Trane International Inc.

Eugene R Shedivy

Ronnie R Moffitt

Aaron E Opatz

James Kenneth McKeever

John Arthur Murphy

A method of controlling a discharge air reset in an heating, ventilation, air conditioning, and refrigeration (HVACR system includes determining, by a controller, a space temperature in a conditioned space, a setpoint temperature of the conditioned space, and an operating mode of a variable-air-volume (VAV) box for the conditioned space. The controller determines whether the operating mode of the VAV box matches an operating mode of an HVACR unit. A deviation from the setpoint temperature of the conditioned space for the VAV box for the conditioned is calculated in response to determining the VAV box is in a same mode as the HVACR unit. A statistical deviation from the setpoint temperature of the conditioned space is calculated. A discharge air setpoint temperature is determined based on the statistical deviation from the setpoint temperature of the conditioned space. The controller sets the discharge air setpoint temperature of the HVACR unit using the determined discharge air setpoint temperature.

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Saint Paul, MN, United States of America

Eugene R Shedivy