Achieving efficient cooling at lower cost

When the power to a cellular antenna tower goes out, emergency batteries provide power for up to six hours. However, battery life is significantly reduced by exposure to temperatures outside the optimal range. Long life operation is required in wireless base station and cell tower applications to maximise up-time and maintain low cost of ownership. The AA-480 Series can operate for much longer with less power consumption than previously designed thermoelectric-based cooling units, ensuring more reliable cellular coverage during power outages.

With 480W of cooling power and a Coefficient of Performance (COP) rating of 1, the AA-480 Series thermoelectric assembly (TEA) has nearly 50% more efficiency than standard air-to-air units offered today. This saves installation and maintenance costs for users as well as space inside mobile base station and cell tower cabinets.

The AA-480 Series TEA has been designed to pass Telcordia test requirements for outdoor environments, and the gaskets, connectors and fans provide a NEMA 4 seal for the enclosure. With an operating temperature range of -40°C to 55°C the AA-480 outdoor cooler is tested up to 100K power cycles.

“The AA-480 Series outdoor cooler uses less energy and takes up less space compared to similar units,” said Anders Kottenauer, Senior Vice President of Laird’s Engineered Thermal Systems Business. “Our AA-480 Series also requires less maintenance, cutting the total cost of ownership as well as the time spent travelling to and from these sometimes remote locations. In addition, the cooler improves the reliability of cellular coverage, keeping people connected during a power outage by protecting the emergency batteries used in wireless base stations.”