I have just installed a Hunter 44860 Tstat and everything seems to be working fine, both heat and cool work but I notice that my air handler will cycle on and off for 2-5 second intervals from time to time. I have the fan set to auto so it is not the refresh setting.
Both outside and inside units are Trane and it is a heatpump. I have set the Tstat to heatpump and electric in the setting menu.
The Tstat is wired as such:
Old Tstat Baystat240 WeatherTron wiring - new 44860 wiring
Y2 not used
B not used