公开(公告)号：US20170176049A1

公开(公告)日：2017-06-22

申请号：US14976485

申请日：2015-12-21

申请人： Lennox Industries Inc.

发明人： Eric PEREZ ,  Steven SCHNEIDER ,  Bryan SMITH ,  John TRAN

IPC分类号： F24H9/20

摘要： A heating system retrofitted to be operable through multiple heat stages at a constant fuel-air mixture includes a tube heat exchanger having a plurality of burners, a combustion air blower (CAB) having an exhaust vent connected with the plurality of burners, the CAB operable at a first speed and a second speed, a first valve connecting a fuel source to a first subset of the plurality of burners, and a second valve connecting a fuel source to a second subset of the plurality of burners.

公开(公告)号：US20200340668A1

公开(公告)日：2020-10-29

申请号：US16925446

申请日：2020-07-10

申请人： Lennox Industries Inc.

发明人： Eric Perez ,  Randal POIRIER ,  Eric CHANTHALANGSY ,  Steven SCHNEIDER

IPC分类号： F23D14/68 ,  F23M11/04 ,  F23C9/08 ,  F23D14/02 ,  F23D14/70 ,  F23D14/12 ,  F23D14/36 ,  F23L5/02 ,  F23L1/00 ,  F23D14/10

摘要： 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.

公开(公告)号：US20170176048A1

公开(公告)日：2017-06-22

申请号：US14976354

申请日：2015-12-21

申请人： Lennox Industries Inc.

发明人： Steven SCHNEIDER ,  Eric PEREZ ,  Bryan SMITH ,  John TRAN

IPC分类号： F24H3/08 ,  F24H3/02 ,  F24H3/00

CPC分类号： F24H3/087 ,  F24H3/006 ,  F24H3/025

摘要： A modulating heating system includes a tube heat exchanger having a plurality of burners, a combustion air blower (CAB) having an exhaust vent connected with the plurality of burners, the CAB operable at a first speed and a second speed, a first valve connecting a fuel source to a first subset of the plurality of burners, and a second valve connecting a fuel source to a second subset of the plurality of burners, wherein the first and second valves each have a low fire rate and a high fire rate. The heat exchanger is operable through multiple heat stages at a constant fuel-air mixture.

公开(公告)号：US20190101283A1

公开(公告)日：2019-04-04

申请号：US15723340

申请日：2017-10-03

申请人： Lennox Industries Inc.

发明人： Eric PEREZ ,  Randal POIRIER ,  Eric CHANTHALANGSY ,  Steven SCHNEIDER

IPC分类号： F23D14/68 ,  F23M11/04 ,  F23C9/08 ,  F23D14/70 ,  F23D14/02

CPC分类号： F23D14/68 ,  F23C9/08 ,  F23D14/02 ,  F23D14/10 ,  F23D14/12 ,  F23D14/36 ,  F23D14/70 ,  F23D2207/00 ,  F23D2900/00011 ,  F23L1/00 ,  F23L5/02 ,  F23M11/042

摘要： 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.

公开(公告)号：US20190101282A1

公开(公告)日：2019-04-04

申请号：US15723564

申请日：2017-10-03

申请人： Lennox Industries Inc.

发明人： Eric PEREZ ,  Randal POIRIER ,  Eric CHANTHALANGSY ,  Steven SCHNEIDER

IPC分类号： F23D14/60

CPC分类号： F23D14/60 ,  F23D14/02 ,  F23D14/62 ,  F23D2208/005 ,  F23D2900/00018 ,  F23L17/005 ,  F24H8/006 ,  F24H9/0068

摘要： 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.