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The Trane ORF1507 is a critical OEM replacement fan orifice designed for precise airflow regulation in commercial and industrial HVAC systems
Ensure your chosen actuator includes a manual lever if override is required
We recommend using it only on the specific York/Johnson Controls models listed in your technical manual for safety and performance
The integrated spring return pneumatic actuator utilizes a 9-13 psi spring range to ensure a fail-safe open position
By consolidating ignition
Aprilaire 4594 Limit Switch 318423-701 The Trane ORF1507 is aThe 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