High Ambient Fans
High ambient fans, available as an optional addition to some units, are designed to effectively operate in high-temperature environments. They are ideal for applications where cooling equipment needs to function efficiently in outdoor settings or areas with above-normal ambient temperatures. These specialised fans help to dissipate heat generated by the process, countering the reduced efficiency that cooling equipment faces in hotter conditions. This ensures sustained performance and prevents potential damage to the equipment. High ambient fans are engineered with larger blades and higher RPM motors than standard fans, providing the necessary increased airflow for effective cooling. Additional features like weather-resistant coatings, high-temperature bearings, and thermal overload protection are included to ensure reliability in demanding conditions.
The operational mechanism of high ambient fans involved generating airflow directed towards coils containing warm heat transfer fluid. As air is forced over these coils, it absorbs the process-generates heat, carrying it away from the equipment. This process of heat exchange efficiently reduces the temperature surrounding the equipment, helping to maintain system performance and efficiency. The warm air is expelled, and cooler ambient air replaces it, continuously aiding the cooling process.
Utilising high ambient fans offers several advantages, particularly for equipment operating in high-temperature areas. These fans are crafted to maintain cooling efficiency under elevated temperatures, allowing equipment to function optimally even in challenging outdoor or hot environments. They provide a more powerful cooling solution withing the same physical space, an essential benefit for space-limited settings. For instance, an A12 unit with high-speed fans can deliver cooling power comparable to an A20 unit but within a smaller footprint. However, a notable drawback is the increased noise production, especially at the high operational speeds needed for effective cooling in hot environments. This noise can be disruptive in workspaces. In conclusion, while high ambient fans enhance cooling capabilities in hot conditions and offer space efficiency, their noise output necessitates consideration of the working environment and potential impact on personnel.