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6 Commissioning
6.1 Testing the pump
CAUTION
Damage to pump caused by dry operation!
Make sure that the solar circuit is filled with heat
transfer fluid.
The controller casing is closed.
All connections are properly made.
The solar energy system is filled.
Connect the mains supply.
To switch on the pump, set the operating switch to
the upper position (on).
The display is lit with a red background.
on appears in the display. After approx. 3 sec-
onds on flashes in alternation with the display.
To switch off the pump, set the operating switch to
the lower position (off).
The display is lit with a red background.
off appears in the display. After approx. 3 sec-
onds off flashes in alternation with the display.
✓
✓
✓
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