Hi Bill,
The thermostat is a th6220.
Under the set up function #1, we programmed in system type #8, which is 1 heat, 2 cool conventional.
Setup function #10, second stage compressor cycle rate, was left at default number #3.
I really appreciate your assistance.

Thanks,
lilcoues

I just installed a Miller MILLER 90+% Mobile Home Furnace M3RL060ABW A/C Ready, with a Amana 16 SEER 2 stage AC outside and a Honeywell Focus Pro TH6000 series thermostat. The thermostat has been programmed for a 1 stage heat and 2 stage cool and has a Y2 terminal, as does the AC unit. However, the ...