The RESOL 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 its category to offer the automatic function control according to the VDI 2169 directive.
Additionally, it is equipped with a potential-free extra-low voltage relay for backup heating demand and a V40 ﬂowmeter input for heat quantity measurement.
Versatile and easy to operate!
- 3 relay outputs (inc. 1 potential-free extra-low voltage relay)
- 4 inputs for Pt1000, Pt500 or KTY temperature sensors
- 1 V40 impulse input
- 2 PWM outputs for the speed control of high-efﬁciency pumps
- 10 basic system layouts to choose from
- Automatic function control according to VDI 2169
RESOL have over 40 years manufacturing experience and their products currently control more than 4 million systems in over 70 countries worldwide.