Modulating Fan-Powered Economizers
2011-6-1 · Modulating Fan-Powered Economizers. The modulating fan-powered economizer consists of an integrated boiler draft fan and a small-footprint recovery module. A variable-speed fan controls boiler draft. The economizer is designed for high flue-gas temperatures, as well as condensing operation. The module can be of a finned-coil design, like many ...
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