Stainless steel cooling units

Cooling units keep the air inside an enclosure below a maximum permissible temperature, which may be even lower than that of the air surrounding it. The ambient air is used to cool refrigerant, which removes the heat from the air inside the enclosure, at a high temperature and pressure.

However, due to separate internal and external air circuits, these units satisfy an ingress protection category of IP54 and the air inside the enclosure is simply recirculated preventing the ingress of dust or other contaminants into the enclosure.