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HVAC Blower Motor Operation and Current Draw during Airflow Restriction! ECM vs PSC
In this HVAC Training Video, I Test the Current Draw of Each Different Blower Fan Motor during an Airflow Restriction such as a Clogged Filter, Blocked Duct, or Undersized Ducting. I Measure the Static Pressure to Show how an ECM Variable Speed or ECM Constant Torque Fan Motor Compensates!
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