The ENC-HL series is the first heat resistant panel cooler unit in the industry to be able to provide cooling capabilities with super high external temperatures of up to 70℃. These were developed to cool down control panels installed near furnaces and places with lots of metal-related items which get hot, as well as control panels installed near the ceiling of factories which also become hot, etc. In order to support the various problems which occur in high temperature environments, we developed the new "suction cooling type" cooling cycle. This includes an automatic expansion valve which automatically adjusts pressure inside coolant pipes according to external air fluctuations in the liquid injection path installed on large type cooler units. The perfect cooling cycle can be realized even in high temperature environments, and the compressor won't stop due to heavy loads, so cooling can be done smoothly. In addition to the internal malfunction alarm system equipped on traditional cooler units, it also contains compressor operation signal, compressor overcurrent warning, compressor temperature abnormality warning, etc., to alert you immediately just in case a malfunction occurs.