Aprilaire 4594 Limit Switch 30067439-890 Is this model compatible with

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

as it is a direct replacement for legacy part number 100167389

though ensure the damper motor is de-energized before adjusting the damper door spring tension

0 Cv rating minimizes pressure drop across the valve while maintaining optimal heat transfer

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

Aprilaire 4594 Limit Switch 30067439-890 Is this model compatible withThe 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