Current configured Bryant P271-3457 heat pump thermostat is 7 wires labelled as follows, Y, G, R, O, W2 (B handwritten over the W2), E and C. The LUX thermostat has the following options: W, Y, G, B, O, RC, RH and C.

I can create jumpers if necessary but just don't want to damage my heating/cooling system by trying things.
Thanks!