static pressure

[frankiebee83]

I want to correlate the older three speed motors with a pressure switch in the air supply to operate exactly opposite from the way vari speed systems work now. As the pressure drops I want to increase the fan and, as the pressure increases I want to decrease the fan speed. This would be to zone the older systems with more flexibility than is available now. Do you make a pressure switch that is compatible with your control boards.

[Eric K.]

Frank,

Unfortunately we do not offer a control to change the speeds of an older PSC type motor.

Eric