The accuracy of your SB655/C depends on the probe placement. Use the button to define your target temperature. If you notice a discrepancy between the display and an independent thermometer, look for the calibration parameter (usually CA1 ) to apply an offset. 2. Defrost Management
Electronic controllers for centralised air-conditioning units
Multiple relay outputs for compressor, defrost, and fans. Mounting: Panel-mounted (32x74mm standard). 2. Wiring Diagram and Installation
Electronic controllers for centralised air-conditioning units
If you need a specific parameter table or wiring diagram extracted from that manual, let me know – I can generate a clean summary.