3.3 Connections
The following points must be followed for the 12V connections:
◼ We strongly recommend using a 12V lead gel rechargeable battery for this
device. Other rechargeable battery types can also be used, but only after taking
into account the end-of-charge voltage. A fuse that corresponds to the cable
cross-section must be installed in the battery cable.
The controllers are designed to operate using 12V DC. The pumps and valves to ◼
be connected must be designed for this voltage!
The earth connections (M) are electrically connected and are not switched! ◼
The switching output (A1) is electronic 12V DC N/O contact. A potential-free ◼
changeover contact is switched parallel to the output.
3.4 Temperature sensor connection
The SOLAREG II BASIC DC devices use PT1000 precision platinum temperature sen-
sors. 2 sensors are required, the third sensor is optional.
Mounting / wiring the temperature sensors:
◼ Mount the sensors on the collector and the storage tank. Ensure proper heat
transfer and use heat-conducting paste if necessary.
Cross-sections for cable extensions (shielded): ◼
- up to 15m 2 x 0.5mm
2
,
- up to 50m 2 x 0.75mm
2
.
Connect the temperature sensors according to the system diagram. The polarity ◼
of both conductors for the temperature sensors is irrelevant.
◼ Sensor cables must be laid separately from 230V wires.
Sensor connection boxes equipped with surge protection should be used for ◼
collector sensors and cable extensions.
4 Short descriptions and device operation
4.1 Display layout
During actual operation, these symbols are only displayed for selection once
depending on the menu position.
Active menu in the menu levels ◂
Allocation of the current display ◂
Current measured values, times or control- ◂
ler states: herr 59.6C°.
Measuring point ◂
Controller state/messages ◂
Display symbols
All possible display symbols are
shown below.
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