Need some help

I recently purchased the new IM Helio heater system. It has a temp controller adjustable by 1 degree increments I am interested in keeping my tanks temp set at 78 degrees. The system has two titanium 350w heaters, and a titanium sensor. As redundancy, my chiller has a 400w heating element which I would like to kick on if my main heater system fails. What would the programming look like for the IM Helio system?

Thanks