SYSTEM AND METHOD FOR DETECTING FLOW RESTRICTIONS ACROSS A COIL OF AN OUTDOOR HEAT EXCHANGER
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United States of America Patent
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app pub date -
Jul 26, 2017
filing date -
Jul 27, 2016
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A heating, ventilation, and air conditioning (HVAC) system includes an outdoor unit having a heat exchanger. The heat exchanger includes a coil configured to route refrigerant therethrough. The HVAC system also includes a motor configured to drive a fan, a motor controller configured to regulate operation of the motor, and a global controller configured to regulate operation of global aspects of the HVAC system. The HVAC system also includes a power sensor configured to detect a power parameter relating to a power input to the motor controller, a power output from the motor controller, or a power input to the motor, wherein the global controller is configured to receive data indicative of the power parameter from the power sensor, and wherein the global controller is configured to analyze the data indicative of the power parameter to detect a frozen coil condition, a fouled coil condition, or both.
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Cited Art Landscape
Patent Citation Ranking
- 7 Citation Count
- G05B Class
- 24.54 % this patent is cited more than
- 7 Age