Aprilaire 4594 Limit Switch 30067439-890 This rebuild kit focuses on

This rebuild kit focuses on the internal mechanical components and seals

It should not be operated in an enclosed environment without active airflow

as it is a direct replacement for legacy part number 100167389

This P499 series transducer features a stainless steel construction that ensures chemical compatibility with various non-corrosive refrigerants and oils

Aprilaire 4594 Limit Switch 30067439-890 This rebuild kit focuses onThe Aprilaire 4594 Limit Switch is a critical safety component designed for high performance Aprilaire humidification systems. This genuine High Humidity Limit Switch serves as a reliable manual reset safety switch, engineered to prevent excessive moisture accumulation and potential water damage within your HVAC ductwork. By monitoring humidity levels directly, the Aprilaire 4594 ensures your system operates within safe parameters, providing essential