A318 A319 A320 A321 Chapter 21 Air Conditioning Aircraft Maintenance Manual – KNA Rev 12

Description

A318/A319/A320/A321 Chapter 21 Air Conditioning Aircraft Maintenance Manual (KNA Rev 12)

This A318/A319/A320/A321 Chapter 21 Air Conditioning Aircraft Maintenance Manual is the complete ATA 21 reference for the Airbus single-aisle family, reproduced from the KNA identification, Revision 12, dated November 01/2011. Running 1,563 pages, this Chapter 21 Air Conditioning Aircraft Maintenance Manual covers every sub-system of the environmental control architecture used across the A318, A319, A320 and A321, from air distribution and recirculation through pressurization, heating, cooling and temperature control.

File Details

• Manual type: Aircraft Maintenance Manual (AMM) – Chapter 21, Air Conditioning
• Aircraft: Airbus A318 / A319 / A320 / A321
• Document identification: KNA
• Revision: 12
• Revision date: November 01, 2011
• Language: English
• Page count: 1,563 pages
• File format: PDF

Chapters Covered

• 21-00-00 Air Conditioning – General (Description and Operation, Maintenance Practices)
• 21-20-00 Distribution
• 21-21-00 Air Distribution and Recirculation
• 21-21-41 Filter – Recirculation
• 21-21-42 Check Valve
• 21-21-43 Mixer Unit
• 21-21-44 Air Outlet – Individual, Cockpit
• 21-21-49 Grid – Cockpit Air Supply Duct
• 21-21-51 Fan – Recirculation
• 21-23-00 Lavatory/Galley Ventilation
• 21-23-51 Fan – Extract
• 21-24-00 Individual Air Distribution
• 21-24-19 Air Outlet – Individual
• 21-26-00 Avionics Equipment Ventilation
• 21-26-11 Pressure Switches – Blower and Extract Fan
• 21-26-12 Sensor – Duct Temperature
• 21-26-13 Sensor – Skin Temperature
• 21-26-34 Computer – Avionics Equipment Ventilation (AEVC)
• 21-26-35 Controller – Avionics Ventilation Fans Speed
• 21-26-41 Check Valve
• 21-26-42 Avionics Equipment Ventilation Ducts
• 21-26-43 Filter – Demister
• 21-26-45 Heat Exchanger – Skin
• 21-26-51 Fans – Extract and Blower
• 21-26-52 Valve – Skin Air Inlet
• 21-26-53 Valve – Skin Air Outlet
• 21-26-54 Valve – Conditioned Air Inlet
• 21-26-55 Valves – Skin Exchanger
• 21-26-56 Check Valve – Air Inlet
• 21-28-00 Cargo Compartment Ventilation
• 21-28-34 Controller – Ventilation
• 21-28-52 Valve – Isolation, Aft Cargo Compartment
• 21-28-54 Fan – Extraction, Aft Cargo Compartment
• 21-30-00 Pressurization Control
• 21-31-00 Pressure Control and Monitoring
• 21-31-34 Controller – Cabin Pressure
• 21-31-35 Control Unit – Residual Pressure
• 21-31-51 Valve – Outflow
• 21-31-52 Valve – Safety
• 21-40-00 Heating
• 21-43-00 Cargo Compartment Heating
• 21-43-15 Sensor – Duct Temperature (Aft Cargo Compartment)
• 21-43-17 Selector – Aft Cargo Temp
• 21-43-34 Controller – Heat
• 21-43-51 Valve – Trim Air, Aft Cargo Compartment
• 21-43-52 Valve – Pressure Regulating
• 21-50-00 Air Cooling
• 21-51-00 Flow Control and Indicating
• 21-51-11 Sensor – Pressure
• 21-51-13 Sensor – Pack Inlet Pressure
• 21-51-41 Filter – Ozone
• 21-51-51 Valve – Pack Flow Control
• 21-51-52 Actuator – Mixer Flap
• 21-52-00 Air Cooling System
• 21-52-16 Extractor – Water
• 21-52-21 Machine – Air Cycle
• 21-52-24 Heat Exchanger Unit
• 21-52-31 Reheater
• 21-52-32 Condenser
• 21-52-41 Pack – Air Conditioning
• 21-53-00 Pack Cooling Air Control
• 21-55-00 Emergency Ram Air Inlet
• 21-60-00 Temperature Control
• 21-61-00 Pack Temperature Control
• 21-61-34 Controller – Pack
• 21-61-51 Actuator – Air Inlet Flap
• 21-61-53 Valve – Turbine Bypass
• 21-63-00 Cockpit and Cabin Temperature Control
• 21-63-11 Selector – Temperature
• 21-63-51 Valve – Trim Air
• 21-63-52 Valve – Pressure Regulating

Taken together, this Chapter 21 Air Conditioning Aircraft Maintenance Manual walks a technician from system-level description and operation through practical maintenance practices, servicing, removal/installation, inspection/check, adjustment/test and repair procedures for every listed component, so a single reference carries the ECS work from troubleshooting to close-out.

What This A318/A319/A320/A321 Chapter 21 Manual Covers

Beyond the component-by-component task procedures, this A318/A319/A320/A321 Air Conditioning Aircraft Maintenance Manual sets out the schematics, component locations, and cockpit control/indicator diagrams needed to understand how the pneumatic-to-cabin air chain works end to end: bleed-driven pack flow control, air cycle machine cooling, water extraction, mixer unit distribution, avionics and cargo compartment ventilation, cabin pressurization control via the outflow and safety valves, and both pack- and cockpit/cabin-level temperature control loops.

Why Technicians Rely on This Manual

With component reference codes, fin identifiers, zone/access data, and step-by-step removal, installation, adjustment and test tasks reproduced for the A318, A319, A320 and A321, this Chapter 21 Air Conditioning Aircraft Maintenance Manual lets a maintenance team follow the correct sequence and reference figures for each job instead of relying on memory or partial notes – reducing rework and keeping the ECS system within its designed operating parameters.

This manual is delivered as an instant PDF download immediately after purchase – no shipping, no waiting. Use it on a laptop, tablet, or phone in the hangar or shop, print any section you need, and keep a permanent digital copy of the A318/A319/A320/A321 Chapter 21 Air Conditioning Aircraft Maintenance Manual for ongoing reference.