System and method for over heat protection of an air conditioning system

Abstract 5 A method of controlling an air conditioner to protect from over heating and from prolonged inefficient operation when indoor air flow is reduced, the method including the steps of: reducing the operating capacity of a variable compressor when a pre-defined system pressure is reached, adju...

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Hauptverfasser:	MUNRO, JOHN JOSEPH, MUNDY, KEVIN BRIAN, SAINI, AJAY DESHRAJ, SINGH, SUKHWINDER CHAINCHAL, JHA, SUBBHASH SINGHESHWAR
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING BLASTING HEATING LIGHTING MECHANICAL ENGINEERING RANGES VENTILATING WEAPONS
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Zusammenfassung:	Abstract 5 A method of controlling an air conditioner to protect from over heating and from prolonged inefficient operation when indoor air flow is reduced, the method including the steps of: reducing the operating capacity of a variable compressor when a pre-defined system pressure is reached, adjusting the opening of, or the degree to which, the expansion valve is open if another pre-defined pressure is reached or exceeded, changing an operating 10 speed of the outdoor fan if another pre-defined system pressure is reached or exceeded, and/or adjusting the compressor capacity based on fuzzy logic when the system pressure is within other pre-defined ranges. - 1/5 6a 6b 6c 6d 65a 65b 65c 65d INDOOR UNIT 11 68a 68b 68c 68d 62a ZONE 62b 62c 62 S INDOOR- ____ - _____ ___ VARIABLE SPEED O 40 x RETURN 44 SUPPLY METERING 6 68f 66 09 6h DEVICE N 0 HEAT EU NOR 47 E OR 62ZONE 62h CONTROLLER 65e 6f 6gULIMA S65h THERMOSTAT 6e 6f 66g 6h MASTER MLTI LE THERMOSTAT ZONE OUTDOOR UNIT 10 30 DISCHARGE REVERSING 23 SENSOR VALVE _I B37 OUTDOOR 33 METERING OUTDOOR HEAT EXCHANGE SENSOR Figure 1