Help with Neptune Controller ASAP

[Jaws]

So I'm going out of town this weekend which also is supposed to be one of the hottest couple days this summer. I've got an Aquacontroller III to monitor the tank and turn the lights on and off but can anyone give me any help on how to set the controller so it turns the lights off if it gets too hot? Can you just alter one of the preset programs or do you have to add an new program? Any help with this would be really appreciated. Thanks.