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Using an incorrect pitch can overload the fan motor or cause insufficient cooling
Simplified Installation: Features a standard 2-bolt flange design
this retainer supports the necessary tension for accurate pneumatic valve actuator positioning
By integrating this OEM replacement part
Zonefirst AOBD-20X8 Damper Freon Using an incorrect pitch canThe Zonefirst AOBD 20X8 is a high performance automatic opposed blade damper designed for precision airflow management in commercial and residential HVAC zoning. This 20" x 8" unit features a robust 24Vac power open power closed actuator, requiring a 3 wire connection for positive drive control in both directions. Unlike standard gravity or spring return models, the AOBD 20X8 side mount damper utilizes a synchronous motor that draws power only during
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