SQFlex Service Instructions

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Service instructions

SQFlex water supply systems

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Table of contents

1. SQFlex components........................................................................................................................ 4

1.1 Pumps................................................................................................................................................ 4

1.2 Motor.................................................................................................................................................. 7

1.3 Control and switch boxes................................................................................................................... 8

1.4 Solar modules.................................................................................................................................. 15

1.5 Wind turbine..................................................................................................................................... 18

2. Start-up........................................................................................................................................... 22

3. Maintenance................................................................................................................................... 23

3.1 Solar modules.................................................................................................................................. 23

3.2 Wind turbine..................................................................................................................................... 24

4. Trouble-shooting ........................................................................................................................... 25

4.1 Solar-powered system..................................................................................................................... 27

4.2 Solar-powered system with CU 200 control unit and level switch ................................................... 29

4.3 Solar-powered system with generator back-up ............................................................................... 31

4.4 Wind-powered system ..................................................................................................................... 33

4.5 Wind-powered system with CU 200 control unit and level switch.................................................... 35

4.6 Combined system............................................................................................................................ 37

4.7 Combined system with CU 200 control unit and level switch .......................................................... 39

4.8 Options with generator as back-up source ...................................................................................... 41

5. Service of pump and motor .......................................................................................................... 43

5.1 General information ......................................................................................................................... 43

5.2 Service tools .................................................................................................................................... 44

5.3 Torques and lubricants .................................................................................................................... 46

5.4 Helical pump type ............................................................................................................................ 47

5.5 Centrifugal pump and motor ............................................................................................................ 48

5.6 Centrifugal pump type with splined shaft......................................................................................... 49

5.7 Centrifugal pump type with cylindrical shaft..................................................................................... 50

5.8 Checking and replacing wear parts of centrifugal pumps................................................................ 51

5.9 Testing the pump by means of CU 200 SQFlex control unit............................................................ 52

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