Please...
Red, blue and black wires to hot cold and w2 are fine... however the old unit only had one brown and one white,, both running to the capaciter,, but new unit has one brown, one white and one brown and white... I don't know what to connect to the capaciter and what to do with the other.

Brown, and brown/white to the new cap.

I have been told to connect brown and brown/white from motor to capaciter... but what do I do wiith the white wire.