Heatcraft Refrigeration Products H-IM-79B - Manual (Page 2)

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