Using water as the cooling medium, water/air heat exchangers can provide high cooling capacities in relatively small sizes. They have a higher cooling capacity for the same size of an air conditioner and high savings can be achieved if several units are connected to an industrial chiller.
Water/air exchangers are recommended if:
the outside air has a higher temperature value than the inside air
the ambient air is extremely oily or dusty
outside air and humidity must not enter the cabinet
no heat is released into the environment
cold/chilled water is available.
By exploiting the heat exchange between two separate air flows through an aluminium pack, air/air exchangers allow heat to be dissipated inside electrical panels with low maintenance and small dimensions.
They are recommended if: