AirComm Corporation Airbus EC145 Cabin Air Conditioner Instructions for Continued Airworthiness User Manual

AIR CONDITIONER SERVICE MANUAL EC145-200M-1 
 
Revision 13  Page 15 
 
CHAPTER 3 
LOCATION AND ACCESS (continued) 
 
6.  Cabin Headliner / Air Distribution. Fig 3-7 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
(Kit S/N 001 thru 014) 
  

AIR CONDITIONER SERVICE MANUAL EC145-200M-1 
 
Revision 13  Page 16 
 
CHAPTER 3 
LOCATION AND ACCESS (continued) 
 
7.  Relay Panel & Circuit Breaker Assembly  Fig 3-8 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  

AIR CONDITIONER SERVICE MANUAL EC145-200M-1 
 
Revision 13  Page 17 
CHAPTER 3 
LOCATION AND ACCESS (continued) 
 
8.  Refrigerant Plumbing Schematic Fig 3-9 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  

AIR CONDITIONER SERVICE MANUAL EC145-200M-1 
 
Revision 13  Page 18 
 
CHAPTER 3 
LOCATIONS AND ACCESS 
 
9.  Aft Evaporator Installation Fig 3-10 
 
 
 
 
 
 
 
 
 
 
 
 
 
Cut and paste 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Aft Evaporator with 3rd Blower Motor Configuration 
(S/N 015 and Subsequent  

AIR CONDITIONER SERVICE MANUAL EC145-200M-1 
 
Revision 13  Page 19 
 
CHAPTER 4 
PLACARDS AND MARKINGS 
 
1.  PLACARD AND MARKING INFORMATION 
 
System Charging Instruction Placard 
 
 
 
 
 
 
SYSTEM CHARGING INSTRUCTIONS 
SYSTEM TO BE SERVICED BY QUALIFIED PERSONNEL 
 
R134a Refrigerant- Polyester oil-XH9 Desiccant 
System charge 4.5 lbs                                                                                                                                      
If exact weight of refrigerant...

AIR CONDITIONER SERVICE MANUAL EC145-200M-1 
 
Revision 13  Page 20 
 
CHAPTER 5 
SERVICING 
1.  SAFETY PRECAUTIONS 
 
CAUTION 
Refrigeration servicing should be performed by qualified personnel only! 
 
The refrigerant used in the air conditioning system is the environmentally safe HFC R134a. 
This refrigerant is non-explosive, non-flammable, non-corrosive, has practically no odor, and 
is heavier than air. Although R134a is classified as a safe refrigerant, certain precautions 
must be observed to...

AIR CONDITIONER SERVICE MANUAL EC145-200M-1 
 
Revision 13  Page 21 
 
CHAPTER 5 
SERVICING (continued) 
 
2. SERVICING INFORMATION (Continued) 
CAUTION 
IT IS MANDATORY THAT THE SYSTEM BE LEAK FREE TO INSURE TROUBLE FREE 
OPERATION. CONTINUOUS OPERATION OF THE SYSTEM WITH INSUFFICIENT CHARGE WILL 
RESULT IN REDUCED COMPRESSOR LIFE. 
 
F.  After the system is proven to be leak free, the system should be evacuated for a minimum of 
½ hour before being charged with HFC R134a. 
 
G.  Charging the system...

AIR CONDITIONER SERVICE MANUAL EC145-200M-1 
 
Revision 13  Page 22 
 
CHAPTER 5 
SERVICING (continued) 
 
3. LUBRICATION INFORMATION (continued) 
 
The oil charge is continuously circulated by the refrigerant during the operation of the system. A 
quantity of oil is trapped by the compressor.  
 
NOTE 
Maintaining the correct amount of refrigerant and refrigerant oil in the system is critical for ensuring 
the long life of the compressor. 
 
The Service Ports for this system are located in the upper aft...

AIR CONDITIONER SERVICE MANUAL EC145-200M-1 
 
Revision 13  Page 23 
 
CHAPTER 5 
SERVICING (continued) 
4.  SYSTEM LEAK CHECK 
 
Identification and elimination of system fitting leaks is extremely important to insure a trouble free 
operation of this system. 
 
A system which contains a partial charge of refrigerant can be leak tested with the aid of an electronic 
leak detector, and be recharged without evacuating the system.  
 
A new or empty system can be pressurized with nitrogen 70-80 psi (5.1-5.6...

AIR CONDITIONER SERVICE MANUAL EC145-200M-1 
 
Revision 13  Page 24 
 
CHAPTER 5 
SERVICING (continued) 
 
6. CONSUMABLE MATERIALS (continued) 
 
O-rings: 
 
As this system is charged with R134a refrigerant, it must be fitted with Highly Saturated Nitrates 
(HSN) O-rings. This system incorporates HSN O-ring for the Insert fittings that are GREEN in 
color and HSN O-rings for the Tork-Lok fittings that are Black in color. 
 
7.  SUGGESTED SPARES LIST 
 
Item                Part Number 
 
Blower Motor –...