This is the "swing" room. If set to 2.0, and your target is 4°C, the compressor kicks in at 6°C.
The most searched-for page in any controller manual is the wiring diagram. The provides a schematic that can look daunting to the uninitiated. Here is a simplified breakdown of the terminal blocks: eliwell sb655 c manual
The structure of the programming menu is hierarchical. Most users need the or "User" level for basic setpoint changes and the "Configuration" level for advanced setup. This is the "swing" room
The manual details how to configure the device for complex HVAC scenarios: and your target is 4°C
Press and release the key. The current value will flash on the screen.
Press (>3s) – controller turns off all outputs. Display shows OFF .