Question about Climatech YFA-05C

It is unlikely that you will be able to cool the caravan down to 20 degrees when it is 40 degrees outside. Air conditioners of this capacity are usually designed to cool to around 5 to 10 degrees below the outside temperature, depending on the insulation of the caravan and the ambient temperature. The cooling capacity of 5000 BTU/h is intended for rooms up to 12 m², which means that it can maintain a comfortable temperature in a well-insulated room, but may not be enough to lower the temperature by 20 degrees.