Hi,
From what I can see, there is nothing in the way of manuals for any model on the Rapido website. Comments on UK fora suggest that Rapido manuals tended to be extremely generic, with a single loose sheet dedicated to the particular model and a lot of the information being reproduced (sometimes less than accurately) from the manufacturers of installed equipment (fridge, heater, electrical equipment...). You could try contacting Rapido to ask whether anything is available.