I have this heat pump and did not come with heat strips. I want to add 1- 10kw and 1- 5kw heat strips. The evaporater unit did not come with a wireing diagram and I want to make sure I wire it to work with the heat pump or be able to run just the heat strips on emergency heat if wanted. This is why I am looking for wire diagram. Free seems like all sites want to charge for this info.