公开(公告)号：US09897340B2

公开(公告)日：2018-02-20

申请号：US15364415

申请日：2016-11-30

Applicant: Lennox Industries Inc.

Inventor： Jonathan Douglas ,  Erroll Eaton

IPC: F24F11/00 ,  F24F13/04 ,  F24F13/14 ,  F24F7/06 ,  F24F13/15

CPC classification number: F24F13/04 ,  F24F7/06 ,  F24F11/0001 ,  F24F11/46 ,  F24F13/1413 ,  F24F13/15 ,  F24F2011/0002 ,  F24F2013/1473 ,  Y02B30/767

Abstract: An economizer having a first air inlet, a second air inlet and an air outlet, a method of operating an economizer and a heating, ventilation and air conditioning (HVAC) system employing the economizer. In one embodiment, the economizer includes: (1) a first damper blade assembly in fluid communication with the first air inlet and the air outlet and having a first plurality of damper blades configured to move in parallel and (2) a second damper blade assembly in fluid communication with the second air inlet and the air outlet and having a second plurality of damper blades configured to move in opposition.