Based on the standard HRS models, the HRS-L version of heat regenerated adsorption dryers is designed for processing requirements at tropical and subtropical ambient conditions.
These conditions do not allow for cooling with fresh air. The characteristic feature of the HRS-L models is a closed loop cooling (Loop-Version). A water-cooled heat exchanger cools the air stream heated by the desiccant. From there the cooling air is led back to the inlet port of the blower.
Worldwide for all climate zones this version offers a pressure dewpoint of -70° C / -94° F.