| 摘要 |
One embodiment of a boiler system mechanical combustion air unit comprising a cylindrical main housing (102), a pressure sensing means composed of sensor cap (110) and sensor hole (124), a variable speed fan (104) and motor (106) driven by a variable speed drive (108) for moving a gaseous fluid at a variable volumetric flow rate, a temperature sensing means (114) for measuring the temperature of the gaseous fluid, and a controller (116) comprising a pressure transducer and electronic control. Other embodiments are described.
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