Technical Systems Evaporative Condenser Chillers are able to dramatically reduce your energy and installation costs. Series 35E2 chillers are 30-40% more energy efficient than air cooled chillers, yet because they are a single piece package, they do not have the high installation costs of traditional water cooled systems. By including both high efficiency operation and a built to order factory tested solution, 35E2 Chillers reduce your utility costs, are easier and faster to install, and provide the best return on your investment.