2
Beacon II Board layout ........................................................................................................3
Installation Tips ...................................................................................................................4
Brazing
Power Supply
Wiring ..............................................................................................................................5
Multiple Evaporator Configuration ....................................................................................... 6
Box Temperature control setting
Leak Testing
Refrigerant Charging........................................................................................................... 7
Start Up Operation .........................................................................................................8-11
Operating Mode Display.................................................................................................... 11
Programming and reviewing settings and changes....................................................... 12-13
Program review button
Select button
Enter button
Monitoring Items ...............................................................................................................14
Monitor button
Force Defrost button
Force Service button
Reset Time button
Clear/Test button
Locking Beacon II board.................................................................................................... 15
Status Indicator LED ....................................................................................................15-16
Low Ambient Operation .....................................................................................................16
Pumpdown................................................................................................................... 16-17
Defrost .......................................................................................................................17-18
Alarms ............................................................................................................................18
Error Indicator
Evaporator fans shutdown by operators ............................................................................19
Checking Operation of Expansion valve .......................................................................20-21
Power Failures
Service Mode
Spare Sensor Terminals
Checking sensors .............................................................................................................21
Sensor resistance/temperature table
System Defaults................................................................................................................ 22
Parts List
Operational limits ..............................................................................................................23
Expansion Valve Capacity
Diagnostics ..................................................................................................................24-27
Wiring diagrams ...........................................................................................................28-33
Preventive Maintenance.................................................................................................... 34
Service Record ............................................................................................................35-36
Index