I just had a new Tempstar HP and gas furnance system installed about a month ago. I have the blower motor running 24/7 and the humidity setting set at 50%. The company that did the install is coming back out because they weren’t able to set the charge properly for the AC side due to the temperature but got it close. Would the charge not being correct allow the humidity to get over 60% in the house before it over cools to bring down the humidity? Another thing I have noticed is that the blower motor stops running after the unit has satisfied the call for cooling but then kicks back on a few minutes later.
The old system (also a 3 ton) never had a problem with humidity just not able to cool the house.
“Observer” Communicating Thermostat
We currently have the temp set to 77 degrees but it will cool to 75 sometimes to get the humidity down to 50%.
I have a cheap temp/humidity gauge in the basement that reads 71 degrees and close to 60% humidity. The same company is also going to put in a return in the basement. What would be "normal" humidity levels for a basement? The whole basement is spray foamed with closed cell insulation BTW.