I am installing (2) new Hunter model 44155C thermostats in my home to replace the original Carrier heatpump thermostats. How do I connect the 5 wires used from the old thermostat to the new thermostat?
The existing connections are:

R = Red Wire
Y/Y2 = Yellow Wire
G = Green Wire
C = Blue Wire
W/W1 = White Wire

The new thermostat has the following terminals:

G
RC
RH
Y/O
W/B
Y1

Thanks, Mark

Only trick is to jump Rc with Rh and call the combined terminal R.