The menu-based system requires the manual for initial calibration.
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The is more than a thermostat. The full manual reveals advanced capabilities: The menu-based system requires the manual for initial
Реле напряжения SVP916 (Руководство по эксплуатации) P1 for Over-voltage
: Press SET repeatedly to cycle through the menu (e.g., P1 for Over-voltage, P4 for Under-voltage).