RESOL DeltaSol® BS/4 (1-3 sensors) with external housing* - OUT OF STOCK


Tax includedShipping calculated at checkout


RESOL DeltaSol® BS/4 (1-3 sensors) with external housing* 
The RESOL DeltaSol® BS/4 controller provides a clear operating concept and is equipped with the illuminated combined display with system-monitoring. Flashing symbols for sensors, pumps and valves enable an immediate allocation of temperatures, temperature differences and active actuators. This makes adjusting and monitoring the solar system quick and easy. The RESOL DeltaSol ® BS controller is available from in 2 versions, depending on the demands. Details concerning the number of the relays as well as additional functions are shown in the technical data.
The RESOL DeltaSol BS/4 (1-3) comes with:
  • 1 x 20m roof sensor
  • 1 x 2.5m tank sensor
  • 1 x 2.5m upper tank sensor
  • Austrailan power supply (fitted)
  • Female pump lead (fitted)
  • IP54 external housing (*housing supplied separate to the controller and will need to be fitted)

Technical Specifications - RESOL DeltaSol® BS Solar Controller

    RESOL DeltaSol® BS/4 has 3 basic system layouts to choose from

    Drainback option

    Heat quantity measurement

    Tube collector function, thermal disinfection function

    Commissioning menu

    Unit ºF and ºC selectable 

    HE pump control via adapter

    Aux relay for hot water system element can be easily added to this model

Take the time to browse our site. We stock a range of RESOL accessories to suit the BS/4 solar controller. Accessories are easy and simple to connect to the VBus controller. It is as easy as adding a sensor.

The RESOL DeltaSol BS/4 controller has an IP ratting of 20 which is fine for indoor use. If using outside we recommend using a moisture proof housing. Take a look in our pump station section for more information.