In extreme corrosion environments, use of stainless steel NEMA 4X air-conditioning systems along with appropriate Copper condensers, evaporator and pipes enables to maximize life time of the cooling systems.
This option is particularly useful in coastal, offshore environments and/or next to Oil&Gas facilities.
The weight of such A/C systems is slightly higher than conventional equipment.
These unit do not require filters cleaning at regular interval, which is a huge advantage when the sites are very remote.