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Solar transfer stations SolexMini / SolexMidiFor frost protection reasons, the solar circuit of a thermal solar system is filled with a polypropylene glycol/water mixture. The heating system is usually operated with water. A heat exchanger is used to transfer the thermal energy from the solar circuit to the heating circuit. The centrepiece of these modules is a plate heat exchanger, which enables excellent heat transfer due to its cross-flow operation. Grundfos high-efficiency pumps with an extremely wide control range are used in the Solex modules. The control system is delivered pre-set, assembled and wired, so that simple adaptation to the actual system is guaranteed.The use of volume flow sensors in the Solex modules enables performance-based control, ensures effective system monitoring and also offers integrated heat metering. The Solex modules are equipped with safety, shut-off and flushing valves so that the solar system can be commissioned safely and quickly.Technical data:- Up to 50 m² collector area- Max. Pressure: primary: 6 bar / secondary: 3 bar- Max. Max. operating temperature: primary: 120ºC / secondary: 95ºC- Connections: primary: 3/4 "IG / secondary: 3/4 "IG- Heat exchanger: 24 plates (IC25)- Safety valve: primary / secondary: 6 bar- Flow rate measurement: primary: FlowRotor with Hall sensor, measuring range 2-50 l/min- Controller: DeltaSol® BX Plus- Circulation pump: - Primary: Grundfos UPM3 15-145 PWM- Secondary: Grundfos UPM3 15-75 PWM
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