Cellar Conditioner - Temperature in Cellar

Having fitted a cellar conditioner - should the temperature in the cellar not be low enough, or the unit is venting hot air constantly, please call us to discuss. 99% of the time, the reason is that the cellar has not been insulated to the specification required for the unit to work adequately. Each wall, floor AND ceiling MUST be insulated to our specification, with an R value greater than 2.66 U less than 0.35. E.g., 6ft of concrete all around, underground, is NOT sufficient. The cellar will still be affected by the ambient temperature (the weather and earth) outside the building.