Replaced Honeywell with Aprialaire 8600 due to temp being off many degrees. No issues with the Honeywell other than this. Aprialaire runs blower fine on heat, circ, and all the time. When the unit calls for ac the blower on the furnace starts slow then after a second or two blows as normal. Like you slowly exhale then let it all out. Furnnace and compressor a Heil ans 3,5 ton Rheem 17 w coil witha thx valve. One speed on both units. Could this be a feature of the 8600 to draw low amps then when it gets the ok all is well ramps up? No ac guys can give me an answer and Aprilaire is closed today. Ac guys said capicator issie vut told them with the old stat all was fine and rhis issue is only when the 8600 makes a call for ac.