Emerson Copeland YB56K1G Application Manuallines page 3

4 Electrical connection ...................................................................................... 17
4.1 General recommendations............................................................................................... 17
4.2 Electrical installation ........................................................................................................ 17
4.3 Terminal box .................................................................................................................... 18
Terminal box - IP54 ............................................................................................. 19
4.3.1
Terminal box - IP65 ............................................................................................. 19
4.3.2
4.4 Motor insulation ................................................................................................................ 20
4.5 Motor protection ............................................................................................................... 20
4.6 High-potential testing ....................................................................................................... 20
5 Start-up & operation ........................................................................................ 22
5.1 Strength-pressure test ..................................................................................................... 22
5.1.1 Compressor strength-pressure test ...................................................................... 22
5.1.2 System strength-pressure test ............................................................................. 22
5.2 Compressor tightness test ............................................................................................... 23
5.3 System evacuation ........................................................................................................... 23
5.4 Preliminary checks - Pre-starting .................................................................................... 23
5.5 Charging procedure ......................................................................................................... 24
5.6 Run-in time ....................................................................................................................... 24
5.7 Initial start-up ................................................................................................................... 24
5.8 Rotation direction ............................................................................................................. 24
5.9 Start-up and shut-off sound ............................................................................................. 25
5.10 Deep vacuum operation ................................................................................................... 25
5.11 Pumpdown cycle .............................................................................................................. 25
5.12 Shell temperature ............................................................................................................. 26
5.13 Minimum run time ............................................................................................................ 26
5.14 Supply frequency and voltage ......................................................................................... 26
5.15 Oil level ............................................................................................................................ 26
6 Maintenance & repair ...................................................................................... 28
6.1 Qualification of workers .................................................................................................... 28
6.2 Preparation and work procedure ..................................................................................... 28
6.3 Disassembling system components ................................................................................ 29
6.4 Exchanging the refrigerant ............................................................................................... 29
6.5 Replacing a compressor .................................................................................................. 30
6.5.1 Compressor replacement ..................................................................................... 30
6.5.2 Start-up of a new or replacement compressor ..................................................... 30
6.5.3 Compressor return procedure .............................................................................. 31
6.6 Lubrication and oil removal .............................................................................................. 31
6.7 Oil additives ..................................................................................................................... 32
7 Dismantling & disposal ................................................................................... 33
8 References ....................................................................................................... 33
AGL_Ref_ST_YBK1G_EN_Rev01