Fourtech Temperature — Controller Manual

Once the LED stops flashing, the tuning is complete and PID values are set. 5. Common Configuration Parameters

DIY projects where precise temperature isn’t critical (< ±1–2°C). Not for: Medical devices, direct compressor control without a contactor, or UL-listed commercial apps. fourtech temperature controller manual

Look for an "AT" parameter in the menu. Engaging this allows the controller to "learn" your system's heating/cooling curves for more precise regulation. Installation Best Practices Once the LED stops flashing, the tuning is