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:

• the outside air has a lower temperature value than the inside air (approx. ΔT=10°C)
• a low cooling capacity is required
• little maintenance is required
• the ambient air is excessively oily or dusty
• outside air and humidity cannot enter the cabinet

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.