SYSTEM AND METHOD FOR DETECTING FLOW RESTRICTIONS ACROSS A COIL OF AN OUTDOOR HEAT EXCHANGER

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United States of America Patent

SERIAL NO

15660790

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
JOHNSON CONTROLS TECHNOLOGY COMPANY2875 HIGH MEADOW CIRCLE AUBURN HILLS MI 48326

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Atchison, Shaun B Wichita, US 71 616
Bentz, Jedidiah O Wichita, US 32 1381
Gillette, Theresa N Wichita, US 62 593
Hern, Shawn A Park City, US 39 219
McCune, Tyler El Dorado, US 17 374
Noor, Aneek M Wichita, US 22 121
Rigg, Brian D Douglass, US 58 916
Tasker, Tom R Andover, US 37 444

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