HVAC Flow Control

If an AHU (air handling unit) or associated pumps do not have inverters fitted, then the chances are the air and water flow created by the motors are controlled by the partial opening and closing of dampers in the ducting, or valves where water is moved around. To gain HVAC flow control this is sometimes done manually or electronically through the use of dampers or valves. This is not ideal as the motor is still running at…