- Patent Title: Defrost learning algorithm based on time of defrost state operation
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Application No.: US14991673Application Date: 2016-01-08
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Publication No.: US10591173B2Publication Date: 2020-03-17
- Inventor: Darryl Elliott Denton
- Applicant: Trane International Inc.
- Applicant Address: US NJ Piscataway
- Assignee: Trane International Inc.
- Current Assignee: Trane International Inc.
- Current Assignee Address: US NJ Piscataway
- Agency: Conley Rose, P.C.
- Agent Kristian R. Sullivan; J. Robert Brown, Jr.
- Main IPC: F24F11/41
- IPC: F24F11/41 ; F24F11/42 ; F25D21/00 ; F24F11/30

Abstract:
Systems and methods are disclosed that include providing a heating, ventilation, and/or air conditioning (HVAC) system with a controller that may adjust the defrost procedure algorithm by monitor the refrigeration coil temperature sensor and the ambient outdoor temperature sensor, calculate an Actual Coil Delta Temperature (ACDT); compare the calculated ACDT to an Initiate Delta Temperature (DTINIT) associated with the measured ambient outdoor temperature; initiate a defrost procedure in response to the calculated ACDT being greater than or equal to the DTINIT; determine if the duration of the defrost procedure is within a predetermined time threshold; and adjust the duration of a next defrost procedure in response to determining that a predetermined number of consecutive defrost procedures have occurred outside of the predetermined time threshold.
Public/Granted literature
- US20160238301A1 Defrost Learning Algorithm Based on Time of Defrost State Operation Public/Granted day:2016-08-18
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