Trying to Understand the Camera Cooling part of this Software

Joel, Thanks so much. I'd been setting my temperatures earlier this year incorrectly then. At least I know I should be able to keep the sensor cooler than 105F, which was what my Canon sensor was getting up to during the summer here in the high desert. That's one reason I quit imaging during the summer. I was worried I would ruin the camera.
My ZWO ASI1600MM Cooled camera supposedly can handle -40C. So hopefully I can image again during the summer months. Caley Ann