AP Airstream TC5-1N8FA Ventilation Control.

The AP Airstream TC5-1N8FA is a sophisticated ventilation controller designed for barns and agricultural buildings. It combines power and natural ventilation control, offering full environmental management across stage cooling, heated ventilation, and natural curtain operation.

With two variable fan stages, additional constant-speed / mist stages, and three heat zones, the TC5-1N8FA is ideal for facilities demanding precise control. It supports up to four temperature probes, features humidity compensation, automatic curve logic, and safety protections to ensure stable operation in farms and livestock environments.

Key Features:

• Controls two variable-speed fan stages, one constant-speed fan stage, two more either fan or mist stages, natural ventilation curtains, and three heat zones.

• Three-digit temperature display with 0.1° resolution, supports Fahrenheit or Celsius.

• Minimum ventilation / cycle mode: when no cooling is needed, first stage fans run intermittently or continuously to manage humidity and oxygen.

• Temperature curves & minimum ventilation speed curves: user can program up to six points for smooth control over time.

• Motor curve selection: choose from 10 different curves to match the motor’s voltage vs speed behavior.

• Humidity compensation: stage 1 (and possibly stage 2) minimum speed can adjust as a function of relative humidity.

• High / low temperature alarm outputs.

• Curtain opening/closing compensation based on outside temperature.

• Overload / overvoltage protection built in; uses fuses on output stages.

• Multiple probe inputs: up to four temperature probes for averaging and better response.

• Supports external communications/computer interface.

• 115/230V

Applications:

• Hog barns & swine houses

• Poultry houses

• Livestock buildings with mixed ventilation demands

• Facilities requiring both natural and powered ventilation