Danfoss VTT Series Applications And Installation Manual page 4

Page 4 of 73
M-AI-VT-001-EN Rev.C.1
Content
Refrigerant Piping Design ..................................................................................................................33
Refrigerant Piping Connections ........................................................................................................................................................... 33
Motor Cooling Connections .................................................................................................................................................................. 33
Motor Cooling Port Specifications ............................................................................................................................................... 34
Economizer Port Types ..................................................................................................................................................................... 34
Drive Module Piping ................................................................................................................................................................................ 35
Refrigerant Cooling ............................................................................................................................................................................ 36
Cold Plate Tube .................................................................................................................................................................................... 36
Piping Design Guidelines ...................................................................................................................................................................... 36
General Requirements ...................................................................................................................................................................... 36
Motor and Drive Module Cooling Requirements .................................................................................................................... 37
System Piping and Design ............................................................................................................................................................... 37
Refrigeration Schematics ....................................................................................................................................................................... 38
Options and Accessories .....................................................................................................................41
Drive Module Cooling .............................................................................................................................................................................. 41
Ancillary Devices ....................................................................................................................................................................................... 41
Physical Data of the VTT Compressor ................................................................................................42
Compressor Module ................................................................................................................................................................................. 42
Drive Module .............................................................................................................................................................................................. 46
DC-DC Converter Dimensions ............................................................................................................50
Installations Guidelines ......................................................................................................................51
Safety Summary ......................................................................................................................................................................................... 51
Unpacking and Inspection ..................................................................................................................................................................... 51
Required Tools ............................................................................................................................................................................................ 52
Compressor Module Installation ........................................................................................................53
Rigging Requirements ............................................................................................................................................................................. 53
Clearance ...................................................................................................................................................................................................... 54
Compressor Installation Instructions ................................................................................................................................................. 54
Drive Module Installation ...................................................................................................................56
Safety ............................................................................................................................................................................................................. 56
Planning the Installation ......................................................................................................................................................................... 56
Pre-Installation Checks ............................................................................................................................................................................ 56
Cooling Fans................................................................................................................................................................................................ 56
Airflow ........................................................................................................................................................................................................... 57
Lifting ............................................................................................................................................................................................................. 57
Controls Installation ............................................................................................................................58
Control Wiring Guidelines ...................................................................................................................................................................... 58
CIM Board Jumpers ................................................................................................................................................................................... 58
CIM Board Wiring Details ........................................................................................................................................................................ 58
CIM Board Mounting and Dimensions .............................................................................................................................................. 61
CIM Board RS-485 Cable Connections .............................................................................................................................................. 62
CIM Board RS-485 Cable Termination ................................................................................................................................................ 62
RS-485 Installation and Set-up ........................................................................................................................................................... 62