Pentair has now increased the protection level of its Hoffman PROAIR air conditioners NEMA 4 and NEMA 4X to IP66, especially for use in harsh and corrosive environments. In the food and beverage industry, as well as in highly corrosive environments, equipment is exposed to higher requirements. In cooling such facilities, the company says its Hoffman PROAIR air conditioners offer ideal protection.

The PROAIR series stainless steel air conditioners can be used in indoor applications. Optional components such as heaters can be added to allow their use in outdoor applications as well. NEMA 4 and NEMA 4X versions of PROAIR have now passed requirements to protection class IP66.

These air conditioners feature environmentally-friendly R134a refrigerant and compressors with an operating temperature range of -40 to 55°C. The models are compact and are available with various operating voltages (115, 230 and 460 V) and cooling capacities (400 to 2,000 W). The optimal cooling capacity is supported by washable, reusable aluminum filters.