Coordinated air-side control of HVAC system

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United States of America Patent

PATENT NO 9897338
SERIAL NO

14386479

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Abstract

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A method and apparatus for controlling an HVAC system. The method may include receiving a fan speed signal from a fan control loop, and choosing among an independent mode, a first linked mode, and a second linked mode, depending on the fan speed signal. The method may also include providing a signal to a pressure control loop to reduce a speed of a supply air fan of an AHU, when the first linked mode is chosen. The method may further include providing a signal to a temperature control loop to decrease a speed of a heat exchange wheel, to decrease a flow rate of a heat exchange fluid to an evaporator coil, or both, when the second linked mode is chosen. The method may additionally include allowing the fan control loop to operate independently of the temperature and pressure control loops, when the independent mode is chosen.

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Patent Owner(s)

Patent OwnerAddress
CARRIER CORPORATION13995 PASTEUR BLVD PALM BEACH GARDENS FL 33418

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fan, Junqiang Glastonbury, US 17 390
Josserand, Olivier La Boisse, FR 17 239
Li, Sheng Shanghai, CN 298 2642
Mijanovic, Stevo South Windsor, US 12 120
Sari, Anthony Lyons, FR 1 5

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