SQFlex Service Instructions

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Overview of possible system combinations
1. In the table below find the system corresponding to your system.
2. Follow the Trouble-shooting instructions for your system.
In systems with solar modules Trouble-shooting must be carried out in the middle of an unclouded day.
In systems with wind turbine Trouble-shooting must be carried out at a wind speed of minimum 3.5 m/s (8 mph).
3. Find the faulty component and repair/replace it or contact the Grundfos Service Centre stating the data
from the component’s nameplate.
* May be a component in the system.
System
System components
Pump Solar panel Wind turbine with IO 102 Generator/ supply network Switch box CU 200 control unit Level switch
4.1 Solar-powered system on page 27
IO 50
4.2 Solar-powered system with CU 200 control
unit and level switch on page 29
4.3 Solar-powered system with generator back-up
on page 31
IO 101
4.4 Wind-powered system on page 33
4.5 Wind-powered system with CU 200 control
unit and level switch on page 35
4.6 Combined system on page 37
4.7 Combined system with CU 200 control unit
and level switch on page 39
4.8 Options with generator as back-up source on
page 41
**
IO 101
**
sqflex_SI_US_WG.book Page 26 Thursday, October 1, 2009 3:27 PM