Engel 57ltr Combi and temp settings

Hi everyone

Have just bought an Engel 57l combi and am embarassed to say I am a bit confused about what settings etc to put it on in order to use it? Tried it out this afternoon and putting it on five seemed to take it down way below freezing fairly quickly but wasnt really sure what happened after that. The instructons seemed thin to say the least and really dont give any guidance on how to manage the thing when you are actually using it!!

Once you load it up with food etc do you just have to keep an eye on the temperature and increase/ decrease the setting if its getting too hot or cold or does it have a thermostat to keep it at a constant temperature? I think that the temperature readout actually relates to the freezer temp rather than the fridge and that the freezer needs to be set to freeze in order to get the fridge to be at the right temperature.......

Does anybody have any experience with these fridges in particular or any guidelines we can use in terms of optimum temperatures for different foodstuffs and more importantly what you do before you go away in terms of getting the temperature right. Obviously ambient temperature will play make a dfference but would be good to get a rough idea......

Thanks in advance

Darren