I have a simple comfort thermostat with seven wires, R, C, O, W2, G, E, Y1.
Trying to install a hunter 44155c thermostat only has room for six wires, Y1, W/B, Y/O, RH, RC, G, Which wire gets left out or do any.

<moved from Home Electronics - KISS>

You`ve got the wrong thermostat,, take the junk hunter back and get a honeywell that specifies for a heatpump