DeltaSol BS

Solar controller DeltaSol BS

The RESOL controllers for standard solar thermal systems. The DeltaSol BS series provides a clear operating concept. The intuitive commissioning menu leads you through the initial configuration in only a few steps. The system selected is shown on the display, the status of the individual components is indicated by means of flashing codes. The DeltaSol BS series is available in 3 versions, depending on the demands. Details concerning the number of the relays as well as additional functions are shown in the technical data.


• DeltaSol BS series
• Drainback option
• Heat quantity measurement
• Function control
• Commissioning menu
• Unit °C and °F selectable
• HE pump control via adapter
• DeltaSol BS/4, BS Plus
• 3 basic system layouts (DeltaSol BS/4), 10 basic system layouts
• (DeltaSol BS Plus) to choose from
• Tube collector function, thermal disinfection function,
• time-controlled thermostat function

Max. number of collector fields: 1 [BS/2, BS/4], 21 [BS Plus]
Max. number of stores: 1 [BS/2, BS/4], 21 [BS Plus]
Inputs: 4 temperature sensors Pt1000
Outputs: 1 semiconductor relay (DeltaSol® BS/2), 2 semiconductor relays (DeltaSol BS/4, DeltaSol BS Plus)
Dimensions: 172 x 110 x 49 mm

Solar thermall systems for DHW heating, building heating, pool heating, etc.

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