HAVC control system and method

A system and method is provided for activating and deactivating heating or cooling stages of an HVAC unit, which includes determining a need for heating or cooling a space to be heated or cooled and activating a heating or cooling stage of the HVAC unit based on the determined need. A monitored temp...

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Bibliographische Detailangaben
Hauptverfasser:	SMITH SAMUEL, CAMPBELL TIMOTHY D, WALLACE JOHN, MORROW DENNIS R
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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Beschreibung
Zusammenfassung:	A system and method is provided for activating and deactivating heating or cooling stages of an HVAC unit, which includes determining a need for heating or cooling a space to be heated or cooled and activating a heating or cooling stage of the HVAC unit based on the determined need. A monitored temperature is compared with a first temperature setpoint and a monitored on-time of the heating or cooling stage is compared with a first time period setpoint. The heating or cooling stage is deactivated based on the comparison of the monitored temperature with the first temperature setpoint, when the monitored on-time is greater than the first time period setpoint. The monitored temperature is then compared with a second temperature setpoint. The heating or cooling stage is reactivated based on a comparison of the monitored temperature with the second temperature setpoint, when a monitored off-time is greater than the second time period setpoint.