Chapter 1
Check Before Servicing
1-1
Preparation for Piping Work ................................................................................................................ 1
1-1-1
Read before Servicing ............................................................................................................................ 1
1-1-2
Tool Preparation ..................................................................................................................................... 2
1-2
1-2-1
Piping Materials ...................................................................................................................................... 3
1-2-2
Storage of Piping Materials..................................................................................................................... 5
1-2-3
Pipe Processing ...................................................................................................................................... 5
1-2-4
1-2-5
Refrigerant Oil......................................................................................................................................... 7
1-3
1-3-1
Pipe Brazing............................................................................................................................................ 8
1-3-2
Air Tightness Test ................................................................................................................................... 9
1-3-3
Vacuum Drying ..................................................................................................................................... 10
1-3-4
Refrigerant Charging............................................................................................................................. 11
1-4
Precautions for Wiring ....................................................................................................................... 12
1-5
GB_BS_01_C