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The thermistor inside the sensor gives different resistance levels with temperature change and the controller uses the reading to calculate the differentials required to operate the circulating pump
Solar Hot Water Parts has the complete solar replacement range
one upper tank sensor
RESOL DeltaSol® BS/4 to suit Apricus Systems (1-3 sensors) - Replaced By DeltaSol® SLL SHWP0003 au TAS wwwRESOL DeltaSol BS 4 to suit Apricus solar hot water systems (1 3 sensors) **The RESOL DeltaSol SLL controller is the replacement controller for the Resol DeltaSol BS 4, BS 2, BS Plus, AX and AL controllers.** The DeltaSol SLL is the smallest controller of the SL series. Its equipment is optimised for small and medium sized solar thermal and heating systems, 10 pre configured basic systems are available. The DeltaSol SLL is also the first controller of
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US$ 79.00
