Replacement Top Unit Circuit Board for Airstream TC5-1N8FA Combination Ventilation Controller

Designed for natural, tunnel or power/natural ventilation.

• High/low temp retention
• Overload and over voltage protection
• Voltage Rating: 115/230VAC
• Zoned or cascading heat stages
• Alarm output
• Set point and minimum ventilation curves
• Simple to program and operate
• TOP BOARD ONLY, not a complete unit.