that will do it rule of thumb don't sat one below 68deg. you may get by with it and you may not but it will sure be hard on the unit.When I got home from work yesterday one of my toddlers had turned the thermostat down to 60. So i figured thats why it may have froze up. From being turned down so low and working so hard all day. They did it at like 7 or 8 am and I didn't see it till 5pm when I got home.