Use the and DOWN arrow keys on the front panel to adjust the SV to your desired "hot" setting. Select Heating Mode:
A: This is an ambient alarm. The internal temperature of the controller has exceeded 60°C. Move the TT91 away from the heater or add a ventilation fan to your panel. thermotech tt91 manual hot
Tap the key to move across digits. The active digit will flash. Use the and DOWN arrow keys on the
Auto-tuning forces the TT-91 to analyze your system's heat delays and calculate correct Proportional (P), Integral (I), and Derivative (D) coefficients. Ensure your system starts at ambient room temperature. thermotech tt91 manual hot