Honeywell 30112A/U 135-OHM Potentiometer S443A

The Honeywell 30112A/U 135 Ohm Potentiometer S443A is a resistor whose resistance value can be adjusted in heating and air conditioning equipment. By regulating the electrical resistance within a circuit that in turn controls other aspects of it such as fans, temperatures, or airflow. This potentiometer is intended for use with the S443A series of HVAC system controls only. The 135 Ohm resistance is selected deliberately for its efficiency in these uses. It is central to the process of attaining accurate control and ensuring high effectiveness of heating and cooling equipment.