Solar Controllers

Resol DeltaSol BS/4-V2

Free Resol DeltaSol BS/4-V2

CTUVUS Certified

+

The RESOL controller for standard Solar Thermal Systems.
Includes a heat dump function, drainback functionality including a booster function, and more.

default BS/4 - Technical Product Brief (1.18 MB)

default BS/4 - Installation & User Manual (2.96 MB)