Danfoss BOCK UL-HGX66e Operating Manual page 3

Contents
4 Compressor assembly ..................................................................................................... 9
4.1 Storage and transport ........................................................................................................ 9
4.2 Setting up .......................................................................................................................... 9
4.3 Pipe connections .............................................................................................................. 10
4.4 Pipes ................................................................................................................................ 10
4.5 Starting unloader (external) ............................................................................................. 10
4.6 Laying suction and pressure lines .................................................................................... 11
4.7 Operating the shut-off valves ........................................................................................... 12
4.8 Operating mode of the lockable service connections ....................................................... 12
4.9 Suction pipe filter and filter drier ...................................................................................... 13
5 Electrical connection .................................................................................................... 13
5.1 General safety .................................................................................................................. 13
5.2 Information for contactor and motor contactor selection .................................................. 13
5.3 Standard motor, design for direct or partial winding start ................................................ 14
5.4 Basic circuit diagram for part winding start with standard motor ..................................... 16
5.5 Special motor: design for direct or star-delta start ........................................................... 18
Basic circuit diagram for star-delta start 230 V ∆ / 400 V Y ............................................. 20
5.6
5.7 Electronic trigger unit INT69 G ......................................................................................... 22
5.8 Connection of the trigger unit INT69 G ............................................................................. 22
5.9 Function test of the trigger unit INT69 G .......................................................................... 23
5.10 Oil sump heater (accessories) .......................................................................................... 23
5.11 Capacity regulator (accessories) ...................................................................................... 24
5.12 Selection and operation of compressors with frequency converters................................. 24
6 Commissioning .............................................................................................................. 24
6.1 Preparations for start-up .................................................................................................. 25
6.2 Pressure integrity test ...................................................................................................... 25
6.3 Leak test .......................................................................................................................... 25
6.4 Evacuation ....................................................................................................................... 25
6.5 Refrigerant charge ........................................................................................................... 26
6.6 Start-up ........................................................................................................................... 26
6.7 Avoiding slugging ............................................................................................................. 26
7 Maintenance .................................................................................................................. 27
7.1 Preparation ...................................................................................................................... 27
7.2 Work to be carried out ..................................................................................................... 27
7.3 Condensate drainage ........................................................................................................27
7.4 Spare parts recommendation/accessories ....................................................................... 27
7.5 Lubricants / oils ............................................................................................................... 27
7.6 Decommissioning ............................................................................................................ 27
8 Accessories .................................................................................................................... 28
8.1 Capacity regulator ............................................................................................................ 28
8.2 Oil separator ................................................................................................................... 29
8.3 Oil level regulator ............................................................................................................ 30
9 Technical data................................................................................................................ 31
10 Dimensions and connections ....................................................................................... 32
11 Declaration of incorporation ......................................................................................... 34
UL-Certificate of Compliance........................................................................................ 36
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