System Sensor D4S Detector Sensor 30067439-890 Using it with R-404A will

Using it with R-404A will result in incorrect superheat settings and potential compressor damage due to refrigerant mismatch

Compatible with Natural Gas

compatibility depends on a 5/8" bore and CCW rotation

If the blower reaches the set point but the contacts remain open

50 Amp draw

System Sensor D4S Detector Sensor 30067439-890 Using it with R-404A willThe System Sensor D4S is a 4 wire photoelectric duct smoke detector sensor component designed specifically for integration with the D4120 duct smoke detector housing. Engineered for high performance HVAC smoke detection, this replacement sensor head utilizes an advanced optical sensing chamber to detect combustion particles across a wide range of airflow speeds. It is optimized for low flow duct smoke detection, maintaining reliable operation in