en ā Original instructions
3
5.2.3 Starting the booster set ............................................................................................................................... 22
6 Maintenance ........................................................................................................................................................... 24
6.1 Maintenance of the control panel and frequency converters .......................................................................... 24
6.2 Maintenance of the diaphragm pressure tank ................................................................................................. 24
7 Troubleshooting ...................................................................................................................................................... 25
7.1 The booster set is off ....................................................................................................................................... 25
7.2 Motor does not start ........................................................................................................................................ 25
7.3 Frequent start-ups and stops .......................................................................................................................... 25
7.4 The speed of the pump unit increases and decreases without stopping and without consumption of water
(utility closed) ............................................................................................................................................................... 25
7.5 The motor runs but no water is delivered ........................................................................................................ 26
7.6 Loss of water from the pump unit .................................................................................................................... 26
7.7 Too noisy ......................................................................................................................................................... 26
7.8 The booster set does not generate the required pressure .............................................................................. 26
7.9 Tripping of the main protection system (fuses) ............................................................................................... 26
7.10 Tripping of the differential protection ............................................................................................................... 27
7.11 The pump unit runs at maximum speed without stopping .............................................................................. 27
7.12 Only one pump unit is running ........................................................................................................................ 27
7.13 There is demand for water but the pump unit does not start .......................................................................... 27
8 Technical Data ....................................................................................................................................................... 28
8.1 Dimensions and weights ................................................................................................................................. 29
9 Declarations ............................................................................................................................................................. 29
9.1 EC Declaration of Conformity (Original) .......................................................................................................... 29
9.2 EU Declaration of Conformity (No EMCD23) .................................................................................................. 29