DTI: for partially recessed mounting of the cooling unit in the door or side DTS: for outer mounting of the cooling unit on the door or side ? Highest energy efficiency for significant energy savings and operating cost reduction ? Significantly less refrigerant used ? UL listed according to UL 60335 for long-term planning even after 2024 ? Large distance between intake and exhaust vents, safe circulation within the electrical enclosure due to long passage of air, therefore hot spots are eliminated ? Exceptional serviceability ? Service port for easy retrieval of parameter settings/history (Pfannenberg εCOOL-Plant software necessary) ? Optional filter (easy to retrofit – toolless)?