In this case, I am the fan supplier. I sell them to a burner manufacturer, who in turn sold them to an oven manufacturer. There are four burners on this oven doing this. I have a very exact fan curve from when these were tested at the factory and there is not a place on the curve where it...
I have a motor on a fan, specifically a Reliance P56H1426 1/2 HP that feeds combustion air to a burner. The fan curve shows that the fan should never load the motor more than about .40 HP and yet the motor is running at 1.2 amps when it is nameplated at .96. This rating is on 460V 3Phase...
