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公开(公告)号:US20150241081A1
公开(公告)日:2015-08-27
申请号:US14641090
申请日:2015-03-06
Applicant: Lennox Industries Inc.
Inventor: Justin McKie , Eric Perez , Herman Marcus Thomas , Steve Schneider
CPC classification number: F24F11/30 , F24F11/41 , F24F12/006 , F24F2140/30
Abstract: A method of defrosting an energy recovery ventilator unit. The method comprises defrosting an energy recovery ventilator unit. The method comprises activating a defrost process of an enthalpy-exchange zone of the energy recovery ventilator unit when an air-flow blockage in the enthalpy-exchange zone coincides with a frost threshold in the ambient environment surrounding the energy recovery ventilator unit. The method also comprises terminating the defrost process when a heat transfer efficiency across the enthalpy-exchange zone returns to within 10 percent of a pre-frosting heat transfer efficiency wherein, the heat transfer efficiency is proportional to a temperature difference between an intake air zone of the energy recovery ventilator and a supply air zone of the energy recovery ventilator divided by a temperature difference between an return air zone of the energy recovery ventilator and the intake air zone.
Abstract translation: 一种能量回收通风机组的除霜方法。 该方法包括对能量回收通气机组进行除霜。 该方法包括当焓交换区域中的气流阻塞与能量回收通风机单元周围的周围环境中的霜冻阈值一致时,激活能量回收通风机单元的焓交换区域的除霜过程。 该方法还包括当跨过焓交换区的热传递效率返回到预结霜传热效率的10%以内时终止除霜过程,其中传热效率与进入空气区之间的温差成比例 能量回收通风机和能量回收通风机的供气区除以能量回收通风机回风区与进气区之间的温差。
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公开(公告)号:US20150168042A1
公开(公告)日:2015-06-18
申请号:US14109745
申请日:2013-12-17
Applicant: Lennox Industries Inc.
Inventor: Rakesh Goel , Eric Perez
IPC: F25B49/02
CPC classification number: F25B49/022 , F25B1/10 , F25B2400/075 , F25B2600/0251 , F25B2600/23
Abstract: In various implementations, an air conditioning system may include one or more compressors. The operation of the compressor(s) may be managed. For example, when an air conditioner is allowed to operate after being shut down, a first compressor may be allowed to operate and a wait time may elapse prior to starting at least one other compressor. When a compressor has multiple stages of operation, in some implementations, a first compressor may be allowed to operate at a low stage and a wait time may elapse prior to starting a higher stage of operation of the first compressor.
Abstract translation: 在各种实施方式中,空调系统可以包括一个或多个压缩机。 可以管理压缩机的操作。 例如,当在关闭之后允许空调器操作时,可以允许第一压缩机操作,并且可以在启动至少一个其他压缩机之前经过等待时间。 当压缩机具有多个操作阶段时,在一些实施方案中,可以允许第一压缩机在低阶段操作,并且等待时间可以在开始第一压缩机的较高操作阶段之前经过。
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公开(公告)号:US11913673B2
公开(公告)日:2024-02-27
申请号:US17751768
申请日:2022-05-24
Applicant: Lennox Industries Inc.
Inventor: Rakesh Goel , Eric Perez , Eric Berg
IPC: F24F1/0007 , F24F6/08 , F24F11/30 , F24F1/022 , F24F1/0059 , F24F11/74 , F24F13/10 , F24F13/02 , F24F11/00 , F24F110/30 , F24F110/22
CPC classification number: F24F6/08 , F24F1/0007 , F24F1/0059 , F24F1/022 , F24F11/0008 , F24F11/30 , F24F11/74 , F24F13/02 , F24F13/10 , F24F2110/22 , F24F2110/30
Abstract: An HVAC system includes an indoor heat-exchange coil disposed between a supply air duct and a return air duct. A damper is disposed in a re-circulation duct and is moveable between an open position and a closed position. A controller is configured to determine if the HVAC system is operating in a heating mode or an air-conditioning mode. Responsive to a determination that the HVAC system is operating in the air-conditioning mode, the controller is configured to determine if the variable-speed indoor circulation fan is operating at a minimum speed and if the relative humidity measured by the humidity sensor is above a pre-determined threshold. Responsive to a determination that the variable-speed indoor circulation fan is operating at the minimum speed and the relative humidity of the enclosed space is above the pre-determined threshold, the controller signals the damper to move to the open position.
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公开(公告)号:US11708981B2
公开(公告)日:2023-07-25
申请号:US17208795
申请日:2021-03-22
Applicant: Lennox Industries Inc.
Inventor: Colin Clara , Eric Perez , Walter E. Davis, II
CPC classification number: F24F3/153 , F25B41/20 , F24F3/1405 , F25B2600/17
Abstract: An HVAC system with a reheat coil is described, the system includes a compressor, a micro-channel condenser and an evaporator. A reversing valve is connected to the compressor, the micro-channel condenser and the reheat coil. The reversing valve is used to direct the refrigerant from the compressor to the micro-channel condenser in a normal mode, and to direct the refrigerant from the compressor to the reheat coil in a reheat mode. The reversing valve can be switched from normal mode to reheat mode when a high pressure condition is detected at an input to the micro-channel condenser, and switched back from reheat mode to normal mode when the high pressure condition has resolved or an amount of time has passed. In the normal mode the refrigerant is returned from the reheat coil into a refrigerant line between the evaporator and the compressor through a restrictor.
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公开(公告)号:US11598557B2
公开(公告)日:2023-03-07
申请号:US17505886
申请日:2021-10-20
Applicant: Lennox Industries Inc.
Inventor: Eric Perez , Randal Poirier , Eric Chanthalangsy , Steven Schneider , Glenn W. Kowald , Ian Burmania
IPC: F24H3/08 , F24H9/1881 , F23D14/02
Abstract: A burner assembly according to aspects of the disclosure includes a burner surface carried by a burner, the burner surface extending outward from a front side of the burner, a housing coupled to the burner on a side opposite the front side of the burner, a gasket disposed between the burner and the housing, a thermally anisotropic protective covering located on the front side of the burner and surrounding a perimeter of the burner surface, and an igniter positioned adjacent to the burner surface.
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公开(公告)号:US20210207823A1
公开(公告)日:2021-07-08
申请号:US17208795
申请日:2021-03-22
Applicant: Lennox Industries Inc.
Inventor: Colin Clara , Eric Perez , Walter E. Davis, II
Abstract: An HVAC system with a reheat coil is described, the system includes a compressor, a micro-channel condenser and an evaporator. A reversing valve is connected to the compressor, the micro-channel condenser and the reheat coil. The reversing valve is used to direct the refrigerant from the compressor to the micro-channel condenser in a normal mode, and to direct the refrigerant from the compressor to the reheat coil in a reheat mode. The reversing valve can be switched from normal mode to reheat mode when a high pressure condition is detected at an input to the micro-channel condenser, and switched back from reheat mode to normal mode when the high pressure condition has resolved or an amount of time has passed. In the normal mode the refrigerant is returned from the reheat coil into a refrigerant line between the evaporator and the compressor through a restrictor.
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公开(公告)号:US10955165B2
公开(公告)日:2021-03-23
申请号:US16208880
申请日:2018-12-04
Applicant: Lennox Industries Inc.
Inventor: Rakesh Goel , Eric Perez
IPC: F24F11/30 , F24F12/00 , F24F110/40 , F24F110/20 , F24F110/30 , F24F110/10
Abstract: An HVAC system includes an evaporator coil disposed between a supply air duct and a return air duct. A re-circulation duct fluidly couples the supply air duct and the return air duct. A damper is disposed in the re-circulation duct and is moveable between an open position and a closed position. A controller is operatively coupled to a variable-speed compressor, a variable-speed circulation fan, and the damper. Responsive to a determination that the variable-speed circulation fan is operating at the minimum speed and the suction pressure is above the pre-determined threshold, the controller signals the damper to move to the open position. Responsive to a determination that the variable-speed circulation fan is not operating at the minimum speed or the suction pressure is below the pre-determined threshold, the controller signals the damper to move to the closed position.
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公开(公告)号:US20200300520A1
公开(公告)日:2020-09-24
申请号:US16892931
申请日:2020-06-04
Applicant: LENNOX INDUSTRIES INC.
Inventor: Eric Perez , Shawn Niemann , Colin Clara , Der-Kai Hung
IPC: F25B41/06
Abstract: A metering device may automatically control fluid flow through a valve. A control system may alter the automatic control of a metering device. In some implementations, a predetermined event may occur to alter the automatic control of the metering device.
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公开(公告)号:US10711998B2
公开(公告)日:2020-07-14
申请号:US15723340
申请日:2017-10-03
Applicant: Lennox Industries, Inc.
Inventor: Eric Perez , Randal Poirier , Eric Chanthalangsy , Steven Schneider
IPC: F23D14/68 , F23M11/04 , F23C9/08 , F23D14/70 , F23D14/02 , F23D14/12 , F23D14/36 , F23L5/02 , F23L1/00 , F23D14/10
Abstract: A fresh-air intake according to aspects of the disclosure includes an outer cover having a pair of side panels disposed in a generally parallel spaced relationship, a top panel coupled to, and disposed generally perpendicular to, each panel of the pair of side panels, a bottom panel disposed generally parallel to the top panel, and a front panel coupled to, and disposed generally perpendicular to, each panel of the pair of side panels and the top panel, the front panel having a window formed therein, a supply line coupled to the bottom panel, a weir extending above the bottom panel and surrounding a junction with the supply line, a baffle disposed inside the outer cover, the baffle being disposed inwardly of the window so as to prevent infiltration of moisture into the supply line, and a weep hole formed in the bottom panel.
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公开(公告)号:US10711997B2
公开(公告)日:2020-07-14
申请号:US15723564
申请日:2017-10-03
Applicant: Lennox Industries Inc.
Inventor: Eric Perez , Randal Poirier , Eric Chanthalangsy , Steven Schneider
Abstract: A burner box assembly according to aspects of the disclosure includes an outer cover, the outer cover having a sloped bottom face that directs condensation away from a heat-exchange tube, a heat-resistant liner having a plurality of panel members, the heat-resistant liner being disposed within the outer cover, a shield disposed between the heat-resistant liner and the sloped bottom face of the outer cover such that an air gap is formed between the shield and the sloped bottom face, and a tubular member abutting at least one of the plurality of panel members and disposed within the heat-exchange tube.
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