I have 2 cars with the Sandens and they run all the time. I've got the cycle switch on the Fury but it never turns it off. I didn't not have the evap apart (had replaced that a few years prior) so I wrapped the sensor around the pipe and put the goo over it as Bouchillon suggests. It gets pretty cold, but if the car has sat out in the sun or I encounter a lot of stop and go traffic it fades. Keep in mind that's with all the heat of a twin turbo set up under the hood.

Classic air on my Charger and for whatever reason that system blows COLD! Also a triple black car, but only Chicago. It works better than the Fury for whatever reason. Both cars had all new parts.