... are divided in different groups by temperature, the DL group, for 0, DD for -18 and DJ, ... to fixed with the products.1. Product descriptionThe D series Products are air coolers applicable to various cold ... are divided in different groups by temperature, the DL group, for 0, DD for -18 and DJ, for ... motor;Stainless steel defrosting heater;3. Model code D L 16.3 / 80DSeries nameLTemperature,L-5~5D ...