i just hooked up an infinity air handler with a carrier single stage condenser and an infinity control. according to the paperwork, this will work. i called my local reps tech support and they said with it set up like this, the air handler speed won't modulate. i can only program in the cfm per ton i want the the unit will run at one speed all the time. a fellow contractor i know said the fan speed will modulate hooked up to the single stage compressor. does anyone have any experience with this.