LATENTO Solar Controllers

The LATENTO solar controllers perfectly unite modern design and simple operation. The intuitive user interface makes requesting current measured values and controlling the function of solar and heating systems child's play.

The individual input keys are assigned to meaningful features and explained for each input step. Alongside key words for the measured values and settings, the controller menu also provides helpful texts or clear diagrams.

Solar controller S

"Small" Temperature-Difference-Controller for simple solar Systems., Art.-No. 878 700 180

Solar controler L

"Large" Temperature-Difference-Controller for complex solar Systems., Art.-No. 878 700 181

System controller

The system controller for flexible Regulation of complex heating systems and different back-up heaters, Art.-No. 878 700 182


  • Presentation of graphic and text with illuminated display
  • Up to 36 basic system applications and 11 pre-programmed IVT hydraulic diagrams (system controller)
  • Self-explanatory operating instruction via 4 entry keys
  • Simple inquiry of the current measured values
  • Analysis and monitoring (incl. via graphical statistics)
  • Extensive set-up menus with explanations
  • Activatable menu block against unintentional adjustment
  • Reset function to manufacturer settings

Installation and operating instructions

Technical data

Solar controller S Solar controller L System controller  
Sensor inputs Pt1000 3 6 8
Relay Outputs 230 V 1 3 7
Speed-Controller of Standard pump 1 2 2
Outputs 0…10 V oder PWM-Signal 1 2 2
Number of applications 9 36+ 13
Number of IVT hydraulic diagram     11
simple heat metering Yes Yes Yes
Flow based heat metering (VFS) No 0–2 2
Pressure Monitoring (RPS Sensor) No 0–2 2
Time and temperature-controlled thermostat function Yes Yes Yes
Battery-backed Timer RTC Yes Yes Yes
Commissioning assistance Yes Yes Yes
Data storage with statistics and graphic analysis Yes Yes Yes
Error memory and analysis with date and time Yes Yes Yes
Ethernet connection No Yes (via Data Logger) Yes (via Data Logger)


This tells you about the certifications and seals of quality awarded to our LATENTO all-year solar system

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Service & Support

This is where you can find valuable tips and documents to plan and implement your LATENTO solar system.

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Brochure Download


Solar Collectors CPC

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High performance even on cool days.

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That's what is added by the government

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