US 12,320,536 B2
Capacity control for HVAC system
Youssef A. Jaber, Tyler, TX (US); Wayne N. Kraft, Tyler, TX (US); Ragunanthanan Mylsamy, Chennai (IN); Satish Mukundan Thiruvengadam, Chennai (IN); Satheesh Dharmar, Chennai (IN); Arulkumar Kaliyaperumal, Mayiladuthurai (IN); Shivakumar Kolloju, Chennai (IN); and Sunit Agrawal, Chennai (IN)
Assigned to Trane International Inc., Davidson, NC (US)
Filed by Trane International Inc., Davidson, NC (US)
Filed on Dec. 19, 2023, as Appl. No. 18/544,722.
Application 18/544,722 is a continuation of application No. 17/453,984, filed on Nov. 8, 2021, granted, now 11,892,188.
Claims priority of application No. 202131024083 (IN), filed on May 30, 2021.
Prior Publication US 2024/0133575 A1, Apr. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. F24F 11/67 (2018.01); F24F 11/41 (2018.01); F24F 11/74 (2018.01); F24F 110/10 (2018.01); F24F 110/20 (2018.01)
CPC F24F 11/67 (2018.01) [F24F 11/41 (2018.01); F24F 11/74 (2018.01); F24F 2110/10 (2018.01); F24F 2110/20 (2018.01)] 20 Claims
OG exemplary drawing
 
1. A heating, ventilation, and air conditioning (HVAC) system comprising:
HVAC equipment configured to provide conditioned air to a conditioned space that is divided into zones, wherein the HVAC equipment includes a fan configured to provide the conditioned air; and
control circuitry operably coupled to the HVAC equipment and configured to at least:
receive zone priority levels and zone temperature setpoints, at least one of the zones having a higher priority level than others of the zones;
receive an indication of zone ambient temperature values;
determine requested zone capacity values to maintain each of the zone ambient temperature values within a respective threshold deviation;
determine target zone capacity values from the requested zone capacity values and zone size values, and from the zone priority levels responsive to a total of the requested zone capacity values that is less than a minimum capacity of the HVAC system or greater than a maximum capacity of the HVAC system, wherein determining the target zone capacity values includes determining the target zone capacity values to correspond to the requested zone capacity values scaled by respective ones of the zone size values, responsive to the total of the requested zone capacity values between the minimum capacity and the maximum capacity;
operate the fan of the HVAC system to provide the conditioned air to the zones according to respective ones of the target zone capacity values.