PPRuNe Forums - B737 NG pressurisation mode controller

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Pin Head

17th Nov 2014 00:10

B737 NG pressurisation mode controller

Is it AC or DC powered? The auto part is not battery backed up for sure.

babisiliop

17th Nov 2014 09:40

In all modes uses DC

IFixPlanes

17th Nov 2014 10:18

28V DC BUS 1 is the source for CPC 1
28V DC BUS 2 is the source for CPC 2
28V DC BAT BUS is the source for Control Panel and the OFV manual mode

SkyWagon737

2nd Dec 2014 01:43

System relies on DC power, auto controllers use DC power to move outflow valve, separate DC motor is provided MANUAL MODE.
And if you lose all AC power, and you can only use MANUAL MODE.

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