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TECH EU 21 CWU Pumpensteuerung Umwälzpumpe Kessel Boiler pkb20 The TECH EU 21 CWU is Diese Schutzmaßnahme trägt entscheidend The TECH EU 21 CWU is designed for heating systems in which heat is transferred from the boiler to a hot water tank or buffer tank 59 for W35 and 3 Feature Value Manufacturer TECH Controllers Model EU 21 CWU Product type Pump controller circulation pump regulator Supply voltage 230 V ±10 % 50 Hz Power consumption 2 W Operating temperature 5–50 °C Max Application area & target group
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