Settings Vivosun controller, better done with app.

[freebird919]

Update: Just experimented, HVAC set to 70 (maybe just a bit low), automated fan stopped @ VPD 1.0, humidity 54% (all that IF calibration is correct). Did just to see what summer will be like. Fall is cool, low humidity mnt. weather. Basement cool, dark, dry always for drying. Murphy’s has to be here somewhere? Comments wanted. Included: HVAC into bottom of tent!

 

[LoveGrowingIt]

I wasn't sure at first what you're doing, then I figured out that you're running your forced-air ventilation into the tent. Do you have plants in the tent, or it this just a test?