So I got a CT100 and having a heck of a time trying to figure out what my AC is 
and what I need to set this thermostat to.
Wondering if anybody else ran into these and might be able to help answer what to select.
First my research of my 2 units are as follows.
Carrier 38BYC036350
38BYC - 12 Seer Electric Heat Pump
036 - 36,000 Btuh
3 - Electrical - 208-230-1
5 - Series
0 - Packaging
Carrier 38BYC024360
38BYC - 12 Seer Electric Heat Pump
024 - 24,000 Btuh
3 - Electrical - 208-230-1
6 - Series
0 - Packaging
G (Blower Relay)
C - Common Terminal Low Voltage
R - Power
Y - (Compressor Relay)
W2 - (Iām guessing 2nd Stage Heat Pump?)
E - (Heat Pumps Emergency Heating)
O - (Heat Pump Reversing Value)
Those are the wires I have in the old thermostat, what each mean is just what Iāve researched.
Now to configure the CT100, it wants to know what kind of setup you have, First you have to figure out if it is a āNormal HVACā or a āHeat Pump HVACā ā¦
Iām going to assume this is a Heat Pump HVAC since the number of times Iāve seen that word
Next and this is where iām confused. What the heck do I have, lol, is it a 1 stage, is it a 2 stage, what is aux heat or not aux heat. Is the Aux 1 or 2 stages. I believe I also read that E (emergency heat) is not used and to just tape it off, does this mean I would no longer have emergency heat with this thermostatā¦ whatever that is, just moved into this home not long ago and havenāt even used the Heater yet. I have no clue on A/Cās and the above is just what Iāve been able to research so far. There is no W wire, just the W2ā¦
If you have a HEAT PUMP HVAC systemā¦
HEAT PUMP with no AUX heat ā¦ select A
2 stage HEAT PUMP with no AUX ā¦ select B
HEAT PUMP with AUX heat ā¦ . select C
HEAT PUMP with 2 stage AUX heat ā¦ select D
2 stage HEAT PUMP with AUX heat ā¦ select E
2 stage HEAT PUMP with 2 stage AUX heat ā¦ select F
To bad it couldnāt just see what wires are connected and figure it out itself 
Any advise would be appreciated.