I currently have a York heat pump with a Janitrol gas furnace.
Electromechanical 2H/1C with aux heat
X=Black
R=Red
W=White
Y=Yellow
G=Green
O=Orange
B=Blue
Honeywell VisionPRO TH8320U
X=C
R=Rc (Rc+R jumpered)
Y=Yellow
W=Aux
G=Green
O=O/B (code 190 set to 0)
B=Taped off. Not used.
I have no cross reference material for the VisionPro TH8320U. Are the above connections correct?

If you don't find any help from https://www.askmehelpdesk.com/electrical-lighting/thermostat-manuals-37098.html
You will just have to rat out what each terminal of the furnace needs, and what each terminal of the thermostat does.

If you don't find any help from https://www.askmehelpdesk.com/electrical-lighting/thermostat-manuals-37098.html
You will just have to rat out what each terminal of the furnace needs, and what each terminal of the thermostat does.

You can hope somebody here knowing more about heat pumps than I do helps.