Friday, 7 May 2021

Aprilaire 1830, is on/off operation ignoring sensor possible?

Is it possible to configure this unit to always run the compressor regardless of the actual humidity? The wall control only goes down to 40% so the compressor will stop when it’s sensor drops to 39%.

The dehu is connected to a smartplug, which in turn is controlled by my smart home system. In “normal” operation, when one of my sensors reads above 52% it turns on the smartplug. Since the wall control is set to 40% the dehu will start the compressor and chug away until my sensor drops below 52% and kills the power. I’m careful to make sure the smartplug doesn’t “throttle” the dehu on/off like flipping a light switch quickly. This works great for controlling my RH and comfort.

My unit is in the laundry room and sometimes I want to make that room extremely dry sometimes for “specialty drying” and manually turn on the smartplug. Specifically I have CPAP tubing that after I wash them, I want to make sure they are absolutely dry inside before storing. During the summer on a hot sticky day, the dehu will run for hours and it will suck every drop out of the tubing in minutes. But during a cool spring evening the compressor won’t kick on because the RH is below 40%

Is there a way to ignore the RH and power the compressor? I couldn’t find any specs related to this.


source https://hvac-talk.com/vbb/threads/2228814-Aprilaire-1830-is-on-off-operation-ignoring-sensor-possible?goto=newpost

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