A:AnswerIt should, o and b are your reversing valve for the heat pump, however I did not see anything about a c, for the best operation it should have c hooked up as well. It actually wont work without the c wire.
A:AnswerHave you checked the wires at the unit itself? Make sure that the C wire is connected on the c terminal at the unit. I had this same problem and found that this was the issue.
A:AnswerNo bridge or Hub is required. Once installed, follow directions that come with it and you will be able to control it from your smart phone or tablet.