If my translation is correct he is asking if anyone knows the pre-set on and off temperatures of the cooling fan thermostat on the domestic fridge.
"Well that didn't go as expected"
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If the sample picture is the same one as on the refrigerator then the open temperature setting is 90F and the close temperature setting is 110F. These settings are for a model 610044 controller and the info was found on climatedoctors.com in the event this was not the correct snap disk controller you speak of.
Sorry bout that. Not near my 320 right now but I suspect if you go to that web site with your controller model number you should hopefully find your upper and lower limits, they had a lot of different controllers listed there.