It is suppose to run 24/7 when your tub has a 24 hour circ pump. If you had a dual duty pump, low speed for x amount of hours per day....it would run with that.
There are ways on some of the Balboa systems to get into the sub level programing to change when the ozone runs, but it is for the educated spa tech because you can screw up a lot of things doing it.
Do not hook it into your pump 1, it will overload the system, leave it the way it is.
Run it like it is suppose to, why do you not wan the ozone running the same amount of time as the circ pump?