Contents9. Troubleshooting .............................................................................................................................. 9-19-1 Items to be checked first ................................................................................................................ 9-19-2 Checking and Testing operations ............................................................................................... 9-29-3 Fault Diagnosis by Symptom ....................................................................................................... 9-129-4 PCB Inspection ................................................................................................................................... 9-1810. Reference for Installation....................................................................................................... 10-110-1 Selecting Area for Installation .................................................................................................... 10-110-2 Connecting Up and Purging the Circuit ................................................................................. 10-310-3 Refrigerant Refill .............................................................................................................................. 10-510-4 Refrigerant Adjustment ................................................................................................................. 10-710-5 Flare Nut Fixing Torque ................................................................................................................ 10-810-6 "Pump down" Procedure .............................................................................................................. 10-911. Reference Information............................................................................................................... 11-111-1 Index for Model Name ................................................................................................................. 11-111-2 Refrigerating Cycle Diagram ..................................................................................................... 11-411-3 Pressure & Capacity mark ......................................................................................................... 11-611-4 The abbreviated technology words & the definition of technology terms .............. 11-611-5 Q & A for Non-trouble ................................................................................................................... 11-711-6 Common sense of refrigeration ............................................................................................... 11-10