Granted Patent B2

US 12,241,644 · App. 18/314,955 · Granted Mar 4, 2025

Inventors: Douglas Notaro (Cypress, TX); Adway Dogra (Cypress, TX)

Assignee: Goodman Manufacturing Company LP

F24F11/30F24F11/62F24F11/61F24F2110/10

Abstract

Claims (30)

1. A method for controlling air temperature in a building, comprising:

obtaining as user input a target rate of change (ROC) of air temperature to be achieved in the building; and

operating one or more equipment of a heating ventilation and air-conditioning (HVAC) system to achieve the target ROC, wherein operating the one or more equipment comprises:

operating the one or more equipment of the HVAC system at an initial capacity; and

adjusting the capacity at which the one or more equipment of the HVAC system operates to achieve the target ROC of the air temperature in the building.

2. The method of claim 1 , further comprising:

sampling the air temperature in the building at a plurality of sampling events according to a schedule; and

adjusting the capacity of the one or more equipment by:

increasing the capacity at which the one or more equipment operates by a first amount in response to detecting no change in the air temperature in a desired direction between two sampling events;

calculating a current ROC in the air temperature between the two sampling events in response to detecting a change in the air temperature in the desired direction; and

in response to calculating the current ROC:

increasing the capacity at which the one or more equipment operates by a second amount when the current ROC is less the target ROC; or

decreasing the capacity at which the one or more equipment operates by a third amount when the current ROC is same as or exceeds the target ROC.

3. The method of claim 2 , further comprising:

receiving a heating call or a cooling call from one or more thermostats configured to record the air temperature in the building; and

operating the one or more equipment of the HVAC system to achieve the target ROC, in response to the heating call or the cooling call.

4. The method of claim 3 , further comprising repeating the sampling and the adjusting steps until a heating call or a cooling call is removed.

5. The method of claim 4 , further comprising:

initializing a stabilization period in response to receiving the heating call or the cooling call; and

initialize the sampling after expiration of the stabilization period.

6. The method of claim 2 , wherein at least one of the first amount, the second amount or the third amount is a fixed percentage of a maximum capacity of the one or more equipment.

7. The method of claim 1 , further comprising:

operating the one or more equipment of the HVAC system by initializing a first equipment of the one or more equipment;

detecting that the capacity of the first equipment is set to equal or exceed a selected maximum capacity of the first equipment;

in response to the detecting, switching from operating the first equipment to operating a second equipment of the one or more equipment; and

adjusting the capacity at which the second equipment operates to achieve the target ROC of the air temperature in the building.

8. The method of claim 7 , further comprising:

detecting that the capacity of the second equipment is set to equal or less than a selected minimum capacity of the second equipment; and

in response, switching back to operating the first equipment.

9. The method of claim 1 , wherein the one or more equipment comprises at least one heating equipment capable of operating at a first plurality of capacities and at least one cooling equipment capable of operating at a second plurality of capacities.

Assignments (1)

Continuity (4)

References Cited (48)