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Variable Fan and Fixed-Stage Heater Controller FC-1T-1VAC-1F


Please note that the FHC-1D model has been discontinued and replaced with the FC-1T-1VAC-1F

Control ventilation and heating with one easy-to-use controller

The FC-1T-1VAC-1F automatically controls the temperature in a room by adjusting variable speed fans and controlling a heater interlock.

How it works

  • When the temperature is at the temperature set point, the FC-1T-1VAC-1F operates the fans at the idle speed setting and the heater is off.
  • When the temperature exceeds the set point, the FC-1T-1VAC-1F increases the speed of the fans.
  • When the temperature drops below the set point, the FC-1T-1VAC-1F shuts off the fans (in shut-off mode) or operates the fans at idle speed (idle mode) and switches on the heater or heat lamps.

The FC-1T-1VAC-1F is ideal for poultry, livestock, greenhouse, or light industrial buildings.


  • One variable speed output
  • One heater interlock output
  • Automatic shut-off and idle modes
  • Adjustable off set-back for shut-off mode (0 to 16°F)
  • Adjustable idle speed for idle mode (0 to 99%)
  • Adjustable temperature set point, range: 32 to 99°F (0 to 37°C)
  • Adjustable temperature differential (1 to 20°F)
  • Three-second full-power-turn-on to minimize fan ice-up
  • LED display
  • Fahrenheit and Celsius display
  • Error code display for troubleshooting
  • Overload protection fuse
  • Six-foot temperature probe, extendable to 500 feet
  • NEMA 4X enclosure (corrosion-resistant, water-resistant, and fire-retardant)
  • CSA approval
  • 2 year warranty