Systems Guide

A318/A319/A320/A321
Professional
SYSTEMS
Systems guide
Vol
4
04-03-5
11 July 2018
INTRODUCTION
It is very easy to find actual manuals for the A320 range of aircraft on the internet. For obvious reasons
we cannot include them but even a quick search will lead you to a treasure-trove of information. Start
your search with ‘A320 FCOM’ to find complete operation manuals. Almost all you find in there are
applicable to this product.
AIRCRAFT GENERAL
The A320 family includes the A318, A319, A320, and A321, all medium range, subsonic narrow body civil
aviation aircraft. Powered by two high-powered by-pass turbofan engines. They seat up to 220
passengers.
AIR CONDITIONING & PNEUMATICS
The air conditioning system is fully automatic and provides continuous renewal of conditioned air in three
zones: COCKPIT, FWD CABIN and AFT CABIN. Temperatures in these three zones can be regulated
independently. The air is supplied via the pneumatic systems using:
• two pack flow control valves
• two packs
• the mixing unit that combines air from the packs and the cabin
The cold air from the PACKs is mixed with the hot bleed air (taken from the engines or APU) by a mixing
unit that is controlled by the zone regulator.
All control is done via the AIR COND panel on the overhead panel.
• Zone temperature control selectors
o COLD = 18 °C
o CENTER = 24 °C
o HOT = 30° C
• HOT AIR pb switch