This OEM furnace pressure switch features a pre-calibrated set point of -1

Optimized Combustion: Features precision-drilled burner orifices that ensure the correct fuel-to-air ratio

Common Questions: Is the 768A-844 interchangeable with the 768A-4

Easy Installation: Features standard spade terminal electrical connectivity for rapid field replacement

This unit is widely compatible with gas furnaces and packaged units from brands including Intertherm

International Environmental 90010847 Control Box This OEM furnace pressure switchThe International Environmental 90010847 Control Box is a critical OEM replacement component engineered for high performance environmental regulation in HVAC fan coil systems. Designed with a integrated T Stat cutout, this IEC control box allows for direct, seamless mounting of original equipment thermostats, streamlining the field interface between terminal equipment and local controls. Built to LSB Industries specifications, the 90010847 is the