Product range Solex

Solar transfer stations

SolexMini

Product range Solex

Advantages of the PAW solar transfer stations:

• CE conform according to DIN EN 60335

• insulation according to EnEV directive

Application range of solar transfer stations

The solar circuit in a solar thermal system must be filled with a water

and propylene glycol mixture to prevent frost damage. The heating

installation is normally operated with water.

To transfer the heat energy from the solar circuit to the heating circuit,

a heat exchanger is used.

In small systems, a smooth pipe heat exchanger integrated in the

storage tank transfers the heat energy. With larger collector fields, the

heat transfer capacity of those heat exchangers is no longer sufficient.

In large systems, solar transfer stations transfer the collected heat

energy from the collectors to the heating water circuit.

The centre piece of those modules is a plate heat exchanger, which

allows an efficient heat transfer by means of its cross-flow operating

mode.

The operating conditions of the heat exchanger vary due to

fluctuation in heat radiation, buffer temperatures and individual

system requirements. To operate the entire system at its optimum, you

have to set the flow rates at the heat exchanger, depending on the

individual control target and the current conditions.

For this purpose the Solex modules use high-efficiency pumps, which

offer an extremely broad adjustment range.

Thus the controller efficiently adjusts the pumps to the current

required flow rates.

Additionally, the pumps used save more than 50% of electrical driven

energy compared to conventional asynchronous pumps. Furthermore,

these pumps meet the energy efficiency guidelines (EuP / ErP READY)

of 2015.

The controller is delivered preset, mounted and prewired to guarantee

an easy adjustment to the real system.

The use of flow rate sensors in the Solex modules allows a power

adjusted control, an efficient system monitoring and an integrated

heat quantity measurement.

For a safe and quick commissioning, the Solex modules are equipped

with pressure relief valves, ball valves as well as with fill and drain

valves.

SolexMidi / Maxi

262

01/2020 • Printed in Germany

PAW GmbH & Co. KG • 31789 Hameln • Germany • Phone: +49-5151-9856-0 • Fax: +49-5151-9856-98 • info@paw.eu • www.paw.eu

SolexMega

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