Invention Grant
- Patent Title: HVAC system with automated flow direction detection
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Application No.: US15349979Application Date: 2016-11-11
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Publication No.: US09952074B2Publication Date: 2018-04-24
- Inventor: Mark G. Freund , Troy A. Goldschmidt , Gary W. Gavin , Brandon A. Sloat , Timothy C. Gamroth
- Applicant: Johnson Controls Technology Company
- Applicant Address: US MI Auburn Hills
- Assignee: Johnson Controls Technology Company
- Current Assignee: Johnson Controls Technology Company
- Current Assignee Address: US MI Auburn Hills
- Agency: Foley & Lardner LLP
- Main IPC: G01F1/34
- IPC: G01F1/34 ; F24F11/04 ; F24F11/00

Abstract:
A heating, ventilation, or air conditioning (HVAC) system with automated flow direction detection is provided. The HVAC system includes one or more hoses configured to provide airflow from HVAC equipment, a bidirectional pressure sensor coupled to the hoses, and a controller coupled to the bidirectional pressure sensor. The controller is configured to receive a signal from the bidirectional pressure sensor, determine a direction of the airflow relative to the bidirectional pressure sensor based on the signal, correct the signal for a reversed hose polarity relative to the bidirectional sensor based on the direction of the airflow, and perform a control activity using the corrected signal.
Public/Granted literature
- US20170059373A1 HVAC SYSTEM WITH AUTOMATED FLOW DIRECTION DETECTION Public/Granted day:2017-03-02
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