Installation und Functional Diagram

As a rule, the solar heating unit is incorporated into an existing filter circuit.
The pool pump operates the solar unit at the same time.

The return pipe from the solar panel is fitted into the pool circuit after the hydraulic pinch valve using a T-fitting. A second T-fitting is inserted into the system between the filter and the pinch valve.

The pinch valve is controlled by an electronic temperature control system. The control unit receives information from a solar sensor and a water sensor. The former is mounted on the collector and the latter is fitted into the pool circuit. The water sensor measures the temperature of the pool water.

If the solar sensor measures temperature higher than the water sensor the control panel will close the pinch valve thus diverting the flow through the solar panel. The water circuit will then follow from the filter through the solar panel and back to the pool.

No additional electricity costs arise, since the solar panel is supplied via the filter pump which will be operating in any case.

The Collector Surface-Area Required

For an uncovered open-air pool the surface area of the collector must be approximately equal to the water surface area of the pool (applies to central Europe).

In order to prevent excessive cooling of the heated vvater, the pool should be provided with a cover. By doing so, the collector area needed is reduced to 60 % of the water surface area.

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