DIGITAL CONTROL UNIT FOR THERMAL
SOLAR SYSTEMS - Art. S303
DIGITAL CONTROL UNIT FOR THERMAL
SOLAR SYSTEMS - Art. S303
ICMA S.p.a. - Heating Technologies - www.icmaspa.it FIS303ENCL - 01/2022
Icma SpA - Via Garavaglia, 4 - 20012 Cuggiono (MI) ITALY Tel: +39 02 97249134 - +39 02 97249135
www.icmaspa.it - sales@icmaspa.it
7
5
TDST24M100SE 035912 111220
Fit the door again to close the power unit.
8
WARNING!
When closing the unit please ensure that the removable
wiring terminals have been inserted with the correct
orientation (the terminals screws must be facing
upward).
EXAMPLE OF CONNECTION FOR 3-SPEED SOLAR CIRCULATORS WITH WET or “HIGH EFFICIENCY”
ROTOR COMPLIANT WITH DIRECTIVE ErP 2015, WHICH DOES NOT REQUIRE AN EXTERNAL PWM
SIGNAL (WITHOUT A CONNECTOR FOR PWM).
N
230V~
PUMP
230V~
230V~
PUMP
230V~
L
N L
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