Trim air 737ng
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While on this subject it reminded me of a previous question I tried to find an answer to concerning the -800.
The gasper air valves in the cockpit, is this mix manifold air or air coming from the cockpit feed from the left pack?
The gasper air valves in the cockpit, is this mix manifold air or air coming from the cockpit feed from the left pack?
Join Date: Apr 2010
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The flight deck Air comes from the Left pack via a separate duct than for the pax so does not use recirculated air...it does not enter the mix manifold.
Fresher air for us.
Fresher air for us.
Last edited by de facto; 6th Sep 2012 at 06:48.
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A word from the experts...............
Here's what Mr. Boeing has to say on the matter.....
Zone Temperature Control
This part of the A/C system increases the temperature of the conditioned air that flows into the occupied areas of the airplane. It also gives pressure regulation and on/off control for the trim air part of the system. These are the primary components:
See the trim air pressure regulation and shutoff control section for more information about the trim air pressure regulation and shutoff control systems. (SECTION 21-60)
The zone trim air modulating valves control the heat added to the conditioned air for each zone.
See the zone temperature control section for more information about the zone temperature control systems. (SECTION 21-60)
Zone Temperature Control
This part of the A/C system increases the temperature of the conditioned air that flows into the occupied areas of the airplane. It also gives pressure regulation and on/off control for the trim air part of the system. These are the primary components:
See the trim air pressure regulation and shutoff control section for more information about the trim air pressure regulation and shutoff control systems. (SECTION 21-60)
The zone trim air modulating valves control the heat added to the conditioned air for each zone.
See the zone temperature control section for more information about the zone temperature control systems. (SECTION 21-60)
Zone Temperature Control
This part of the A/C system increases the temperature of the conditioned air that flows into the occupied areas of the airplane. It also gives pressure regulation and on/off control for the trim air part of the system. These are the primary components:
- Trim air pressure regulating and shutoff valve
- Zone trim air modulating valves
- Temperature sensors.
- Flight compartment zone
- Passenger cabin zones (2).
See the trim air pressure regulation and shutoff control section for more information about the trim air pressure regulation and shutoff control systems. (SECTION 21-60)
The zone trim air modulating valves control the heat added to the conditioned air for each zone.
See the zone temperature control section for more information about the zone temperature control systems. (SECTION 21-60)
Zone Temperature Control
This part of the A/C system increases the temperature of the conditioned air that flows into the occupied areas of the airplane. It also gives pressure regulation and on/off control for the trim air part of the system. These are the primary components:
- Trim air pressure regulating and shutoff valve
- Zone trim air modulating valves
- Temperature sensors.
- Flight compartment zone
- Passenger cabin zones (2).
See the trim air pressure regulation and shutoff control section for more information about the trim air pressure regulation and shutoff control systems. (SECTION 21-60)
The zone trim air modulating valves control the heat added to the conditioned air for each zone.
See the zone temperature control section for more information about the zone temperature control systems. (SECTION 21-60)