<p>A heated air makeup unit comprising a heating chamber with a modulated furnace one or more non-modulated furnaces air temperature control and efficient furnace operation over a wide heating rate range. The utilization of indirect fired furnaces in the heated air makeup unit is disclosed. A control system is included to provide control of heated air temperature to within +/- 1 F° using continuous control of the heating rate of the modulated furnace and stepwise activation and de-activation of the non-modulated furnaces in response to heating demand. A programmed combustion air flow controller programmed to provide optimal airflow for any gas flow in a flow range of a modulating gas valve is provided to assure combustion efficiencies of at least 83%.</p>
申请公布号
WO2011041039(A1)
申请公布日期
2011.04.07
申请号
WO2010US46048
申请日期
2010.08.20
申请人
CAPTIVE-AIRE SYSTEMS, INC.;GRIFFIN, WILLIAM BRIAN;WELLINGTON, BRANDON CHARLES
发明人
GRIFFIN, WILLIAM BRIAN;WELLINGTON, BRANDON CHARLES