I've been quoted all manner of heat pumps to replace mine. One of my biggest concerns is humidity control, since I'm used to 40% RH or lower indoors during the cooling season. I understand that my decision to downsize from 3.5 to 3 ton will help keep humidity low by running more, regardless of which type of equipment I buy.
However, I'm trying to decide between a number of dual stage ($$$$) HPs ranging between 16 and 20 SEER, and a number of simpler, less expensive, single stage 15 SEER HPs. Considering the lower ROI for the high SEER units, which all sound great, I may go for the lower SEER, if it can be made to control the humidity to some degree.
My question relates to using the TH8321 with a single stage HP. One dealer said it has a proprietary "overcooling" feature that could reduce the setpoint by up to 3* automatically if needed to reduce humidity.... per user settings. He included it in his quote for a Broan 15 SEER single stage HP.
Is that true about this tstat? I know it's advertised as the model "with humidity control", but I want to be sure that feature will work with any simple HP, with or without a VS air handler.