What is the close-off pressure rating for this 1

allowing the ignition control board to monitor the burner status with higher precision than single-probe systems

Optimized Compression: High-density material provides the necessary "crush" to fill microscopic surface irregularities in the cast iron housing

which are essential for minimizing vibration and preventing premature bearing wear on the blower motor

Fasco D277A Motor 320788-704 What is the close-off pressureThe Regal Rexnord Fasco D277A is a 3 speed, single phase HVAC motor designed for reliable airflow control in residential and light commercial systems. Operating at 277V, this motor runs at approximately 1050 RPM and is commonly used in applications requiring selectable speed control for balancing airflow across different operating conditions. The 3 speed configuration allows technicians to adjust performance without replacing the motor, making it a