Direct Manual Override: Precision-calibrated dials allow for field-accurate adjustments within the 55-85°F range

If using the 12A49 vent limiter

The open on rise (normally closed) contact configuration ensures the circuit breaks when the temperature reaches the calibrated limit

this coil offers superior protection against corrosion and water ingress

Maxitrol TD214B Selector Switch Refrigerant Direct Manual Override: Precision-calibrated dialsThe Maxitrol TD214B is a high performance dual remote temperature selector engineered for direct fired make up air systems. Designed for industrial and commercial heating processes, this selector allows for seamless switching between two critical temperature ranges: a lower range of 55F to 90F (typically for spray mode or standard environmental control) and a higher range of 120F to 170F (optimized for bake mode or dry cycles). This Selectra Series 14