Strathpeffer From United Kingdom, joined Jan 2007, 79 posts, RR: 0 Posted (7 years 2 months 3 weeks 5 days 6 hours ago) and read 3768 times:
Last week I flew on a BA A320 and A319. About 0.25 and 0.75 of the way down the cabin there is a small vent located in the dividing wall between two of the overhead racks. On the 319, for example, there is one around row 16. They were definitely present on the right-hand-side rack (facing forward), I didn’t check the left side.
At this location, as well as the vent, there is a wider than normal gap between the overhead rack doors and ‘not a permitted location for cabin divider’ signage. There seemed to be a slight outflow of air from the vent.
I have noticed the same thing on BA’s CFM A320s, and on BD and EI A320 family aircraft.
I assume this is where the various gases to keep us docile are pumped in – am I correct?
Troubleshooter From Germany, joined Feb 2005, 423 posts, RR: 5
Reply 1, posted (7 years 2 months 3 weeks 5 days 1 hour ago) and read 3726 times:
This could be the location of the cabin zone temperature sensors. The sensor housings are connected to the lavatory and galley air extraction system which pulls cabin air over the sensor the measure actual cabin temperature.
The A320 series aircraft is divided into three temperature zones (cockpit, fwd cabin, aft cabin) which have an independent regulation.
TristarSteve From Sweden, joined Nov 2005, 3930 posts, RR: 34
Reply 5, posted (7 years 2 months 3 weeks 3 days 20 hours ago) and read 3435 times:
Quoting Kaddyuk (Reply 4): Also, if you ever get temperature control problems, take the filter out, clean it, lightly clean the sensor and func
Where is the filter?
I went and looked on a BA A319 this morning, and the air inlets are there and if you look in there is no visible filter, and its full of fluff! With the air con off you can feel the air being sucked into the sensors down a very narrow slot.
Thats almost exactly what the filter is... its similar to the filter material in your vacuum cleaner, its just a white cloth about 3/8ths thick by 3/4ths by about 3" long... They're a pain in the arse to change on the older planes because you have to take the whole panel off... on newer airframes, they have a pop out cover so you dont have to hassle with screws & panels...
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