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© Danfoss | Climate Solutions | 2023.07
AQ450440081306en-US0201 | 3
Contents
Page
4
Compressor assembly ................................................................................................... 10
4.1
Storage and transport ......................................................................................................
10
4.2
Setting up ........................................................................................................................
10
4.3
Pipe connections ..............................................................................................................
11
4.4
Pipes ................................................................................................................................
11
4.5
Laying suction and pressure lines ....................................................................................
11
4.6
Operating the shut-off valves ........................................................................................... 12
4.7
Operating mode of the lockable service connections ....................................................... 13
4.8
Suction pipe filter and filter drier ...................................................................................... 13
5
Electrical connection .................................................................................................... 14
5.1
General safety ..................................................................................................................
14
5.2
Information for contactor and motor contactor selection ..................................................
14
5.3
Standard motor design for direct or part winding start.....................................................
14
5.4
Basic circuit diagramm for part winding start with standard
motor
..................................
16
5.5
Special motor: design for direct or star-delta start ...........................................................
18
5.6
Basic circuit diagramm for star-delta start with special motor ......................................... 20
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) ...................................................................................... 23
5.12
Selection and operation of compressors with frequency converters.................................
24
6 Commissioning .............................................................................................................. 24
6.1
Preparations for start-up .................................................................................................. 24
6.2
Pressure integrity test ...................................................................................................... 24
6.3
Leak test .......................................................................................................................... 24
6.4
Evacuation ....................................................................................................................... 24
6.5
Refrigerant charge ........................................................................................................... 25
6.6
Start-up ........................................................................................................................... 25
6.7
Avoiding slugging ............................................................................................................. 25
6.8
Connection of oil level regulator .......................................................................................26
7 Maintenance .................................................................................................................. 27
7.1
Preparation ...................................................................................................................... 27
7.2
Work to be carried out ..................................................................................................... 27
7.3
Spare parts recommendation/accessories ....................................................................... 27
7.4
Lubricants / oils ............................................................................................................... 27
7.5
Decommissioning ............................................................................................................ 27
8 Accessories .................................................................................................................... 28
8.1
Capacity regulator. ........................................................................................................... 28
9
Technical data................................................................................................................ 30
10
Dimensions and connections ....................................................................................... 32
11
Declaration of incorporation ......................................................................................... 34
12
UL-Certificate of Compliance
........................................................................................ 36