发明名称 |
Gas furnace with variable speed draft inducer |
摘要 |
A method of controlling a variable speed draft inducer motor and fan in a gas furnace. The method comprises the steps of: detecting a first fault driving the motor to a maximum operating range; detecting a second fault forcing the motor to operate towards a minimum operating range; and generating a fault signal if both faults are detected substantially simultaneously.
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申请公布号 |
US6257870(B1) |
申请公布日期 |
2001.07.10 |
申请号 |
US19980217756 |
申请日期 |
1998.12.21 |
申请人 |
AMERICAN STANDARD INTERNATIONAL INC. |
发明人 |
HUGGHINS G. JEFFREY;HELT ROBERT W.;HOLMES LEONARD W.;VERSHAW JAMES T.;STORM TIMOTHY W. |
分类号 |
F23N3/08;F23N5/20;F23N5/24;(IPC1-7):F23N3/00 |
主分类号 |
F23N3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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