIT AUDIO GLOSSARY FCOM RETURN作者: bocome 时间: 2011-7-31 10:10:55