AirComm Corporation Bell Air Conditioner206L L1 L3 Single Dual evap L4 Single evap only Installation Instructions Insert ORing

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS - 206EC-202M-1 
 
 
Revision F  Page 15 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 
4:  Layout of Air Conditioning
 
Dual Fwd Evaporators
 Electrical Instl
Evaporator Instl
Condenser Instl
Evaporator Instl
Air Distribution System
Compressor Instl
Condenser Instl
Air Outlets  

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS - 206EC-202M-1 
 
 
Revision F  Page 16 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 3-3 
Compressor  Assy Looking Aft 
Figure 
5:  Compressor Assy Looking Aft
 S-3003EC-1 Mount
S-3012EC-11 Support
S-3012EC-10 PlateMounting surfaceS-3008EC-1Compressor
S-3016EC-2Safety Stop
ExistingBearingSupport
S-3010EC-2
Collar
S-3016EC-1Belt Guard  

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS - 206EC-202M-1 
 
 
Revision F  Page 17 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 6:  Detailed View of Compressor Pulley 
 2X NAS1149F0463P Washer
2X NAS1149F0432P Washer
S-3520EC-1 Drive 
Pulley
2X NAS1149F0432P Washer
4X 206-040-329-003 Bevel Washer 
2X 206-040-329-003 Bevel Washer
AN174-6A Bolt
Drive Ring
Existing
S-3520EC-1 Pulley2X 206-040-329-003
Bevel Washer
4X AN174-7A Bolt 
Existing
Shaft assy
Existing  

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS - 206EC-202M-1 
 
 
Revision F  Page 18 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 7:  View of Compressor Drive  
 
(7265 ALT) S-3010EC-2 Collar
S-3018EC-7 Link
7270 Belt  

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS - 206EC-202M-1 
 
 
Revision F  Page 19 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 
8:  Compressor 
Belt 
Alignment
 
(7265 ALT)
 Max Pulley Shesveoffset is ±.08
206-040-320 Shaft Assy Ref
S-3520EC-1 Drive PulleyS-3016EC-1 Belt Guard7270 BeltAft Firewall (Ref)
AN320-6 Nut
AN380-3-3 Cotter KeyTorque to 40-60 in lbs
NAS1149F0663P & NAS1149F0632P
Washer A/R
S-3014EC-10 Plug4X AN174-6A Bolt3X 206-040-340-329-1...

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS - 206EC-202M-1 
 
 
Revision F  Page 20 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Figure 
9:  Electrical 
System 
Components
 28 VDC (existing)DC Power Panel
Hi/Lo Pressure Switch
Circuit Breaker 
S-2516EC-1 Relay Panel
Condenser Blower 
Comp Clutch 
Aft Evaporator (Ref)
Existing Wire Bundle
Air Conditioning Control SwitchesMS26574-1 Circuit BreakerExisting Bus
Existing Wire BundleEvaporator Forward  

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS - 206EC-202M-1 
 
 
Revision F  Page 21 
 
CHAPTER 5  
PLACARDS AND MARKINGS 
 
 
 
 
1. Placard S-2506-7 was used from October 1996 through mid -March 2001and is 
displayed next to the service ports in the baggage compartment.   

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS - 206EC-202M-1 
 
 
Revision F  Page 22 
 
 
 
System Charge is 2.4 lb (1.1 kg) for Single Evap., 2.6 lb (1.2 kg) for Dual Evap. 
 
The above placard was used from mid -March 2001 through 2014. 
 
2. Placard S-2507EC-3/-4 is displayed next to the service ports in the baggage 
compartment. 
 
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...

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS - 206EC-202M-1 
 
 
Revision F  Page 23 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2. The above placards must be displayed adjacent to the appropriate circuit breaker 
or switch on the overhead circuit breaker panel in the cockpit. 
 
 HIGH
LOW
BLOWER
AFT
BLOWER
FWD
CONT
A/C
OFF
BLOWER
AIR CONDITIONING
 -28 Placard 
BLOWER
EVAP
 -27 Placard 
COND
BLOWER
 -26 Placard 
CLUTCH
COMP
 -25 Placard 
ACT
SCOOP
 -24 Placard   

INSTRUCTIONS FOR CONTINUED AIRWORTHINESS - 206EC-202M-1 
 
 
Revision F  Page 24 
 
CHAPTER 6  
SERVICING 
 
1. CHARGING PROCEDURE 
 
NOTE 
This system should be serviced by QUALIFIED PERSONNEL only! 
 
Leak check system in accordance with procedures in CHAPTER 7. Evacuate system for a 
minimum of 30 minutes. Charge the system with 2.4 lbs (single fwd. Evaporator) or 2.6 lbs 
(Dual fwd. Evaporator) of R134a refrigerant. System pressures can vary depending on 
temperature / humidity relationships. The...