Application guidelines
5
FRCC.PC.021.A5.22
Content
CAN-Bus and Modbus RS485 Communication ................................................................................ 30
Compressor address set-up for CAN-Bus and Modbus ............................................................................................................. 30
CAN-Bus and Modbus communication with OCS ....................................................................................................................... 31
Measurements .......................................................................................................................................................................................... 32
Alarms and warning ............................................................................................................................................................................... 33
System design recommendations .................................................................................................... 34
General ........................................................................................................................................................................................................ 34
Essential piping design considerations ........................................................................................................................................... 34
Off-cycle migration ................................................................................................................................................................................. 35
Liquid flood back ..................................................................................................................................................................................... 36
Oil equalisation ........................................................................................................................................................................................ 37
Specific application recommendations ........................................................................................... 38
Low ambient application ...................................................................................................................................................................... 38
Low load operation ................................................................................................................................................................................. 39
Brazed plate heat exchangers ............................................................................................................................................................. 39
Electronic expansion valve .................................................................................................................................................................. 39
Reversible heat pump systems ........................................................................................................................................................... 39
Discharge line and reversing valve ................................................................................................................................................... 39
Water utilizing systems .......................................................................................................................................................................... 40
Sound and vibration management .................................................................................................. 41
Starting sound level................................................................................................................................................................................ 41
Running sound level .............................................................................................................................................................................. 41
Stopping sound level ............................................................................................................................................................................. 41
Installation ......................................................................................................................................... 42
Compressor handling and storage.................................................................................................................................................... 42
Compressor mounting .......................................................................................................................................................................... 42
Parallel mounting .................................................................................................................................................................................... 43
Tandem rails configuration .................................................................................................................................................................. 43
Trio rails configuration ........................................................................................................................................................................... 43
Compressor holding charge ................................................................................................................................................................ 45
System cleanliness .................................................................................................................................................................................. 46
Tubing .......................................................................................................................................................................................................... 46
Brazing and soldering ............................................................................................................................................................................ 46
System pressure test .............................................................................................................................................................................. 48
Leak detection .......................................................................................................................................................................................... 48
Vacuum evacuation and moisture removal ................................................................................................................................... 48
Filter driers ................................................................................................................................................................................................. 49
Refrigerant charging .............................................................................................................................................................................. 49
Refrigerant charge limit ........................................................................................................................................................................ 49
Insulation resistance and dielectric strength ................................................................................................................................ 50
Commissioning ........................................................................................................................................................................................ 51
Oil level checking and top-up ............................................................................................................................................................. 51
Ordering information and packaging .............................................................................................. 52
Packaging ................................................................................................................................................................................................... 52
Ordering information ............................................................................................................................................................................. 53
Industrial pack .......................................................................................................................................................................................... 53
Accessories ......................................................................................................................................... 54
Valves, adapters, connectors & gaskets for use on suction and discharge connections ............................................... 54
Acoustic hoods and spare parts ......................................................................................................................................................... 55
Lubricants / oils ........................................................................................................................................................................................ 56
Miscellaneous ........................................................................................................................................................................................... 54
Sensors & cables ...................................................................................................................................................................................... 55
Communication tools ............................................................................................................................................................................ 56
