Water/Air Heat Exchangers
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.
Air/Air Heat Exchangers
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
