AirComm Corporation Airbus EC135 Cabin Air Conditioner Instructions for Continued Airworthiness User Manual

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS EC135-200M-1 
Revision 8 Page 15 
 
 
 
 
 
 
 
 
 
 
Figure 10:  Aft Evaporator Installation 
Beneath Cabin Floor 
(View Looking Down) 
  
EC135-6008-1 
Aft Evaporator Assy 
ES61142-3 
Blower Motor 
EC135-6844-1 
Blower Assy  

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS EC135-200M-1 
Revision 8 Page 16 
 
 
 
 
Figure 11:  Condenser Installation 
(View Looking Inboard, LH Side) 
 
  
EC135-7000-1 
Condenser Assy 
Tailboom (ref) 
Engine Exhaust 
(ref) 
ES73186-9 
Blower Assy 2X  

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS EC135-200M-1 
Revision 8 Page 17 
 
 
 
 
 
 
 
 
Figure 12:  Air Distribution Installation 
(View Looking Inboard, LH Side) 
 
  
ES39210-2 
Airbox Actuator 
EC135-6812-1 
Air Box Assy 
EC135-6800-1 
Headliner Duct Assy 
Cabin Floor (ref)   

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS EC135-200M-1 
Revision 8 Page 18 
 
 
 
 
 
 
Figure 13:  Receiver Drier, Service Ports, and Pressure Switch Installation 
(View Looking Inboard, LH Side) 
  
ES43030-6 
Receiver Drier 
(located behind 
condenser assembly) 
Low Pressure 
Service Port 
ES57178-1 
Pressure Switch 
High Pressure 
Service Port 
Condenser Assy 
(ref)  

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS EC135-200M-1 
Revision 8 Page 19 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 14:  Bypass Valve Installation 
(View Looking Inboard, LH Side) 
 
 
  
EC135-6008-1 Aft 
Evaporator (Ref) 
ES26194-24 
Bypass Valve 
Note Arrow Flow Direction  

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS EC135-200M-1 
Revision 8 Page 20 
 
 
 
 
 
 
 
Figure 15:  Relay Panel Installation 
(View Looking Outboard)  
 
 
Relay Panel Assy 
EC135-8420-2 
LH Outside 
Skin Panel  

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS EC135-200M-1 
Revision 8 Page 21 
CHAPTER 5 
PLACARDS AND MARKINGS 
1. Placard and Marking Information 
 
 
 
 
 
Figure 16:  System Charging Instruction Placard 
(Refrigerant charge shown for dual evap installation) 
 
NOTE 
Newer systems do not include the “BOULDER, COLORADO” annotation on the System 
Charging Instructions Placard. 
 
NOTE 
Systems shipped in 2015 or later include both “Polyester oil” and “Ultra PAG oil” in the 
annotation on the System Charging...

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS EC135-200M-1 
Revision 8 Page 22 
CHAPTER 6 
SERVICING 
1. Safety Precautions 
 
CAUTION 
Refrigeration  servicing  should  be  performed  by  qualified  personnel 
only. Check  all  local  and  federal  regulations  before  servicing  any 
refrigerant system or storage device. 
 
The  refrigerant  used  in  the  air  conditioning  system  is  the  environmentally  safe 
HFC  R134a.  This  refrigerant  is  non-explosive,  non-flammable,  and  non-
corrosive,  has...

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS EC135-200M-1 
Revision 8 Page 23 
 
NOTE 
A  list  of  suggested  servicing  equipment  is  provided  later  in  this 
chapter. 
 
Servicing Procedure 
 
A. Connect  the  servicing  manifold  to  the  servicing  ports  located adjacent  to  the 
condenser  assembly (Figure 13). BLUE  for  low  pressure  or  “Suction”  and  RED 
for high pressure or “Discharge.” 
 
B. After  the  quick  disconnect  fittings  have  been  attached  to  the  servicing  ports, 
tighten...

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS EC135-200M-1 
Revision 8 Page 24 
E. After  the  leak  check  has  been  performed  evacuate  the  system  for a  minimum  of 
½  hour  before  charging  with  the  required  amount  of  HFCR134A  as  called  out 
later in this chapter. 
 
NOTE 
Static  charging  is  the  most  accurate  and  safest  way  to  charge  an 
air  conditioning  system.  To  accomplish  this, all  refrigerant  must  be 
charged  into  the  system  without  the  compressor  engaged  or...