When room temperature is at set point the FHC-1D operates the fans at idle speed with heaters off. As temperature starts to increase above set point the FHC-1D increases fan speed. When temperatures drop below set point the FHC-1D operates the fans in either shut-off mode or idle speed and switches on heaters or heat lamps.
One variable speed output
One heater interlock output
Selectable idle or shut-off modes
Adjustable set back for shut-off mode (0 to 16° F)
Adjustable idle speed (0 to 99%)
Adjustable temperature set point
Adjustable temperatrure differential (1 to 20° F)
Three-second full-power delay on start up to prevent fan ice-up
LED display
Six foot temperature probe, extendable to 500 feet