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5.4.1 Fitting an expansion joint (optional)....................................................................................... 32
5.4.2 Fitting the pressure reducer (optional) .................................................................................. 32
5.5 Electrical connection.......................................................................................................................... 33
5.5.1 Sizing the power cable .......................................................................................................... 33
5.5.2 Connecting the pressure booster system.............................................................................. 34
5.5.3 Connecting the remote ON/OFF input................................................................................... 34
5.5.4 Connecting the dry running protection device ....................................................................... 34
6 Commissioning/Start-up/Shutdown..............................................................35
6.1 Commissioning/Start-up .................................................................................................................... 35
6.1.1 Prerequisites for commissioning/start-up .............................................................................. 35
6.1.2 Priming and venting the pressure booster system ................................................................ 35
6.1.3 Dry running protection ........................................................................................................... 36
6.1.4 Start-up.................................................................................................................................. 36
6.1.5 Checklist for commissioning/start-up..................................................................................... 37
6.2 Operating limits.................................................................................................................................. 37
6.2.1 Frequency of starts................................................................................................................ 37
6.2.2 Ambient temperatures ........................................................................................................... 37
6.2.3 Maximum operating pressure................................................................................................ 38
6.2.4 Fluid handled......................................................................................................................... 38
6.2.5 Minimum flow rate ................................................................................................................. 38
6.3 Shutdown ........................................................................................................................................... 39
6.3.1 Stopping ................................................................................................................................ 39
6.3.2 Measures to be taken for shutdown ...................................................................................... 39
7 Operating the Pressure Booster System......................................................40
7.1 Hydro-Unit Utility Line F/VC/SVP....................................................................................................... 40
7.1.1 Control panel ......................................................................................................................... 40
7.1.2 Menu structure ...................................................................................................................... 42
7.1.3 Access levels......................................................................................................................... 43
7.1.4 Displaying and changing parameters .................................................................................... 43
7.1.5 Displaying messages ............................................................................................................ 44
7.1.6 Description of parameters ..................................................................................................... 44
7.1.7 Quick menu ........................................................................................................................... 49
7.1.8 Saving and restoring settings ................................................................................................ 49
7.1.9 Alerts and warnings............................................................................................................... 50
7.1.10 Connecting the remote ON/OFF input................................................................................... 50
7.1.11 Connecting the fire alert ........................................................................................................ 50
7.1.12 Filling the accumulator .......................................................................................................... 51
7.1.13 Energy-saving mode ............................................................................................................. 51
7.1.14 Setting flow detection ............................................................................................................ 52
7.1.15 Setting the ambient temperature monitoring device (optional).............................................. 52
7.1.16 Enabling digital inputs (optional) ........................................................................................... 52
8 Servicing/Maintenance ...................................................................................53
8.1 General information/safety regulations .............................................................................................. 53
8.1.1 Inspection contract ................................................................................................................ 53
8.2 Servicing/Inspection........................................................................................................................... 54
8.2.1 Supervision of operation........................................................................................................ 54
8.2.2 Maintenance schedule .......................................................................................................... 54
8.3 Setting the pre-charge pressure ........................................................................................................ 55
8.4 Resetting dry running protection........................................................................................................ 55
9 Trouble-shooting ............................................................................................57
9.1 Trouble-shooting: pressure booster system ...................................................................................... 57
9.2 Trouble-shooting: frequency inverter ................................................................................................. 58
10 Related Documents ........................................................................................60