B737 NG pressurisation mode controller

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17th November 2014 | 00:10

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B737 NG pressurisation mode controller

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

17th November 2014 | 09:40

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babisiliop

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From: On earth

In all modes uses DC

17th November 2014 | 10:18

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IFixPlanes

Joined: Apr 2004

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From: near EDDF

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

2nd December 2014 | 01:43

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SkyWagon737

Joined: Nov 2014

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From: Turkey

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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