RESOL DeltaSol® BS/4 to suit Thermann Systems (1-3 sensors) - Replaced by DeltaSol® SLL valve Cast iron pump housing

Cast iron pump housing

Grundfos ALPHA2 25-60 N 130 Circulator Pump

Replacement 2

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Proven reliability in Australian solar hot water systems

RESOL DeltaSol® BS/4 to suit Thermann Systems (1-3 sensors) - Replaced by DeltaSol® SLL valve Cast iron pump housingRESOL DeltaSol BS 4 to suit Thermann 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