Aprilaire 4594 Limit Switch 30067439-890 Key Benefits: Direct OEM Replacement:

Key Benefits: Direct OEM Replacement: Engineering-matched to replace Fenwal 22-100000-551 and compatible with a wide range of Fenwal ignition modules

) output is rated for 0

Its robust brass construction and high-quality sensing bulb provide reliable pressure regulation in demanding environmental conditions

Is this model compatible with older R-22 or R-12 systems

This rebuild kit focuses on the internal mechanical components and seals

Aprilaire 4594 Limit Switch 30067439-890 Key Benefits: Direct OEM Replacement:The 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