Invention Grant
- Patent Title: Heat pump comprising primary defrost operation and secondary defrost operation and method of operating heat pump
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Application No.: US13690645Application Date: 2012-11-30
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Publication No.: US10041721B2Publication Date: 2018-08-07
- Inventor: Yi Qu , Bruce Perkins , Chris Mchugh , Mark Olsen
- Applicant: Lennox Industries Inc.
- Applicant Address: US TX Richardson
- Assignee: Lennox Industries Inc.
- Current Assignee: Lennox Industries Inc.
- Current Assignee Address: US TX Richardson
- Agency: Baker Botts L.L.P.
- Main IPC: F25B49/00
- IPC: F25B49/00 ; F25D21/00 ; F25B47/02 ; F25B13/00
Abstract:
One embodiment of the present disclosure comprises a method of managing defrost operations in HVAC systems. In one embodiment a primary defrost operation comprises allowing a cooling cycle of the heat pump and a secondary defrost operation comprises allowing fans of the heat pump to operate at a low speed.
Public/Granted literature
- US20140150479A1 Secondary Defrost for Heat Pumps Public/Granted day:2014-06-05
Information query
