I've purchased a Honeywell humidity Controller (I don't have the model number with me), but it handles 120/240VAC as well as low-voltage (24v). it's simply a box that shorts two wires on humidity rise, and opens on humidity drop. The technical docs on my TWE-E air handler (variable speed) (American Standard from 2006) indicate that it should be installed between "R" ad "BK" after the jumper is removed. Second, "R" and "O" should be shorted for cooling-only system, which is what I have -- no heat. This is exactly how I have it set up. However, regardless of whether the humidity controller is at 90% or 10%, the behaviour of the AH is completely unchanged. No change in fan speed, compressor doesn't come up -- nothing.
What is "supposed" to happen when R and BK are shorted together by the Humidity Controller?