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AirComm Corporation Airbus EC120 Cabin Air Conditioner Instructions for Continued Airworthiness User Manual

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    							AIR CONDITIONER SERVICE MANUAL EC120-200M-1 
Revision 5  Jan 27, 2016 
 1575 W. 124th Ave., Westminster CO 80234 | Tel 303-440-4075 | Fax 303-440-6355  http://www.aircommcorp.com/ | [email protected] 
 
 
 
 
AIR COMM CORPORATION  
1575 W. 124th Avenue 
WESTMINSTER, CO. 80234 
PHONE: 303-440-4075 FAX: 303-440-6355 
[email protected] 
 
 
 
INSTRUCTIONS FOR CONTINUED AIRWORTHINESS 
AIRBUS EC120B 
AIR CONDITIONING SYSTEM 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
THIS HANDBOOK INCLUDES THE MAINTENANCE INFORMATION 
REQUIRED TO BE AVAILABLE BY FAR PART 27
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    							AIR CONDITIONER SERVICE MANUAL EC120-200M-1 
Revision 5 Page ii 
 
 
 
 
 
RESTRICTED DISCLOSURE NOTICE 
 
THIS PUBLICATION IS THE PROPRIETARY INTELLECTUAL PROPERTY OF AIR 
COMM CORPORATION AND IS DELIVERED TO THE RECIPIENT WITH THE 
EXPRESS CONDITION THAT IT AND THE INFORMATION CONTAINED HEREIN 
ARE NOT TO BE USED, DISCLOSED OR REPRODUCED IN PART OR IN WHOLE, 
FOR ANY PURPOSE WITHOUT THE EXPRESS WRITTEN CONSENT OF AIR COMM 
CORPORATION. NO RIGHT IS GRANTED TO THE RECIPIENT TO DISCLOSE OR 
SO USE ANY INFORMATION CONTAINED IN THIS DOCUMENT OUTSIDE THE 
PURPOSE FOR WHICH IT WAS DELIVERED. THESE RESTRICTIONS DO NOT 
OPERATE TO NULLIFY OR LIMIT ANY RIGHTS GRANTED BY CONTRACT.
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    							AIR CONDITIONER SERVICE MANUAL EC120-200M-1 
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    							AIR CONDITIONER SERVICE MANUAL EC120-200M-1 
Revision 5 Page v 
LIST OF EFFECTIVE PAGES 
 
LIST OF REVISIONS 
Revision 0 (Original Issue)………………June 21, 2002 
Revision 1…………………………..….October 14, 2003 
Revision 2 ………………………………….July 21, 2006 
Revision 3……………………………...October 20, 2014 
Revision 4…………………………….February 27, 2015 
 
LIST OF EFFECTIVE PAGES 
Title         Page(s) Revision No. 
Record of Revisions       i   4 
List of Effective Pages      ii   4  
Table of Contents       1 to 3   4  
Chapter 1 Introduction      5 to 9              4  
Chapter 2 Airworthiness Limitation Section    11   4 
Chapter 3 Inspections       13 to 16  4 
Chapter 4 Location and Access     17 to 29  4 
Chapter 5 Placards and Markings     31    4 
Chapter 6 Servicing       33 to 39  4  
Chapter 7 Standard Practices     41 to 52  4  
Chapter 8 Troubleshooting      55 to 62  4 
 
 
Appendix A  
Weight and Balance Information     A-1   0 
 
Appendix B 
Modification Instructions for the Rotor Brake Pad Support Plate B-1 to B-2  1
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    							AIR CONDITIONER SERVICE MANUAL EC120-200M-1 
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    							AIR CONDITIONER SERVICE MANUAL EC120-200M-1 
Revision 5 Page vii 
TABLE OF CONTENTS 
CHAPTER 1 .................................................................................................................... 1 
INTRODUCTION ......................................................................................................... 1 
1. Scope .............................................................................................................. 1 
2. Purpose .......................................................................................................... 1 
3. Arrangement ................................................................................................... 1 
4. Applicability ..................................................................................................... 1 
5. Definitions ....................................................................................................... 1 
6. Abbreviations .................................................................................................. 2 
7. Precautions ..................................................................................................... 2 
8. Units of Measure ............................................................................................. 2 
9. Information Essential to Continued Airworthiness ........................................... 2 
10. Reference Documents .................................................................................... 2 
11. Distribution ...................................................................................................... 2 
12. Changes to Instructions for Continued Airworthiness ..................................... 3 
13. Air Conditioner Features ................................................................................. 3 
14. Description of Vapor Cycle Air Conditioner and Installation ............................ 4 
15. Refrigeration Cycle Illustration ........................................................................ 5 
CHAPTER 2 .................................................................................................................... 7 
AIRWORTHINESS LIMITATION SECTION ................................................................ 7 
1. Airworthiness Limitations ................................................................................ 7 
CHAPTER 3 .................................................................................................................... 9 
INSPECTIONS AND OVERHAUL ............................................................................... 9 
1. Inspection Requirements ................................................................................ 9 
2. Inspection Procedures .................................................................................... 9 
3. Component Overhaul / Replacement Schedule ............................................ 13 
CHAPTER 4 .................................................................................................................. 14 
LOCATION AND ACCESS ........................................................................................ 14 
1. Location of Air Conditioner Features ............................................................. 14 
2. Compressor Installation (view looking down and drive pulley looking fwd.) .. 16 
3. Aft Evaporator Installation ............................................................................. 18 
4. Forward Evaporator Installation .................................................................... 20 
5. Condenser Installation .................................................................................. 21 
6. Relay Panel, Single Evaporator Configuration .............................................. 23 
7. Relay Panel, Dual Evaporator Configuration ................................................ 24
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    							AIR CONDITIONER SERVICE MANUAL EC120-200M-1 
Revision 5 Page viii 
CHAPTER 5 .................................................................................................................. 26 
PLACARDS AND MARKINGS ................................................................................... 26 
1. Placard and Marking Information .................................................................. 26 
CHAPTER 6 .................................................................................................................. 27 
SERVICING ............................................................................................................... 27 
1. Safety Precautions ........................................................................................ 27 
2. Servicing Information .................................................................................... 27 
3. Servicing Procedure ...................................................................................... 28 
4. Lubrication Information ................................................................................. 29 
5. System Leak Check ...................................................................................... 32 
6. Suggested Equipment for Servicing .............................................................. 32 
7. Consumable Materials .................................................................................. 32 
8. Suggested Spares List .................................................................................. 34 
CHAPTER 7 .................................................................................................................. 35 
STANDARD PRACTICES AND INFORMATION ....................................................... 35 
1. Fitting Torque Procedures and Values .......................................................... 35 
2. Removal, Replacement & Adjustment of Compressor Drive Belt ................. 36 
3. Removal, installation / replacement of compressor assembly ...................... 37 
4. Removal, installation / replacement of compressor drive pulley ................... 38 
5. Removal, installation / replacement of forward evaporator assembly ........... 39 
6. Removal, Installation / Replacement of Aft Evaporator Assembly ................ 40 
7. Removal, Installation / Replacement of Aft Evaporator Blower Motor ........... 41 
8. Removal, installation / replacement of the condenser scoop assembly ........ 42 
9. Removal, Installation / Replacement of Condenser Assembly with deployable 
scoop .................................................................................................................. 43 
10. Removal, Installation / Replacement of Condenser Assembly with fixed Grille 
Intake .................................................................................................................. 44 
11. Removal and replacement of condenser blower motor & fan assembly for 
deployable air scoop configuration ..................................................................... 45 
12. Removal, Installation / Replacement of Receiver Drier Bottle ....................... 45 
13. Removal, Installation / Replacement of Binary Switch .................................. 46 
14. Removal, Installation/ Replacement of By-Pass Valve Assembly ................. 47 
CHAPTER 8 .................................................................................................................. 49 
TROUBLESHOOTING ............................................................................................... 49 
1. System Troubleshooting ............................................................................... 49
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    							AIR CONDITIONER SERVICE MANUAL EC120-200M-1 
Revision 5 Page ix 
2. System Schematics ...................................................................................... 51 
APPENDIX A ................................................................................................................A-1 
WEIGHT AND BALANCE INFORMATION ...............................................................A-1 
APPENDIX B ................................................................................................................B-1 
Modification Instructions for the Rotor Brake Pad Support Plate: .............................B-1
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    							AIR CONDITIONER SERVICE MANUAL EC120-200M-1 
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