To operate: Press the RST (reset) button for 3s to start the thermostat. Press again for 3s to turn it off. When the power is applied, the thermostat switches on automatically. To establish the set temperature reference (blue display), press 'S' (set) once, the blue display will flash, then press up/down to set to the desired temperature (hold down the up/down button to quickly adjust temperature range).
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