A320 After ENG SHUT DOWN procedure
In procedure it is written that XBLEED should be selected OPEN under conditions one pack off(WING A.ICE ON), FIRE P/B not pressed, perf permits. What is the reason for X-BLEED to be OPEN if no need for WING A.ICE and for ENG RELIGHT? Just always to be ready for icing conditions or for both pack operation or what?
More have I: why XBLEED should be shut if FIRE P/B pressed and no APU bleed?
Thanks